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Scheffler M, Dugan M, Saleh M, Koleczko S, Brägelmann J, Arolt C, Nogova L, Riedel R, Michels S, Eisert A, Fischer R, Scharpenseel H, Weber JP, Scheel A, Merkelbach-Bruse S, Büttner R, Lafleur F, Wild R, Catanzariti L, Hillmer A, Wolf J. EP08.02-106 KEAP1/NFE2L2 Transcriptomic Signature Predicts Survival in Advanced Stage NSCLC Patients Without Actionable Driver Mutations. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.789] [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: 10/14/2022]
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Arolt C, Dugan M, Wild R, Richartz V, Holz B, Scheel A, Brägelmann J, Merkelbach-Bruse S, Wolf J, Büttner R, Lafleur F, Scheffler M, Catanzariti L, Hillmer A. EP08.02-031 NRF2 Pathway Signature Predicts KEAP1/NFE2L2 Mutations and Reveals Alternative Pathway-Activating Mutations in NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.713] [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: 10/14/2022]
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Kervarrec T, Pissaloux D, Poilane J, Tirode F, Tallet A, Collin C, Tallegas M, Berthon P, Gaboriaud P, Sohier P, Calonje E, Luzar B, Goto K, Cokelaere K, Lamant L, Balme B, Wild R, Neuville A, Deschamps L, Auberger E, Paumier V, Bonte H, Moulonguet I, Plantier F, Cales V, Pinsolle V, Roblet D, Dupuy F, Dallot A, Seris A, Jouary T, Houben R, Schrama D, Hesbacher S, Macagno N, Battistella M, Cribier B, Vergier B, Fouchardière A, Jullie M. Recurrent
FOXK1
::
GRHL
and
GPS2
::
GRHL
fusions in trichogerminoma. J Pathol 2022; 257:96-108. [DOI: 10.1002/path.5872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 12/14/2021] [Accepted: 01/17/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Thibault Kervarrec
- Department of Pathology Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
- “Biologie des infections à polyomavirus” team, UMR INRA ISP 1282 Université de Tours Tours France
- CARADERM Network
| | - Daniel Pissaloux
- Department of Biopathology Center Léon Bérard Lyon France
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Center of Lyon, Equipe Labellisée Ligue contre le Cancer Lyon France
| | - Jeremie Poilane
- Department of Pathology Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
- Platform of Somatic Tumor Molecular Genetics Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
- Department of Pathology Centre Hospitalier Universitaire de Angers Angers France
| | - Franck Tirode
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Center of Lyon, Equipe Labellisée Ligue contre le Cancer Lyon France
| | - Anne Tallet
- Platform of Somatic Tumor Molecular Genetics Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
| | - Christine Collin
- Platform of Somatic Tumor Molecular Genetics Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
| | - Matthias Tallegas
- Department of Pathology Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
- Platform of Somatic Tumor Molecular Genetics Université de Tours, Centre Hospitalier Universitaire de Tours Tours France
| | - Patricia Berthon
- “Biologie des infections à polyomavirus” team, UMR INRA ISP 1282 Université de Tours Tours France
| | - Pauline Gaboriaud
- “Biologie des infections à polyomavirus” team, UMR INRA ISP 1282 Université de Tours Tours France
| | - Pierre Sohier
- CARADERM Network
- Faculté de Médecine Paris Centre Santé University of Paris Paris France
- Department of Pathology Hôpital Cochin, AP‐HP Centre‐Université de Paris Paris France
| | - Eduardo Calonje
- Department of Dermatopathology St John's Institute of Dermatology, St Thomas's Hospital London UK
| | - Boštjan Luzar
- Institute of Pathology Medical Faculty University of Ljubljana Ljubljana Slovenia
| | - Keisuke Goto
- Department of Pathology Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital Tokyo Japan
- Department of Diagnostic Pathology Shizuoka Cancer Center Hospital, Sunto Japan
- Department of Diagnostic Pathology and Cytology Osaka International Cancer Institute Osaka Japan
- Department of Dermatology Hyogo Cancer Center Akashi Japan
| | | | - Laurence Lamant
- CARADERM Network
- Department of Pathology, CHU Toulouse, Institut Universitaire du Cancer Toulouse Oncopole Université Toulouse III Paul Sabatier Toulouse France
| | - Brigitte Balme
- CARADERM Network
- Department of Pathology Centre Hospitalier Universitaire de Lyon Lyon France
| | | | - Agnes Neuville
- Contades Office of Pathological Anatomy and Cytology Strasbourg France
| | - Lydia Deschamps
- CARADERM Network
- Department of Pathology, APHP Bichat Hospital Paris France
| | - Elisabeth Auberger
- Service d'anatomie et cytologie pathologiques Hopital Simone Veil Eaubonne France
| | | | | | | | - Françoise Plantier
- Department of Pathology Hôpital Cochin, AP‐HP Centre‐Université de Paris Paris France
- Cabinet Mathurin Moreau Paris France
| | - Valérie Cales
- Department of Pathology Centre hospitalier de Pau Pau France
| | - Vincent Pinsolle
- Department of plastic and reconstructive surgery Hôpital Haut‐Lévêque, Centre hospitalier universitaire de Bordeaux Pessac France
| | - Denis Roblet
- Department of Pathology Centre hospitalier d'Angouleme Saint Michel France
| | - Frantz Dupuy
- Laboratoire de cytologie et d'anatomie pathologiques», le Bouscat France
| | - Alexiane Dallot
- Centre national de Dermatopathologie‐La Roquette Paris France
| | | | - Thomas Jouary
- CARADERM Network
- Department of Dermatology Centre Hospitalier de Pau Pau France
| | - Roland Houben
- Department of Dermatology, Venereology and Allergology University Hospital Würzburg, Josef‐Schneider‐Straße 2 Würzburg Germany
| | - David Schrama
- Department of Dermatology, Venereology and Allergology University Hospital Würzburg, Josef‐Schneider‐Straße 2 Würzburg Germany
| | - Sonja Hesbacher
- Department of Dermatology, Venereology and Allergology University Hospital Würzburg, Josef‐Schneider‐Straße 2 Würzburg Germany
| | - Nicolas Macagno
- CARADERM Network
- Department of Biopathology Center Léon Bérard Lyon France
- Department of Pathology Timone University Hospital Marseille France
| | - Maxime Battistella
- CARADERM Network
- Department of Pathology, APHP Hôpital Saint Louis Université Paris 7 Paris France
| | - Bernard Cribier
- CARADERM Network
- Dermatology Clinic, Hôpitaux Universitaires & Université de Strasbourg, Hôpital Civil Strasbourg France
| | - Beatrice Vergier
- Department of Pathology, Hôpital Haut‐Lévêque, CHU de Bordeaux Pessac France
| | - Arnaud Fouchardière
- CARADERM Network
- Department of Biopathology Center Léon Bérard Lyon France
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Center of Lyon, Equipe Labellisée Ligue contre le Cancer Lyon France
| | - Marie‐Laure Jullie
- CARADERM Network
- Department of Pathology, Hôpital Haut‐Lévêque, CHU de Bordeaux Pessac France
