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  1. Article: Translational research and behavioral sciences in developmental medicine: metabolic conditions of pregnancy versus autism spectrum disorders.

    Lopaczynski, Wlodek

    Medycyna wieku rozwojowego

    2012  Volume 16, Issue 3, Page(s) 171–174

    Abstract: Recently, scientific literature informed that metabolic conditions in pregnant women may be associated with increased risk for autism and other neurodevelopmental disorders in their offspring. In a cohort study of more than 1000 children between the ages ...

    Abstract Recently, scientific literature informed that metabolic conditions in pregnant women may be associated with increased risk for autism and other neurodevelopmental disorders in their offspring. In a cohort study of more than 1000 children between the ages of 2 and 5 years, those who had mothers classified as having "metabolic conditions" (which included diabetes, hypertension, and obesity) during pregnancy were at a significantly higher risk for developing an autism spectrum disorder (ASD) and neurodevelopmental delays. In addition, mothers with obesity were 1.6 times more likely to have a child with ASD and more than twice as likely to have a child with other developmental problems. In the United States, the prevalence of obesity among women of childbearing age is 34%. Moreover, with obesity rates rising steadily, these results appear to raise serious public health implications. The main objective of this Editorial is to propagate the health care improvement based on the translation research approach from basic behavioral sciences and relevant integrative neuroscience to pressing clinical issues that include an understanding of the etiology and assessment of disorders, and the assessment of functioning and development of innovative and culturally appropriate preventive treatment. Behavioral interventions for weight management in pregnancy may include the Transtheoretical Model (TTM) employed in obese pregnant women and then, the comparison with elements of the ecological model. A comparative effectiveness design is to test the effect of tailoring while including one of the most important predictors of screening-physician recommendation: after careful selection of analyzed behaviors from the TTM approach. However, there is also a risk that the evidence may not be conclusive for sustained weigh loss as a primary outcome of the proposed intervention, although the TTM in combination of physical activity and diet tended to produce significant results. Therefore, physicians might use the TTM to convince pregnant women to regulate weight and educate future parents on how to deal with autism at an early age of their children using watchful waiting management.
    MeSH term(s) Adult ; Behavioral Sciences ; Causality ; Child Development Disorders, Pervasive/epidemiology ; Child, Preschool ; Diabetes, Gestational/epidemiology ; Female ; Humans ; Hypertension/epidemiology ; Obesity/epidemiology ; Obesity/prevention & control ; Pregnancy ; Pregnancy Complications/epidemiology ; Pregnancy Complications/prevention & control ; Pregnancy in Diabetics/epidemiology ; Prenatal Exposure Delayed Effects/epidemiology ; Translational Medical Research
    Language English
    Publishing date 2012-07
    Publishing country Poland
    Document type Editorial
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Apolipoproteiny i lipoproteiny w surowicy krwi chorych na cukrzyce typu II.

    Gosiewska, A / Zarzycki, W / Depta, K / Składanek, J / Kinalski, M / Lopaczyński, W

    Wiadomosci lekarskie (Warsaw, Poland : 1960)

    1989  Volume 42, Issue 7, Page(s) 436–440

    Abstract: Lipid disturbances were evaluated in type II diabetes comparing the results of determinations of total cholesterol and HDL-cholesterol with apolipoprotein A and B levels. The study was carried out in 32 diabetics with type II disease with mean duration 7 ...

    Title translation Serum apolipoprotein and lipoprotein levels in patients with diabetes mellitus type 2.
    Abstract Lipid disturbances were evaluated in type II diabetes comparing the results of determinations of total cholesterol and HDL-cholesterol with apolipoprotein A and B levels. The study was carried out in 32 diabetics with type II disease with mean duration 7 +/- 9 years, 15 males and 17 females, and in 30 controls. In all cases postprandial glycaemia, haemoglobin A1C, total cholesterol concentration (by the Liebermann-Burchardt method), HDL-cholesterol (by the Błaszczyszyn method), triglycerides (by the enzymatic method), an apolipoprotein A and B (by Mancini radial immunodiffusion method using a Bio-Merieux kit) were determined. A significant correlation was demonstrated between the concentrations of cholesterol and apolipoprotein A, on the one hand, and blood glucose level, on the other, and apolipoprotein A was found to be a better indicator of lipid disturbances in the aspect of diabetes control then apolipoprotein B. The latter was a better indicator of lipid disturbances in diabetes connected with obesity, than total cholesterol.
    MeSH term(s) Adult ; Aged ; Apolipoproteins/blood ; Apolipoproteins A/blood ; Apolipoproteins B/blood ; Cholesterol/blood ; Cholesterol, HDL/blood ; Cholesterol, HDL/deficiency ; Diabetes Mellitus, Type 2/blood ; Diabetes Mellitus, Type 2/complications ; Female ; Humans ; Hypercholesterolemia/etiology ; Hypolipoproteinemias/etiology ; Male ; Middle Aged
    Chemical Substances Apolipoproteins ; Apolipoproteins A ; Apolipoproteins B ; Cholesterol, HDL ; Cholesterol (97C5T2UQ7J)
    Language Polish
    Publishing date 1989-04-01
    Publishing country Poland
    Document type English Abstract ; Journal Article
    ZDB-ID 414731-5
    ISSN 0043-5147 ; 1895-0485 ; 0860-8865
    ISSN 0043-5147 ; 1895-0485 ; 0860-8865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Differential regulation of signaling pathways for insulin and insulin-like growth factor I.

