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Lorenz A, Lenkiewicz S, Kozłowski M, Kwiatkowski S, Cymbaluk-Płoska A. Neuroendocrine Neoplasms of the Gastrointestinal Tract versus Neuroendocrine Neoplasms of the Gynaecological Tract-Comparison of the Risk Factors and Non-Surgical Treatment Efficacy. Int J Mol Sci 2023; 24:ijms24076853. [PMID: 37047829 PMCID: PMC10095130 DOI: 10.3390/ijms24076853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/05/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Neuroendocrine tumours of the gastrointestinal tract are rare. The incidence has increased in recent years due to improvements in diagnostic methods for detecting these lesions. These tumours have a poor prognosis, especially when detected at an advanced stage. The basis of the treatment is resection, and non-surgical treatments are also standard in the treatment process. The situation is similar in even rarer neuroendocrine tumours of the reproductive tract, which are associated with an equally poor prognosis. In this article, we focus on learning about the risk factors (including genetic mutations) that increase the risk of the disease and comparing the effectiveness of non-surgical treatments-chemotherapy, radiotherapy, peptide receptor radionuclide therapy, somatostatin analogues, and immunotherapy. The efficacy of these treatments varies, and immunotherapy appears to be a promising form of treatment; however, this requires further research.
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Affiliation(s)
- Anna Lorenz
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Sebastian Lenkiewicz
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Mateusz Kozłowski
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Aneta Cymbaluk-Płoska
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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Kozłowski M, Niedzielska M, Lorenz A, Brodowska A, Malanowska E, Przepiera A, Cymbaluk-Płoska A, Sowińska-Przepiera E. Metabolic and Dietary Factors in Acne Vulgaris and Evaluation of the Acne Vulgaris Treatment with Oral Contraceptive-Based Therapies in Young Adult Women. Nutrients 2023; 15:nu15061488. [PMID: 36986218 PMCID: PMC10057923 DOI: 10.3390/nu15061488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 03/05/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
The etiopathogenesis of acne is complex, as several endo- and exogenous factors that affect the sebaceous-hair unit are involved in the development of acne lesions. The main aim of the study was to evaluate selected metabolic parameters before treatment. Another goal of the study was to determine the correlation between selected metabolic and dietary parameters and the severity of acne before treatment. The third objective was to assess the severity of acne before and after treatment, considering the type of treatment used. The final objective was to assess the relationship between the difference in acne severity before and after treatment, considering the type of treatment used and factors of dairy or sweets intake. 168 women participated in the study. The patients belonged to two groups: the study group (99 patients with acne vulgaris) and the control group (69 patients without skin lesions). The study group was divided into subgroups according to the treatment used: contraceptive preparation, contraceptive preparation and cyproterone acetate, and contraceptive preparation and isotretinoin preparation. We found that LDL levels and consumption of sweets correlated with acne severity. The mainstay of acne treatment is contraceptive treatment (ethinylestradiol and drospirenone). The effectiveness of the three contraceptive-based treatments was confirmed by observing the severity of acne. There were no significant correlations between the difference in acne severity before and after treatment with the three treatments and factors of dairy or sweet consumption.
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Affiliation(s)
- Mateusz Kozłowski
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Mirela Niedzielska
- Department of Endocrinology, Metabolic and Internal Diseases, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Anna Lorenz
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Agnieszka Brodowska
- Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Ewelina Malanowska
- Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Adam Przepiera
- Department of Urology and Urologic Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Aneta Cymbaluk-Płoska
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Elżbieta Sowińska-Przepiera
- Department of Endocrinology, Metabolic and Internal Diseases, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
- Pediatric, Adolescent Gynecology Clinic, Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
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Lorenz A, Augustin C, Konschake M, Gehwolf P, Henninger B, Augustin F, Öfner D. The Preperitoneal Space in Hernia Repair. Front Surg 2022; 9:869731. [PMID: 35711709 PMCID: PMC9197412 DOI: 10.3389/fsurg.2022.869731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022] Open
Abstract
The preperitoneal spaces relevant for incisional hernia repair and minimally invasive groin hernia repair are described in terms of surgical anatomy. Emphasis is put on the transversalis fascia and the urogenital fascia and its extensions, the vesicoumbilical fascia, and the spermatic sheath of Stoppa procedure. Steps in hernia surgery where these structures are relevant are reviewed.
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Affiliation(s)
- A. Lorenz
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - C. Augustin
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - M. Konschake
- Department of Anatomy, Histology and Embryology, Institute of Clinical and Functional Anatomy, Medical University Innsbruck (MUI), Innsbruck, Austria
| | - P. Gehwolf
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - B. Henninger
- Department of Radiology, Innsbruck Medical University, Innsbruck, Austria
| | - F. Augustin
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
- Correspondence: Florian Augustin
| | - D. Öfner
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
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Maaß U, Kühne F, Poltz N, Lorenz A, Ay-Bryson DS, Weck F. Live supervision in psychotherapy training—A systematic review. Training and Education in Professional Psychology 2022. [DOI: 10.1037/tep0000390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pabinger C, Lothaller H, Lorenz A, Dammerer D. Telemedicine versus on-site treatment at a surgical university clinic: Study of 225 consecutive patients. Int J Med Inform 2021; 151:104460. [PMID: 33965683 DOI: 10.1016/j.ijmedinf.2021.104460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Recently, telemedical services are increasingly used. It remains unclear, if outpatients in general surgery can be treated via telemedicine (e.g. telework). We aimed to evaluate, if diagnosis and therapies of outpatients in general surgery can be found using a mobile healthcare communication app instead of personal contact. MATERIAL AND METHODS In a prospective, double blind, anonymized clinical study we included consecutive outpatients at a general surgery department at a university hospital. For the telemedical "treatment" the on-site doctors uploaded variables (e.g. anamnesis, radiograph, etc.) for each patient. The telemedical doctor received the information only via app and did not see the patient physically. Both, the doctor on-site and the virtual telemedical-doctor then uploaded the diagnosis and their suggested therapy - blinded to each other. The outpatient received the on-site treatment only. The virtual treatment was solely for scientific purposes and had no therapeutic impact. RESULTS 225 consecutive surgical outpatients (53 % female and 47 % male) were included. Mean age was 61 years. In 84 % of cases the telemedical diagnosis matched the on-site diagnosis. The telemedical treatment was not inferior as compared to the on-site treatment in 94 % of all cases and the same therapy was proposed in 76 %. In 6% of all cases the telemedical therapeutic regimen could possibly harm or lead to an over- or under treatment of the patient. CONCLUSION Telemedical consultation seems to work in the field of general surgery. Telemedicine in general surgery potentially could decrease waiting time for an appointment and patient frequency. However, the potential harm of a wrong therapy remains due to the lack of a clinical observation.
