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Trifan G, Goldenberg FD, Caprio FZ, Biller J, Schneck M, Khaja A, Terna T, Brorson J, Lazaridis C, Bulwa Z, Alvarado Dyer R, Saleh Velez FG, Prabhakaran S, Liotta EM, Batra A, Reish NJ, Ruland S, Teitcher M, Taylor W, De la Pena P, Conners JJ, Grewal PK, Pinna P, Dafer RM, Osteraas ND, DaSilva I, Hall JP, John S, Shafi N, Miller K, Moustafa B, Vargas A, Gorelick PB, Testai FD. Characteristics of a Diverse Cohort of Stroke Patients with SARS-CoV-2 and Outcome by Sex. J Stroke Cerebrovasc Dis 2020; 29:105314. [PMID: 32951959 PMCID: PMC7486061 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105314] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 12/14/2022] Open
Abstract
COVID-19 disease is associated with stroke All strokes subtypes are seen in association with COVID-19, with ischemic stroke being most prevalent The most common etiology for ischemic stroke in SARS-CoV2 infection is cryptogenic Sex plays an important role in stroke outcomes in patients with COVID-19 disease Males have higher rates of ICU admission, in-hospital complications and more likely to have worse outcome at hospital discharge compare with females
Background and Purpose Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection is associated with stroke. The role of sex on stroke outcome has not been investigated. To objective of this paper is to describe the characteristics of a diverse cohort of acute stroke patients with COVID-19 disease and determine the role of sex on outcome. Methods This is a retrospective study of patients with acute stroke and SARS-CoV-2 infection admitted between March 15 to May 15, 2020 to one of the six participating comprehensive stroke centers. Baseline characteristics, stroke subtype, workup, treatment and outcome are presented as total number and percentage or median and interquartile range. Outcome at discharge was determined by the modified Rankin Scale Score (mRS). Variables and outcomes were compared for males and females using univariate and multivariate analysis. Results The study included 83 patients, 47% of which were Black, 28% Hispanics/Latinos, and 16% whites. Median age was 64 years. Approximately 89% had at least one preexisting vascular risk factor (VRF). The most common complications were respiratory failure (59%) and septic shock (34%). Compared with females, a higher proportion of males experienced severe SARS-CoV-2 symptoms requiring ICU hospitalization (73% vs. 49%; p = 0.04). When divided by stroke subtype, there were 77% ischemic, 19% intracerebral hemorrhage and 3% subarachnoid hemorrhage. The most common ischemic stroke etiologies were cryptogenic (39%) and cardioembolic (27%). Compared with females, males had higher mortality (38% vs. 13%; p = 0.02) and were less likely to be discharged home (12% vs. 33%; p = 0.04). After adjustment for age, race/ethnicity, and number of VRFs, mRS was higher in males than in females (OR = 1.47, 95% CI = 1.03–2.09). Conclusion In this cohort of SARS-CoV-2 stroke patients, most had clinical evidence of coronavirus infection on admission and preexisting VRFs. Severe in-hospital complications and worse outcomes after ischemic strokes were higher in males, than females.
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Affiliation(s)
- G Trifan
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, U.S.A..
| | - F D Goldenberg
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - F Z Caprio
- Department of Neurology, Northwestern University, 633 Clark St, Evanston, IL 60208, U.S.A..
| | - J Biller
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - M Schneck
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - A Khaja
- AMITA Health - Alexian Brothers Hospital, 800 Biesterfield Rd, IL 60007, U.S.A..
| | - T Terna
- AMITA Health - Alexian Brothers Hospital, 800 Biesterfield Rd, IL 60007, U.S.A..
| | - J Brorson
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A
| | - C Lazaridis
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - Z Bulwa
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - R Alvarado Dyer
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - F G Saleh Velez
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - S Prabhakaran
- Department of Neurology, University of Chicago Hospital, Chicago, IL 60612, U.S.A..
| | - E M Liotta
- Department of Neurology, Northwestern University, 633 Clark St, Evanston, IL 60208, U.S.A..
| | - A Batra
- Department of Neurology, Northwestern University, 633 Clark St, Evanston, IL 60208, U.S.A..
| | - N J Reish
- Department of Neurology, Northwestern University, 633 Clark St, Evanston, IL 60208, U.S.A..
| | - S Ruland
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - M Teitcher
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - W Taylor
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - P De la Pena
- Department of Neurology, Loyola University Health System, 2160 S 1st Ave, Maywood, IL 60153, U.S.A..
| | - J J Conners
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - P K Grewal
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - P Pinna
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - R M Dafer
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - N D Osteraas
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - I DaSilva
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - J P Hall
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - S John
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - N Shafi
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, U.S.A..
| | - K Miller
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, U.S.A..
| | - B Moustafa
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, U.S.A..
| | - A Vargas
- Department of Neurological Sciences, Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612, U.S.A..
| | - P B Gorelick
- Department of Neurology, Northwestern University, 633 Clark St, Evanston, IL 60208, U.S.A..
| | - F D Testai
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, U.S.A..