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Williams R, Brown J, Rider A, Wild R, Clayton E, Method M. 239P Impact of clinical characteristics, patients' perception of treatment goals and endocrine therapy history on HRQOL in HR+, HER2- early stage breast cancer patients. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.360] [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: 11/30/2022] Open
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5
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Mahtani R, Niyazov A, Lewis K, Wild R, Rider A, Arondekar B, Lux M. 157P Germline BRCA1/2 (gBRCA1/2) testing patterns among oncologists (ONC) treating HER2- advanced breast cancer (ABC): Results from a multi-country real-world study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.257] [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: 11/16/2022] Open
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6
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Wild R, McFadden A, O'Connor C, O'Grady K, Wada M. Prevalence of lameness in sheep transported to meat processing plants in New Zealand and associated risk factors. N Z Vet J 2019; 67:188-193. [PMID: 30971195 DOI: 10.1080/00480169.2019.1605944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 10/27/2022]
Abstract
Aims: To estimate the prevalence of lameness in sheep transported to meat processing plants in New Zealand, and to identify factors associated with the prevalence of lameness. Methods: The survey was conducted over the main meat processing season, running from October 2012 to the end of May 2013, at 10 sheep processing premises (five North Island and five South Island). A sample of 50 sheep selected from approximately six sheep consignments per week from each of the processing plants were scored for lameness, using a scale from Grade 1 (mild) to 3 (severe, non-weight-bearing). For each consignment the breed, age class and mean carcass weight were recorded. A multivariable regression model was fitted to identify the risk factors for prevalence of lame sheep (Grade 1-3) within a consignment. Results: In total, 1,854/78,833 (2.4 (95% CI = 2.2-2.5)%) sheep were diagnosed with lameness. Of the 1,854 lame sheep, lameness severity was Grade 1 in 1,349 (72.8%), Grade 2 in 450 (24.3%) and Grade 3 in 55 (3.0%) sheep. Within consignments ≥1 lame sheep was observed in 600/1,682 (35.7 (95% CI = 33.4-38.0)%) consignments. In Merino lambs and ewes the prevalence of lameness was greater than that of other breeds (p < 0.001), but in rams/wethers, the prevalence of lameness was lower in Merino than other breeds (p < 0.05). In sheep originating from the North Island, increasing mean carcass weight was associated with an increase in the prevalence of lameness (p < 0.001), but in the South Island prevalence was similar for different carcass weights (p = 0.5). In the North Island increasing yarding time was associated with an increase in the lameness prevalence (p < 0.01), but not in the South Island (p = 0.7). Sheep from the South Island generally had a higher prevalence of lameness than the North Island and the prevalence of lameness was lower over summer and autumn relative to the previous spring (p < 0.01). Conclusion: The results from this survey provided a measure of the prevalence of lameness in a section of the New Zealand sheep population, namely those animals sent for slaughter; as well as identification of several risk factors associated with lameness.
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Affiliation(s)
- R Wild
- a Ministry for Primary Industries Verification Services , Christchurch , New Zealand
| | - Amj McFadden
- b Ministry for Primary Industries , Diagnostic and Surveillance Services, Upper Hutt , New Zealand
| | - C O'Connor
- c AgResearch Ltd., Ruakura Research Centre , Hamilton , New Zealand
| | - K O'Grady
- a Ministry for Primary Industries Verification Services , Christchurch , New Zealand
| | - M Wada
- d EpiCentre, School of Veterinary Science , Massey University , Palmerston North , New Zealand
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Klems A, Wild R, Hinkel R, Kupatt C, Le Noble F. P560Arterial Flt1 regulates de novo arteriologenesis and arteriolar caliber involving novel endothelial remodeling events. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy060.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Klems
- Karlsruhe Institute of Technology (KIT), Dept. of Cell and Developmental Biology, Karlsruhe, Germany
| | - R Wild
- Karlsruhe Institute of Technology (KIT), Dept. of Cell and Developmental Biology, Karlsruhe, Germany
| | - R Hinkel
- Technical University of Munich, Dept. of Cardiology, Munich, Germany
| | - C Kupatt
- Technical University of Munich, Dept. of Cardiology, Munich, Germany
| | - F Le Noble
- Karlsruhe Institute of Technology (KIT), Dept. of Cell and Developmental Biology, Karlsruhe, Germany
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Dubaut J, Doan S, Wild R, Craig L, Williams W. Fenbendazole treatment is associated with increased cycle fecundity rate in subfertile baboons. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.02.015] [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: 10/19/2022]
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9
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Wild R, Gerasimaite R, Jung JY, Truffault V, Pavlovic I, Schmidt A, Saiardi A, Jessen HJ, Poirier Y, Hothorn M, Mayer A. Control of eukaryotic phosphate homeostasis by inositol polyphosphate sensor domains. Science 2016; 352:986-90. [DOI: 10.1126/science.aad9858] [Citation(s) in RCA: 313] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/31/2016] [Indexed: 12/23/2022]
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10
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Wild R, Balmer MC. Have we forgotten? Oral Manifestations of Kaposi's Sarcoma. Sex Transm Infect 2015; 91:345. [PMID: 26126530 DOI: 10.1136/sextrans-2015-052116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Richard Wild
- Liverpool Dental Hospital, Royal Liverpool and Broadgreen University Hospitals, Liverpool, UK
| | - Mary Colette Balmer
- Liverpool Dental Hospital, Royal Liverpool and Broadgreen University Hospitals, Liverpool, UK
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11
