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Hochecker B, Molinski N, Matt K, Meßmer A, Scherer M, von Ardenne A, Bergemann J. Heat treatment in health and disease: How water-filtered infrared-A (wIRA) irradiation affects key cellular mechanisms in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients compared to healthy donors. J Therm Biol 2024; 120:103813. [PMID: 38412735 DOI: 10.1016/j.jtherbio.2024.103813] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 12/22/2023] [Accepted: 02/14/2024] [Indexed: 02/29/2024]
Abstract
Heat treatment or hyperthermia is a promising therapy for many diseases, especially cancer, and can be traced back thousands of years. Despite its long history, little is known about the cellular and molecular effects of heat on human cells. Therefore, we investigated the impact of water-filtered infrared-A (wIRA) irradiation (39 °C, 60 min) on key cellular mechanisms, namely autophagy, mitochondrial function and mRNA expression, in human fibroblasts and peripheral blood mononuclear cells (PBMCs) from healthy donors and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients. Our results show an induction of autophagy in healthy fibroblasts and PBMCs from healthy donors and ME/CFS patients. ME/CFS patients have higher mitochondrial function compared to healthy donors. The wIRA treatment leads to a slight reduction in mitochondrial function in PBMCs from ME/CFS patients, thereby approaching the level of mitochondrial function of healthy donors. Furthermore, an activation of the mRNA expression of the autophagy-related genes MAP1LC3B and SIRT1 as well as for HSPA1, which codes for a heat shock protein, can be observed. These results confirm an impact of heat treatment in human cells on key cellular mechanisms, namely autophagy and mitochondrial function, in health and disease, and provide hope for a potential treatment option for ME/CFS patients.
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Affiliation(s)
- Barbara Hochecker
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
| | - Noah Molinski
- Von Ardenne Institute of Applied Medical Research GmbH, Dresden, Germany.
| | - Katja Matt
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
| | - Alica Meßmer
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
| | - Melanie Scherer
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
| | | | - Jörg Bergemann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
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Schöller-Mann A, Matt K, Hochecker B, Bergemann J. Ex vivo Assessment of Mitochondrial Function in Human Peripheral Blood Mononuclear Cells Using XF Analyzer. Bio Protoc 2021; 11:e3980. [PMID: 33889674 PMCID: PMC8054202 DOI: 10.21769/bioprotoc.3980] [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: 09/04/2020] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 11/02/2022] Open
Abstract
Cellular health and function, as we know today, depend on a large extent on mitochondrial function. The essential function of mitochondria is the energy production, more precisely ATP production, via oxidative phosphorylation. Mitochondrial energy production parameters therefore represent important biomarkers. Studies on human cells have mainly been performed on in vitro cell cultures. However, peripheral blood mononuclear cells (PBMCs) are particularly suitable for such examinations. That's why this protocol describes a method to measure key parameters of mitochondrial function in freshly isolated PBMCs with the latest technology, the XF Analyzer. For this ex vivo approach PBMCs are first isolated out of human anticoagulated blood. Next, they are attached to the surface of special microplates pre-coated with Poly-D-Lysine. During the subsequent measurement of oxygen consumption rate (OCR) as well as extracellular acidification rate (ECAR) the stress reagents oligomycin, carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (FCCP), rotenone and antimycin A are injected. Several mitochondrial parameters can be calculated from the results obtained. The application of this protocol allows the analysis of various influences, such as pharmaceuticals or environmental factors, on human cells.
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Affiliation(s)
- Alica Schöller-Mann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Katja Matt
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Barbara Hochecker
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Jörg Bergemann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
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Matt K, Hochecker B, Schöller-Mann A, Bergemann J. mRNA expression of ageing-associated genes in calorie reduction is subject to donor variability and can be induced by calorie restriction mimetics. Nutr Health 2020; 26:253-262. [PMID: 32552390 DOI: 10.1177/0260106020932732] [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] [Indexed: 11/16/2022]
Abstract
BACKGROUND Finding ways to a healthier ageing are increasingly becoming the focus of geriatric research. One way to accomplish this could be calorie restriction, as this is known to positively influence the ageing of model organisms. AIM The aim of this study was to investigate the influence of calorie reduction (F. X. Mayr therapy) and of the calorie restriction mimetics resveratrol and spermidine on the expression of ageing-associated genes. METHODS mRNA expression in peripheral blood mononuclear cells (PBMCs) of 18 participants taking part in an F. X. Mayr therapy was analysed. The PBMCs of one additional participant were treated ex vivo with spermidine or resveratrol. mRNA expression of SIRT1, SIRT3, FOXO3 and SOD2 was determined for these two calorie restriction mimetics. For the F. X. Mayr therapy samples, mRNA of XPA was analysed additionally. RESULTS mRNA expression of the ageing-associated genes showed a distinct donor variation during F. X. Mayr therapy, with a significant increase in mRNA expression of SIRT1. Expression of XPA was similar to SIRT1, with a significant correlation at the last time point tested. Spermidine treatment of PBMCs resulted in a significantly increased expression of all genes tested, whereas resveratrol treatment caused a significant increase of SIRT3, FOXO3 and SOD2 mRNA expression. CONCLUSIONS By increasing SIRT1 and XPA mRNA expression, calorie reduction in the form of F. X. Mayr therapy could contribute to a healthier ageing; however, the donor variability observed showed that not everyone benefited from this. Calorie restriction mimetics may be an option for promote healthier ageing for those who do not benefit from calorie reduction.
