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Baum E, Donner-Banzhoff N. [Angina pectoris]. MMW Fortschr Med 2007; 149:39-40. [PMID: 17992903 DOI: 10.1007/bf03365152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Baum E, Dressler C, Beutel RG. Head structures of Karoophasma sp. (Hexapoda, Mantophasmatodea) with phylogenetic implications. J ZOOL SYST EVOL RES 2007. [DOI: 10.1111/j.1439-0469.2006.00380.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Sönnichsen A, Rambeck M, Donner-Banzhoff N, Baum E. Cholesterinbestimmung beim „Check ab 35”: Hat die Untersuchung Konsequenzen? ACTA ACUST UNITED AC 2006. [DOI: 10.1055/s-2006-942198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Dain L, Braun-Moscovici Y, Baum E, Nahir AM, Hoffer E. Modification of neutrophil function by plasma of rheumatoid arthritis patients treated with infliximab. Clin Exp Rheumatol 2006; 24:38-44. [PMID: 16539817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
OBJECTIVE To examine whether the release of superoxide anions from neutrophils of healthy donors was affected when incubated with plasma from infliximab-treated rheumatoid arthritis (RA) patients. METHODS Fifteen consecutive seropositive RA patients were treated with 3mg/kg infliximab on weeks 0, 2, 6, and 14. Disease activity was assessed by DAS28 score and by IL-6 level. Neutrophils from healthy donors were incubated with plasma drawn before each infliximab treatment. PMA-stimulated superoxide release was measured by the ferricytochrome C reduction method. RESULTS 53% of the patients had a favorable clinical response. IL-6 levels showed a significant decline at week two, with a gradual increase thereafter. Treatment with infliximab did not change the superoxide production. However, when the group was divided retrospectively to responders (DeltaDAS28 > -1.2) and non-responders (DeltaDAS28 < -1.2), two different patterns were seen, although the pre-treatment levels were similar: Among the responders IL-6 remained low at its 2 weeks level till week 14, while in the non responders IL-6 increased 3 times (P < 0.03) from week 2 to 14. The responders showed mild, but continuous, reduction of superoxide release, while in the non-responders it increased significantly from week 2 on. CONCLUSION The reduction in IL-6 in RA sera following anti-TNFalpha therapy has little influence on the capacity of these sera to stimulate healthy neutrophils to produce superoxide, suggesting the existence of non-TNFalpha non-IL-6 dependent neutrophil-stimulating mediators in RA sera. The increasing level of IL-6 among the non-responders after initial dramatic decline might represent an escape phenomenon, possibly caused by alternative mediator(s). Clinically, this IL-6 "escape" might be used as a tool for early identification of responders from non-responders.
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Krones T, Keller H, Sadowski E, Soennichsen A, Baum E, Donner-Banzhoff N. ARRIBA Herz – Erste Ergebnisse eines Instrumentes zur absoluten Risikoberechnung und partizipativen Entscheidungsfindung in der Herz-Kreislauf- Primärprävention. DAS GESUNDHEITSWESEN 2005. [DOI: 10.1055/s-2005-920660] [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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Sönnichsen AC, Donner-Banzhoff N, Baum E. [Food-drug interactions: an underestimated risk]. MMW Fortschr Med 2005; 147:31-4. [PMID: 16302488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
With only few exceptions, administration of medicaments should, in principle, be independent of food intake (at least half an hour before or two hours after eating). This ensures uniform and assessable bioavailability. However, it also entails the risk that the patient is more likely to forget to take medication postponed to 2 hours after a meal, than when it is directly coupled to a meal. Certain foodstuffs or food constituents, such as, for example, grapefruit, Seville orange juice, red wine, alcoholic drinks in general, or large quantities of caffeine and garlic should be avoided during drug treatment. In addition, specific interactions with certain drugs must also be taken into account (e.g. MAO inhibitors and tyramine, curamine and vitamin K).