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Nugent E, Long A, Mathews C, Bishop E, Moxley K, Benbrook D, Wild R, McMeekin D. Biomarkers associated with metabolic syndrome, endometrioid adenocarcinoma (EC) of the uterus, and disease prognosis. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.07.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Casikar I, Lu C, Reid S, Bignardi T, Mongelli M, Morris A, Wild R, Condous G. Methotrexate vs placebo in early tubal ectopic pregnancy: a multi- centre double-blind randomised trial. Rev Recent Clin Trials 2012; 7:238-243. [PMID: 22540910 DOI: 10.2174/157488712802281321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 03/26/2012] [Revised: 04/12/2012] [Accepted: 04/18/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND In the 21st century, tubal ectopic pregnancies (EPs) are diagnosed earlier in their natural history due to transvaginal ultrasound technology. More women are haemodynamically stable and therefore can be offered non-invasive outpatient management with systemic Methotrexate (MTX). However there is no evidence that MTX is necessary in all these early EPs, as many may resolve spontaneously in the absence of any treatment. To date there are no published randomized trials comparing systemic MTX with a placebo. The aim of this study is to verify if MTX is more effective than the placebo in women with tubal EP and rising/plateauing serum human chorionic gonadotrophin (hCG) levels. METHODS/DESIGN This is a multi-centre double-blind randomized controlled trial conducted in Australia. Haemodynamically stable women with a confirmed ultrasound diagnosis of tubal EP and a rising/plateauing serum hCG & < 1500 IU/L are eligible for the trial. Women with a declining serum hCG, hCG > 1500 IU/L at 48 hrs, viable tubal EP, severe abdominal pain, evidence of haemoperitoneum on ultrasound, diagnostic uncertainty, non-tubal ectopic pregnancy, or women with contraindications to MTX will be excluded. Systemic MTX in a single dose intramuscular regimen (50mg/m2) is compared to an identical placebo in an outpatient setting. All women will attend for a serum hCG measurement on day 4. Provided patients are haemodynamically stable, they will attend for another blood test on day 7. If a decline in serum hCG > 15% between days 4 - 7 is observed, weekly blood tests will be scheduled until undetectable hCG levels. If serum hCG levels increase or decrease < 15% between days 4 - 7, a second dose of MTX will be given and weekly blood tests will be scheduled until undetectable serum hCG. If any increase in serum hCG > 15% between days 4 - 7 or at any subsequent follow-up, women will be treated with MTX. Primary outcome measure is treatment success, defined as uneventful decline of serum hCG to an undetectable level ( < 5 IU/L) by the initial intervention. Secondary outcome measures are re-interventions (additional systemic MTX injections and/or surgery for haemodynamic instability/trophoblast persistence), treatment complications and length of follow-up. DISCUSSION This trial will clarify the actual effectiveness of MTX in haemodynamically stable women with an early tubal EPs and rising or plateauing hCG.
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Affiliation(s)
- Ishwari Casikar
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit, Head of Department of Obstetrics and Gynaecology, Nepean Hospital, Penrith, NSW, Sydney, Australia
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Albertella M, Peng Y, McCormack S, Kahler J, Thomson S, Landfair D, Gokhale P, Bugaj J, Wild R, Pachter J. 346 Activated RON tyrosine kinase drives cellular proliferation, migration and invasion with corresponding tumor growth and metastasis in mice. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72053-x] [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: 11/28/2022] Open
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Bhagwat S, Crew A, Gokhale P, Cooke A, Kahler J, Yao Y, Chan A, Arnold L, Wild R, Pachter J. 320 POSTER Cellular characterization of OXA-01, a potent and selective dual mTORC1 and mTORC2 kinase inhibitor. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72254-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Rosenfeld-Franklin M, Silva S, Pirritt C, Cooke A, Bittner M, Wolf J, Epstein D, Wild R. Antitumor efficacy of OSI-930 and the molecular targeted agent erlotinib in preclinical xenograft models. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.14596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Spear WE, Le Comber PG, Vepřek S, Wild R. Electronic properties of amorphous phosphorus prepared by chemical transport in a glow discharge. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/13642817808245336] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- W. E. Spear
- a Carnegie Laboratory of Physics , University of Dundee , Dundee , DD1 4HN , Scotland
| | - P. G. Le Comber
- a Carnegie Laboratory of Physics , University of Dundee , Dundee , DD1 4HN , Scotland
| | - S. Vepřek
- b Anorganisch-Chemisches Institut der Universität , Zürich , Switzerland
| | - R. Wild
- b Anorganisch-Chemisches Institut der Universität , Zürich , Switzerland
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Visich JE, Zuckerman LA, Butine MD, Gunewardena KA, Wild R, Morton KM, Reynolds TC. Safety and pharmacokinetics of recombinant factor XIII in healthy volunteers. A randomized, placebo-controlled, double-blind, multi-dose study. Thromb Haemost 2005; 94:802-7. [PMID: 16270634 DOI: 10.1160/th05-04-0292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Factor XIII (FXIII) is a plasma transglutaminase that covalently cross-links fibrin proteins to one another and to other proteins, increasing the mechanical strength of blood clots. Endogenous FXIII is the final enzyme in the clotting cascade and circulates as a heterotetramer comprising 2 FXIII-A subunits and 2 FXIII-B subunits. Recombinant human FXIII A2 (rFXIII) homodimer is produced in Saccharomyces cerevisiae. Upon injection, rFXIII combines with the free FXIIIB subunit that circulates in excess to form the rA2B2 tetramer. In this placebo-controlled, double-blind, multi-dose study, the safety, pharmacokinetics, and pharmacodynamics of rFXIII were studied in 24 healthy volunteers, who were randomized in 2 cohorts of 12 subjects each. In each cohort, 8 subjects received 5 daily intravenous doses of rFXIII (10 or 25 U/kg), and 4 subjects received placebo. Recombinant FXIII was well tolerated. No deaths or serious adverse events occurred. The type and frequency of adverse events showed no pattern or dose response. No clinically significant changes in haematology, serum chemistry, or urinalysis laboratory values were observed. No clinical coagulopathy or thrombosis was observed. Recombinant FXIII did not produce any anti-yeast or anti-FXIII antibodies. After 5 daily doses of rFXIII, accumulation indices indicated a 3 to 4fold accumulation of rFXIII in plasma. The elimination half-life, estimated for rFXIII as the heterotetramer, ranged from 228-346 hours for the 10U/kg dose group and 167-197 hours for the 25U/kg dose group. The safety, pharmacokinetic, and immunogenic profile of rFXIII suggests it may have potential use in patients with congenital or acquired FXIII deficiency.