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Hammond S, Drappatz J, Lee E, Muzikansky A, Weiss S, Kesari S, Wong E, Fadul C, Norden A, Beroukhim R, Alexander B, Ruland S, Ciampa A, Lafrankie D, Doherty L, McCluskey C, Smith K, Gerard M, Wen P. Interim Analysis of a Randomized Placebo-Controlled Pilot Trial of Armodafinil for Fatigue in Patients with Malignant Gliomas Undergoing Radiotherapy with or without Standard Chemotherapy Treatment (P07.104). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.104] [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: 11/15/2022] Open
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Lucas MR, Robinson KM, Koh ES, Hovey EJ, Wright KM, Simpson T, Price MA, Shafiq J, Kaadan N, Barton MB, Armstrong T, Wefel JS, Wang M, Won M, Bottomley A, Mendoza TR, Coens C, Werner-Wasik M, Brachman DG, Choucair AK, Mehta M, Gilbert MR, Spezeski J, de Melo SM, Taylor LP, Otero H, Zuurveld MA, Peerdeman SM, Bouma GJ, Feller RE, Klein M, Aaronson NK, Taphoorn MJB, Heimans JJ, Postma TJ, Gundy CM, Beute GN, Slotman BJ, Klein M, Satoer D, Vincent A, Dirven C, Smits M, Visch-Brink E, Vera-Bolanos E, Armstrong TS, Mendoza T, Fisher A, Kuo CW, Sherwood P, Peters KB, Coan AD, West MJ, Reardon DA, Desjardins A, Vredenburgh JJ, Friedman HS, Jones LW, Acquaye AA, Lin L, Aspenson AS, Cahill J, Vera-Bolanos E, Gilbert MR, Armstrong TS, Lamki T, Ammirati M, Lin L, Acquaye AA, Vera-Bolanos E, Cahill J, Gilbert MR, Armstrong TS, Lin L, Acquaye AA, Vera-Bolanos E, Cahill J, Gilbert MR, Armstrong TS, Lai JS, Acquaye A, Armstrong TS, Acquaye AA, Lin L, Aspenson AC, Cahill J, Vera-Bolanos E, Gilbert MR, Armstrong TS, Stell BV, Jacobs DI, Grimm SA, Rademaker A, Rice L, Schwartz M, Chandler J, Muro K, Helenowki IB, Marymont MH, Wagner LI, Mehta M, Raizer J, Gerard ME, Drappatz J, Muzikansky A, Weiss S, Kesari S, Wong E, Fadul CE, Norden AD, Quant EC, Beroukhim R, Alexander B, Ruland S, Ciampa AS, LaFrankie DC, Sceppa C, Smith KH, Hammond SN, Wen PY, Farace E, Sheehan J, Bonneau R, Glantz M, McDonald KL, Ryu S, Rock J, Jain R, Casas C, Schultz L, Pace M, Aho T, Horio M, Doshi P, Cahill J, Padhye N, Vera-Bolanos E, Gning I, Mendoza T, Gilbert M, Armstrong T, Hoover JM, Mandrekar J, Meyer FB, Parney IF. QUALITY OF LIFE. Neuro Oncol 2011. [DOI: 10.1093/neuonc/nor159] [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: 11/13/2022] Open
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Drappatz J, Lee EQ, Hammond S, Grimm SA, Norden AD, Beroukhim R, Gerard M, Schiff D, Chi AS, Batchelor TT, Doherty LM, Ciampa AS, Lafrankie DC, Ruland S, Snodgrass SM, Raizer JJ, Wen PY. Phase I study of panobinostat in combination with bevacizumab for recurrent high-grade glioma. J Neurooncol 2011; 107:133-8. [PMID: 21984064 DOI: 10.1007/s11060-011-0717-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Accepted: 09/16/2011] [Indexed: 01/13/2023]
Abstract
Bevacizumab is frequently used to treat patients with recurrent high-grade glioma (HGG), but responses are generally not durable. Panobinostat is a histone deacetylase inhibitor with anti-neoplastic and anti-angiogenic effects and may work synergistically with VEGF inhibitors. We performed a phase I study to evaluate the safety and tolerability of the combination of orally administered panobinostat with bevacizumab in patients with recurrent HGG. Patients with recurrent HGG were treated on a 3 + 3 trial design. Patients received bevacizumab 10 mg/kg every other week in combination with oral panobinostat. The starting dose of panobinostat was 20 mg three times per week, weekly (cohort 1). Due to concerns for thrombocytopenia with the weekly dosing regimen, the protocol was amended to examine an every other week regimen. Cohort 2 received panobinostat 20 mg three times per week, every other week, and cohort 3 received 30 mg three times per week, every other week. Dose-limiting toxicity during the first 30 days was used to determine the maximum-tolerated dose. Twelve patients (median age 50, median KPS 90) with recurrent HGG were enrolled. One dose-limiting toxicity (DLT) (Grade 3 thrombocytopenia) was observed in cohort 1. No DLTs were observed in cohorts 2 and 3. The following grade 3 toxicities were seen in one patient each: thrombocytopenia, hypophosphatemia, esophageal hemorrhage, and deep venous thrombosis. There were no grade 4 or 5 toxicities. There were three patients with partial responses and seven with stable disease. The recommended doses for further study are oral panobinostat 30 mg three times per week, every other week, in combination with bevacizumab 10 mg/kg every other week. A phase II clinical trial in recurrent HGG is underway.