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Sadowski EM, Eimer C, Keller H, Krones T, Sönnichsen AC, Baum E, Donner-Banzhoff N. Evaluation komplexer Interventionen: Implementierung von ARRIBA-Herz☺, einer Beratungsstrategie für die Herz-Kreislaufprävention. ACTA ACUST UNITED AC 2005. [DOI: 10.1055/s-2005-872475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Baum E. Equipment and Education in the subject of General Practice at Universities of Germany. ACTA ACUST UNITED AC 2005. [DOI: 10.1055/s-2005-836308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sönnichsen AC, Donner-Banzhoff N, Baum E. Motive, Berufsziele und Hoffnungen von Studienanfängern im Fach Medizin. ACTA ACUST UNITED AC 2005. [DOI: 10.1055/s-2005-836501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Maisel P, Donner-Banzhoff N, Baum E, Dörr C. [10 minute consultation: chronic fatigue]. MMW Fortschr Med 2004; 146:67-8. [PMID: 15347065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
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Baum E. Management of hypopharyngeal and esophageal perforations in children. Otolaryngol Head Neck Surg 2003. [DOI: 10.1016/s0194-5998(03)00970-7] [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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Pientka L, Baum E, Götte S, Kruse HP, Lüttje D, Pfeilschifter J, Ringe JD. DVO-Leitlinie Osteoporose des älteren Menschen. ACTA ACUST UNITED AC 2003. [DOI: 10.1024/1019-1291.12.2.93] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Scheidt-Nave C, Baum E, Dören M, Hadji P, Keck E, Minne H. DVO-Leitlinie Osteoporose bei postmenopausalen Frauen. ACTA ACUST UNITED AC 2003. [DOI: 10.1024/1019-1291.12.2.63] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Evans SM, Lew R, Kochman ML, Wileyto EP, Baum E, Safford KM, Koch CJ. Human esophageal cancer is distinguished from adjacent esophageal tissue by tissue cysteine concentrations. Dig Dis Sci 2002; 47:2743-50. [PMID: 12498295 DOI: 10.1023/a:1021009322843] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Recent studies have suggested that cysteine, in addition to glutathione, may play a role in the genesis, pathobiology, and treatment response of rodent and human cancers. We examined the relative concentrations of cysteine and glutathione in human esophageal cancer and adjacent, minimally involved esophageal tissue. Small biopsies from tumors and adjacent esophageal tissues were placed into cold acid to allow extraction of low-molecular-mass compounds and simultaneous precipitation of macromolecules. Supernatants were analyzed by high-performance liquid chromatography with electrochemical detection for thiol content. While there was no statistically significant difference between the glutathione content of tumor versus adjacent tissue (2.2 mM vs 2.1 mM, respectively), tumor tissue had significantly higher levels of cysteine than adjacent tissue (0.21 mM vs 0.13 mM, respectively). In conclusion, cysteine content distinguishes tumor from adjacent more normal tissue.
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Donner-Banzhoff N, Beck C, Meyer F, Werner JA, Baum E. Clinical findings in patients presenting with sore throat. A study on inter-observer reliability. Fam Pract 2002; 19:466-8. [PMID: 12356695 DOI: 10.1093/fampra/19.5.466] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Several clinical prediction scores have been developed to help practitioners assess the probability of streptococcal throat infection. Prior to this study, it was not known how reliably doctors assess the signs that contribute to these decision aids. OBJECTIVE The aim of this study was to measure the inter-observer reliability of clinical findings related to sore throat. METHODS Consecutive patients presenting with sore throat in five primary care practices in Germany took part (n = 126). Each patient was assessed independently by two doctors with regard to lymph nodes, pharynx, soft palate and tonsils. RESULTS Agreement among practitioners was not satisfactory. CONCLUSIONS Results suggest that the performance of clinical scoring systems can be improved by training on how to elicit relevant clinical signs. Our findings cast some doubt on the effectiveness of under- and post-graduate training in this area.
