TY  - JOUR
A1  - Frede, Katja
A1  - Henze, Andrea
A1  - Khalil, Mahmoud
A1  - Baldermann, Susanne
A1  - Schweigert, Florian J.
A1  - Rawel, Harshadrai Manilal
T1  - Stability and cellular uptake of lutein-loaded emulsions
JF  - Journal of functional food
N2  - The carotenoid lutein can improve human health. Since only a fraction is absorbed from food, lutein supplementation might be recommended. Emulsions could be good carrier systems to improve the bioavailability of lutein. Six different emulsifier compositions were used in this study to prepare lutein-loaded emulsions: beta-lactoglobulin, beta-lactoglobulin/lecithin, Biozate 1, Biozate 1/lecithin, Been 20 and Tween 20/lecithin. The droplet size, resistance to creaming, lutein stability, cytotoxicity and lutein uptake by HT29 cells were investigated. The whey protein beta-lactoglobulin, the whey protein hydrolysate Biozate 1 and the combination with lecithin brought the most promising results. The small droplet sizes and resistance to creaming were an indication of physical stable emulsions. Furthermore, these emulsifiers prevented oxidation of lutein. The choice of emulsifier had a strong impact on the uptake by HT29 cells. The highest lutein absorption was observed with the combination of Biozate 1 and lecithin.
KW  - Lutein
KW  - Emulsion
KW  - Whey protein
KW  - Stability
KW  - Bioavailability
Y1  - 2014
U6  - https://doi.org/10.1016/j.jff.2014.03.011
SN  - 1756-4646
VL  - 8
SP  - 118
EP  - 127
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Fromm, Sabine
A1  - Beisswanger, Elena
A1  - Kaebohrer, Annemarie
A1  - Tenhagen, Bernd-Alois
T1  - Risk factors for MRSA in fattening pig herds - A meta-analysis using pooled data
JF  - Preventive veterinary medicine : an international journal on research and development in veterinary epidemiology, animal disease prevention and control, and animal health economics
N2  - The importance of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) as an infectious agent for humans has increased in recent years in Germany. Although it is well known that the prevalence of MRSA in pig farms is high, risk factors for the presence of MRSA in herds of fattening pigs are still poorly understood. The aim of this study was to evaluate available data from previous studies on MRSA in fattening pigs in a meta-analysis to answer the question: What are the factors associated with the occurrence of MRSA in fattening pig herds?
 The studies on MRSA in pigs that were identified by literature research were heterogeneous with respect to the risk factors investigated and the type of herds focused on. Therefore we decided to carry out a pooling analysis on herd level rather than a typical meta-analysis. Eligible herd data were identified based on the published literature and communication with the authors. The final data set covered 400 fattening pig herds from 10 different studies and 12 risk factors. The prevalence of MRSA in the 400 fattening pig herds was 53.5%.
 Data were analyzed using generalized estimating equations (GEE). The resulting multi-variate model confirmed previously identified risk factors for MRSA in pig herds (herd size and herd type). It also identified further risk factors: group treatment of fattening pigs with antimicrobial drugs (OR=1.79) and housing fattening pig herds on at least partially slatted floors (OR=2.39) compared to plain floor. In contrast, according to the model, fattening pig herds on farms keeping other livestock along with pigs were less likely to harbor MRSA (OR=0.54).
 The results underline the benefits from a pooling analysis and cooperative re-evaluation of published data. (C) 2014 The Authors. Published by Elsevier B.V.
KW  - Fattening pigs
KW  - Swine
KW  - MRSA
KW  - Methicillin resistant Staphylococcus aureus
KW  - Risk factor
KW  - Meta-analysis
KW  - Pooling analysis
KW  - Herd size
KW  - Herd type
KW  - Antimicrobial drugs
KW  - Slatted floor
KW  - Other livestock
KW  - Zoonoses
Y1  - 2014
U6  - https://doi.org/10.1016/j.prevetmed.2014.08.014
SN  - 0167-5877
SN  - 1873-1716
VL  - 117
IS  - 1
SP  - 180
EP  - 188
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Goetz, Klaus-Peter
A1  - Chmielewski, Frank M.
A1  - Homann, Thomas
A1  - Huschek, Gerd
A1  - Matzneller, Philipp
A1  - Rawel, Harshadrai Manilal
T1  - Seasonal changes of physiological parameters in sweet cherry (Prunus avium L.) buds
JF  - Scientia horticulturae : an international journal sponsored by the International Society for Horticultural Science
N2  - The transition from dormant stage to the beginning of growth was first obvious by markedly changes of the water content. The phase from green tip to tight cluster, with a length of only 4 days, was the period of the most physiological activity in single buds, because of the highest daily accumulation rates of fresh/dry weight, C, N. We assume a concentration dependant regulation of the member of the aspartate family (asparagine, aspartic acid, isoleucine) during dormancy, growth and development in sweet cherry buds. The ABA content showed 2011/12 a clear bimodal pattern which was at lower level similar in 2012/13, but not so strong incisive. In both years, the first peak was probably related to the end of endodormancy. However the ABA-isomer content showed in both seasons a unimodal pattern. The maximum of the ratio of ABA-isomer/ABA indicated the beginning of ontogenetic development which starts 3 and 2 weeks later, respectively. Our results suggest that ABA and the ABA-isomer in the sweet cherry buds regulate differentiated metabolic processes in the dormant stage and during bud growth and development. After replication in the season 2013/14 the estimated dates of release of endodormancy, beginning of ecodormancy and start of ontogenetic development will be used to validate and improve phenological models for the beginning of cherry blossom. (C) 2014 Elsevier B.V. All rights reserved.
KW  - Abscisic acid
KW  - Amino acids
KW  - Dormancy
KW  - Flower buds
KW  - Phenological modelling
KW  - Prunus avium L.