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Luo FR, Yang Z, Dong H, Camuso A, McGlinchey K, Fager K, Flefleh C, Kan D, Inigo I, Castaneda S, Rose WC, Kramer RA, Wild R, Lee FY. Correlation of pharmacokinetics with the antitumor activity of Cetuximab in nude mice bearing the GEO human colon carcinoma xenograft. Cancer Chemother Pharmacol 2005; 56:455-64. [PMID: 15947929 DOI: 10.1007/s00280-005-1022-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2004] [Accepted: 01/06/2005] [Indexed: 10/25/2022]
Abstract
PURPOSE The epidermal growth factor receptor (EGFR), a protein tyrosine kinase expressed in many types of human cancers including colon and breast, has been strongly associated with tumor progression. Cetuximab, an IgG1 anti-EGFR chimeric mouse/human monoclonal antibody, has been proven to be effective in the treatment of advanced colon cancer. To date, there has not been a study to systematically evaluate the pharmacokinetics (PK) of Cetuximab in a preclinical model and to further explore any correlation of drug exposure between animal models and cancer patients. In the present study, we characterized the PK of Cetuximab in nude mice at efficacious dose levels and further compared the preclinical optimal dose and active plasma drug concentration with those determined in clinical studies. EXPERIMENTAL DESIGN The antitumor activity of Cetuximab was evaluated using the GEO human colon carcinoma xenografts implanted subcutaneously in nude mice. The drug was administered ip every 3 days for five total injections (inj) (q3dx5) at dose levels ranging from 1 mg/inj to 0.04 mg/inj. The plasma PK of Cetuximab was determined at dose levels of 1.0, 0.25, and 0.04 mg/inj with a single bolus iv or ip administration in nude mice. The tumoral PK of Cetuximab was determined at dose levels of 0.25, and 0.04 mg/inj with a single bolus ip administration in nude mice bearing GEO tumor xenografts. The plasma and tumoral levels of Cetuximab were quantitated by an ELISA assay. RESULTS Cetuximab demonstrated a dose-dependent antitumor activity at dose levels of 0.25, 0.1, and 0.04 mg/inj, with a statistically significant tumor growth delay (in reaching a tumor target size of 1 gm) of 18 days (P < 0.001), 12.3 days (P < 0.01), and 10 days (P < 0.01) for 0.25, 0.1, and 0.04 mg/inj, respectively. A separate study employing the same treatment schedule showed that Cetuximab was equally active at dose levels ranging from 0.25 mg/inj to 1 mg/inj. Therefore, dose levels of Cetuximab from 1 mg/inj to 0.04 mg/inj can be considered to be within the efficacious range, while dose levels of 0.25 mg/inj or higher appeared to be optimal for the antitumor activity of Cetuximab in the GEO tumor model. When Cetuximab was given iv to mice, the elimination half life (t(1/2)) was 39.6, 37.8, and 42.2 h for doses of 1.0, 0.25, and 0.04 mg/inj, respectively, suggesting a similar disposition kinetics of Cetuximab within this dose range. The volume of distribution (V(d)) ranged from 0.062 l/kg to 0.070 l/kg, suggesting that Cetuximab is primarily confined to the plasma compartment with limited peripheral tissue distribution. Clearance (CL) was similar and no apparent PK saturation was observed across the dose ranging from 0.04 mg/inj to 1.0 mg/inj. When mice were administered with a single bolus ip administration at doses of 1, 0.25, and 0.04 mg/inj, the maximum plasma concentration (C(max)) was 407.6, 66.4, and 16.5 microg/ml. The area under the curve of plasma drug concentration (AUC) was 19212.4, 3182.4, and 534.5 microg/ml h, for 1.0, 0.25, and 0.04 mg/inj, respectively. The average steady state plasma concentration (C(ss avg)) for the multiple dosing schedule was estimated to be 73.1 microg/ml at 0.25 mg/inj and was considered as an active plasma drug concentration. The maximum tumoral concentration of Cetuximab was 2.6 and 0.53 ng/mg-tumor while the tumoral drug exposure was 112.6 and 18.3 ng/mg h for 0.25 and 0.04 mg/inj, respectively. The EGFR was estimated to be nearly completely occupied by Cetuximab at the optimal dose of 0.25 mg/inj. CONCLUSION In the present study, we compared the preclinical optimal dose and the corresponding active plasma concentration determined in mice with those being observed in cancer patients, i.e. 65-100 microg/ml. The preclinical optimal dose of 0.25 mg/inj was significantly lower than the current clinical dose. However, the active plasma concentration at 0.25 mg/inj is within the range of the active drug concentrations in cancer patients treated with Cetuximab under the current optimal dosing regimen. It appears that the active plasma drug concentration determined in preclinical model predicts better than the optimal preclinical dose for the clinical development of antibody drugs.
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Affiliation(s)
- F R Luo
- Pharmaceutical Research Institute, Oncology Drug Discovery, Bristol-Myers Squibb Company, Princeton, NJ 08543, USA.
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Wild R, Yokoyama Y, Dings RPM, Ramakrishnan S. VEGF-DT385 toxin conjugate inhibits mammary adenocarcinoma development in a transgenic mouse model of spontaneous tumorigenesis. Breast Cancer Res Treat 2004; 85:161-71. [PMID: 15111774 DOI: 10.1023/b:brea.0000025407.02896.ec] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Previous experiments have shown that a vascular endothelial growth factor (VEGF)-DT385 toxin conjugate inhibits endothelial cell proliferation, angiogenesis and solid tumor growth in a xenotransplant model system. Here, we report that VEGF-DT385 toxin conjugate effectively inhibits spontaneous tumorigenesis. The C3(1)/SV40 TAg transgenic mouse model of mammary gland carcinogenesis was used to determine the effectiveness of VEGF-DT385 toxin conjugate in delaying the onset of disease and the development of solid tumors. Animals were treated daily with conjugate for a period of 7 days. Therapy was initiated at week 14 of development before any visible adenocarcinomas were evident. Treatment of mice with VEGF-DT385 toxin conjugate significantly delayed the onset of tumorigenesis and inhibited solid tumor growth by more than 92%. Furthermore, conjugate treated animals showed less than twice the number of tumor nodules when compared to control mice. Finally, this vascular targeting agent significantly increased survival time of animals by 5 weeks. VEGF-DT385 toxin conjugate resulted in temporary weight loss and no long-lasting toxicity was seen. More importantly, using this established tumor model, VEGF-DT385 toxin conjugate appeared to be as effective as a similar treatment schedule with recombinant human endostatin. Our results suggest that VEGF-DT385 toxin conjugate is a potent inhibitor of mammary adenocarcinoma growth and might be useful in breast cancer therapy.
