24 results on '"J. Rothmann"'
Search Results
2. OC-018 ASSESSMENT OF A SUPPORT GARMENT IN RELATION TO A PARASTOMAL BULGE – A QUALITATIVE STUDY
- Author
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M Krogsgaard, T B Borglit, S Z Theisen, and M J Rothmann
- Subjects
Surgery - Abstract
Aim To investigate patients’ experiences of the assessment of support garments in relation to a parastomal bulge. Material and Methods A qualitative study with 11 in-depth semi-structured interviews. A preceding systematic literature review and a small field study conducted before the study informed the main topics in the interview guide. Results Garments had to fit patients’ needs and personal preferences; being comfortable, flexible and user-friendly. When comorbidities, e.g., incontinence, poor balance, arthritis and visual impairment were not accounted for, garments were unmanageable to patients. Patients needed guidance on how to apply and use the garment. Lack of hands-on guidance left patients confused and helpless with unworn garments. Re-assessment of a garment necessitated several visits to the manufacturer, was time-consuming and stressful for patients and required patients’ physical and mental resources. The garment created new possibilities and challenges; well-assessed garments reduced symptoms from the parastomal bulge while poorly assessed worsened or induced new symptoms and ended up unworn. Conclusion Exploring patients’ expectations, symptoms, needs and comorbidity were vital for patients’ subsequent use and benefit of garments. Tailor-made information, guidance and professional assistance are important in the assessment process. Interventions to support a patient-centred, individual and systematic approach are warranted.
- Published
- 2022
- Full Text
- View/download PDF
3. Participatory design in health care: participation, power and knowledge.
- Author
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Mette J. Rothmann, Dorthe Boe Danbjørg, Charlotte Myhre Jensen, and Jane Clemensen
- Published
- 2016
- Full Text
- View/download PDF
4. Use of antiosteoporotic medication in the Danish ROSE population-based screening study
- Author
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M P, Høiberg, K H, Rubin, T, Holmberg, M J, Rothmann, S, Möller, J, Gram, M, Bech, K, Brixen, and A P, Hermann
- Subjects
Aged, 80 and over ,Bone Density Conservation Agents ,Denmark ,Middle Aged ,Risk Assessment ,Drug Utilization ,Medication Adherence ,Treatment Refusal ,Absorptiometry, Photon ,Humans ,Mass Screening ,Female ,Registries ,Osteoporosis, Postmenopausal ,Osteoporotic Fractures ,Aged - Abstract
Use of antiosteoporotic medication in the population-based, risk-stratified osteoporosis strategy evaluation (ROSE) screening study, comparing the use of FRAX followed by DXA with usual care, was examined. Screening increased the overall use of medication. Being recommended treatment by the hospital and higher age increased the likelihood of starting medication, but, nevertheless, a large percentage opted not to start treatment.The aim of the study was to examine the impact on medication prescription, adherence, and persistence of osteoporotic medicine in the randomized population-based ROSE screening study for osteoporosis.The Danish ROSE study included a population-based random sample of women aged 65-81 years randomized to either a two-step screening program consisting of FRAX followed by DXA for high-risk participants or opportunistic screening for osteoporosis (usual care). This sub-study on the intention-to-treat population examined the impact of the screening program on antiosteoporotic medication redemption rates, adherence, and persistence using Danish registers.A total of 30,719 of 34,229 women were treatment-naïve. Significantly more participants in the screening group started on antiosteoporotic medication, but no differences in adherence and persistence rates were found. Higher age was associated with a higher likelihood of starting medication. A low Charlson comorbidity score (= 1) was associated with higher treatment initiation but lower adherence and persistence of antiosteoporotic treatment. A total of 31.7% of participants advised to initiate treatment did not follow the advice.Screening for osteoporosis using FRAX followed by DXA increased the overall use of antiosteoporotic medication in the screening group without differences in adherence and persistence rates. A large percentage of participants advised to initiate treatment did nevertheless fail to do so.