Y1  - 2014
U6  - https://doi.org/10.1016/j.scienta.2014.04.012
SN  - 0304-4238
SN  - 1879-1018
VL  - 172
SP  - 183
EP  - 190
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - THES
A1  - Guzman-Perez, Valentina
T1  - Effect of benzylglucosinolate on signaling pathways associated with type 2 diabetes prevention
T1  - Wirkung von benzylglucosinolate auf Signalwege mit Type 2 diabetes Prävention zugeordnet
N2  - Type 2 diabetes (T2D) is a health problem throughout the world. In 2010, there were nearly 230 million individuals with diabetes worldwide and it is estimated that in the economically advanced countries the cases will increase about 50% in the next twenty years. Insulin resistance is one of major features in T2D, which is also a risk factor for metabolic and cardiovascular complications. Epidemiological and animal studies have shown that the consumption of vegetables and fruits can delay or prevent the development of the disease, although the underlying mechanisms of these effects are still unclear. Brassica species such as broccoli (Brassica oleracea var. italica) and nasturtium (Tropaeolum majus) possess high content of bioactive phytochemicals, e.g. nitrogen sulfur compounds (glucosinolates and isothiocyanates) and polyphenols largely associated with the prevention of cancer. Isothiocyanates (ITCs) display their anti-carcinogenic potential by inducing detoxicating phase II enzymes and increasing glutathione (GSH) levels in tissues. In T2D diabetes an increase in gluconeogenesis and triglyceride synthesis, and a reduction in fatty acid oxidation accompanied by the presence of reactive oxygen species (ROS) are observed; altogether is the result of an inappropriate response to insulin. Forkhead box O (FOXO) transcription factors play a crucial role in the regulation of insulin effects on gene expression and metabolism, and alterations in FOXO function could contribute to metabolic disorders in diabetes. In this study using stably transfected human osteosarcoma cells (U-2 OS) with constitutive expression of FOXO1 protein labeled with GFP (green fluorescent protein) and human hepatoma cells HepG2 cell cultures, the ability of benzylisothiocyanate (BITC) deriving from benzylglucosinolate, extracted from nasturtium to modulate, i) the insulin-signaling pathway, ii) the intracellular localization of FOXO1 and iii) the expression of proteins involved in glucose metabolism, ROS detoxification, cell cycle arrest and DNA repair was evaluated. BITC promoted oxidative stress and in response to that induced FOXO1 translocation from cytoplasm into the nucleus antagonizing the insulin effect. BITC stimulus was able to down-regulate gluconeogenic enzymes, which can be considered as an anti-diabetic effect; to promote antioxidant resistance expressed by the up-regulation in manganese superoxide dismutase (MnSOD) and detoxification enzymes; to modulate autophagy by induction of BECLIN1 and down-regulation of the mammalian target of rapamycin complex 1 (mTORC1) pathway; and to promote cell cycle arrest and DNA damage repair by up-regulation of the cyclin-dependent kinase inhibitor (p21CIP) and Growth Arrest / DNA Damage Repair (GADD45). Except for the nuclear factor (erythroid derived)-like2 (NRF2) and its influence in the detoxification enzymes gene expression, all the observed effects were independent from FOXO1, protein kinase B (AKT/PKB) and NAD-dependent deacetylase sirtuin-1 (SIRT1). The current study provides evidence that besides of the anticarcinogenic potential, isothiocyanates might have a role in T2D prevention. BITC stimulus mimics the fasting state, in which insulin signaling is not triggered and FOXO proteins remain in the nucleus modulating gene expression of their target genes, with the advantage of a down-regulation of gluconeogenesis instead of its increase. These effects suggest that BITC might be considered as a promising substance in the prevention or treatment of T2D, therefore the factors behind of its modulatory effects need further investigation.
N2  - Diabetes mellitus Typ 2 stellt auf der ganzen Welt ein Gesundheitsproblem dar. Im Jahr 2010 waren annähernd 230 Millionen Personen weltweit an Diabetes erkrankt und innerhalb der nächsten 20 Jahre wird in industrialisierten Ländern eine Steigerung der Fälle um 50% erwartet. Eines der Hauptmerkmale des Typ 2 Diabetes ist die Insulinresistenz, die auch als Risikofaktor für metabolische und kardio-vaskuläre Komplikationen gilt. Epidemiologische Studien und Tierversuche haben ergeben, dass durch Verzehr von Gemüse und Obst eine Prävention oder Verzögerung der Entwicklung dieser Krankheit erreicht werden kann, jedoch sind die zugrunde liegenden Mechanismen dieser Effekte noch nicht aufgeklärt. Brassica Spezies wie Broccoli (Brassica oleracea var. italica) und Nasturtium (Tropaeolum majus) enthalten einen hohen Anteil an bioaktiven Pflanzen-inhaltsstoffen, wie z. B. stickstoff- und schwefelhaltige Verbindungen (Glukosinolate und Isothiocyanate) und Polyphenole, die bisher hauptsächlich mit der Prävention von Krebs assoziiert wurden. Isothiocyanate (ITCs) erreichen ihr antikanzerogenes Potential durch die Induktion von entgiftenden Phase II Enzymen und eine Anhebung der Glutathion (GSH)-Spiegel im Gewebe. Diabetes Typ2 geht einher mit einem Anstieg der Glukoneogenese und Triglycerid-Synthese, sowie einer Reduktion der Fettsäure-Oxidation in Verbindung mit erhöhten Spiegeln an reaktiven Sauerstoffspezies (ROS) insgesamt als Resultat einer unangemessenen