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Whyte EF, Richter C, O'Connor S, Moran KA. Effects of a dynamic core stability program on the biomechanics of cutting maneuvers: A randomized controlled trial. Scand J Med Sci Sports 2017; 28:452-462. [PMID: 28605148 DOI: 10.1111/sms.12931] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2017] [Indexed: 11/28/2022]
Abstract
Deficits in trunk control predict ACL injuries which frequently occur during high-risk activities such as cutting. However, no existing trunk control/core stability program has been found to positively affect trunk kinematics during cutting activities. This study investigated the effectiveness of a 6-week dynamic core stability program (DCS) on the biomechanics of anticipated and unanticipated side and crossover cutting maneuvers. Thirty-one male, varsity footballers participated in this randomized controlled trial. Three-dimensional trunk and lower limb biomechanics were captured in a motion analysis laboratory during the weight acceptance phase of anticipated and unanticipated side and crossover cutting maneuvers at baseline and 6-week follow-up. The DCS group performed a DCS program three times weekly for 6 weeks in a university rehabilitation room. Both the DCS and control groups concurrently completed their regular practice and match play. Statistical parametric mapping and repeated measures analysis of variance were used to determine any group (DCS vs control) by time (pre vs post) interactions. The DCS resulted in greater internal hip extensor (P=.017, η2 =0.079), smaller internal knee valgus (P=.026, η2 =0.076), and smaller internal knee external rotator moments (P=.041, η2 =0.066) during anticipated side cutting compared with the control group. It also led to reduced posterior ground reaction forces for all cutting activities (P=.015-.030, η2 =0.074-0.105). A 6-week DCS program did not affect trunk kinematics, but it did reduce a small number of biomechanical risk factors for ACL injury, predominantly during anticipated side cutting. A DCS program could play a role in multimodal ACL injury prevention programs.
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Jakobi A, Perrin R, Knopf A, Richter C. PV-0138: Pencil beam scanning treatments in free-breathing lung cancer patients – is 5 mm motion a limit? Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30581-9] [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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Meijers A, Richter C, Dessy F, Widder J, Korevaar E, Jakobi A, Ribeiro C, Langendijk J, Knopf A. OC-0488: Thoracic tumor treatment course assessment based on 4D dose accumulation for scanned proton therapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30928-3] [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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Wohlfahrt P, Möhler C, Enghardt W, Greilich S, Richter C. OC-0150: Dual-energy CT-based proton treatment planning to assess patient-specific range uncertainties. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30593-5] [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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80
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Jung S, Lademann J, Darvin M, Richter C, Pedersen C, Richter H, Schanzer S, Kottner J, Blume-Peytavi U, Røpke M. 272 Structural changes in human skin after topical application of glucocorticoids assessed by in vivo imaging technologies. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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81
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Nicolas JD, Bernhardt M, Krenkel M, Richter C, Luther S, Salditt T. Combined scanning X-ray diffraction and holographic imaging of cardiomyocytes. J Appl Crystallogr 2017. [DOI: 10.1107/s1600576717003351] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
This article presents scanning small-angle X-ray scattering (SAXS) experiments on the actomyosin assemblies in freeze-dried neo-natal rat cardiac muscle cells. By scanning the cells through a sub-micrometre focused beam, the local structure and filament orientation can be probed and quantified. To this end, SAXS data were recorded and analyzed directly in reciprocal space to generate maps of different structural parameters (scanning SAXS). The scanning SAXS experiments were complemented by full-field holographic imaging of the projected electron density, following a slight rearrangement of the instrumental setup. It is shown that X-ray holography is ideally suited to complete missing scattering data at low momentum transfer in the structure factor, extending the covered range of spatial frequencies by two orders of magnitude. Regions of interest for scanning can be easily selected on the basis of the electron density maps. Finally, the combination of scanning SAXS and holography allows for a direct verification of possible radiation-induced structural changes in the cell.
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Lang S, Richter C, Richter O, Böhringer D, Geerling G, Reinhard T. Keratoplastiken im Kindes- und Jugendalter. Klin Monbl Augenheilkd 2017; 235:319-323. [DOI: 10.1055/s-0042-124512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Zusammenfassung
Hintergrund Die Voraussetzungen für das langfristige Überleben einer perforierenden Keratoplastik sind im Säuglings- und Kindesalter aufgrund immunologischer Besonderheiten, der eingeschränkten Untersuchbarkeit sowie reduzierter Compliance und Therapieadhärenz à priori ungünstig. Jedoch stellt eine Hornhautübertragung oftmals die einzige Möglichkeit zur Prävention einer Amblyopie dar und ist somit alternativlos. Wir untersuchten das Indikationsspektrum, das Transplantatüberleben und das Komplikationsspektrum in einem bizentrischen Register aller Keratoplastiken im Kindesalter.
