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Rodriguez JC, Chatterjee A, Pamboukian S, Tallaj J, Joly J, Lenneman A, Aryal S, Assad A, Hoopes C, Acharya D, Rajapreyar I. Persistent Mitral Regurgitation after Left Ventricular Assist Device: A Clinical Conundrum. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.145] [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: 10/24/2022] Open
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Oguti B, Assad A, Andrews N, Barug D, Dang DA, Halperin S, Hoang H, Holder B, Kampmann B, Kazi M, Langley J, Leuridan E, Madavan N, Maertens K, Miller E, Munoz F, Omer S, Pollard A, Rice T, Rots N. The Half-Life of Maternal Transplacental Antibodies in infants from mothers vaccinated with diphtheria, tetanus and pertussis: An individual participant data meta-analysis. Access Microbiol 2020. [DOI: 10.1099/acmi.fis2019.po0046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Ali Assad
- Aga Khan University, Karachi, Pakistan
| | | | - Daantje Barug
- Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Duc Anh Dang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | | | - Ha Hoang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Beth Holder
- Imperial College London, London, United Kingdom
| | - Beate Kampmann
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | | | | | | | | | | | - Flor Munoz
- Baylor College of Medicine, Houston, USA
| | | | | | - Tom Rice
- Imperial College London, London, United Kingdom
| | - Nynke Rots
- Public Health England, London, United Kingdom
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Kitsos S, Diop CM, Assad A, Nimal JC, Ridoux P. Improvement of Gamma-Ray SnTransport Calculations Including Coherent and Incoherent Scatterings and Secondary Sources of Bremsstrahlung and Fluorescence: Determination of Gamma-Ray Buildup Factors. NUCL SCI ENG 2017. [DOI: 10.13182/nse96-a24184] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Kitsos
- Commissariat à I’Energie Atomique, CEA–DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et Probabilité Service d’Études des Réacteurs et de Mathématiques Appliquées 91191 Gif-sur-Yvette Cedex, France
| | - C. M. Diop
- Commissariat à I’Energie Atomique, CEA–DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et Probabilité Service d’Études des Réacteurs et de Mathématiques Appliquées 91191 Gif-sur-Yvette Cedex, France
| | - A. Assad
- Commissariat à I’Energie Atomique, CEA–DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et Probabilité Service d’Études des Réacteurs et de Mathématiques Appliquées 91191 Gif-sur-Yvette Cedex, France
| | - J. C. Nimal
- Commissariat à I’Energie Atomique, CEA–DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et Probabilité Service d’Études des Réacteurs et de Mathématiques Appliquées 91191 Gif-sur-Yvette Cedex, France
| | - P. Ridoux
- Electricité de France/SEPTEN/Département des Réacteurs 12-14, rue Dutrievoz - 69628 Villeurbanne, France
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Kitsos S, Assad A, Diop CM, Nimal JC, Ridoux P. Determination of Point Isotropic Buildup Factors of Gamma Rays Including Incoherent and Coherent Scattering for Aluminum, Iron, Lead, and Water by the Discrete Ordinates Method. NUCL SCI ENG 2017. [DOI: 10.13182/nse94-a13568] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Kitsos
- Centre d Etudes Nucleates Saclay, CEA/DRN/DMT/SERMA/LEPP; Shielding Laboratory 91191 Gif-sur-Yvette, France
| | - A. Assad
- Centre d Etudes Nucleates Saclay, CEA/DRN/DMT/SERMA/LEPP; Shielding Laboratory 91191 Gif-sur-Yvette, France
| | - C. M. Diop
- Centre d Etudes Nucleates Saclay, CEA/DRN/DMT/SERMA/LEPP; Shielding Laboratory 91191 Gif-sur-Yvette, France
| | - J. C. Nimal
- Centre d Etudes Nucleates Saclay, CEA/DRN/DMT/SERMA/LEPP; Shielding Laboratory 91191 Gif-sur-Yvette, France
| | - P. Ridoux
- Electricité de France, EDF/SEPTEN/Reactors Department, 12-14, rue Dutrievoz 69628 Villeurbanne, France
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Affiliation(s)
| | - A. Assad
- Purdue University, School of Nuclear Engineering, West Lafayette, Indiana 47907
| | - Stephen Beus
- Westinghouse Electric Corporation, Bettis Atomic Power Laboratory West Mifflin, Pennsylvania 15122-0079
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Assad A, Chiron M, Nimal JC, Diop CM, Ridoux P. A New Approximating Formula for Calculating Gamma-Ray Buildup Factors in Multilayer Shields. NUCL SCI ENG 2017. [DOI: 10.13182/nse99-a2060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Assad
- Commissariat à l’Énergie Atomique, CEA-DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et de Probabilités Service d’Études des Réacteurs et de Mathématiques Appliquées, 91191 Gif-sur-Yvette Cedex, France
| | - M. Chiron
- Commissariat à l’Énergie Atomique, CEA-DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et de Probabilités Service d’Études des Réacteurs et de Mathématiques Appliquées, 91191 Gif-sur-Yvette Cedex, France
| | - J. C. Nimal
- Commissariat à l’Énergie Atomique, CEA-DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et de Probabilités Service d’Études des Réacteurs et de Mathématiques Appliquées, 91191 Gif-sur-Yvette Cedex, France
| | - C. M. Diop
- Commissariat à l’Énergie Atomique, CEA-DRN/DMT/SERMA/LEPP Centre d’Études de Saclay, Laboratoire d’Études de Protection et de Probabilités Service d’Études des Réacteurs et de Mathématiques Appliquées, 91191 Gif-sur-Yvette Cedex, France
