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Andreas Altenburg

andreas.altenburg@charite.de

Journal articles

2008
 
DOI   
PMID 
Krause, Köhler, Altenburg, Papoutsis, Zouboulis, Pleyer, Stroux, Foerster (2008)  Ocular involvement is associated with HLA-B51 in Adamantiades-Behçet's disease.   Eye Jun  
Abstract: PurposeTo evaluate the association of HLA-B51 and ocular involvement in Adamantiades-Behçet's disease.MethodsWe retrospectively analysed all patients with Adamantiades-Behçet's disease examined in our Department of Ophthalmology since 1982. All patients fulfilled the criteria of the International Study Group for Behçet's disease. We included 140 patients (63 female and 77 male) with a mean follow-up of 6.4 years.ResultsThe mean age at the first manifestation was 23 years; full disease was noted at 32 years. The mean age at the time of eye involvement was 30 years. Most of the patients were of Turkish (n=73) or German (n=34) origin. A total of 56% patients developed eye involvement. Forty-nine out of 76 HLA-B51-positive patients (64.5%) and 26 out of 60 HLA-B51-negative patients (43.3%; P=0.014) developed ocular involvement.ConclusionMore than the half of the patients with Adamantiades-Behçet's disease evaluated in our department developed ocular involvement. There was a statistically significantly higher frequency of HLA-B51 in these patients.Eye advance online publication, 13 June 2008; doi:10.1038/eye.2008.177.
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DOI   
PMID 
Dieter Krahl, Andreas Altenburg, Christos C Zouboulis (2008)  Reactive hyperplasias,precancerous and malignant lesions of the oral mucosa.   J Dtsch Dermatol Ges 6: 3. 217-232 Mar  
Abstract: The oral cavity contains many organs and tissues compressed in a small area. Accordingly oral tumors have a wide variety of appearances. Reactive hyper-plastic lesions include epulis,morsicatio,traumatic ulcer or palatal hyperplasia. These benign lesions must be separated clinically and histologically from precancerous and neoplastic lesions. In leukoplakia,the individual risk can be estimated by clinical signs. Nevertheless histopathology is mandatory because precancerous lesions usually precede or accompany most oral cancers. Amalgam tattoo,oral nevi and melanoacanthoma have to be considered as differential diagnoses of oral melanoma. Accurate clinico-pathological diagnosis is mandatory to insure appropriate therapy. Oral soft tissue tumors such as Kaposi sarcoma and multiple mucosal neuromas in MEN 2b require interdisciplinary management. Diseases affecting the minor salivary glands which may be encountered by dermatologists include mucocele, necrotizing sialometa-plasia,and tumors such as pleomorphic adenoma.
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PMID 
Lothar Krause, Andreas Altenburg, Uwe Pleyer, Anne-Katrin Köhler, Christos C Zouboulis, Michael H Foerster (2008)  Longterm visual prognosis of patients with ocular adamantiades-Behçet's disease treated with interferon-alpha-2a.   J Rheumatol 35: 5. 896-903 May  
Abstract: OBJECTIVE: Relapsing ocular involvement is one of the major manifestations in Adamantiades-Behçet's disease (ABD). Combining systemic corticosteroids with cyclosporin A is currently the treatment of choice. Interferon-alpha (IFN-alpha) has proven to be effective in mucocutaneous ABD and has been reported to improve ocular lesions. We examined the longterm effects of IFN-alpha-2a in a case series of 45 patients with ocular involvement. METHODS: Since 1988, 45 patients (79 eyes of 90 eyes) with ocular involvement in ABD have been treated with IFN-alpha (3 x 6-9 Mio IU per wk). In the initial acute phase of the disease, patients additionally received short-term corticosteroids (oral prednisolone 100 mg/day), tapered to a maintenance dose of 10 mg/day within 2 weeks. IFN-alpha-2a was administered as longterm therapy with a mean duration of 30 months (range 1.1-101 mo). RESULTS: IFN-alpha-2a/prednisolone treatment was effective against vasculitis, optic nerve neuropathy, and iritis. Sixty-four eyes had no recurrence under therapy. To date, recurrences have been seen in 26 eyes under IFN-alpha treatment. Flu-like symptoms were recorded in nearly all patients (n = 43). Further side effects were dose-dependent reversible thrombocytopenia (n = 1), psychosis (n = 3), depression (n = 13), thyroiditis (n = 1), and reversible diffuse alopecia (n = 7). In our series, 92% of all eyes showed stable or improved visual acuity in longterm followup. CONCLUSION: Longterm remission of ocular inflammation can be achieved with the combination of IFN-alpha and low-dose corticosteroids.
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2007
 