    Lopaczynski, W

    Acta biochimica Polonica

    1999  Volume 46, Issue 1, Page(s) 51–60

    Abstract: The insulin receptor (IR) and the insulin-like growth factor receptor I (IGF-IR) have different functions in cell growth, apoptosis, differentation, and transformation. Although some of these differences may be explained by the relative level of receptor ...

    Abstract The insulin receptor (IR) and the insulin-like growth factor receptor I (IGF-IR) have different functions in cell growth, apoptosis, differentation, and transformation. Although some of these differences may be explained by the relative level of receptor expression and receptor structure (alpha and beta subunits), they may also be attributed to differences in intracellular signals generated by insulin and IGF-I. The presence of hybrid receptors (IR alphabeta subunits and IGF-IR alphabeta subunits) making up the heterotetramers has added a new dimension to our understanding of the functional roles of these receptors. However, to date the results of efforts to understand the differences between these two closely related receptors have indicated mostly similarities. For example, both receptors utilize IRS-1/IRS-2 and Shc as immediate downstream adaptors, leading to activation of the Ras, Raf, ERK kinases and PI-3 kinase pathways. We have used the yeast two hybrid system to identify proteins which bind to the activated IGF-IR but not to the IR. The cytoplasmic domain of the IGF-IR was used to screen a human fetal brain library and two isoforms of the 14-3-3 family were identified. 14-3-3 proteins are a highly conserved family of proteins which have recently been shown to interact with other components of the mitogenic and apoptotic signaling pathways, including Raf, BAD, Bcr/Bcr-Abl, middle-T antigen, Ksr, PKC, PI-3 kinase, ASK1 kinase, and cdc25C phosphatase. We also identified human Grb10, an adaptor protein with SH2 domain associated with the IGF-IR beta subunit. Smith's laboratory showed that Grb10 preferentially binds to the IR in intact cells. Using the interaction trap screen (active cytoplasmic domain of the IGF-IR) 55PIK and SOCS-2 proteins were also identified. However, 55PIK and SOCS-2 also interact with the IR in the yeast two hybrid system. These studies raise the possibility that 14-3-3 and Grb10 may play a role in insulin and IGF-I signal transduction and may underlie the observed differences.
    MeSH term(s) Humans ; Insulin/metabolism ; Insulin-Like Growth Factor I/metabolism ; Protein Binding ; Receptor, IGF Type 1/metabolism ; Receptor, Insulin/metabolism ; Signal Transduction
    Chemical Substances Insulin ; Insulin-Like Growth Factor I (67763-96-6) ; Receptor, IGF Type 1 (EC 2.7.10.1) ; Receptor, Insulin (EC 2.7.10.1)
    Language English
    Publishing date 1999
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 595762-x
    ISSN 1734-154X ; 0001-527X
    ISSN (online) 1734-154X
    ISSN 0001-527X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Znaczenie immunochemii czasteczki rybosomu we współczesnych metodach diagnostycznych i leczniczych.

    Lopaczyński, W

    Polski tygodnik lekarski (Warsaw, Poland : 1960)

    1986  Volume 41, Issue 32, Page(s) 1012–1015

    Title translation The significance of ribosome particle immunochemistry in current diagnostic and therapeutic methods.
    MeSH term(s) Animals ; Humans ; Immunologic Techniques ; Ribosomes/immunology
    Language Polish
    Publishing date 1986-08-11
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 414730-3
    ISSN 0032-3756 ; 0860-8857
    ISSN 0032-3756 ; 0860-8857
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Immunochemia rybosomów eukariotycznych.

