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  1. Article ; Online: Opening the gate for genomics data into clinical research: a use case in managing patients' DNA samples from the bench to drug development.

    Matteson, Stephen / Paulauskis, Joseph / Foisy, Sheldon / Hall, Stephanie / Duval, Manuel

    Pharmacogenomics

    2010  Volume 11, Issue 11, Page(s) 1603–1612

    Abstract: The use of human genetic polymorphism data in drug development is not a recent event. Typically, the detection of patients' genetic variations in drug-metabolizing enzymes has become common practice in clinical laboratories. What is new is the scale and ... ...

    Abstract The use of human genetic polymorphism data in drug development is not a recent event. Typically, the detection of patients' genetic variations in drug-metabolizing enzymes has become common practice in clinical laboratories. What is new is the scale and diversity of genomics data that has entered into the drug research and development decision-making process. At least three concurrent events contribute to this paradigm shift: first the growing body of evidence that establishes that interindividual variation in both therapeutic response and adverse events are attributable to a genetic component; second the technological progress that enables the consistent and reproducible detection of human genomic quantities; third the expectation that the productivity of new drug development will be increased by identifying which patients would benefit from candidate therapies early in the clinical process. This influx of human genomics data into clinical laboratories requires some logistical adjustment in terms of data management. The major specifications of an information solution system intended for a clinical genomic laboratory are its compliance with regulatory procedures, regarding the handling of human genetic data and its subsequent integration into an existing clinical data management system from the hosting institution. The purpose of this article is to inform the community of the challenges in setting up a center for genomics data that ensures accurate, traceable and integrated data for laboratory management. This is by no means the only way to accomplish the same goal, and is simply presented as one way that Pfizer chose to solve these issues.
    MeSH term(s) Biomedical Research/instrumentation ; Biomedical Research/methods ; Clinical Laboratory Information Systems ; DNA/genetics ; Drug Discovery/instrumentation ; Drug Discovery/methods ; Drug-Related Side Effects and Adverse Reactions ; Genomics ; Humans ; Pharmaceutical Preparations/metabolism ; Pharmacogenetics/instrumentation ; Pharmacogenetics/methods ; Reverse Transcriptase Polymerase Chain Reaction ; Technology, Pharmaceutical/instrumentation ; Technology, Pharmaceutical/methods
    Chemical Substances Pharmaceutical Preparations ; DNA (9007-49-2)
    Language English
    Publishing date 2010-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2019513-8
    ISSN 1744-8042 ; 1462-2416
    ISSN (online) 1744-8042
    ISSN 1462-2416
    DOI 10.2217/pgs.10.151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Great Lakes Biorepository Research Network's Annual Biobanking Symposium: A Focus on Precision Medicine.

    Paulauskis, Joseph D / Blanc, Victoria M / Carey, Thomas / Chesla, David W / Frey, Renée C / Geddes, Timothy / Keats, Jonathan / Loup, Allan / Pruetz, Barbara / Rohrer, Daniel C / Valley, Dana R / Tomlinson, Tom / Akervall, Jan / Wilson, George D / Jewell, Scott D

    Biopreservation and biobanking

    2019  Volume 17, Issue 6, Page(s) 598–602

    MeSH term(s) Biological Specimen Banks ; Congresses as Topic ; Great Lakes Region ; Humans ; Intersectoral Collaboration ; Precision Medicine ; Specimen Handling/methods
    Language English
    Publishing date 2019-06-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2593993-2
    ISSN 1947-5543 ; 1947-5535
    ISSN (online) 1947-5543
    ISSN 1947-5535
    DOI 10.1089/bio.2019.0022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Two algorithms for biospecimen comparison and differentiation using SNP genotypes.

    Morris, Scott / Gel, Esma S / Smith, Jordan V / Paulauskis, Joseph D / Boom, Dirk van den / Oeth, Paul / Penny, Robert

    Pharmacogenomics

    2013  Volume 14, Issue 4, Page(s) 379–390

    Abstract: Aims: Biobanks are frequently required to verify specimen relationships. We present two algorithms to compare SNP genotype patterns that provide an objective, high-throughput tool for verification.: Methods: The first algorithm allows for comparison ... ...

