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Ghia P, Pluta A, Wach M, Lysak D, Kozak T, Simkovic M, Kaplan P, Kraychok I, Illes A, De La Serna J, Dolan S, Campbell P, Musuraca G, Jacob A, Avery E, Lee J, Chen T, Liang W, Patel P, Jurczak W. Acalabrutinib vs Rituximab Plus Idelalisib (IdR) or Bendamustine (BR) by Investigator Choice in Relapsed/Refractory (RR) Chronic Lymphocytic Leukemia: Phase 3 ASCEND Study. Hematol Oncol 2019. [DOI: 10.1002/hon.54_2629] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- P. Ghia
- Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele; Milano Italy
| | - A. Pluta
- Department of Hematological Oncology; Oncology Specialist Hospital; Brzozow Poland
| | - M. Wach
- Department of Hemato-Oncology and Bone Marrow Transplantation; Medical University of Lublin; Lublin Poland
| | - D. Lysak
- Fakultní Nemocnice Plzeň; Pilsen Czech Republic
| | - T. Kozak
- Fakultní Nemocnice Královske Vinohrady; Prague Czech Republic
| | - M. Simkovic
- University Hospital Hradec Kralove; Charles University; Hradec Kralove Czech Republic
| | - P. Kaplan
- Dnipropetrovsk City Clinical Hospital No. 4; Dnipropetrovsk Ukraine
| | | | - A. Illes
- University of Debrecen, Faculty of Medicine; Department of Hematology; Hungary
| | | | - S. Dolan
- Saint John Regional Hospital; University of New Brunswick; New Brunswick Canada
| | - P. Campbell
- Barwon Health; University Hospital Geelong; Geelong Victoria Australia
| | - G. Musuraca
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori; Meldola Italy
| | - A. Jacob
- The Royal Wolverhampton NHS Trust; Wolverhampton United Kingdom
| | - E.J. Avery
- Nebraska Hematology Oncology; Lincoln NE
| | - J.H. Lee
- Gachon University Gil Medical Center; Incheon South Korea
| | - T. Chen
- Acerta Pharma; South San Francisco CA USA
| | - W. Liang
- Acerta Pharma; South San Francisco CA USA
| | - P. Patel
- Acerta Pharma; South San Francisco CA USA
| | - W. Jurczak
- Department of Hematology; Jagiellonian University Medical College; Krakow Poland
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Schmitt F, Aurlien H, Brøgger J, Hirsch L, Schomer D, Trinka E, Pressler R, Wennberg R, Visser G, Eisermann M, Diehl B, Lesser R, Kaplan P, The Tich S, Lee J, Martins-da-Silva A, Stefan H, Neufeld M, Rubboli G, Fabricius M, Gardella E, Terney D, Meritam P, Eichele T, Asano E, Cox F, van Emde Boas W, Mameniskiene R, Marusic P, Zárubová J, Rosén I, Fuglsang-Frederiksen A, Ikeda A, MacDonald D, Terada K, Ugawa Y, Zhou D, Herman S, Beniczky S. Standardisierter Computer-basiert-organisierter Report des EEG (SCORE) – Eine strukturierende Form der EEG-Befundung. KLIN NEUROPHYSIOL 2018. [DOI: 10.1055/s-0043-125304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
ZusammenfassungEine 2013 von der „International Federation of Clinical Neurophysiology“ gegründete Taskforce hat eine international konsensfähige EEG-Terminologie entwickelt. Im Folgenden soll das Resultat – die 2. Version des Standardized Computer-based Organized Reporting of EEG (SCORE) - vorgestellt werden. Die Terminologie wurde im Rahmen eines Softwarepaketes (SCORE-EEG) in der klinischen Praxis an über 12.000 EEGs getestet. Die Auswahl der Begriffe ist kontextabhängig: die initiale Auswahl bestimmt, welche weiteren Auswahlmöglichkeiten zur Verfügung stehen. Im Verlauf wird automatisch ein Befund erstellt und dessen Einzelmerkmale in eine Datenbank eingespeist. SCORE verfügt über Module spezifisch für die Befundung epileptischer Anfälle, sowie charakteristischer neonataler und intensivmedizinische EEG-Merkmale. SCORE ist nicht nur ein nützliches Werkzeug im ambulanten, klinischen und wissenschaftlichen Setting, es erleichtert auch Qualitätssicherung, Datenaustausch und die EEG-Aus und Weiterbildung.
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Affiliation(s)
- F Schmitt
- Universitätsklinik für Neurologie, Otto-von-Guericke Universität, Magdeburg, Deutschland
| | - H Aurlien
- Department of Neurology, Haukeland University Hospital and Department of Clinical Medicine, University of Bergen, Bergen, Norwegen
| | - J Brøgger
- Department of Neurology, Haukeland University Hospital and Department of Clinical Medicine, University of Bergen, Bergen, Norwegen
| | - L Hirsch
- Comprehensive Epilepsy Center, Yale University School of Medicine, New Haven, CT, USA
| | - D Schomer
- Department of Neurology, Laboratory of Clinical Neurophysiology, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA, USA
| | - E Trinka
- Universitätskliniklinik für Neurologie, Christian Doppler Klinik, Paracelsus Medizinische Universität und Zentrum für Kognitive Neurowissenschaften Salzburg, Österreich und Institut für Public Health, Versorgungsforschung & HTA, UMIT, Hall in Tirol, Österreich
| | - R Pressler
- Department of Clinical Neurophysiology, Great Ormond Street Hospital und Clinical Neuroscience, UCL Great Ormond Street Institute of Child Health, London, Großbritannien
| | - R Wennberg
- Krembil Neuroscience Centre, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Kanada
| | - G Visser
- Department of Clinical Neurophysiology, Stichting Epilepsie Instellingen Nederland (SEIN), Niederlande
| | - M Eisermann
- Department of Clinical Neurophysiology, Necker Enfants Malades Hospital, Paris, Frankreich und INSERM U1129, Paris, France, Paris Descartes University, CEA, Gif sur Yvette, Paris, Frankreich
| | - B Diehl
- University College London, Department of Clinical and Experimental Epilepsy, Queen Square, London, Großbritannien
| | - R Lesser
- Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - P Kaplan
- Johns Hopkins University School of Medicine, Baltimore, Maryland, MD, USA
| | - S The Tich
- Department of Pediatric Neurology, University Hospital of Lille, Lille, Frankreich
| | - J Lee
- Department of Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - A Martins-da-Silva
- Department of Neurophysiology, Hospital Santo António and UMIB/ICBAS – University of Porto, Porto, Portugal
| | - H Stefan
- Abteilung für Neurologie und Biomagnetismus, Universitätsklinikum Erlangen, Deutschland
| | - M Neufeld
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - G Rubboli
- Department of Neurology, Danish Epilepsy Center, Dianalund and University of Copenhagen, Kopenhagen, Dänemark
| | - M Fabricius
- Department of Clinical Neurophysiology, Rigshospitalet, Kopenhagen, Dänemark
| | - E Gardella
- University of Southern Denmark, Odense, Dänemark
- Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Dänemark
| | - D Terney
- Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Dänemark
| | - P Meritam
- Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Dänemark
| | - T Eichele
- Department of Neurology, Haukeland University Hospital and Department of Biological and Medical Psychology, University of Bergen, Norwegen
| | - E Asano
- Departments of Pediatrics and Neurology, Children’s Hospital of Michigan, Wayne State University, Detroit, Michigan, US
| | - F Cox
- Department of Clinical Neurophysiology, Stichting Epilepsie Instellingen Nederland (SEIN), Niederlande
| | - W van Emde Boas
- Department of Clinical Neurophysiology, Stichting Epilepsie Instellingen Nederland (SEIN), Niederlande
| | - R Mameniskiene
- Department of Neurology and Neurosurgery, Center for Neurology, Vilnius University, Vilnius, Litauen
| | - P Marusic
- Department of Neurology, Charles University, 2nd Faculty of Medicine, Motol University Hospital, Tschechische Republik
| | - J Zárubová
- Department of Neurology, Charles University, 2nd Faculty of Medicine, Motol University Hospital, Tschechische Republik
| | - I Rosén
- Department of Clinical Sciences, University of Lund, Lund, Schweden
| | | | - A Ikeda
- Department of Epilepsy, Movement Disorders and Physiology Kyoto University Graduate School of Medicine Shogoin, Sakyo-ku Kyoto, Japan
| | - D MacDonald
- Department of Neurosciences, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabien
| | - K Terada
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan
| | - Y Ugawa
- Department of Neurology, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - D Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - S Herman
- Department of Neurology, Laboratory of Clinical Neurophysiology, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA, USA
| | - S Beniczky
- Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Dänemark
- Department of Clinical Neurophysiology, Aarhus University, Aarhus, Dänemark
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Griecsová L, Farkašová V, Gáblovský I, Khandelwal VKM, Bernátová I, Tatarková Z, Kaplan P, Ravingerová T. Effect of maturation on the resistance of rat hearts against ischemia. Study of potential molecular mechanisms. Physiol Res 2015; 64:S685-96. [PMID: 26674286 DOI: 10.33549/physiolres.933222] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Reduced tolerance to ischemia/reperfusion (IR) injury has been shown in elder human and animal hearts, however, the onset of this unfavorable phenotype and cellular mechanisms behind remain unknown. Moreover, aging may interfere with the mechanisms of innate cardioprotection (preconditioning, PC) and cause defects in protective cell signaling. We studied the changes in myocardial function and response to ischemia, as well as selected proteins involved in "pro-survival" pathways in the hearts from juvenile (1.5 months), younger adult (3 months) and mature adult (6 months) male Wistar rats. In Langendorff-perfused hearts exposed to 30-min ischemia/2-h reperfusion with or without prior PC (one cycle of 5-min ischemia/5-min reperfusion), we measured occurrence of reperfusion-induced arrhythmias, recovery of contractile function (left ventricular developed pressure, LVDP, in % of pre-ischemic values), and size of infarction (IS, in % of area at risk size, TTC staining and computerized planimetry). In parallel groups, LV tissue was sampled for the detection of protein levels (WB) of Akt kinase (an effector of PI3-kinase), phosphorylated (activated) Akt (p-Akt), its target endothelial NO synthase (eNOS) and protein kinase Cepsilon (PKCepsilon) as components of "pro-survival" cascades. Maturation did not affect heart function, however, it impaired cardiac response to lethal IR injury (increased IS) and promoted arrhythmogenesis. PC reduced the occurrence of malignant arrhythmias, IS and improved LVDP recovery in the younger animals, while its efficacy was attenuated in the mature adults. Loss of PC protection was associated with age-dependent reduced Akt phosphorylation and levels of eNOS and PKCepsilon in the hearts of mature animals compared with the younger ones, as well as with a failure of PC to upregulate these proteins. Aging-related alterations in myocardial response to ischemia may be caused by dysfunction of proteins involved in protective cell signaling that may occur already during the process of maturation.
