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Strandberg B, Annand JRM, Briscoe W, Feldman G, Fissum K, Hansen K, Isaksson L, Myers L, O’Reilly GV. Threshold π−production on the deuteron. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201613005019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hansen K, Olariaga I. Species limits and relationships within Otidea inferred from multiple gene phylogenies. PERSOONIA 2015; 35:148-65. [PMID: 26823632 PMCID: PMC4713103 DOI: 10.3767/003158515x687993] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Accepted: 02/01/2015] [Indexed: 11/25/2022]
Abstract
The genus Otidea is one of the more conspicuous members of the Pyronemataceae, with high species diversity in hemiboreal and boreal forests. The genus is morphologically coherent and in previous higher-level multi-gene analyses it formed a highly supported monophyletic group. Species delimitation within Otidea is controversial and much confusion has prevailed in the naming of taxa. To provide a phylogenetic hypothesis of Otidea, elucidate species diversity and limits we compiled a four-gene dataset including the nuclear LSU rDNA and three nuclear protein-coding genes (RPB1, RPB2 and EF-1α) for 89 specimens (total 4 877 nucleotides). These were selected from a larger sample of material studied using morphology and 146 ITS (ITS1-5.8S-ITS2) and 168 LSU rDNA sequences to represent the full genetic diversity. Using genealogical concordance phylogenetic species recognition (GCPSR), Bayesian and maximum likelihood analyses of the individual datasets resolved 25 species of Otidea. An additional eight singletons are considered to be distinct species, because they were genetically divergent from their sisters. Sequences of multiple genes were included from 13 holotypes, one neotype and three epitypes. Otidea angusta, O. myosotis and O. papillata f. pallidefurfuracea are nested within O. nannfeldtii, O. leporina and O. tuomikoskii, respectively and are considered synonyms. Otidea cantharella var. minor is shown to be a distinct species. Five new species were discovered: O. oregonensis and O. pseudoleporina for North America; and O. borealis, O. brunneoparva and O. subformicarum for Europe. The analyses of the individual four gene datasets yielded phylogenies that were highly concordant topologically, except for the RPB1 that showed supported conflict for some nodes in Bayesian analysis. Excluding the RPB1 from the combined analyses produced an identical topology to the four-gene phylogeny, but with higher support for several basal nodes and lower support for several shallow nodes. We argue to use the three-gene dataset to retrieve the maximum support for the higher-level relationships in Otidea, but still utilise the signal from the RPB1 for the delimitation and relationships of closely related species. From the four gene regions utilised, EF-1α and RPB1 have the strongest species recognition power, and with higher amplification success EF-1α may serve as the best secondary barcoding locus for Otidea (with ITS being a primary). The phylogeny from the three- and four-gene datasets is fully resolved and strongly supported in all branches but one. Two major clades, as part of six inclusive clades A-F, are identified - and ten subclades within these: A) O. platyspora and O. alutacea subclades, and B) O. papillata, O. leporina, O. tuomikoskii, O. cantharella, O. formicarum, O. unicisa, O. bufonia-onotica and O. concinna subclades. Morphological features in Otidea appear to be fast evolving and prone to shifts, and are poor indicators of higher-level relationships. Nevertheless, a conspicuous spore ornament is a synapomorphy for the O. unicisa subclade (/Otideopsis); all other species in Otidea have smooth or verruculose (in SEM) spores. Exclusively pale to bright yellow apothecia and straight to curved, broadly clavate to distinctly capitate paraphyses are synapomorphies for a restricted O. concinna subclade (/Flavoscypha). The curved to hooked apices of the paraphyses is suggested to be a symplesiomorphic trait for the genus. The reaction of resinous exudates on the outermost excipular cells that coalesce into amber drops in Melzer's reagent is likely an ancestral state for clade B. We estimate that Otidea consists of 47 species worldwide, based on all available information (including morphology, ITS or LSU sequences, and literature descriptions). Three fifths of the species occur in Europe, with 20 species recognised as endemic. At least 14 species occur in North America and 17 in Asia, with eight and ten species considered endemic to each continent, respectively. Our knowledge about Otidea in Asia is still fragmentary and the diversity likely much higher.