    Lopaczyński, W / Gałasiński, W

    Postepy higieny i medycyny doswiadczalnej

    1990  Volume 44, Issue 1-3, Page(s) 21–39

    Abstract: Immunochemical investigations of ribosomes should correlate with basic knowledge of the function, structure and activity of organelles in the cell processes. Our paper presents data of immunochemical methods used to determine the structure, function and ... ...

    Title translation Immunochemistry of eukaryotic ribosomes.
    Abstract Immunochemical investigations of ribosomes should correlate with basic knowledge of the function, structure and activity of organelles in the cell processes. Our paper presents data of immunochemical methods used to determine the structure, function and differences of ribosomes. We present the usefulness of immunochemical methods to test human ribosomes, diagnosis and therapy of many diseases.
    MeSH term(s) Antibodies, Monoclonal/immunology ; Autoantibodies/analysis ; Autoantibodies/immunology ; Autoimmune Diseases/diagnosis ; Autoimmune Diseases/etiology ; Autoimmune Diseases/immunology ; Autoimmune Diseases/pathology ; Eukaryotic Cells/ultrastructure ; Eukaryotic Initiation Factor-2/chemistry ; Eukaryotic Initiation Factor-2/immunology ; Humans ; Neoplasms/diagnosis ; Neoplasms/etiology ; Neoplasms/immunology ; Neoplasms/ultrastructure ; Ribosomal Proteins/chemistry ; Ribosomal Proteins/immunology ; Ribosomes/chemistry ; Ribosomes/immunology
    Chemical Substances Antibodies, Monoclonal ; Autoantibodies ; Eukaryotic Initiation Factor-2 ; Ribosomal Proteins
    Language Polish
    Publishing date 1990
    Publishing country Poland
    Document type English Abstract ; Journal Article ; Review
    ZDB-ID 418865-2
    ISSN 1732-2693 ; 0032-5449
    ISSN (online) 1732-2693
    ISSN 0032-5449
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Antioxidants, programmed cell death, and cancer

    Lopaczynski, W / Zeisel, S.H

    Nutrition research (New York, N.Y.) Nutrition research. Jan/Feb 2001. v. 21 (1/2)

    2001  

    Abstract: Understanding the role of reactive oxygen species (ROS) in apoptosis opens new approaches for controlling cancer growth, and suggests that patients with cancer may not always want to ingest extra antioxidants. Many epidemiological studies suggest that ... ...

    Abstract Understanding the role of reactive oxygen species (ROS) in apoptosis opens new approaches for controlling cancer growth, and suggests that patients with cancer may not always want to ingest extra antioxidants. Many epidemiological studies suggest that increased intake of fruits and vegetables, and of other foods that contain antioxidants can protect against the DNA damage that can initiate carcinogenesis. However, recent data indicates that cells use reactive oxygen species as part of the signaling process responsible for activating an important mechanism for eliminating cancer cells, programmed cell death (also called apoptosis). Many anti-cancer agents depend on this form of cell death for their efficacy. In this review we present an overview of the role of ROS in carcinogenesis and in apoptosis, and we raise questions about the proper dietary recommendations for individuals with cancer.
    Keywords neoplasms ; antioxidants ; apoptosis ; oxygen ; carcinogenesis ; DNA ; lipid peroxidation ; plants ; chemical composition ; antineoplastic agents ; reactive oxygen species ; phytochemicals
    Language English
    Dates of publication 2001-01
    Size p. 295-307.
    Document type Article
    Note In the Special Millennium Issue: Celebrating Exciting Nutrition Research in the Next Century / edited by R.K. Chandra.
    ZDB-ID 582432-1
    ISSN 1879-0739 ; 0271-5317
    ISSN (online) 1879-0739
    ISSN 0271-5317
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Insulin-like growth factor I activates insulin receptor substrate 1 and Ras in human osteosarcoma cells.

    Lopaczynski, W / Terry, C

    Acta biochimica Polonica

    1999  Volume 46, Issue 1, Page(s) 117–123

    Abstract: Insulin-like growth factor I (IGF-I) stimulates multiplication of the human osteosarcoma cell line, MG-63, by acting through IGF-I receptor. We have characterized IGF-I stimulated phosphorylation of IRS-1, activation of Ras cycle and phosphorylation of c- ...