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Affiliation(s)
- C Pabinger
- Medical University of Innsbruck, Christoph-Probst-Platz 1, Innrain 52 A, Innsbruck, 6020, Austria.
| | - H Lothaller
- University of Music and Performing Arts Graz, 8010 Graz, Leonhardstraße 15, Graz, 8010, Austria
| | - A Lorenz
- Medical University of Innsbruck, Department of Visceral, Transplantation and Thoracic Surgery, Center of Operative Medicine, Anichstraße 35, Innsbruck, 6020, Austria
| | - D Dammerer
- Medical University of Innsbruck, Anichstraße 35, Innsbruck, 6020, Austria
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Baert Y, Ruetschle I, Cools W, Oehme A, Lorenz A, Marx U, Goossens E, Maschmeyer I. A multi-organ-chip co-culture of liver and testis equivalents: a first step toward a systemic male reprotoxicity model. Hum Reprod 2021; 35:1029-1044. [PMID: 32390056 DOI: 10.1093/humrep/deaa057] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/30/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION Is it possible to co-culture and functionally link human liver and testis equivalents in the combined medium circuit of a multi-organ chip? SUMMARY ANSWER Multi-organ-chip co-cultures of human liver and testis equivalents were maintained at a steady-state for at least 1 week and the co-cultures reproduced specific natural and drug-induced liver-testis systemic interactions. WHAT IS KNOWN ALREADY Current benchtop reprotoxicity models typically do not include hepatic metabolism and interactions of the liver-testis axis. However, these are important to study the biotransformation of substances. STUDY DESIGN, SIZE, DURATION Testicular organoids derived from primary adult testicular cells and liver spheroids consisting of cultured HepaRG cells and hepatic stellate cells were loaded into separate culture compartments of each multi-organ-chip circuit for co-culture in liver spheroid-specific medium, testicular organoid-specific medium or a combined medium over a week. Additional multi-organ-chips (single) and well plates (static) were loaded only with testicular organoids or liver spheroids for comparison. Subsequently, the selected type of medium was supplemented with cyclophosphamide, an alkylating anti-neoplastic prodrug that has demonstrated germ cell toxicity after its bioactivation in the liver, and added to chip-based co-cultures to replicate a human liver-testis systemic interaction in vitro. Single chip-based testicular organoids were used as a control. Experiments were performed with three biological replicates unless otherwise stated. PARTICIPANTS/MATERIALS, SETTING, METHODS The metabolic activity was determined as glucose consumption and lactate production. The cell viability was measured as lactate dehydrogenase activity in the medium. Additionally, immunohistochemical and real-time quantitative PCR end-point analyses were performed for apoptosis, proliferation and cell-specific phenotypical and functional markers. The functionality of Sertoli and Leydig cells in testicular spheroids was specifically evaluated by measuring daily inhibin B and testosterone release, respectively. MAIN RESULTS AND THE ROLE OF CHANCE Co-culture in multi-organ chips with liver spheroid-specific medium better supported the metabolic activity of the cultured tissues compared to other media tested. The liver spheroids did not show significantly different behaviour during co-culture compared to that in single culture on multi-organ-chips. The testicular organoids also developed accordingly and produced higher inhibin B but lower testosterone levels than the static culture in plates with testicular organoid-specific medium. By comparison, testosterone secretion by testicular organoids cultured individually on multi-organ-chips reached a similar level as the static culture at Day 7. This suggests that the liver spheroids have metabolised the steroids in the co-cultures, a naturally occurring phenomenon. The addition of cyclophosphamide led to upregulation of specific cytochromes in liver spheroids and loss of germ cells in testicular organoids in the multi-organ-chip co-cultures but not in single-testis culture. LARGE-SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The number of biological replicates included in this study was relatively small due to the limited availability of individual donor testes and the labour-intensive nature of multi-organ-chip co-cultures. Moreover, testicular organoids and liver spheroids are miniaturised organ equivalents that capture key features, but are still simplified versions of the native tissues. Also, it should be noted that only the prodrug cyclophosphamide was administered. The final concentration of the active metabolite was not measured. WIDER IMPLICATIONS OF THE FINDINGS This co-culture model responds to the request of setting up a specific tool that enables the testing of candidate reprotoxic substances with the possibility of human biotransformation. It further allows the inclusion of other human tissue equivalents for chemical risk assessment on the systemic level. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by research grants from the Scientific Research Foundation Flanders (FWO), Universitair Ziekenhuis Brussel (scientific fund Willy Gepts) and the Vrije Universiteit Brussel. Y.B. is a postdoctoral fellow of the FWO. U.M. is founder, shareholder and CEO of TissUse GmbH, Berlin, Germany, a company commercializing the Multi-Organ-Chip platform systems used in the study. The other authors have no conflict of interest to declare.
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Affiliation(s)
- Y Baert
- Biology of the Testis (BITE) Research Group, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - I Ruetschle
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - W Cools
- Interfaculty Center Data Processing and Statistics (ICDS), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - A Oehme
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - A Lorenz
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - U Marx
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
| | - E Goossens
- Biology of the Testis (BITE) Research Group, Department of Reproduction, Genetics and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - I Maschmeyer
- TissUse GmbH, Oudenarder Str. 16, 13347 Berlin, Germany
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Schafforz S, Nordendorf G, Nava G, Lucchetti L, Lorenz A. Formation of relocatable umbilical defects in a liquid crystal with positive dielectric anisotropy induced via photovoltaic fields. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112963] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gehwolf P, Renz O, Brenner E, Cardini B, Lorenz A, Wykypiel H. Laparoscopic fundoplication and new aspects of neural anatomy at the oesophagogastric junction. BJS Open 2020; 4:400-404. [PMID: 32134571 PMCID: PMC7260418 DOI: 10.1002/bjs5.50271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 02/03/2020] [Indexed: 11/23/2022] Open
Abstract
Background In fundoplication, mobilization of the distal oesophagus and proximal stomach is essential to obtain a sufficient tension‐free intra‐abdominal oesophageal length for creation of an efficient antireflux barrier. Most surgical literature and anatomical illustrations do not describe nerve branches running from the diaphragm to the stomach. After observing small nerve branches at laparoscopic fundoplication, penetrating the left crus of the diaphragm lateral to the hiatus and apparently running into the stomach, an anatomical cadaver study was undertaken to identify the origin and target organ of these nerves. Methods Fifty‐three human cadavers (23 men, 30 women; age range 35–103 years) were dissected with special attention to the nerves that penetrate the left crus of the diaphragm. The entire course of these nerves was documented with standardized drawings and photos. Results Small nerve branches penetrating the diaphragm lateral to the left crus of the hiatus were found in 17 (32 per cent) of the 53 cadavers. In 14 of these 17 cadavers, one or two splanchnic nerve branches were identified, and in ten of the 17 the nerve branches were found to be phrenic nerves. In seven of these 17 cadavers, two different nerve branches were found and assigned to both splanchnic and phrenic nerves. Conclusion Nerves penetrating the left crus with splanchnic origin or phrenic origin have been identified. Their function remains unclear and their relationship to postfundoplication symptoms remains to be determined.
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Affiliation(s)
- P Gehwolf
- Department of Visceral, Transplant and Thoracic Surgery, Centre for Operative Medicine, Innsbruck, Austria
| | - O Renz
- Department of Visceral, Transplant and Thoracic Surgery, Centre for Operative Medicine, Innsbruck, Austria
| | - E Brenner
- Department of Anatomy, Histology and Embryology, Division of Clinical and Functional Anatomy, Medical University of Innsbruck, Innsbruck, Austria
| | - B Cardini
- Department of Visceral, Transplant and Thoracic Surgery, Centre for Operative Medicine, Innsbruck, Austria
| | - A Lorenz
- Department of Visceral, Transplant and Thoracic Surgery, Centre for Operative Medicine, Innsbruck, Austria
| | - H Wykypiel
- Department of Visceral, Transplant and Thoracic Surgery, Centre for Operative Medicine, Innsbruck, Austria
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Schumann C, Chan S, Millar JA, Bortnyak Y, Carey K, Fedchyk A, Wong L, Korzun T, Moses AS, Lorenz A, Shea D, Taratula O, Khalimonchuk O, Taratula O. Intraperitoneal nanotherapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. Nanomedicine 2018; 14:1395-1405. [PMID: 29635082 DOI: 10.1016/j.nano.2018.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022]
Abstract
Herein, we report an efficient combinatorial therapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. DJ-1 protein modulates, either directly or indirectly, different oncogenic pathways that support and promote survival, growth, and invasion of ovarian cancer cells. To evaluate the potential of this novel therapy, we have engineered a cancer-targeted nanoplatform and validated that DJ-1 siRNA delivered by this nanoplatform after intraperitoneal injection efficiently downregulates the DJ-1 protein in metastatic ovarian cancer tumors and ascites. In vivo experiments revealed that DJ-1 siRNA monotherapy outperformed cisplatin alone by inhibiting tumor growth and increasing survival of mice with metastatic ovarian cancer. Finally, three cycles of siRNA-mediated DJ-1 therapy in combination with a low dose of cisplatin completely eradicated ovarian cancer tumors from the mice, and there was no cancer recurrence detected for the duration of the study, which lasted 35 weeks.