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Hansen K. Corrigendum to ‘‘The effective temperature in microcanonical rate constants” [Chem. Phys. Lett. 620 (2015) 43–45]. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.07.050] [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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Dieterich S, Trestrail E, Holt R, Saini S, Pfeiffer I, Kent M, Hansen K. SU-E-T-133: Assessing IMRT Treatment Delivery Accuracy and Consistency On a Varian TrueBeam Using the SunNuclear PerFraction EPID Dosimetry Software. Med Phys 2015. [DOI: 10.1118/1.4924494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Čirgić E, Kjellberg H, Hansen K, Lepp M. Adolescents' experiences of using removable functional appliances. Orthod Craniofac Res 2015; 18:165-74. [DOI: 10.1111/ocr.12093] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2015] [Indexed: 11/30/2022]
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Naber D, Hansen K, Forray C, Baker R, Sapin C, Beillat M, Peters-Strickland T, Nylander A, Hertel P, Andersen HS, Eramo A, Loze J, Potkin S. Aripiprazole Once-monthly is Superior to Paliperidone Palmitate in a Randomized, Head-to-head Clinical Study. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30721-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Thomas R, Schmidt H, Gatchell M, Rosén S, Reinhed P, Löfgren P, Brännholm L, Blom M, Björkhage M, Bäckström E, Alexander J, Leontein S, Hanstorp D, Zettergren H, Kaminska M, Nascimento R, Liljeby L, Källberg A, Simonsson A, Hellberg F, Mannervik S, Larsson M, Geppert W, Rensfelt K, Paál A, Masuda M, Halldén P, Andler G, Stockett M, Chen T, Källersjö G, Weimer J, Hansen K, Hartman H, Cederquist H. DESIREE: Physics with cold stored ion beams. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158401004] [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] Open
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Myers LS, Annand JRM, Brudvik J, Feldman G, Fissum KG, Grießhammer HW, Hansen K, Henshaw SS, Isaksson L, Jebali R, Kovash MA, Lundin M, McGovern JA, Middleton DG, Nathan AM, Phillips DR, Schröder B, Stave SC. Measurement of Compton scattering from the deuteron and an improved extraction of the neutron electromagnetic polarizabilities. PHYSICAL REVIEW LETTERS 2014; 113:262506. [PMID: 25615318 DOI: 10.1103/physrevlett.113.262506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Indexed: 06/04/2023]
Abstract
The electromagnetic polarizabilities of the nucleon are fundamental properties that describe its response to external electric and magnetic fields. They can be extracted from Compton-scattering data-and have been, with good accuracy, in the case of the proton. In contradistinction, information for the neutron requires the use of Compton scattering from nuclear targets. Here, we report a new measurement of elastic photon scattering from deuterium using quasimonoenergetic tagged photons at the MAX IV Laboratory in Lund, Sweden. These first new data in more than a decade effectively double the world data set. Their energy range overlaps with previous experiments and extends it by 20 MeV to higher energies. An analysis using chiral effective field theory with dynamical Δ(1232) degrees of freedom shows the data are consistent with and within the world data set. After demonstrating that the fit is consistent with the Baldin sum rule, extracting values for the isoscalar nucleon polarizabilities, and combining them with a recent result for the proton, we obtain the neutron polarizabilities as αn=[11.55±1.25(stat)±0.2(BSR)±0.8(th)]×10(-4) fm(3) and βn=[3.65∓1.25(stat)±0.2(BSR)∓0.8(th)]×10(-4) fm(3), with χ(2)=45.2 for 44 degrees of freedom.
