76
|
Ideström K, Cantell K, Killander D, Nilsson K, Strander H, Willems J. Interferon therapy in multiple myeloma. ACTA MEDICA SCANDINAVICA 2009; 205:149-54. [PMID: 106625 DOI: 10.1111/j.0954-6820.1979.tb06022.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A woman with multiple myeloma relapsed after 6 years of satisfactory tumor control with melphalan therapy. When progression then occurred, she was given exogenous human leukocyte interferon, 3 x 10(6) reference units twice daily i.m., as the sole therapy. Side-effects of the interferon therapy consisted of fever reactions and thrombocytopenia. One month after the initiation of interferon therapy there was 1) improvement of general health with less pain and tiredness, 2) reduction of the M-component, IgG-lambda, in the serum, and 3) a reduced plasma cell concentration in the bone marrow. After 5 months of interferon therapy tumor progression occurred despite continuous interferon treatment. At the same time, the tumor cells were less sensitive to interferon in in vitro tests than prior to interferon therapy. It is suggested that interferon therapy should be given as initial treatment to a few patients with multiple myeloma in a phase I trial.
Collapse
|
77
|
Nilsson K, Kihlman BA. Caffeine, caffeine derivatives and chromosomal aberrations. VI. The influence of temperature on the aberration-frequency induced during prophase and late G2 by 8-methoxycaffeine and 8-chlorocaffeine in Chinese hamster cells. Hereditas 2009; 75:277-80. [PMID: 4798690 DOI: 10.1111/j.1601-5223.1973.tb01170.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
|
78
|
Nilsson K. Septicaemia with Rickettsia helvetica in a patient with acute febrile illness, rash and myasthenia. J Infect 2009; 58:79-82. [DOI: 10.1016/j.jinf.2008.06.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2007] [Revised: 05/07/2008] [Accepted: 06/06/2008] [Indexed: 11/27/2022]
|
79
|
Aliu E, Anderhub H, Antonelli LA, Antoranz P, Backes M, Baixeras C, Barrio JA, Bartko H, Bastieri D, Becker JK, Bednarek W, Berger K, Bernardini E, Bigongiari C, Biland A, Bock RK, Bonnoli G, Bordas P, Bosch-Ramon V, Bretz T, Britvitch I, Camara M, Carmona E, Chilingarian A, Commichau S, Contreras JL, Cortina J, Costado MT, Covino S, Curtef V, Dazzi F, De Angelis A, De Cea del Pozo E, de los Reyes R, De Lotto B, De Maria M, De Sabata F, Delgado Mendez C, Dominguez A, Dorner D, Doro M, Elsässer D, Errando M, Fagiolini M, Ferenc D, Fernandez E, Firpo R, Fonseca MV, Font L, Galante N, Garcia Lopez RJ, Garczarczyk M, Gaug M, Goebel F, Hadasch D, Hayashida M, Herrero A, Höhne D, Hose J, Hsu CC, Huber S, Jogler T, Kranich D, La Barbera A, Laille A, Leonardo E, Lindfors E, Lombardi S, Longo F, Lopez M, Lorenz E, Majumdar P, Maneva G, Mankuzhiyil N, Mannheim K, Maraschi L, Mariotti M, Martinez M, Mazin D, Meucci M, Meyer M, Miranda JM, Mirzoyan R, Moles M, Moralejo A, Nieto D, Nilsson K, Ninkovic J, Otte N, Oya I, Paoletti R, Paredes JM, Pasanen M, Pascoli D, Pauss F, Pegna RG, Perez-Torres MA, Persic M, Peruzzo L, Piccioli A, Prada F, Prandini E, Puchades N, Raymers A, Rhode W, Ribó M, Rico J, Rissi M, Robert A, Rügamer S, Saggion A, Saito TY, Salvati M, Sanchez-Conde M, Sartori P, Satalecka K, Scalzotto V, Scapin V, Schweizer T, Shayduk M, Shinozaki K, Shore SN, Sidro N, Sierpowska-Bartosik A, Sillanpää A, Sobczynska D, Spanier F, Stamerra A, Stark LS, Takalo L, Tavecchio F, Temnikov P, Tescaro D, Teshima M, Tluczykont M, Torres DF, Turini N, Vankov H, Venturini A, Vitale V, Wagner RM, Wittek W, Zabalza V, Zandanel F, Zanin R, Zapatero J, de Jager O, de Ona Wilhelmi E. Observation of Pulsed γ-Rays Above 25 GeV from the Crab Pulsar with MAGIC. Science 2008; 322:1221-4. [DOI: 10.1126/science.1164718] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