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Affiliation(s)
- L Griecsová
- Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Dokus K, Hatok J, Babusikova E, Kaplan P, Zubor P, Danko J. W322 OXIDATIVE STRESS AND ANTIOXIDANT PLASMA ACTIVITY DURING PHYSIOLOGIC LABOR. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)62045-1] [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: 10/27/2022]
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Garone C, Calvo S, Emmanuele V, Akman OH, Kaplan P, Krishna S, Mootha V, DiMauro S, Hirano M. MitoExome Sequencing Reveals a Mutation in the Mitochondrial MRPL51 Gene Causing Infantile Encephalopathy (P05.139). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.139] [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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Tatarkova Z, Kuka S, Petráš M, Račay P, Lehotský J, Dobrota D, Kaplan P. Why mitochondria are excellent targets for cancer therapy. Klin Onkol 2012; 25:421-426. [PMID: 23301643] [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: 06/01/2023]
Abstract
New insights into cancer cells - specific biological pathways are urgently needed to promote development of exactly targeted therapeutics. The role of oncoproteins and tumor suppressor proteins in proliferative signaling, cell cycle regulation and altered adhesion is well established. Chemicals, viruses and radiation are also generally accepted as agents that commonly induce mutations in genes encoding these cancer-inducing proteins, thereby giving rise to cancer. More recent evidence indicates the importance of two additional key factors imposed on proliferating cells - hypoxia and/or lack of glucose. These two additional triggers can initiate and promote the process of malignant transformation, when a low percentage of cells escape cellular senescence. Disregulated cell proliferation leads to formation of cellular masses that extend beyond the resting vasculature, resulting in oxygen and nutrient deprivation. Resulting hypoxia triggers a number of critical adaptations that enable cancer cell survival. The process of apoptosis is suppressed and glucose metabolism is altered. Recent investigations suggest that oxygen depletion stimulates mitochondria to compensate increased reactive oxygen species (ROS). It activates signaling pathways, such as hypoxia-inducible factor 1, that promote cancer cell survival and tumor growth. During the last decade, mitochondria have become key organelles involved in chemotherapy-induced apoptosis. Therefore, the relationship between mitochondria, ROS signaling and activation of survival pathways under hypoxic conditions has been the subject of increased study. Insights into mechanisms involved in ROS signaling may offer novel ways to facilitate discovery of cancer-specific therapies.
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Affiliation(s)
- Z Tatarkova
- Department of Medical Biochemistry, Comenius University, Martin, Slovak Republic.
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7
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Prust M, Wang J, Morizono H, Messing A, Brenner M, Gordon E, Hartka T, Sokohl A, Schiffmann R, Gordish-Dressman H, Albin R, Amartino H, Brockman K, Dinopoulos A, Dotti MT, Fain D, Fernandez R, Ferreira J, Fleming J, Gill D, Griebel M, Heilstedt H, Kaplan P, Lewis D, Nakagawa M, Pedersen R, Reddy A, Sawaishi Y, Schneider M, Sherr E, Takiyama Y, Wakabayashi K, Gorospe JR, Vanderver A. GFAP mutations, age at onset, and clinical subtypes in Alexander disease. Neurology 2011; 77:1287-94. [PMID: 21917775 PMCID: PMC3179649 DOI: 10.1212/wnl.0b013e3182309f72] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [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] [Received: 11/15/2010] [Accepted: 06/14/2011] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE To characterize Alexander disease (AxD) phenotypes and determine correlations with age at onset (AAO) and genetic mutation. AxD is an astrogliopathy usually characterized on MRI by leukodystrophy and caused by glial fibrillary acidic protein (GFAP) mutations. METHODS We present 30 new cases of AxD and reviewed 185 previously reported cases. We conducted Wilcoxon rank sum tests to identify variables scaling with AAO, survival analysis to identify predictors of mortality, and χ(2) tests to assess the effects of common GFAP mutations. Finally, we performed latent class analysis (LCA) to statistically define AxD subtypes. RESULTS LCA identified 2 classes of AxD. Type I is characterized by early onset, seizures, macrocephaly, motor delay, encephalopathy, failure to thrive, paroxysmal deterioration, and typical MRI features. Type II is characterized by later onset, autonomic dysfunction, ocular movement abnormalities, bulbar symptoms, and atypical MRI features. Survival analysis predicted a nearly 2-fold increase in mortality among patients with type I AxD relative to those with type II. R79 and R239 GFAP mutations were most common (16.6% and 20.3% of all cases, respectively). These common mutations predicted distinct clinical outcomes, with R239 predicting the most aggressive course. CONCLUSIONS AAO and the GFAP mutation site are important clinical predictors in AxD, with clear correlations to defined patterns of phenotypic expression. We propose revised AxD subtypes, type I and type II, based on analysis of statistically defined patient groups.
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Affiliation(s)
- M Prust
- Children's National Medical Center, 111 Michigan Ave. NW, Washington, DC 20010, USA
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8
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Miner J, Smith M, Martini E, Brunt V, Kaplan P, Halliwill J, Minson C. Progesterone Administration Antagonizes the Effect of Estradiol on Endothelium-Dependent Vasodilation and Cardiovagal Baroreflex Sensitivity in Young Healthy Women. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.01.031] [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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Kishnani PS, DiRocco M, Kaplan P, Mehta A, Pastores GM, Smith SE, Puga AC, Lemay RM, Weinreb NJ. A randomized trial comparing the efficacy and safety of imiglucerase (Cerezyme) infusions every 4 weeks versus every 2 weeks in the maintenance therapy of adult patients with Gaucher disease type 1. Mol Genet Metab 2009; 96:164-70. [PMID: 19195916 DOI: 10.1016/j.ymgme.2008.12.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2008] [Revised: 12/22/2008] [Accepted: 12/23/2008] [Indexed: 01/22/2023]
Abstract
Imiglucerase (Cerezyme) has been the standard of care for treatment of Gaucher disease, a lysosomal storage disorder resulting from deficiency of glucocerebrosidase, since its approval in 1994. Infusions are typically given once every 2 weeks. However, many patients have expressed a desire for less frequent infusions as a matter of convenience. This clinical study assessed the safety and efficacy of intravenous imiglucerase infused once every 4 weeks (Q4) compared to once every 2 weeks (Q2) at the same total monthly dose in adult patients with clinically stable Gaucher disease type 1 (GD1). This was a 24-month, open-label, randomized, Phase 4, dose-frequency study conducted in 25 centers worldwide. Patients receiving imiglucerase were randomized to receive their monthly dose biweekly (n=33) or every 4 weeks (n=62). Changes from baseline in hemoglobin, platelets, liver and spleen volumes, bone crisis, and bone disease comprised a predefined composite endpoint; achievement or maintenance of established Gaucher disease therapeutic goals comprised a secondary endpoint. Sixty-three percent of Q4- and 81% of Q2-treated patients met the composite endpoint at Month 24; 89% of Q4- and 100% of Q2-treated patients met the therapeutic goals-based endpoint. The frequency of related adverse events was comparable between treatment groups. This study suggests that with comprehensive monitoring, a Q4 imiglucerase infusion regimen may be a safe and effective treatment option for the majority of clinically stable adult patients with GD1 but may not be appropriate for all GD1 patients. Continued monitoring in patients treated with Q4 dosing is required to assess long-term effectiveness.
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Affiliation(s)
- P S Kishnani
- Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Box 103856 DUMC, 595 LaSalle St., GSRB1, 4th Floor, Durham, NC 27710, USA.