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Low W, Azmi S, Yee SL, Abdat A, Brignone M, Hansen K, Milea D. Comparative Pharmacoeconomics Studies of Treatment for Major Depressive Disorder in China. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A769. [PMID: 27202828 DOI: 10.1016/j.jval.2014.08.303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Hansen K. Comment on "The dependence of homogeneous nucleation rate on supersaturation" [J. Chem. Phys. 141, 024307 (2014)]. J Chem Phys 2014; 141:157101. [PMID: 25338913 DOI: 10.1063/1.4898083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Park A, Pham T, Craig L, Hansen K, Wild R, Quaas A. Clomiphene citrate (CC) starting dose in intrauterine insemination (IUI) cycles for women under age 35 with unexplained infertility: is higher better? Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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63
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Fabricius M, Sabers A, Hoegenhaven H, Brennum J, Moeller K, Hansen K, Kjaer T. P479: Continuous EEG monitoring in neurointensive care. Organisation and assessment of impact. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50579-2] [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]
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64
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Chansa E, Hansen K, Gustafsson B. An intraosseous blood transfusion in a critically ill child. Afr J Emerg Med 2014. [DOI: 10.1016/j.afjem.2013.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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65
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Ito G, Furukawa T, Tanuma H, Matsumoto J, Shiromaru H, Majima T, Goto M, Azuma T, Hansen K. Cooling dynamics of photoexcited C6(-) and C6H(-). PHYSICAL REVIEW LETTERS 2014; 112:183001. [PMID: 24856693 DOI: 10.1103/physrevlett.112.183001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Indexed: 05/16/2023]
Abstract
We report conclusive evidence of an efficient cooling mechanism via the electronic radiative transitions of hot small molecular anions isolated in vacuum. We stored C6(-) and C6H(-) in an ion storage ring and observed laser-induced electron detachment with delays up to several milliseconds. The terminal hydrogen atom caused a drastic change in the decay profiles. The decay of photoexcited C6H(-) is slow and nonexponential, which can be explained by depletion cooling, whereas that for C6(-) occurs extremely fast, on a time scale below 0.1 ms and can only be explained by electronic radiative cooling via low-lying electronic excited states.
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Najafian K, Pettersson MS, Dynefors B, Shiromaru H, Matsumoto J, Tanuma H, Furukawa T, Azuma T, Hansen K. Radiative cooling of C7−. J Chem Phys 2014; 140:104311. [DOI: 10.1063/1.4867499] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pedersen EG, Pottegård A, Hallas J, Friis S, Hansen K, Jensen PEH, Gaist D. Myasthenia and risk of cancer: a population-based case-control study. Eur J Neurol 2014; 21:773-8. [DOI: 10.1111/ene.12383] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 01/10/2014] [Indexed: 01/22/2023]
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68
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Laugesen E, Høyem P, Knudsen S, Hansen K, Christiansen J, Hansen T, Løgstrup P. P9.3 LOWER SUBENDOCARDIAL VIABILITY RATIO IN DIABETIC WOMEN–CONTRIBUTING TO THE ABROGATED CARDIOPROTECTIVE EFFECT OF FEMALE GENDER IN DIABETES? Artery Res 2014. [DOI: 10.1016/j.artres.2014.09.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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69
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Pedersen EG, Pottegård A, Hallas J, Friis S, Hansen K, Jensen PEH, Gaist D. Risk of non-melanoma skin cancer in myasthenia patients treated with azathioprine. Eur J Neurol 2013; 21:454-8. [DOI: 10.1111/ene.12329] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 11/18/2013] [Indexed: 02/03/2023]
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Goto M, Sundén AEK, Shiromaru H, Matsumoto J, Tanuma H, Azuma T, Hansen K. Direct observation of internal energy distributions of C5−. J Chem Phys 2013; 139:054306. [DOI: 10.1063/1.4817196] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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71
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Schmidt HT, Thomas RD, Gatchell M, Rosén S, Reinhed P, Löfgren P, Brännholm L, Blom M, Björkhage M, Bäckström E, Alexander JD, Leontein S, Hanstorp D, Zettergren H, Liljeby L, Källberg A, Simonsson A, Hellberg F, Mannervik S, Larsson M, Geppert WD, Rensfelt KG, Danared H, Paál A, Masuda M, Halldén P, Andler G, Stockett MH, Chen T, Källersjö G, Weimer J, Hansen K, Hartman H, Cederquist H. First storage of ion beams in the Double Electrostatic Ion-Ring Experiment: DESIREE. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:055115. [PMID: 23742597 DOI: 10.1063/1.4807702] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report on the first storage of ion beams in the Double ElectroStatic Ion Ring ExpEriment, DESIREE, at Stockholm University. We have produced beams of atomic carbon anions and small carbon anion molecules (C(n)(-), n = 1, 2, 3, 4) in a sputter ion source. The ion beams were accelerated to 10 keV kinetic energy and stored in an electrostatic ion storage ring enclosed in a vacuum chamber at 13 K. For 10 keV C2 (-) molecular anions we measure the residual-gas limited beam storage lifetime to be 448 s ± 18 s with two independent detector systems. Using the measured storage lifetimes we estimate that the residual gas pressure is in the 10(-14) mbar range. When high current ion beams are injected, the number of stored particles does not follow a single exponential decay law as would be expected for stored particles lost solely due to electron detachment in collision with the residual-gas. Instead, we observe a faster initial decay rate, which we ascribe to the effect of the space charge of the ion beam on the storage capacity.