    Abstract Aims: Biobanks are frequently required to verify specimen relationships. We present two algorithms to compare SNP genotype patterns that provide an objective, high-throughput tool for verification.
    Methods: The first algorithm allows for comparison of all holdings within a biobank, and is well suited to construct sample relationships de novo for comparison with assumed relationships. The second algorithm is tailored to oncology, and allows one to confirm that paired DNAs from malignant and normal tissues are from the same individual in the presence of copy number variations. To evaluate both algorithms, we used an internal training data set (n = 1504) and an external validation data set (n = 1457).
    Results: In comparison with the results from manual review and a priori knowledge of patient relationships, we identified no errors in interpreting sample relationships within our validation data set.
    Conclusion: We provide an efficient and objective method of automated data analysis that is currently lacking for establishing and verifying specimen relationships in biobanks.
    MeSH term(s) Algorithms ; Biological Specimen Banks ; DNA Copy Number Variations/genetics ; Genotyping Techniques ; Humans ; Polymorphism, Single Nucleotide/genetics ; Software
    Language English
    Publishing date 2013-03
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2019513-8
    ISSN 1744-8042 ; 1462-2416
    ISSN (online) 1744-8042
    ISSN 1462-2416
    DOI 10.2217/pgs.13.21
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: So many studies, too few subjects: establishing functional relevance of genetic polymorphisms on pharmacokinetics.

    Williams, J Andrew / Johnson, Keith / Paulauskis, Joseph / Cook, Jack

    Journal of clinical pharmacology

    2006  Volume 46, Issue 3, Page(s) 258–264

    Abstract: Based on current literature, greater clarity in defining the magnitude of polymorphism effects on pharmacokinetics can be achieved by addressing key components of study design, including adequate subject numbers per study group. Convincing evidence of ... ...

    Abstract Based on current literature, greater clarity in defining the magnitude of polymorphism effects on pharmacokinetics can be achieved by addressing key components of study design, including adequate subject numbers per study group. Convincing evidence of functional relevance exists for polymorphisms in genes such as CYP2D6 and UGT1A1, whereas the published evidence for similar effects for CYP3A5, OATP1B1, and ABCB1 is still emerging or equivocal. Polymorphism-associated differences in pharmacokinetic parameters were simulated to incorporate (1) the ratio of group mean parameter values for homozygous wild-type subjects versus homozygous variants, (2) pharmacokinetic variability, and (3) sample size needed to achieve 80% power, assuming 69% coefficient of variation. Subject selection by genotype and choice of probe substrate are also considered. Simulation results and literature examples are incorporated to define key recommendations for future investigations. This will allow for more definitive statements in publications regarding genotype influence on pharmacokinetics.
    MeSH term(s) Biotransformation/physiology ; Clinical Trials as Topic/methods ; Cytochrome P-450 Enzyme System/metabolism ; Enzymes/metabolism ; Genotype ; Glucuronosyltransferase/metabolism ; Humans ; Membrane Transport Proteins/metabolism ; Metabolic Clearance Rate ; Patient Selection ; Pharmacogenetics ; Pharmacokinetics ; Polymorphism, Genetic/physiology ; Research Design
    Chemical Substances Enzymes ; Membrane Transport Proteins ; Cytochrome P-450 Enzyme System (9035-51-2) ; Glucuronosyltransferase (EC 2.4.1.17)
    Language English
    Publishing date 2006-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 188980-1
    ISSN 1552-4604 ; 0091-2700 ; 0021-9754
    ISSN (online) 1552-4604
    ISSN 0091-2700 ; 0021-9754
    DOI 10.1177/0091270005283463
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Differential expression of pancreatitis-associated protein and thrombospondins in arterial versus venous tissues.

    Szasz, Theodora / Eddy, Susan / Paulauskis, Joseph / Burnett, Robert / Ellekilde, Merete / Iovanna, Juan L / Watts, Stephanie W

    Journal of vascular research

    2009  Volume 46, Issue 6, Page(s) 551–560

    Abstract: Background/aims: Arteries and veins modulate cardiovascular homeostasis and contribute to hypertension pathogenesis. Functional differences between arteries and veins are based upon differences in gene expression. To better characterize these expression ...