- Published
- 2018
5. Corrigendum to 'Prediction of metabolic clusters in early-lactation dairy cows using models based on milk biomarkers' (J. Dairy Sci. 102:2631–2644)
- Author
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J. Rothmann, Elizabeth R. Matthews, J. Vandepitte, X. Chen, S. P. Vera, GplusE, Z. Cheng, Cinzia Marchitelli, L. Vandevelde, J. Ettema, F. Kearney, C. Elsik, L. Kosten, Michel Georges, S. Dahl, Haruko Takeda, G. Conant, M. Bonneau, M.A. Krogh, Frédéric Colinet, F. Signorelli, K. Hermans, Miel Hostens, Carole Bastin, A. Santoro, B. S. Bernardo, S. Moerman, M. Lucy, N. McLoughlin, A. Pearn, T. Rousing, A. Evertson, Aurélie Laine, M. Schulze, A. CrisÃ, T. Andersen, H. Hammami, H. Chen, Leslie Foldager, Roisin O'Flaherty, J. Zhao, D. Matthews, J. Taylor, A. Fouladi, S. Hallinan, A. Fahey, C. Wathes, F. Napolitano, Clément Grelet, M. Bell, Anne-Sophie Van Laere, Hannes Bogaert, L. Buttazzoni, Pauline M. Rudd, A. Cromie, G. Pollott, M. Vaneetvelde, Mark A. Crowe, Mazdak Salavati, Geert Opsomer, E. Meyer, M. McClure, J. De Koster, A. Wylie, C. Tan, Charlotte Gaillard, D. Werling, Nicolas Gengler, G. Wang, J. McClure, G. Hua, A. Fogh, A. Pompozzi, B. Vanranst, J. Hoglund, B. Moioli, S. Zhang, L. Yang, C. Byrne, M. R. Pamplona, and S. Ostergaard
- Subjects
Animal science ,medicine.anatomical_structure ,Lactation ,Genetics ,medicine ,Animal Science and Zoology ,Biology ,Food Science - Published
- 2019
- Full Text
- View/download PDF
6. Advanced MCT technologies at LETI for space applications
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O. Gravrand, J. Rothmann, G. Destefanis, and A. Durand
- Subjects
Physics ,Optics ,Space and Planetary Science ,business.industry ,General Engineering ,Systems engineering ,European market ,Astronomy and Astrophysics ,Space (commercial competition) ,Infrared focal plane array ,business - Abstract
This document is a recap of an oral presentation made at Nice during the INSU Astrophysics Detector Workshop 2008. It aims at giving an overview of the achievements and ongoing developments presently carried out at CEA-LETI in the field of Infrared focal plane array. Although most of the research actually performed at LETI is not driven by space oriented application, the excellence and the cutting edge of the outcome is or can be applied to space-dedicated components. This paper focus on features and developments from which astrophysics observation would benefit in the near future on the European market. This encompassed “traditionnal” developments such as format enlargement, low dark current technology such as p/n structure but it also shade light on promising and thrilling development such as avalanche photodiode array. It eventually gives some hints of none MCT technologies processed at LETI.
- Published
- 2009
- Full Text
- View/download PDF
7. CNES detector development for scientific space missions: status and roadmap for infrared detectors
- Author
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J. Rothmann, Olivier Boulade, Bruno Fièque, O. Gravrand, A. Bardoux, J. P. Zanatta, H. Geoffray, and L. Tauziède
- Subjects
Physics ,chemistry.chemical_compound ,Development (topology) ,chemistry ,Infrared ,Detector ,Systems engineering ,Ir detector ,Mercury cadmium telluride ,Space exploration ,Low noise ,Remote sensing - Abstract
CNES (French Space Agency) continuously drives the development of detectors for Space based Astronomy. Several promising infrared HgCdTe technologies are being developed at CEA and Sofradir. This paper gives a status on these developments as well as an overview of the associated roadmap.