Insulinantwort. Forkhead box O (FOXO) Transkriptionsfaktoren spielen eine wesentliche Rolle in der Regulation der Insulineffekte in Bezug auf die vermittelte Genexpression und den Metabolismus, wobei Veränderungen in der Funktion von FOXO zu metabolischen Entgleisungen im Diabetes beitragen können. In dieser Studie wurde unter Verwendung von stabil transfizierten humanen Osteosarkoma-Zellen (U-2 OS) mit konstitutiver Expression von GFP (grün fluoreszierendes Protein)-markiertem FOXO1 und humanen Hepatoma-Zellen (HepG2) die Wirkung von Benzylisothiocyanat (BITC), dessen Vorstufe Benzylglukosinolat aus Nasturtium isoliert wurde, in Zellkulturen evaluiert wie Modulationen der i) Insulin-Signal-Kaskade, ii) intrazellulären Lokalisation von FOXO1 und iii) Expression beteiligter Proteine am Glucose Metabolismus, der ROS Detoxifikation, Zellzyklus-Fixierung und DNA-Reparatur. BITC erzeugte oxidativen Stress und induzierte als Antwort darauf eine Translokation von FOXO1 aus dem Zytoplasma in den Zellkern antagonisierend zum Insulin-Effekt. Eine Stimultion mit BITC war in der Lage, die Expression von Enzymen der Gluconeogenese herunter zu regulieren, was als antidiabetogener Effekt betrachtet werden kann, eine antioxidative Resistenz durch Induktion der Mangan-Superoxid-Dismutase (MnSOD) und entgiftender Enzyme zu erzeugen, Autophagie zu modulieren durch Induktion von BECLIN1 und Herunterregulation des „mammalian target of rapamycin complex1 (mTORC1)-Stoffwechselwegs, den Zellzyklus zu fixieren und DNA-Reparatur zu induzieren durch Hochregulation des Cyclin- abhängigen Kinase- Inhibitors p21CIP und GADD45 (growth arrest and DNA damage repair). Mit Ausnahme des nuklearen Faktors (erythroid derived)-like2 (NRF2) und dessen Einfluss auf die Genexpression von Entgiftungsenzymen waren alle beobachteten Effekte unabhängig von FOXO1, Proteinkinase B (PKB/AKT) und der NAD-abhängigen Deacetylase Sirtuin-1 (SIRT1). Die gegenwärtige Studie liefert Anhaltspunkte dafür, dass Isothiocayanate neben dem antikanzerogenen Potential eine Rolle bei der Prävention von Typ 2 Diabetes spielen könnten. BITC-Stimulationen ahmen einen Fastenzustand nach, in dem kein Insulin-Signal ausgelöst wird, FOXO Proteine im Zellkern verbleiben und die Expression von Target-Genen modulieren, mit dem Vorteil einer Herunterregulation der Glukoneogenese anstelle seiner Zunahme. Diese Effekte legen nahe, dass BITC als vielversprechende Substanz zur Prävention und Behandlung von Typ 2 Diabetes angesehen werden könnte. Deshalb benötigen die Faktoren, die dessen modulatorische Effekte hervorrufen, weitere Untersuchungen.
KW  - FOXO1
KW  - Benzylisothiocyanat
KW  - Glukosinolaten
KW  - type 2 diabetes
KW  - Zellkulturen
KW  - FOXO1
KW  - benzylisothiocyanate
KW  - glucosinolates
KW  - type 2 diabetes
KW  - cell cuture
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-72351
ER  - 
TY  - CHAP
A1  - Henkel, Janine
A1  - Camargo, Rodolfo Gonzalez
A1  - Schanze, Nancy
A1  - Püschel, Gerhard Paul
T1  - The vicious circle of prostaglandin- and cytokine-dependent hepatic insulin resistance: a key role of prostaglandin E2
T2  - Diabetologia : journal of the European Association for the Study of Diabetes (EASD)
Y1  - 2014
SN  - 0012-186X
SN  - 1432-0428
VL  - 57
SP  - S241
EP  - S242
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Heunisch, Fabian
A1  - von Einem, Gina
A1  - Alter, Markus L.
A1  - Weist, Andreas
A1  - Dschietzig, Thomas
A1  - Kretschmer, Axel
A1  - Hocher, Berthold
T1  - Urinary ET-1 excretion after exposure to radio-contrast media in diabetic patients and patients with preexisting mild impaired renal function
JF  - Life sciences : molecular, cellular and functional basis of therapy
N2  - Aims: Contrast media-induced nephropathy (CIN) is associated with increased morbidity and mortality. The renal endothelin system has been associated with disease progression of various acute and chronic renal diseases. However, robust data coming from adequately powered prospective clinical studies analyzing the short and long-term impacts of the renal ET system in patients with CIN are missing so far. We thus performed a prospective study addressing this topic.
 Main methods: We included 327 patients with diabetes or renal impairment undergoing coronary angiography. Blood and spot urine were collected before and 24 h after contrast media (CM) application. Patients were followed for 90 days for major clinical events like need for dialysis, unplanned rehospitalization or death.
 Key findings: The concentration of ET-1 and the urinary ET-1/creatinine ratio decreased in spot urine after CM application (ET-1 concentration: 0.91 +/- 1.23pg/ml versus 0.63 +/- 1.03pg/ml, p<0.001; ET-1/creatinine ratio: 0.14 +/- 0.23 versus 0.09 +/- 0.19, p<0.001). The urinary ET-1 concentrations in patients with CIN decreased significantly more than in patients without CIN (-0.26 +/- 1.42pg/ml vs. -0.79 +/- 1.69pg/ml, p=0.041), whereas the decrease of the urinary ET-1/creatinine ratio was not significantly different (non-CIN patients: -0.05 +/- 0.30; CIN patients: -0.11 +/- 0.21, p=0.223). Urinary ET-1 concentrations as well as the urinary ET-1/creatinine ratio were not associated with clinical events (need for dialysis, rehospitalization or death) during the 90day follow-up after contrast media exposure. However, the urinary ET-1 concentration and the urinary ET-1/creatinine ratio after CM application were higher in those patients who had a decrease of GFR of at least 25% after 90days of follow-up.
