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Wahl DA, Cooper C, Ebeling PR, Eggersdorfer M, Hilger J, Hoffmann K, Josse R, Kanis JA, Mithal A, Pierroz DD, Stenmark J, Stöcklin E, Dawson-Hughes B. A global representation of vitamin D status in healthy populations: reply to comment by Saadi. Arch Osteoporos 2013; 8:122. [PMID: 23371520 DOI: 10.1007/s11657-013-0122-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 01/18/2013] [Indexed: 02/03/2023]
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Henrich D, Hoffmann K, Schmidt T. New Dry Electrodes with Comparable Performance as Standard Electrodes. BIOMED ENG-BIOMED TE 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-E/bmt-2013-4136/bmt-2013-4136.xml. [DOI: 10.1515/bmt-2013-4136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Moeller K, Esser D, Boeger D, Buentzel J, Hoffmann K, Jecker P, Mueller A, Radtke G, Piesold JU, Schultze-Mosgau S, Finkensieper M, Bitter T, Guntinas-Lichius O. Parotidectomy and submandibulectomy for benign diseases in Thuringia, Germany: a population-based study on epidemiology and outcome. Eur Arch Otorhinolaryngol 2012; 270:1149-55. [PMID: 23073736 DOI: 10.1007/s00405-012-2225-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 10/07/2012] [Indexed: 01/13/2023]
Abstract
Although salivary gland surgery for benign diseases is an integral part of clinical routine of head and neck surgeons, there is not many population-based data published on incidence and efficiency of this surgery. Parotidectomy was performed in 180 patients and submandibulectomy in 97 patients for benign diseases in eight otorhinolaryngology and two maxillofacial surgery departments in Thuringia, Germany, in 2005. All patients were analysed regarding patients' characteristics, therapy, complications and further course of disease. Predominant indications were epithelial tumours for parotidectomy (79 %) and sialolithiasis for submandibulectomy (50 %). The most frequent tumour types were pleomorphic adenoma (46 %) and Warthin tumours (29 %). Pleomorphic adenoma was significantly more frequent in female patients and Warthin tumours in male patients and smokers. The incidence of parotidectomy, i.e. the surgical rate, was 7.8/100,000 habitants and of submandibulectomy 4.1/100,000 habitants. One hundred and seventy-eight tumours including 154 epithelial tumours resulted in an incidence of 7.6/100,000 habitants for all treated tumours and of 6.6/100,000 for epithelial tumours, respectively. The majority of parotid cases were treated by lateral parotidectomy (79 %). Relevant complications were observed in 22 % of patients. After parotidectomy and submandibulectomy a postoperative facial palsy was observed in 28 and 2 % of cases, respectively. Only 1 % was permanent. During a mean follow-up time of 9.6 months, 3 % of parotidectomy patients developed a Frey's syndrome needing treatment and 0.8 % developed a tumour recurrence. This population-based analysis shows that salivary gland surgery is performed in higher incidence than expected, effectively and with low-risk in daily routine of head and neck surgeons.
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Mühle M, Bleiholder A, Hoffmann K, Löchelt M, Denner J. Novel strategies for HIV-1 epitope delivery using foamy viral hybrid proteins and vectors. Retrovirology 2012. [PMCID: PMC3441429 DOI: 10.1186/1742-4690-9-s2-p321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Wahl DA, Cooper C, Ebeling PR, Eggersdorfer M, Hilger J, Hoffmann K, Josse R, Kanis JA, Mithal A, Pierroz DD, Stenmark J, Stöcklin E, Dawson-Hughes B. A global representation of vitamin D status in healthy populations. Arch Osteoporos 2012; 7:155-72. [PMID: 23225293 DOI: 10.1007/s11657-012-0093-0] [Citation(s) in RCA: 220] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 08/06/2012] [Indexed: 02/06/2023]
Abstract
PURPOSE This paper visualizes the available data on vitamin D status on a global map, examines the existing heterogeneities in vitamin D status and identifies research gaps. METHODS A graphical illustration of global vitamin D status was developed based on a systematic review of the worldwide literature published between 1990 and 2011. Studies were eligible if they included samples of randomly selected males and females from the general population and assessed circulating 25-hydroxyvitamin D [25(OH)D] levels. Two different age categories were selected: children and adolescents (1-18 years) and adults (>18 years). Studies were chosen to represent a country based on a hierarchical set of criteria. RESULTS In total, 200 studies from 46 countries met the inclusion criteria, most coming from Europe. Forty-two of these studies (21 %) were classified as representative. In children, gaps in data were identified in large parts of Africa, Central and South America, Europe, and most of the Asia/Pacific region. In adults, there was lack of information in Central America, much of South America and Africa. Large regions were identified for which the mean 25(OH)D levels were below 50 nmol/L. CONCLUSIONS This study provides an overview of 25(OH)D levels around the globe. It reveals large gaps in information in children and adolescents and smaller but important gaps in adults. In view of the importance of vitamin D to musculoskeletal growth, development, and preservation, and of its potential importance in other tissues, we strongly encourage new research to clearly define 25(OH)D status around the world.