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10
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Pavlíková M, Tatarková Z, Sivonová M, Kaplan P, Krizanová O, Lehotský J. Alterations induced by ischemic preconditioning on secretory pathways Ca2+-ATPase (SPCA) gene expression and oxidative damage after global cerebral ischemia/reperfusion in rats. Cell Mol Neurobiol 2009; 29:909-16. [PMID: 19288187 DOI: 10.1007/s10571-009-9374-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Accepted: 02/19/2009] [Indexed: 11/30/2022]
Abstract
Ischemic preconditioning (IPC) represents the phenomenon of CNC adaptation, which results in increased tolerance of CNS to lethal ischemia. Brain ischemia/reperfusion (IRI) initiates a catastrophic cascade in which many subcellular organelles play an important role. The Golgi apparatus, which is a part of secretory pathways (SP), represents the Ca(2+) store and regulates secretion of proteins for growth/reorganization of neuronal circuit by secretory Ca(2+)ATPases (SPCA1). The purpose of this study is to evaluate the effect of IRI and preconditioning on SPCA1 gene expression and oxidative damage after 4-vessel occlusion for 15 min and after being exposed to different reperfusion periods. Rats were preconditioned by 5 min of sub-lethal ischemia and 2 days later, 15 min of lethal ischemia was induced. Our experiments conclusively showed IRI-induced depression of SPCA activity and lipo- and protein oxidation in rat hippocampal membranes. IRI also activates the induction of SPCA1 gene expression in later reperfusion periods. IPC partially suppresses lipo- and protein oxidation in hippocampal membranes and leads to partiall rovery of the ischemic-induced depression of SPCA activity. In addition, IPC initiates earlier cellular response to the injury by the significant elevation of mRNA expression to 142% comparing to 1 h of corresponding reperfusion and to 11% comparing to 24 h of corresponding reperfusion, respectively. Similar patterns were observed on the translational level by Western blot analysis. Our results indicate the specific SPCA1 expression pattern in ischemic hippocampus. It also shows that the SPCA expression and the post-translational changes induced by ischemia are modulated by the IPC. This might serve to understand the molecular mechanisms involved in the structural integrity and function of the SP after ischemic challenge. It also suggests that there is a correlation of SPCA function with the role of SP in the response to pre-ischemic challenge.
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Affiliation(s)
- M Pavlíková
- Department of Medical Biochemistry, Jessenius Faculty of Medicine, Comenius University, 036 01 Martin, Slovak Republic
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11
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Babusikova E, Jesenak M, Racay P, Dobrota D, Kaplan P. Oxidative alternations in rat heart homogenate and mitochondria during ageing. Gen Physiol Biophys 2008; 27:115-120. [PMID: 18645226] [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: 05/26/2023]
Abstract
Our understanding of the role played by reactive oxygen and nitrogen species in disease pathology and ageing is still insufficient. Reactive oxygen species and reactive nitrogen species can initiate protein and lipid oxidative damage that may be the most important contribution to ageing and age-related heart diseases. In the present study, we investigated the effect of ageing on oxidative damage of protein amino acid residues and lipids in heart homogenate and mitochondria of 4- and 26-month-old Wistar rats. Levels of dityrosine and levels of lysine conjugates increased in heart homogenate during ageing, although levels of conjugated dienes did not change. We observed significantly oxidative modification of tryptophan in heart mitochondria and increased levels of dityrosine with advancing age. However, levels of lysine conjugates, conjugated dienes as well as relative level of cytochrome c oxidase were unchanged in heart mitochondria during ageing. The results of this study suggest a different mechanism of oxidative modification in heart compartments during ageing and moreover, mitochondria and other cellular compartments are targets for oxidative modifications.
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Affiliation(s)
- E Babusikova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Malá Hora 4, 036 01 Martin, Slovakia.
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12
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Sims KB, Pastores GM, Weinreb NJ, Barranger J, Rosenbloom BE, Packman S, Kaplan P, Mankin H, Xavier R, Angell J, Fitzpatrick MA, Rosenthal D. Improvement of bone disease by imiglucerase (Cerezyme) therapy in patients with skeletal manifestations of type 1 Gaucher disease: results of a 48-month longitudinal cohort study. Clin Genet 2008; 73:430-40. [PMID: 18312448 PMCID: PMC2440418 DOI: 10.1111/j.1399-0004.2008.00978.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Sims KB, Pastores GM, Weinreb NJ, Barranger J, Rosenbloom BE, Packman S, Kaplan P, Mankin H, Xavier R, Angell J, Fitzpatrick MA, Rosenthal D. Improvement of bone disease by imiglucerase (Cerezyme) therapy in patients with skeletal manifestations of type 1 Gaucher disease: results of a 48-month longitudinal cohort study. Clin Genet 2008: 73: 430–440. © Blackwell Munksgaard, 2008 Progressive skeletal disease accounts for some of the most debilitating complications of type 1 Gaucher disease. In this 48-month, prospective, non-randomized, open-label study of the effect of enzyme replacement therapy on bone response, 33 imiglucerase-naïve patients (median age 43 years with one or more skeletal manifestations such as osteopenia, history of bone crisis, or other documented bone pathology) received imiglucerase 60 U/kg/2 weeks. Substantial improvements were observed in bone pain (BP), bone crises (BC), and bone mineral density (BMD). Improvements in BP were observed at 3 months (p < 0.001 vs baseline) and continued progressively throughout the study, with 39% of patients reporting pain at 48 months vs 73% at baseline. Eleven of the 13 patients with a pre-treatment history of BC had no recurrences. Biochemical markers for bone formation increased; markers for bone resorption decreased. Steady improvement of spine and femoral neck BMD, measured using dual-energy X-ray absorptiometry was noted. Mean Z score for spine increased from −0.72 ± 1.302 at baseline to near-normal levels (−0.09 ± 1.503) by month 48 (p = 0.042) and for femoral neck from −0.59 ± 1.352 to −0.17 ± 1.206 (p = 0.035) at month 36. This increase was sustained at 48 months. With imiglucerase treatment, patients should anticipate resolution of BC, rapid improvement in BP, increases in BMD, and decreased skeletal complications.
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Affiliation(s)
- K B Sims
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA.
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Racay P, Tatarková Z, Drgová A, Kaplan P, Dobrota D. Ischemia-reperfusion induces inhibition of mitochondrial protein synthesis and cytochrome c oxidase activity in rat hippocampus. Physiol Res 2008; 58:127-138. [PMID: 18198996 DOI: 10.33549/physiolres.931383] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Dysfunction of mitochondria induced by ischemia is considered to be a key event triggering neuronal cell death after brain ischemia. Here we report the effect of ischemia-reperfusion on mitochondrial protein synthesis and activity of cytochrome c oxidase (EC 1.9.3.1, COX). By performing 4-vessel occlusion model of global brain ischemia, we have observed that 15 min of global ischemia led to the inhibition of COX subunit I (COXI) synthesis to 56 % of control. After 1, 3 and 24 h of reperfusion, COXI synthesis was inhibited to 46, 50 and 72 % of control, respectively. Depressed synthesis of COXI was not a result of either diminished transcription of COXI gene or increased proteolytic degradation of COXI, since both Northern hybridization and Western blotting did not show significant changes in COXI mRNA and protein level. Thus, ischemia-reperfusion affects directly mitochondrial translation machinery. In addition, ischemia in duration of 15 min and consequent 1, 3 and 24 h of reperfusion led to the inhibition of COX activity to 90.3, 80.3, 81.9 and 83.5 % of control, respectively. Based on our data, we suggest that inhibition of COX activity is rather caused by ischemia-induced modification of COX polypeptides than by inhibition of mitochondrial translation.
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Affiliation(s)
- P Racay
- Institute of Medical Biochemistry, Jessenius Faculty of Medicine, Comenius University, Martin, Slovak Republic.
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14
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Maas M, Hangartner T, Mariani G, McHugh K, Moore S, Grabowski GA, Kaplan P, Vellodi A, Yee J, Steinbach L. Recommendations for the assessment and monitoring of skeletal manifestations in children with Gaucher disease. Skeletal Radiol 2008; 37:185-8. [PMID: 18094966 PMCID: PMC2226077 DOI: 10.1007/s00256-007-0425-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- M. Maas
- grid.7177.60000000084992262Department of Radiology, Suite G1-211, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - T. Hangartner
- grid.268333.f0000000419367937BioMedical Imaging Laboratory, Wright State University and Miami Valley Hospital, Dayton, OH USA
| | - G. Mariani
- grid.5395.a0000000417573729Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
| | - K. McHugh
- grid.420468.cDepartment of Radiology, Great Ormond Street Hospital for Children, London, United Kingdom
| | - S. Moore
- grid.239546.f0000000121536013Department of Imaging Services, Children’s Hospital of Los Angeles, Los Angeles, CA USA
| | - G. A. Grabowski
- grid.239573.90000000090258099Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,grid.24827.3b0000000121799593Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - P. Kaplan
- grid.25879.310000000419368972Department of Pediatrics, The Children’s Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA USA
| | - A. Vellodi
- grid.420468.cMetabolic Unit, Great Ormond Street Hospital for Children, London, United Kingdom
| | - J. Yee
- grid.417555.7000000008814392XGlobal Medical Affairs, Genzyme Corporation, Cambridge, USA
| | - L. Steinbach
- grid.266102.10000000122976811Department of Radiology, University of California San Francisco, San Francisco, CA USA
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15
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Tribulova N, Seki S, Kaplan P, Babusikova E, Knezl V, Mochizuki S, Manoach M. Crucial role of Heart cell Ca2+ handling in initiation, sustaining and termination of lethal arrhythmias. J Mol Cell Cardiol 2007. [DOI: 10.1016/j.yjmcc.2007.03.019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Novakova M, Bruderova V, Sulova Z, Kopacek J, Lacinova L, Kvetnansky R, Vasku A, Kaplan P, Krizanova O, Jurkovicova D. Modulation of expression of the sigma receptors in the heart of rat and mouse in normal and pathological conditions. Gen Physiol Biophys 2007; 26:110-7. [PMID: 17660585] [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: 05/16/2023]
Abstract
The aim of the present work was to study the effect of various stressors (hypoxia, cold, immobilization) on the gene expression of sigma receptors in the left ventricles of rat heart. We have clearly shown that gene expression of sigma receptors is upregulated by strong stress stimuli, such as immobilization and/or hypoxia. Nevertheless, cold as a milder stressor has no effect on sigma receptor's mRNA levels. Signalling cascade of sigma receptors is dependent on IP(3) receptors, since silencing of both, type 1 and 2 IP(3) receptors resulted in decreased mRNA levels of sigma receptors. Physiological relevance of sigma receptors in the heart is not clear yet. Nevertheless, based on the already published data we can assume that sigma receptors might participate in contractile responses in cardiomyocytes.