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Affiliation(s)
- Canan Schumann
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Stephanie Chan
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Jess A Millar
- Fairborz Maseeh Department of Mathematics and Statistics, Portland State University, OR, USA
| | - Yuliya Bortnyak
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Katherine Carey
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Alex Fedchyk
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Leon Wong
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Tetiana Korzun
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Abraham S Moses
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Anna Lorenz
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Delany Shea
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Olena Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Oleh Khalimonchuk
- Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, NE, USA; Fred & Pamela Buffett Cancer Center, Omaha, NE, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA.
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Neumann T, Lorenz A, Volk GF, Hamzei F, Schulz S, Guntinas-Lichius O. [Validation of the German Version of the Sunnybrook Facial Grading System]. Laryngorhinootologie 2016; 96:168-174. [PMID: 27832680 DOI: 10.1055/s-0042-111512] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Background: The Sunnybrook facial grading system (SFGS) is frequently applied to evaluate facial function in patients with facial palsy, but still now there is no validated German version of this evaluation sheet. Methods: The original English version of the SFGS was translated and validated in accordance with international standards. The interrater reliability from 5 raters (speech therapy students) and the intrarater reliability from repeated ratings at 2 time points using video tapes of 18 patients with different types of facial palsy were analyzed by calculating the intraclass correlation coefficient (ICC) and other reliability measures. Results: ICC for the interrater reliability for the 4 components of the SFGS, resting symmetry, symmetry during voluntary movements, synkinesis, and the composite score were ICC 0.845; 0.903; 0.731 and 0.918, respectively, for the first evaluation and ICC 0.881; 0.932; 0.818 and 0.940, respectively, for the second evaluation. The mean intrarater reliability for the 4 SFGS scores was ICC=0.791; 0.906; 0.770 and 0.905. Discussion: There is now a valid German version of the SFGS available that can be used even by novices. The German version is suitable for evaluation of facial palsies in clinical routine and studies to allow a better comparability of German patients with results of the international literature.
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Affiliation(s)
- T Neumann
- Fachbereich angewandte Gesundheitswissenschaften, Europäische Fachhochschule, Rostock, Rostock
| | - A Lorenz
- Abteilung für Neurologie, Moritz Klinik, Bad Klosterlausnitz
| | - G F Volk
- HNO-Klinik, Universitätsklinikum Jena, Jena
| | - F Hamzei
- Abteilung für Neurologie, Moritz Klinik, Bad Klosterlausnitz
| | - S Schulz
- Fazialis-Nerv-Zentrum, Universitätsklinikum Jena, Jena
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Krychowiak M, Adnan A, Alonso A, Andreeva T, Baldzuhn J, Barbui T, Beurskens M, Biel W, Biedermann C, Blackwell BD, Bosch HS, Bozhenkov S, Brakel R, Bräuer T, Brotas de Carvalho B, Burhenn R, Buttenschön B, Cappa A, Cseh G, Czarnecka A, Dinklage A, Drews P, Dzikowicka A, Effenberg F, Endler M, Erckmann V, Estrada T, Ford O, Fornal T, Frerichs H, Fuchert G, Geiger J, Grulke O, Harris JH, Hartfuß HJ, Hartmann D, Hathiramani D, Hirsch M, Höfel U, Jabłoński S, Jakubowski MW, Kaczmarczyk J, Klinger T, Klose S, Knauer J, Kocsis G, König R, Kornejew P, Krämer-Flecken A, Krawczyk N, Kremeyer T, Książek I, Kubkowska M, Langenberg A, Laqua HP, Laux M, Lazerson S, Liang Y, Liu SC, Lorenz A, Marchuk AO, Marsen S, Moncada V, Naujoks D, Neilson H, Neubauer O, Neuner U, Niemann H, Oosterbeek JW, Otte M, Pablant N, Pasch E, Sunn Pedersen T, Pisano F, Rahbarnia K, Ryć L, Schmitz O, Schmuck S, Schneider W, Schröder T, Schuhmacher H, Schweer B, Standley B, Stange T, Stephey L, Svensson J, Szabolics T, Szepesi T, Thomsen H, Travere JM, Trimino Mora H, Tsuchiya H, Weir GM, Wenzel U, Werner A, Wiegel B, Windisch T, Wolf R, Wurden GA, Zhang D, Zimbal A, Zoletnik S. Overview of diagnostic performance and results for the first operation phase in Wendelstein 7-X (invited). Rev Sci Instrum 2016; 87:11D304. [PMID: 27910389 DOI: 10.1063/1.4964376] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wendelstein 7-X, a superconducting optimized stellarator built in Greifswald/Germany, started its first plasmas with the last closed flux surface (LCFS) defined by 5 uncooled graphite limiters in December 2015. At the end of the 10 weeks long experimental campaign (OP1.1) more than 20 independent diagnostic systems were in operation, allowing detailed studies of many interesting plasma phenomena. For example, fast neutral gas manometers supported by video cameras (including one fast-frame camera with frame rates of tens of kHz) as well as visible cameras with different interference filters, with field of views covering all ten half-modules of the stellarator, discovered a MARFE-like radiation zone on the inboard side of machine module 4. This structure is presumably triggered by an inadvertent plasma-wall interaction in module 4 resulting in a high impurity influx that terminates some discharges by radiation cooling. The main plasma parameters achieved in OP1.1 exceeded predicted values in discharges of a length reaching 6 s. Although OP1.1 is characterized by short pulses, many of the diagnostics are already designed for quasi-steady state operation of 30 min discharges heated at 10 MW of ECRH. An overview of diagnostic performance for OP1.1 is given, including some highlights from the physics campaigns.