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Pedersen EG, Pottegård A, Hallas J, Friis S, Hansen K, Jensen PEH, Gaist D. Use of azathioprine for non-thymoma myasthenia and risk of cancer: a nationwide case-control study in Denmark. Eur J Neurol 2013; 20:942-8. [DOI: 10.1111/ene.12108] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 12/19/2012] [Indexed: 01/10/2023]
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Kondziella D, Cortsen M, Eskesen V, Hansen K, Holtmannspötter M, Højgaard J, Stavngaard T, Søndergaard H, Wagner A, Welling KL. Update on acute endovascular and surgical stroke treatment. Acta Neurol Scand 2013; 127:1-9. [PMID: 22881403 DOI: 10.1111/j.1600-0404.2012.01702.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2012] [Indexed: 02/02/2023]
Abstract
Emergency stroke care has become a natural part of the emerging discipline of neurocritical care and demands close cooperation between the neurologist and neurointerventionists, neurosurgeons, and anesthesiologists. Endovascular treatment (EVT), including intra-arterial thrombolysis, mechanical thrombectomy and angioplasty/stenting, is under rapid development. Although EVT has yet to be shown in randomized controlled trials to improve clinical outcome compared to intravenous thrombolysis, it is far better in achieving recanalization of occluded large cerebral vessels, which is crucial for rescuing the penumbra. Moreover, decompressive craniectomy is now a well-established treatment option for malignant middle cerebral artery infarction and cerebellar stroke. Using a case-based approach, this article reviews recent achievements in advanced treatment options for patients with acute ischemic stroke.
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Lam P, Hansen K, Keighley G, Briggs L, Murrell G. A randomised doubled blinded clinical control trial evaluating the effectiveness of daily vibration followed arthroscopic rotator cuff repair. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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75
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Becker F, Borgmann M, Bertram J, Hansen K, Koch M, Hannus S. 179 Bringing Light into Antibody Binding Characteristics in Crude Extracts by Means of FCCS. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71977-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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76
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Hansen K, Kjalke M, Rasmussen PB, Kongerslev L, Ezban M. Proteolytic cleavage of recombinant two-chain factor VIII during cell culture production is mediated by protease(s) from lysed cells. The use of pulse labelling directly in production medium. Cytotechnology 2012; 24:227-34. [PMID: 22358766 DOI: 10.1023/a:1007988713571] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
During the production by mammalian cells of recombinant factor VIII from which the B domain was deleted (rFVIII), proteolytic cleavages in the C-terminal part of the heavy chain were observed (Kjalke et al., 1995). By radioactive pulse labelling it was investigated whether the cleavages took place inside the cells during protein synthesis or after release in the medium. The rFVIII-producing CHO (Chinese hamster ovary) cells were cultured in the presence of (35)S-methionine and then the cell lysate and the conditioned media were immunoprecipitated and analyzed by electrophoresis. By pulse labelling and chasing for various time periods, it was shown that the cleavages only took place after secretion of the protein from the cells. Adding cell lysate to uncleaved rFVIII caused cleavage of the heavy chain, as seen by loss of binding to a monoclonal antibody specific for intact rFVIII, indicating that the cleavage was performed by proteinase(s) released from the lysed cells. By incubating intact rFVIII with the multicatalytic proteinase (proteasome) present in cytoplasm and nucleus of eukaryotic cells, loss of binding to the monoclonal antibody was observed. This indicates that the multicatalytic proteinase, released from lysed rFVIII producing cells, could be responsible for the cleavage of rFVIII. Among several protease inhibitors tested, only bacitracin was found to diminish the extent of cleavage. Phosphatidylserine also protected rFVIII against cleavage, probably by binding to rFVIII.