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MESH Headings
- Age Factors
- Animals
- Cells, Cultured
- Gene Expression Regulation
- Heart Ventricles/metabolism
- Heart Ventricles/physiopathology
- Hypothermia, Induced
- Hypoxia
- Immobilization
- Inositol 1,4,5-Trisphosphate Receptors/metabolism
- Male
- Mice
- Mice, Inbred Strains
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- RNA Interference
- RNA, Messenger/analysis
- Rats
- Rats, Inbred SHR
- Rats, Inbred WKY
- Rats, Sprague-Dawley
- Receptors, sigma/genetics
- Receptors, sigma/metabolism
- Stress, Physiological/genetics
- Stress, Physiological/physiopathology
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Affiliation(s)
- M Novakova
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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17
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Babusikova E, Hatok J, Dobrota D, Kaplan P. Age-related oxidative modifications of proteins and lipids in rat brain. Neurochem Res 2007; 32:1351-6. [PMID: 17401649 DOI: 10.1007/s11064-007-9314-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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: 10/04/2006] [Accepted: 02/14/2007] [Indexed: 12/27/2022]
Abstract
Oxidants have been shown to play a major role in ageing and ageing-related neurodegenerative diseases. In the present study, we investigated the effect of ageing on oxidative damage to lipids and proteins in brain homogenate, mitochondria and synaptosomes of adult (6-month-old), old (15-month-old), and senescent (26-month-old) Wistar rats. There was a significant increase in thiobarbituric acid-reactive substances and conjugated dienes in homogenates, which indicate increased lipid peroxidation (LPO). Oxidative modifications of homogenate proteins were demonstrated by a loss of sulfhydryl content, accumulation of dityrosines and formation of protein conjugates with LPO-end products. Increase in protein conjugates with LPO-end products and a decrease in SH groups were observed also in mitochondria and synaptosomes, but dityrosine content was elevated only in synaptosomes. Protein surface hydrophobicity, measured by fluorescent probe 1-anilino-8-naphthalenesulfonate (ANS), was increased only in homogenate. These results suggest that besides mitochondria and synaptosomes other cellular compartments are oxidatively modified during brain ageing.
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Affiliation(s)
- E Babusikova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic.
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18
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Kaplan P, Jurkovicova D, Babusikova E, Hudecova S, Racay P, Sirova M, Lehotsky J, Drgova A, Dobrota D, Krizanova O. Effect of aging on the expression of intracellular Ca(2+) transport proteins in a rat heart. Mol Cell Biochem 2007; 301:219-26. [PMID: 17549608 DOI: 10.1007/s11010-007-9414-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [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: 09/05/2006] [Accepted: 01/19/2007] [Indexed: 10/23/2022]
Abstract
Aging process is accompanied by various biological dysfunctions including altered calcium homeostasis. Modified calcium handling might be responsible for changed cardiac function and potential development of the pathological state. In the present study we compared the mRNA and protein levels of the intracellular Ca(2+)-handling proteins--inositol 1,4,5-trisphosphate receptor (IP(3)R), ryanodine receptor (RyR), sarcoplasmic reticulum Ca(2+) pump (SERCA2), and also transient receptor potential C (TRPC) channels in cardiac tissues of 5-, 15-, and 26-month-old rats. Aging was accompanied by significant increase in the mRNA levels of IP(3)R and TRPC channels in both ventricles and atria, but mRNA level of the type 2 RyR was unchanged. Protein content of the IP(3)R1 correlated with mRNA levels, in the left ventricle of 15- and 26-month-old rats the value was approximately 1.8 and 2.8-times higher compared to 5-month-old rats. No significant differences were observed in mRNA and protein levels of the SERCA2 among 5-month-old and aged rats. However, Ca(2+)-ATPase activity significantly decreased with age, activities in 5-, 15-, and 26-month-old rats were 421.2 +/- 13.7, 335.5 +/- 18.1 and 304.6 +/- 14.8 nmol P(i) min(-1) mg(-1). These results suggest that altered transporting activity and/or gene expression of Ca(2+)-handling proteins of intracellular Ca(2+) stores might affect cardiac function during aging.
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Affiliation(s)
- P Kaplan
- Department of Biochemistry, Jessenius Faculty of Medicine, Comenius University, Mala Hora 4, Martin, Slovak Republic
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19
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Nickel M, Egger C, Luley J, Krawcyk J, Nickel C, Widermann C, Lahmann C, Mühlbacher M, Buschmann W, Forthuber P, Kettler C, Leiberich P, Tritt K, Mitterlehner F, Kaplan P, Gil FP, Rother W, Loew T. Bullying Girls – Changes after Brief Strategic Family Therapy. Psychother Psychosom Med Psychol 2007. [DOI: 10.1055/s-2007-970684] [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: 10/21/2022]
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20
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Nickel M, Mühlbacher M, Egger C, Buschmann W, Rother N, Rother W, Kaplan P, Loew T, Kettler C, Krawcyk J, Nickel C. Influence of Family Therapy on Bullying Behavior, Cortisol Secretion, Anger, and Quality of Life in Bullying Male Adolescents: a Randomized, Prospective, Controlled Study. Psychother Psychosom Med Psychol 2007. [DOI: 10.1055/s-2007-970682] [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: 10/21/2022]
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21
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Brederlau A, Faigle R, Kaplan P, Odin P, Funa K. Bone morphogenetic proteins but not growth differentiation factors induce dopaminergic differentiation in mesencephalic precursors. Mol Cell Neurosci 2002; 21:367-78. [PMID: 12498780 DOI: 10.1006/mcne.2002.1178] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [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: 11/22/2022] Open
Abstract
Bone morphogenetic proteins (BMPs) and growth differentiation factors (GDFs) are potential therapeutic molecules for the treatment of Parkinson's disease (PO). Here we compare the effects of BMP3, 5, 6, and 7 and GDF5 and 6 in a rat mesencephalic cell culture system that reflects the developmental stage of neurons around birth. High concentrations of BMP5, 6, and 7 and GDF5 and 6 induced astroglial cell fate and a depletion of oligodendrocytes. Only BMP5, 6, and 7, however, significantly increased the number of tyrosine hydroxylase (TH)-positive neurons and induced nuclear translocation of the phosphorylated BMP-restricted Smad in a substantial number of TH- and microtubule-associated protein 2(MAP2ab)-positive cells. None of the proteins protected TH-positive cells against 6-hydroxydopamine-induced oxidative stress. BMP3 was without any effect throughout the studies. We conclude that BMP5, 6, and 7 act directly and independently on precursors of the dopaminergic and astroglial lineage and induce their differentiation. In contrast, GDF5 and 6 primarily affect nonneuronal cells in mesencephalic cultures of this stage.
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Affiliation(s)
- A Brederlau
- Institute of Anatomy and Cell Biology, Göteborg University, SE 40530, Göteborg, Sweden.
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22
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Abstract
Although influenza vaccination is recommended for individuals with HIV infection, there are no data indicating an increased incidence or severity of influenza in this population. We sought to describe the clinical manifestations and morbidity of influenza in HIV-infected patients. All cases of influenza occurring in HIV-infected individuals over 3 years at a large county hospital were reviewed. Forty-three cases of influenza were diagnosed. Most patients presented with typical signs and symptoms of influenza, including cough (90%), myalgias (64%), and fever (52%). Sore throat and headache occurred in less than half of patients. The mean CD4 cell count and HIV viral load in patients with influenza was 340 cells/mm(3) and 3.34 log copies/ml, respectively. No significant differences in CD4 counts or viral loads were noted in patients with pneumonia (n=7) compared with patients without pneumonia (n=36), P>0.5. Six patients were hospitalized. One patient each had encephalitis and renal failure, although the relationship to influenza was not clear. No new or unusual clinical manifestations were observed. The rate of pulmonary complications was similar to other studies in HIV-negative patients; however, the hospitalization rate was higher than commonly seen in HIV-negative individuals.