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Affiliation(s)
- R Wild
- Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN 55455, USA
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Rose W, Wild R. 522 Oral taxane BMS-275183 demonstrates therapeutic synergy in human tumor xenografts when combined with cetuximab. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80530-5] [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: 11/28/2022] Open
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21
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Gupta K, Gupta P, Wild R, Ramakrishnan S, Hebbel RP. Binding and displacement of vascular endothelial growth factor (VEGF) by thrombospondin: effect on human microvascular endothelial cell proliferation and angiogenesis. Angiogenesis 2003; 3:147-58. [PMID: 14517432 DOI: 10.1023/a:1009018702832] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Vascular endothelial growth factor (VEGF) is a specific angiogenic factor, and thrombospondin (TSP), is a potent inhibitor of angiogenesis. To better understand the role of TSP as an anti-angiogenic agent, we have identified its specific domains that participate in its anti-angiogenic activity and examined the mechanism of its inhibitory effect on VEGF(165) induced angiogenesis. Exogenously added TSP inhibited VEGF(165) induced angiogenesis (proliferation and tube formation of human dermal microvascular endothelial cells [HDMEC] and neovascular outgrowth from human arterial rings). Although both VEGF(165) and TSP are heparin binding proteins, TSP had a higher affinity for (125)I-heparin than VEGF(165) (K(d1) 4 nM and K(d2) 14 nM for TSP; K(d) 91 nM for VEGF(165)). TSP displaced 36% of (125)I-VEGF(165) from HDMEC and this was comparable to the 27% reduction in (125)I-VEGF(165) binding to HDMEC upon cleavage of cell surface heparan sulfate (HS). About 35% of the mitogenic activity of VEGF(165) was attributable to its heparin binding region. These results indicate that a proportion of the mitogenic activity of VEGF(165) is inhibited by TSP via competition for cell surface HS. Further, (125)I-VEGF(165) bound directly to TSP in a saturable, concentration dependent manner, and heparin modulated this binding. The mAbs to the heparin binding domain to the type 1 and type 3 repeats of TSP inhibited the binding of VEGF(165) to TSP, and also blocked the inhibitory effect of TSP on VEGF(165) induced HDMEC proliferation. We conclude that (i) the anti-angiogenic activity of TSP is localized in its heparin binding domain and type 1 and type 3 repeats (ii) TSP inhibits angiogenesis by at least two separate mechanisms, (a) displacement of VEGF(165) from endothelial cell HS and (b) direct binding to VEGF(165).
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Affiliation(s)
- K Gupta
- Department of Medicine, University of Minnesota Medical School, Minneapolis 55455, USA.
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Affiliation(s)
- S Ramakrishnan
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
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Wild R, Dhanabal M, Olson TA, Ramakrishnan S. Inhibition of angiogenesis and tumour growth by VEGF121-toxin conjugate: differential effect on proliferating endothelial cells. Br J Cancer 2000; 83:1077-83. [PMID: 10993657 PMCID: PMC2363558 DOI: 10.1054/bjoc.2000.1439] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Vascular endothelial growth factor (VEGF) plays an important role in tumour angiogenesis. VEGF binds to tyrosine kinase receptors, which are expressed almost exclusively on tumour endothelium. Therefore, VEGF can be used to target toxin molecules to tumour vessels for anti-angiogenic therapy. However, recent evidence suggests that VEGF can also bind in an isoform-specific fashion to a newly identified neuropilin-1 (NP-1) receptor. NP-1 is widely expressed in normal tissue and presents a potential target for unwanted toxicity. As a consequence, we investigated whether the VEGF121 isoform, which lacks the NP-1 binding domain, could be used to target toxin polypeptides to tumour vasculature. Treatment of endothelial cells with a VEGF121-diphtheria toxin (DT385) conjugate selectively inhibited proliferating endothelial cells, whereas confluent cultures were completely resistant to the construct. In addition, VEGF121-DT385 conjugate treatment completely prevented tumour cell induced angiogenesis in vivo. Most importantly, the conjugate inhibited tumour growth in athymic mice and induced tumour-specific vascular damage. There was also no apparent toxicity associated with the treatment. Our results suggest that proliferating endothelial cells are highly sensitive to VEGF121-toxin conjugates and that the binding to NP-1 receptors is not necessary for efficient inhibition of tumour growth.
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Affiliation(s)
- R Wild
- SUGEN Inc, 230 East Grand Avenue, South San Francisco, CA 94080-4811, USA
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Wild R, Ramakrishnan S, Sedgewick J, Griffioen AW. Quantitative assessment of angiogenesis and tumor vessel architecture by computer-assisted digital image analysis: effects of VEGF-toxin conjugate on tumor microvessel density. Microvasc Res 2000; 59:368-76. [PMID: 10792968 DOI: 10.1006/mvre.1999.2233] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tumor growth is angiogenesis dependent. As a consequence, strategies aimed at disrupting this mechanism are heavily investigated. Several angiogenesis assays are used to directly compare the efficacy of anti-angiogenic compounds. However, objective assessment of new vascular growth has been difficult to achieve. The aim of this study was to test and develop a computer-assisted image analysis method that would give an unbiased quantification of the microvessel density. Human tumors were grown in athymic mice and tumor biopsies were taken after a weeklong treatment with VEGF-toxin conjugate. Frozen tumor sections were prepared and stained with PE-conjugated anti-CD-31 antibodies and vessels were imaged with a fluorescence microscope. Vessel density was analyzed by quantifying PE-positive pixels per recorded field. In addition, images were further processed to investigate morphological differences by an automated binarization and skeletonization protocol. This procedure allowed the computer-assisted estimation of important angiogenic parameters such as total vessel number, length, and branch points. Based on these indices, differences in the angiogenic response between control tumors and those treated with VEGF-toxin conjugate were readily detected (P < 0.007 for all parameters). More importantly, computer-generated measurements correlated well with manual microvessel counts and showed significantly less variation. Our results suggest that computer-assisted image analysis represents a rapid, objective, and alternative method for the quantitative assessment of tumor angiogenesis and vessel architecture.