| | - P. Ridoux
- Électricité de France, EDF-SEPTEN0Département des Réacteurs 12-14, rue Dutrievoz - 69628 Villeurbanne, France
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Naser HA, Hadi NR, Ibrahim AF, Assad A. Study the Pulmonary Hypertension among Heavy Smokers Young Adult Males before the Clinical Evidences of Chronic Lung Disease. Exp Clin Cardiol 2017. [DOI: 10.4172/2155-9880.1000536] [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: 11/09/2022]
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Assad A, Chiron M, Nimal JC, Diop CM. A Comparison of Gamma-Ray Buildup Factors for Water, Iron and Lead using Discrete Ordinates, Moments, and Monte Carlo Methods. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2000.10874937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Assad A, Chiron M, Claude Nimal J, Diop CM, Ridoux P. General Formalism for Calculating Gamma-Ray Buildup Factors in Multilayer Shields into MERCURE-6 Code. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2000.10874935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Willeke F, Assad A, Findeisen P, Schromm E, Grobholz R, von Gerstenbergk B, Mantovani A, Peri S, Friess HH, Post S, von Knebel Doeberitz M, Schwarzbach MHM. Overexpression of a member of the pentraxin family (PTX3) in human soft tissue liposarcoma. Eur J Cancer 2006; 42:2639-46. [PMID: 16959485 DOI: 10.1016/j.ejca.2006.05.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Revised: 05/05/2006] [Accepted: 05/10/2006] [Indexed: 11/21/2022]
Abstract
A unique feature of human soft tissue liposarcoma is a stable (12;16)(q13;p11) translocation observed mainly in myxoid and roundcell liposarcomas. This translocation results in FUS/CHOP fusion transcripts with a corresponding oncogenic protein. We hypothesised that genes downstream of FUS/CHOP might serve as attractive candidates for novel tumour associated antigens. Among a panel of analysed genes, only pentraxin related gene (PTX3) demonstrated high expression in liposarcomas as compared to normal tissues. The analysis of RNA and protein expression demonstrated concordant results. However, the level of RNA and protein overexpression did not correlate in all cases. Finally, PTX3 expression was not related to presence of a FUS/CHOP fusion transcript within the liposarcoma tissues. PTX3 has been associated with adipocyte differentiation and now, additionally, is characterised by a markedly increased expression in human soft tissue liposarcoma. This finding mandates further research efforts to clarify the exact role of PTX3 in liposarcoma oncogenesis.
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Affiliation(s)
- F Willeke
- Department of Surgery, Mannheim University Clinic, University of Heidelberg, Theodor Kutzer Ufer 1-3, 68135 Mannheim, Germany.
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Wall C, Assad A, Aharon G, Dimitri PS, Harris LR. The human oculomotor response to simultaneous visual and physical movements at two different frequencies. J Vestib Res 2002; 11:81-9. [PMID: 11847452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
In order to investigate interactions in the visual and vestibular systems' oculomotor response to linear movement, we developed a two-frequency stimulation technique. Thirteen subjects lay on their backs and were oscillated sinusoidally along their z-axes at between 0.31 and 0.81 Hz. During the oscillation subjects viewed a large, high-contrast, visual pattern oscillating in the same direction as the physical motion but at a different, non-harmonically related frequency. The evoked eye movements were measured by video-oculography and spectrally analysed. We found significant signal level at the sum and difference frequencies as well as at other frequencies not present in either stimulus. The emergence of new frequencies indicates non-linear processing consistent with an agreement-detector system that have previously proposed.
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Affiliation(s)
- C Wall
- Department of Otology & Laryngology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles St. Boston, MA 02114, USA
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Wall C, Assad A, Aharon G, Dimitri P, Harris L. The human oculomotor response to simultaneous visual and physical movements at two different frequencies. J Vestib Res 2001. [DOI: 10.3233/ves-2001-11203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In order to investigate interactions in the visual and vestibular systems' oculomotor response to linear movement, we developed a two-frequency stimulation technique. Thirteen subjects lay on their backs and were oscillated sinusoidally along their z-axes at between 0.31 and 0.81 Hz. During the oscillation subjects viewed a large, high-contrast, visual pattern oscillating in the same direction as the physical motion but at a different, non-harmonically related frequency. The evoked eye movements were measured by video-oculography and spectrally analysed. We found significant signal level at the sum and difference frequencies as well as at other frequencies not present in either stimulus. The emergence of new frequencies indicates non-linear processing consistent with an agreement-detector system that have previously proposed.