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Affiliation(s)
- Katja Matt
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Barbara Hochecker
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Alica Schöller-Mann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Jörg Bergemann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
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Schöller-Mann A, Matt K, Schniertshauer D, Hochecker B, Bergemann J. 12 days of in vivo caloric reduction can improve important parameters of aging in humans. Mech Ageing Dev 2020; 188:111238. [PMID: 32272119 DOI: 10.1016/j.mad.2020.111238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 09/20/2019] [Revised: 03/13/2020] [Accepted: 03/26/2020] [Indexed: 01/16/2023]
Abstract
Caloric reduction (CR) is considered as the most reasonable intervention to delay aging and age-related diseases. Numerous studies in various model organisms provide the main basis for this hypothesis. Human studies exist, but they differ widely in study design, characteristics of test persons and study outcome. In this study we investigated CR in humans on a molecular level to gain a better understanding in these processes. For that purpose, we analyzed human peripheral blood mononuclear cells of healthy people fasting according to F.X. Mayr. In a previous study our group could show a significantly improved DNA repair capacity after fasting. Here we were able to confirm these findings despite a slightly modified fasting therapy. Furthermore, the function of the mitochondrial respiratory chain and the mRNA levels of the mitochondria-associated genes SIRT3 and NDUFS1 were significantly affected by CR. However, these changes were only detectable in people who exhibited no improvement in DNA repair capacity. In contrast to that we could not observe any changes in ROS levels, mitochondrial DNA copy number and non-mitochondrial respiration. Altogether our results reveal that CR in form of F. X. Mayr therapy is able to positively influence several cellular parameters and especially mitochondrial function.
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Affiliation(s)
- Alica Schöller-Mann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany.
| | - Katja Matt
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Daniel Schniertshauer
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Barbara Hochecker
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Jörg Bergemann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
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Matt K, Bergemann J. Ex vivo Analysis of DNA Repair Capacity of Human Peripheral Blood Mononuclear Cells by a Modified Host Cell Reactivation Assay. Bio Protoc 2019; 9:e3325. [PMID: 33654832 DOI: 10.21769/bioprotoc.3325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 05/02/2019] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 11/02/2022] Open
Abstract
The ability of humans to repair DNA damages decreases with increasing age. In order to be able to repair daily occurring DNA damages, it becomes more and more important to preserve repair capability of cells with aging. The preservation of DNA repair processes contributes to preventing DNA mutations and subsequently the onset of age-related diseases such as cancer. For the determination of DNA repair of human cells, mostly in vitro cell cultures are used. However, an ex vivo approach can provide a more accurate result compared with in vitro cell cultures, since the DNA repair ability is measured directly without the influence of prolonged culture time. Published protocols use in vitro cultured cells with a single reporter plasmid or a luciferase reporter. Our modified host cell reactivation assay enables the measurement of DNA repair capacity (nucleotide excision repair) of ex vivo isolated human peripheral blood mononuclear cells (PBMCs). For this purpose, PBMCs are isolated out of human anticoagulated blood by density gradient centrifugation. Directly after isolation, the PBMCs are co-transfected with two plasmids, one being previously damaged by UVC irradiation and one remaining undamaged. PBMCs are incubated for 24 h and subsequently analyzed by fluorescence activated cell sorting (FACS). The ability of cells to repair the DNA damages leads to a functional reactivation of the reporter gene. The assay presented here provides a solution to determine human DNA repair capacity ex vivo directly out of the human body. Furthermore, it can be used to research the ex vivo influence of different substances on DNA repair capacity of humans.
