126
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Zahzam N, Vogt T, Mudrich M, Comparat D, Pillet P. Atom-molecule collisions in an optically trapped gas. PHYSICAL REVIEW LETTERS 2006; 96:023202. [PMID: 16486571 DOI: 10.1103/physrevlett.96.023202] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2005] [Indexed: 05/06/2023]
Abstract
Cold inelastic collisions between confined cesium (Cs) atoms and Cs2 molecules are investigated inside a CO2 laser dipole trap. Inelastic atom-molecule collisions can be observed and measured with a rate coefficient of approximately 2.6 x 10(-11) cm3 s(-1), mainly independent of the molecular rovibrational state populated. Lifetimes of purely atomic and molecular samples are essentially limited by rest gas collisions. The pure molecular trap lifetime ranges 0.3-1 s, 4 times smaller than the atomic one, as is also observed in a pure magnetic trap. We give an estimation of the inelastic molecule-molecule collision rate to be approximately 10(-11) cm3 s(-1).
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127
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Rolke R, Rolke S, Vogt T, Birklein F, Treede R, Dieterich M, Letzel S, Völter-Mahlknecht S. Mechanically induced neuropathy in vibration induced vasospastic syndrome. AKTUELLE NEUROLOGIE 2006. [DOI: 10.1055/s-2006-953308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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128
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Hafner C, Koellner K, Vogt T, Landthaler M, Szeimies RM. [Hemorrhagic dengue fever after trip to Malaysia]. Hautarzt 2005; 57:705-7. [PMID: 16283129 DOI: 10.1007/s00105-005-1045-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A 39-year-old patient developed a disseminated rash with scattered petechiae, fever, malaise and arthralgia after a trip to Malaysia. The patient displayed increasing dengue IgG titers and borderline dengue IgM titers. Dengue fever with a hemorrhagic course is a rare condition in adult patients. Patients who have previously had dengue fever and retained non-neutralizing heterotypic antibodies are more likely to develop this complication via the phenomenon of antibody-dependent enhancement.
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129
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Meyer S, Zanardo L, Kaminski WE, Horn P, Schmitz G, Hohenleutner U, Herrmann WA, Landthaler M, Vogt T. Elastosis perforans serpiginosa-like pseudoxanthoma elasticum in a child with severe Moya Moya disease. Br J Dermatol 2005; 153:431-4. [PMID: 16086762 DOI: 10.1111/j.1365-2133.2005.06658.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A 2-year-old girl with Moya Moya disease who had relapsing cerebrovascular strokes presented with loose skin folds, 'chicken' skin appearance and perforating elastosis serpiginosa-like lesions in the genitocrural region. Histologically, calcified material perforating the epidermis and adjacent short curled and mineralized elastic fibres suggested a variant of pseudoxanthoma elasticum (PXE). As PXE is known to be caused by various mutations in the transmembrane transporter ABCC6 gene, we hypothesized that a novel ABCC6 mutation may underlie this unique combination of PXE and elastopathic vascular damage. Therefore, the complete ABCC6 coding region of the patient and her parents was screened for genetic alterations. No bona fide disease-causing mutation of ABCC6 could be found in the child and in her parents. However, two novel allelic amino acid substitutions (Arg1273Lys and Glu1293Lys; exon 27) were found in the girl and her father, localized in close proximity to the region that codes for the functionally critical second nucleotide-binding fold of ABCC6. Although a causal involvement of these amino acid substitutions could not be proven based on this study, both heterozygote substitutions may possibly have interacted with other undetected recessive maternal ABCC6 changes in the child. To the best of our knowledge, this is the first report of an association between early-onset PXE and severe Moya Moya syndrome possibly related to ABCC6 changes.