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Affiliation(s)
- M Krychowiak
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Adnan
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Alonso
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - T Andreeva
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Baldzuhn
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Barbui
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - M Beurskens
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - W Biel
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - C Biedermann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B D Blackwell
- Australian National University, Acton ACT, 2601 Canberra, Australia
| | - H S Bosch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Bozhenkov
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - R Brakel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Bräuer
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Brotas de Carvalho
- Instituto de Plasmas e Fusao Nuclear, Avenue Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - R Burhenn
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Buttenschön
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Cappa
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - G Cseh
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - A Czarnecka
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - A Dinklage
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - P Drews
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - A Dzikowicka
- University of Szczecin, al. Papieża Jana Pawła II 22A, Szczecin, Poland
| | - F Effenberg
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - M Endler
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - V Erckmann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Estrada
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - O Ford
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Fornal
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - H Frerichs
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - G Fuchert
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Geiger
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - O Grulke
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J H Harris
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H J Hartfuß
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - D Hartmann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - D Hathiramani
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Hirsch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - U Höfel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Jabłoński
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - M W Jakubowski
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Kaczmarczyk
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - T Klinger
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Klose
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Knauer
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - G Kocsis
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - R König
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - P Kornejew
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Krämer-Flecken
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - N Krawczyk
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - T Kremeyer
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - I Książek
- Opole University, pl. Kopernika 11a, 45-040 Opole, Poland
| | - M Kubkowska
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - A Langenberg
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H P Laqua
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Laux
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Lazerson
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - Y Liang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - S C Liu
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - A Lorenz
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A O Marchuk
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - S Marsen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - V Moncada
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - D Naujoks
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Neilson
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - O Neubauer
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - U Neuner
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Niemann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J W Oosterbeek
- Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - M Otte
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - E Pasch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Sunn Pedersen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - F Pisano
- University of Cagliari, Via Università, 40, 09124 Cagliari, Italy
| | - K Rahbarnia
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - L Ryć
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - O Schmitz
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - S Schmuck
- Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - W Schneider
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Schröder
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Schuhmacher
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Schweer
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - B Standley
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Stange
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - L Stephey
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - J Svensson
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Szabolics
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - T Szepesi
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - H Thomsen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J-M Travere
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - H Trimino Mora
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Tsuchiya
- NIFS National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - G M Weir
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - U Wenzel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Werner
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Wiegel
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - T Windisch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - R Wolf
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - G A Wurden
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Zhang
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Zimbal
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - S Zoletnik
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
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Kurbacher C, Fietz T, Trarbach T, Salat C, Rezai M, Lorenz A, Niemeier B. Prophylaxis of chemotherapy-induced neutropenia with lipegfilgrastim in patients with breast cancer: results from an interim analysis of the non-interventional study NADIR. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Horland R, Maschmeyer I, Dehne M, Hasenberg T, Ramme A, Lorenz A, Jaenicke A, Hübner J, Schimek K, Atac-Wagegg B, Lauster R, Marx U. Chip based microphysiological systems – A step toward emulation of systemic aspects of human biology in vitro. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Leichtle CI, Lorenz A, Rothstock S, Happel J, Walter F, Shiozawa T, Leichtle UG. Pull-out strength of cemented solid versus fenestrated pedicle screws in osteoporotic vertebrae. Bone Joint Res 2016; 5:419-26. [PMID: 27678328 PMCID: PMC5041096 DOI: 10.1302/2046-3758.59.2000580] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 07/14/2016] [Indexed: 12/15/2022] Open
Abstract
Objectives Cement augmentation of pedicle screws could be used to improve screw stability, especially in osteoporotic vertebrae. However, little is known concerning the influence of different screw types and amount of cement applied. Therefore, the aim of this biomechanical in vitro study was to evaluate the effect of cement augmentation on the screw pull-out force in osteoporotic vertebrae, comparing different pedicle screws (solid and fenestrated) and cement volumes (0 mL, 1 mL or 3 mL). Materials and Methods A total of 54 osteoporotic human cadaver thoracic and lumbar vertebrae were instrumented with pedicle screws (uncemented, solid cemented or fenestrated cemented) and augmented with high-viscosity PMMA cement (0 mL, 1 mL or 3 mL). The insertion torque and bone mineral density were determined. Radiographs and CT scans were undertaken to evaluate cement distribution and cement leakage. Pull-out testing was performed with a material testing machine to measure failure load and stiffness. The paired t-test was used to compare the two screws within each vertebra. Results Mean failure load was significantly greater for fenestrated cemented screws (+622 N; p ⩽ 0.001) and solid cemented screws (+460 N; p ⩽ 0.001) than for uncemented screws. There was no significant difference between the solid and fenestrated cemented screws (p = 0.5). In the lower thoracic vertebrae, 1 mL cement was enough to significantly increase failure load, while 3 mL led to further significant improvement in the upper thoracic, lower thoracic and lumbar regions. Conclusion Conventional, solid pedicle screws augmented with high-viscosity cement provided comparable screw stability in pull-out testing to that of sophisticated and more expensive fenestrated screws. In terms of cement volume, we recommend the use of at least 1 mL in the thoracic and 3 mL in the lumbar spine. Cite this article: C. I. Leichtle, A. Lorenz, S. Rothstock, J. Happel, F. Walter, T. Shiozawa, U. G. Leichtle. Pull-out strength of cemented solid versus fenestrated pedicle screws in osteoporotic vertebrae. Bone Joint Res 2016;5:419–426.
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Affiliation(s)
- C I Leichtle
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
| | - A Lorenz
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
| | - S Rothstock
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
| | - J Happel
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
| | - F Walter
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
| | - T Shiozawa
- Department of Clinical Anatomy and Cell Analytics, Institute of Anatomy, University of Tübingen, Tübingen, Germany
| | - U G Leichtle
- Department of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany
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Bauer S, Magauer C, Maschmeyer I, Drewell C, Lorenz A, Lauster R, Marx U. Towards a multi-organ-chip platform combining human liver, pancreatic islets, skeletal muscle and kidney equivalents to study metabolic diseases. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1584105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
Non-allergic rhinitis is a heterogenous group of medical diseases without an IgE-mediated pathophysiology. In this review, typical subgroups are presented with data regarding their frequency, clinical symptoms and recommendations for an effective and efficient diagnostic and therapeutic approach are indicated. The most common subtype is the non-allergic rhinopathy, also known as idiopathic or vasomotoric rhinitis. Because medication induced rhinitis is still a frequent clinical problem, a step wise approach to wean the patient is presented.
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Affiliation(s)
- A Lorenz
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Abteilung Phoniatrie und Pädaudiologie, Universitätsklinikum Regensburg (Direktor: Prof. Dr. J. Strutz)
| | - I Küster
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie der Universität Greifswald (Direktor: Prof. Dr. W. Hosemann)
| | - A G Beule
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie der Universität Greifswald (Direktor: Prof. Dr. W. Hosemann)
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Stewart MP, Lorenz A, Dahlman J, Sahay G. Challenges in carrier-mediated intracellular delivery: moving beyond endosomal barriers. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2015; 8:465-78. [PMID: 26542891 DOI: 10.1002/wnan.1377] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/07/2015] [Accepted: 09/15/2015] [Indexed: 01/08/2023]
Abstract
The deployment of molecular to microscale carriers for intracellular delivery has tremendous potential for biology and medicine, especially for in vivo therapies. The field remains limited, however, by a poor understanding of how carriers gain access to the cell interior. In this review, we provide an overview of the different types of carriers, their speculated modes of entry, putative pathways of vesicular transport, and sites of endosomal escape. We compare this alongside pertinent examples from the cell biology of how viruses, bacteria, and their effectors enter cells and escape endosomal confinement. We anticipate insights into the mechanisms of cellular entry and endosomal escape will benefit future research efforts on effective carrier-mediated intracellular delivery. WIREs Nanomed Nanobiotechnol 2016, 8:465-478. doi: 10.1002/wnan.1377 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Martin P Stewart
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Anna Lorenz
- Department of Pharmaceutical Sciences, OSU/OHSU College of Pharmacy, Portland, OR, USA
| | - James Dahlman
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Gaurav Sahay
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Pharmaceutical Sciences, OSU/OHSU College of Pharmacy, Portland, OR, USA
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Maschmeyer I, Lorenz A, Ramme A, Hasenberg T, Schimek K, Hübner J, Lauster R, Marx U. A microfluidic four-organ-chip for interconnected long-term co-culture of human intestine, liver, skin and kidney equivalents. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Johnston EJ, Rylott EL, Beynon E, Lorenz A, Chechik V, Bruce NC. Monodehydroascorbate reductase mediates TNT toxicity in plants. Science 2015; 349:1072-5. [DOI: 10.1126/science.aab3472] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Lorenz A, Senne A, Rohde J, Kroh S, Wittenberg M, Krüger K, Clement F, Biro D. Evaluation of Flexographic Printing Technology for Multi-busbar Solar Cells. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.egypro.2015.03.296] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lorenz A, Herzog Y, Schnauffer P, Arnold M, Wülker N, Leichtle UG. Rapid prototyping--a promising technique for orthopaedic implant fabrication: application and validation of TKA prototypes for in-vitro testing. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:54-5. [PMID: 25074161 DOI: 10.1080/10255842.2014.931109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- A Lorenz
- a Department of Orthopaedic Surgery , University Hospital Tübingen , 72076 , Tübingen , Germany
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König R, Biel W, Biedermann C, Burhenn R, Cseh G, Czarnecka A, Endler M, Estrada T, Grulke O, Hathiramani D, Hirsch M, Jabłonski S, Jakubowski M, Kaczmarczyk J, Kasparek W, Kocsis G, Kornejew P, Krämer-Flecken A, Krychowiak M, Kubkowska M, Langenberg A, Laux M, Liang Y, Lorenz A, Neubauer O, Otte M, Pablant N, Pasch E, Pedersen TS, Schmitz O, Schneider W, Schuhmacher H, Schweer B, Thomsen H, Szepesi T, Wiegel B, Windisch T, Wolf S, Zhang D, Zoletnik S. Status of the diagnostics development for the first operation phase of the stellarator Wendelstein 7-X. Rev Sci Instrum 2014; 85:11D818. [PMID: 25430231 DOI: 10.1063/1.4889905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An overview of the diagnostics which are essential for the first operational phase of Wendelstein 7-X and the set of diagnostics expected to be ready for operation at this time are presented. The ongoing investigations of how to cope with high levels of stray Electron Cyclotron Resonance Heating (ECRH) radiation in the ultraviolet (UV)/visible/infrared (IR) optical diagnostics are described.