 Significance: In general the ET-1 system in the kidney seems to be down-regulated after contrast media application in patients with moderate CIN risk. Major long-term complications of CIN (need for dialysis, rehospitalization or death) are not associated with the renal ET system. (C) 2014 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license.
KW  - Urinary ET-1
KW  - Clinical study
KW  - Radiocontrast media-induced nephropathy
KW  - Kidney
Y1  - 2014
U6  - https://doi.org/10.1016/j.lfs.2013.12.233
SN  - 0024-3205
SN  - 1879-0631
VL  - 118
IS  - 2
SP  - 440
EP  - 445
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Hocher, Berthold
T1  - More than genes: the advanced fetal programming hypothesis
JF  - Journal of reproductive immunology : the international journal for experimental and clinical reproductive immunobiology
N2  - Many lines of data, initial epidemiologic studies as well as subsequent extensive experimental studies, indicate that early-life events play a powerful role in influencing later suceptibility to certain chronic diseases. Such events might be over- or undernutrition, exposure to environmental toxins, but also changes in hormones, in particular stress hormones. Typically, those events are triggered by the environmental challenges of the mother. However, recent studies have shown that paternal environmental or nutritional factors affect the phenotype of the offspring as well. The maternal and paternal environmental factors act on the phenotype of the offspring via epigenetic modification of its genome. The advanced fetal programming hypothesis proposes an additional non-environmentally driven mechanism: maternal and also paternal genes may influence the maturating sperm, the oocyte, and later the embryo/fetus, leading to their epigenetic alteration. Thus, the observed phenotype of the offspring may be altered by maternal/paternal genes independent of the fetal genome. Meanwhile, several independent association studies in humans dealing with metabolic and neurological traits also suggest that maternal genes might affect the offspring phenotype independent of the transmission of that particular gene to the offspring. Considering the implications of this hypothesis, some conclusions drawn from transgenic or knockout animal models and based on the causality between a genetic alteration and a phenotype, need to be challenged. Possible implications for the development, diagnostic and therapy of human genetic diseases have to be investigated. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
KW  - Fetal programming
KW  - Advanced fetal programming hypothesis
Y1  - 2014
U6  - https://doi.org/10.1016/j.jri.2014.03.001
SN  - 0165-0378
VL  - 104
SP  - 8
EP  - 11
PB  - Elsevier
CY  - Clare
ER  - 
TY  - CHAP
A1  - Hocher, Berthold
A1  - Reichetzeder, Christoph
A1  - von Websky, Karoline
A1  - Tsuprykov, Oleg
A1  - Klein, T.
T1  - Dipeptidyl peptidase-4 inhibition in a rat model of ischaemia-reperfusion injury may accelerate tubular regeneration but does not improve glomerular filtration rate
T2  - Diabetologia : journal of the European Association for the Study of Diabetes (EASD)
Y1  - 2014
SN  - 0012-186X
SN  - 1432-0428
VL  - 57
SP  - S538
EP  - S538
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Imeri, Faik
A1  - Fallegger, Daniel
A1  - Zivkovic, Aleksandra
A1  - Schwalm, Stephanie
A1  - Enzmann, Gaby
A1  - Blankenbach, Kira
A1  - Heringdorf, Dagmar Meyer Zu
A1  - Homann, Thomas
A1  - Kleuser, Burkhard
A1  - Pfeilschifter, Josef
A1  - Engelhardt, Britta
A1  - Stark, Holger
A1  - Huwiler, Andrea
T1  - Novel oxazolo-oxazole derivatives of FTY720 reduce endothelial cell permeability, immune cell chemotaxis and symptoms of experimental autoimmune encephalomyelitis in mice
JF  - Neuropharmacology
N2  - The immunomodulatory FTY720 (fingolimod) is presently approved for the treatment of relapsing-remitting multiple sclerosis. It is a prodrug that acts by modulating sphingosine 1-phosphate (S1P) receptor signaling. In this study, we have developed and characterized two novel oxazolo-oxazole derivatives of FTY720, ST-968 and the oxy analog ST-1071, which require no preceding activating phosphorylation, and proved to be active in intact cells and triggered S1P(1) and S1P(3), but not S1P(2), receptor internalization as a result of receptor activation.
 Functionally, ST-968 and ST-1071 acted similar to FTY720 to abrogate S1P-triggered chemotaxis of mouse splenocytes, mouse T cells and human U937 cells, and reduced TNFa- and LPS-stimulated endothelial cell permeability. The compounds also reduced TNF alpha-induced ICAM-1 and VCAM-1 mRNA expression, but restored TNF alpha-mediated downregulation of PECAM-1 mRNA expression.
 In an in vivo setting, the application of ST-968 or ST-1071 to mice resulted in a reduction of blood lymphocytes and significantly reduced the clinical symptoms of experimental autoimmune encephalomyelitis (EAE) in C57BL/6 mice comparable to FTY720 either by prophylactic or therapeutic treatment. In parallel to the reduced clinical symptoms, infiltration of immune cells in the brain was strongly reduced, and in isolated tissues of brain and spinal cord, the mRNA and protein expressions of ICAM-1 and VCAM-1, as well as of matrix metalloproteinase-9 were reduced by all compounds, whereas PECAM-1 and tissue inhibitor of metalloproteinase TIMP-1 were upregulated.
 In summary, the data suggest that these novel butterfly derivatives of FTY720 could have considerable implication for future therapies of multiple sclerosis and other autoimmune diseases. (C) 2014 Elsevier Ltd. All rights reserved.