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Hoffmann K, Murshed MM, Fischer RX, Gesing TM. Synthesis and high-temperature characterization of mullite-type (Al 1−xGa x) 4B 2O 9. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312096134] [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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Thomas H, Helal A, Hoffmann K, Kandadai N, Keto J, Andreasson J, Iwan B, Seibert M, Timneanu N, Hajdu J, Adolph M, Gorkhover T, Rupp D, Schorb S, Möller T, Doumy G, DiMauro LF, Hoener M, Murphy B, Berrah N, Messerschmidt M, Bozek J, Bostedt C, Ditmire T. Explosions of xenon clusters in ultraintense femtosecond x-ray pulses from the LCLS free electron laser. PHYSICAL REVIEW LETTERS 2012; 108:133401. [PMID: 22540697 DOI: 10.1103/physrevlett.108.133401] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 10/21/2011] [Indexed: 05/31/2023]
Abstract
Explosions of large Xe clusters (<N> ~ 11,000) irradiated by femtosecond pulses of 850 eV x-ray photons focused to an intensity of up to 10(17) W/cm(2) from the Linac Coherent Light Source were investigated experimentally. Measurements of ion charge-state distributions and energy spectra exhibit strong evidence for the formation of a Xe nanoplasma in the intense x-ray pulse. This x-ray produced Xe nanoplasma is accompanied by a three-body recombination and hydrodynamic expansion. These experimental results appear to be consistent with a model in which a spherically exploding nanoplasma is formed inside the Xe cluster and where the plasma temperature is determined by photoionization heating.
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Seyring C, Bitter T, Böger D, Büntzel J, Eßer D, Hoffmann K, Jecker P, Müller A, Radtke G, Guntinas-Lichius O. [Health services research on paranasal sinus surgery in Thuringia: epidemiologic key data and outcome]. Laryngorhinootologie 2012; 91:434-9. [PMID: 22407511 DOI: 10.1055/s-0032-1304592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Although modern minimal-invasive paranasal sinus surgery is an integral part of clinical routine of otorhinolaryngologic surgeons, there are no population-based data on incidence and efficiency of this surgery published. MATERIAL AND METHODS 1,582 patients underwent paranasal sinus surgery in the 8 Thuringian departments of otorhinolaryngology in 2005. All patients were analysed regarding patients' characteristics, therapy, complications and further course of disease. RESULTS The incidence of paranasal sinus surgery was 46/100,000 for women and higher for men with 72/100,000. Median age was 48 years. Chronic sinusitis was the main reason for surgery (94%; including 33% with nasal polyps) and was performed dominantly as endoscopic sinus surgery (96%). Surgery was performed bilaterally in 75% of the cases and as primary surgery. In most cases at least 2 paranasal sinuses per side were approached. Relevant complications were observed in 4% of patients. During the follow-up time of 45-51 months a recurrence was observed in 9% of cases. Using a multivariate regression analysis, revision surgery, allergic subject and diagnosis of a malignant tumor were significant independent risk factors to predict a recurrence. Older age and longer time of surgery were significant independent risk factors for a complication. CONCLUSION This population based analysis is showing that modern paranasal sinus surgery is performed in high incidence, effectively and with low-risk on a large scale in daily routine of rhinologic surgeons.