- Published
- 2014
- Full Text
- View/download PDF
8. Contribution of secondaries to the radiation environment on space missions
- Author
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J. Rothmann, J.E. McKisson, L. Snead, J. C. Flatman, D.C. Camp, T. Ward, C.S. Dyer, P.S. Haskins, and P.R. Truscott
- Subjects
Atmospheric Science ,Aerospace Engineering ,Cosmic ray ,Astrophysics ,Radiation ,Space exploration ,Ionizing radiation ,symbols.namesake ,Radiation Protection ,Radiation Monitoring ,Neutron ,Neutrons ,Physics ,Spacecraft ,Germanium ,business.industry ,Bremsstrahlung ,Astronomy and Astrophysics ,Models, Theoretical ,Space Flight ,Geophysics ,Space and Planetary Science ,Van Allen radiation belt ,symbols ,General Earth and Planetary Sciences ,Protons ,business ,Bismuth ,Monte Carlo Method - Abstract
Calculations to predict the radiation environment for spacecraft in low earth orbit sometimes ignore the contribution from secondary radiation products. However, the contribution of secondaries, particularly neutrons, on heavy spacecraft or in planetary bodies can be of concern for biological systems. The Shuttle Activation Monitor (SAM) and Cosmic Radiation Effects and Activation Monitor (CREAM) experiments provide valuable data on secondary (as well as primary) radiation effects. Comparisons have been made between induced activity from flight-exposed samples, induced activity in a ground-irradiated sample, and Monte Carlo-derived predictions with and without secondaries. These comparisons show that for a flight-exposed sample, predictions which omit the secondary contribution result in a spectrum that is too low by a factor of 2. The addition of the secondaries results in a predicted spectrum that closely matches the measured data.
- Published
- 1994
- Full Text
- View/download PDF
9. Commentary on the paper by Zhang et al. — Interaction and evolution in epidemiology
- Author
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Kenneth J. Rothmann
- Subjects
Fossil Record ,History ,Premise ,Zhàng ,Environmental ethics - Abstract
Zhang et al. (2004) have traced the evolution of epidemiologic concepts through the “fossil record” of selected textbooks, one of which is my 1986 book, Modern epidemiology (Rothman, 1986). I would like to report that it feels better to be the author of a fossil than to be a fossil oneself, however fine that distinction may be — but some might argue with my premise.
- Published
- 2004
- Full Text
- View/download PDF
10. Synthetic peptide homologous to the envelope proteins of retroviruses shares a cross-reacting epitope with the CD4 receptor
- Author
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N F Hassan, J Rothmann, Naynesh Kamani, Steven D. Douglas, and Donald E. Campbell
- Subjects
Microbiology (medical) ,medicine.drug_class ,Receptor expression ,Molecular Sequence Data ,Retroviridae Proteins ,Peptide ,Cross Reactions ,In Vitro Techniques ,Monoclonal antibody ,Epitope ,Monocytes ,Epitopes ,Viral envelope ,Viral Envelope Proteins ,medicine ,Humans ,Amino Acid Sequence ,Peptide sequence ,Antigens, Viral ,Cell Line, Transformed ,chemistry.chemical_classification ,biology ,Antibodies, Monoclonal ,Molecular biology ,chemistry ,Polyclonal antibodies ,CD4 Antigens ,biology.protein ,Antibody ,Peptides ,Research Article - Abstract
A synthetic peptide (CKS-17) homologous to a highly conserved region of the retroviral transmembrane protein p15E was tested for its effect on receptor expression on monocytes. The CKS-17 amino acid sequence is present in several retroviruses including human T-cell lymphotropic virus types I and II and human immunodeficiency virus. The CKS-17 peptide has been previously shown to inhibit monocyte superoxide production, natural killer cell activity, polyclonal B-cell activation, and monocyte-mediated killing by inactivation of interleukin-1. In this study, we demonstrated that the anti-CD4 monoclonal antibody OKT4 binds strongly in vitro to CKS-17-treated human blood monocytes, whereas other antibodies tested were not reactive. This observed binding was the result of direct interaction of OKT4 antibody with the CKS-17 peptide. Moreover, a partial homology was found in amino acid sequence analysis of the CD4 epitope and the CKS-17 peptide.