    Abstract Background/aims: Arteries and veins modulate cardiovascular homeostasis and contribute to hypertension pathogenesis. Functional differences between arteries and veins are based upon differences in gene expression. To better characterize these expression patterns, and to identify candidate genes that could be manipulated selectively in the venous system, we performed whole genome expression profiling of arteries and veins.
    Methods: We used the CodeLink platform and the major artery (thoracic aorta) and vein (caudal vena cava) of the rat.
    Results: The most prominent difference was pancreatitis-associated protein (PAP1), expressed 64-fold higher in vena cava versus aorta. Expression of mRNA for thrombospondins (TSP-1, TSP-4) was greater than 5-fold higher in veins versus arteries. Higher mRNA expression of TSP-1, TSP-2, TSP-4 and PAP1 in vena cava versus aorta was confirmed by PCR. Immunohistochemical analysis of tissue sections qualitatively confirmed a higher expression of these proteins in vena cava versus aorta.
    Conclusion: This is the first gene array study of adult rat arterial and venous tissues, and also the first study to report differences in inflammatory genes between arteries and veins. Data from these studies may provide novel insights into the genetic basis for functional differences between arteries and veins in health and disease.
    MeSH term(s) Animals ; Antigens, Neoplasm/analysis ; Antigens, Neoplasm/genetics ; Aorta, Thoracic/chemistry ; Biomarkers, Tumor/analysis ; Biomarkers, Tumor/genetics ; Gene Expression Profiling/methods ; Immunohistochemistry ; Lectins, C-Type/analysis ; Lectins, C-Type/genetics ; Male ; Oligonucleotide Array Sequence Analysis ; Pancreatitis-Associated Proteins ; RNA, Messenger/analysis ; Rats ; Rats, Sprague-Dawley ; Reproducibility of Results ; Reverse Transcriptase Polymerase Chain Reaction ; Thrombospondin 1/genetics ; Thrombospondins/analysis ; Thrombospondins/genetics ; Venae Cavae/chemistry
    Chemical Substances Antigens, Neoplasm ; Biomarkers, Tumor ; Lectins, C-Type ; Pancreatitis-Associated Proteins ; REG3A protein, human ; RNA, Messenger ; Reg3b protein, rat ; Thrombospondin 1 ; Thrombospondins ; thrombospondin 2 ; thrombospondin 4
    Language English
    Publishing date 2009-06-30
    Publishing country Switzerland
    Document type Comparative Study ; Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1105259-4
    ISSN 1423-0135 ; 1018-1172
    ISSN (online) 1423-0135
    ISSN 1018-1172
    DOI 10.1159/000226223
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Investigating fixative-induced changes in RNA quality and utility by microarray analysis.

    Cox, Melissa L / Eddy, Susan M / Stewart, Zachary S / Kennel, Maggi R / Man, Michael Z / Paulauskis, Joseph D / Dunstan, Robert W

    Experimental and molecular pathology

    2008  Volume 84, Issue 2, Page(s) 156–172

    Abstract: Described herein is a detailed analysis of the impact of three fixatives (10% neutral buffered formalin, modified methacarn and 70% ethanol) on RNA quality and utility using microarray analysis compared to OCT-embedded and flash frozen tissue. From rat ... ...

    Abstract Described herein is a detailed analysis of the impact of three fixatives (10% neutral buffered formalin, modified methacarn and 70% ethanol) on RNA quality and utility using microarray analysis compared to OCT-embedded and flash frozen tissue. From rat livers fixed and stored in paraffin blocks for 1 month or 1 year, RNA was isolated and applied to rat whole genome microarrays. At both time points, RNA isolated from OCT-embedded tissue lost up to 5% of the information contained in snap frozen control liver. Of the fixatives used, modified methacarn was associated with the smallest loss of RNA information content (approximately 10%), while liver fixed in 70% ethanol and 10% neutral buffered formalin lost roughly 25% and 80%, respectively. We conclude that when optimum morphology is required for techniques such as laser microdissection, modified methacarn is the fixative least harmful to nucleic acids of the three tested in this study. In contrast, using traditional isolation techniques, RNA derived from tissue fixed in 10% NBF will not give reliable results on microarray studies, and should be reserved for techniques less affected by the fragmentation and modification of the template RNA, such as quantitative RT-PCR.
    MeSH term(s) Acetic Acid/chemistry ; Animals ; Artifacts ; Chloroform/chemistry ; Ethanol/chemistry ; Fixatives/chemistry ; Formaldehyde/chemistry ; Lasers ; Liver/chemistry ; Methanol/chemistry ; Microdissection ; Oligonucleotide Array Sequence Analysis ; Paraffin Embedding ; RNA, Complementary/chemistry ; Rats ; Rats, Sprague-Dawley ; Time Factors ; Tissue Fixation/methods
    Chemical Substances Fixatives ; RNA, Complementary ; methacarn ; Formaldehyde (1HG84L3525) ; Ethanol (3K9958V90M) ; Chloroform (7V31YC746X) ; Acetic Acid (Q40Q9N063P) ; Methanol (Y4S76JWI15)
    Language English
    Publishing date 2008-04
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 207655-x
    ISSN 1096-0945 ; 0014-4800
    ISSN (online) 1096-0945
    ISSN 0014-4800
    DOI 10.1016/j.yexmp.2007.11.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Association between human paraoxonase gene polymorphism and chronic symptoms in pesticide-exposed workers.