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Affiliation(s)
- J Drappatz
- Center for Neuro-Oncology, Dana Farber/Brigham and Women's Cancer Center, 450 Brookline Avenue, SW 430, Boston, MA 02215, USA
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Calderon-Arnulphi M, Amin-Hanjani S, Alaraj A, Zhao M, Du X, Ruland S, Zhou XJ, Thulborn KR, Charbel FT. In vivo evaluation of quantitative MR angiography in a canine carotid artery stenosis model. AJNR Am J Neuroradiol 2011; 32:1552-9. [PMID: 21835941 DOI: 10.3174/ajnr.a2546] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE Large-vessel cerebral blood flow quantification has emerged as a potential predictor of stroke risk. QMRA uses phase-contrast techniques to noninvasively measure vessel flows. To evaluate the in vivo accuracy of QMRA for measuring the effects of progressive arterial stenosis, we compared this technique with invasive flow measurements from a sonographic transit-time flow probe in a canine model. MATERIALS AND METHODS A sonographic flow probe was implanted around the CCA of hound dogs (n = 4) under general anesthesia. Pulsatile blood flow and arterial pressure were continuously recorded during CCA flow measurements with QMRA. A vascular tourniquet was applied around the CCA to produce progressive stenosis and varying flow rates. Statistical comparisons were made by using the Pearson product moment correlation coefficient. RESULTS A total of 60 paired CCA flow measurements were compared. Mean blood flows ranged between 21 and 691 mL/min during QMRA acquisition as measured by the flow probe. The correlation coefficients between flow probe and QMRA measurements for mean, maximum, and minimum volume flow rates were 0.99 (P < .0001), 0.98 (P < .0001), and 0.96 (P < .0001), respectively. The overall proportional difference between the 2 techniques was 7.8 ± 1%. Measurements at higher flow rates and in the absence of arterial stenosis had the lowest PD. CONCLUSIONS Noninvasive CCA flow measurements by using QMRA are accurate compared with invasive flow-probe measurements in a canine arterial flow model with stenosis and may be useful for the evaluation of the hemodynamic effects of stenosis caused by cerebrovascular atherosclerosis.
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Drappatz J, Raizer JJ, Schiff D, Chi AS, Batchelor T, Snodgrass SM, Quant EC, Norden AD, Beroukhim R, Grimm SA, Doherty LM, Ciampa AS, LaFrankie DC, Ruland S, Gerard M, Hammond S, Wen PY. A phase I trial of LBH589 and bevacizumab for recurrent high-grade glioma (HGG). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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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Hammond S, Norden AD, Lesser GJ, Drappatz J, Fadul CE, Batchelor T, Quant EC, Beroukhim R, Muzikansky A, Ciampa AS, Doherty LM, LaFrankie DC, Ruland S, Bochacki CA, Griffin K, Gerard M, Sceppa C, Rosenfeld MR, Wen PY. Phase II study of dose-intense temozolomide in recurrent glioblastoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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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Barker CA, Chang M, Lassman AB, Beal K, Chan TA, Hunter K, Grisdale K, Ritterhouse M, Moustakas A, Iwamoto FM, Kreisl TN, Sul J, Kim L, Butman J, Albert P, Fine HA, Chamberlain MC, Alexandru D, Glantz MJ, Kim L, Chamberlain MC, Bota DA, Takahashi K, Ikeda N, Kajimoto Y, Miyatake S, Kuroiwa T, Iwamoto F, Lamborn K, Kuhn J, Wen P, Yung WKA, Gilbert M, Chang S, Lieberman F, Prados M, Fine H, Lu-Emerson C, Norden AD, Drappatz J, Quant EC, Ciampa AS, Doherty LM, LaFrankie DC, Wen PY, Sherman JH, Moldovan K, Yeoh HK, Starke BM, Pouratian N, Shaffrey ME, Schiff D, O'Connor PC, Kroon HA, Recht L, Montano N, Cenci T, Martini M, D'Alessandris QG, Banna GL, Maira G, De Maria R, Larocca LM, Pallini R, Kim CH, Yang MS, Cheong JH, Kim JM, Shonka N, Gilbert M, Alfred Yung WK, Piao Y, Liu J, Bekele N, Wen P, Chen A, Heymach J, de Groot J, Gilbert MR, Wang M, Aldape K, Sorensen AG, Mikkelsen T, Bokstein F, Woo SY, Chmura SJ, Choucair AK, Mehta M, Perez Segura P, Gil M, Balana C, Chacon I, Munoz J, Martin M, Flowers A, Salner A, Gaziel TB, Soerensen M, Hasselbalch B, Poulsen HS, Lassen U, Peyre M, Cartalat-Carel S, Meyronet D, Sunyach MP, Jouanneau E, Guyotat J, Jouvet A, Frappaz D, Honnorat J, Ducray F, Wagle N, Nghiemphu PL, Lai A, Cloughesy TF, Kairouz VF, Elias EF, Chahine GY, Comair YG, Dimassi H, Kamar FG, Parchman AJ, Nock CJ, Bartolomeo J, Norden AD, Drappatz J, Ciampa AS, Doherty LM, LaFrankie DC, Ruland S, Quant EC, Beroukhim R, Wen PY, Graber JJ, Lassman AB, Kaley T, Johnson DR, Kimmel DW, Burch PA, Cascino TL, Giannini C, Wu W, Buckner JC, Dirier A, Abacioglu U, Okkan S, Pak