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Affiliation(s)
- C. Wall
- Department of Otology & Laryngology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles St. Boston, MA 02114, USA
| | - A. Assad
- Department of Otology & Laryngology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles St. Boston, MA 02114, USA
| | - G. Aharon
- Department of Otology & Laryngology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles St. Boston, MA 02114, USA
| | - P.S. Dimitri
- Department of Otology & Laryngology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles St. Boston, MA 02114, USA
| | - L.R. Harris
- Department of Psychology, York University, Toronto, Ontario M3J 1P3, Canada
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Assad A, Jan C, Lopez de Bertodano M, Beus S. Scaled entrainment measurements in ripple-annular flow in a small tube. Nuclear Engineering and Design 1998. [DOI: 10.1016/s0029-5493(98)00214-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lea MA, Luke A, Assad A, Patel M, Reddy PA. Inhibitory action of orotate, 2-thioorotate and isoorotate on nucleotide metabolism and nucleic acid synthesis in hepatoma cells. Int J Biochem 1992; 24:1453-9. [PMID: 1330764 DOI: 10.1016/0020-711x(92)90071-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
1. The specificity of the action of orotate on hepatoma cells was investigated. 2. Orotic acid and its methyl ester had similar inhibitory effects on the incorporation of [3H]thymidine into DNA of hepatoma cells. 3. In contrast to previous studies in vivo, incubation of rat kidney cells with orotate caused an increase in the ratio of UTP/ATP concentrations that was similar to effects on hepatic cells. 4. Inhibitory effects of 2-thioorotate and isoorotate on metabolism were found to be less selective and required higher concentrations than with orotate.
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Affiliation(s)
- M A Lea
- Department of Biochemistry and Molecular Biology, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark 07103
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Abstract
We developed a computer-based technique to quantify optic nerve head pallor from videographically acquired digitized optic nerve images and tested the ability of pallor measurements to discriminate between normal eyes and eyes with early glaucoma. Corresponding pixel values from images obtained under 540 nm (green) and 640 nm (red) light with a videographic fundus camera were used to quantify optic nerve head pallor. A pallor density histogram was calculated for each eye, and contained values between 0 (red) to 1 (white). A measure of the distribution width of the histogram provided pallor measurements standardized to the measurements of the large veins of the disc. A database of one eye each of 44 normal controls and 70 patients with early open angle glaucoma was used to test the measurements for diagnostic sensitivity and specificity. These standardized pallor measurements did not perform better than absolute pallor measurements to discriminate between normal and glaucomatous eyes. The sensitivity and specificity of standardized pallor measurements (49% and 57%, respectively, for this database) were not as good as those for stereoscopic measurements of disc rim area in the same database (70% and 73%). Pallor measurements of this type do not appear to be sensitive or specific indicators of early glaucoma.
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Affiliation(s)
- A Assad
- Yale University School of Medicine, Department of Ophthalmology and Visual Science, New Haven, CT 06510
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Abstract
The influence of orotic acid on the incorporation of precursors into nucleic acids was studied in mice and rats and in isolated cells. In vivo, orotate levels were modified by two diets which are known to increase the rate of pyrimidine nucleotide synthesis in rat liver. Of these diets, a 1% orotate diet had greater inhibitory effects than an arginine-deficient diet on the incorporation of [3H]orotate into RNA of mouse kidney than mouse liver. This contrasted with the situation in the rat where there was a greater effect in the liver than the kidney. The situation in the rat was more readily interpreted than in the mouse in terms of previously established effects of these diets on ribonucleotide pool sizes. However, studies using [3H]adenosine as a precursor for incorporation into RNA suggested that even in the mouse the effects of orotate were on pool sizes rather than an inhibitory effect on RNA synthesis. The incorporation of [3H]thymidine into DNA was inhibited by orotate to a similar degree in cultured HTC hepatoma cells and a line of rat liver epithelial cells. An effect on DNA synthesis rather than solely on pool sizes was suggested by the observation that the pool size of dTTP was not increased by 5 mM orotate under conditions in which there was a four-fold increase in the level of UTP in HTC cells. An inhibitory effect of orotate on DNA synthesis was further supported by an observation of decreased incorporation of [3H]deoxyadenosine into DNA and a lower rate of cellular proliferation.
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Affiliation(s)
- M A Lea
- Department of Biochemistry and Molecular Biology, UMDNJ, New Jersey Medical School, Newark 07103
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