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Breborowicz A, Pawlaczyk-Kuzlan M, Pawlaczyk K, Baum E, Tam P, Wu G. Replacement of glucose with N-acetylglucosamine in peritoneal dialysis fluid-experimental study in rats. Perit Dial Int 2002; 21 Suppl 3:S365-7. [PMID: 11887857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Glucose is still used as an osmotic solute in peritoneal dialysis fluids, despite evidence of its local (peritoneal) and systemic toxicities. However a constant search is underway for a new, more biocompatible osmotic solute for peritoneal dialysis fluids. OBJECTIVE The present study evaluated N-acetylglucosamine (NAG) in a concentration of 220 mmol/L as an alternative to glucose for the osmotic solute in peritoneal dialysis fluid, during chronic peritoneal dialysis in rats. METHODS For 8 weeks, male Wistar rats were infused with glucose-based or NAG-based dialysis fluid. Intraperitoneal inflammation and peritoneal permeability and morphology were evaluated in all rats during the study. RESULTS Repeated intraperitoneal infusion of the NAG-based dialysis fluid resulted in a weaker intra-abdominal inflammatory reaction as compared with the reaction in rats infused with glucose-based dialysis solution. At the end of the study, the concentration of hyaluronan in the peritoneal interstitium obtained from NAG-treated rats was higher than that found in the interstitium taken from animals exposed to dialysis fluid containing glucose. Also, peritoneal permeability to total protein was lower in NAG-treated rats. CONCLUSION As an alternative to glucose, NAG used for the osmotic solute in peritoneal dialysis solution decreases the intraperitoneal inflammatory reaction induced by the process of peritoneal dialysis and, indirectly (owing to the increased hyaluronan content in the peritoneal interstitium), diminishes peritoneal permeability to protein.
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Köhnlein H, Purath A, Klemp C, Baum E, Krossing I, Stösser G, Schnöckel H. Synthesis and characterization of an Al(69)(3-) cluster with 51 naked Al atoms: analogies and differences to the previously characterized Al(77)(2-) cluster. Inorg Chem 2001; 40:4830-8. [PMID: 11531428 DOI: 10.1021/ic0104297] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A disproportionation process of a metastable AlCl solution with a simultaneous ligand exchange-Cl is substituted by N(SiMe(3))(2)-leads to a [Al(69)[N(SiMe(3))(2)](18)](3-) cluster compound that can be regarded as an intermediate on the way to bulk metal formation. The cluster was characterized by an X-ray crystal structural analysis. Regarding its structure and the packing within the crystal, this metalloid cluster with 4 times more Al atoms than ligands is compared to the [Al(77)N(SiMe(3))(2)](20)](2-) cluster that has been published four years ago. Although there is a similar packing density of the Al atoms in both clusters as well as in Al metal, the X-ray structural analysis shows significant differences in topology and distance proportions. The differences between these-at a first glance almost identical-Al clusters demonstrate that results of physical measuring, e.g., of nanostructured surfaces which carry supposedly identical cluster species, have to be interpreted with great caution.
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Donchev A, Schnepf A, Stösser G, Baum E, Schnöckel H, Blank T, Wiberg N. [Ga18(SitBu3)8] and [Ga22(SitBu3)8]--syntheses and structural characterization of novel gallium cluster compounds. Chemistry 2001; 7:3348-53. [PMID: 11531121 DOI: 10.1002/1521-3765(20010803)7:15<3348::aid-chem3348>3.0.co;2-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The novel neutral gallium cluster compounds [Ga18R*8] (1) and [Ga22R*8] (2) are obtained by warming up a metastable solution of gallium(I) bromide in THF/C6H5CH3 after addition of equimolar amounts of supersilyl sodium NaR* from -78 degrees C to room temperature (R* = SitBu3 = supersilyl). From X-ray structure analyses, the observed arrangements of the 18 and 22 Ga atoms in 1 and 2, respectively, are comparable with an 18 atom section of the beta-Ga modification, or show at least some kind of relationship to a 22 atom section of the Ga-III modification. This allows a description of both the clusters as metalloid. The topology of the atoms in 2 is also well explained by the Wade-Mingos rules as an eightfold capped closo-Ga14 cluster, whereby the Ga atoms of Ga14 occupy the center and the corners of a cuboctahedron with one Ga3 face replaced by a Ga4 face. Some concepts are presented about the formation mechanism, the cluster growth, and the metalloid character of the two Ga cluster compounds.