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Affiliation(s)
- R König
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - W Biel
- Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - C Biedermann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - R Burhenn
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - G Cseh
- Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary
| | - A Czarnecka
- IFPiLM, Hery Street 23, 01-497 Warsaw, Poland
| | - M Endler
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Estrada
- Laboratorio Nacional de Fusion, CIEMAT, Avenida Complutense, Madrid, Spain
| | - O Grulke
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - D Hathiramani
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Hirsch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Jabłonski
- IFPiLM, Hery Street 23, 01-497 Warsaw, Poland
| | - M Jakubowski
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | | | - W Kasparek
- IGVP, Universität Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany
| | - G Kocsis
- Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary
| | - P Kornejew
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Krämer-Flecken
- Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - M Krychowiak
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Kubkowska
- IFPiLM, Hery Street 23, 01-497 Warsaw, Poland
| | - A Langenberg
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Laux
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - Y Liang
- Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - A Lorenz
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - O Neubauer
- Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - M Otte
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - E Pasch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T S Pedersen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - O Schmitz
- Department of Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, USA
| | - W Schneider
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Schuhmacher
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Schweer
- Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - H Thomsen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Szepesi
- Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary
| | - B Wiegel
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - T Windisch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Wolf
- IGVP, Universität Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany
| | - D Zhang
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Zoletnik
- Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary
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Reichl I, Leichtle U, Lorenz A. Functionally computed flexion axis reduces kinematic interspecimen variation inin vitroexperiments. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:126-7. [DOI: 10.1080/10255842.2014.931519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lorenz A, Busse M, Dalüge K, Behrendt AK, Hansen G, Meyer-Bahlburg A. Investigating the role of BAFF in different mouse models of allergic asthma. Pneumologie 2014. [DOI: 10.1055/s-0034-1376773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Stadler R, Vorköper A, Boscary J, Li C, Mendelevitch B, Peacock A, Pirsch H, Freier D, Lorenz A. Challenges in the realization of the In-Vessel-Components of Wendelstein 7-X. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.03.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lorenz A, Kleber B, Büttner M, Fuchs M, Mürbe D, Richter B, Sandel M, Nawka T. Validierung des Singing Voice Handicap Index in der deutschen Fassung. HNO 2013; 61:699-706. [DOI: 10.1007/s00106-013-2721-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Seidel G, Blessin J, Ringer T, Schulz K, Lorenz A, Witte O, Hamzei F. Wo werden Objekte bei Jungen und Alten gelernt? Eine multimodale Imagingstudie. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lorenz A, Herrmann C, Issinger O, Montenarh M. Phosphorylation of wild-type and mutant phenotypes of p53 by an associated protein-kinase. Int J Oncol 2012; 1:571-9. [PMID: 21584583 DOI: 10.3892/ijo.1.5.571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Immunopurified mutant mouse p53 from transformed cells is known to be tightly associated with a protein kinase which phosphorylates p53 in an in vitro kinase reaction. Wild-type p53 from a non-transformed cell line was not associated with a protein kinase whereas immunopurified wild-type p53 from a transformed cell line was tightly associated with a protein kinase which phosphorylated p53. In order to compare wild-type and mutant p53 in the same cellular environment both forms were cloned in a baculovirus expression system and in in vitro transcription/translation vectors and both p53 proteins were expressed in the two systems. Wild-type and mutant p53 from baculovirus infected insect cells were tightly associated with a protein kinase which phosphorylates p53. In contrast, immunopurified wild-type and mutant p53 from an in vitro transcription/translation reaction were not associated with a protein kinase but could be phosphorylated by added casein kinase II. Thus, in the present paper we demonstrate that the association of p53 with a protein kinase and the in vitro phosphorylation of p53 seems to depend on the surrounding cellular environment.
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Affiliation(s)
- A Lorenz
- UNIV SAARLAND,GEBAUDE 44,W-6650 HOMBURG,GERMANY. UNIV SAARLAND,INST HUMAN GENET,W-6650 HOMBURG,GERMANY
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Nikel O, Laurencin D, Bonhomme C, Sroga GE, Besdo S, Lorenz A, Vashishth D. Solid state NMR investigation of intact human bone quality: balancing issues and insight into the structure at the organic-mineral interface. J Phys Chem C Nanomater Interfaces 2012; 116:6320-6331. [PMID: 22822414 PMCID: PMC3399594 DOI: 10.1021/jp2125312] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Age-related bone fragility fractures present a significant problem for public health. Measures of bone quality are increasingly recognized to complement the conventional bone mineral density (BMD) based assessment of fracture risk. The ability to probe and understand bone quality at the molecular level is desirable in order to unravel how the structure of organic matrix and its association with mineral contribute to the overall mechanical properties. The (13)C{(31)P} REDOR MAS NMR (Rotational Echo Double Resonance Magic Angle Spinning Nuclear Magnetic Resonance) technique is uniquely suited for the study of the structure of the organic-mineral interface in bone. For the first time, we have applied it successfully to analyze the structure of intact (non-powdered) human cortical bone samples, from young healthy and old osteoporotic donors. Loading problems associated with the rapid rotation of intact bone were solved using a Finite Element Analysis (FEA) approach, and a method allowing osteoporotic samples to be balanced and spun reproducibly is described. REDOR NMR parameters were set to allow insight into the arrangement of the amino acids at the mineral interface to be accessed, and SVD (Singular Value Decomposition) was applied to enhance the signal to noise ratio and enable a better analysis of the data. From the REDOR data, it was found that carbon atoms belonging to citrate/glucosaminoglycans (GAGs) are closest to the mineral surface regardless of age or site. In contrast, the arrangement of the collagen backbone at the interface varied with site and age. The relative proximity of two of the main amino acids in bone matrix proteins, hydroxyproline and alanine, with respect to the mineral phase was analyzed in more detail, and discussed in view of glycation measurements which were carried out on the tissues. Overall, this work shows that the (13)C{(31)P} REDOR NMR approach could be used as a complementary technique to assess a novel aspect of bone quality, the organic-mineral interface structure.