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Affiliation(s)
- Katja Matt
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
| | - Jörg Bergemann
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
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Matt K, Burger K, Gebhard D, Bergemann J. Influence of calorie reduction on DNA repair capacity of human peripheral blood mononuclear cells. Mech Ageing Dev 2016; 154:24-9. [DOI: 10.1016/j.mad.2016.02.008] [Citation(s) in RCA: 8] [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] [Received: 07/28/2015] [Revised: 02/05/2016] [Accepted: 02/10/2016] [Indexed: 01/28/2023]
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Gebhard D, Mahler B, Matt K, Burger K, Bergemann J. Mitochondrial DNA copy number - but not a mitochondrial tandem CC to TT transition - is increased in sun-exposed skin. Exp Dermatol 2014; 23:209-11. [PMID: 24443988 DOI: 10.1111/exd.12327] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2014] [Indexed: 11/30/2022]
Abstract
Mitochondrial DNA (mtDNA) mutations are causatively associated with photo-ageing and are used as biomarkers of UV exposure. The most prominent mitochondrial mutation is the common deletion (CD), which is induced in many tissues by oxidative stress. More photo-specific mutations might be CC to TT tandem transitions which arise from UV-induced cyclobutane pyrimidine dimers. As nucleotide excision repair is absent in mitochondria, this DNA damage can presumably not be repaired resulting in high mitochondrial mutation levels. Here, we analysed levels of the CD, a mitochondrial and a chromosomal tandem transition in epidermis and dermis from exposed and less UV-exposed skin. We also analysed mtDNA copy number, for which changes as a result of oxidative stress have been described in different experimental settings. Whereas mitochondrial tandem transition levels were surprisingly low with no discernible correlation with UV exposure, mtDNA copy number and CD were significantly increased in UV-exposed samples.
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Affiliation(s)
- Daniel Gebhard
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, Sigmaringen, Germany
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Gebhard D, Matt K, Burger K, Bergemann J. Shortwave UV-Induced Damage as Part of the Solar Damage Spectrum Is Not a Major Contributor to Mitochondrial Dysfunction. J Biochem Mol Toxicol 2014; 28:256-62. [DOI: 10.1002/jbt.21561] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 02/07/2014] [Accepted: 02/11/2014] [Indexed: 01/22/2023]
Affiliation(s)
- Daniel Gebhard
- Department of Life Sciences; Albstadt-Sigmaringen University of Applied Sciences; 72488 Sigmaringen Germany
| | - Katja Matt
- Department of Life Sciences; Albstadt-Sigmaringen University of Applied Sciences; 72488 Sigmaringen Germany
| | - Katharina Burger
- Department of Life Sciences; Albstadt-Sigmaringen University of Applied Sciences; 72488 Sigmaringen Germany
| | - Jörg Bergemann
- Department of Life Sciences; Albstadt-Sigmaringen University of Applied Sciences; 72488 Sigmaringen Germany
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Burger K, Matt K, Kieser N, Gebhard D, Bergemann J. A modified fluorimetric host cell reactivation assay to determine the repair capacity of primary keratinocytes, melanocytes and fibroblasts. BMC Biotechnol 2010; 10:46. [PMID: 20569452 PMCID: PMC2900224 DOI: 10.1186/1472-6750-10-46] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [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: 07/02/2009] [Accepted: 06/22/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Host Cell Reactivation Assay (HCRA) is widely used to identify circumstances and substances affecting the repair capacity of cells, however, it is restricted by the transfection procedure used and the sensitivity of the detection method. Primary skin cells are particularly difficult to transfect, and therefore sensitive methods are needed to detect any variations due to the cell-type or inter-individual differences or changes induced by diverse substances.A sensitive and repeatable method to detect the repair capacity of skin cells would be useful in two different aspects: On the one hand, to identify substances influencing the repair capacity in a positive manner (these substances could be promising ingredients for cosmetic products) and on the other hand, to exclude the negative effects of substances on the repair capacity (this could serve as one step further towards replacing or at least reducing animal testing). RESULTS In this paper, we present a rapid and sensitive assay to determine the repair capacity of primary keratinocytes, melanocytes and fibroblasts based on two wave-length Green Fluorescent Protein (GFP) and DsRed reporter technology in order to test different substances and their potential to influence the DNA repair capacity. For the detection of plasmid restoration, we used FACS technology, which, in comparison to luminometer technology, is highly sensitive and allows single cell based analysis.The usefulness of this assay and studying the repair capacity is demonstrated by the evidence that DNA repair is repressed by Cyclosporin A in fibroblasts. CONCLUSIONS The methodology described in this paper determines the DNA repair capacity in different types of human skin cells. The described transfection protocol is suitable for the transfection of melanocytes, keratinocytes and fibroblasts, reaching efficacies suitable for the detection of the restored plasmids by FACS technology. Therefore the repair capacity of different cell types can be compared with each other. The described assay is also highly flexible, and the activity of other repair mechanisms can be determined using modifications of this method.
