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  1. Article ; Online: The rs2910164:G>C SNP in the MIR146A gene is not associated with breast cancer risk in BRCA1 and BRCA2 mutation carriers.

    Garcia, Amandine I / Cox, David G / Barjhoux, Laure / Verny-Pierre, Carole / Barnes, Daniel / Antoniou, Antonis C / Stoppa-Lyonnet, Dominique / Sinilnikova, Olga M / Mazoyer, Sylvie

    Human mutation

    2011  Volume 32, Issue 9, Page(s) 1004–1007

    Abstract: The rs2910164:G>C SNP is located in the gene for miR-146a, a microRNA that binds the 3' ... mutation. We show here a lack of association of the rs2910164:G>C SNP with breast cancer risk in a series ...

    Abstract The rs2910164:G>C SNP is located in the gene for miR-146a, a microRNA that binds the 3' UTR of the BRCA1 transcript. Preliminary data based on the analysis of a small number of cases suggested that this single nucleotide polymorphism (SNP) might be associated with the age of onset of familial breast and ovarian cancer. This effect was not confirmed on a large series of familial breast cancer cases negative for a BRCA1 or BRCA2 mutation. We show here a lack of association of the rs2910164:G>C SNP with breast cancer risk in a series of 1,166 BRCA1 and 560 BRCA2 mutation carriers. In conclusion, the polymorphism in the miR-146a gene is unlikely to be of substantial significance regarding breast cancer risk.
    MeSH term(s) Adult ; BRCA1 Protein/genetics ; BRCA2 Protein/genetics ; Breast Neoplasms/genetics ; Case-Control Studies ; Female ; Genetic Association Studies ; Genetic Predisposition to Disease ; Heterozygote ; Humans ; MicroRNAs/genetics ; Mutation/genetics ; Polymorphism, Single Nucleotide/genetics ; Risk Factors
    Chemical Substances BRCA1 Protein ; BRCA1 protein, human ; BRCA2 Protein ; BRCA2 protein, human ; MIRN146 microRNA, human ; MicroRNAs
    Language English
    Publishing date 2011-07-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1126646-6
    ISSN 1098-1004 ; 1059-7794
    ISSN (online) 1098-1004
    ISSN 1059-7794
    DOI 10.1002/humu.21539
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Insight into externally bound 5,10,15,20-tetrakis(2-N-methylpyridyl) porphyrinatopalladium(II), PdP(2), with B-form DNA duplexes poly(G-c)2, poly(A-t)2, and CT DNA by using combined MCD, CD, and optical data.

    Barnes, N R / Schreiner, A F / Finnegan, M G / Johnson, M K

    Biospectroscopy

    1998  Volume 4, Issue 5, Page(s) 341–352

    Abstract: ... magnitude of 1a1u-3a2u, or delta HOMO. For the third system, PdP(2)/poly (G-C)2, the B0 CD spectrum has two ...