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Krogias C, Hoffmann K, Norra C, Eyding J, Scheele D, Gold R, Juckel G, Assion HJ. Transkranielle Sonographie des Hirnparenchyms bei bipolarer Störung. Vergleich zu Gesunden sowie innerhalb von Subgruppen der Erkrankung. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301663] [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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Behnke T, Laux EM, Hoffmann K, Peters S, Haueisen J, Klemm M, Resch-Genger U. Simple Approaches to Fluorescence Lifetime Standards Using Dye-Quencher Pairs. BIOMED ENG-BIOMED TE 2012. [DOI: 10.1515/bmt-2012-4499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Haussleiter IS, Emons B, Hoffmann K, Jendreyschak J, Schramm A, Schaub M, Richter S, Armgart C, Illes F, Juckel G. Drug prescription patterns in psychiatric inpatients. PHARMACOPSYCHIATRY 2011. [DOI: 10.1055/s-0031-1292494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yarmoliuk T, Hoffmann K. Gesunde Mitarbeiter durch gesunde Führung: Was denken Führungskräfte über die Gesundheit ihrer Mitarbeiter? DAS GESUNDHEITSWESEN 2011. [DOI: 10.1055/s-0031-1283688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Bechara F, Mannherz H, Jacob M, Mazur A, Sand M, Altmeyer P, Hoffmann K. Induction of fat cell necrosis in human fat tissue after treatment with phosphatidylcholine and deoxycholate. J Eur Acad Dermatol Venereol 2011; 26:180-5. [DOI: 10.1111/j.1468-3083.2011.04028.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Harter PN, Bunz B, Dietz K, Hoffmann K, Meyermann R, Mittelbronn M. Spatio-temporal deleted in colorectal cancer (DCC) and netrin-1 expression in human foetal brain development. Neuropathol Appl Neurobiol 2011; 36:623-35. [PMID: 20609112 DOI: 10.1111/j.1365-2990.2010.01100.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AIMS Deleted in colorectal cancer (DCC) and its ligand netrin-1 are known as axonal guidance factors, being involved in angiogenesis, migration and survival of precursor cells in the embryonic mammalian central nervous system (CNS). So far, little is known about the distribution of those molecules in human CNS development. METHODS We investigated 22 human foetal brain specimens (12th and 28th week of gestation) for DCC and netrin-1 expression by means of immunohistochemistry, immunofluorescence and confocal laser microscopy. Statistical analysis was performed by applying a semi-quantitative score, including staining intensity and frequency and correlation with foetal age. RESULTS DCC and netrin-1 were differentially expressed throughout the developing human foetal telencephalic and cerebellar cortical layers. Netrin-1 exhibited the highest levels in telencephalic germinal layers, whereas the strongest DCC immunoreactivity was seen in the developing cortical plate. Netrin-1 and DCC were predominantly present on cerebellar external granule layer cells. Distinct co-expression was seen in maturing foetal brainstem nuclei, cerebellar external granular layer and the choroid plexus. In contrast, endothelial cells showed strong netrin-1 expression with subsidiary DCC immunoreactivity. Pontine and telencephalic axonal fibre tracts also demonstrated strong netrin-1 expression. CONCLUSIONS We show that DCC and netrin-1 are ubiquitously expressed in the human foetal brain; however, both exhibit a distinct spatio-temporal expression pattern. Together with the data from animal experiments, our findings might indicate also an important role for DCC and netrin-1 in human foetal CNS development.