KW  - Fingolimod
KW  - ST-968
KW  - ST-1071
KW  - Sphingosine 1-phosphate
KW  - Endothelial cells
KW  - Permeability
KW  - Multiple sclerosis
Y1  - 2014
U6  - https://doi.org/10.1016/j.neuropharm.2014.05.012
SN  - 0028-3908
SN  - 1873-7064
VL  - 85
SP  - 314
EP  - 327
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Katsuno, Tsuyoshi
A1  - Kasuga, Hisae
A1  - Kusano, Yumi
A1  - Yaguchi, Yoshihiro
A1  - Tomomura, Miho
A1  - Cui, Jilai
A1  - Yang, Ziyin
A1  - Baldermann, Susanne
A1  - Nakamura, Yoriyuki
A1  - Ohnishi, Toshiyuki
A1  - Mase, Nobuyuki
A1  - Watanabe, Naoharu
T1  - Characterisation of odorant compounds and their biochemical formation in green tea with a low temperature storage process
JF  - Food chemistry
N2  - We produced low temperature (15 degrees C) processed green tea (LTPGT) with higher aroma contents than normal green tea (Sencha). Normal temperature processed green tea (NTPGT), involved storing at 25 degrees C, and Sencha had no storing process. Sensory evaluation showed LTPGT had higher levels of floral and sweet odorants than NTPGT and Sencha. Aroma extract dilution analysis and gas chromatography-mass spectrometry-olfactometry indicated LTPGT had 12 aroma compounds with high factor dilution values (FD). Amongst LTPGT's 12 compounds, indole, jasmine lactone, cis-jasmone, coumarin, and methyl epijasmonate contributed to floral, fruity and sweet characters. In particular, indole increased initially, peaking at 16 h, then gradually decreased; Feeding experiments suggested [N-15]indole and [N-15]oxygenated indoles (OX-indoles) were produced from [N-15]anthranilic acid. We proposed the increase in indole was due to transformation of anthranilic acid during the 16 h storage and the subsequent decline in indole level was due to its conversion to OX-indoles.
KW  - Odorant compounds
KW  - Camellia sinensis
KW  - Tea leaves
KW  - Indole
KW  - [N-15]Indole
KW  - [N-15]Anthranilic acid
KW  - Metabolome analysis
Y1  - 2014
U6  - https://doi.org/10.1016/j.foodchem.2013.10.069
SN  - 0308-8146
SN  - 1873-7072
VL  - 148
SP  - 388
EP  - 395
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Keller, Johannes
A1  - Catala-Lehnen, Philip
A1  - Huebner, Antje K.
A1  - Jeschke, Anke
A1  - Heckt, Timo
A1  - Lueth, Anja
A1  - Krause, Matthias
A1  - Koehne, Till
A1  - Albers, Joachim
A1  - Schulze, Jochen
A1  - Schilling, Sarah
A1  - Haberland, Michael
A1  - Denninger, Hannah
A1  - Neven, Mona
A1  - Hermans-Borgmeyer, Irm
A1  - Streichert, Thomas
A1  - Breer, Stefan
A1  - Barvencik, Florian
A1  - Levkau, Bodo
A1  - Rathkolb, Birgit
A1  - Wolf, Eckhard
A1  - Calzada-Wack, Julia
A1  - Neff, Frauke
A1  - Gailus-Durner, Valerie
A1  - Fuchs, Helmut
A1  - de Angelis, Martin Hrabe
A1  - Klutmann, Susanne
A1  - Tsourdi, Elena
A1  - Hofbauer, Lorenz C.
A1  - Kleuser, Burkhard
A1  - Chun, Jerold
A1  - Schinke, Thorsten
A1  - Amling, Michael
T1  - Calcitonin controls bone formation by inhibiting the release of sphingosine 1-phosphate from osteoclasts
JF  - Nature Communications
N2  - The hormone calcitonin (CT) is primarily known for its pharmacologic action as an inhibitor of bone resorption, yet CT-deficient mice display increased bone formation. These findings raised the question about the underlying cellular and molecular mechanism of CT action. Here we show that either ubiquitous or osteoclast-specific inactivation of the murine CT receptor (CTR) causes increased bone formation. CT negatively regulates the osteoclast expression of Spns2 gene, which encodes a transporter for the signalling lipid sphingosine 1-phosphate (S1P). CTR-deficient mice show increased S1P levels, and their skeletal phenotype is normalized by deletion of the S1P receptor S1P(3). Finally, pharmacologic treatment with the nonselective S1P receptor agonist FTY720 causes increased bone formation in wild-type, but not in S1P(3)-deficient mice. This study redefines the role of CT in skeletal biology, confirms that S1P acts as an osteoanabolic molecule in vivo and provides evidence for a pharmacologically exploitable crosstalk between osteoclasts and osteoblasts.
Y1  - 2014
U6  - https://doi.org/10.1038/ncomms6215
SN  - 2041-1723
VL  - 5
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - THES
A1  - Lang, Iris Scarlett
T1  - Fetal programming of growth and metabolism by maternal dietary composition
BT  - effects of high and low dietary protein:carbohydrate ratios in pregnant primiparous sows
Y1  - 2014
ER  - 
TY  - JOUR
A1  - Langer, Henning
A1  - Carlsohn, Anja
T1  - Effects of different dietary proteins and amino acids on skeletal muscle hypertrophy in young adults after resistance exercise: A systematic review
JF  - Strength and conditioning journal
N2  - THIS ARTICLE REVIEWS THE AVAILABLE LITERATURE ON WHICH PROTEINS, AMINO ACIDS, OR COMBINATION OF BOTH SEEM TO BE OPTIMAL TO ENHANCE HYPERTROPHY AFTER RESISTANCE EXERCISE IN YOUNG ADULTS. DEPENDING ON THE CONTENT OF ESSENTIAL AMINO ACIDS AND PARTICULARLY LEUCINE, EITHER AN IMMEDIATE INGESTION OF similar to 20 G MILK PROTEIN FOLLOWED BY A SIMILAR AMOUNT similar to 1 HOUR LATER, OR A SINGLE BOLUS OF similar to 40 G SEEMS TO BE SUITABLE. GREATER AMOUNTS MIGHT BE NECESSARY IF A PROTEIN OF LOWER QUALITY IS CHOSEN ( I. E., PLANT-BASED PROTEINS) TO MATCH THE REQUIRED AMINO ACID QUANTITIES AND FACILITATE MUSCLE GROWTH.