    Lee, Burton W / London, Leslie / Paulauskis, Joseph / Myers, Jonny / Christiani, David C

    Journal of occupational and environmental medicine

    2003  Volume 45, Issue 2, Page(s) 118–122

    Abstract: Pesticides, such as parathion, are metabolized by cytochrome p-450 system to paraoxon, which is a potent cholinesterase inhibitor. Paraoxonase (PON) catalyzes the hydrolysis of these toxic metabolites and protects against pesticide toxicity. A glutamine/ ... ...

    Abstract Pesticides, such as parathion, are metabolized by cytochrome p-450 system to paraoxon, which is a potent cholinesterase inhibitor. Paraoxonase (PON) catalyzes the hydrolysis of these toxic metabolites and protects against pesticide toxicity. A glutamine/arginine (Gln/Arg) polymorphism at amino acid position 192 of PON has been described. The Arg/Arg genotype is associated with higher serum paraoxonase activity compared to Gln/Gln. The Arg/Gln genotype is associated with intermediate serum PON activity. The potential association between PON genotype and symptoms of chronic pesticide toxicity was examined among 100 farm workers. As part of a cross-sectional study of pesticide toxicity among mixed-race farm workers in the Western Cape. South Africa, 100 farm workers were genotyped for polymorphism of the paraoxonase gene at amino acid position 192. Subjects with two or more of the following symptoms were considered to have evidence of chronic toxicity: abdominal pain, nausea, rhinorrhea, dizziness, headache, somnolence, fatigue, gait disturbance, limb numbness, paresthesias, limb pain, or limb weakness. In multivariable logistic regression analysis, the independent predictors of chronic toxicity were previous history of head trauma resulting in loss of consciousness (OR 2.8, 95% CI = 1.7-6.7), having worked as a pesticide applicator (OR 5.4, 95% CI = 3.2-8.9), and having one of the two "slow metabolism" (Gln/Gln or Gln/Arg) genotypes (OR 2.9, 95% CI = 1.7-6.9). Furthermore, the prevalence of chronic toxicity increased in a stepwise fashion from 15% among pesticide nonapplicators with a "fast metabolism" (Arg/Arg) genotype, to 42.9% among pesticide nonapplicators with "slow metabolism" (Gln/Gln or Gln/Arg) genotypes, to 58.8% among pesticide applicators with "fast metabolism" genotype, and 75.0% among pesticide applicators with "slow metabolism" genotypes (P = 0.001). Age, number of years on the job, smoking history, alcohol history, education level, plasma or red blood cell cholinesterase level, or previous history of acute organophosphate poisoning were not statistically significant predictors of chronic toxicity. The PON genotype is an important determinant of a farmworker's susceptibility to chronic pesticide poisoning.
    MeSH term(s) Adult ; Agriculture ; Arginine ; Aryldialkylphosphatase ; Chronic Disease ; Cross-Sectional Studies ; Esterases/genetics ; Genetic Predisposition to Disease ; Genotype ; Glutamine ; Humans ; Male ; Occupational Exposure ; Pesticides/metabolism ; Pesticides/toxicity ; Polymorphism, Genetic
    Chemical Substances Pesticides ; Glutamine (0RH81L854J) ; Arginine (94ZLA3W45F) ; Esterases (EC 3.1.-) ; Aryldialkylphosphatase (EC 3.1.8.1)
    Language English
    Publishing date 2003-01-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 1223932-x
    ISSN 1536-5948 ; 1076-2752
    ISSN (online) 1536-5948
    ISSN 1076-2752
    DOI 10.1097/01.jom.0000052953.59271.e1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Limited influence of UGT1A1*28 and no effect of UGT2B7*2 polymorphisms on UGT1A1 or UGT2B7 activities and protein expression in human liver microsomes.