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Affiliation(s)
- Ondrej Nikel
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM2-ENSCM-UM1, Université Montpellier 2, Montpellier, France
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM2-ENSCM-UM1, Université Montpellier 2, Montpellier, France
| | - Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574, UPMC Univ. Paris 06, Paris, France
| | - Grażyna E. Sroga
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Silke Besdo
- Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574, UPMC Univ. Paris 06, Paris, France
| | - Anna Lorenz
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Deepak Vashishth
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
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Frank-Raue K, Leidig-Bruckner G, Lorenz A, Rondot S, Haag C, Schulze E, Büchler M, Raue F. [Hereditary variants of primary hyperparathyroidism--MEN1, MEN2, HPT-JT, FHH, FIHPT]. Dtsch Med Wochenschr 2011; 136:1889-94. [PMID: 21915802 DOI: 10.1055/s-0031-1286358] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVE The challenge in diagnosing primary hyperparathyroidism (HPT) is to detect hereditary cases before first surgery. About 5% of cases are hereditary and integral component of multiple endocrine neoplasia type 1 and 2 (MEN1/MEN2), hyperparathyroidism-jaw tumor syndrome (HPT-JT), familial hypocalciuric hypercalcemia (FHH), and familial isolated hyperparathyroidism (FIHPT). Aim of this study was to evaluate similarities and differences in hereditary varieties of HPT. PATIENTS 80 patients with hereditary HPT were evaluated in a retrospective analysis between 1980 and 2010 concerning clinical findings, family history, therapy, biochemical and molecular-genetic findings and follow-up. RESULTS 80 patients with hereditary HPT are described, 52 belonged to MEN1, 15 to MEN2, 7 to HPT-JT, 4 to FHH and 2 to FIHPT kindreds. Penetrance of HPT was highest in MEN1 (85%), followed by HPT-JT (64%), FHH (28.5%), and MEN2 (8%). Youngest age at diagnosis of HPT was 7 and 16 years in the MEN2/HPT-JT group. Serum Calcium was highest in the HPT-JT group (3.6 mM), recurrencies of HPT were highest in the MEN1 group (40.5%). Parathyroid cancer solely occurred in the HPT-JT group. In single cases HPT occurs in FHH. CONCLUSION Among the different varieties of hereditary HPT MEN1-HPT is most frequent and carries the utmost recurrence rate. Early diagnosis of HPT-JT syndrome is important because of the occurrence of parathyroid cancer. Single cases of HPT in FHH are described. Preoperative diagnosis of hereditary HPT has therapeutic consequences concerning extent of surgery and implications concerning patient and family care.
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Affiliation(s)
- K Frank-Raue
- Endokrinologische Gemeinschaftspraxis und molekulargenetisches Labor, Heidelberg.
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Schleipen B, Hertrampf T, Fritzemeier KH, Kluxen FM, Lorenz A, Molzberger A, Velders M, Diel P. ERβ-specific agonists and genistein inhibit proliferation and induce apoptosis in the large and small intestine. Carcinogenesis 2011; 32:1675-83. [PMID: 21856997 DOI: 10.1093/carcin/bgr188] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Epidemiological data indicate that intake of estrogens and isoflavones may be beneficial for the prevention of colorectal cancer (CRC). Based on this data, the aim of the study was to investigate estrogen receptor (ER) subtype-specific effects on intestinal homeostasis. Ovariectomized (OVX) female Wistar rats were either treated with 17β-estradiol (4 μg/kg body wt/day) (E2), an ERα-specific agonist (ALPHA) (10 μg/kg body wt/day), an ERβ-specific agonist (BETA) (100 μg/kg body wt/day) or genistein (GEN) (10 mg/kg body wt/day) for three weeks. Vehicle-treated OVX and SHAM animals and those cotreated with BETA and the pure antiestrogen Fulvestrant (ICI 182780) (100 μg/kg body wt/day and 3 mg/kg body wt/day) served as controls. GEN and BETA treatment but not E2 and ALPHA administration reduced proliferation in ileal and colonic mucosa cells. The rate of apoptosis in the small intestine and colon was increased by treatment with BETA and GEN, but not by E2. BETA induced antiproliferative and proapoptotic activity also in SHAM animals. The effects were antagonized by the pure antiestrogen Fulvestrant. Polymerase chain reaction gene array analysis revealed that BETA resulted in the downregulation of the oncogene transformation-related protein 63 (p63). Our data indicate that activation of the ERβ by specific ERβ agonists and GEN induces antiproliferative and proapoptotic effects in the intestinal tract. This observation can be taken as an indication that intake of GEN and specific ERβ agonists may protect the ileal and colonic epithelium from tumor development via modulation of tissue homeostasis.
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Affiliation(s)
- B Schleipen
- Abt. Molekulare und Zelluläre Sportmedizin, Institut für Kreislaufforschung und Sportmedizin, Deutsche Sporthochschule Köln, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
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Leidig-Bruckner G, Roth HJ, Bruckner T, Lorenz A, Raue F, Frank-Raue K. Are commonly recommended dosages for vitamin D supplementation too low? Vitamin D status and effects of supplementation on serum 25-hydroxyvitamin D levels--an observational study during clinical practice conditions. Osteoporos Int 2011; 22:231-40. [PMID: 20556359 DOI: 10.1007/s00198-010-1214-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 01/19/2010] [Indexed: 12/14/2022]
Abstract
UNLABELLED Vitamin D deficiency is associated with increased fracture risk. The observational study aimed to investigate vitamin D status and supplementation in ambulatory patients. Only 20% of patients had optimal serum 25-hydroxyvitamin D [25(OH)D] levels. Commonly recommended dosages were insufficient to achieve clinically relevant increase of 25(OH)D levels. Higher dosages were safe and effective under clinical practice conditions. INTRODUCTION Vitamin D deficiency is associated with adverse health outcome. The study aimed to investigate vitamin D status and supplementation in ambulatory patients. METHODS Nine hundred seventy-five women and 188 men were evaluated for bone status from January 2008 to August 2008 within an observational study; 104 patients (n = 70 osteoporosis) received follow-up after 3 months. Dosage of vitamin D supplementation was documented and serum 25(OH)D and parathyroid hormone (PTH) determined. RESULTS In all patients (age, 60.4 ± 14.1 years), distribution of 25(OH)D was 56.3 ± 22.3 nmol/L (normal range, 52-182 nmol/L) and PTH 53.8 ± 67.5 ng/L (normal range, 11-43 ng/L). The proportion of patients with 25(OH)D < 25, 25 to <50, 50 to <75, ≥75 nmol/L was 7.5%, 33.3%, 38.9% and 20.2% in the total group and 20.1%, 38.5%, 30.8%, 10.6% at baseline in the follow-up group, respectively. After 3 months, 3.9% had still 25(OH)D < 25 nmol/L; only 12.5% achieved 25(OH)D ≥ 75 nmol/L. In osteoporosis patients, 25(OH)D increased more in those taking ≥1,500 (median, 3,000) IU vitamin D per day (33.1 ± 14.7 nmol/L) compared with ≤1,000 (median, 800) IU/day (10.6 ± 20.0 nmol/L) (p < 0.0008). PTH decreased more in patients taking ≥1,500 IU/day (-13.2 ± 15.2 ng/L) compared with ≤1,000 IU/day (-7.6 ± 19.2 ng/L; p = 0.29). 25(OH)D was negatively correlated to PTH (r = -0.49, p < 0.0001). An increase of 25(OH)D ≥ 75 nmol/L resulted in normalised PTH. CONCLUSION Supplementation with higher vitamin D dosages (2,000-3,000 IU/day) is required to achieve a relevant increase of 25(OH)D and normalisation of PTH.
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Affiliation(s)
- G Leidig-Bruckner
- Gemeinschaftspraxis für Endokrinologie, Nuklearmedizin und Humangenetik, Brückenstr. 21, 69120, Heidelberg, Germany.