Y1  - 2014
SN  - 1524-1602
SN  - 1533-4295
VL  - 36
IS  - 3
SP  - 33
EP  - 42
PB  - Lippincott Williams & Wilkins
CY  - Philadelphia
ER  - 
TY  - JOUR
A1  - Li, Jian
A1  - Chen, You-Peng
A1  - Dong, Yun-Peng
A1  - Yu, Cal-Hong
A1  - Lu, Yong-Ping
A1  - Xiao, Xiao-Min
A1  - Hocher, Berthold
T1  - The impact of umbilical blood flow regulation on fetal development differs in diabetic and non-diabetic pregnancy
JF  - Kidney & blood pressure research : official organ of the Gesellschaft für Nephrologie
N2  - Background/Aims: Diabetes is well-known to influence endothelial function. Endothelial function and blood flow regulation might be different in diabetic and non-diabetic pregnancy. However, the impact of umbilical blood flow regulation in gestational diabetes on fetal development is unknown so far. Methods: In a prospective birth cohort study, we analyzed the association of the umbilical artery Doppler indices (pulsatility index, resistance index and systolic/diastolic ratio) and fetal size measures (biparietal diameter, head circumference, abdominal circumference, femur length and birth weight) in 519 non-gestational diabetes mellitus pregnancies (controls) and 226 gestational diabetes mellitus pregnancies in middle (day 160.32 +/- 16.29 of gestation) and late (day 268.12 +/- 13.04 of gestation) pregnancy. Results: Multiple regression analysis considering confounding factors (gestational day of ultrasound examination, offspring sex, maternal body mess index before pregnancy, maternal age at delivery, maternal body weight at delivery and maternal hypertension) showed that umbilical artery Doppler indices (pulsatility index, resistance index and systolic/diastolic ratio) were associated with fetal head circumference and femur length in middle gestational diabetes mellitus pregnancy but not in non-gestational diabetes mellitus pregnancy. Head circumference, biparietal diameter, abdominal circumference and femur length in mid gestation were smaller in fetus of gestational diabetes mellitus pregnancy versus non-gestational diabetes mellitus pregnancy. In contrast to non-gestational diabetes mellitus pregnancy in late gestation, umbilical artery Doppler indices in gestational diabetes mellitus pregnancy were not associated with ultrasound measures of fetal growth. Birth weight was slightly increased in gestational diabetes mellitus pregnancy as compared to non-gestational diabetes mellitus pregnancy. Conclusions: The impact of umbilical blood flow on fetal growth is time dependent in human gestational diabetes mellitus and non-gestational diabetes mellitus pregnancy. In gestational diabetes mellitus pregnancy umbilical blood flow is critical for organ development in much earlier stages of pregnancy as compared to non-gestational diabetes mellitus pregnancy. The physiological and molecular pathways why there is a catch up growth in later times of gestational diabetes mellitus pregnancy resulting in larger gestational diabetes mellitus babies at birth needs to be addressed in further studies.
KW  - Umbilical artery Doppler
KW  - Blood flow resistance
KW  - Gestational diabetes mellitus
KW  - Fetal development
Y1  - 2014
U6  - https://doi.org/10.1159/000355815
SN  - 1420-4096
SN  - 1423-0143
VL  - 39
IS  - 4
SP  - 369
EP  - 377
PB  - Karger
CY  - Basel
ER  - 
TY  - JOUR
A1  - Liang, Xu-Jing
A1  - Huang, Si-Min
A1  - Li, Jian-Ping
A1  - Zhu, Xian-Nv
A1  - Lu, Yong-Ping
A1  - Hocher, Berthold
A1  - Chen, You-Peng
T1  - Hepatic impairment induced by scrub typhus is associated with new onset of renal dysfunction
JF  - Clinical laboratory : the peer reviewed journal for clinical laboratories and laboratories related to blood transfusion
N2  - Background: Scrub typhus is a potentially fatal infectious disease caused by Orientia tsutsugamushi. There is little attention given to hepatic impairment in the adults with scrub typhus. This study investigated the incidence and the prognostic implications of hepatic impairment in patients with scrub typhus.
 Methods: We retrospectively reviewed a total of 143 adult patients with scrub typhus who were admitted between January 1999 and December 2010 in Guangdong province, China. The patients were divided into three groups, e.g., normal, mild, and moderate to severe groups based on the elevated serum ALT and/or total bilirubin levels. Furthermore, clinical characteristics and prognosis of the patient groups were compared.
 Results: 109 patients (76.2%) had abnormal liver function. Among the patients with hepatic impairment 45 cases (31.4%), 54 cases (37.8%), and 10 cases (7.0%) had mild, moderate, and severe hepatic damage, respectively. The moderate to severe hepatic impairment group had higher levels of serum creatinine compared with that of normal hepatic function. The incidence of new onset of renal dysfunction - defined as peak serum creatinine >= 176 mu mol/L during hospital stay with no evidence of renal disease prior hospitalization - was 0% in the mild hepatic impairment group, 8.9% in the moderate hepatic impairment group, and 21.9% in the severe hepatic impairment group, (p = 0.005 for trend). Additionally, the patients with hepatic impairment (n = 109) had higher incidences of episodes of thrombocytopenia (45.9% vs. 8.82%, p < 0.001), hypoalbuminemia (50.5% vs. 11.8%, p < 0.001), new onset of renal dysfunction (16.5% vs. 0.0%, p = 0.011), and electrocardiogram abnormality (28.4% vs. 8.82%, p = 0.019) than the patients without hepatic impairment.