    Peterkin, Vincent C / Bauman, Jonathan N / Goosen, Theunis C / Menning, Lee / Man, Michael Z / Paulauskis, Joseph D / Williams, J Andrew / Myrand, Scott P

    British journal of clinical pharmacology

    2007  Volume 64, Issue 4, Page(s) 458–468

    Abstract: Aims: UGT1A1 and UGT2B7 are enzymes that commonly contribute to drug glucuronidation. Since genetic factors have been suggested to contribute to variability in activities and expression levels of these enzymes, a quantitative assessment of the influence ...

    Abstract Aims: UGT1A1 and UGT2B7 are enzymes that commonly contribute to drug glucuronidation. Since genetic factors have been suggested to contribute to variability in activities and expression levels of these enzymes, a quantitative assessment of the influence of the major genotypes (UGT1A1*28 or UGT2B7*2) on enzyme activities was conducted.
    Methods: Using a bank of microsomal samples from 59 human livers, the effect of UGT1A1*28 or UGT2B7*2 polymorphisms were investigated on rates of estradiol 3-glucuronidation (a marker of UGT1A1 enzyme activity) or zidovudine glucuronidation (a marker of UGT2B7 enzyme activity) and levels of immunoreactive protein for each enzyme. Glucuronidation rates for both enzymes were measured at K(m)/S(50) and 10 times K(m)/S(50) concentrations.
    Results: UGT1A1 and UGT2B7 enzyme activities varied up to 16-fold and sixfold, respectively. Rates at K(m)/S(50) concentration closely correlated with rates at 10 times K(m)/S(50) concentration for both enzymes (but not at 1/10th K(m) for UGT2B7). Enzyme activities correlated with relative levels of immunoreactive protein for UGT1A1 and UGT2B7. Furthermore, rates of zidovudine glucuronidation correlated well with rates of glucuronidation of the UGT2B7 substrate gemcabene, but did not correlate with UGT1A1 enzyme activities. For the UGT1A1*28 polymorphism, consistent with levels of UGT1A1 immunoreactive protein, mean UGT1A1 activity was 2.5- and 3.2-fold lower for TA(6)/TA(7) (P < 0.05) and TA(7)/TA(7) (P < 0.001) genotypes in comparison with the TA(6)/TA(6) genotype.
    Conclusions: Relative to the observed 16-fold variability in UGT1A1 activity, these data indicate only a partial (approximately 40%) contribution of the UGT1A1*28 polymorphism to variability of interindividual differences in UGT1A1 enzyme activity. For the UGT2B7*2 polymorphism, genotype had no influence on immunoreactive UGT2B7 protein or the rate of 3'-azido-3'-deoxythymidine glucuronidation.
    MeSH term(s) Adolescent ; Adult ; Aged ; Female ; Genotype ; Glucuronosyltransferase/genetics ; Glucuronosyltransferase/metabolism ; Humans ; Male ; Microsomes, Liver/enzymology ; Middle Aged ; Polymorphism, Genetic/genetics ; Reverse Transcriptase Inhibitors/pharmacology ; Zidovudine/pharmacology
    Chemical Substances Reverse Transcriptase Inhibitors ; Zidovudine (4B9XT59T7S) ; UGT2B7 protein, human (EC 2.4.1.-) ; Glucuronosyltransferase (EC 2.4.1.17)
    Language English
    Publishing date 2007-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 188974-6
    ISSN 1365-2125 ; 0306-5251 ; 0264-3774
    ISSN (online) 1365-2125
    ISSN 0306-5251 ; 0264-3774
    DOI 10.1111/j.1365-2125.2007.02923.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Contamination of water supplies with Cryptosporidium parvum and Giardia lamblia and diarrheal illness in selected Russian cities.

    Egorov, Andrey / Paulauskis, Joseph / Petrova, Lubov / Tereschenko, Andrey / Drizhd, Nina / Ford, Timothy

    International journal of hygiene and environmental health

    2002  Volume 205, Issue 4, Page(s) 281–289

    Abstract: Cryptosporidium parvum and Giardia lamblia are important agents of waterborne diarrheal illness worldwide. While giardiasis is routinely diagnosed in Russia with a chemical staining technique, data on the prevalence of cryptosporidiosis are scarce. ... ...