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Affiliation(s)
- Katharina Burger
- Department of Biomedical Engineering, University of Applied Sciences, Anton-Günther-Strasse 51, 72488 Sigmaringen, Germany
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Schmidt U, Proff C, Schneider PM, Matt K, Sänger T, Zacher T, Lutz-Bonengel S. [DNA amplification on chemically structured chips in forensic STR analysis]. Arch Kriminol 2008; 222:117-127. [PMID: 19044139] [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: 05/27/2023]
Abstract
The present study deals with low-volume amplification of short tandem repeats (STRs) for forensic DNA analysis. A chemically structured chip in microscopic slide format was used to amplify standard forensic casework samples in a 1-microL reaction volume primarily with the well-known and widely used PowerPlex kit and with other commercially available STR kits. Tests regarding sensitivity, mixture analysis, robustness, reproducibility, buffer composition and technical performance were carried out to check the usefulness of this amplification strategy. The results obtained show that low-volume amplification is a promising option in the forensic DNA typing toolbox. Restrictions to this method, which are strictly related to the kit and the respective buffer used, were found in low copy number (LCN) DNA typing, mixture analysis and technical performance. Problematic typing results included artefact alleles, increase in locus and heterozygote imbalance, allelic and locus dropout as well as increase of stutters, especially when amplifying less than 200-300 pg of DNA. In contrast, convincing advantages are a higher sensitivity, better amplification efficiency and the low cost factor of this method.
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Affiliation(s)
- Ulrike Schmidt
- Aus dem Institut für Rechtsmedizin am Universitätsklinikum Freiburg
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Heinrich M, Lutz-Bonengel S, Matt K, Schmidt U. Real-time PCR detection of five different "endogenous control gene" transcripts in forensic autopsy material. Forensic Sci Int Genet 2007; 1:163-9. [PMID: 19083749 DOI: 10.1016/j.fsigen.2007.01.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Accepted: 01/27/2007] [Indexed: 11/28/2022]
Abstract
Relative quantification of mRNA using quantitative real-time reverse transcription (RT)-PCR is a commonly used method for analysis and comparison of gene expression levels. This method requires a normalisation of data against expression levels of a control gene. In the past, several ubiquitously expressed genes were used as such endogenous controls. When working with human tissue samples obtained during autopsy one has to deal with postmortem intervals of usually more than 10 h. The aim of this study was to investigate whether commonly used endogenous control genes show stability over various postmortem intervals. For this purpose, RNA was extracted from three different human tissues of five postmortem intervals ranging from 15 to 118 h. The Ct values from five commonly used endogenous control genes--beta-actin, B2M, CyPA, TBP, and UBC--were obtained by real-time RT-PCR. Results revealed a relatively high stability of Ct values in skeletal muscle tissue regarding different postmortem intervals. In heart and brain tissues, all endogenous controls were found to be highly variable. B2M appeared to be the least unstable control in this set. Nevertheless, all endogenous controls showed variability in their expression levels regarding both the stability among different tissues and different postmortem intervals. Data obtained in the present study show that postmortem mRNA degradation is a complex process, and that the use of one single endogenous control in gene expression studies of postmortem tissue would lead to erroneous data interpretation. Further studies on this topic should be performed in the future including an increased number of well documented samples.
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Affiliation(s)
- Marielle Heinrich
- Institute of Legal Medicine, University of Freiburg, Albertstr 9, 79104 Freiburg, Germany.