80
|
Karlström O, Wacker A, Nilsson K, Astromskas G, Roddaro S, Samuelson L, Wernersson LE. Analysing the capacitance-voltage measurements of vertical wrapped-gated nanowires. NANOTECHNOLOGY 2008; 19:435201. [PMID: 21832684 DOI: 10.1088/0957-4484/19/43/435201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The capacitance of arrays of vertical wrapped-gate InAs nanowires is analysed. With the help of a Poisson-Schrödinger solver, information about the doping density can be obtained directly. Further features in the measured capacitance-voltage characteristics can be attributed to the presence of surface states as well as the coexistence of electrons and holes in the wire. For both scenarios, quantitative estimates are provided. It is furthermore shown that the difference between the actual capacitance and the geometrical limit is quite large, and depends strongly on the nanowire material.
Collapse
|
81
|
Abstract
BACKGROUND Paediatric cardiorespiratory arrest carries a poor prognosis. The most common cause is respiratory insufficiency or hypotension/shock, which can be reversible. The use of RRSs in adult hospitals that proactively intervene when signs of physiological instability occur is widespread and increasing although the level of evidence for their efficiency is a matter of debate. METHODS A systematic literature review was undertaken to evaluate and summarise the current knowledge about paediatric RRSs. RESULTS Paediatric RRSs are in use in several places around the world. One study shows a statistically significant decrease in mortality rate after implementation. Two studies show a non-significant association with decreased mortality rate. Cardiac and/or respiratory arrest rates decreased in all four before-after studies with statistical significance in two. CONCLUSIONS Cardiac arrest and death are rare in paediatric hospitals, which can in part explain the difficulties to demonstrate statistically significant benefits. There are also specific problems regarding calling criteria due to age related physiological diversity as well as chronic disease.
Collapse
|
82
|
Albert J, Aliu E, Anderhub H, Antonelli LA, Antoranz P, Backes M, Baixeras C, Barrio JA, Bartko H, Bastieri D, Becker JK, Bednarek W, Berger K, Bernardini E, Bigongiari C, Biland A, Bock RK, Bonnoli G, Bordas P, Bosch-Ramon V, Bretz T, Britvitch I, Camara M, Carmona E, Chilingarian A, Commichau S, Contreras JL, Cortina J, Costado MT, Covino S, Curtef V, Dazzi F, De Angelis A, De Cea del Pozo E, de los Reyes R, De Lotto B, De Maria M, De Sabata F, Mendez CD, Dominguez A, Dorner D, Doro M, Errando M, Fagiolini M, Ferenc D, FernaÌndez E, Firpo R, Fonseca MV, Font L, Galante N, LoÌpez RJG, Garczarczyk M, Gaug M, Goebel F, Hayashida M, Herrero A, HoÌhne D, Hose J, Hsu CC, Huber S, Jogler T, Kneiske TM, Kranich D, La Barbera A, Laille A, Leonardo E, Lindfors E, Lombardi S, Longo F, LoÌpez M, Lorenz E, Majumdar P, Maneva G, Mankuzhiyil N, Mannheim K, Maraschi L, Mariotti M, MartiÌnez M, Mazin D, Meucci M, Meyer M, Miranda JM, Mirzoyan R, Mizobuchi S, Moles M, Moralejo A, Nieto D, Nilsson K, Ninkovic J, Otte N, Oya I, Panniello M, Paoletti R, Paredes JM, Pasanen M, Pascoli D, Pauss F, Pegna RG, Perez-Torres MA, Persic M, Peruzzo L, Piccioli A, Prada F, Prandini E, Puchades N, Raymers A, Rhode W, RiboÌ M, Rico J, Rissi M, Robert A, RuÌgamer S, Saggion A, Saito TY, Salvati M, Sanchez-Conde M, Sartori P, Satalecka K, Scalzotto V, Scapin V, Schmitt R, Schweizer T, Shayduk M, Shinozaki K, Shore SN, Sidro N, Sierpowska-Bartosik A, SillanpaÌaÌ A, Sobczynska D, Spanier F, Stamerra A, Stark LS, Takalo L, Tavecchio F, Temnikov P, Tescaro D, Teshima M, Tluczykont M, Torres DF, Turini N, Vankov H, Venturini A, Vitale V, Wagner RM, Wittek W, Zabalza V, Zandanel F, Zanin R, Zapatero J. Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe? Science 2008; 320:1752-4. [DOI: 10.1126/science.1157087] [Citation(s) in RCA: 314] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