Material und Methoden Aus den elektronischen Transplantatregistern der beiden Zentren wurden alle Patienten recherchiert, die zum Zeitpunkt der jeweils 1. Keratoplastik das 18. Lebensjahr noch nicht vollendet hatten. Aus den Krankenakten wurden die Indikation, etwaiges Transplantatversagen, die Sehschärfe, Verlust des Augapfels und weitere Komplikationen systematisch recherchiert.
Ergebnisse Es wurden insgesamt 104 Augen von 95 Patienten (54 % weiblich) identifiziert. Das Durchschnittsalter bei der Operation betrug im Median 14 Jahre (Quartile 8 und 16 Jahre). Die Nachbeobachtungszeit lag im Median bei 2,7 Jahren. Es zeigten sich folgende Indikationen: Keratokonus (39 %), perforierende Verletzung (18 %), nicht herpetische Hornhautnarben (12 %), herpetische Hornhautnarben (6 %), Sklerokornea (3 %), Verätzung (3 %) und die heterogene Gruppe der sonstigen Indikationen (19 %). Das nach Kaplan-Meier geschätzte klare Transplantatüberleben reichte zum Zeitpunkt der Durchschnittsnachbeobachtungszeit von 100 % (Keratokonus) bis 35 % (Sklerokornea). Ein Verlust des Augapfels war ausschließlich nach perforierender Verletzung (n = 2) zu verzeichnen. Nach 1 Jahr sind in der Kaplan-Meier-Schätzung alle Transplantate in der Gruppe der Säuglinge eingetrübt. In der Gruppe der Kleinkinder bis Jugendlichen sind 90 % der Transplantate zu diesem Zeitpunkt noch klar.
Schlussfolgerungen Die Prognose der Keratoplastik im Kindesalter hängt sowohl von der initialen Indikation und damit indirekt von der Grunderkrankung als auch vom Alter ab. Eine besonders schlechte Prognose zeigte die Gruppe der Säuglinge mit einem nur sehr kurzen Transplantatüberleben. Bei den Indikationen zeigte die Gruppe der Kinder mit Keratokonus die besten Ergebnisse. Als prognostisch ungünstig erwiesen sich Sklerokornea sowie perforierende Augenverletzungen.
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Patwardhan SV, Richter C, Vogt A, Blume-Peytavi U, Canfield D, Kottner J. Measuring acne using Coproporphyrin III, Protoporphyrin IX, and lesion-specific inflammation: an exploratory study. Arch Dermatol Res 2017; 309:159-167. [PMID: 28180934 PMCID: PMC5348552 DOI: 10.1007/s00403-017-1718-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 01/06/2017] [Accepted: 01/17/2017] [Indexed: 01/20/2023]
Abstract
Propionibacterium acnes: (P. acnes) produce Porphyrins; however, fluorescence measurement of Porphyrins from Ultraviolet-A (UVA) images has failed to establish a correlation. Acne clinical research and imaging has ignored the spectral excitation-emission characteristics and the exact pattern of the Porphyrins synthesized by P. acnes. In this exploratory study, for the first time, the possible relationships of Coproporphyrin III (CpIII) and Protoporphyrin IX (PpIX) fluorescence as well as acne lesion-specific inflammation measurements with clinical signs of acne are investigated. Furthermore, the sensitivity of these measurements in tracking and differentiating the known treatment effects of Benzoyl Peroxide (BPO) 5%, and combination of Clindamycin + BPO are also evaluated. Comedonal and papulopustular lesions identified by investigators during a live assessment of 24 mild-to-severe acne subjects were compared with fluorescence and inflammation measurements obtained from analysis of VISIA®-CR images. CpIII fluorescence spots showed a strong correlation (r = 0.69-0.83), while PpIX fluorescence spots showed a weak correlation (r = 0.19-0.27) with the investigators' comedonal lesion counts. A strong correlation was also observed between the investigators' papulopustular lesion counts and acne lesion-specific inflammation (r = 0.76). Our results suggest that CpIII fluorescence and acne lesion-specific-inflammation measurement can provide objective indication of comedonal and papulopustular acne severity, respectively. Furthermore, these measurements may be more sensitive and specific in evaluating treatment effects and early signs of acne lesion progression compared to investigators' lesion counts.
