76
|
Nassar A, Cohen C, Agersborg SS, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT. A multisite performance study comparing the reading of immunohistochemical slides on a computer monitor with conventional manual microscopy for estrogen and progesterone receptor analysis. Am J Clin Pathol 2011; 135:461-7. [PMID: 21350103 DOI: 10.1309/ajcp4vfka5fcmzna] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
A multisite study was conducted to assess the performance of the Aperio digital pathology system (Aperio Technologies, Vista, CA) for reading estrogen receptor (ER) and progesterone receptor (PR) slides on a computer monitor. A total of 520 formalin-fixed breast tissue specimens were assayed at 3 clinical sites for ER and PR (260 each). Percentage and average staining intensity of positive nuclei were assessed. At each site, 3 pathologists performed a blinded reading of the glass slides using their microscopes initially and later using digital images on a computer monitor. Comparable percentages of agreements were obtained for manual microscopy (MM) and manual digital slide reading (MDR) (ER, percentage of positive nuclei with cutoffs: MM, 91.3%-99.0%/MDR, 91.3%-100.0%; PR, percentage of positive nuclei with cutoffs: MM, 83.8%-99.0%/MDR, 76.3%-100.0%). Reading ER and PR slides on a computer monitor using the Aperio digital pathology system is equivalent to reading the slides with a conventional light microscope.
Collapse
|
77
|
Gerlach M, Kuhn W, Müller T, Winkel R, Lange H, Przuntek H. Increased GABA synthesis in skin fibroblasts of patients with Huntington's disease: a possible role of glutamic acid decarboxylase? Eur J Neurol 2011. [DOI: 10.1111/j.1468-1331.1996.tb00251.x] [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]
|
78
|
Rumpf S, Bohlen S, Bechtel N, Koch R, Lange H, Reilmann R. F15 Balance control in Huntington's disease: is the berg balance scale a useful test for clinical and quantitative motor assessment? Journal of Neurology, Neurosurgery and Psychiatry 2010. [DOI: 10.1136/jnnp.2010.222620.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
79
|
Rumpf S, Bohlen S, Bechtel N, Koch R, Lange H, Reilmann R. F16 Postural assessment in dynamic posturography—a useful motor phenotype measure for presymptomatic and manifest Huntington's disease? Journal of Neurology, Neurosurgery and Psychiatry 2010. [DOI: 10.1136/jnnp.2010.222620.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
80
|
Lange H. K02 Usefulness of the Unified Huntington's Disease Rating Scales and scores in the rehabilitation of patients with Huntington's disease. Journal of Neurology, Neurosurgery and Psychiatry 2010. [DOI: 10.1136/jnnp.2010.222695.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
81
|
Lange H, Krüger H, Dammann A, Schwarzer K, Müller U. Wirkstoffgehalte von Medizinaldrogen nach mechanischen Sattdampfentkeimungen. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
82
|
Mahecha MD, Reichstein M, Carvalhais N, Lasslop G, Lange H, Seneviratne SI, Vargas R, Ammann C, Arain MA, Cescatti A, Janssens IA, Migliavacca M, Montagnani L, Richardson AD. Global convergence in the temperature sensitivity of respiration at ecosystem level. Science 2010; 329:838-40. [PMID: 20603495 DOI: 10.1126/science.1189587] [Citation(s) in RCA: 369] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The respiratory release of carbon dioxide (CO(2)) from the land surface is a major flux in the global carbon cycle, antipodal to photosynthetic CO(2) uptake. Understanding the sensitivity of respiratory processes to temperature is central for quantifying the climate-carbon cycle feedback. We approximated the sensitivity of terrestrial ecosystem respiration to air temperature (Q(10)) across 60 FLUXNET sites with the use of a methodology that circumvents confounding effects. Contrary to previous findings, our results suggest that Q(10) is independent of mean annual temperature, does not differ among biomes, and is confined to values around 1.4 +/- 0.1. The strong relation between photosynthesis and respiration, by contrast, is highly variable among sites. The results may partly explain a less pronounced climate-carbon cycle feedback than suggested by current carbon cycle climate models.