- Published
- 1990
11. Methoden zur quantitativen Bestimmung von Aceton, Acetessigs�ure und?-Oxybutters�ure in tierischen Fl�ssigkeiten und Organen
- Author
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J. Wagner, M. W. Goldblatt, M. H. P. Sitsen, L. Lorber, O. v. Fürth, P. Fleury, W. Stepp, H. Bierry, E. Herzfeld, C. Gerhardt, G. Gorr, D. Charnass, J. Rothmann-Mannheim, A. Lublin, L. Moquet, J. Snapper, M. Händel, N. O. Engfeldt, Schenk, J. J. Awad, A. Goldfederova, G. Ljunggren, and A. Grünbaum
- Subjects
Chromatography ,Chemistry ,Biochemistry ,Analytical Chemistry - Published
- 1928
- Full Text
- View/download PDF
12. BONE RESORBING POTENTIAL OF ENDOTOXIN AND ITS IMMUNOPHARMACOLOGICAL MODULATIONS
- Author
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F. Sanavi, A. Nowotny, K. Sallay, E. Kovats, J. Rothmann, Pham Ph, D. Siegler, and A.M. Nowotny
- Subjects
Chemistry - Published
- 1984
- Full Text
- View/download PDF
13. Hemin stimulating effect on colony formation of leukemic and bone marrow cells
- Author
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J, Rothmann, C F, Hertogs, Z, Malik, and D H, Pluznik
- Subjects
Male ,Mice, Inbred ICR ,Mast-Cell Sarcoma ,Bone Marrow Cells ,Serum Albumin, Bovine ,Heme ,Stimulation, Chemical ,Hematopoiesis ,Colony-Forming Units Assay ,Mice ,Cell Transformation, Neoplastic ,Leukemia, Myeloid ,Animals ,Hemin ,Cattle ,Leukemia, Erythroblastic, Acute ,Leukemia L1210 - Abstract
The hemin enhancing activity on colony formation of leukemic and normal bone-marrow (BM) cells is described. The colony growth of Friend erythroleukemic cells (FL) and mastocytoma cells (M) was markedly enhanced. On the other hand, myeloid leukemic cells (P) and normal bone-marrow cells (BM) were only slightly affected. Inhibition of colony formation was observed with lymphoid leukemic cells (L). For M and BM cells, the horse serum could be replaced by BSA with preservation of hemin enhancing activity.
- Published
- 1983
14. Growth enhancement and serum replacement in cloning of murine mastocytoma and granulocyte/macrophage precursor cells: two distinct activities present in hemolysates
- Author
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J, Rothmann, C F, Hertogs, and D H, Pluznik
- Subjects
Erythrocytes ,Sheep ,Macrophages ,Guinea Pigs ,Mast-Cell Sarcoma ,Hematopoietic Stem Cells ,Hemolysis ,Clone Cells ,Culture Media ,Rats ,Colony-Forming Units Assay ,Hemoglobins ,Mice ,Blood ,Colony-Stimulating Factors ,Animals ,Trypsin ,Horses ,Rabbits ,Sarcoma, Experimental ,Cell Division ,Granulocytes - Abstract
In the present study we investigated the serum replacing and enhancing activities of erythrocyte lysates, obtained from different animal species, on the growth of murine mastocytoma cells and normal granulocyte/macrophage precursor cells (CFU-C) present in bone marrow. The soft agar technique for cloning hemopoietic cells in vitro was used to quantitate the growth of these cells in culture. Rat, rabbit, guinea pig, mouse and sheep hemolysates were tested for their capacity to replace or to enhance serum as a growth promoter. All hemolysates except mouse were able to replace serum efficiently when mastocytoma cells were cloned. On the other hand, only rat hemolysate proved to be efficient for cloning normal murine CFU-C. Since increasing the concentration of hemolysates in the soft agar medium did not change these results, the differences in activity are unlikely to reflect quantitative variations. However, hemolysates with little or no serum replacing capacity enhanced the clonal growth of normal CFU-C when added to small amounts (2.5%) of horse serum. Trypsin treatment of rat hemolysate destroyed its serum replacing capacity but not its enhancing activity. No correlation was found between the amount of hemoglobin and the replacing activity of each hemolysate. The data obtained in the present study point to the presence of at least two distinct activities in hemolysate: serum replacing and growth enhancing capacities.