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Heinrich M, Matt K, Lutz-Bonengel S, Schmidt U. Successful RNA extraction from various human postmortem tissues. Int J Legal Med 2006; 121:136-42. [PMID: 17115174 DOI: 10.1007/s00414-006-0131-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2006] [Accepted: 09/15/2006] [Indexed: 11/28/2022]
Abstract
Recently, several authors described the observation that RNA degradation does not correlate with the postmortem interval (PMI), but rather with other parameters like environmental impact and the circumstances of death. Therefore, the question arose if the analysis of gene expression could be a valuable tool in forensic genetics to contribute to the determination of the cause of death. In our study, six human tissues obtained from six individuals with PMI varying between 15 and 118 h were used for total RNA extraction. Quantification was performed using a GAPDH real-time assay, and the quality of mRNA was checked by amplification of different fragment lengths of the GAPDH transcript. In our set of samples, nearly all tissues in all PMI revealed satisfactory results, while skeletal muscle, followed by brain and heart, gave the best results. No correlation between PMI and RNA degradation could be detected, as very good results were observed for all tissues from the individual with the longest PMI. The highly promising results obtained in this study raise hopes that in the near future several fields of forensic investigation may profit from additional information about gene expression patterns and their correlation with pathological findings.
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Affiliation(s)
- Marielle Heinrich
- Institute of Legal Medicine, University of Freiburg, Albertstr. 9, 79104, Freiburg, Germany.
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Abstract
The aim of this study was to investigate the prevalence and character of autoimmune derangements in women with reproductive failure. A total of 108 females (age range 17-43, mean 27.5 years), including 16 with primary menstrual cycle disturbances and polycystic ovaries (PCO), 20 with polycystic ovary syndrome (PCOS), 38 with endometriosis (E), and 34 with chronic anovulation, luteal phase insufficiency, subfertility or unexplained infertility (INF) were investigated. A control group of 392 women was formed from an unselected population sample (age range 17-43, mean 31.0 years). All sera were tested by indirect immunofluorescence method to assess common autoantibodies: nuclear (ANA), smooth muscle (SMA), parietal cell (PCA), thyroid microsomal (TMA), reticulin (ARA), mitochondrial (AMA) and liver/kidney microsomal autoantibodies (LKMA). Enzyme-linked immunosorbent assay was used to detect antibodies against beta2-glycoprotein I (anti-beta 2GPI) and carbonic anhydrase (anti-CA). Our results showed that 40.7% of patients' sera and 14.8% of control sera contained one or more common autoantibodies, ANA and SMA were most frequently detected (difference between two groups P<0.005). Anti-beta 2GPI were found in eight cases (7.4%), including two patients with INF but without other autoantibodies. Anti-CA were revealed in nine cases (8.3%) including patients' PCOS, E and INF. A comparison of patients' clinical data with antibody assay results did not reveal any significant associations. Our results indicate a high prevalence of autoimmune reactions in women with reproductive failure due to the most common causes PCO, PCOS and E as well as in unexplained infertility. This might reflect the propensity to develop autoimmune reactions in such patients, including pathogenic autoimmune reactions to specific target antigens.
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Affiliation(s)
- K Reimand
- Department of Immunology, University of Tartu, Ravila 19, Tartu 51014, Estonia.
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Matt K, Reimand K, Kadastik Ü, Metskula K, Uibo R. Immunological aspects of infertility. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)83144-6] [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: 10/26/2022]
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Castro L, Bartholomew J, Marchbanks B, Fincher C, Yocum D, Matt K. HEALTH INTERVENTION, STRESS REACTIVITY AND DISEASE ACTIVITY IN PATIENTS WITH RHEUMATOID ARTHRITIS. Med Sci Sports Exerc 1995. [DOI: 10.1249/00005768-199505001-00742] [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: 11/21/2022]
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Armstrong S, Matt K, Reiman E, BIocher N, Bandy D, Mattox J. 963 REGIONAL CHANGES IN BRAIN ACTIVITY DURING THE MENSTRUAL CYCLE AS MEASURED BY POSITRON EMISSION TOMOGRAPHY. Med Sci Sports Exerc 1994. [DOI: 10.1249/00005768-199405001-00965] [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: 11/21/2022]
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McLean KP, Matt K, Skinner JS, Nelson R. 692 TRAINING-INDUCED CHANGES IN GLUCOSE REGULATION DURING PROLONGED EXERCISE IN PERSONS WITH QUADRIPLEGIA. Med Sci Sports Exerc 1993. [DOI: 10.1249/00005768-199305001-00694] [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: 11/21/2022]
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Abstract
Golden (Syrian) hamsters are seasonal breeders. Under natural photoperiodic conditions, their reproductive systems are functional during spring and summer and atrophic during the fall and winter. This reproductive cycle can be duplicated in the laboratory by exposing the animals to artificially-created photoperiods. The endocrine correlates of photoperiod-induced changes in reproductive activity of the male hamster are fairly well characterized, but the neural control of seasonal reproductive activity has not been as extensively studied. Recent studies indicate that short day (less than 12.5 hr light/day) exposure leads to complex changes in central neurotransmitter metabolism, as well as neurotransmitter and hormonal receptor content, which, in turn, are reversed by exposure to long days or during the period of spontaneous testicular recrudescence. Many of these endocrine and neuroendocrine changes are dependent on the presence of the pineal gland, but photoperiod-induced changes in neurotransmitter metabolism have also been described in pinealectomized hamsters. Further studies of the neuroendocrine transduction of photoperiodic signals will not only provide a better understanding of seasonal reproductive and metabolic activities, but will increase our basic understanding of the neural control of the endocrine system.