Y, Guney YY, Aksu G, Soyuer S, Oksuzoglu B, Meydan D, Zincircioglu B, Yumuk PF, Alco G, Keven E, Ucer AR, Tsung AJ, Prabhu SS, Shonka NA, Alistar AT, van den Bent M, Taal W, Sleijfer S, van Heuvel I, Smitt PAS, Bromberg JE, Vernhout I, Porter AB, Dueck AC, Karlin NJ, Hiramatsu R, Kawabata S, Miyatake SI, Kuroiwa T, Easson MW, Vicente MGH, Sahebjam S, Garoufalis E, Guiot MC, Muanza T, Del Maestro R, Kavan P, Smolin AV, Konev A, Nikolaeva S, Shamanskaya Y, Malysheva A, Strelnikov V, Vranic A, Prestor B, Pizem J, Popovic M, Khatua S, Finlay J, Nelson M, Gonzalez I, Bruggers C, Dhall G, Fu BD, Linskey M, Bota D, Walbert T, Puduvalli V, Ozawa T, Brennan CW, Wang L, Squatrito M, Sasayama T, Nakada M, Huse JT, Pedraza A, Utsuki S, Tandon A, Fomchenko EI, Oka H, Levine RL, Fujii K, Ladanyi M, Holland EC, Raizer J, Avram MJ, Kaklamani V, Cianfrocca M, Gradishar W, Helenowski I, McCarthy K, Mulcahy M, Rademaker A, Grimm S, Landolfi JC, Chen S, Peeraully T, Anthony P, Linendoll NM, Zhu JJ, Yao K, Mignano J, Pfannl R, Pan E, Vera-Bolanos E, Armstrong TS, Bekele BN, Gilbert MR, Alexandru D, Glantz MJ, Kim L, Chamberlain MC, Bota DA, Albrecht V, Juerchott K, Selbig J, Tonn JC, Schichor C, Sawale KB, Wolff J, Vats T, Ketonen L, Khasraw M, Kaley T, Panageas K, Reiner A, Goldlust S, Tabar V, Green RM, Woyshner EA, Cloughesy TF, Abe T, Morishige M, Shiqi K, Momii Y, Sugita K, Fukuyoshi Y, Kamida T, Fujiki M, Kobayashi H, Lavon I, Refael M, Zrihan D, Siegal T, Elias EF, Kairouz VF, Chahine GY, Comair YG, Dimassi H, Kamar FG, Tham CK, See SJ, Toh CK, Kang SH, Park KJ, Kim CY, Yu MO, Park CK, Park SH, Chung YG, Park KJ, Yu MO, Kang SH, Cho TH, Chung YG, Sasaki H, Sano K, Nariai T, Uchino Y, Kitamura Y, Ohira T, Yoshida K, Kirson ED, Wasserman Y, Izhaki A, Mordechovich D, Gurvich Z, Dbaly V, Vymazal J, Tovarys F, Salzberg M, Rochlitz C, Goldsher D, Palti Y, Ram Z, Gutin PH, Furuse M, Miyatake SI, Kawabata S, Kuroiwa T, Torcuator RG, Ibaoc K, Rafael A, Mariano M, Reardon DA, Peters K, Desjardins A, Sampson J, Vredenburgh JJ, Gururangan S, Friedman HS, Le Rhun E, Kotecki N, Zairi F, Baranzelli MC, Faivre-Pierret M, Dubois F, Bonneterre J, Arenson EB, Arenson JD, Arenson PK, Pierick M, Jensen W, Smith DB, Wong ET, Gautam S, Malchow C, Lun M, Pan E, Brem S, Raizer J, Grimm S, Chandler J, Muro K, Rice L, McCarthy K, Mrugala M, Johnston SK, Chamberlain M, Marosi C, Handisurya A, Kautzky-Willer A, Preusser M, Elandt K, Widhalm G, Dieckmann K, Torcuator RG, Opinaldo P, Chua E, Barredo C, Cuanang J, Grimm S, Phuphanich S, Recht LD, Rosenfeld SS, Chamberlain MC, Zhu JJ, Fadul CE, Swabb EA, Pope C, Beelen AP, Raizer JJ, Kim IH, Park CK, Han JH, Lee SH, Kim CY, Kim TM, Kim DW, Kim JE, Paek SH, Kim IA, Kim YJ, Kim JH, Nam DH, Rhee CH, Lee SH, Park BJ, Kim DG, Heo DS, Jung HW, Desjardins A, Peters KB, Vredenburgh JJ, Friedman HS, Reardon DA, Becker K, Baehring J, Hammond SN, Norden AD, Fisher DC, Wong ET, Cote GM, Ciampa AS, Doherty LM, Ruland SF, LaFrankie DC, Wen PY, Drappatz J, Brandes AA, Franceschi E, Tosoni A, Poggi R, Agati R, Bartolini S, Spagnolli F, Pozzati E, Marucci G, Ermani M, Taillibert S, Guillevin R, Dehais C, Bellanger A, Delattre JY, Omuro A, Taillibert S, Hoang-Xuan K, Barrie M, Guiu S, Chauffert B, Cartalat-Carel S, Taillandier L, Fabbro M, Laigre M, Guillamo JS, Geffrelot J, Rouge TDLM, Bonnetain F, Chinot O, Gil MJ, de las Penas R, Reynes G, Balana C, Perez-Segura P, Garcia-Velasco A, Gallego O, Herrero A, de Lucas CFC, Benavides M, Perez-Martin X, Mesia C, Martinez-Garcia M, Muggeri AD, Cervio A, Rojas M, Arakaki N, Sevlever GE, Diez BD, Muggeri AD, Cerrato S, Martinetto H, Diez BD, Peereboom DM, Brewer CJ, Suh JH, Chao ST, Parsons MW, Elson PJ, Vogelbaum MA, Sade B, Barnett GH, Shonka NA, Yung WKA, Bekele N, Gilbert MR, Kobyakov G, Absalyamova O, Amanov R, Rauschkolb PK, Drappatz J, Batchelor TT, Meyer LP, Fadul CE, Lallana EC, Nghiemphu PL, Kohanteb P, Lai A, Green RM, Cloughesy TF, Mrugala MM, Lee LK, Graham CA, Fink JR, Spence AM, Portnow J, Badie B, Liu X, Frankel P, Chen M, Synold TW, Al Jishi AA, Golan J, Polley MYC, Lamborn KR, Chang SM, Butowski N, Clarke JL, Prados M, Grommes C, Oxnard GR, Kris MG, Miller VA, Pao W, Lassman AB, Renfrow J, DeTroye A, Chan M, Tatter S, Ellis T, McMullen K, Johnson A, Mott R, Lesser GJ, Cavaliere R, Abrey LE, Mason WP, Lassman AB, Perentesis J, Ivy P, Villalona M, Nayak L, Fleisher M, Gonzalez-Espinoza R, Reiner A, Panageas K, Lin O, Liu CM, Deangelis LM, Omuro A, Taylor LP, Ammirati M, Lamki T, Zarzour H, Grecula J, Dudley RW, Kavan P, Garoufalis E, Guiot MC, Del Maestro RF, Maurice C, Belanger K, Moumdjian R, Dufresne S, Fortin C, Fortin MA, Berthelet F, Renoult E, Belair M, Rouleau D, Gallego O, Benavides M, Segura PP, Balana C, Gil MJG, Berrocal A, Reynes G, Garcia JL, Mazarico J, Bague S. Medical and Neuro-Oncology. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s6] [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: 11/13/2022] Open