    Abstract Insulin-like growth factor I (IGF-I) stimulates multiplication of the human osteosarcoma cell line, MG-63, by acting through IGF-I receptor. We have characterized IGF-I stimulated phosphorylation of IRS-1, activation of Ras cycle and phosphorylation of c-Jun in this cell line. Serum starved MG-63 cells were (1) IGF-I stimulated and lysates were immunoprecipitated with polyclonal IRS-1 antibody or (2) metabolically labeled with [32P]orthophosphoric acid and then cells were treated with IGF-I. Cell lysates were immunoprecipitated with p21Ras antibody (Y13-259) and bound nucleotides were analysed by thin-layer chromatography. We demonstrated tyrosine phosphorylation of IRS-1/2 immunoprecipitated from MG-63 cells stimulated with IGF-I. We also showed an increased level of GTP in p21Ras immunoprecipitates from IGF-I treated cells. Nuclear extracts prepared from 32P-labeled cells before and after addition of IGF-I were immunoprecipitated with c-Jun antibody. After electrophoresis and autoradiography, phosphorylation of the c-Jun band was seen to be IGF-I independent. Phosphoamino acid analysis of the c-Jun band showed that phosphoserine was the major species.
    MeSH term(s) Autoradiography ; Electrophoresis, Polyacrylamide Gel ; Humans ; Insulin Receptor Substrate Proteins ; Insulin-Like Growth Factor I/metabolism ; Oncogene Protein p21(ras)/metabolism ; Phosphoproteins/metabolism ; Phosphorylation ; Precipitin Tests ; Tumor Cells, Cultured
    Chemical Substances IRS1 protein, human ; Insulin Receptor Substrate Proteins ; Phosphoproteins ; Insulin-Like Growth Factor I (67763-96-6) ; Oncogene Protein p21(ras) (EC 3.6.5.2)
    Language English
    Publishing date 1999
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 595762-x
    ISSN 1734-154X ; 0001-527X
    ISSN (online) 1734-154X
    ISSN 0001-527X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Preprostatectomy: A clinical model to study stromal-epithelial interactions.

    Lopaczynski, W / Hruszkewycz, A M / Lieberman, R

    Urology

    2001  Volume 57, Issue 4 Suppl 1, Page(s) 194–199

    Abstract: The preprostatectomy setting serves as a valuable clinical model for early developmental clinical trials for evaluating promising agents for chemoprevention. In the preprostatectomy model, study agents are administered between the diagnostic biopsy for ... ...

    Abstract The preprostatectomy setting serves as a valuable clinical model for early developmental clinical trials for evaluating promising agents for chemoprevention. In the preprostatectomy model, study agents are administered between the diagnostic biopsy for prostate cancer and definitive therapy. The prostatic tissue that is available after prostatectomy allows for biomarker evaluation of all the components of the prostate, including the glandular epithelium, blood vessels, and the stroma. This provides an opportunity to study the reciprocal interactions between the stroma and the epithelium. Morphologic studies suggest that prostatic stromal cells play a critical role in affecting the growth and maturation of prostatic epithelium. Experimental studies in tissue culture show that carcinoma-associated stromal cells can promote prostatic carcinogenesis, and normal stromal cells may be able to inhibit prostatic carcinogenesis by inducing differentiation and decreasing the proliferation of the epithelium. Although the complex molecular mechanisms through which stroma modulates the epithelial cell phenotype remain to be elucidated, there are several well-characterized signaling pathways, such as for growth factors and steroid hormones, that are likely to contribute to the modulation of transformed epithelial cells. There is evidence of an association between increased serum levels of IGF-I and an increased risk of prostate cancer. The IGF system appears to play an important role in the development of prostate cancer by modulation of paracrine pathways, and also by modulation of the concentrations of different stromal and epithelial IGFBP, which are differentially expressed in the epithelium and stroma. Nerve growth factor is capable of stimulating a proliferative response via a high affinity Trk receptor present in normal and malignant prostate epithelia, and alternatively can mediate apoptosis via the low affinity p75NTR receptor that is progressively lost from the malignant prostate. As the role of each stromal element involved in carcinogenesis becomes further defined, these elements offer promising targets for new chemopreventive strategies.
    MeSH term(s) Androgens/physiology ; Anticarcinogenic Agents/therapeutic use ; Combined Modality Therapy ; Epithelium/chemistry ; Epithelium/pathology ; Growth Substances/physiology ; Humans ; Insulin-Like Growth Factor Binding Proteins/analysis ; Insulin-Like Growth Factor Binding Proteins/physiology ; Insulin-Like Growth Factor I/analysis ; Insulin-Like Growth Factor I/physiology ; Male ; Neoplasm Proteins/antagonists & inhibitors ; Neoplasm Proteins/physiology ; Neurosecretory Systems/physiology ; Prostate/chemistry ; Prostate/pathology ; Prostatectomy ; Prostatic Neoplasms/chemistry ; Prostatic Neoplasms/pathology ; Prostatic Neoplasms/prevention & control ; Prostatic Neoplasms/surgery ; Signal Transduction ; Stromal Cells/chemistry ; Stromal Cells/pathology ; Testosterone/physiology
    Chemical Substances Androgens ; Anticarcinogenic Agents ; Growth Substances ; Insulin-Like Growth Factor Binding Proteins ; Neoplasm Proteins ; Testosterone (3XMK78S47O) ; Insulin-Like Growth Factor I (67763-96-6)
    Language English
    Publishing date 2001-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 192062-5
    ISSN 1527-9995 ; 0090-4295
    ISSN (online) 1527-9995
    ISSN 0090-4295
    DOI 10.1016/s0090-4295(00)00973-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Autophosphorylation of the insulin-like growth factor I receptor cytoplasmic domain.