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Lechner K, Hartmann E, Schneider WH, Spona J, Matt K. [Blood coagulation and fibrinolysis in women receiving estrogen, gestagen and estrogen-gestagen-contraceptives (author's transl)]. Klin Wochenschr 1976; 54:431-8. [PMID: 1271696 DOI: 10.1007/bf01470929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Eight femal subjects received a contraceptive with a low estrogen content (Neogynon), the estrogen component (50 mug ethinylestradiol) and consecutively the gestagen component (250 mug D-Norgestrel) of the contraceptive. Each treatment cycle was followed by a control cycle. At various times of the control and therapy cycles several coagulation and fibrinolytic parameters were investigated. Statistical analyses were performed by multivariate two-factorial analysis of variance. Plasminogen exhibities a statistically significant increase during the treatment with ethinylestradiol and the combination of this steroid with D-norgestrel. No significant changes were found for all other parameters, including partial thromboplastin time, fibriogen, factors X, IX, VIII, factor VIII-related antigen, antithrombin III and fibrin(ogen)degradation products.
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Altmann P, Georgiades E, Matt K. [Objectivization of the surgical effect in incontinence surgery using sphincterometry]. Arch Gynakol 1975; 219:232-3. [PMID: 1243309 DOI: 10.1007/bf00669058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Schneider WH, Matt K, Irsigler K, Lageder H, Schubert H. [Gynecological, hematological and metabolic studies during therapy with an estrogen-gestagen combination preparation]. Arzneimittelforschung 1975; 25:959-62. [PMID: 1100056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Twenty women after menopause were submitted to substitution treatment with a biphasic hormone combination (Cyclacur¿). Nine of these had undergone hysterectomy + ovarectomy. Through 11 days each of the women was administered a daily dose of 2 mg estradiol-valerianate as estrogen. Subsequently, for another 10 days each was given the identical dose of estrogen plus 0.5 mg DL-norgestrel as gestagen. Upon this followed an intermission of 7 days without any medication. After 1 cycle of placebo, 7 cycles of medication were followed by 1 cycle of placebo again with regular controls. Climacteric signs and symptoms were eliminated entirely. In those women without hysterectomy withdrawal-menorrhagia occurred promptly 2--3 days after discontinuing medication. During the entire period of investigation there was no significant change in serum lipids, blood sugar values, or serum enzyme tests used as parameter of hepatic function. As far as hematology is concerned there was a moderate rise of hematocrit. No change of serum protein-bound iodine was observed.
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Leodolter S, Matt K, Schneider W. [Influence of sexagens on adrenal cortex hypertrophy in hemiadrenalectomized rats]. Endokrinologie 1973; 62:184-8. [PMID: 4778775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Schneider WH, Matt K, Spona J. [Results of the LH-RH-hypophyseal function test in women with secondary amenorrhea (author's transl)]. Wien Klin Wochenschr 1973; 85:588-90. [PMID: 4584372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Schneider WH, Spona J, Matt K. [Effects of short- and long-term administration of synthetic FSH- and LH-releasing hormone on the parameters assessing menstrual function in women with secondary amenorrhoea]. Wien Klin Wochenschr 1973; 85:554-8. [PMID: 4582418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Schneider WH, Spona J, Matt K. [Effects of a cycle-regulating 2-phase preparation on peripheral and central cycle function]. Ther Umsch 1973; 30:516-23. [PMID: 4720331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Schneider W, Spona J, Matt K. [Influence of estrogens on the release of LH]. Wien Klin Wochenschr 1973; 85:260-2. [PMID: 4574398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Schneider W, Spona J, Matt K. [Effects of partial components of a contraceptive agent on the function of the menstrual cycle]. Med Klin 1973; 68:510-5. [PMID: 4707381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hernuss P, Matt K. [Deflection presentation in the labor material of the I. Gynecological Clinic of the Vienna University]. Zentralbl Gynakol 1973; 95:128-37. [PMID: 4692572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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