83
|
Hielte L, Nilsson K, Moen I, Lindblad A, Mared L, Pressler T, Fluge G. Linoleic acid but not EPA and DHA correlates to prognostic markers in Scandinavian CF patients. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60355-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
84
|
Pincikova T, Nilsson K, Karpati F, Hjelte L. Immunomodulatory properties of vitamin D in Scandinavian cystic fibrosis patients. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60200-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
85
|
Olesen A, Sundstrup J, Nilsson K, Moen I. Meconium ileus nutritional values and lung function. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60343-4] [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]
|
86
|
Santesson B, Jonasson J, Nilsson K, Lindahl-Kiessling K. Modulation of SCE frequencies in cell lines derived from human B and T lymphocytes. Hereditas 2008; 98:175-80. [PMID: 6603449 DOI: 10.1111/j.1601-5223.1983.tb00592.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
|
87
|
Nandalur S, Krauss D, Chen P, Lorenc K, Nilsson K, Resau J, Teh B, Zhang J, Martinez A, Akervall J. Genetic Profiles Correlate With Clinical Outcomes in Squamous Cell Carcinoma of Head and Neck. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.363] [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]
|
88
|
Ryberg E, Larsson N, Sjögren S, Hjorth S, Hermansson NO, Leonova J, Elebring T, Nilsson K, Drmota T, Greasley PJ. The orphan receptor GPR55 is a novel cannabinoid receptor. Br J Pharmacol 2007; 152:1092-101. [PMID: 17876302 PMCID: PMC2095107 DOI: 10.1038/sj.bjp.0707460] [Citation(s) in RCA: 1101] [Impact Index Per Article: 64.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The endocannabinoid system functions through two well characterized receptor systems, the CB1 and CB2 receptors. Work by a number of groups in recent years has provided evidence that the system is more complicated and additional receptor types should exist to explain ligand activity in a number of physiological processes. EXPERIMENTAL APPROACH Cells transfected with the human cDNA for GPR55 were tested for their ability to bind and to mediate GTPgammaS binding by cannabinoid ligands. Using an antibody and peptide blocking approach, the nature of the G-protein coupling was determined and further demonstrated by measuring activity of downstream signalling pathways. KEY RESULTS We demonstrate that GPR55 binds to and is activated by the cannabinoid ligand CP55940. In addition endocannabinoids including anandamide and virodhamine activate GTPgammaS binding via GPR55 with nM potencies. Ligands such as cannabidiol and abnormal cannabidiol which exhibit no CB1 or CB2 activity and are believed to function at a novel cannabinoid receptor, also showed activity at GPR55. GPR55 couples to Galpha13 and can mediate activation of rhoA, cdc42 and rac1. CONCLUSIONS These data suggest that GPR55 is a novel cannabinoid receptor, and its ligand profile with respect to CB1 and CB2 described here will permit delineation of its physiological function(s).