Collapse
|
83
|
|
84
|
KurzendC.-W CP, Schwuger MJ, Lange H. Behaviour of Mixtures of Different Surfactant Types in Solution and on Interfaces. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19780820953] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
85
|
Mahecha MD, Reichstein M, Jung M, Seneviratne SI, Zaehle S, Beer C, Braakhekke MC, Carvalhais N, Lange H, Le Maire G, Moors E. Comparing observations and process-based simulations of biosphere-atmosphere exchanges on multiple timescales. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jg001016] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
86
|
Rhyu IJ, Bytheway JA, Kohler SJ, Lange H, Lee KJ, Boklewski J, McCormick K, Williams NI, Stanton GB, Greenough WT, Cameron JL. Effects of aerobic exercise training on cognitive function and cortical vascularity in monkeys. Neuroscience 2010; 167:1239-48. [PMID: 20211699 DOI: 10.1016/j.neuroscience.2010.03.003] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 02/27/2010] [Accepted: 03/02/2010] [Indexed: 10/19/2022]
Abstract
This study examined whether regular exercise training, at a level that would be recommended for middle-aged people interested in improving fitness could lead to improved cognitive performance and increased blood flow to the brain in another primate species. Adult female cynomolgus monkeys were trained to run on treadmills for 1 h a day, 5 days a week, for a 5 month period (n=16; 1.9+/-0.4 miles/day). A sedentary control group sat daily on immobile treadmills (n=8). Half of the runners had an additional sedentary period for 3 months at the end of the exercise period (n=8). In all groups, half of the monkeys were middle-aged (10-12 years old) and half were more mature (15-17 years old). Starting the fifth week of exercise training, monkeys underwent cognitive testing using the Wisconsin General Testing Apparatus (WGTA). Regardless of age, the exercising group learned to use the WGTA significantly faster (4.6+/-3.4 days) compared to controls (8.3+/-4.8 days; P=0.05). At the end of 5 months of running monkeys showed increased fitness, and the vascular volume fraction in the motor cortex in mature adult running monkeys was increased significantly compared to controls (P=0.029). However, increased vascular volume did not remain apparent after a 3-month sedentary period. These findings indicate that the level of exercise associated with improved fitness in middle-aged humans is sufficient to increase both the rate of learning and blood flow to the cerebral cortex, at least during the period of regular exercise.
Collapse
|
87
|
Bystrzejewski M, Huczko A, Lange H, Gemming T, Büchner B, Rümmeli MH. Dispersion and diameter separation of multi-wall carbon nanotubes in aqueous solutions. J Colloid Interface Sci 2010; 345:138-42. [PMID: 20171648 DOI: 10.1016/j.jcis.2010.01.081] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Revised: 01/15/2010] [Accepted: 01/25/2010] [Indexed: 11/17/2022]
Abstract
Comparative studies on dispersing of multi-wall carbon nanotubes (CNTs) using two anionic surfactants (sodium dodecyl sulphate, SDS, and sodium dodecyl benzenosulfonate, SDBS) are presented. The studies were conducted on the surfactant concentrations that were close to the critical micelle concentration (CMC). The stability of CNTs suspensions obtained for surfactant solutions at concentrations lower than the CMC was investigated. It was also found that the surfactant structure has an influence on the diameter distribution of dispersed CNTs.