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Affiliation(s)
- R Wild
- Department of Pharmacology, University of Minnesota Medical School, Minneapolis, Minnesota 55455, USA
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25
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Wild R. Re: GDC specialist list. Br J Oral Maxillofac Surg 2000; 38:81. [PMID: 10783457 DOI: 10.1054/bjom.2000.0289] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Sangwan VS, Akpek EK, Voo I, Zhao T, Pinar V, Yang J, Christen W, Baltatzis S, Wild R, Foster CS. Krill protease effects on wound healing after corneal alkali burn. Cornea 1999; 18:707-11. [PMID: 10571303 DOI: 10.1097/00003226-199911000-00014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To study the effect of a novel protease in the development and progression of corneal ulceration secondary to alkali burning. METHODS By using a 4N alkali burn model of corneal ulceration in rabbits, the effects and efficacy of topical application of a novel protease (PHM-101) capable of degrading metalloproteinases was studied for 28 days of treatment and 7 days off treatment for its effect on corneal ulceration and recurrent erosion. RESULTS At day 28, both the protease- and placebo-treated groups had different numbers of eyes showing reepithelialization (nine (45%) of 20 and six (33%) of 18, respectively]. By day 35 the protease-treated group had significantly fewer recurrent epithelial defects [two (13%) of 15 vs. eight (61%) of 13; p = 0.02]. Similarly, at day 35 the protease-treated group showed significantly less corneal ulceration [two (13%) of 15 vs. six (46%) of 13; p = 0.02], and those ulcers were of a lesser severity (three units vs. 17.76 units). No difference was found in the degree of stromal edema or neovascularization, nor was there any difference in histopathologic characteristics of inflammatory cell infiltration and corneal scarring. CONCLUSION We conclude that this novel protease is efficient in reducing recurrent corneal epithelial defects and stromal ulceration after alkali burning.
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Affiliation(s)
- V S Sangwan
- Department of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston 02114, USA
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27
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Cuello M, Galleguillos G, Zárate C, Córdova M, Brañes J, Chuaqui R, Wild R. [Frozen-section biopsy in ovarian neoplasm diagnosis: diagnostic correlation according to diameter and weight in tumors of epithelial origin]. Rev Med Chil 1999; 127:1199-205. [PMID: 10835736] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND Adequate management and treatment of ovarian carcinoma requires a complete surgical staging supported by frozen-section examination. To achieve this goal it is necessary a high level of accuracy. AIM To evaluate the accuracy of frozen-sections in ovarian carcinoma considering the influence of tumor diameter and weight. PATIENTS AND METHODS Retrospective study of frozen-sections performed in patients with ovarian tumors who underwent surgery. Frozen- and permanent-sections were divided into three categories (benign, borderline and malignant) and stratified by diameter (< 10 cm, 10 to 20 cm, > 20 cm) and weight (< 700 g, 700 a 1400 g, > 1400 g). The diagnostic correlation, sensitivity, specificity, predictive values and accuracy of each frozen-section diagnosis were determined. RESULTS Eight hundred forty two ovarian tumors that underwent frozen-sections between January 1988 and October 1998 were studied. Final diagnosis was 86.7% benign, 2.7% low malignant potential (LMP) and 10.6% malignant. The diagnosis correlation between frozen- and permanent-sections was 98.2%. Misdiagnosis was in epithelial ovarian tumors, particularly in LMP tumors. Sensitivity, specificity, positive- and negative-predictive values and accuracy of the four hundred eighty nine epithelial tumor were 92.6%, 99.2%, 96.7%, 98.2% and 97.9%, respectively. Diagnostic correlation was higher in epithelial ovarian tumors with diameter < 10 cm (98.2% v/s 93.8%) and weight < 700 g (96.9% v/s 88.9%). CONCLUSIONS Diagnostic correlation with permanent-section examination, sensitivity, specificity and predictive values of frozen-sections are high in ovarian tumors. Accurate diagnosis at frozen sections of epithelial ovarian tumors with diameter > 10 cm or weight > 700 g (particularly in LMP tumors) is difficult because of the extensive sampling required. Frozen-sections diagnoses are important to determine the type and extent of surgery performed at the initial operation.
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Affiliation(s)
- M Cuello
- Departamentos de Obstetricia-Ginecología y de Anatomía Patológica, Pontificia Universidad Católica de Chile, Santiago, Chile
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Rana A, Habib FK, Halliday P, Ross M, Wild R, Elton RA, Chisholm GD. A case for synchronous reduction of testicular androgen, adrenal androgen and prolactin for the treatment of advanced carcinoma of the prostate. Eur J Cancer 1995; 31A:871-5. [PMID: 7646913 DOI: 10.1016/0959-8049(95)00233-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present study was undertaken mainly to investigate whether prolactin manipulation combined with maximal androgen blockage improves the effectiveness of treatment in advanced prostatic cancer. The efficacy of oral hydrocortisone as an alternative to commercial anti-androgens in reducing the adrenal androgens, and of bromocriptine in reducing the prolactin level were also examined. A consecutive series of 30 patients with untreated and advanced prostatic cancer were entered into a three-arm prospective randomised trial. 10 patients received subcapsular orchiectomy alone (arm 1), another 10 had subcapsular orchiectomy plus flutamide (arm 2), and the remaining 10 had subcapsular orchiectomy plus oral hydrocortisone and bromocriptine (arm 3). Clinical and biochemical parameters, including trans-rectal ultrasound-determined prostatic volumes, hormonal profiles and radionuclide bone scan were evaluated at regular intervals. At 12 months, serum testosterone was reduced by more than 90% in all arms, however, maximum suppression of androstenedione, prolactin, and reduction of prostatic volumes were only observed in arm 3; this was reflected by the significant improvement in clinical response in arm 3 compared with other arms. This study suggests that a combined maximal suppression of androgens and prolactin offers a significant improvement in response over conventional treatments without prolactin suppression in the treatment of advanced prostatic cancer. Importantly, a better clinical outcome in arm 3 was still apparent at the end of 36 months.
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Affiliation(s)
- A Rana
- University Department of Surgery/Urology, Western General Hospital, Edinburgh, U.K
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29
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Egelman EH, Yu X, Wild R, Hingorani MM, Patel SS. Bacteriophage T7 helicase/primase proteins form rings around single-stranded DNA that suggest a general structure for hexameric helicases. Proc Natl Acad Sci U S A 1995; 92:3869-73. [PMID: 7731998 PMCID: PMC42063 DOI: 10.1073/pnas.92.9.3869] [Citation(s) in RCA: 231] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Most helicases studied to date have been characterized as oligomeric, but the relation between their structure and function has not been understood. The bacteriophage T7 gene 4 helicase/primase proteins act in T7 DNA replication. We have used electron microscopy, three-dimensional reconstruction, and protein crosslinking to demonstrate that both proteins form hexameric rings around single-stranded DNA. Each subunit has two lobes, so the hexamer appears to be two-tiered, with a small ring stacked on a large ring. The single-stranded DNA passes through the central hole of the hexamer, and the data exclude substantial wrapping of the DNA about or within the protein ring. Further, the hexamer binds DNA with a defined polarity as the smaller ring of the hexamer points toward the 5' end of the DNA. The similarity in three-dimensional structure of the T7 gene 4 proteins to that of the Escherichia coli RuvB helicase suggests that polar rings assembled around DNA may be a general feature of numerous hexameric helicases involved in DNA replication, transcription, recombination, and repair.