Collapse
|
89
|
Liljegren G, Chabok A, Wickbom M, Smedh K, Nilsson K. Acute colonic diverticulitis: a systematic review of diagnostic accuracy. Colorectal Dis 2007; 9:480-8. [PMID: 17573739 DOI: 10.1111/j.1463-1318.2007.01238.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To appraise the literature on the diagnosis of acute colonic diverticulitis by ultrasound (US), computed tomography (CT), barium enema (BE) and magnetic resonance imaging (MRI). METHOD The databases of Pub Med, the Cochrane Library and EMBASE were searched for articles on the diagnosis of diverticulitis published up to November 2005. Studies where US, CT, BE, or MRI were compared with a reference standard on consecutive or randomly selected patients were included. Three examiners independently read the articles according to a prespecified protocol. In case of disagreement consensus was sought. The level of evidence of each article was classified according to the criteria of the Centre for Evidence-Based Medicine (CEBM), Oxford, UK. RESULTS Forty-nine articles relevant to the subject were found and read in full. Twenty-nine of these were excluded. Among the remaining 20 articles, only one study, evaluating both US and CT reached level of evidence 1b according to the CEBM criteria. Two US studies and one MRI study reached level 2b. The remaining studies were level 4. CONCLUSION The best evidence for diagnosis of diverticulitis in the literature is on US. Only one small study of good quality was found for CT and for MRI-colonoscopy.
Collapse
|
90
|
Olesen H, Moen I, Nilsson K, Pressler T, Lindblad A, Fluge G, Hjelte L. 223 Inverse gender gap in nutritional status; Scandinavian CF study consortium. J Cyst Fibros 2007. [DOI: 10.1016/s1569-1993(07)60206-9] [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]
|
91
|
Hjelte L, Olesen H, Nilsson K, Moen I, Pressler T, Lindblad A, Fluge G. 193 Major differences in pancreatic enzyme replacement in Scandinavia. J Cyst Fibros 2007. [DOI: 10.1016/s1569-1993(07)60176-3] [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]
|
92
|
Oreland L, Nilsson K, Damberg M, Hallman J. Monoamine oxidases: activities, genotypes and the shaping of behaviour. J Neural Transm (Vienna) 2007; 114:817-22. [PMID: 17426915 DOI: 10.1007/s00702-007-0694-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2006] [Accepted: 11/01/2006] [Indexed: 01/31/2023]
Abstract
The importance of an interaction between environment and biological factors for the expression for a particular behaviour is illustrated by results from a series of adolescents in which effects of platelet MAO activity and psychosocial environment on criminality was investigated. In a favourable environment platelet MAO-B activity was not associated with criminality, while a very strong association was found in adolescents from a bad psychosocial environment. Essentially similar findings were obtained when a MAO-A promoter polymorphism was analysed instead of platelet MAO-B activity. In boys, presence of the low functioning allele seemed to be protective against criminal activity in combination with a good environment, while it predisposed for criminality in a bad psycho-social environment. In girls, instead, homozygosity for the high activity MAO-A allele interacted with environment to predict criminality. Possible mechanisms underlying the role of monoamine oxidases for behaviour are discussed.
Collapse
|
93
|
Fadl H, Östlund I, Nilsson K, Hanson U. Fasting capillary glucose as a screening test for gestational diabetes mellitus. BJOG 2007. [DOI: 10.1111/j.1471-0528.2006.01243.x] [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]
|
94
|
Romlin B, Petruson K, Nilsson K. Moderate superficial hypothermia prolongs bleeding time in humans. Acta Anaesthesiol Scand 2007; 51:198-201. [PMID: 17096671 DOI: 10.1111/j.1399-6576.2006.01181.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND In vitro and in vivo studies have shown that mild systemic hypothermia influences platelet adhesion and aggregation and coagulation reactions. We wanted to test the hypothesis that mild local hypothermia in healthy volunteers with preserved core temperature increased bleeding time. A secondary aim was to evaluate if local cooling influenced whole blood coagulation measured by thrombelastograph (TEG) in the same setting. METHODS Bleeding time was measured at the left volar forearm at a baseline skin temperature of 32 degrees C and after cooling to 30 degrees C and 28 degrees C in a water bath. Skin temperature was continuously measured by contact thermistors. Measurements of coagulation by TEG were performed at baseline skin temperature before cooling and after cooling to 28 degrees C skin temperature. Tympanic membrane temperature was continuously measured. RESULTS Compared with baseline, bleeding time was significantly prolonged at 30 degrees C skin temperature and further prolonged at 28 degrees C skin temperature. No significant differences were measured in any of the TEG parameters. During the procedure, tympanic membrane temperature did not change. CONCLUSION Lowering the skin temperature from 32 degrees C to 30 degrees C and 28 degrees C with a preserved core temperature more than doubled the bleeding time. Whole blood coagulation measured by TEG was not influenced by the local cooling. In addition to core temperature, local temperature may offer information in understanding the surgical site of bleeding.