    Abstract Cryptosporidium parvum and Giardia lamblia are important agents of waterborne diarrheal illness worldwide. While giardiasis is routinely diagnosed in Russia with a chemical staining technique, data on the prevalence of cryptosporidiosis are scarce. Monitoring of the respective parasites in water supplies in Russia is very limited. A health survey conducted in the city of Cherepovets and three other cities in the European part of Russia using enzyme-linked immunosorbent assays (ELISA) demonstrated that 6.9% of diarrheal patients tested had C. parvum antigens in their fecal samples; 9.4% had G. lamblia antigens. A survey of occurrence of these parasites in water supplies in Cherepovets and seven other cities demonstrated that source and finished water samples from several of these cities were contaminated with either C. parvum oocysts or G. lamblia cysts. The surveys were not designed to assess associations between presence or concentrations of C. parvum and G. lamblia in water and related gastrointestinal diseases in exposed populations. Rather, the goals were to demonstrate the presence of disinfection-resistant protozoan parasites in untreated and treated waters, and the importance of these pathogens as causative agents of diarrheal illnesses in a number of Russian cities.
    MeSH term(s) Animals ; Antigens, Protozoan/analysis ; Cities ; Cryptosporidiosis/etiology ; Cryptosporidium parvum/isolation & purification ; Cryptosporidium parvum/pathogenicity ; Diarrhea/etiology ; Diarrhea/microbiology ; Drug Resistance, Microbial ; Environmental Monitoring ; Enzyme-Linked Immunosorbent Assay ; Giardia lamblia/isolation & purification ; Giardia lamblia/pathogenicity ; Giardiasis/etiology ; Humans ; Public Health ; Urban Population ; Water Supply
    Chemical Substances Antigens, Protozoan
    Language English
    Publishing date 2002-05
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 2009176-X
    ISSN 1618-131X ; 1438-4639
    ISSN (online) 1618-131X
    ISSN 1438-4639
    DOI 10.1078/1438-4639-00153
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  10. Article: Differential Expression of Pancreatitis-Associated Protein and Thrombospondins in Arterial versus Venous Tissues

    Szasz, Theodora / Eddy, Susan / Paulauskis, Joseph / Burnett, Robert / Ellekilde, Merete / Iovanna, Juan L. / Watts, Stephanie W.

    Journal of Vascular Research

    2009  Volume 46, Issue 6, Page(s) 551–560

    Abstract: Background/Aims: Arteries and veins modulate cardiovascular homeostasis and contribute to hypertension pathogenesis. Functional differences between arteries and veins are based upon differences in gene expression. To better characterize these expression ... ...

    Institution Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Mich., and Pfizer Global Research and Development, Groton, Conn., USA INSERM U.624, Stress Cellulaire, Marseille, France
    Abstract Background/Aims: Arteries and veins modulate cardiovascular homeostasis and contribute to hypertension pathogenesis. Functional differences between arteries and veins are based upon differences in gene expression. To better characterize these expression patterns, and to identify candidate genes that could be manipulated selectively in the venous system, we performed whole genome expression profiling of arteries and veins. Methods: We used the CodeLink platform and the major artery (thoracic aorta) and vein (caudal vena cava) of the rat. Results: The most prominent difference was pancreatitis-associated protein (PAP1), expressed 64-fold higher in vena cava versus aorta. Expression of mRNA for thrombospondins (TSP-1, TSP-4) was greater than 5-fold higher in veins versus arteries. Higher mRNA expression of TSP-1, TSP-2, TSP-4 and PAP1 in vena cava versus aorta was confirmed by PCR. Immunohistochemical analysis of tissue sections qualitatively confirmed a higher expression of these proteins in vena cava versus aorta. Conclusion: This is the first gene array study of adult rat arterial and venous tissues, and also the first study to report differences in inflammatory genes between arteries and veins. Data from these studies may provide novel insights into the genetic basis for functional differences between arteries and veins in health and disease.
    Keywords Veins ; Arteries ; Gene expression ; Inflammation
    Language English
    Publishing date 2009-06-30
    Publisher S. Karger AG
    Publishing place Basel, Switzerland
    Document type Article
    Note Research Paper
    ZDB-ID 1105259-4
    ISSN 1423-0135 ; 1018-1172
    ISSN (online) 1423-0135
    ISSN 1018-1172
    DOI 10.1159/000226223
    Database Karger publisher's database

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