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Clarke JL, Ennis MM, Lamborn KR, Prados MD, Puduvalli VK, Penas-Prado M, Gilbert MR, Groves MD, Hess KR, Levin VA, de Groot J, Colman H, Conrad CA, Loghin ME, Hunter K, Yung WK, Chen C, Damek D, Liu A, Gaspar LE, Waziri A, Lillehei K, Kavanagh B, Finlay JL, Haley K, Dhall G, Gardner S, Allen J, Cornelius A, Olshefski R, Garvin J, Pradhan K, Etzl M, Goldman S, Atlas M, Thompson S, Hirt A, Hukin J, Comito M, Bertolone S, Torkildson J, Joyce M, Moertel C, Letterio J, Kennedy G, Walter A, Ji L, Sposto R, Dorris K, Wagner L, Hummel T, Drissi R, Miles L, Leach J, Chow L, Turner R, Gragert MN, Pruitt D, Sutton M, Breneman J, Crone K, Fouladi M, Friday BB, Buckner J, Anderson SK, Giannini C, Kugler J, Mazurczac M, Flynn P, Gross H, Pajon E, Jaeckle K, Galanis E, Badruddoja MA, Pazzi MA, Stea B, Lefferts P, Contreras N, Bishop M, Seeger J, Carmody R, Rance N, Marsella M, Schroeder K, Sanan A, Swinnen LJ, Rankin C, Rushing EJ, Hutchins LF, Damek DM, Barger GR, Norden AD, Lesser G, Hammond SN, Drappatz J, Fadul CE, Batchelor TT, Quant EC, Beroukhim R, Ciampa A, Doherty L, LaFrankie D, Ruland S, Bochacki C, Phan P, Faroh E, McNamara B, David K, Rosenfeld MR, Wen PY, Hammond SN, Norden AD, Drappatz J, Phuphanich S, Reardon D, Wong ET, Plotkin SR, Lesser G, Mintz A, Raizer JJ, Batchelor TT, Quant EC, Beroukhim R, Kaley TJ, Ciampa A, Doherty L, LaFrankie D, Ruland S, Smith KH, Wen PY, Chamberlain MC, Graham C, Mrugala M, Johnston S, Kreisl TN, Smith P, Iwamoto F, Sul J, Butman JA, Fine HA, Westphal M, Heese O, Warmuth-Metz M, Pietsch T, Schlegel U, Tonn JC, Schramm J, Schackert G, Melms A, Mehdorn HM, Seifert V, Geletneky K, Reuter D, Bach F, Khasraw M, Abrey LE, Lassman AB, Hormigo A, Nolan C, Gavrilovic IT, Mellinghoff IK, Reiner AS, DeAngelis L, Omuro AM, Burzynski SR, Weaver RA, Janicki TJ, Burzynski GS, Szymkowski B, Acelar SS, Mechtler LL, O'Connor PC, Kroon HA, Vora T, Kurkure P, Arora B, Gupta T, Dhamankar V, Banavali S, Moiyadi A, Epari S, Merchant N, Jalali R, Moller S, Grunnet K, Hansen S, Schultz H, Holmberg M, Sorensen MM, Poulsen HS, Lassen U, Reardon DA, Vredenburgh JJ, Desjardins A, Janney DE, Peters K, Sampson J, Gururangan S, Friedman HS, Jeyapalan S, Constantinou M, Evans D, Elinzano H, O'Connor B, Puthawala MY, Goldman M, Oyelese A, Cielo D, Dipetrillo T, Safran H, Anan M, Seyed Sadr M, Alshami J, Sabau C, Seyed Sadr E, Siu V, Guiot MC, Samani A, Del Maestro R, Bogdahn U, Stockhammer G, Mahapatra AK, Venkataramana NK, Oliushine VE, Parfenov VE, Poverennova IE, Hau P, Jachimczak P, Heinrichs H, Schlingensiepen KH, Shibui S, Kayama T, Wakabayashi T, Nishikawa R, de Groot M, Aronica E, Vecht CJ, Toering ST, Heimans JJ, Reijneveld JC, Batchelor T, Mulholland P, Neyns B, Nabors LB, Campone M, Wick A, Mason W, Mikkelsen T, Phuphanich S, Ashby LS, DeGroot JF, Gattamaneni HR, Cher LM, Rosenthal MA, Payer F, Xu J, Liu Q, van den Bent M, Nabors B, Fink K, Mikkelsen T, Chan M, Trusheim J, Raval S, Hicking C, Henslee-Downey J, Picard M, Reardon D, Kaley TJ, Wen PY, Schiff D, Karimi S, DeAngelis LM, Nolan CP, Omuro A, Gavrilovic I, Norden A, Drappatz J, Purow BW, Lieberman FS, Hariharan S, Abrey LE, Lassman AB, Perez-Larraya JG, Honnorat J, Chinot O, Catry-Thomas I, Taillandier L, Guillamo JS, Campello C, Monjour A, Tanguy ML, Delattre JY, Franz DN, Krueger DA, Care MM, Holland-Bouley K, Agricola K, Tudor C, Mangeshkar P, Byars AW, Sahmoud T, Alonso-Basanta M, Lustig RA, Dorsey JF, Lai RK, Recht LD, Reardon DA, Paleologos N, Groves M, Rosenfeld MR, Meech S, Davis T, Pavlov D, Marshall MA, Sampson J, Slot M, Peerdeman SM, Beauchesne PD, Faure G, Noel G, Schmitt T, Kerr C, Jadaud E, Martin L, Taillandier L, Carnin C, Desjardins A, Reardon DA, Peters KB, Herndon JE, Kirkpatrick JP, Friedman HS, Vredenburgh JJ, Nayak L, Panageas KS, Deangelis LM, Abrey LE, Lassman AB. Ongoing Clinical Trials. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s9] [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: 11/14/2022] Open
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Müller-Beißenhirtz P, Ziegler M, zum Winkel K, Beduhn D, Encke A, Pöplau F, Ruland S. Die Sequenzszintigraphie und die Angiographie zur Diagnostik der Abstoßungskrisen von experimentellen Nierentransplantaten. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1228900] [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: 10/20/2022]