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Hoffmann K, Kretschmar B, Buller V, Kermer P. Craniopharyngioma resulting in pituitary gland insufficiency and coma in an adult with intellectual disability and severe challenging behavior. J Neuropsychiatry Clin Neurosci 2011; 22:451-j.e18-451.e19. [PMID: 21037142 DOI: 10.1176/jnp.2010.22.4.451.e18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
A new treatment variation in the spectrum of aesthetic medicine has been investigated worldwide since 2004: so-called injection lipolysis. Advances in knowledge regarding the efficacy and mechanism of action have been achieved especially in Germany because most users are found in Germany when compared on an international level. The reason for this is that the combination of phosphatidylcholine and deoxycholic acid as active substances has been approved for i.v. treatment of fat embolisms. It is thus readily available, but the subcutaneous injection of the drug Lipostabil N® is considered as off-label use. Meanwhile injection lipolysis has become an integral component for many in the practice of aesthetic medicine. The international association of physicians performing lipolysis in the so-called NETWORK-Lipolysis (with more than 2,000 members worldwide) has in particular called for the development of internationally recognized treatment standards and protocols. When the indication for its use adheres to strict criteria and the physicians applying the method have participated in intensive training, subcutaneous injection of phosphatidylcholine/deoxycholic acid represents a meaningful addition to the scope of minimally invasive aesthetic medicine.
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Maurer MH, Hoffmann K, Sperling K, Varon R. High prevalence of the NBN gene mutation c.657-661del5 in Southeast Germany. J Appl Genet 2010; 51:211-4. [PMID: 20453309 DOI: 10.1007/bf03195730] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Nijmegen breakage syndrome (NBS), a rare autosomal recessive chromosomal instability disorder, is caused by mutations in the NBN gene. Most patients known so far are of Slavic origin and carry the major founder mutation c.657-661del5. Due to an unexpectedly high incidence of NBS patients (homozygous for the c.657-661del5 mutation) in a Northeast Bavarian region in Southeast Germany, we estimated the prevalence of this mutation in this area and compared it to another German region. We found a high carrier frequency of 1/176 for the c.657-661del5 mutation among newborns in Northeast Bavaria, while the frequency of the mutation in Berlin was 1/990. We further studied families from a Slavic population isolate, the Sorbs, in the Lusatian region in Northeast Saxony, and revealed a prevalence of the c.657-661del5 mutation of 1/34. Whereas the Slavic origin of the Sorbs has been known, we attribute the surprisingly high frequencies of c.657-661del5 mutation in Bavaria (similar to frequencies of this mutation in various Eastern European countries) to a high percentage of people of Slavic origin in Northeast Bavaria.
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Dohatcu A, Ionita C, Sherman J, Bednarek D, Hoffmann K, Rudin S. SU-GG-I-183: Parameterization of Time-Density Curves (TDC) and Regional-TDC's to Quantify Flow Modification Inside Aneurysms Treated with Flow-Modifying Devices (FMD) Following Endovascular Image-Guided Interventions. Med Phys 2010. [DOI: 10.1118/1.3468219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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94
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Hoffmann K, Stratmann M. In-situ Mößbauerspectroscopic Investigations of Phase Transformations in Iron Oxide Layers Below Organic Coatings. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19890931153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hoffmann K, Strażyńska A, Bryl W, Rzesoś A, Popławski D, Cymerys M, Pupek-Musialik D. P5.04 THE ASSESSMENT OF METABOLIC PROFILE AND COMMON CAROTID ARTERY INTIMA-MEDIA THICKNESS IN YOUNG ADULTS WITH ESSENTIAL HYPERTENSION. Artery Res 2010. [DOI: 10.1016/j.artres.2010.10.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Cymerys M, Walczak M, Miczke A, Hoffmann K, Bryl W. P2.10 THE INFLUENCE OF SMOKING ON ARTERY STIFFNESS IN YOUNG MAN WITH ESSENTIAL ARTERIAL HYPERTENSION. Artery Res 2010. [DOI: 10.1016/j.artres.2010.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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97
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Gubler A, Hoffmann K. Beitrag zur Problematik der Zusammenhänge zwischen der Psoriasis und verschiedenen Enzymaktivitäten. Dermatology 2009. [DOI: 10.1159/000252384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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98
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Schuppli R, Seiler H, Schneeberger R, Niggli H, Hoffmann K. Über die Toxizität der Borsäure. Dermatology 2009. [DOI: 10.1159/000252197] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Herxheimer G, Hoffmann K. Ueber die anatomischen Wirkungen der Röntgenstrahlen auf den Hoden. Dtsch Med Wochenschr 2009. [DOI: 10.1055/s-0028-1135705] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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