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Lin J, Hansen K, Beriwal S, Kelley J, Krivak T, Edwards R, Richard S, Olawaiye A, Zorn K, Sukumvanich P. Comparison of primary surgery versus definitive radiation for treatment of early endometrial cancer in the elderly population. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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78
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Locher LF, Rehage J, Khraim N, Meyer U, Dänicke S, Hansen K, Huber K. Lipolysis in early lactation is associated with an increase in phosphorylation of adenosine monophosphate-activated protein kinase (AMPK)α1 in adipose tissue of dairy cows. J Dairy Sci 2012; 95:2497-504. [PMID: 22541476 DOI: 10.3168/jds.2011-4830] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Accepted: 12/22/2011] [Indexed: 11/19/2022]
Abstract
Adenosine monophosphate-activated protein kinase (AMPK)α1 is activated in the context of triacylglycerol hydrolysis in adipose tissue in monogastric animals. This study describes AMPKα1 protein expression and the occurrence of its phosphorylated form (pAMPKα1) in different adipose tissue depots as influenced by time and postpartum diet in dairy cows. Biopsy samples were obtained from subcutaneous (SCAT) and retroperitoneal (RPAT) adipose tissues of 20 Holstein cows 21 d prepartum (ap) and 1 and 21 d postpartum (pp). After d 1 pp, cows were randomly assigned to 2 groups (n=10) and fed different amounts of concentrate until the third biopsy sampling at 21 d pp. Protein expression of AMPK and the extent of its phosphorylation in adipose tissue were measured by semiquantitative Western blotting. Results were not influenced by postpartum feeding. Therefore, both groups were pooled and data analyzed together. Expression of AMPKα1 in SCAT showed a decrease over time, resulting in lower expression at 1d pp compared with 21 d ap. Expression in RPAT was maintained over time. Phosphorylation increased in SCAT, showing a greater extent of phosphorylation at d 21 pp compared with 21 d ap. In RPAT, this could be seen as a trend. The proportion of pAMPKα1 to AMPKα1 significantly increased over time in both tissues. In the first adipose tissue sampling (21 d ap), AMPKα1 protein expression and extent of phosphorylation were significantly higher in RPAT than in SCAT. Lipolysis in early lactation of dairy cows was associated with an increase in phosphorylation of AMPKα1 and ratio of pAMPKα1 to AMPKα1 in bovine adipose tissues. This indicates that AMPKα1 may be involved in the regulation of energy metabolism of bovine adipose tissues.
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Katz-Jaffe M, McReynolds S, Stevens J, Dzieciatkowska M, Hansen K, Schoolcraft W. Protein secretome profiles reliably distinguish embryonic stages of development and predict successful IVF outcome. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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80
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Johansson JO, Fedor J, Goto M, Kjellberg M, Stenfalk J, Henderson GG, Campbell EEB, Hansen K. Anisotropic hot electron emission from fullerenes. J Chem Phys 2012; 136:164301. [PMID: 22559476 DOI: 10.1063/1.4704828] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Photoelectron spectra for fullerenes C(60) and C(70) ionized using 800 nm laser pulses with pulse durations from 120 to 1000 fs show thermal electron kinetic energy distributions but they also exhibit angular anisotropy with respect to the laser light polarization. The effective temperature of electrons, measured along the laser polarization direction, is significantly higher than in the perpendicular direction. We explain this observation by considering that the emission of the thermal electrons is uncorrelated with the phase of the laser pulse, unlike directly ionized electrons, and, depending on the time of emission, they may experience an additional "kick" from the vector potential of the laser field when they are emitted from the molecule.