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Zhao M, Amin-Hanjani S, Ruland S, Curcio AP, Ostergren L, Charbel FT. Regional cerebral blood flow using quantitative MR angiography. AJNR Am J Neuroradiol 2007; 28:1470-3. [PMID: 17846193 PMCID: PMC8134363 DOI: 10.3174/ajnr.a0582] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [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: 07/24/2006] [Accepted: 01/06/2007] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE We sought to derive regional cerebral blood flow using vessel flows from quantitative MR angiography (qMRA). MATERIALS AND METHODS Flow rates in the 15 major cerebral arteries were measured on retrospectively gated fast 2D phase-contrast MR angiography obtained in 83 healthy adult volunteers (age range, 24-74 years; mean, 42 years). The arterial network of the brain was partitioned into 12 different regions, in which flows were calculated from the measured flows of the 15 cerebral arteries. RESULTS The mean flows of the 15 arteries and the 12 regions were calculated. The mean total cranial flow and the mean total cerebral blood flow were 949 +/- 158 mL/min and 695 +/- 113 mL/min, respectively. The mean regional flows for the anterior and posterior circulation were 483 +/- 87 mL/min and 212 +/- 34 mL/min, respectively. The relative contributions of the flows in the 11 regions to their parent regions were obtained. The mean flows in the individual arteries and the regions with age were also calculated. The mean flows for the female group were significantly lower than those for the male group (P < .001) for the 2 common carotids and the cranial circulation and left/right extracranial circulation. However, the intracranial circulation was not different between sexes. CONCLUSIONS The 12 regions in the cerebral circulation were identified and formed into a partition tree, and the mean regional flow for each region was determined using vessel flows from qMRA.
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Affiliation(s)
- M Zhao
- Department of Neurosurgery, University of Illinois at Chicago, IL 60612-5970, USA.
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Farkouh ME, Greenberg JD, Jeger RV, Ramanathan K, Verheugt FWA, Chesebro JH, Kirshner H, Hochman JS, Lay CL, Ruland S, Mellein B, Matchaba PT, Fuster V, Abramson SB. Cardiovascular outcomes in high risk patients with osteoarthritis treated with ibuprofen, naproxen or lumiracoxib. Ann Rheum Dis 2007; 66:764-70. [PMID: 17412741 PMCID: PMC1954641 DOI: 10.1136/ard.2006.066001] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Evidence suggests that both selective cyclooxygenase (COX)-2 inhibitors and non-selective non-steroidal anti-inflammatory drugs (NSAIDs) increase the risk of cardiovascular events. However, evidence from prospective studies of currently available COX-2 inhibitors and non-selective NSAIDs is lacking in patients at high cardiovascular risk who are taking aspirin. OBJECTIVE To determine the cardiovascular outcomes in high risk patients with osteoarthritis treated with ibuprofen, naproxen or lumiracoxib. METHODS The Therapeutic Arthritis Research and Gastrointestinal Event Trial (TARGET) of 18 325 patients with osteoarthritis comprised two parallel substudies, comparing lumiracoxib (COX-2 inhibitor) with either ibuprofen or naproxen. A post hoc analysis by baseline cardiovascular risk, treatment assignment, and low-dose aspirin use was performed. The primary composite end point was cardiovascular mortality, non-fatal myocardial infarction, and stroke at 1 year; a secondary end point was the development of congestive heart failure (CHF). RESULTS In high risk patients among aspirin users, patients in the ibuprofen substudy had more primary events with ibuprofen than lumiracoxib (2.14% vs 0.25%, p = 0.038), whereas in the naproxen substudy rates were similar for naproxen and lumiracoxib (1.58% vs 1.48%, p = 0.899). High risk patients not taking aspirin had fewer primary events with naproxen than with lumiracoxib (0% vs 1.57%, p = 0.027), but not for ibuprofen versus lumiracoxib (0.92% vs 0.80%, p = 0.920). Overall, CHF developed more often with ibuprofen than lumiracoxib (1.28% vs 0.14%; p = 0.031), whereas no difference existed between naproxen and lumiracoxib. CONCLUSIONS These data suggest that ibuprofen may confer an increased risk of thrombotic and CHF events relative to lumiracoxib among aspirin users at high cardiovascular risk. The study indicates that naproxen may be associated with lower risk relative to lumiracoxib among non-aspirin users. This study is subject to inherent limitations, and therefore should be interpreted as a hypothesis-generating study.
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Affiliation(s)
- M E Farkouh
- Mount Sinai Cardiovascular Institute, Mount Sinai School of Medicine, One Gustave L Levy Place, Box 1074, New York, NY 10029, USA.