Collapse
|
88
|
Tanasa RI, Trad A, Lange H, Grötzinger J, Lemke H. Allergen IgE-isotype-specific suppression by maternally derived monoclonal anti-IgG-idiotype. Allergy 2010; 65:16-23. [PMID: 19624555 DOI: 10.1111/j.1398-9995.2009.02104.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND The dramatic increase of IgE-mediated allergic diseases in western countries demonstrates the urgent need for new therapeutic or prophylactic approaches. In mice, a prophylactic long-lasting allergen-specific suppression of IgE responsiveness is induced by maternal IgG antibodies to allergens like ovalbumin, phospholipase A(2) (bvPLA(2)) or ovomucoid. As neonatal application or maternally derived pathogen-reactive antibodies (idiotypes) as well as corresponding anti-idiotypes can induce anti-microbial protection, we probed the transgenerational IgE-suppressive mechanism with a syngeneic monoclonal anti-idiotypic antibody. METHODS The monoclonal bee-venom-phospholipase A(2) (bvPLA(2))-reactive IgG antibody MS613 (idiotype) or the corresponding syngeneic anti-idiotype II/2-19 were injected during the first 2 days postpartum to the dams. Immunization of offspring with minute doses of IgE-inducing bvPLA(2) was started at an adult age of 3(1/2) months. RESULTS The postnatal transfer of the anti-bvPLA(2) idiotype MS613 or the corresponding anti-idiotype II/2-19 induced long-lasting allergen-specific IgE suppression in a dose-dependent manner, while the IgG response to the allergen developed normally. Quantitatively, the anti-idiotype was more effective than idiotype. Molecular modeling of the idiotype-anti-idiotype complex and its comparison with the bvPLA(2) structure revealed that the anti-idiotype does not mimic bvPLA(2) epitopes and thus can not be regarded as an internal image antibody and, consequently, does not function as a surrogate antigen. CONCLUSIONS Idiotypic network reactivity is at least one major factor for induction of transgenerational IgE suppression by maternal IgG antibodies. If applicable to humans, these data suggest the possibility of a prophylactic and possibly therapeutic treatment of IgE-mediated allergic diseases with anti-idiotypic antibodies.
Collapse
|
89
|
Lange H, Artemyev M, Woggon U, Thomsen C. Geometry dependence of the phonon modes in CdSe nanorods. NANOTECHNOLOGY 2009; 20:045705. [PMID: 19417331 DOI: 10.1088/0957-4484/20/4/045705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We investigated the geometry dependence of the first-order Raman scattering band of CdSe nanorods experimentally. The band has an asymmetric shape and its position and exact line shape depend on the nanorod diameter and aspect ratio. The band consists of contributions from the longitudinal optical phonon and surface optical phonon modes. While the position of the longitudinal optical phonon related band is purely diameter dependent, the position of the surface optical phonon band depends on the nanorod's aspect ratio. This can be explained by the influence of phonon confinement and a model for surface optical phonons in nanorods.
Collapse
|
90
|
Erk C, Martin Caba S, Lange H, Werner S, Thomsen C, Steinhart M, Berger A, Schlecht S. Thin-walled Er3+:Y2O3 nanotubes showing up-converted fluorescence. Phys Chem Chem Phys 2009; 11:3623-7. [DOI: 10.1039/b821304f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
91
|
Reissberg S, Bock A, Reiter D, Gieshammer T, Lange H. 169. Multimodal brain tumour diagnostics for the individual planning of neuro-surgical interventions in the area of eloquent brain areas – Diagnostic possibilities by means of modern MRI devices (1.5T). Clin Neurophysiol 2009. [DOI: 10.1016/j.clinph.2008.07.167] [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]
|
92
|
Lange H, Mohr M, Artemyev M, Woggon U, Thomsen C. Direct observation of the radial breathing mode in CdSe nanorods. NANO LETTERS 2008; 8:4614-4617. [PMID: 19367936 DOI: 10.1021/nl803134t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We experimentally confirm the existence of the radial breathing mode in CdSe nanorods by Raman spectroscopy, which was deduced from ab initio calculations of the vibrational properties of bare CdSe nanowires and CdSe/ZnS core-shell nanowires. We calculated the modes' frequency for various diameters and measured a set of bare CdSe nanorods and CdSe/ZnS core-shell nanorods to determine the diameter dependence of the modes' frequency. The frequency of this mode is strongly diameter dependent and it can be used to estimate the nanorod diameter from a Raman measurement alone.