    Abstract The Soret (B0) region of free and externally DNA-bound 5,10,15,20-tetrakis(2-N-methylpyridyl) porphyrinatopalladium(II), PdP(2), was investigated by electronic magnetic circular dichroism (MCD), natural circular dichroism (CD), and optical (UV-visible) absorption spectroscopies. We conclude that four-coordinate, "thick" PdP(2) binds to the exterior of each of poly(A-T)2 and calf thymus DNA (CT DNA) by two distinctly different AT-specific minor and major groove modes, with site 5'TA3' being favored for both modes. The minor groove mode involves an edge-on orientation of PdP(2), for which porphyrin electric dipole transition moments (edtms) mu x (most perturbed direction of the bound porphyrin) and mu y (least perturbed direction) have approximate orientation angles of alpha/beta/beta' = approximately 90 degrees/0 degree/0 degree and approximately 45 degrees/0 degree/90 degrees, respectively. Major groove binding is by a face-on mode, which results in the porphyrin plane being approximately parallel to the helix axis, such that mu x (most perturbed direction) and mu y (least perturbed direction) have approximate orientation angles of alpha/beta/beta' = approximately 45 degrees/180 degrees/90 degrees and approximately 45 degrees/180 degrees/270 degrees, respectively. The Soret MCD and optical band alterations upon binding (i.e., sign retention of the tetragonal, genuine MCD (+) A-term on becoming the (+) pseudo-A-term of similar amplitude and small DNA-induced optical red (delta lambda) and hypochromic (H) shifts) are all consistent with exterior binding perturbations of the porphyrin's p pi MOs (1a1u 3a2u 4eg) by the A and T bases of each polymer being weaker than caused by intercalation. Furthermore, that the (+) A-term of PdP(2) retains the (+) sign upon binding informs that the 4eg splitting, or delta LUMO, is less than the energy separation magnitude of 1a1u-3a2u, or delta HOMO. For the third system, PdP(2)/poly (G-C)2, the B0 CD spectrum has two extremely weak (+) and (-) CD bands at higher and lower energy, respectively, indicating that weak outside binding (wob) interactions are taking place between the cationic porphyrin and the electron-rich phosphate backbone of this rigid polymer. The composite of our CD, MCD, and optical data are suggestive of a face-on mode at the GC major groove. Band parameter extraction is performed on the Soret CD and MCD bands of each of the three bound systems, and it is determined that (1) very little spatial rotation of molecular charge is induced during CD excitation and (2) the excited state angular momentum, 'Lj', changes very little upon binding of PdP(2) to each duplex. These findings are also consistent with each PdP(2)/B-DNA interaction not being very strong.
    MeSH term(s) Base Pairing ; Binding Sites ; Circular Dichroism ; DNA/metabolism ; Magnetics ; Metalloporphyrins/chemistry ; Metalloporphyrins/metabolism ; Nucleic Acid Heteroduplexes/chemistry ; Nucleic Acid Heteroduplexes/metabolism ; Palladium ; Pyridines/chemistry ; Pyridines/metabolism ; Spectrophotometry/methods
    Chemical Substances 5,10,15,20-tetrakis(2-N-methylpyridyl)porphyrinatopalladium(II) ; Metalloporphyrins ; Nucleic Acid Heteroduplexes ; Pyridines ; Palladium (5TWQ1V240M) ; DNA (9007-49-2)
    Language English
    Publishing date 1998
    Publishing country United States
    Document type Comparative Study ; Journal Article
    ZDB-ID 1302703-7
    ISSN 1075-4261
    ISSN 1075-4261
    DOI 10.1002/(SICI)1520-6343(1998)4:5%3C341::AID-BSPY5%3E3.0.CO;2-E
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Spontaneous mutation frequencies in Salmonella: enhancement of G/C to A/T transitions and depression of deletion and frameshift mutation frequencies afforded by anoxic incubation.

    Hartman, Z / Hartman, P E / Barnes, W M / Tuley, E

    Environmental mutagenesis

    1984  Volume 6, Issue 5, Page(s) 633–650

    Abstract: ... in the hisG428 ochre mutant and also decreases the frequency of minus frameshift mutations in G/C-rich sequences ... in the his-D3052 and hisC3076 mutants. In contrast, the frequency of G/C-----A/T transition mutations increases ...

    Abstract Incubation of Salmonella typhimurium under anoxic conditions (0.1% oxygen or less) results in a substantial decrease in small (3-and 6-basepair) deletions in an A/T-rich region of the hisG gene in the hisG428 ochre mutant and also decreases the frequency of minus frameshift mutations in G/C-rich sequences in the his-D3052 and hisC3076 mutants. In contrast, the frequency of G/C-----A/T transition mutations increases substantially during anoxic growth of hisG46. Growth of revertants of strains carrying accessory deletions in the uvrB region of the Salmonella chromosome is drastically impaired on glucose minimal medium when oxygen partial pressures are below 0.1% oxygen.
    MeSH term(s) Aerobiosis ; Anaerobiosis ; Chromosome Deletion ; Genotype ; Mutation ; Oxygen/pharmacology ; Salmonella typhimurium/drug effects ; Salmonella typhimurium/genetics ; Salmonella typhimurium/growth & development ; Species Specificity
    Chemical Substances Oxygen (S88TT14065)
    Language English
    Publishing date 1984
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 392053-7
    ISSN 0192-2521
    ISSN 0192-2521
    DOI 10.1002/em.2860060503
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Strategies for the Use of Dupilumab in Eosinophilic Esophagitis.