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130
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Colligan M, Hriljac J, Vogt T, Lee Y. High pressure X-ray diffraction studies of purely siliceous zeolites. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305080633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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131
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Meyer S, Naumann L, Landthaler M, Vogt T. Lupus vulgaris caused by Mycobacterium bovis ssp. caprae. Br J Dermatol 2005; 153:220-2. [PMID: 16029364 DOI: 10.1111/j.1365-2133.2005.06673.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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132
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Reichle A, Vogt T, Coras B, Bross K, Terhheyden P, Neuber K, Trefzer U, Schultz E, Fischer von Weikersthal L, Andreesen R. Metronomic chemotherapy plus/minus antiinflammatory treatment in far-advanced melanoma: A randomized multi-institutional phase II trial. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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133
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134
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Hafner C, Linde HJ, Vogt T, Breindl G, Tintelnot K, Koellner K, Landthaler M, Szeimies RM. Primary cutaneous cryptococcosis and secondary antigenemia in a patient with long-term corticosteroid therapy. Infection 2005; 33:86-9. [PMID: 15827877 DOI: 10.1007/s15010-005-4095-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Accepted: 09/29/2004] [Indexed: 11/25/2022]
Abstract
We report a case of a 71-year-old male who developed severe cellulitis of his right forearm and hand after he had an accidental injury from the sharp edge of a metal plate of a birdhouse. The patient suffers from chronic asthma and has been treated with systemic corticosteroids for years. Culture of aspirates from two sites of the wound area revealed growth of Cryptococcus neoformans in one and Acinetobacter lwoffii in the other. After combined treatment including antibiotics, antifungal therapy with fluconazole 400 mg/d and surgical debridement followed by a mesh graft, the patient achieved complete healing of the wound. Five months after the infection, the patient was still positive for cryptococcal antigen at a titer of 1:64 despite oral treatment with fluconazole 50 mg/d, and maintenance therapy with fluconazole 200 mg/d was recommended for 6 months, or longer depending on further results. The clinical and microbiological characteristics of this patient as well as therapeutical and epidemiological aspects of primary cutaneous cryptococcosis (PCC) are discussed.
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Abstract
In the recent years there has been increasing interest in herbal therapy including its use for treatment of dermatologic disorders. In Germany, a regulatory authority known as "Commission E" performed an extensive review of common phytotherapeutic (1987-1995) agents indicating quality of evidence, clinical efficacy and therapeutic usefulness producing a "positive monograph" indicating agents supported by evidence and likely to be useful. This article explores the therapeutic use of several of these and other currently popular plants suitable for dermatologic indications; therapeutic hints including phytotherapeutic products and formulations are given and side effects, in particular toxic and allergic skin reactions, are discussed.
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136
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Meyer S, Burgdorff T, Szeimies RM, Vogt T, Landthaler M, Karrer S. Management of erosive lichen planus with topical tacrolimus and recurrence secondary to metoprolol. J Eur Acad Dermatol Venereol 2005; 19:236-9. [PMID: 15752301 DOI: 10.1111/j.1468-3083.2004.01116.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Metoprolol, a widely prescribed beta-adrenergic receptor blocker, has occasionally been associated with a diversity of cutaneous reactions. We present a 79-year-old male patient with erosive lichen planus (LP) on the feet and hands who was successfully treated with topical tacrolimus. Six months after the lesions had been cured the patient received the beta-receptor blocker metoprolol for the treatment of hypertonus. Within only 2 weeks of metoprolol intake the erosive lesions on the palms and feet recurred. After discontinuation of the drug and repetitive topical treatment with tacrolimus a complete remission of the lesions could be achieved. The recurrence of erosive LP probably secondary to metoprolol and the therapeutic success of topical tacrolimus in the treatment of LP are discussed.
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Chikaev NA, Bykova EA, Najakshin AM, Mechetina LV, Volkova OY, Peklo MM, Shevelev AY, Vlasik TN, Roesch A, Vogt T, Taranin AV. Cloning and characterization of the human FCRL2 gene. Genomics 2005; 85:264-72. [PMID: 15676285 DOI: 10.1016/j.ygeno.2004.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2004] [Accepted: 10/30/2004] [Indexed: 10/26/2022]
Abstract
We report cloning and characterization of FCRL2, a novel human gene that belongs to the FcR family. The gene is closely linked and structurally similar to the recently identified FCRL/FREB/FcRX gene. The encoded protein is composed of three Ig-like domains and a C-terminal mucin-like domain containing a conserved alpha-helical motif with dileucine signals. Intraexonic splicing may generate two alternative transcripts, coding for isoforms with the third and fourth domains replaced by entirely different amino acid sequences. Like FCRL, the full-length isoform of FCRL2 is expressed intracellularly in transfected 293T cells. Expression analysis revealed FCRL2 mRNA only in placenta. The gene transcripts were not detected in lymphoid tissues or in the main leukocyte subsets isolated from peripheral blood. However, we found that FCRL2 is differentially expressed by transformed B cell lines. Of interest is also the finding that the gene expression may be up-regulated in the progression of melanocytic tumors.