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Affiliation(s)
- D J Skiest
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas 75390-9113, USA.
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23
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Abstract
OBJECTIVE The purpose of this article is to illustrate the appearance of arachnoiditis ossificans on MR imaging and discuss the implications this diagnosis has on treatment. CONCLUSION In patients with arachnoiditis ossificans, the MR imaging findings are of linear or masslike intrathecal lesions, which generally have some hyperintensity on T1- weighted sequences and are hyper- or hypointense on T2-weighted images, in the setting of arachnoiditis.
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Affiliation(s)
- B Frizzell
- Department of Radiology, Foothills Hospital, 1403 29 St. N.W., Calgary, Alberta, T2N 2T9 Canada
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24
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Affiliation(s)
- P Kaplan
- Blue Cross Blue Shield of Delaware, USA
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25
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Zhong M, Lu Z, Abbas T, Hornia A, Chatakondu K, Barile N, Kaplan P, Foster DA. Novel tumor-promoting property of tamoxifen. Cell Growth Differ 2001; 12:187-92. [PMID: 11331247] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The tumor-promoting phorbol ester TPA (12-O-tetradecanoylphorbol-13-acetate) cooperates with c-Src overexpression to transform rat fibroblasts. TPA transforms c-Src-overexpressing cells by depleting the delta isoform of protein kinase C (PKCdelta). Tamoxifen, which has both estrogen-mimetic and estrogen-antagonist properties, has been widely used to improve the prognosis of breast cancer patients. However, with extended use, there is an increased risk for endometrial and other cancers that can be observed within 10 years of treatment. We report here that tamoxifen, similar to TPA, cooperates with c-Src overexpression to transform 3Y1 rat fibroblasts. Tamoxifen induced both DNA synthesis and anchorage-independent cell proliferation in c-Src-overexpressing, but not in parental, 3Y1 rat fibroblasts. Tamoxifen also induced an association between c-Src and PKCdelta that resulted in the tyrosine phosphorylation and down-regulation of PKCdelta. These phenotypes were not induced by estrogen, indicating that the effect of tamoxifen was in addition to any estrogen-mimetic effects. Thus, in addition to the hyperplasia-inducing capability of an estrogen-mimetic, tamoxifen has an additional tumor-promoting capability similar to that of TPA. The dual tumor-promoting capability of both estrogen- and TPA-mimetic properties for tamoxifen may contribute to the increased incidence of endometrial cancers observed in the relatively short exposure period of <10 years.
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Affiliation(s)
- M Zhong
- Department of Biological Sciences, Hunter College of The City University of New York, New York, New York 10021, USA
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26
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Nonner D, Barrett EF, Kaplan P, Barrett JN. Bone morphogenetic proteins (BMP6 and BMP7) enhance the protective effect of neurotrophins on cultured septal cholinergic neurons during hypoglycemia. J Neurochem 2001; 77:691-9. [PMID: 11299331 DOI: 10.1046/j.1471-4159.2001.00273.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [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: 11/20/2022]
Abstract
The effects of two bone morphogenetic proteins (BMP6, BMP7), alone and in combination with neurotrophins, were tested on cultures of embryonic day 15 rat septum. A week-long exposure to BMP6 or BMP7 in the optimal concentration range of 2-5 n M increased the activity of choline acetyltransferase (ChAT) by 1.6-2-fold, in both septal and combined septal-hippocampal cultures. The increase in ChAT activity reached significance after 4 days and continued to increase over an 11-day exposure. Under control culture conditions neither BMP significantly altered the number of cholinergic neurons, and BMP effects on ChAT activity were less than linearly additive with those of nerve growth factor. The effects of BMPs and BMP + neurotrophin combinations were also assayed under two stress conditions: low-density culture and hypoglycemia. In low-density cultures BMPs and BMP + neurotrophin combinations preserved ChAT activity more effectively than neurotrophins alone. During 24 h hypoglycemic stress, BMPs alone did not preserve ChAT activity, but BMP + neurotrophin combinations preserved ChAT activity much more effectively than neurotrophins alone. These results demonstrate that BMP6 and BMP7 enhance ChAT activity under control and low-density stress conditions, and that during a hypoglycemic stress their trophic effect requires and complements that exerted by neurotrophins.
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Affiliation(s)
- D Nonner
- Department of Physiology and Biophysics, University of Miami Medical School, Miami, USA Creative Biomolecules, Boston, USA
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27
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Affiliation(s)
- P Kaplan
- Division of Genetics, The Children's Hospital of Philadelphia, The University of Pennsylvania School of Medicine, 19104, USA.
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28
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Sue CM, Karadimas C, Checcarelli N, Tanji K, Papadopoulou LC, Pallotti F, Guo FL, Shanske S, Hirano M, De Vivo DC, Van Coster R, Kaplan P, Bonilla E, DiMauro S. Differential features of patients with mutations in two COX assembly genes,SURF-1 andSCO2. Ann Neurol 2001. [DOI: 10.1002/1531-8249(200005)47:5<589::aid-ana6>3.0.co;2-d] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Charrow J, Andersson HC, Kaplan P, Kolodny EH, Mistry P, Pastores G, Rosenbloom BE, Scott CR, Wappner RS, Weinreb NJ, Zimran A. The Gaucher registry: demographics and disease characteristics of 1698 patients with Gaucher disease. Arch Intern Med 2000; 160:2835-43. [PMID: 11025794 DOI: 10.1001/archinte.160.18.2835] [Citation(s) in RCA: 346] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND The Gaucher Registry, the largest database of patients with Gaucher disease (GD) worldwide, was initiated to better delineate the progressive nature of the disorder and determine optimal therapy. This report describes the demographic and clinical characteristics of 1698 patients with GD before they received enzyme replacement therapy. METHODS Physicians worldwide who treat patients with GD were invited to submit prospective and retrospective data for an ongoing registry, using standardized data collection forms, for central processing and review. RESULTS Most patients were from the United States (45%) and Israel (17%), but patients are from 38 countries. Most (94%) had type 1 GD, fewer than 1% had type 2, and 5% had type 3. Mutant allele frequency data, available for 45% of patients, showed the most common alleles to be N370S (53%), L444P (18%), 84GG (7%), and IVS2+1 (2%). Twenty-five percent of L444P homozygotes (13 of 52 patients) had type 1 GD phenotype. Mean age at diagnosis in patients with the N370S/N370S genotype was 27.2 years (SD, 19.7 years); in L444P/L444P patients, 2. 3 years (SD, 3.2 years). Histories of bone pain and radiological bone disease were reported by 63% and 94% of patients, respectively; both were more likely in asplenic patients than in patients with spleens. Mean spleen and liver volumes were 19.8 and 2.0 multiples of normal, respectively. Anemia and thrombocytopenia were present in 64% and 56%, respectively. Thrombocytopenia was present in 13% of asplenic patients. CONCLUSIONS The Gaucher Registry permits a comprehensive understanding of the clinical spectrum of GD because of the uniquely large sample size. The Registry will be useful in evaluating the effects of specific therapies in GD and the possible influences of environment, ethnicity, and genotype on the natural history of the disorder.
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Affiliation(s)
- J Charrow
- Section of Clinical Genetics, Children's Memorial Hospital-59, 2300 Children's Plaza, Chicago, IL 60614, USA.
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Abstract
In spite of the published claims to the contrary, Paracoccus denitrificans was shown to contain a heme derivative, virtually indistinguishable from the Escherichia coli heme O on the basis of the reverse-phase high-performance liquid chromatography and MALDI-TOF mass spectrometry analyses. Aeration of the anoxically grown culture resulted in the disappearance of a significant portion of this compound with concomitant build-up of heme A.
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Affiliation(s)
- P Kaplan
- Department of Biochemistry, Faculty of Medicine, Masaryk University, Czech Republic
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31
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Peoples RJ, Cisco MJ, Kaplan P, Francke U. Identification of the WBSCR9 gene, encoding a novel transcriptional regulator, in the Williams-Beuren syndrome deletion at 7q11.23. Cytogenet Cell Genet 2000; 82:238-46. [PMID: 9858827 DOI: 10.1159/000015110] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have identified a novel gene (WBSCR9) within the common Williams-Beuren syndrome (WBS) deletion by interspecies sequence conservation. The WBSCR9 gene encodes a roughly 7-kb transcript with an open reading frame of 1483 amino acids and a predicted protein product size of 170.8 kDa. WBSCR9 is comprised of at least 20 exons extending over 60 kb. The transcript is expressed ubiquitously throughout development and is subject to alternative splicing. Functional motifs identified by sequence homology searches include a bromodomain; a PHD, or C4HC3, finger; several putative nuclear localization signals; four nuclear receptor binding motifs; a polyglutamate stretch and two PEST sequences. Bromodomains, PHD motifs and nuclear receptor binding motifs are cardinal features of proteins that are involved in chromatin remodeling and modulation of transcription. Haploinsufficiency for WBSCR9 gene products may contribute to the complex phenotype of WBS by interacting with tissue-specific regulatory factors during development.