    Sauer, Bryan G / Barnes, Barrett H / McGowan, Emily C

    The American journal of gastroenterology

    2023  Volume 118, Issue 5, Page(s) 780–783

    MeSH term(s) Humans ; Eosinophilic Esophagitis/drug therapy ; Antibodies, Monoclonal, Humanized/therapeutic use ; Enteritis
    Chemical Substances dupilumab (420K487FSG) ; Antibodies, Monoclonal, Humanized
    Language English
    Publishing date 2023-01-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390122-1
    ISSN 1572-0241 ; 0002-9270
    ISSN (online) 1572-0241
    ISSN 0002-9270
    DOI 10.14309/ajg.0000000000002206
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Cholera toxin and dibutyryl cyclic adenosine 3',5'-monophosphate sensitize gonadotropin-releasing hormone-stimulated inositol phosphate production to inhibition in protein kinase-C (PKC)-depleted cells: evidence for cross-talk between a cholera toxin-sensitive G-protein and PKC.

    Barnes, S J / Conn, P M

    Endocrinology

    1993  Volume 133, Issue 6, Page(s) 2756–2760

    Abstract: The present study assesses the relationship between G-proteins and protein kinase-C (PKC ... phospholipase-C at distinct sites. CTX activates a G-protein that increases cAMP. cAMP can then activate PKA ... between a CTX-sensitive G-protein and PKC. ...

    Abstract The present study assesses the relationship between G-proteins and protein kinase-C (PKC) in the gonadotrope. Cells were depleted of PKC with 1 microM phorbol 12-myristate 13-acetate for 12 h, followed by medium 199-BSA for 6 h before treatment with vehicle, pertussis toxin (PTX), cholera toxin (CTX), or (Bu)2cAMP (dBcAMP) for 18 h. PTX (10 ng/ml) significantly decreased GnRH-stimulated inositol phosphate (IP) production over a range of 10(-8)-10(-6) M GnRH. The degree of this inhibition was the same in control cells and PKC-depleted cells. Pretreatment with CTX (0.5 microgram/ml) significantly decreased GnRH-stimulated IP production over a range of 10(-9)-10(-6) M GnRH in PKC-depleted cells. This effect was mimicked by pretreatment with 3 mM dBcAMP. Although CTX and dBcAMP both decreased GnRH-stimulated IP production in control cells, this effect was enhanced in PKC-depleted cells. CTX (0.1 microgram/ml) and dBcAMP (3 mM) both enhanced GnRH-stimulated LH release, whereas PTX (100 ng/ml) had no effect. This was observed in control as well as PKC-depleted cells. Both PKA and PKC are capable of regulating IP turnover by phosphorylating phospholipase-C at distinct sites. CTX activates a G-protein that increases cAMP. cAMP can then activate PKA. In PKC-depleted cells, CTX inhibits GnRH-stimulated IP production. This effect is mimicked by dBcAMP, which suggests a role for PKA in the gonadotrope. The results of this study provide evidence for cross-talk between a CTX-sensitive G-protein and PKC.
    MeSH term(s) Animals ; Bucladesine/pharmacology ; Cells, Cultured ; Cholera Toxin/pharmacology ; Gonadotropin-Releasing Hormone/pharmacology ; Inositol Phosphates/antagonists & inhibitors ; Inositol Phosphates/biosynthesis ; Luteinizing Hormone/metabolism ; Pertussis Toxin ; Pituitary Gland/cytology ; Pituitary Gland/metabolism ; Protein Kinase C/deficiency ; Rats ; Virulence Factors, Bordetella/pharmacology
    Chemical Substances Inositol Phosphates ; Virulence Factors, Bordetella ; Gonadotropin-Releasing Hormone (33515-09-2) ; Bucladesine (63X7MBT2LQ) ; Luteinizing Hormone (9002-67-9) ; Cholera Toxin (9012-63-9) ; Pertussis Toxin (EC 2.4.2.31) ; Protein Kinase C (EC 2.7.11.13)
    Language English
    Publishing date 1993-12
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 427856-2
    ISSN 1945-7170 ; 0013-7227
    ISSN (online) 1945-7170
    ISSN 0013-7227
    DOI 10.1210/endo.133.6.8243300
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Book ; Online ; E-Book: Air pollution studies

    Passerini, G. / Borrego, Carlos / Longhurst, J. W. S. / Lopes, M. / Barnes, J.