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Pedersen EG, Hallas J, Hansen K, Jensen PEH, Gaist D. Late-onset myasthenia not on the increase: a nationwide register study in Denmark, 1996-2009. Eur J Neurol 2012; 20:309-14. [DOI: 10.1111/j.1468-1331.2012.03850.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 07/05/2012] [Indexed: 11/29/2022]
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82
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Hansen K, Lin J, Beriwal S, Lesnock J, Sukumvanich P, Richard S, Olawaiye A, Kelley J, Zorn K, Krivak T. Impact of Postoperative Treatment on Stage IIIC Endometrial Cancer: A Comparison of Single Modality to Multimodality Therapy. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.01.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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83
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Kurtzhals C, Hansen K, Kondziella D. Spontaneous cerebrospinal fluid leak associated with idiopathic intracranial hypertension. Neurol India 2012; 59:946-7. [PMID: 22234235 DOI: 10.4103/0028-3886.91403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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84
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Hansen K, Lin J, Beriwal S, Lesnock J, Sukumvanich P, Richard S, Olawaiye A, Kelley J, Zorn K, Krivak T. Impact of postoperative treatment on stage IIIC endometrial cancer: A comparison of single modality to multimodality therapy. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.378] [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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85
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Hurria A, Synold T, Blanchard S, Wong C, Mortimer J, Luu T, Chung C, Ramani R, Katheria V, Hansen K, Jayani R, Brown J, Williams B, Rotter A, Somlo G. P5-19-05: Age-Related Changes in the Pharmacokinetics (pK), Response, and Toxicity of Weekly nab-Paclitaxel in Patients with Metastatic Breast Cancer (MBC). Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p5-19-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Although cancer is a disease of aging, few studies have evaluated the association between patient age and the pK or pharmacodynamics (pD) of cancer therapeutics. The goals of this study were 1) to evaluate the age-related changes in the pK and pD of weekly nab-paclitaxel in patients with MBC; 2) to determine response rate; and 3) to explore the relationship of age with pK and pD parameters (i.e., dose reductions, dose delays and grade ≥ 3 toxicities). Patients and Methods: Forty patients with MBC, receiving 1st or 2nd line chemotherapy, entered an IRB approved protocol to evaluate the age-related changes in the pK of weekly nab-paclitaxel administered at 100 mg/m2 IV for 3 weeks followed by a 1-week break. Patients were accrued from 4 age strata <50, 50–60, 60–70, and >70 years of age. Blood samples were collected for pK analysis with the first dose of nab-paclitaxel. Response was assessed every 2 cycles. Toxicity was graded using the NCI Common Toxicity Criteria for Adverse Events (v 3.0) and was adjudicated as attributable to nab-paclitaxel if it was possibly, probably, or definitely related. Linear regression analysis was used to examine the strength of the relationship between patient age and natural logarithm of 24 hour area under the curve (AUC). Two-sided two-sample t-tests were used to assess if there was a difference in mean age based on the presence of pD variables (i.e., dose reductions, dose delays and grade ≥ 3 toxicities). The significance level was set to 0.05.