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Jansen WH, Heyes J, Richter C. Die Anwendung der Spektralanalyse zur quantitativen Bestimmung von Alkalien und Erdalkalien. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zpch-1935-17427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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85
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Jansen WH, Heyes J, Richter C. Die Anwendung der Spektralanalyse zur quantitativen Bestimmung von Alkalien und Erdalkalien. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zpch-1934-16821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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86
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Gil L, van de Ven MJT, Richter C. [Joining forces for quality improvement in tuberculosis control]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 2017; 161:D868. [PMID: 28098042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The incidence of tuberculosis (TB) in the Netherlands is declining every year. We fear there may be a loss of knowledge and awareness of detecting TB in the new generation of medical specialists. As medical specialists a great challenge lies before us in maintaining the quality of TB control in the Netherlands. Collaboration between pulmonologist, infectious disease specialist, microbiologist and the public health services is a necessity. Here we describe how, in the region of Arnhem, we work closely with these medical specialists based on structural multidisciplinary meetings. We also describe two of the quality indicators - doctor's delay and HIV testing policy - which are included in the national plan for TB control for 2016-2020. We explain how we intend to maintain and improve the quality of TB control by means of our structural meetings and collaboration.
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Richter C, Trojahn C, Hillmann K, Dobos G, Kanti V, Vogt A, Blume-Peytavi U, Kottner J. Sensitivity to change of the Dermatology Life Quality Index in adult females with facial acne vulgaris: a validation study. J Eur Acad Dermatol Venereol 2017; 31:169-174. [PMID: 27393576 DOI: 10.1111/jdv.13757] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 03/30/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND The postadolescent form of acne papulopustulosa, also referred to as 'acne tarda' can have substantial negative impact on Quality of Life, especially in adult female patients. OBJECTIVE Although the Dermatology Life Quality Index (DLQI) is widely used, empirical evidence about its performance in adult female acne patients is lacking. METHODS In this prospective cohort study, we have investigated the sensitivity to change of the DLQI in 53 female adult acne patients with mild to moderate facial acne treated with azelaic acid (AzA) 15% gel twice daily over 24 weeks. RESULTS Mean Investigator Static Global Assessment (ISGA) score was 2.3 (SD 0.5) at baseline and ranged from 0.9 (SD 0.3) to 2.1 (SD 0.4) at the end of the study in the 'Highly Improved' and 'Unchanged' responder groups respectively. The mean baseline DLQI score was 5.1 (SD 4.2). The Effect Size in the responder group 'Highly Improved' was 0.66; in group 'Improved' 0.62 and 0.23 in group 'Unchanged'. At the end of study, the mean DLQI score ranged from 1.1 (SD 1.5) in the 'Highly Improved' group to 3.7 (SD 6.0) in the 'Unchanged' group. CONCLUSION The results support the sensitivity to change of the DLQI in this population.
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Richter C, Franklyn-Miller A, King E, Falvey E. Optimal Testing battery to access ACL rehabilitation status. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.01.041] [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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89
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Kallayanamitra C, Saenna P, Steele J, Richter C, Wilcox B, Potapohn M. Using a One Health approach to understand risk for trichinellosis among northern Thai ethnic minorities. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Priegnitz M, Barczyk S, Nenoff L, Golnik C, Keitz I, Werner T, Mein S, Smeets J, Vander Stappen F, Janssens G, Hotoiu L, Fiedler F, Prieels D, Enghardt W, Pausch G, Richter C. Towards clinical application: prompt gamma imaging of passively scattered proton fields with a knife-edge slit camera. Phys Med Biol 2016; 61:7881-7905. [PMID: 27779120 DOI: 10.1088/0031-9155/61/22/7881] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Prompt γ-ray imaging with a knife-edge shaped slit camera provides the possibility of verifying proton beam range in tumor therapy. Dedicated experiments regarding the characterization of the camera system have been performed previously. Now, we aim at implementing the prototype into clinical application of monitoring patient treatments. Focused on this goal of translation into clinical operation, we systematically addressed remaining challenges and questions. We developed a robust energy calibration routine and corresponding quality assurance protocols. Furthermore, with dedicated experiments, we determined the positioning precision of the system to 1.1 mm (2σ). For the first time, we demonstrated the application of the slit camera, which was intentionally developed for pencil beam scanning, to double scattered proton beams. Systematic experiments with increasing complexity were performed. It was possible to visualize proton range shifts of 2-5 mm with the camera system in phantom experiments in passive scattered fields. Moreover, prompt γ-ray profiles for single iso-energy layers were acquired by synchronizing time resolved measurements to the rotation of the range modulator wheel of the treatment system. Thus, a mapping of the acquired profiles to different anatomical regions along the beam path is feasible and additional information on the source of potential range shifts can be obtained. With the work presented here, we show that an application of the slit camera in clinical treatments is possible and of potential benefit.