    2020  

    Author's details editors G. Passerini, C. Borrego, J. Longhurst, M. Lopes, J. Barnes
    Keywords Electronic books
    Language English
    Size 1 Online-Ressource (ix, 139 Seiten), Illustrationen
    Publisher WIT Press
    Publishing place Southampton
    Publishing country Great Britain
    Document type Book ; Online ; E-Book
    Note Description based on publisher supplied metadata and other sources
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT020554757
    ISBN 978-1-78466-374-2 ; 9781784663735 ; 1-78466-374-3 ; 1784663735
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  7. Article ; Online: Simulation training to retool practicing orthopedic surgeons is rare.

    Cate, Graham / Barnes, C Lowry / Dickinson, Karen J

    Global surgical education : journal of the Association for Surgical Education

    2023  Volume 2, Issue 1, Page(s) 57

    Abstract: Purpose: Modern surgical practice is continuously changing as technology develops. New techniques are often implemented after a surgeon has made the transition to independent clinical practice. There is therefore a need to 'retool' technical skills. ... ...

    Abstract Purpose: Modern surgical practice is continuously changing as technology develops. New techniques are often implemented after a surgeon has made the transition to independent clinical practice. There is therefore a need to 'retool' technical skills. Additionally, practicing surgeons must maintain and develop skills such as leadership, communication, critical thinking, teaching, and mentoring. Our aim was to perform a scoping review to assess the current status of simulation education for practicing Orthopedic Surgeons (OS).
    Methods: A 10 year search of PubMed, ERIC, and Web of Science was performed with a medical librarian. Controlled vocabulary Medical Subject Headings terms and natural language were developed with subject matter experts describing simulation, training and OS. Two trained reviewers evaluated all abstracts for inclusion. Exclusion criteria were articles that did not assess simulation education involving practicing OS. Data were extracted from the included full text articles by two reviewers: details of study design, type of participants, type of simulation and role of OS in the educational event.
    Results: Initial search identified 1824 articles of which 443 were duplicates, and 1381 articles were further screened. Of these, 1155 were excluded, 226 full text articles were assessed for eligibility and 80 included in analysis. Most were published in the last 6 years and from the United States. The majority (99%) described technical skill simulations (arthroscopy 56%, screw placement 23%, ligament reconstruction 19%). OS were rarely the only learners with 91% studies also having residents participate. OS were the targeted learner in 6% studies. OS provided content validity for 15 (19%) and construct validity in 59 (74%) studies.
    Conclusions: Simulation training to educate practicing OS is rare. OS are often used to validate work rather than being the center of an educational endeavor. A refocusing is needed to provide adequate training for practicing surgeons to retool skills as new techniques become available.
    Language English
    Publishing date 2023-05-23
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2731-4588
    ISSN (online) 2731-4588
    DOI 10.1007/s44186-023-00136-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Simultaneous immunization with B.C.G., diphtheria-tetanus, and oral poliomyelitis vaccines in children aged 13-14.

    Galbraith, N S / Crosby, G / Barnes, J M / Fernandes, R

    British medical journal

    1971  Volume 2, Issue 5755, Page(s) 193–197

    Abstract: The simultaneous administration of B.C.G. vaccine, diphtheria-tetanus toxoid aluminium hydroxide ... the attainment of high immunization rates with the vaccines given separately. No adverse reactions to B.C.G. or ... administration of tetanus toxoid aluminium hydroxide adsorbed, oral poliomyelitis, and B.C.G. vaccines only is ...