    Lopaczynski, W / Terry, C / Nissley, P

    Biochemical and biophysical research communications

    2000  Volume 279, Issue 3, Page(s) 955–960

    Abstract: The cytoplasmic domain of the beta subunit of the insulin-like growth factor I receptor (amino acids 936-1337) was overexpressed in Sf9 insect cells using a baculovirus expression system, and the 6-His tagged receptor was purified by metal-affinity ... ...

    Abstract The cytoplasmic domain of the beta subunit of the insulin-like growth factor I receptor (amino acids 936-1337) was overexpressed in Sf9 insect cells using a baculovirus expression system, and the 6-His tagged receptor was purified by metal-affinity chromatography. Autophosphorylation of the receptor was concentration dependent, consistent with a trans phosphorylation mechanism. Phosphoamino acid analysis of the autophosphorylated receptor showed predominantly phosphotyrosine, but phosphoserine and phosphothreonine were also present. However, when the receptor was further purified by gel filtration on Sephadex G-100 and then autophosphorylated, phosphoamino acid analysis showed only phosphotyrosine. We conclude that the IGF-I receptor tyrosine kinase is not a dual-specificity kinase and that autophosphorylation of the beta subunit is by a trans mechanism.
    MeSH term(s) Animals ; Cells, Cultured ; Chromatography, Gel ; Cytoplasm/metabolism ; Dimerization ; Disulfides/metabolism ; Humans ; Insecta ; Phosphorylation ; Plasma/metabolism ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/metabolism ; Rabbits ; Receptor, IGF Type 1/chemistry ; Receptor, IGF Type 1/metabolism ; Serine/metabolism ; Threonine/metabolism
    Chemical Substances Disulfides ; Threonine (2ZD004190S) ; Serine (452VLY9402) ; Receptor, IGF Type 1 (EC 2.7.10.1) ; Protein-Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2000-12-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1006/bbrc.2000.4046
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Wpływ niektórych hormonów regulujacych gospodarke weglowodanowa na aktywność kinaz niezaleznych od cyklicznych nukleotydów izolowanych z łozyska ludzkiego.

    Lopaczyński, W / Szyszka, R / Kinalska, I / Gałasiński, W

    Endokrynologia Polska

    1987  Volume 38, Issue 3, Page(s) 225–232

    Title translation Effect of various hormones regulating carbohydrate metabolism on the activity of cyclic nucleotide-independent kinases isolated from the human placenta.
    MeSH term(s) Female ; Glucagon/pharmacology ; Humans ; Hydrocortisone/pharmacology ; In Vitro Techniques ; Insulin/pharmacology ; Oxidative Phosphorylation/drug effects ; Placenta/enzymology ; Pregnancy ; Protein Kinases/metabolism
    Chemical Substances Insulin ; Glucagon (9007-92-5) ; Protein Kinases (EC 2.7.-) ; Hydrocortisone (WI4X0X7BPJ)
    Language Polish
    Publishing date 1987
    Publishing country Poland
    Document type Comparative Study ; English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 419270-9
    ISSN 0423-104X
    ISSN 0423-104X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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