- Published
- 1979
15. Replacement of serum by hemolysate as growth promoter for murine leukemic and normal hemopoietic progenitor cells in culture
- Author
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J, Rothmann, C F, Hertogs, and D H, Pluznik
- Subjects
Male ,Leukemia, Experimental ,Bone Marrow Cells ,Chemical Fractionation ,Hematopoietic Stem Cells ,Hemolysis ,Cell Line ,Clone Cells ,Culture Media ,Hematopoiesis ,Rats ,Mice ,Colony-Stimulating Factors ,Bone Marrow ,Animals ,Mast Cells ,Growth Substances ,Cell Division - Abstract
The present study was undertaken to test whether lysates prepared from rat erythrocytes can replace serum as in vitro growth promoters for murine leukemic and normal hemopoietic progenitor cells (CFU-C). Normal bone marrow and three leukemic cell lines (P-1081, L-1210 and P-815) were used in all the experiments. The soft agar technique for cloning hemopoietic cells was used to quantitate cell proliferation. Addition of hemolysate to the agar medium at a final concentration of 4% promoted the growth of a maximal number of leukemic colonies, similar to the number of colonies obtained when 20% serum was added to the soft agar. As for normal CFU-C, addition of 10% hemolysate or 40% horse serum promoted the growth of comparable numbers of colonies. Rat hemolysate can therefore replace horse serum as a growth promoter of leukemic and normal CFU-C present in culture. It was also shown that rat hemolysate cannot substitute for the colony stimulating factor (CSF) needed for the cloning of CFU-C. However, addition of hemolysate, CSF and serum to the soft agar cultures promoted a potentiated rather than an additive growth of CFU-C.
- Published
- 1977
16. [Trigeminal neuralgia? Denticles]
- Author
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J, ROTHMANN
- Subjects
Dental Pulp Diseases ,Dental Pulp Calcification ,Humans ,Trigeminal Neuralgia ,Dental Pulp - Published
- 1951
17. Students' Perceptions About Inclusive and Orthodox Masculinities in Contact Sports at a South African University.
- Author
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Rothmann J, Antonie K, Nell W, and Ellis S
- Subjects
- Male, Female, Humans, South Africa, Universities, Students, Masculinity, Sexual and Gender Minorities
- Abstract
In light of recent studies on the changing views on masculinity, this quantitative study aimed to determine the attitudes of South African undergraduate students toward the display of the tenets associated with orthodox and inclusive masculinities in contact sport, and to determine to what extent these attitudes were predicted by students' gender, race, religiosity, and attitudes toward the importance of primary gender-role sport socialization and homosexuality. Findings, which originated from the data collected through the use of 200 structured interviews, indicated that male and female students endorsed displays of a 'softening' in masculinities in sport, and were slightly opposed toward displays of 'harder' masculinities, a trend that was strongest among women. The more importance these students' ascribed to primary gender-role sports socialization, the more likely they were to support the display of orthodox masculinities in sport, and the less likely they were to endorse inclusive masculinities, with the converse being true for those who were more accepting of homosexuality. The study contributes to current theorization in a twofold way: Firstly, by problematizing a simplistic differentiation between orthodox and inclusive masculine typologies in favor of ascribing to theorization that indicates how the attitudes among students of the said South African university campus arguably attest to the concurrent existence of 'multiple dominant masculinities.' In-keeping with this, the findings arguably echo the Andersonian emphasis on the co-existence of declining levels of homohysteria among younger persons and the continuing prevalence of homophobia among some students on university campuses.
- Published
- 2023
- Full Text
- View/download PDF
18. The role of docetaxel in nonplatinum-based combination chemotherapy for non-small-cell lung cancer.
- Author
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Petty WJ, Rothmann J, Dragnev KH, and Rigas JR
- Abstract
A number of newer chemotherapeutic agents including docetaxel, gemcitabine, irinotecan, and vinorelbine have demonstrated substantial activity in the treatment of non-small-cell lung cancer (NSCLC). Their palliative role as single agents and in combination with platinum has been well defined in NSCLC. More recently, combining these agents without platinum has been the primary objective of numerous worldwide clinical trials. Two of these docetaxel/nonplatinum-based combinations have demonstrated comparable activity to platinum-based regimens in randomized trials. While platinum-based chemotherapy remains an important therapy for treatment of NSCLC, nonplatinum combinations may be a reasonable alternative for patients. These docetaxel/nonplatinum combinations warrant further evaluation in randomized trials to define their optimal role as standard therapy for NSCLC.