    Abstract The simultaneous administration of B.C.G. vaccine, diphtheria-tetanus toxoid aluminium hydroxide adsorbed vaccine, and oral poliovaccine was studied in 628 children aged 13-14 years between 1966 and 1969 in Newham, London. The efficacy of these vaccines was unaffected by administering them at the same time; routine simultaneous administration is considered justified when organizational difficulties prevent the attainment of high immunization rates with the vaccines given separately. No adverse reactions to B.C.G. or oral poliomyelitis vaccines took place, but 8% of children had moderately severe local reactions after diphtheria-tetanus aluminium hydroxide adsorbed vaccine, which were attributed to diphtheria toxoid.Serological studies showed the need for immunization against diphtheria, tetanus, and poliomyelitis at 13-14 years of age. Because of the adverse reactions to diphtheria toxoid, however, simultaneous administration of tetanus toxoid aluminium hydroxide adsorbed, oral poliomyelitis, and B.C.G. vaccines only is recommended at present.An "adult type" diphtheria-tetanus toxoid might overcome the problem of reactions, though in two to three years' time most children aged 13-14 years will have received diphtheria-tetanus-pertussis vaccine in infancy and reinforcement might then be accomplished by a small intradermal dose of the currently available fluid diphtheria-tetanus vaccine.Continued serological studies of diphtheria and tetanus antitoxins and polio antibody are necessary to determine the future need for reinforcement of immunity; such studies should become an essential part of the surveillance of the community immunization programme.
    MeSH term(s) Adolescent ; Adult ; Antibodies/analysis ; Antitoxins/analysis ; BCG Vaccine ; Child ; Diphtheria Toxoid/administration & dosage ; Diphtheria Toxoid/adverse effects ; Hemagglutination Inhibition Tests ; Humans ; Immunization ; London ; Neutralization Tests ; Poliovirus Vaccine, Oral/administration & dosage ; Preventive Health Services ; Rubella/immunology ; Tetanus Toxoid/administration & dosage
    Chemical Substances Antibodies ; Antitoxins ; BCG Vaccine ; Diphtheria Toxoid ; Poliovirus Vaccine, Oral ; Tetanus Toxoid
    Language English
    Publishing date 1971-04-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 80088-0
    ISSN 0007-1447 ; 0267-0623 ; 0959-8138 ; 0959-8146
    ISSN 0007-1447 ; 0267-0623 ; 0959-8138 ; 0959-8146
    DOI 10.1136/bmj.2.5755.193
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: The Treatment of Gout-1967.

    Barnes, C G / Mason, R M

    Journal of the Royal College of Physicians of London

    2019  Volume 1, Issue 4, Page(s) 427–441

    Language English
    Publishing date 2019-01-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 3005-3
    ISSN 0035-8819
    ISSN 0035-8819
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Successful Transition to Same Calendar Day Discharge in Total Joint Arthroplasty at an Academic Center.

    Mathews, Candler G / Stambough, Jeffrey B / Stronach, Benjamin / Siegel, Eric R / Barnes, C Lowry / Mears, Simon C

    Arthroplasty today

    2024  Volume 27, Page(s) 101354

    Abstract: Background: There has been a shift toward same-day discharge (SDD) in total joint arthroplasty (TJA) in recent years. Our clinical standard had been next-day discharge, but the COVID pandemic led to a hospital bed shortage, causing us to shift to SDD ... ...

    Abstract Background: There has been a shift toward same-day discharge (SDD) in total joint arthroplasty (TJA) in recent years. Our clinical standard had been next-day discharge, but the COVID pandemic led to a hospital bed shortage, causing us to shift to SDD directly from the Post-Anesthesia Care Unit (PACU). The aim of our project was to investigate if the SDD protocol was successful and if it changed complications or 90-day readmission rates. Our secondary aim was to investigate if the protocol created disparities in patient selection.
    Methods: A retrospective review compared the first 100 patients intended to discharge from PACU to the 100 patients prior to the SDD protocol undergoing elective primary TJA procedures at our academic institution from September 1, 2020, to March 23, 2021. The SDD protocol started on November 19, 2020.
    Results: During this SDD period, 98% (98/100) of patients were successfully discharged from the PACU. The 90-day readmission rate changed from 0% to 2% (
    Conclusions: The transition to same SDD in TJA at our academic institution was successfully implemented without markedly increasing complications, readmissions, or changing patient selection. The COVID-19 pandemic likely influenced the recovery of patients before and after the protocol. Future studies are needed to validate this data during the post-COVID era.
    Language English
    Publishing date 2024-03-16
    Publishing country United States
    Document type Journal Article
    ISSN 2352-3441
    ISSN 2352-3441
    DOI 10.1016/j.artd.2024.101354
    Database MEDical Literature Analysis and Retrieval System OnLINE

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