Collapse
|
93
|
Bystrzejewski M, Rümmeli MH, Lange H, Huczko A, Baranowski P, Gemming T, Pichler T. Single-walled carbon nanotubes synthesis: a direct comparison of laser ablation and carbon arc routes. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2008; 8:6178-6186. [PMID: 19198361 DOI: 10.1166/jnn.2008.sw05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Carbon arc and chemical vapor deposition are at present the most efficient methods for mass production of single-walled carbon nanotubes. However, laser ablation is renowned for high quality nanotubes with narrow diameter distributions and hence is also of great interest. The aim of this work was to compare both the carbon arc and laser ablation techniques with respect to the quality--and relative yield of the produced SWCNTs. For this comparative study we used Fe as the catalyst, which is known not to be very active in laser ablation. However, we show this is not the case when H2 is included in the reaction. The reactions for both synthesis routes were carried out in a N2-H2 (95-5% vol.) atmosphere. The same homogenous carbon rods with different iron contents, between 1 and 5 at.% were used as the carbon feedstock and catalyst supply in both synthesis routes. Additionally, two types of carbon rods containing 1 at.% Fe with different graphitization degrees were also investigated. In the arc-discharge case, the low-graphitized electrode produced a web-like product rich in SWCNTs, while the high-graphitized carbon rods yielded soot containing carbon-encapsulated iron nanocrystallites, amorphous carbon nanoparticles, and surprisingly a small fraction of SWCNTs. With laser ablation synthesis, the Fe content and the reactor temperature significantly influenced the SWCNTs yield. Carbon arc plasma diagnostics were also performed. By using optical emission and Absorption spectroscopy the plasma temperature, C2 and CN radical content in the arc zone were determined.
Collapse
|
94
|
Rumpf S, Beckmann H, Bohlen S, Bechtel N, Kraus P, Lange H, Reilmann R. Impairments of postural control in patient's with Huntington's disease while sitting – a new motor phenotype biomarker? AKTUELLE NEUROLOGIE 2008. [DOI: 10.1055/s-0028-1086866] [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]
|
95
|
Ladwig KH, Lederbogen F, Völler H, Albus C, Herrmann-Lingen C, Jordan J, Köllner V, Jünger J, Lange H, Fritzsche K. Positionspapier zur Bedeutung von psychosozialen Faktoren in der Kardiologie. KARDIOLOGE 2008. [DOI: 10.1007/s12181-008-0102-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
96
|
Dathe G, Lange H. Das Duct Bellini-Karzinom. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1058275] [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]
|
97
|
Burr W, Lange H, Penin H, Platte M. Aspekte der Ausbreitung und Hemmung epileptischer Prozesse, Befunde mit dem Kindling-Modell an der Katze. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060999] [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]
|
98
|
Arendt G, Heinrich K, Tegeler J, Wöller W, Quadbeck H, Klieser E, Lange H, Bremberger R. Clinical Side-Effects under Fluperlapine Therapy. PHARMACOPSYCHIATRY 2008. [DOI: 10.1055/s-2007-1017318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
99
|
Reissberg S, Bock A, Reiter D, Gieshammer T, Lange H. Multimodal brain tumour diagnostics for the individual planning of neuro-surgical interventions in the area of eloquent brain areas – diagnostic possibilities by means of modern MRI devices (1,5 T). KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1072963] [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]
|
100
|
Conrad B, Larsen R, Rathgeber J, Lange H, Stüber H, Crozier T. Propofol-Infusion zur Sedierung bei Regionalanästhesien. Anasthesiol Intensivmed Notfallmed Schmerzther 2008. [DOI: 10.1055/s-2007-1001046] [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]
|