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Ruland S, Richardson D, Hung E, Brorson JR, Cruz-Flores S, Felton WL, Ford-Lynch G, Helgason C, Hsu C, Kramer J, Mitsias P, Gorelick PB. Predictors of recurrent stroke in African Americans. Neurology 2006; 67:567-71. [PMID: 16924005 DOI: 10.1212/01.wnl.0000232738.02278.28] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [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: 11/15/2022] Open
Abstract
BACKGROUND Stroke incidence and mortality are disproportionately higher among African Americans than among whites. OBJECTIVE To describe the recurrent stroke characteristics and determine the predictability of known vascular risk factors for stroke recurrence in African Americans. METHODS The authors followed 1,809 African Americans in the African-American Antiplatelet Stroke Prevention Study with recent noncardioembolic ischemic stroke for recurrent stroke, recurrent stroke subtype, and disability. RESULTS Of the subjects, 10.6% experienced a recurrent stroke during follow-up. The mean interval between eligibility and recurrent stroke was 325 days (median 287 days, SD = 224 days). Stroke recurrence resulted in an average 1.5-point increase in the National Institute of Health Stroke Scale (p < 0.001) and a 3.5-point decrease in modified Barthel Index (p < 0.001). Of previously nondisabled subjects, 48% became disabled or died after stroke recurrence (p < 0.0001). Longitudinal analysis resulted in a hazard for recurrent stroke for each 10-mm Hg increase in systolic blood pressure of 1.103 (95% CI: 1.031 to 1.179, p = 0.004), pulse pressure 1.123 (95% CI: 1.041 to 1.213, p = 0.003), and mean arterial pressure 1.123 (95% CI: 1.001 to 1.260, p = 0.048). Multivariate analysis revealed increases in the recurrent stroke hazard for increases in baseline Glasgow Outcome Score (1.449, 95% CI: 1.071 to 1.961, p = 0.016) and increases in longitudinal pulse pressure (1.009, 95% CI: 1.001 to 1.017, p = 0.029). CONCLUSION Recurrent stroke leads to disability and disability predicts recurrent stroke. Hypertension is the most predictive modifiable stroke risk factor.
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Affiliation(s)
- S Ruland
- Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL 60612, USA.
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Ruland S, Raman R, Chaturvedi S, Leurgans S, Gorelick PB. Awareness, treatment, and control of vascular risk factors in African Americans with stroke. Neurology 2003; 60:64-8. [PMID: 12525719 DOI: 10.1212/wnl.60.1.64] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [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: 11/15/2022] Open
Abstract
OBJECTIVE To investigate control of risk factors in African American patients with previous stroke. METHODS The baseline history, physical examination, and laboratory data for 1,086 subjects enrolled in the African American Antiplatelet Stroke Prevention Study from 1995 to 1999 were studied. The level of awareness, pharmacologic treatment, and control of diabetes mellitus (casual plasma glucose level > or =200 mg/dL), hypertension (blood pressure > or =140/90 mm Hg), and hypercholesterolemia (serum total cholesterol level > or =240 mg/dL) were determined. RESULTS Forty percent of subjects reported a history of diabetes mellitus or use of diabetic medication, and 2% of the remaining subjects had a serum glucose level of > or =200 mg/dL. Of those subjects known to be diabetic, 33% had a serum glucose level of > or =200 mg/dL. A history of hypertension or use of antihypertensive medication was reported in 87% of subjects, and 48% of the remaining subjects were found to have a blood pressure of > or =140/90 mm Hg on exam. Of those subjects known to be hypertensive by history, 73% were on antihypertensive medication, but only 30% of the treated subjects had a blood pressure under 140/90 mm Hg. A history of hypercholesterolemia or use of a lipid-lowering agent was reported in 40% of subjects, and 24% of the remaining subjects had a cholesterol level of > or =240 mg/dL. Use of a lipid-lowering agent was reported in 43% of subjects known to be hypercholesterolemic, and 38% of the hypercholesterolemic subjects had a cholesterol level of > or =240 mg/dL. CONCLUSION Inadequate rates of awareness and control of cardiovascular disease and stroke risk factors are seen in a clinical trial of African American stroke patients and are comparable with those of previously published reports.
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Affiliation(s)
- S Ruland
- Department of Neurology, Rush University, Chicago, IL 60612, USA.
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McGaughy J, Sandstrom M, Ruland S, Bruno JP, Sarter M. Lack of effects of lesions of the dorsal noradrenergic bundle on behavioral vigilance. Behav Neurosci 1997. [PMID: 9189279 DOI: 10.1037//0735-7044.111.3.646] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The effects of 6-hydroxydopamine (6-OHDA)-induced lesions of the dorsal noradrenergic bundle (DNB) were assessed in animals trained in a task designed to measure sustained attention, or vigilance. Infusions of 6-OHDA reduced frontal cortical noradrenaline contents but did not significantly affect striatal and hypothalamic noradrenaline contents. The performance of lesioned animals did not differ significantly from sham-lesioned controls. The performance of both the lesioned and sham-lesioned animals was impaired by the presentation of a visual distractor and by a decrease in the probability for a signal. The results from this study largely coincide with the results from previous studies on the effects of noradrenergic lesions on various aspects of attention. In contrast to the attentional functions assessed in this experiment, the ability to detect and select stimuli that are associated with activation of sympathetic functions is hypothesized to be sensitive to the effects of DNB lesions.
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Affiliation(s)
- J McGaughy
- Department of Psychology, Ohio State University, Columbus 43210, USA
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Abstract
The effects of 6-hydroxydopamine (6-OHDA)-induced lesions of the dorsal noradrenergic bundle (DNB) were assessed in animals trained in a task designed to measure sustained attention, or vigilance. Infusions of 6-OHDA reduced frontal cortical noradrenaline contents but did not significantly affect striatal and hypothalamic noradrenaline contents. The performance of lesioned animals did not differ significantly from sham-lesioned controls. The performance of both the lesioned and sham-lesioned animals was impaired by the presentation of a visual distractor and by a decrease in the probability for a signal. The results from this study largely coincide with the results from previous studies on the effects of noradrenergic lesions on various aspects of attention. In contrast to the attentional functions assessed in this experiment, the ability to detect and select stimuli that are associated with activation of sympathetic functions is hypothesized to be sensitive to the effects of DNB lesions.