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Doucette TA, Kong LY, Yang Y, Wei J, Wang J, Fuller GN, Heimberger AB, Rao G, Ajewung N, Kamnasaran D, Katz AM, Amankulor N, Squatrito M, Hambardzumyan D, Holland EC, Poschl J, Lorenz A, Von Bueren A, Li S, Peraud A, Tonn JC, Herms J, Xiang M, Rutkowski S, Kretzschmar H, Schuller U, Studebaker A, Raffel C, Aoki Y, Hashizume R, Ozawa T, Gupta N, James CD, Navis AC, Hamans BC, Claes A, Heerschap A, Wesseling P, Jeuken JW, Leenders WP, Agudelo PA, Williams S, Nowicki MO, Johnson J, Li PK, Chiocca EA, Lannutti JJ, Lawler SE, Viapiano MS, Bergeron J, Aliaga A, Bedell B, Soderquist C, Sonabend A, Lei L, Crisman C, Yun JP, Sisti J, Castelli M, Bruce JN, Canoll P, Kirsch M, Stelling A, Salzer R, Krafft C, Schackert G, Steiner G, Balvers RK, van den Hengel SK, Wakimoto H, Hoeben RC, Leenstra S, Dirven CM, Lamfers ML, Sabha NS, Agnihotri S, Wolf A, von Deimling A, Croul S, Guha A, Trojahn US, Lenferink A, Bedell B, O'Connor-McCourt M, Wakimoto H, Kanai R, Curry WT, Yip S, Barnard ZR, Mohapatra G, Stemmer-Rachamimov AO, Martuza RL, Rabkin SD, Binder ZA, Salmasi V, Lim M, Weingart J, Brem H, Olivi A, Riggins GJ, Gallia GL, Rong Y, Zhang Z, Gang C, Tucker-Burden C, Van Meir E, Brat DJ, Balvers RK, Kloezeman JJ, Kleijn A, French PJ, Dirven CM, Leenstra S, Lamfers ML, Balvers RK, Kloezeman JJ, Spoor JK, Dirven CM, Lamfers ML, Leenstra S, Bazzoli E, Fomchenko EI, Schultz N, Brennan C, DeAngelis LM, Holland EC, Nimer SD, Squatrito M, Mohyeldin A, Hsu W, Shah SR, Adams H, Shah P, Katuri L, Kosztowski T, Loeb DM, Wolinsky JP, Gokaskan ZL, Quinones-Hinojosa A, Daphu IK, Immervoll H, Bjerkvig R, Thorsen F, Caretti V, Idema S, Zondervan I, Meijer DH, Lagerweij T, Barazas M, Vos W, Hamans B, van der Stoop P, Hulleman E, van der Valk P, Bugiani M, Wesseling P, Vandertop WP, Noske D, Kaspers GJ, Molthoff C, Wurdinger T, Chow LM, Endersby R, Zhu X, Rankin S, Qu C, Zhang J, Ellison DW, Baker SJ, Tabar V, LaFaille F, Studer L. Tumor Models (In Vivo/In Vitro). Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Frank-Raue K, Döhring J, Scheumann G, Rondot S, Lorenz A, Schulze E, Dralle H, Raue F, Leidig-Bruckner G. New Mutations in the RET Protooncogene-L881V – Associated with Medullary Thyroid Carcinoma and -R770Q – in a Patient with Mixed Medullar/Follicular Thyroid Tumour. Exp Clin Endocrinol Diabetes 2009; 118:550-3. [DOI: 10.1055/s-0029-1241851] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sternfeld T, Lorenz A, Schmid M, Schlamp A, Demmelmair H, Koletzko B, Bogner J. [(13)C]Methionine breath test as a marker for hepatic mitochondrial function in HIV-infected patients. AIDS Res Hum Retroviruses 2009; 25:1243-8. [PMID: 20001311 DOI: 10.1089/aid.2009.0013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Metabolic disturbances such as dyslipidemia, lipodystrophy syndrome, visceral obesity, hyperlactatemia, diabetes mellitus, and hepatic steatosis have been recognized as serious complications in long-term antiretroviral-treated HIV-infected patients. The oxidative capacity of liver mitochondria plays a central role in their pathogenesis and can be analyzed using the [(13)C]methionine breath test. We analyzed hepatic mitochondrial function using the [(13)C]methionine breath test in antiretrovirally treated and untreated HIV-infected patients as well as HIV-negative controls. Patients with hepatic steatosis, hypertriglyceridemia, lipohypertrophy, and older age showed reduced methionine metabolism. Hepatic mitochondrial function is impaired in antiretroviral-treated HIV-infected patients with disturbances of lipid metabolism.
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Affiliation(s)
- T. Sternfeld
- II. Medizinische Klinik und Poliklinik, Infektionsambulanz, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - A. Lorenz
- Medizinische Klinik II, Klinikum Deggendorf, Deggendorf, Germany
| | - M. Schmid
- Department of Infectious Diseases, Medizinische Poliklinik, University Hospital of Munich, Downtown Campus, Munich, Germany
| | - A. Schlamp
- Department of Endocrinology and Diabetology, Medizinische Klinik, University Hospital of Munich, Downtown Campus, Munich, Germany
| | - H. Demmelmair
- Dr. von Haunersches Children's Hospital, Division of Metabolic Diseases and Nutritional Medicine, Ludwig-Maximilians University Munich, Munich, Germany
| | - B. Koletzko
- Dr. von Haunersches Children's Hospital, Division of Metabolic Diseases and Nutritional Medicine, Ludwig-Maximilians University Munich, Munich, Germany
| | - J.R. Bogner
- Department of Infectious Diseases, Medizinische Poliklinik, University Hospital of Munich, Downtown Campus, Munich, Germany
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Scheipers U, Lorenz A, Pesavento A, Ermert H, Sommerfeld HJ, Garcia-Schürmann M, Senge T, Philippou S. ULTRASCHALL-GEWEBECHARAKTERISIERUNG FÜR DIE PROSTATADIAGNOSTIK. BIOMED ENG-BIOMED TE 2009. [DOI: 10.1515/bmte.2001.46.s1.72] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hahn E, Riedlinger R, Bak M, Peschke P, Lorenz A, Zuna I, Gerlach L, Volm M, van Kaick G, Lorenz W. High Energy Pulsed Ultrasound (HEPUS): Cytotoxic effects on rodent tumors. BIOMED ENG-BIOMED TE 2009. [DOI: 10.1515/bmte.1988.33.s2.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lorenz A, Kitzerow HS, Schwuchow A, Kobelke J, Bartelt H. Photonic crystal fiber with a dual-frequency addressable liquid crystal: behavior in the visible wavelength range. Opt Express 2008; 16:19375-19381. [PMID: 19582031 DOI: 10.1364/oe.16.019375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Wave-guiding in the visible spectral range is investigated for a micro-structured crystal fiber filled with a dual-frequency addressable nematic liquid crystal mixture. The fiber exhibits a solid core surrounded by just 4 rings of cylindrical holes. Control of the liquid crystal alignment by anchoring agents permits relatively low attenuation. Samples with different anchoring conditions at the interface of the silica glass and the liquid crystal show different transmission properties and switching behavior. Polarization dependent and independent fiber optic switching is observed. Due to a dualfrequency addressing scheme, active switching to both states with enhanced and reduced transmission becomes possible for planar anchoring. Even a non-perfect fiber shows reasonable transmission and a variety of interesting effects.