 Conclusions: The degree of hepatic impairment induced by scrub typhus is associated with new onset of renal dysfunction.
KW  - hepatic impairment
KW  - renal dysfunction
KW  - complication
KW  - outcome
KW  - scrub typhus
Y1  - 2014
U6  - https://doi.org/10.7754/Clin.Lab.2013.121203
SN  - 1433-6510
VL  - 60
IS  - 1
SP  - 63
EP  - 68
PB  - Clin Lab Publ., Verl. Klinisches Labor
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Longardt, Ann Carolin
A1  - Schmiedchen, B.
A1  - Raila, Jens
A1  - Schweigert, Florian J.
A1  - Obladen, M.
A1  - Buehrer, Christoph
A1  - Loui, A.
T1  - Characterization of the vitamin A transport in preterm infants after repeated high-dose vitamin A injections
JF  - European journal of clinical nutrition
N2  - BACKGROUND/OBJECTIVES: Preterm infants have low vitamin A stores at birth, and parenteral administration of high-dose vitamin A reduces pulmonary morbidity. The aim was to characterize vitamin A transport and status.
 SUBJECTS/METHODS: Prospective study of 69 preterm infants (median birth weight 995 g, gestational age 28 weeks), in which 51 received 5000 IU vitamin A three times per week intramuscular (i.m.) for 4 weeks and 18 infants without i.m. vitamin A served as controls. Serum retinol, retinyl palmitate, total retinol-binding protein 4 (RBP4), retinol-unbound RBP4 (apo-RBP4) and transthyretin concentrations were determined at days 3 (D3) and 28 (D28) of life.
 RESULTS: D3 retinol concentrations were low for the entire group (382 (285/531) nmol/l; median/interquartile range) and unrelated to gestational age. D28 retinol was unchanged in controls (382 (280/471) nmol/l), but increased in the vitamin A group (596 (480/825) nmol/l; P < 0.001). A similar pattern was observed for RBP4. The calculated retinol-to-RBP4 ratio rose in vitamin A infants (D3: 0.81 (0.57/0.94), D28: 0.98 (0.77/1.26); P < 0.01) but not in controls. In the vitamin A group, the retinol-to-RBP4 ratio was 41 in 15% of all infants on D3 and in 45% of infants on D28, but was <= 1 in all, but one, controls on D28.
 CONCLUSIONS: In preterm infants receiving a 4-week course of high-dose i. m. vitamin A, serum retinol concentrations increased by 55%, with molar concentrations of retinol exceeding those of RBP4 in 45% of the infants suggesting transport mechanisms other than RBP4.
Y1  - 2014
U6  - https://doi.org/10.1038/ejcn.2014.202
SN  - 0954-3007
SN  - 1476-5640
VL  - 68
IS  - 12
SP  - 1300
EP  - 1304
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - JOUR
A1  - Lu, Yong-Ping
A1  - Lung, Xu-Jing
A1  - Xiao, Xiao-Min
A1  - Huang, Si-Min
A1  - Liu, Zhi-Wei
A1  - Li, Jian
A1  - Hocher, Berthold
A1  - Chen, You-Peng
T1  - Telbivudine during the second and third trimester of pregnancy interrupts HBV intrauterine transmission: a systematic review and meta-analysis
JF  - Clinical laboratory : the peer reviewed journal for clinical laboratories and laboratories related to blood transfusion
N2  - Beckground: Evaluate the efficacy and safety of telbivudine during the 2nd and 3rd trimester of pregnancy in intrauterine transmission of hepatitis B virus (HBV). Based on the principle of Cochrane systematic reviews, a database was constructed from Medline, EMBASE, Cochrane Library, the US National Science Digital Library (NSDL), the China Biological Medicine Database (CBM-disc), and contact with Chinese experts in the field from November 2006 to February 2013.
 Results: Either the Mantel-Haenszel or Inverse Variance fixed-effects model or Mantel-Haenszel or Inverse Variance random-effects model was applied for all analyses indicated by odds ratio (OR) and 95% confidence interval (CI). The meta-analysis based on new onset of HBsAg seropositivity of infants at 6 - 12 months postpartum revealed that the control group had an intrauterine transmission rate of 8.25 - 42.31%. This rate was reduced to 0 - 14.29% in the telbivudine treatment group (OR 0.09, 95% CI 0.04 - 0.22, including seven trials, p < 0.001). The rates of intrauterine transmission based on new onset of HBV DNA seropositivity of infants at 6 - 12 months postpartum were 8.25 - 19.23% in the control group and 0 - 3.57% in the treatment group (OR 0.07, 95% CI 0.02 - 0.22, p < 0.001, including only five trials, since two trials had no data on HBV DNA in infants). With the exception of CK elevations, adverse effect frequencies were similar in both groups.
 Conclusions: Telbivudine is an effective and safe drug for preventing intrauterine transmission of HBV.
KW  - telbivudine
KW  - meta-analysis
KW  - intrauterine
KW  - transmission of hepatitis B virus (HBV)
KW  - clinical studies
KW  - safety efficacy
Y1  - 2014
U6  - https://doi.org/10.7754/Clin.Lab.2013.130408
SN  - 1433-6510
VL  - 60
IS  - 4
SP  - 571
EP  - 586
PB  - Clin Lab Publ., Verl. Klinisches Labor
CY  - Heidelberg
ER  - 
TY  - GEN
A1  - Mayer, Lena S.