Collapse
|
95
|
Fadl H, Östlund I, Nilsson K, Hanson U. Authors response to: Fasting capillary glucose as a screening test for gestational diabetes mellitus. BJOG 2007. [DOI: 10.1111/j.1471-0528.2006.01192.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
96
|
Veiga G, Pires J, Nilsson K. ON THE USE OF SERVICE ORIENTED SOFTWARE PLATFORMS FOR INDUSTRIAL ROBOTIC CELLS. ACTA ACUST UNITED AC 2007. [DOI: 10.3182/20070523-3-es-4908.00019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
97
|
Fadl H, Ostlund I, Nilsson K, Hanson U. Fasting capillary glucose as a screening test for gestational diabetes mellitus. BJOG 2006; 113:1067-71. [PMID: 16956338 DOI: 10.1111/j.1471-0528.2006.01032.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To evaluate fasting capillary glucose as a screening test for gestational diabetes mellitus (GDM) compared with traditional risk factors and repeated random capillary glucose measurements. DESIGN Cross-sectional, population-based study. SETTING Maternal Health Care Clinics in Orebro County, Sweden. POPULATION An unselected population of women without diabetes. METHODS Fasting capillary glucose levels were measured at gestational weeks 28-32. Random capillary glucose levels were measured four to six times during pregnancy. Traditional risk factors for GDM were registered. GDM was diagnosed using a 75-g oral glucose tolerance test. MAIN OUTCOME MEASURES Sensitivity, specificity, likelihood ratios. RESULTS In 55 of 3616 women participating in the study, GDM was diagnosed before 34 weeks of gestation. For fasting capillary glucose cutoff values between 4.0 and 5.0 mmol/l, sensitivity was in the range between 87 and 47% and specificity between 51 and 96%. Using a combined screening model of traditional risk factors with fasting capillary glucose at various cutoff values increased the sensitivity only slightly compared with using fasting capillary glucose alone. CONCLUSION In this Swedish, unselected, low-risk population, fasting capillary glucose measurements were found to be an acceptable and useful screening test for GDM.
Collapse
|
98
|
Zecca G, Gradi EC, Nilsson K, Bellotti M, Dal Verme S, Vegni E, Moja EA. "All the rest is normal". A pilot study on the communication between physician and patient in prenatal diagnosis. J Psychosom Obstet Gynaecol 2006; 27:127-30. [PMID: 17214446 DOI: 10.1080/02688690500305753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The aim of the study was to verify in the context of prenatal diagnosis if the communicative style in consultations is modified in relation to the seriousness of the diagnosis. Videoed consultations after executing amniocentesis and ultra-sound scanning of II level were included in the study with the consent of participants. Only visits with Italian speaking couples without psychiatric problems were analyzed for the study. Selected visits were grouped into "low" (L, minor anomalies) and "high" (H, serious anomalies) visits. A modified version of the RIAS tailored for the specific context was used in the analysis. 27 visits, respectively 13 H and 14 L, were studied. Analysis of the communicative structure of the consultations did not show significant differences between the two groups. The communication during the consultation seems to be mostly influenced by a highly disease-centered model that is not dependent on the content of the consultation itself. Only emotional exchanges showed a marginally significant decrease in the H visits (t = 1.995, p = 0.057), suggesting the probable difficulty of the disease-centered model to manage emotional items during a highly dramatic consultation. Due to the exploratory nature of the study, further research is needed to test the preliminary results.