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Günther A, Harding U, Weisner N, Jürgen S, Richter C. Ein Jahr Tätigkeit von Notfallsanitätern in einem städtischen Rettungsdienstbereich. DER NOTARZT 2016. [DOI: 10.1055/s-0042-110686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Richter C. State of the art atmospheric dispersion modelling: should the Gaussian plume model still be used? KERNTECHNIK 2016. [DOI: 10.3139/124.110727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
For regulatory purposes with respect to licensing and supervision of airborne releases of nuclear installations, the Gaussian plume model is still in use in Germany. However, for complex situations the Gaussian plume model is to be replaced by a Lagrangian particle model. Now the new EU basic safety standards for protection against the dangers arising from exposure to ionising radiation (EU BSS) [1] asks for a realistic assessment of doses to the members of the public from authorised practices. This call for a realistic assessment raises the question whether dispersion modelling with the Gaussian plume model is an adequate approach anymore or whether the use of more complex models is mandatory.
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Franklyn-Miller A, Richter C, King E, Gore S, Moran K, Strike S, Falvey EC. Athletic groin pain (part 2): a prospective cohort study on the biomechanical evaluation of change of direction identifies three clusters of movement patterns. Br J Sports Med 2016; 51:460-468. [PMID: 28209597 PMCID: PMC5566094 DOI: 10.1136/bjsports-2016-096050] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2016] [Indexed: 12/02/2022]
Abstract
Background Athletic groin pain (AGP) is prevalent in sports involving repeated accelerations, decelerations, kicking and change-of-direction movements. Clinical and radiological examinations lack the ability to assess pathomechanics of AGP, but three-dimensional biomechanical movement analysis may be an important innovation. Aim The primary aim was to describe and analyse movements used by patients with AGP during a maximum effort change-of-direction task. The secondary aim was to determine if specific anatomical diagnoses were related to a distinct movement strategy. Methods 322 athletes with a current symptom of chronic AGP participated. Structured and standardised clinical assessments and radiological examinations were performed on all participants. Additionally, each participant performed multiple repetitions of a planned maximum effort change-of-direction task during which whole body kinematics were recorded. Kinematic and kinetic data were examined using continuous waveform analysis techniques in combination with a subgroup design that used gap statistic and hierarchical clustering. Results Three subgroups (clusters) were identified. Kinematic and kinetic measures of the clusters differed strongly in patterns observed in thorax, pelvis, hip, knee and ankle. Cluster 1 (40%) was characterised by increased ankle eversion, external rotation and knee internal rotation and greater knee work. Cluster 2 (15%) was characterised by increased hip flexion, pelvis contralateral drop, thorax tilt and increased hip work. Cluster 3 (45%) was characterised by high ankle dorsiflexion, thorax contralateral drop, ankle work and prolonged ground contact time. No correlation was observed between movement clusters and clinically palpated location of the participant's pain. Conclusions We identified three distinct movement strategies among athletes with long-standing groin pain during a maximum effort change-of-direction task These movement strategies were not related to clinical assessment findings but highlighted targets for rehabilitation in response to possible propagative mechanisms. Trial registration number NCT02437942, pre results.
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Richter C, Schneider C, Quick MT, Volz P, Mahrwald R, Hughes J, Dick B, Alexiev U, Ernsting NP. Dual-fluorescence pH probe for bio-labelling. Phys Chem Chem Phys 2016; 17:30590-7. [PMID: 26524563 DOI: 10.1039/c5cp05454k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Although seminaphtorhodafluor (SNARF) dyes are already widely used to measure pH in cells and at biofilms, their synthesis has low yield and results in an unspecific position of a carboxy-group. The separation of 5'- and 6'-carboxy-SNARF reveals a pKa difference of 0.15, calling into question pH measurements with the (commercially available) mixture. Here we replace the bulky external dicarboxyphenyl ring with a propionate group and evaluate the spectral properties of the new derivative. Proceeding to the ethyl-iodoacetamide, covalent linkage to cysteine protein sites is achieved efficiently as shown with a cyanobacterial phytochrome, extending the scarce application of SNARF in bio-labelling in the current literature. Application in fluorescence lifetime imaging is demonstrated both with the lifetime-based and ratiometric-yield method.