DOI   
PMID 
Lothar Krause, Andreas Altenburg, Nikolaos E Bechrakis, Gregor Willerding, Christos C Zouboulis, Michael H Foerster (2007)  Intraocular surgery under systemic interferon-alpha therapy in ocular Adamantiades-Behçet's disease.   Graefes Arch Clin Exp Ophthalmol 245: 11. 1617-1621 Nov  
Abstract: BACKGROUND: Adamantiades-Behçet's disease (ABD) is a multi-system disorder with recurrent oral and/or genital ulcerations, skin lesions and ocular involvement. Eye involvement is a common manifestation that affects the patients' quality of life more than any other. Left untreated, it leads to blindness and often to loss of the eye through secondary complications like phthisis or painful glaucoma. In some cases, such as tractional retinal detachment, secondary glaucoma or secondary cataract formation, intraocular surgery is required. METHODS: A prospective study of patients with ocular ABD who underwent intraocular surgery under systemic treatment with interferon-alpha was conducted. From 1999 to 2005, we treated eight eyes from five patients with pars plana vitrectomy (n = 1), phacoemulsification (n = 6) and trabeculectomy (n = 1). The mean follow-up was 49 months (range 5-94 months). RESULTS: Seven out of eight eyes had better visual acuity following surgery. One eye did not benefit from cataract surgery because of optic nerve atrophy. Only one eye showed prolonged inflammation following phacoemulsification. None of the patients showed a recurrence during follow-up. The failure of conservative glaucoma treatment necessitated trabeculectomy in one eye; the patient has had no further recurrence for 6 years under monotherapy with interferon-alpha. CONCLUSION: Interferon-alpha is a potent therapy for Adamantiades-Behçet's disease with ocular involvement. It also provides a basis for safe and reliable surgical interventions. In seven of eight eyes, there was no intra- or peri-operative recurrence of inflammation, which is a common complication after these procedures. Only one eye showed acute and prolonged inflammation following cataract surgery.
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DOI   
PMID 
A Altenburg, M B Abdel-Naser, H Seeber, M Abdallah, C C Zouboulis (2007)  Practical aspects of management of recurrent aphthous stomatitis.   J Eur Acad Dermatol Venereol 21: 8. 1019-1026 Sep  
Abstract: Treatment of recurrent aphthous stomatitis (RAS) remains, to date, empirical and non-specific. The main goals of therapy are to minimize pain and functional disabilities as well as decrease inflammatory reactions and frequency of recurrences. Locally, symptomatically acting modalities are the standard treatment in simple cases of RAS. Examples include topical anaesthetics and analgesics, antiseptic and anti-phlogistic preparations, topical steroids as cream, paste or lotions, antacids like sucralfate, chemically stable tetracycline suspension, medicated toothpaste containing the enzymes amyloglucosidase and glucoseoxidase in addition to the well-known silver nitrate application. Dietary management supports the treatment. In more severe cases, topical therapies are again very useful in decreasing the healing time but fail to decrease the interval between attacks. Systemic immunomodulatory agents, like colchicine, pentoxifylline, prednisolone, dapsone, levamisol, thalidomide, azathioprine, methotrexate, cyclosporin A, interferon alpha and tumour necrosis factor (TNF) antagonists, are helpful in resistant cases of major RAS or aphthosis with systemic involvement.
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2006
1999
 
PMID 
A Altenburg, S E Baldus, H Smola, H Pfister, S Hess (1999)  CD40 ligand-CD40 interaction induces chemokines in cervical carcinoma cells in synergism with IFN-gamma.   J Immunol 162: 7. 4140-4147 Apr  
Abstract: Cellular immunity plays a major role in controlling human papilloma virus infection and development of cervical carcinoma. Mononuclear cell infiltration possibly due to the action of chemokines becomes prominent in the tumor tissue. In fact, the macrophage chemoattractant protein-1, MCP-1, was detected in cervical squamous cell carcinoma in situ, whereas absent in cultured cells. From this, unknown environmental factors were postulated regulating chemokine expression in vivo. In this study, we show high CD40 expression on cervical carcinoma cells and CD40 ligand (CD40L) staining on attracted T cells in tumor tissue, suggesting a paracrine stimulation mechanism via CD40L-CD40 interactions. We therefore investigated chemokine synthesis in nonmalignant and malignant human papilloma virus-positive cell lines after CD40L exposure. Constitutive expression of MCP-1, MCP-3, RANTES, and IFN-gamma-inducible protein-10 was almost undetectable in all cell lines tested. CD40L was able to induce MCP-1 production; however, despite much higher CD40 expression in malignant cells, MCP-1 induction was significantly lower compared with nontumorigenic cells. After sensitization with IFN-gamma, another T cell-derived cytokine showing minimal effects on CD40 expression levels, CD40 ligation led to a more than 20-fold MCP-1 induction in carcinoma cell lines. An even stronger effect was observed for IFN-gamma-inducible protein-10. Our study highlights the synergism of T cell-derived mediators such as CD40L and IFN-gamma for chemokine responses in cervical carcinoma cells, helping to understand the chemokine expression patterns observed in vivo.
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