Results: Of the 40 patients who entered the study, 39 (98%) were evaluable with a mean age of 60 (SD=13.4; min=30; max=81). Patients were accrued in the following age cohorts: <50 (n= 10; 26%), 50–60 (n= 5; 13%), 60–70 (n= 15; 38%), and >70 (n= 9; 23%) years of age. The median number of courses completed was 4 (min=1, max=21). The response rate was: 0% (n=0) CR, 31% (n=12) PR, 38% (n=15) SD. Grade 3 toxicity was experienced by 26% (n=10). We observed 8% (n=3) grade 3 hematological toxicities [neutrophils (n=1; 3%), leukocytes (n=2; 5%)] and 18% (n=7) grade 3 non-hematological toxicities [nausea and hypophosphatemia (n=1; 3%), diarrhea and infection without neutropenia (n=1; 3%), fatigue (n=2; 5%), hyponatremia (n=1; 3%), and infections without neutropenia (n=2; 5%)]. There were no cases of grade 4 or 5 toxicity. Grade 2 sensory neuropathy was experienced by 8% (n=3; no cases in the 70+ age cohort). Dose reductions or course delays were experienced by 62% (n=24) and 21% (n=8), respectively. There was a borderline significant positive association between age and natural logarithm of total nab-paclitaxel 24 hour AUC (coef=.01; se=.006; p=0.055; n=36). There were no differences in the mean ages based on the presence of grade 3 or higher toxicity (p =0.75), need for dose reductions (p=0.48), or need for dose delays (p=0.61).
Discussion: There is a borderline statistically significant relationship between age and 24 hour AUC but no differences in mean age based on pD variables (i.e., dose reductions, dose delays and grade ≥ 3 toxicities) were identified. The treatment is well-tolerated across all age groups.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P5-19-05.
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86
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Schedin PJ, Lyons TR, O'Brien J, Callihan E, Russell T, Martinson H, Tan AC, Hansen K, Keely PJ, Borges V. BS3-2: Mammary Stroma as an NSAID Target; Implications for Pregnancy-Associated Breast Cancer. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-bs3-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Utilizing a young women's breast cancer cohort from the University of Colorado Cancer Center, we show that women diagnosed as late as five-ten years postpartum have worse prognosis than nulliparous women or women diagnosed during pregnancy, and represent ∼50% of all young women's breast cancer patients. We propose that breast involution following pregnancy accounts for this poor prognosis. Characterization of involution identifies tissue remodeling programs that share similarities with microenvironments known to promote metastasis. Using SHG imaging, we find fibrillar collagen bundles with radially-aligned fibers similar to those observed in invasive tumors deposited in the involuting gland. By immunohistochemistry and FACS we find macrophages with an M2-polarization-like profile similar to tumor-associated macrophages at abundant levels during involution. In three independent mouse models for postpartum breast cancer, we isolate postpartum mammary gland involution as a driving force for cancer progression. Mammary tumors arising in the mouse involuting microenvironment express COX-2 and isolated tumor cells are motile and invasive in a collagen-1/COX-2 dependent manner. Targeting involution-macrophages as likely mediators of tumor promotion was accomplished using a previously described mouse transgenic model. Macrophage depletion during involution had catastrophic effects on normal mammary gland involution. Conversely, inhibition of COX-2 with celecoxib, aspirin or ibuprofen did not interfere with postpartum lobular regression. COX-2 inhibition did decrease tumor growth, local tumor cell dispersion and lung metastasis. NSAID treatment also suppressed collagen and tenascin-C deposition in the involuting microenvironment, suggesting that modulation of extracellular matrix proteins may be a novel mechanism by which NSAIDs exhibit chemopreventive activity. Our studies indicate two distinct roles for COX-2 in the postpartum setting. COX-2 activity within the tumor cell is required for invasiveness and COX-2 activity in the host promotes collagen fibrillogenesis. Several correlative observations implicate the collagen/COX-2 pathway in postpartum breast cancer in women: involuting breast tissue has increased collagen with radially aligned fibers, analysis of 11 publically available microarray data sets shows high COL1A and COX-2 independently correlate with decreased relapse free-survival in young breast cancer patients, and COX-2 protein is observed in DCIS lesions in postpartum cases at higher levels than nulliparous cases.
In summary, our studies suggest further research into COX-2 inhibitor use might provide a novel strategy to improve the prognosis of young women should they be diagnosed with postpartum breast cancer. The question of whether an NSAID based intervention study could be aimed at recently pregnant women at high risk for breast cancer also remains to be determined, but is an extremely desirable objective given that the ∼ 6 million pregnancies in the US per year.