- Published
- 2002
- Full Text
- View/download PDF
19. Synthetic peptide homologous to the envelope proteins of retroviruses shares a cross-reacting epitope with the CD4 receptor.
- Author
-
Rothmann J, Hassan NF, Campbell DE, Kamani N, and Douglas SD
- Subjects
- Amino Acid Sequence, Antibodies, Monoclonal, Antigens, Viral, Cell Line, Transformed, Cross Reactions, Epitopes, Humans, In Vitro Techniques, Molecular Sequence Data, Monocytes immunology, CD4 Antigens immunology, Peptides immunology, Retroviridae Proteins immunology, Viral Envelope Proteins immunology
- Abstract
A synthetic peptide (CKS-17) homologous to a highly conserved region of the retroviral transmembrane protein p15E was tested for its effect on receptor expression on monocytes. The CKS-17 amino acid sequence is present in several retroviruses including human T-cell lymphotropic virus types I and II and human immunodeficiency virus. The CKS-17 peptide has been previously shown to inhibit monocyte superoxide production, natural killer cell activity, polyclonal B-cell activation, and monocyte-mediated killing by inactivation of interleukin-1. In this study, we demonstrated that the anti-CD4 monoclonal antibody OKT4 binds strongly in vitro to CKS-17-treated human blood monocytes, whereas other antibodies tested were not reactive. This observed binding was the result of direct interaction of OKT4 antibody with the CKS-17 peptide. Moreover, a partial homology was found in amino acid sequence analysis of the CD4 epitope and the CKS-17 peptide.
- Published
- 1990
- Full Text
- View/download PDF
20. Replacement of serum by hemolysate as growth promoter for murine leukemic and normal hemopoietic progenitor cells in culture.
- Author
-
Rothmann J, Hertogs CF, and Pluznik DH
- Subjects
- Animals, Cell Division, Cell Line, Chemical Fractionation, Clone Cells, Colony-Stimulating Factors, Culture Media, Male, Mast Cells physiology, Mice, Rats, Bone Marrow physiology, Bone Marrow Cells, Growth Substances, Hematopoiesis, Hematopoietic Stem Cells physiology, Hemolysis, Leukemia, Experimental
- Abstract
The present study was undertaken to test whether lysates prepared from rat erythrocytes can replace serum as in vitro growth promoters for murine leukemic and normal hemopoietic progenitor cells (CFU-C). Normal bone marrow and three leukemic cell lines (P-1081, L-1210 and P-815) were used in all the experiments. The soft agar technique for cloning hemopoietic cells was used to quantitate cell proliferation. Addition of hemolysate to the agar medium at a final concentration of 4% promoted the growth of a maximal number of leukemic colonies, similar to the number of colonies obtained when 20% serum was added to the soft agar. As for normal CFU-C, addition of 10% hemolysate or 40% horse serum promoted the growth of comparable numbers of colonies. Rat hemolysate can therefore replace horse serum as a growth promoter of leukemic and normal CFU-C present in culture. It was also shown that rat hemolysate cannot substitute for the colony stimulating factor (CSF) needed for the cloning of CFU-C. However, addition of hemolysate, CSF and serum to the soft agar cultures promoted a potentiated rather than an additive growth of CFU-C.
- Published
- 1977
21. Biological activities of lipopolysaccharide fractionated by preparative acrylamide gel electrophoresis.
- Author
-
Ohta M, Rothmann J, Kovats E, Pham PH, and Nowotny A
- Subjects
- Adjuvants, Immunologic pharmacology, Animals, Colony-Stimulating Factors biosynthesis, Cytotoxicity, Immunologic drug effects, Electrophoresis, Polyacrylamide Gel, Female, Lipopolysaccharides isolation & purification, Lymphocyte Activation, Macrophages immunology, Mice, Mice, Inbred C3H, Mice, Inbred DBA, Rabbits, Salmonella immunology, Shwartzman Phenomenon chemically induced, Structure-Activity Relationship, Lipopolysaccharides pharmacology
- Abstract
Lipopolysaccharide from a smooth strain of Salmonella minnesota was fractionated into two major fractions and one intermediate fraction by using sodium dodecylsulfate-polyacrylamide gel electrophoresis. On the basis of the study by Hitchcock and Brown, it was deduced that the top fraction was mainly long O-side chain LPS and the bottom fraction was O-side chain-less LPS. The middle fraction was a mixture of both short O-side chain LPS and O-side chain-less LPS. The antigenic properties and biological activities were not altered in this fractionation procedure. Comparison of the biological activities of the top fraction with those of the bottom fraction revealed that the bottom fraction had higher activity in polyclonal B-cell activation and spleen-swelling effect and that there was no significant difference in adjuvant activity, ability to render macrophages cytotoxic, induction of colony-stimulating factor and the ability to induce the Schwartzmann reaction. It was suggested that O-side chain makes no contribution to the latter biological activities including adjuvant activity of S. minnesota LPS.