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Affiliation(s)
- R J Peoples
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305-5323 (USA)
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32
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Sue CM, Karadimas C, Checcarelli N, Tanji K, Papadopoulou LC, Pallotti F, Guo FL, Shanske S, Hirano M, De Vivo DC, Van Coster R, Kaplan P, Bonilla E, DiMauro S. Differential features of patients with mutations in two COX assembly genes, SURF-1 and SCO2. Ann Neurol 2000; 47:589-95. [PMID: 10805329] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
We screened 41 patients with undiagnosed encephalomyopathies and cytochrome c oxidase (COX) deficiency for mutations in two COX assembly genes, SURF-1 and SCO2; 6 patients had mutations in SURF-1 and 3 had mutations in SCO2. All of the mutations in SURF-1 were small-scale rearrangements (deletions/insertions); 3 patients were homozygotes and the other 3 were compound heterozygotes. All patients with SCO2 mutations were compound heterozygotes for nonsense or missense mutations. All of the patients with mutations in SURF-1 had Leigh syndrome, whereas the 3 patients with SCO2 mutations had a combination of encephalopathy and hypertrophic cardiomyopathy, and the neuropathology did not show the typical features of Leigh syndrome. In patients with SCO2 mutations, onset was earlier and the clinical course and progression to death more rapid than in patients with SURF-1 mutations. In addition, biochemical and morphological studies showed that the COX deficiency was more severe in patients with SCO2 mutations. Immunohistochemical studies suggested that SURF-1 mutations result in similarly reduced levels of mitochondrial-encoded and nuclear-encoded COX subunits, whereas SCO2 mutations affected mitochondrial-encoded subunits to a greater degree. We conclude that patients with mutations in SURF-1 and SCO2 genes have distinct phenotypes despite the common biochemical defect of COX activity.
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Affiliation(s)
- C M Sue
- Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY, USA
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33
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Lichtenstein GR, Yang YX, Nunes FA, Lewis JD, Tuchman M, Tino G, Kaiser LR, Palevsky HI, Kotloff RM, Furth EE, Bavaria JE, Stecker MM, Kaplan P, Berry GT. Fatal hyperammonemia after orthotopic lung transplantation. Ann Intern Med 2000; 132:283-7. [PMID: 10681283 DOI: 10.7326/0003-4819-132-4-200002150-00006] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND A case of fatal hyperammonemia complicating orthotopic lung transplantation was previously reported. OBJECTIVE To describe the incidence, clinical features, and treatment of hyperammonemia associated with orthotopic lung transplantation. DESIGN Retrospective cohort analysis. SETTING Academic medical center and lung transplantation center in Philadelphia, Pennsylvania. PATIENTS 145 sequential adult patients who underwent orthotopic lung transplantation. MEASUREMENTS Plasma ammonium levels. RESULTS Six of the 145 patients who had had orthotopic lung transplantation developed hyperammonemia, all within the first 26 days after transplantation. The 30-day post-transplantation mortality rate was 67% for patients with hyperammonemia compared with 17% for those without hyperammonemia (P = 0.01). Development of major gastrointestinal complications (P = 0.03), use of total parenteral nutrition (P < 0.001), and lung transplantation for primary pulmonary hypertension (P = 0.045) were associated with hyperammonemia. CONCLUSIONS Hyperammonemia is a potentially fatal event occurring after orthotopic lung transplantation. It is associated with high nitrogen load, concurrent medical stressors, primary pulmonary hypertension, and hepatic glutamine synthetase deficiency.
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Affiliation(s)
- G R Lichtenstein
- Department of Medicine, Hospital of the University of Pennsylvania, University of Pennsylvania School of Medicine, Philadelphia 19104-4283, USA
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Affiliation(s)
- L Ierardi-Curto
- Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, USA
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Trakya FV, Saltik A, Kaplan P, Kiliç T, Yardim T. Evaluation of gestational age and birth weight based on ultrasound fetal growth measurements a report of 627 cases from Edirne/Turkey. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)83474-8] [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]
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Papadopoulou LC, Sue CM, Davidson MM, Tanji K, Nishino I, Sadlock JE, Krishna S, Walker W, Selby J, Glerum DM, Coster RV, Lyon G, Scalais E, Lebel R, Kaplan P, Shanske S, De Vivo DC, Bonilla E, Hirano M, DiMauro S, Schon EA. Fatal infantile cardioencephalomyopathy with COX deficiency and mutations in SCO2, a COX assembly gene. Nat Genet 1999; 23:333-7. [PMID: 10545952 DOI: 10.1038/15513] [Citation(s) in RCA: 389] [Impact Index Per Article: 15.6] [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: 12/20/2022]
Abstract
Mammalian cytochrome c oxidase (COX) catalyses the transfer of reducing equivalents from cytochrome c to molecular oxygen and pumps protons across the inner mitochondrial membrane. Mitochondrial DNA (mtDNA) encodes three COX subunits (I-III) and nuclear DNA (nDNA) encodes ten. In addition, ancillary proteins are required for the correct assembly and function of COX (refs 2, 3, 4, 5, 6). Although pathogenic mutations in mtDNA-encoded COX subunits have been described, no mutations in the nDNA-encoded subunits have been uncovered in any mendelian-inherited COX deficiency disorder. In yeast, two related COX assembly genes, SCO1 and SCO2 (for synthesis of cytochrome c oxidase), enable subunits I and II to be incorporated into the holoprotein. Here we have identified mutations in the human homologue, SCO2, in three unrelated infants with a newly recognized fatal cardioencephalomyopathy and COX deficiency. Immunohistochemical studies implied that the enzymatic deficiency, which was most severe in cardiac and skeletal muscle, was due to the loss of mtDNA-encoded COX subunits. The clinical phenotype caused by mutations in human SCO2 differs from that caused by mutations in SURF1, the only other known COX assembly gene associated with a human disease, Leigh syndrome.
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Affiliation(s)
- L C Papadopoulou
- Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
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Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is mainly a stromal process, showing an increased ratio of stromal to epithelial elements, a collagen type III downregulation, and a collagen types I and IV upregulation. Little is known about elastin gene expression in BPH tissues due to difficulties related to extensive alternative splicing of the elastin gene. Therefore, we analyzed and quantified elastin gene expression in BPH. METHODS A competitive reverse transcriptase-polymerase chain reaction (competitive RT-PCR) quantitative technique was used, and a quantitative elastin mRNA analysis with normal (n = 10) and BPH (n = 12) tissues was performed with two newly designed elastin primers. Small tissue samples (4-8 mg) were homogenized and sonicated, and cDNA was synthesized from mRNA using a RT reaction. Various target (wild-type) elastin cDNAs with unknown concentrations were competitively coamplified with known serial dilutions of the control mutant template, differing from the target cDNA by a short deletion. Gel fractions and computerized densitometry, were performed and cDNA concentration was calculated by linear regression. RESULTS The primers identified in our study (BOB-1 and BOB-2) accurately amplified a consistent length of the elastin cDNA, avoiding areas of alternative splicing. The average elastin mRNA concentration in BPH tissues was 53 attomole/mg +/- 11.6 vs. 140.6 attomole/mg +/- 19.6 in normal prostatic tissue (P = 0.019). The variation within every sample was less than 10%. CONCLUSIONS Our observations suggest a significant downregulation (70%) of the elastin mRNA gene in the transition zone of BPH patients.
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Affiliation(s)
- B Djavan
- Department of Urology, University of Vienna, Vienna, Austria.
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Sívori M, Rhodius E, Kaplan P, Talarico M, Gorojod G, Carreras B, López C, Shimojo C. [Exercise training in chronic obstructive pulmonary disease. Comparative study of aerobic training of lower limbs vs. combination with upper limbs]. Medicina (B Aires) 1999; 58:717-27. [PMID: 10347965] [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: 02/12/2023] Open
Abstract
A prospective, randomized and controlled study has been performed in 28 patients with severe COPD. A group of 14 has been trained with their lower limbs (LL), while another similar group of 14 patients was also trained with their upper limbs (UL). Results showed improvement in both groups in the endurance test for LL, dyspnea scale, efficiency and muscular working capacity. A considerable improvement was observed in the oxygen uptake at the anerobic threshold (VO2AT) which suggests a training effect, expressed through an improvement in exercise tolerance. Only the group who trained UL showed a remarkable improvement in the dyspnea scale, endurance test and maximal static mouth pressure, showing a better intrinsic working capacity and participation of the UL muscles producing those manoeuvres. At the end of training, quality of life was significantly increased and the hospitalization rate was lower in both groups. According to these findings, it is suggested that patients with severe COPD included in training programmes add UL exercises to the LL usually carried out.
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Affiliation(s)
- M Sívori
- Servicio de Neumonología, Policlínico Bancario, Buenos Aires, Argentina.