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Affiliation(s)
- E H Egelman
- Department of Cell Biology and Neuroanatomy, University of Minnesota Medical School, Minneapolis 55455, USA
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Thompson D, Wild R, Merrick MV, Brydon G, Macintyre IM, Eastwood MA. Cholelithiasis and bile acid absorption after truncal vagotomy and gastroenterostomy. Br J Surg 1994; 81:1037-9. [PMID: 7922058 DOI: 10.1002/bjs.1800810738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Gallbladder disease in the form of gallstones demonstrated by ultrasonography or previous cholecystectomy was found in 15 of 26 women of median age 69 (range 52-82) years who had had truncal vagotomy and gastroenterostomy performed a median of 27 (range 11-30) years previously, compared with eight of 31 healthy age- and sex-matched controls drawn from the community (P < 0.02). Bile acid malabsorption identified by retention of 23-selena, 25-homotaurocholate (75SeHCAT) occurred in only two of the 26 patients after vagotomy and there was no relationship between retention and the presence or absence of gallbladder disease. The serum concentration of 7 alpha-hydroxycholestenone, an indicator of bile acid turnover, was significantly lower in patients with gallbladder disease after vagotomy than in controls (mean(s.e.m.) 19.1(3.7) versus 31.4(4.4) ng/ml, P < 0.05). Bile acid malabsorption does not play a significant role in the pathogenesis of gallstones after vagotomy but decreased bile acid synthesis may be important. There is no correlation between retention of 75SeHCAT and 7 alpha-hydroxycholestenone levels in patients after vagotomy, indicating that bile acid synthesis and absorption are uncoupled in this situation.
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Affiliation(s)
- D Thompson
- Gastrointestinal Unit, Western General Hospital, Edinburgh, UK
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Abstract
Gastric mucosal tonometry was used to determine the adequacy of gastrointestinal perfusion in 10 patients undergoing elective myocardial revascularization. Patients were prospectively randomized to receive either pulsatile or nonpulsatile flow during cardiopulmonary bypass. All patients showed a reduction in gastric mucosal perfusion during bypass, manifested by a reduction in the gastric mucosal pH, which occurred independently of variations in the arterial pH. In the group of patients receiving nonpulsatile flow, this reduction was significantly greater (p < 0.05). Cardiopulmonary bypass using nonpulsatile flow is associated with the development of a gastric mucosal acidosis, which may have implications for the development of postoperative complications.
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Affiliation(s)
- J A Gaer
- Department of Cardiothoracic Surgery, Royal Postgraduate Medical School, Hammersmith Hospital, London, England
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Gómez R, Oyarzún E, Cortínez A, Barrena N, Massardo L, Wild R. [Ovarian cancer and dermatomyositis. A clinical case]. Rev Med Chil 1992; 120:1149-52. [PMID: 1341778] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Dermatomyositis (DM) is associated to malignant neoplasia in up to one third of the cases. Not considering breast neoplasia, ovarian cancer is the malignancy most frequently associated with DM in women. This study shows the evolution and outcome of a case of this association managed in our unit. The principal features of similar cases reported in the literature are summarized.
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Affiliation(s)
- R Gómez
- Departamento de Obstetricia y Ginecología, Pontificia Universidad Católica de Chile
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Badia J, Chuaqui R, Hamed F, Wild R, Barrena N, Mayerson D, Oyarzún E. [An intraoperative anatomicopathological study of myometrial penetration in endometrial cancer: its usefulness in making decisions on extending the primary surgical treatment]. Rev Chil Obstet Ginecol 1992; 57:420-3. [PMID: 1364567] [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: 03/25/2023]
Abstract
The accuracy of frozen section biopsy was evaluated determining the deep of myometrial invasion in 30 samples of hysterectomies performed because of endometrial cancer. Results were compared with the definitive biopsy. Two sections were performed guided by the site of largest lesion seen when the uterus was sectioned in a frontal plane. The diagnosis of myometrial invasion was well determined in 29 cases with a 96.6% of accuracy. We conclude that frozen section is an exact and low cost method to determine intraoperatively, deep of myometrial invasion. This method helps the surgeon to decide the extent of surgery, specially if lymphadenectomy is necessary, during staging laparotomy.
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Affiliation(s)
- J Badia
- Departamento de Obstetricia y Ginecología, Unidad de Ginecología Oncológica, Pontificia Universidad Católica de Chile
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Wild R, Hörig H, Filgueira L, Babst R, Heberer M. Influence of chronic low dose application of lipopolysaccharide on glutamine metabolism and immune function in rats. Clin Nutr 1992. [DOI: 10.1016/0261-5614(92)90291-w] [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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Mayerson D, Badía JI, Wild R, Barrena N, Duarte I, Martínez L, Vacarezza A. [Genital intraepithelial lesions in immunosuppressed female patients after renal transplant: cytologic, colposcopic, and histologic study]. Rev Med Chil 1991; 119:1254-8. [PMID: 9723076] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Twenty seven female patients immunosuppressed after renal transplantation were studied. Cytological, colposcopic and histologic studies of biopsies were used to determine the incidence of neoplastic intraepithelial lesions and those due to infection by human papilloma virus. Intraepithelial neoplasia was found in 7.4% and papilloma virus infection in 60%. Cervix cytology was insensitive (33%) for diagnosis of intraepithelial lesions. Therefore, cytology and colposcopy are recommended for routine follow up of immunosuppressed women.