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Weijsenfeld AM, Smit C, Cohen S, Wit FWNM, Mutschelknauss M, van der Knaap LC, van Zonneveld LM, Zomer BJ, Nauta N, Patist JC, Kuipers-Jansen MHJ, Smit EP, Blokhuis C, Pajkrt D, Weijsenfeld AM, Cohen S, Blokhuis C, van der Plas A, Scherpbier HJ, Mutschelknauss M, Nellen FJB, Prins JM, Pajkrt D, Smit C, Wit FWNM, Reiss P, van der Knaap L, Visser E, van Zonneveld LM, Vriesde ME, Bassant NY, van der Ende ME, van Rossum AMC, Driessen GJA, Fraaij PLA, Smit JV, Smit EP, Kastelijns MPW, den Hollander JG, Pogány K, Moons C, Kroon FP, Oude Geerdink E, van der Meche IB, Schouten WEM, Brinkman K, Ter Beest G, Gisolf EH, Richter C, Zomer BJ, Strik-Albers R, van der Flier M, Henriet SS, Koopmans PP, Patist JC, Nauta N, Geelen SPM, Wolfs TFW, Hoepelman IM, Mudrikova T, van der Meulen PA, de Jonge H, Scholvink EH, Bierman WFW, van den Berg JF, Bouwhuis JW, Faber S, van Vonderen M, Schippers JA, Lowe SH, Kuipers-Jansen MHJ, van Kasteren MEE, Brouwer AE, Pronk DC, Kortmann W. Virological and Social Outcomes of HIV-Infected Adolescents and Young Adults in The Netherlands Before and After Transition to Adult Care. Clin Infect Dis 2016; 63:1105-1112. [PMID: 27439528 DOI: 10.1093/cid/ciw487] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 07/06/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND As a result of effective combination antiretroviral therapy (cART) and advanced supportive healthcare, a growing number of human immunodeficiency virus (HIV)-infected children survive into adulthood. The period of transition to adult care is often associated with impaired adherence to treatment and discontinuity of care. We aimed to evaluate virological and social outcomes of HIV-infected adolescents and young adults (AYAs) before and after transition, and explore which factors are associated with virological failure. METHODS We included 59 HIV-infected AYAs from the Netherlands who had entered into pediatric care and transitioned from pediatric to adult healthcare. We used HIV RNA load and cART data from the Dutch Stichting HIV Monitoring database (1996-2014), and collected social and treatment data from patients' medical records from all Dutch pediatric HIV treatment centers and 14 Dutch adult treatment centers involved. We evaluated risk factors for virological failure (VF) in a logistic regression model adjusted for repeated measurements. RESULTS HIV VF occurred frequently during the study period (14%-36%). During the transition period (from 18 to 19 years of age) there was a significant increase in VF compared with the reference group of children aged 12-13 years (odds ratio, 4.26 [95% confidence interval, 1.12-16.28]; P = .03). Characteristics significantly associated with VF were low educational attainment and lack of autonomy regarding medication adherence at transition. CONCLUSIONS HIV-infected AYAs are vulnerable to VF, especially during the transition period. Identification of HIV-infected adolescents at high risk for VF might help to improve treatment success in this group.
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Richter C. Control of the pro-oxidant-dependent calcium release from intact liver mitochondria. Redox Rep 2016; 2:217-21. [DOI: 10.1080/13510002.1996.11747053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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97
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Klein SD, Schweizer M, Richter C. Inhibition of the pyridine nucleotide-linked mitochondrial Ca2+release by 4-hydroxynonenal: the role of thiolate-disulfide conversion. Redox Rep 2016; 2:353-8. [DOI: 10.1080/13510002.1996.11747074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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98
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Wohlrab J, Richter C, Stauder S. Präklinische und klinische Validierung der kutanen Bioverfügbarkeit der hydrophilen Phase einer W/O-Emulsion. J Dtsch Dermatol Ges 2016. [DOI: 10.1111/ddg.12732_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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99
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Stuetzer K, Paessler T, Valentini C, Exner F, Thiele J, Hoelscher T, Krause M, Richter C. SU-F-J-203: Retrospective Assessment of Delivered Proton Dose in Prostate Cancer Patients Based On Daily In-Room CT Imaging. Med Phys 2016. [DOI: 10.1118/1.4956111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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100
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Gevers TJG, Burger D, Schipper-Reintjes E, Kooistra MP, Richter C. Full-dose sofosbuvir and daclatasvir for chronic hepatitis C infection in haemodialysis patients. Neth J Med 2016; 74:225-227. [PMID: 27323683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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