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Abstract
OBJECTIVE We identified clinical risk factors for seizure-related motor vehicle crashes in patients with epilepsy. BACKGROUND Current US laws permit epilepsy patients with controlled seizures to drive. These laws attempt to balance the important economic and social value of driving with the risk to public safety from seizure-related crashes. Various clinical factors are considered in these laws, particularly the seizure-free interval. Driving restrictions range from 3 to 18 months, however, and studies have not established how these various seizure-free intervals and other clinical factors influence the risk for seizure-related motor vehicle crashes. METHODS We performed a retrospective case-control study to determine the influence of clinical risk factors associated with seizure-related motor vehicle crashes. Both "case" and "control" patients had epilepsy, drove, and were from the same clinic, but the cases differed in having had seizure-related crashes. RESULTS Fifty patients with epilepsy who crashed during seizures and 50 matched control patients were compared. Factors that significantly decreased the odds of patients with epilepsy having motor vehicle crashes due to seizures were: long seizure-free intervals, reliable auras, few prior nonseizure-related accidents, and having had their antiepileptic drugs (AEDs) reduced or switched. For example, patients who had seizure-free intervals > or = 12 months had a 93% reduced odds for crashing compared to patients with shorter intervals. Other findings were: 25% of patients had more than one seizure-related crash and 20% had missed an AED dose just prior to their crash. The majority (54%) of patients who crashed were driving illegally, with seizure-free intervals shorter than legally permitted. CONCLUSION Seizure-free intervals, the presence of reliable auras, AED therapy modifications, and a history of nonseizure-induced crashes should be considered when counseling patients with epilepsy on driving and when formulating driving regulatory policy. Case control studies of crashes due to seizures can help in assessing and monitoring such risks.
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Affiliation(s)
- G L Krauss
- Department of Neurology, Johns Hopkins University, Baltimore, MD, USA.
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Berry GT, Bridges ND, Nathanson KL, Kaplan P, Clancy RR, Lichtenstein GR, Spray TL. Successful use of alternate waste nitrogen agents and hemodialysis in a patient with hyperammonemic coma after heart-lung transplantation. Arch Neurol 1999; 56:481-4. [PMID: 10199339 DOI: 10.1001/archneur.56.4.481] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Lethal hyperammonemic coma has been reported in 2 adults after lung transplantation. It was associated with a massive elevation of brain glutamine levels, while plasma glutamine levels were normal or only slightly elevated. In liver tissue, glutamine synthetase activity was markedly reduced, and the histologic findings resembled those of Reye syndrome. The adequacy of therapy commonly used for inherited disorders of the urea cycle has not been adequately evaluated in patients with this form of secondary hyperammonemia. OBJECTIVE To determine whether hemodialysis, in conjunction with intravenous sodium phenylacetate, sodium benzoate, and arginine hydrochloride therapy, would be efficacious in a patient with hyperammonemic coma after solid-organ transplantation. DESIGN Case report. SETTING A children's hospital. PATIENT A 41-year-old woman with congenital heart disease developed a hyperammonemic coma with brain edema 19 days after undergoing a combined heart and lung transplantation. METHODS Ammonium was measured in plasma. Amino acids were quantitated in plasma and cerebrospinal fluid by column chromatography. The effectiveness of therapy was assessed by measuring plasma ammonium levels and intracranial pressure and performing sequential neurological examinations. RESULTS The patient had the anomalous combination of increased cerebrospinal fluid and decreased plasma glutamine levels. To our knowledge, she is the first patient with this complication after solid-organ transplantation to survive after combined therapy with sodium phenylacetate, sodium benzoate, arginine hydrochloride, and hemodialysis. Complications of the acute coma included focal motor seizures, which were controlled with carbamazepine, and difficulty with short-term memory. CONCLUSIONS The aggressive use of hemodialysis in conjunction with intravenous sodium phenylacetate, sodium benzoate, and arginine hydrochloride therapy may allow survival in patients after solid-organ transplantation. An acute acquired derangement in extra-central nervous system glutamine metabolism may play a role in the production of hyperammonemia in this illness that resembles Reye syndrome, and, as in other hyperammonemic disorders, the duration and degree of elevation of brain glutamine levels may be the important determining factors in responsiveness to therapy.
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Affiliation(s)
- G T Berry
- Department of Pediatrics, University of Pennsylvania School of Medicine, The Children's Hospital of Philadelphia, 19104, USA
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Meyers KE, Kaplan P, Kaplan BS. Nephrotic syndrome, microcephaly, and developmental delay: three separate syndromes. Am J Med Genet 1999; 82:257-60. [PMID: 10215551] [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: 02/12/2023]
Abstract
We describe a patient with microcephaly, developmental delay, and nephrotic syndrome who had normal renal function and normal brain imaging studies. She does not have the Galloway-Mowat syndrome. The concurrence of nephrotic syndrome with microcephaly and developmental delay may be coincidental, or may reflect one of at least three syndromes: Galloway-Mowat, a second syndrome of microcephaly, nephrotic syndrome and developmental delay (MNSDD), and a third syndrome of microcephaly, developmental delay, and spondylorhizomelic short stature.
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Affiliation(s)
- K E Meyers
- Division of Nephrology, Children's Hospital of Philadelphia and the University of Pennsylvania 19104, USA
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Abstract
BACKGROUND AND PURPOSE Osteogenic protein-1 (OP1) not only possesses trophic activity on bone tissue but also influences neuronal survival and differentiation in vitro. Specific receptors for OP1 are present in brain and spinal cord and can be upregulated during cerebral contusion. OP1 is a member of the transforming growth factor-beta superfamily, several of whose members possess neuroprotective activity. In this study, the neuroprotective effect of OP1 in cerebral ischemia was evaluated in adult animals. METHODS Adult male Sprague-Dawley rats were anesthetized with chloral hydrate. OP1 or vehicle was administered intracortically or intracerebroventricularly to the rats. Thirty minutes, 24 hours, or 72 hours after OP1 injection, the right middle cerebral artery (MCA) was ligated for 90 minutes. Twenty-four hours after reperfusion, animals were tested for motor behavior. The animals were subsequently anesthetized with urethane and perfused intracardially with saline. Brain tissue was removed, sliced, and incubated with 2% triphenyltetrazolium chloride to localize the area of infarction. RESULTS Only animals pretreated with OP1 24 hours before MCA ligation showed a reduction in motor impairment. OP1, given 30 minutes or 72 hours before MCA ligation, did not reduce cortical infarction. In contrast, pretreatment with OP1 24 hours before MCA ligation significantly attenuated the volume of infarction in the cortex, in agreement with the behavioral findings. CONCLUSIONS Intracerebral administration of OP1 24 hours before MCA ligation reduces ischemia-induced injury in the cerebral cortex.
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Affiliation(s)
- S Z Lin
- Department of Pharmacology and Neurosurgery, National Defense Medical Center, Taipei, Taiwan
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Collins MH, Schwarze U, Carpentieri DF, Kaplan P, Nathanson K, Meyer JS, Byers PH. Multiple vascular and bowel ruptures in an adolescent male with sporadic Ehlers-Danlos syndrome type IV. Pediatr Dev Pathol 1999; 2:86-93. [PMID: 9841712 DOI: 10.1007/s100249900095] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Ehlers-Danlos syndrome (EDS) type IV is a heritable disorder resulting from mutations in the COL3A1 gene that cause deficient production of type III collagen. Clinical manifestations of EDS type IV include hypermobility of small joints, excessive bruisability, thin translucent skin, poor wound healing, bowel rupture, and vascular rupture that is often fatal. A 14-year-old male without a family history of EDS died following multiple bowel and abdominal blood vessel ruptures. Even in areas apart from rupture sites, the bowel wall was thin because of diminished submucosa and muscularis propria. Similarly, the walls of blood vessels in bowel submucosa and elsewhere in the abdomen varied in thickness, and contained frayed and fragmented elastic tissue fibers. Fibroblasts cultured from the patient's skin secreted reduced quantities of type III collagen that was explained by a point mutation in one copy of the COL3A1 gene. EDS type IV should be strongly suspected in any patient with otherwise unexplainable bowel and/or vessel rupture.
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Affiliation(s)
- M H Collins
- Department of Pathology, Children's Hospital of Philadelphia, PA 19104, USA
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Paperna T, Peoples R, Wang YK, Kaplan P, Francke U. Genes for the CPE receptor (CPETR1) and the human homolog of RVP1 (CPETR2) are localized within the Williams-Beuren syndrome deletion. Genomics 1998; 54:453-9. [PMID: 9878248 DOI: 10.1006/geno.1998.5619] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [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: 12/31/2022]
Abstract
Williams-Beuren syndrome (WBS) is a neurodevelopmental disorder affecting multiple systems. Haploinsufficiency of genes deleted in chromosomal region 7q11.23 is the likely cause for this syndrome. We now report the localization of the genes for the CPE-R (Clostridium perfringens enterotoxin receptor, CPETR1) and the human homolog of RVP1 (rat ventral prostate 1 protein, CPETR2), both previously mapped to 7q11, to the WBS critical region. A single nucleotide polymorphism (SNP) present in CPETR1 has been identified and was used to determine parental origin of the deleted allele in five informative families. The mouse homologs Cpetr1 and Cpetr2 were identified and mapped to the conserved syntenic region on mouse chromosome 5. Northern blot analysis of CPETR1 demonstrates tissue specificity, with expression in kidney, lung, thyroid, and gastrointestinal tissues. In mouse, Cpetr1 is expressed in the early embryo, appears to be developmentally upregulated during gestation, and is present in adult tissues. Our results suggest a role for CPE-R in internal organ development and function during pre- and postnatal life.