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Affiliation(s)
- D Mayerson
- Departamento de Obstetricia y Ginecología, Escuela de Medicina, Pontificia Universidad Católica, Santiago de Chile
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Hartz A, Grubb B, Wild R, Van Nort JJ, Kuhn E, Freedman D, Rimm A. The association of waist hip ratio and angiographically determined coronary artery disease. Int J Obes (Lond) 1990; 14:657-65. [PMID: 2228400] [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] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Body fat distribution as measured by the ratio of waist circumference to hip circumference (WHR) is now accepted as an important risk factor for a number of diseases. This study evaluated the association of WHR and coronary artery disease (CAD). Measurements included the subjects' height, weight, waist girth, hip girth, significant CAD on coronary angiography, and cholesterol levels. A history of myocardial infarction, angina, diabetes or hypertension was obtained from subject interviews. The subjects were analyzed in two age groups: younger than age 60 (88 men and 39 women) and age 60 or older (85 men and 63 women). For older women the relative odds of CAD comparing women at the 75th percentile of WHR to women at the 25th percentile was 3.67 (P = 0.003), with a 95 percent confidence interval of 1.57-8.57. The relative odds was reduced to 2.80 after adjusting for all other risk factors. WHR was significantly associated with angiographic evidence of CAD in all women combined after adjusting for age (P = 0.0004), but it was not significantly associated with CAD in younger women or in men. The results suggest that in older women the risk of CAD increases with a greater percentage of body fat in the abdomen.
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Affiliation(s)
- A Hartz
- Division of Epidemiology and Biostatistics, Medical College of Wisconsin, Milwaukee 53226
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Wild R. National program on antibacterial residues in meat. Aust Vet J 1990; 67:N70. [PMID: 2375706 DOI: 10.1111/j.1751-0813.1990.tb07716.x] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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38
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Herbst CA, Schorlemmer G, Wild R. Patient acceptance and cleansing effectiveness of Golytely for colon surgery. N C Med J 1989; 50:63-6. [PMID: 2927514] [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: 01/03/2023]
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39
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Jaenicke L, Wild R. Buchbesprechungen. Naturwissenschaften 1988. [DOI: 10.1007/bf00367446] [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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Hartz AJ, Kelber S, Borkowf H, Wild R, Gillis BL, Rimm AA. The association of smoking with clinical indicators of altered sex steroids--a study of 50,145 women. Public Health Rep 1987; 102:254-9. [PMID: 3108939 PMCID: PMC1477848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
This study was designed to test the association of smoking with four clinically apparent conditions that may be related to altered sex steroids: natural and induced menopause, infertility, oligomenorrhea, and hirsutism. Data were obtained from the personal inventories of 50,145 women ages 20-59 years in TOPS, a weight reduction program. The age-adjusted odds ratios of each condition for heavy smokers compared with nonsmokers were 1.59 for natural menopause, 1.49 for induced menopause, 1.35 for infertility, 1.30 for oligomenorrhea among women younger than 40 years, 1.63 for oligomenorrhea among women 40-49 years, and 1.54 for hirsutism (P less than .05 for oligomenorrhea and P less than .001 for all other risks). The odds ratios were not substantially changed after adjustment for obesity, parity, and husband's education level. These results suggest that smoking may affect the ovaries or hormone metabolism, or both, with medical and cosmetic consequences.
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Raithel D, Noppeney T, Schweiger H, Wild R, Seitz B. [Early and late results following 244 reconstructions of the internal carotid artery with contralateral internal carotid occlusion]. Langenbecks Arch Chir 1985; 366:341-5. [PMID: 4058176 DOI: 10.1007/bf01836661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Between December 1974 and March 1985 244 reconstructions of the internal carotid artery with contralateral occlusion were performed. 7.3% of the patients were asymptomatic, 48.4% had typical transient ischemic attacks and 44.3% had a completed stroke. The postoperative mortality was 2.0% and a permanent neurologic deficit occurred in 3.3%. An intraluminal shunt was used in only 5.4%. The long-term survival rate after 5 years was 65.2 +/- 4.8%. In the follow-up period of 103 months 9.2% of the patients had a new stroke.
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Yazigi R, Wild R, Madrid J, Arraztoa J. Ifosfamide treatment of advanced ovarian cancer. Obstet Gynecol 1984; 63:163-6. [PMID: 6694809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
To determine the efficacy of ifosfamide in the treatment of advanced ovarian malignancy, 20 patients with stages III and IV epithelial ovarian cancer were treated with this agent. Of these, 15 received the drug as primary chemotherapy. The response rate was 33%, with a median duration of remission of 13 months. Five patients were treated with ifosfamide after failure with previous chemotherapy; no responses were seen in this group. Hematuria was observed in 2% of the treatment cycles with the use of the antidote mercapto-ethan-sulfonate acid. This study shows that though ifosfamide is an active drug in the treatment of patients with advanced ovarian cancer, it is not superior to traditional single alkylating agents.
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Stransky M, Wild R, Schönhauser R, Blumenthal A. [Nutrient and fiber content of infant food]. Helv Paediatr Acta 1982; 37:205-13. [PMID: 6288623] [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: 01/19/2023]
Abstract
The food given to 50 infants growing up in their family and 23 infants nursed in crèches was chemically analyzed in order to ascertain the nutrient and dietary fibre contents. The babies' age was between 6 and 12 months. The determination of energy percentages revealed a clear shift in favour of carbohydrates. Based on 1000 calories, the infants received 7.5-8.5 g of dietary fibre per day. Sodium content was too high whereas the iron intake was definitely insufficient. The baby food prepared in the family only showed slight differences in comparison with the food administered in crèches.
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Wild R, Stransky M, Schönhauser R, Blumenthal A. [Fiber and nutritional content of infant food]. Soz Praventivmed 1980; 25:182-3. [PMID: 6256992 DOI: 10.1007/bf02076984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
50 mothers with healthy, already weaned babies of between 6 and 9 months old took part of the study. The babies consumed 7.5 g of dietary fibre per 1000 calories daily. The sources of energy ratio showed a definite trend in favour of carbohydrates. The proportion of sodium was extremely high. The supply of iron proved to be greatly deficient.
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Slack N, Wild R. The Nature, Performance and Operating Characteristics of Series Production Systems. Int Jrnl of Op & Prod Mnagemnt 1980. [DOI: 10.1108/eb054663] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Indirect voiding radionuclide cystourethrography has been compared with micturating cystourethrography in 57 children with urinary tract infections. A quasi-quantitative technique utilizing a mini-computer to optimize the images from the gamma camera has been shown to be at least as sensitive as conventional radiological techniques but to give these results without catheterization, at a lower radiation dose and at lower cost.
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Wild R. On the Time-Dependence of the Force in Tests of impact sensitivity. Propellants Explos Pyrotech 1976. [DOI: 10.1002/prep.19760010303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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