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138
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Bongartz T, Härle P, Friedrich S, Karrer S, Vogt T, Seitz A, Müller-Ladner U. Successful treatment of psoriatic onycho-pachydermo periostitis (POPP) with adalimumab. ACTA ACUST UNITED AC 2005; 52:280-2. [PMID: 15641098 DOI: 10.1002/art.20763] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Psoriatic onycho-pachydermo periostitis (POPP) is recognized as a rare subset of psoriatic arthritis, characterized by psoriatic onychodystrophy, connective tissue thickening above the distal phalanx, and a periosteal reaction. Therapy for this rare disease is based on treatments used for psoriatic arthritis, but traditional disease-modifying antirheumatic drugs, such as sulfasalazine and methotrexate, have shown inconsistent and unsatisfactory results. We report herein a successful therapeutic approach for POPP using the fully human anti-tumor necrosis factor (TNF) antibody adalimumab in a 42-year-old male patient. After 4 months of anti-TNF treatment, a remarkable normalization of the clinical appearance was achieved and magnetic resonance imaging showed complete resolution of the initial inflammatory lesions. Therefore, we consider a TNF-blocking strategy as promising for treatment of POPP.
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Bongartz T, Coras B, Vogt T, Schölmerich J, Müller-Ladner U. Treatment of active psoriatic arthritis with the PPARgamma ligand pioglitazone: an open-label pilot study. Rheumatology (Oxford) 2004; 44:126-9. [PMID: 15479756 DOI: 10.1093/rheumatology/keh423] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Psoriatic arthritis (PsA) is an inflammatory joint disease, in which early neovascularization of affected skin and synovial tissue represents an important pathogenetic step in the disease process. Activation of the peroxisome proliferator activated receptor gamma (PPARgamma) showed anti-inflammatory effects in several in vitro and in vivo models (e.g. collagen-induced arthritis) by inhibition of angiogenesis and suppression of proinflammatory cytokines. Therefore, we studied the use of pioglitazone, a PPARgamma agonist originally developed for the treatment of diabetes, in patients with PsA. METHODS Ten patients with active PsA, seven males and three females, who showed at least two tender and two swollen joints despite stable treatment with an NSAID, were enrolled in this open-label study. All patients received a daily dose of 60 mg pioglitazone while continuing their current NSAID therapy. The primary endpoint was the PsARC (Psoriatic Arthritis Response Criterion); the secondary endpoints included the ACR20 response and improvement in the Psoriasis Area and Severity Index (PASI) in patients with more than 2% skin involvement. Patients were evaluated for endpoints at baseline and after 12 weeks. RESULTS After 12 weeks, six of 10 patients met the PsARC. The ACR20 response was achieved in five patients. The mean percentage reduction in PASI was 38%, with a clinically meaningful PASI 50 response in two of six patients. Median tender joint count (interquartile range) decreased from 12.0 (8.0-18.0) to 4.0 (2.0-10.0), and the median swollen joint count from 5.0 (4.0-8.0) to 2.0 (1.0-7.0) (P<0.05 for both). Median Health Assessment Questionnaire score changed from 1.0 (0.375-1.375) to 0.75 (0.375-1.0) (P<0.05). Three patients had to be withdrawn from the study due to inefficacy and side-effects. Major side-effects were oedema of the lower extremities and increase in weight. CONCLUSIONS Treatment with a PPARgamma agonist appears to be a promising therapeutic principle in PsA, but the use of PPARgamma ligands might be limited by side-effects such as increase in weight and fluid retention.