- Published
- 1985
- Full Text
- View/download PDF
22. Hemin stimulating effect on colony formation of leukemic and bone marrow cells.
- Author
-
Rothmann J, Hertogs CF, Malik Z, and Pluznik DH
- Subjects
- Animals, Bone Marrow Cells, Cattle, Leukemia L1210 blood, Leukemia, Erythroblastic, Acute blood, Leukemia, Myeloid blood, Male, Mast-Cell Sarcoma blood, Mice, Mice, Inbred ICR, Serum Albumin, Bovine pharmacology, Stimulation, Chemical, Cell Transformation, Neoplastic drug effects, Colony-Forming Units Assay, Hematopoiesis drug effects, Heme analogs & derivatives, Hemin pharmacology
- Abstract
The hemin enhancing activity on colony formation of leukemic and normal bone-marrow (BM) cells is described. The colony growth of Friend erythroleukemic cells (FL) and mastocytoma cells (M) was markedly enhanced. On the other hand, myeloid leukemic cells (P) and normal bone-marrow cells (BM) were only slightly affected. Inhibition of colony formation was observed with lymphoid leukemic cells (L). For M and BM cells, the horse serum could be replaced by BSA with preservation of hemin enhancing activity.
- Published
- 1983
23. Growth enhancement and serum replacement in cloning of murine mastocytoma and granulocyte/macrophage precursor cells: two distinct activities present in hemolysates.
- Author
-
Rothmann J, Hertogs CF, and Pluznik DH
- Subjects
- Animals, Blood, Cell Division, Clone Cells, Colony-Forming Units Assay, Colony-Stimulating Factors, Erythrocytes, Guinea Pigs, Hemoglobins analysis, Horses, Mice, Rabbits, Rats, Sarcoma, Experimental physiopathology, Sheep, Trypsin pharmacology, Culture Media, Granulocytes physiology, Hematopoietic Stem Cells physiology, Hemolysis, Macrophages physiology, Mast-Cell Sarcoma physiopathology
- Abstract
In the present study we investigated the serum replacing and enhancing activities of erythrocyte lysates, obtained from different animal species, on the growth of murine mastocytoma cells and normal granulocyte/macrophage precursor cells (CFU-C) present in bone marrow. The soft agar technique for cloning hemopoietic cells in vitro was used to quantitate the growth of these cells in culture. Rat, rabbit, guinea pig, mouse and sheep hemolysates were tested for their capacity to replace or to enhance serum as a growth promoter. All hemolysates except mouse were able to replace serum efficiently when mastocytoma cells were cloned. On the other hand, only rat hemolysate proved to be efficient for cloning normal murine CFU-C. Since increasing the concentration of hemolysates in the soft agar medium did not change these results, the differences in activity are unlikely to reflect quantitative variations. However, hemolysates with little or no serum replacing capacity enhanced the clonal growth of normal CFU-C when added to small amounts (2.5%) of horse serum. Trypsin treatment of rat hemolysate destroyed its serum replacing capacity but not its enhancing activity. No correlation was found between the amount of hemoglobin and the replacing activity of each hemolysate. The data obtained in the present study point to the presence of at least two distinct activities in hemolysate: serum replacing and growth enhancing capacities.
- Published
- 1979
24. [Trigeminal neuralgia? Denticles].
- Author
-
ROTHMANN J
- Subjects
- Humans, Dental Pulp, Dental Pulp Calcification, Dental Pulp Diseases, Trigeminal Neuralgia etiology
- Published
- 1951
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