A1  - Uciechowski, Peter
A1  - Meyer, Sören
A1  - Schwerdtle, Tanja
A1  - Rink, Lothar
A1  - Haase, Hajo
T1  - Differential impact of zinc deficiency on phagocytosis, oxidative burst, and production of pro-inflammatory cytokines by human monocytes
N2  - Zinc deficiency has a fundamental influence on the immune defense, with multiple effects on different immune cells, resulting in a major impairment of human health. Monocytes and macrophages are among the immune cells that are most fundamentally affected by zinc, but the impact of zinc on these cells is still far from being completely understood. Therefore, this study investigates the influence of zinc deficiency on monocytes of healthy human donors. Peripheral blood mononuclear cells, which include monocytes, were cultured under zinc deficient conditions for 3 days. This was achieved by two different methods: by application of the membrane permeable chelator N,N,N0´,N0´-tetrakis-(2-pyridylmethyl)ethylenediamine (TPEN) or by removal of zinc from the culture medium using a CHELEX 100 resin. Subsequently, monocyte functions were analyzed in response to Escherichia coli, Staphylococcus aureus, and Streptococcus pneumoniae. Zinc depletion had differential effects. On the one hand, elimination of bacterial pathogens by phagocytosis and oxidative burst was elevated. On the other hand, the production of the inflammatory cytokines tumor necrosis factor (TNF)-a and interleukin (IL)-6 was reduced. This suggests that monocytes shift from intercellular communication to basic innate defensive functions in response to zinc deficiency. These results were obtained regardless of the method by which zinc deficiency was achieved. However, CHELEX-treated medium strongly augmented cytokine production, independently from its capability for zinc removal. This side-effect severely limits the use of CHELEX for investigating the effects of zinc deficiency on innate immunity.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 281 
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-99405
ER  - 
TY  - JOUR
A1  - Meyer, Sören
A1  - Matissek, M.
A1  - Mueller, S. M.
A1  - Taleshi, M. S.
A1  - Ebert, Franziska
A1  - Francesconi, Kevin A.
A1  - Schwerdtle, Tanja
T1  - In vitro toxicological characterisation of three arsenic-containing hydrocarbons
JF  - Metallomics : integrated biometal science
N2  - Arsenic-containing hydrocarbons are one group of fat-soluble organic arsenic compounds (arsenolipids) found in marine fish and other seafood. A risk assessment of arsenolipids is urgently needed, but has not been possible because of the total lack of toxicological data. In this study the cellular toxicity of three arsenic-containing hydrocarbons was investigated in cultured human bladder (UROtsa) and liver (HepG2) cells. Cytotoxicity of the arsenic-containing hydrocarbons was comparable to that of arsenite, which was applied as the toxic reference arsenical. A large cellular accumulation of arsenic, as measured by ICP-MS/MS, was observed after incubation of both cell lines with the arsenolipids. Moreover, the toxic mode of action shown by the three arsenic-containing hydrocarbons seemed to differ from that observed for arsenite. Evidence suggests that the high cytotoxic potential of the lipophilic arsenicals results from a decrease in the cellular energy level. This first in vitro based risk assessment cannot exclude a risk to human health related to the presence of arsenolipids in seafood, and indicates the urgent need for further toxicity studies in experimental animals to fully assess this possible risk.
Y1  - 2014
U6  - https://doi.org/10.1039/c4mt00061g
SN  - 1756-5901
SN  - 1756-591X
VL  - 6
IS  - 5
SP  - 1023
EP  - 1033
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Neuber, Corinna
A1  - Schumacher, Fabian
A1  - Gulbins, Erich
A1  - Kleuser, Burkhard
T1  - Method to simultaneously determine the sphingosine 1-phosphate breakdown product (2E)-hexadecenal and its fatty acid derivatives using isotope-dilution HPLC-electrospray ionization-quadrupole/time-of-flight mass spectrometry
JF  - Analytical chemistry
N2  - Sphingosine 1-phosphate (S1P), a bioactive lipid involved in various physiological processes, can be irreversibly degraded by the membrane-bound S1P lyase (S1PL) yielding (2E)-hexadecenal and phosphoethanolamine. It is discussed that (2E)-hexadecenal is further oxidized to (2E)-hexadecenoic acid by the long-chain fatty aldehyde dehydrogenase ALDH3A2 (also known as FALDH) prior to activation via coupling to coenzyme A (CoA). Inhibition or defects in these enzymes, S1PL or FALDH, result in severe immunological disorders or the Sjogren-Larsson syndrome, respectively. Hence, it is of enormous importance to simultaneously determine the S1P breakdown product (2E)-hexadecenal and its fatty acid metabolites in biological samples. However, no method is available so far. Here, we present a sensitive and selective isotope-dilution high performance liquid chromatographyelectrospray ionizationquadrupole/time-of-flight mass spectrometry method for simultaneous quantification of (2E)-hexadecenal and its fatty acid metabolites following derivatization with 2-diphenylacetyl-1,3-indandione-1-hydrazone and 1-ethyl-3-(3-(dimethylamino)propyl)carbodiimide. Optimized conditions for sample derivatization, chromatographic separation, and MS/MS detection are presented as well as an extensive method validation. Finally, our method was successfully applied to biological samples. We found that (2E)-hexadecenal is almost quantitatively oxidized to (2E)-hexadecenoic acid, that is further activated as verified by cotreatment of HepG2 cell lysates with (2E)-hexadecenal and the acyl-CoA synthetase inhibitor triacsin C. Moreover, incubations of cell lysates with deuterated (2E)-hexadecenal revealed that no hexadecanoic acid is formed from the aldehyde. Thus, our method provides new insights into the sphingolipid metabolism and will be useful to investigate diseases known for abnormalities in long-chain fatty acid metabolism, e.g., the Sjogren-Larsson syndrome, in more detail.
Y1  - 2014
U6  - https://doi.org/10.1021/ac501677y
SN  - 0003-2700
SN  - 1520-6882
VL  - 86
IS  - 18
SP  - 9065
EP  - 9073
PB  - American Chemical Society
CY  - Washington
ER  -