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Affiliation(s)
- T Paperna
- Department of Genetics, Stanford University School of Medicine, Stanford, California, 94305, USA
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Sentongo TA, Lichtenstein G, Nathanson K, Kaplan P, Maller E. Intestinal perforation in Ehlers-Danlos syndrome after enema treatment for constipation. J Pediatr Gastroenterol Nutr 1998; 27:599-602. [PMID: 9822331 DOI: 10.1097/00005176-199811000-00020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- T A Sentongo
- Division of Gastroenterology and Nutrition, The Children's Hospital of Philadelphia, Pennsylvania 19104, USA
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Abstract
OBJECTIVE Williams syndrome (WS) is associated with neurobehavioral abnormalities that include irritability and attention-deficit/hyperactivity disorder. Parents often report children having difficulties initiating and maintaining sleep because of restlessness and arousals. Therefore we evaluated a group of children with WS for the presence of a movement arousal sleep disorder. METHODS Twenty-eight families of children with WS participated in a telephone survey aimed to screen for a movement arousal disorder. Of the 16 children identified as having such a disorder, 7 (mean age, 3.9 +/- 2.2 years) underwent polysomnography. Their studies were compared with those of 10 matched control subjects (mean age, 5.3 +/- 2.0 years). RESULTS The 7 subjects with WS who were screened by the survey had sleep latency, total sleep time, arousals, and awakenings that were similar to those of control subjects. However, they presented with a disorder of periodic limb movement in sleep (PLMS). The PLMS index in the subjects with WS was 14.9 +/- 6.2 versus 2.8 +/- 1.9 in control subjects (P < .0001). In addition, arousal and awakening in subjects with WS were strongly associated with PLMS. Moreover, children with WS spend more time awake during sleep periods than control subjects (10.0% +/- 7.0% vs 4.4% +/- 4.7%; P < .05). Five children were treated with clonazepam, and in 4 a significant clinical response was noted. CONCLUSION We report an association between WS and PLMS. Clonazepam may reduce the clinical symptoms of PLMS in some of these children.
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Affiliation(s)
- R Arens
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia, PA 19104-4399, USA
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Charrow J, Esplin JA, Gribble TJ, Kaplan P, Kolodny EH, Pastores GM, Scott CR, Wappner RS, Weinreb NJ, Wisch JS. Gaucher disease: recommendations on diagnosis, evaluation, and monitoring. Arch Intern Med 1998; 158:1754-60. [PMID: 9738604 DOI: 10.1001/archinte.158.16.1754] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Timely diagnosis and continued monitoring of patients with type I Gaucher disease is critical because skeletal involvement can permanently disable patients and visceral organ involvement can lead to abdominal pain and secondary hematologic and biochemical complications. OBJECTIVE To seek clinical consensus for minimum recommendations for effective diagnosis and monitoring of patients with type I Gaucher disease. PARTICIPANTS, EVIDENCE, AND CONSENSUS PROCESS: Contributing authors collaborated in quarterly meetings over a 2-year period to synthesize recommendations from peer-reviewed publications and their own medical experiences. These physicians care for most patients with Gaucher disease in the United States and serve as the US Regional Coordinators for the International Collaborative Gaucher Group Registry, the world's largest database for this disorder. CONCLUSIONS The definitive method of diagnosis is enzyme assay of beta-glucocerebrosidase activity. Schedules differ for monitoring complications of type I Gaucher disease, depending on symptoms and whether enzyme replacement therapy is used. Hematologic and biochemical involvement should be assessed by complete blood cell count, including platelets, acid phosphatase, and liver enzymes, at baseline and every 12 months in untreated patients and every 3 months and at enzyme replacement therapy changes in treated patients. Visceral involvement should be assessed at diagnosis using magnetic resonance imaging or computed tomographic scans. Skeletal involvement should be assessed at diagnosis using T1- and T2-weighted magnetic resonance imaging of the entire femora and plain radiography of the femora, spine, and symptomatic sites. Follow-up skeletal and visceral assessments are recommended every 12 to 24 months in untreated patients, and every 12 months and at enzyme replacement therapy changes in treated patients.
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Affiliation(s)
- J Charrow
- Department of Pediatrics, Children's Memorial Hospital and Northwestern University Medical School, Chicago, Ill 60614, USA.
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Ramos FJ, Kaplan BS, Bellah RD, Zackai EH, Kaplan P. Further evidence that the Hajdu-Cheney syndrome and the "serpentine fibula-polycystic kidney syndrome" are a single entity. Am J Med Genet 1998; 78:474-81. [PMID: 9714016 DOI: 10.1002/(sici)1096-8628(19980806)78:5<474::aid-ajmg14>3.0.co;2-c] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The Hajdu-Cheney syndrome (HCS) is a rare autosomal dominant disorder. It comprises a coarse face, short neck, hirsutism, joint laxity, and normal intelligence. Bone dysplasias, include acro-osteolysis, bathrocephaly, and vertebral anomalies. In 1988, Exner [1988: Eur J Pediatr 147:544-546] coined the term "serpentine fibula-polycystic kidney syndrome" (SFPKS) when he reported on a girl with short stature, unusual facial appearance, polycystic kidneys, and elongated curved fibulae. He postulated that it was a new entity different from the Melnick-Needles syndrome. Since his report, five similar cases have been published. Similarities between both HCS and SFPKS were noticed first by us and then by other authors. In this report we show that many clinical and radiological characteristics are shared by the HCS and the SFPKS and hypothesize that they represent a single entity with a variable degree of expression.
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Affiliation(s)
- F J Ramos
- Sección de Genética, Departamento de Pediatría, Facultad de Medicina, Universidad de Zaragoza, Spain.
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Lam WW, Wang ZJ, Zhao H, Berry GT, Kaplan P, Gibson J, Kaplan BS, Bilaniuk LT, Hunter JV, Haselgrove JC, Zimmermann RA. 1H MR spectroscopy of the basal ganglia in childhood: a semiquantitative analysis. Neuroradiology 1998; 40:315-23. [PMID: 9638674 DOI: 10.1007/s002340050592] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [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: 02/07/2023]
Abstract
Proton MR spectra of the basal ganglia were obtained from 28 patients, 24 male and 14 female, median age 16.3 months (5 weeks to 31 years). They included 17 patients with normal MRI of the basal ganglia without metabolic disturbance (control group) and 11 patients with various metabolic diseases: one case each of high serum sodium and high serum osmolarity, cobalamin C deficiency, Leigh disease, Galloway-Mowat syndrome, Pelizaeus-Merzbacher disease, hemolytic-uremic syndrome and Wilson disease and two cases of Alagille syndrome and methylmalonic acidemia with abnormal MRI of the basal ganglia or blood or urine analysis (abnormal group). The MR spectrum was measured by using STEAM. The MR-visible water content of the region of interest was obtained. Levels of myoinositol, choline, creatine and N-acetylaspartate were measured using a semiquantitative approach, with absolute reference calibration. In the control group, there was a gradual drop of water content over the first year of life; N-acetylaspartate, creatine and myoinositol levels showed no significant change with age, in contrast to the occipital, parietal and cerebellar regions. Choline showed a gradual decrease for the first 2 years of life and then remained fairly constant. In the abnormal group the water content was not significantly different. N-Acetylaspartate was decreased in patients with high serum sodium and high serum osmolarity, cobalamin C deficiency, Leigh disease and one case of methylmalonic acidemia. Decreased creatine was also found in Leigh disease, and decreased choline in Galloway-Mowat syndrome and Wilson disease. Myoinositol was elevated in the patient with abnormally high serum sodium, and decreased in the hemolytic-uremic syndrome.
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Affiliation(s)
- W W Lam
- Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital Shatin, N.T., Chinese University of Hong Kong, China
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Koo KH, Dussault R, Kaplan P, Kim R, Ahn IO, Christopher J, Song HR, Wang GJ. Age-related marrow conversion in the proximal metaphysis of the femur: evaluation with T1-weighted MR imaging. Radiology 1998; 206:745-8. [PMID: 9494495 DOI: 10.1148/radiology.206.3.9494495] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [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: 02/06/2023]
Abstract
PURPOSE To determine the normal chronologic changes in fatty marrow conversion of the proximal femoral metaphysis at magnetic resonance (MR) imaging. MATERIALS AND METHODS The "marrow conversion index," (signal intensity of the proximal femoral metaphysis divided by signal intensity of the greater trochanter) x 100, was measured in 182 hips of 91 patients who had no evidence of osteonecrosis or diseases involving bone marrow, no history of steroid treatment, and no other risk factors for osteonecrosis. The results were evaluated according to patient age and sex. RESULTS The index showed a progressive linear increase with age regardless of sex. The index was 65.4% +/- 5.6 (standard deviation) in patients aged 15-19 years and increased monotonously with age to 87.5% +/- 7.0 in patients aged 60-79 years. Simple linear regression of the index according to age group showed that the marrow conversion index is roughly equal to 63 + 4 x Z (p < .001), where Z is 1.5 for patients aged 15-19 years, 2.0 for patients aged 20-29 years, 3.0 for patients aged 30-39 years, 4.0 for patients aged 40-49 years, 5.0 for patients aged 50-59 years, and 6.0 for patients aged 60-79 years. CONCLUSION There is a linear association of marrow conversion index and age. The estimating equation may provide baseline information for the marrow conversion index.
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Affiliation(s)
- K H Koo
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, USA
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