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Knolker HJ, Baum E, Reddy KR. Transition metal complexes in organic synthesis, part 59.(1) First enantioselective total synthesis of lavanduquinocin, a potent neuronal cell protecting substance from streptomyces viridochromogenes. Chirality 2000; 12:526-8. [PMID: 10824182 DOI: 10.1002/(sici)1520-636x(2000)12:5/6<526::aid-chir40>3.0.co;2-f] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Using (R)-propene oxide as a chiral building block a convergent enantioselective synthesis of the potent neuronal cell protecting alkaloid lavanduquinocin has been accomplished by the iron-mediated one-pot construction of the carbazole framework.
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Doriat C, Köppe R, Baum E, Stösser G, Köhnlein H, Schnöckel H. Molecular lattice fragment of LiI. Crystal structure and ab initio calculations of [LiI(NEt3)]4. Inorg Chem 2000; 39:1534-7. [PMID: 12526460 DOI: 10.1021/ic9903432] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Numerous crystal structures of donor-stabilized LiX species are known, but only two of them show a heterocubane arrangement [LiX(Do)]4 (X = Cl, Br; Do = donor) in the solid state. Herein we report the X-ray crystal structure of [LiI(NEt3)]4 (1), obtained by the reaction of LiN(SiMe3)2 with either GaI or All in the presence of NEt3. The structural backbone of 1 is a [LiI]4 heterocubane core, which is compared to [LiX]4 (X = Cl, Br) as well as to [Li(CH3)]4. The energetics of the formation of 1 and its stability with respect to solid LiI is rationalized and additionally supported by DFT (density functional theory) calculations.
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Köhnlein H, Stösser G, Baum E, Möllhausen E, Huniar U, Schnöckel H. A Metalloid Al(14) Cluster with the Structure of a "Nano-Wheel". Angew Chem Int Ed Engl 2000; 39:799-801. [PMID: 10760874 DOI: 10.1002/(sici)1521-3773(20000218)39:4<799::aid-anie799>3.0.co;2-b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Keller S, Donner-Banzhoff N, Kaluza G, Baum E, Basler HD. Improving physician-delivered counseling in a primary care setting: lessons from a failed attempt. EDUCATION FOR HEALTH (ABINGDON, ENGLAND) 2000; 13:387-397. [PMID: 14742065 DOI: 10.1080/135762800750059507] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
BACKGROUND The high prevalence of behavioral risk factors for cardiovascular diseases demands innovative approaches to achieving behavior change. Primary care physicians are in an ideal position for offering such interventions. PURPOSE To evaluate whether training of primary care physicians in counseling skills based on the Transtheoretical Model (TTM) leads to motivational and behavioral changes in their patients. METHOD Seventy-four primary care physicians in Germany were randomly assigned to either an intervention condition (one day of training in TTM-based counseling plus brochures matched to their patients' "stages of change") or a control condition (usual care). Baseline and 12-month follow-up data were collected from 305 of their patients who signed up for a health check-up. OUTCOME MEASURE Patients' movements across the stages of change for smoking, diet, exercise and stress management. RESULTS After 12 months, patients of physicians in the intervention group did not show more movement through the stages of change for any of the behaviors than did patients of control physicians. Additionally, there were no differences between groups in counseling frequency, counseling intensity, or patient satisfaction with counseling. CONCLUSIONS A high dropout rate at follow-up and resulting "power" problems limit the possible conclusions. The high numbers of patients in early stages of change and the minimal improvement over time underline the need for improving motivational counseling skills of primary care physicians in Germany. In our study the dissemination of these strategies failed. We offer lessons we feel can be learned from this outcome. Further studies should focus on ways to enhance the process of educating physicians for implementing counseling strategies in primary care settings.
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Abstract
A stereoselective synthesis of the disilyl derivatives 3 is achieved by the title reaction, an unprecedented Lewis acid promoted domino reaction, between the cross-conjugated dienone 1 and the allylsilanes 2. The configurations of the five stereogenic centers of this novel ring system are established in the first step of the reaction sequence, the double [3+2] cycloaddition.
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Barach P, Baum E. Implantable defibrillators, pacemakers, and electronic antitheft devices. N Engl J Med 1999; 340:1117-8. [PMID: 10206833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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