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Affiliation(s)
- A Lorenz
- Department of Chemistry, University of Paderborn, Paderborn, Germany
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Kraeusslich J, Dubs C, Lorenz A, Tuennermann A. In-plane stress and strain components of epitaxially grown Zn:LiNbO 3thin films. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308081956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Scholz M, Lorenz A, Pesavento A, Brendel B, Khaled W, Engelhardt M, Pechlivanis I, Noack V, Harders A, Schmieder K. Current status of intraoperative real-time vibrography in neurosurgery. Ultraschall Med 2007; 28:493-497. [PMID: 17918047 DOI: 10.1055/s-2006-927359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
PURPOSE Intracranial lesions are often characterized by different elasticities. The aim of the present study was to test the application of vibrography during brain tumor surgery. MATERIALS AND METHODS The real-time vibrography system consisted of a conventional ultrasound system (Siemens Sonoline Omnia) with a custom-designed RF interface and a 6.5-MHz endocavity curved array (Siemens 6.5EC10). The RF data were digitized using a 50-MHz, 12-bit PCI analog/digital (A/D) converter for real-time or offline processing. Static compression was replaced by low-frequency axial vibration of the probe. A special applicator equipped with a stepping motor moved the ultrasonic probe and produced a low frequency mechanical vibration of 5-10 Hz with a vibration amplitude of 0.3 mm and slight preliminary compression (total<1 mm). The maximum application time was 60 sec. A pneumatic holding device (Unitrac, Aesculap, Tuttlingen, Germany) was used. RESULTS Brain tissue is normally color coded between red and orange. In this study 41 out of 45 tumors could be detected via vibrography. Two tumors could not be detected with this imaging technique: a glioblastoma at a depth of 2 cm and a metastasis at a depth of 3 cm. Two additional tumors were not recognized because of technical problems. In 4 cases tumors with strain values identical to those in brain tissue (coded red or orange) but easily identified by a peripheral zone of high strain (yellow) were found. Tumors with strain values higher than those measured in brain tissue coded yellow and were softer than brain during surgical intervention. Higher strain was found in 23 tumors. Tumors with strain values lower than those in cerebral tissue were found to be harder during surgery and coded brown or black. Lower strain was found in 10 cases. Four tumors were inhomogeneous and could not be assigned to one of the above groups. Mortality was 0%, morbidity 2.3%. One patient displayed transient paresis of the lower extremity due to microsurgical difficulties during the approach. In one patient minimal bleeding of the cortical surface occurred in a frontobasal tumor; however, no postoperative deficits were noted. CONCLUSION Vibrography is a new low-risk technique for intraoperative imaging. In low-grade astrocytomas and oligodendrogliomas, this additional technique can be used to control resection. In other cortical and subcortical tumors (e. g. metastases), it can provide an impression of the intratumoral elasticities.
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Affiliation(s)
- M Scholz
- Neurosurgery, Ruhr-University Bochum, Bochum.
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Herr F, Baal N, Reisinger K, Lorenz A, McKinnon T, Preissner KT, Zygmunt M. hCG in the Regulation of Placental Angiogenesis. Results of an In Vitro Study. Placenta 2007; 28 Suppl A:S85-93. [PMID: 17382384 DOI: 10.1016/j.placenta.2007.02.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2006] [Revised: 01/30/2007] [Accepted: 02/03/2007] [Indexed: 11/16/2022]
Abstract
Placental vascular development is essential for fetal growth and development. Inadequate placental vascular development is associated with early pregnancy losses and other pregnancy related pathologies. In addition to the ubiquitous, well-characterized angiogenic factors like vascular endothelial growth factor (VEGF) or basic fibroblast growth factor (bFGF), some pregnancy-specific factors (e.g. human chorionic gonadotropin (hCG), insulin-like growth factor-II (IGF-II) or alpha fetoprotein (AFP) were recently described to play a possible regulatory role in this process. In the present study we described an improved separation method for human placental microvascular endothelial cells (HPMVEC) and their functional characterization. Using the combination of enzymatic digestion and multistep immunomagnetic sorting with CD31 antibodies a model for villous vascularization was established. Isolated cells took up ac-dil-LDL, spontaneously formed capillary-like structures, and expressed common endothelial markers such as vascular endothelial growth factor receptor-2 (VEGFR-2), angiopoetin-1 and -2, Tie-2, CD144, thrombomodulin, and von Willebrand factor (vWF) as shown by RT-PCR, flow cytometry and Western blot analysis. The expression of the hCG/LH receptor in the placental vascular tree was verified both in vitro and in vivo. hCG stimulated proliferation of HPMVEC in a dose specific manner. While hCG alone had no significant effect on endothelial cell apoptosis, the combination of VEGF-A and hCG protected HPMVEC from staurosporine-induced apoptosis. hCG significantly stimulated sprout formation when compared to controls in a spheroid angiogenesis assay. Our results demonstrate a modified and reproducible method allowing studies of placental vascular development and provide new insights into the possible role of trophoblastic factors in this process.
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Affiliation(s)
- F Herr
- Department of Obstetrics and Gynecology, University of Greifswald, Greifswald, Germany
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Lorenz A, Elsner C, Hambsch J. Postoperative Pflege von Patienten mit hypoplastischen Linksherzsyndrom (HLHS) nach Norwood Stage 1 Operation. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
Homologous recombination is an important mechanism for the repair of double-strand breaks in DNA. One possible outcome of such repair is the reciprocal exchange or crossing over of DNA between chromosomes. Crossovers are beneficial during meiosis because, as well as generating genetic diversity, they promote proper chromosome segregation through the establishment of chiasmata. However, crossing over in vegetative cells can potentially result in loss of heterozygosity and chromosome rearrangements, which can be deleterious. Consequently, cells have evolved mechanisms to limit crossing over during vegetative growth while promoting it during meiosis. Here, we provide a brief review of how some of these mechanisms are thought to work.
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Affiliation(s)
- A Lorenz
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX13QU, UK
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Lorenz A, Elsner C, Hambsch J. Postoperative Pflege von Patienten mit hypoplastischen Linksherzsyndrom (HLHS) nach Norwood Stage 1 Operation. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Chappuis P, Portafaix C, Thomas E, Bertrand B, Walton R, Riccardo V, Baker R, Barlow I, Kaye A, Lorenz A, Durodier F. Design of a limiter for the JET EP ICRH antenna. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Khaled W, Reichling S, Bruhns OT, Boese H, Baumann M, Monkman G, Egersdoerfer S, Klein D, Tunayar A, Freimuth H, Lorenz A, Pessavento A, Ermert H. Palpation imaging using a haptic system for virtual reality applications in medicine. Stud Health Technol Inform 2004; 98:147-53. [PMID: 15544261 DOI: 10.1142/9789812702678_0055] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the field of medical diagnosis, there is a strong need to determine mechanical properties of biological tissue, which are of histological and pathological relevance. Malignant tumors are significantly stiffer than surrounding healthy tissue. One of the established diagnosis procedures is the palpation of body organs and tissue. Palpation is used to measure swelling, detect bone fracture, find and measure pulse, or to locate changes in the pathological state of tissue and organs. Current medical practice routinely uses sophisticated diagnostic tests through magnetic resonance imaging (MRI), computed tomography (CT) and ultrasound (US) imaging. However, they cannot provide direct measure of tissue elasticity. Last year we presented the concept of the first haptic sensor actuator system to visualize and reconstruct mechanical properties of tissue using ultrasonic elastography and a haptic display with electrorheological fluids. We developed a real time strain imaging system for tumor diagnosis. It allows biopsies simultaneously to conventional ultrasound B-Mode and strain imaging investigations. We deduce the relative mechanical properties by using finite element simulations and numerical solution models solving the inverse problem. Various modifications on the haptic sensor actuator system have been investigated. This haptic system has the potential of inducing real time substantial forces, using a compact lightweight mechanism which can be applied to numerous areas including intraoperative navigation, telemedicine, teaching and telecommunication.
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Affiliation(s)
- W Khaled
- Ruhr-University Bochum, Bochum, Germany
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Görlitzer K, Lorenz A. [Medium sized rings from alprenolol and oxprenolol]. Pharmazie 2004; 59:763-9. [PMID: 15544054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The N-allyl derivatives 2 formed from the beta-blockers 1, were acetylated to give the esters 5. The 1,5-benzoxazacycloundecine 6a and the 1,10,5-benzodioxazacyclododecine 7a were isolated by ring closing metathesis (RCM) of 5a and 5b, respectively, using Grubbs catalyst in the presence of titanium tetraisopropanolate. Alkaline hydrolysis yielded the alcohols 6b and 7b.
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Affiliation(s)
- K Görlitzer
- Institut für Pharmazeutische Chemie der Technischen Universität Braunschweig, Germany.
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