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Affiliation(s)
- J McGaughy
- Department of Psychology, Ohio State University, Columbus 43210, USA
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Farese RV, Véniant MM, Cham CM, Flynn LM, Pierotti V, Loring JF, Traber M, Ruland S, Stokowski RS, Huszar D, Young SG. Phenotypic analysis of mice expressing exclusively apolipoprotein B48 or apolipoprotein B100. Proc Natl Acad Sci U S A 1996; 93:6393-8. [PMID: 8692825 PMCID: PMC39033 DOI: 10.1073/pnas.93.13.6393] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.0] [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: 02/01/2023] Open
Abstract
Apolipoprotein (apo)-B is found in two forms in mammals: apo-B100, which is made in the liver and the yolk sac, and apo-B48, a truncated protein made in the intestine. To provide models for understanding the physiologic purpose for the two forms of apo-B, we used targeted mutagenesis of the apo-B gene to generate mice that synthesize exclusively apo-B48 (apo-B48-only mice) and mice that synthesize exclusively apo-B100 (apo-B100-only mice). Both the apo-B48-only mice and apo-B100-only mice developed normally, were healthy, and were fertile. Thus, apo-B48 synthesis was sufficient for normal embryonic development, and the synthesis of apo-B100 in the intestines of adult mice caused no readily apparent adverse effects on intestinal function or nutrition. Compared with wild-type mice fed a chow diet, the levels of low density lipoprotein (LDL)-cholesterol and very low density lipoprotein- and LDL-triacylglycerols were lower in apo-B48-only mice and higher in the apo-B100-only mice. In the setting of apo-E-deficiency, the apo-B100-only mutation lowered cholesterol levels, consistent with the fact that apo-B100-lipoproteins can be cleared from the plasma via the LDL receptor, whereas apo-B48-lipoproteins lacking apo-E cannot. The apo-B48-only and apo-B100-only mice should prove to be valuable models for experiments designed to understand the purpose for the two forms of apo-B in mammalian metabolism.
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Affiliation(s)
- R V Farese
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94141-9100, USA
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Berntson GG, Hart S, Ruland S, Sarter M. A central cholinergic link in the cardiovascular effects of the benzodiazepine receptor partial inverse agonist FG 7142. Behav Brain Res 1996; 74:91-103. [PMID: 8851918 DOI: 10.1016/0166-4328(95)00166-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [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: 02/02/2023]
Abstract
Previous work demonstrated that systemic administration of the benzodiazepine receptor (BZR) partial inverse agonist beta-carboline FG 7142 (FG) augments the cardiovascular response to non-signal stimuli, similar to the effects of an aversive context. Analysis of the parasympathetic and sympathetic contributions to the effects of FG prompted the hypothesis that increases in central cholinergic activity mediates the potentiation of the cardioacceleratory response by FG. Consistent with this hypothesis, the present experiments demonstrate: (a) intracerebroventricular (ICV) infusion of the cholinergic receptor agonist carbachol mimics the response-potentiating effects of FG; (b) this effect of carbachol was blocked by ICV co-administration of the muscarinic antagonist atropine; (c) ICV infusions of atropine blocked the potentiation of the cardioacceleratory response by systemically administered FG, but did not alter the basal response to the stimulus; and (d) 192 IgG-saporin-induced lesions of basal forebrain cholinergic neurons prevented the FG-induced potentiation of the cardioacceleratory response, again without altering the basal cardiac response. These data strongly support the hypothesis that the effects of FG on cardiac reactivity are mediated via an activation of central muscarinic cholinergic mechanisms.
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Affiliation(s)
- G G Berntson
- Department of Psychology and Neuroscience Program, Ohio State University, Columbus 43210, USA
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Berntson G, Sarter M, Ruland S, Hart S, Ronis V. Benzodiazepine receptor agonists and inverse agonists yield concordant rather than opposing effects on startle responses. J Psychopharmacol 1996; 10:309-12. [PMID: 22302979 DOI: 10.1177/026988119601000409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Benzodiazepine receptor agonists and inverse agonists exert generally opposite actions at both the cellular and behavioural levels. The present study, however, reveals that both the benzodiazepine receptor agonist, chlordiazepoxide and the partial inverse agonist, FG7142, yield a dose-dependent (2-16 mg/kg, i.p) reduction in the amplitude of the acoustic startle response in the rat. The similarity in drug effects on startle was not attributable to congruent effects on basal somatic activity, as chlordiazepoxide resulted in a dose-dependent decrease in activity whereas FG7142 was associated with a small but non-significant increase in activity. As these results contrast with the bidirectional actions of benzodiazepine receptor agonists and inverse agonists in behavioural tests of fear or anxiety, the neuronal mechanisms mediating the effects of benzodiazepine receptor ligands on the acoustic startle response may be distinct from those that underlie the specific fear- attenuating and potentiating actions, respectively, of benzodiazepine receptor agonists and inverse agonists.
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Affiliation(s)
- G Berntson
- Department of Psychology and Neuroscience Program, The Ohio State University, 48 Townshend Hall, Columbus, OH 43210, USA
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Müller-Beissenhirtz P, Ziegler M, Beduhn D, Encke A, Pöplau F, Ruland S. [Sequential scintigraphy and angiography in the diagnosis of rejection crises in experimental kidney transplantations]. Fortschr Geb Rontgenstr Nuklearmed 1970; 113:148-57. [PMID: 4927706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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