Supported by grants from DoD Synergistic Idea Awards BC060531 & BC10400/001, Komen Foundation KG090629, DoD Idea Award BC074970 to PJK, ACS New England Division Postdoctoral Fellowship Spin Odyssey PF-08-257-01-CSM to TRL and DoD Predoctoral Grants BC073482 to JO and BC100910 to HM.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr BS3-2.
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Goto M, Hansen K. Competitive ionization processes of anthracene excited with a femtosecond pulse in the multi-photon ionization regime. J Chem Phys 2011; 135:214310. [DOI: 10.1063/1.3663618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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88
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Hansen K, Lam P, Keighley G, Murrell G. Effectiveness of vibration on pain following rotator cuff repair. J Sci Med Sport 2011. [DOI: 10.1016/j.jsams.2011.11.066] [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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89
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Keighley G, Lam P, Hansen K, Murrell G. A randomized double blind clinical trial evaluating the effects of daily controlled vibration on the strength and range of movement of a shoulder following rotator cuff repair. J Sci Med Sport 2011. [DOI: 10.1016/j.jsams.2011.11.068] [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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90
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Craig L, Peck J, Bullock S, Burks H, Storer B, Hansen K. How large is too large: association of obesity with fecundability in women undergoing intrauterine insemination. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.345] [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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91
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Kondziella D, Hansen K. Cerebral hyperperfusion syndrome remains under-recognized. J Neurol 2011; 259:384-5. [PMID: 21786150 DOI: 10.1007/s00415-011-6182-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Accepted: 07/11/2011] [Indexed: 11/25/2022]
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92
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Klepin HD, Gajra A, Hardt M, Tew WP, Mohile SG, Owusu C, Gross CP, Lichtman SM, Ramani R, Katheria V, Brown J, Jayani R, Hansen K, Togawa K, Klapper S, Wong FL, Hurria A. Predictors of primary dose reduction (PDR) among patients (pts) age 65 and older receiving adjuvant chemotherapy (chemo). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.9003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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93
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Gajra A, Hardt M, Tew WP, Mohile SG, Owusu C, Klepin HD, Gross CP, Lichtman SM, Ramani R, Brown J, Katheria V, Jayani R, Hansen K, Togawa K, Klapper S, Hurria A. Primary dose reduction (PDR) of chemotherapy (chemo) in patients (Pts) older than age 65 with advanced cancer (Ca) and toxicity outcomes. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.9037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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94
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Granlund CM, Lith A, Molander B, Grondahl K, Hansen K, Ekestubbe A. Frequency of errors and pathology in panoramic images of young orthodontic patients. Eur J Orthod 2011; 34:452-7. [DOI: 10.1093/ejo/cjr035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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95
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Lindskog-Stokland B, Hansen K, Ekestubbe A, Wennstrom JL. Orthodontic tooth movement into edentulous ridge areas--a case series. Eur J Orthod 2011; 35:277-85. [DOI: 10.1093/ejo/cjr029] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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96
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Storer B, Vij R, Peck J, Bullock S, Hansen K, Craig L. Relationship Between Semen Regurgitation and Pregnancy Rates with Intrauterine Insemination. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.01.119] [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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97
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Vij R, Storer B, Peck J, Zavy M, Hansen K, Craig L. Does the Presence of Agglutination or White Blood Cells in the Semen Preparation for Intrauterine Insemination Affect the Couple's Chance of Conceiving? Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.01.118] [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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98
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Becker F, Hannus S, Hansen K. 356 An innovative platform technology accelerates drug screening. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72063-2] [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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99
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McReynolds S, Kiemele L, Stevens J, Hansen K, Schoolcraft W, Katz-Jaffe M. Non-invasive blastocyst secretome analysis reflects comprehensive chromosome aneuploidy. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.133] [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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100
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Kjellberg M, Bulgakov AV, Goto M, Johansson O, Hansen K. Femtosecond electron spectroscopy of coronene, benzo[GHI]perylene, and anthracene. J Chem Phys 2010; 133:074308. [DOI: 10.1063/1.3466925] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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