Collapse
|
99
|
Dimberg A, Kårehed K, Nilsson K, Oberg F. Inhibition of Monocytic Differentiation by Phosphorylation-deficient Stat1 is Associated with Impaired Expression of Stat2, ICSBP/IRF8 and C/EBPɛ. Scand J Immunol 2006; 64:271-9. [PMID: 16918696 DOI: 10.1111/j.1365-3083.2006.01827.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Monocytic differentiation is coordinated through the ordered activation of multiple signalling pathways, controlling transcription of specific subsets of genes that regulate the development of the mature phenotype. To identify key transcription factors involved in this process, we used the human monoblastic U-937 cell line as a model of monocytic differentiation. U-937 cells can be differentiated by treatment with all-trans retinoic acid (ATRA) and 1,25alpha-dihydroxycholecalciferol (VitD3), resulting in G(0)/G(1)-arrested cells expressing monocytic surface markers. We have previously shown that ATRA-induced differentiation and cell cycle arrest specifically requires Stat1 activation, through phosphorylation of tyrosine 701 and serine 727. In this report, we used U-937 cells expressing phosphorylation-deficient mutants of Stat1 (Stat1Y701F and Stat1S727A) to determine myeloid-specific transcription factors that are activated downstream of Stat1 during induced monocytic differentiation. We demonstrate that ATRA-induced upregulation of Stat2, ICSBP/IRF8 and C/EBPepsilon, key transcription factors linked to myelomonocytic differentiation, is selectively impaired in cells expressing mutant Stat1. In contrast, ATRA-induced expression of PU.1, C/EBPalpha, C/EBPbeta and IRF-1 was unaffected. Taken together, our data suggest that ATRA-induced regulation of Stat2, ICSBP and C/EBPepsilon is dependent on active Stat1, and that a failure to correctly regulate these transcription factors is associated with the inhibition of monocytic differentiation.
Collapse
|
100
|
Skogsberg S, Tobin G, Kröber A, Kienle D, Thunberg U, Aleskog A, Karlsson K, Laurell A, Merup M, Vilpo J, Sundström C, Roos G, Jernberg-Wiklund H, Döhner H, Nilsson K, Stilgenbauer S, Rosenquist R. The G(-248)A polymorphism in the promoter region of the Bax gene does not correlate with prognostic markers or overall survival in chronic lymphocytic leukemia. Leukemia 2006; 20:77-81. [PMID: 16307023 DOI: 10.1038/sj.leu.2404030] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The G(-248)A polymorphism in the promoter region of the Bax gene was recently associated with low Bax expression, more advanced stage, treatment resistance and short overall survival in B-cell chronic lymphocytic leukemia (CLL), the latter particularly in treated patients. To investigate this further, we analyzed 463 CLL patients regarding the presence or absence of the G(-248)A polymorphism and correlated with overall survival, treatment status and known prognostic factors, for example, Binet stage, VH mutation status and genomic aberrations. In this material, similar allele and genotype frequencies of the Bax polymorphism were demonstrated in CLL patients and controls (n=207), where 19 and 21% carried this polymorphism, respectively, and no skewed distribution of the polymorphism was evident between different Binet stages and VH mutated and unmutated CLLs. Furthermore, no difference in overall survival was shown between patients displaying the G(-248)A polymorphism or not (median survival 85 and 102 months, respectively, P=0.21), and the polymorphism did not influence outcome specifically in treated CLL. Neither did the polymorphism affect outcome in prognostic subsets defined by VH mutation status or genomic aberrations. In conclusion, the pathogenic role and clinical impact of the Bax polymorphism is limited in CLL.
Collapse
MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/biosynthesis
- Biomarkers, Tumor/genetics
- Cohort Studies
- Cytogenetic Analysis
- Female
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Male
- Middle Aged
- Polymorphism, Genetic/genetics
- Prognosis
- Promoter Regions, Genetic
- Retrospective Studies
- Survival Rate
- bcl-2-Associated X Protein/biosynthesis
- bcl-2-Associated X Protein/genetics
Collapse
|