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140
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Haegele S, Vogt T, Claus D, Birklein F. Pathological Pulse Wave Latency as a Surrogate of Sympathetic Adrenergic Failure in Patients with Idiopathic and Atypical Parkinson Syndromes. KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-831999] [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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141
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Hafner C, Coras B, Reichle A, Landthaler M, Vogt T. Antiangiogenetische Therapie mit Pioglitazon, Rofecoxib und metronom appliziertem Trofosfamid bei fortgeschrittenen vaskulären und melanozytären Tumorerkrankungen. AKTUELLE DERMATOLOGIE 2004. [DOI: 10.1055/s-2004-832495] [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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142
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Meyer S, Kroiss M, Landthaler M, Vogt T. Rezidivierende Schübe eines Pemphigus vulgaris in Assoziation mit Rezidiven eines malignen Melanoms bei bekannter Myasthenia gravis und Thymomerkrankung. AKTUELLE DERMATOLOGIE 2004. [DOI: 10.1055/s-2004-832549] [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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143
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Becker B, Roesch A, Hafner C, Stolz W, Landthaler M, Vogt T. Re-expression of Dipeptidylpeptidase 4 (DPP4) in melanoma cells – insights into molecular consequences. AKTUELLE DERMATOLOGIE 2004. [DOI: 10.1055/s-2004-832592] [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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144
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Roesch A, Becker B, Landthaler M, Vogt T. Wachstumszonen-assoziierte Inaktivierung des Tumorsuppressors Retinoblastom Protein (pRb) durch eine gesteigerte Proteinphosphorylierung in malignen Melanomen. AKTUELLE DERMATOLOGIE 2004. [DOI: 10.1055/s-2004-832586] [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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145
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Coras B, Hafner C, Reichle A, Landthaler M, Vogt T. Antiangiogenetische Therapie mit Pioglitazone, Rofecoxib und Trofosfamid beim endemischem Kaposi-Sarkom. AKTUELLE DERMATOLOGIE 2004. [DOI: 10.1055/s-2004-832547] [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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146
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Becker B, Multhoff G, Farkas B, Wild PJ, Landthaler M, Stolz W, Vogt T. Induction of Hsp90 protein expression in malignant melanomas and melanoma metastases. Exp Dermatol 2004; 13:27-32. [PMID: 15009113 DOI: 10.1111/j.0906-6705.2004.00114.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The heat-shock protein Hsp90 has been shown to be essential for the functional integrity of the telomerase complex. The telomerase activity is enhanced in melanoma and stabilizes the chromosomal integrity in proliferating cells. Furthermore, overexpression of Hsp90 induces silencing of point mutations in transcription factors which, otherwise, would result in a loss-of-function phenotype. In melanocytic lesions there is a higher risk of mutations caused by the enhanced proliferation in melanocytic cells. By analyzing microdissected melanocytic tumors by semiquantitative PCR, we demonstrate an overexpression of Hsp90 mRNA in malignant melanomas (10/14) and in melanoma metastases (6/6) as well as in melanoma cell lines (9/9) when compared with melanocytic nevi (2/9). These results could be confirmed on protein level by immunohistochemistry. While melanocytic nevi show discrete Hsp90 expression only in a minor fraction (2/9), malignant melanomas and metastases show a positive Hsp90 immunohistochemistry in the majority of cases; (7/9) and (13/14), respectively. In addition, by analyzing melanoma metastases by flow cytometry we show that Hsp90 is expressed on the surface of tumor cells (7/8). From these data we conclude that Hsp90 is present in advanced malignant melanomas and may have a stabilizing effect on the cellular functions in proliferating cells of melanocytic lesions and could thereby be a prerequisite for the tumor progression. As Hsp90 is expressed on the cell surface, it might also be a potential immunorelevant target structure for immunotherapy of melanoma.
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147
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Haegele S, Vogt T, Claus D, Birklein F. Pathologische Pulswellenlatenzdifferenz bei Parkinson-Patienten als Ausdruck pathologischer Kreislaufregulation. AKTUELLE NEUROLOGIE 2004. [DOI: 10.1055/s-2004-823159] [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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148
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Jeong IK, Darling TW, Graf MJ, Proffen T, Heffner RH, Lee Y, Vogt T, Jorgensen JD. Role of the lattice in the gamma-->alpha phase transition of Ce: a high-pressure neutron and x-ray diffraction study. PHYSICAL REVIEW LETTERS 2004; 92:105702. [PMID: 15089217 DOI: 10.1103/physrevlett.92.105702] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2003] [Indexed: 05/24/2023]
Abstract
The temperature and pressure dependence of the thermal displacements and lattice parameters were obtained across the gamma-->alpha phase transition of Ce using high-pressure, high-resolution neutron and synchrotron x-ray powder diffraction. The estimated vibrational entropy change per atom in the gamma-->alpha phase transition, DeltaS(gamma-alpha)(vib) approximately (0.75+/-0.15)k(B), is about half of the total entropy change. The bulk modulus follows a power-law pressure dependence that is well described using the framework of electron-phonon coupling. These results clearly demonstrate the importance of lattice vibrations, in addition to the spin and charge degrees of freedom, for a complete description of the gamma-->alpha phase transition in elemental Ce.
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149
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Nguyen-Huu BK, Fritz G, Horn S, Herr M, Koch D, Vogt T, Hundsberger T. Expression of the Rac1 GTPase and its splice variant Rac1b in human glioblastomas. AKTUELLE NEUROLOGIE 2004. [DOI: 10.1055/s-2004-833346] [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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150
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Seta S, Herr M, Horn S, Koch D, Vogt T, Hundsberger T. The role of Rho-family GTPases in human glioblastomas. AKTUELLE NEUROLOGIE 2004. [DOI: 10.1055/s-2004-833345] [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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