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Steimle M, King B, Gooch A, Baird J, Yee J, Pascucci V, Steenblik J, Carlson M, Ockerse P. 394 A Pilot Study of Coughing Into the Shirt to Disrupt Respiratory Pathogen Transmission. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.409] [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: 12/01/2022]
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Gooch A, Sizochenko N, Rasulev B, Gorb L, Leszczynski J. In vivo toxicity of nitroaromatics: A comprehensive quantitative structure-activity relationship study. Environ Toxicol Chem 2017; 36:2227-2233. [PMID: 28169452 DOI: 10.1002/etc.3761] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/01/2016] [Accepted: 02/06/2017] [Indexed: 06/06/2023]
Abstract
The toxicity data of 90 nitroaromatic compounds related to their 50% lethal dose concentration for rats (LD50) were analyzed to develop quantitative structure-activity relationship (QSAR) models. Quantum-chemically calculated descriptors together with molecular descriptors generated by DRAGON, PaDEL, and HiT-QSAR software were utilized to build QSAR models. Quality and validity of the models were determined by internal and external validation techniques. The results show that the toxicity of nitroaromatic compounds depends on various factors, such as the number of nitro-groups, the topological state, and the presence of certain structural fragments. The developed models based on the largest (to date) dataset of nitroaromatics in vivo toxicity showed a good predictive ability. The results provide important input that could be applied in a preliminary assessment of nitroaromatic compounds' toxicity to mammals. Environ Toxicol Chem 2017;36:2227-2233. © 2017 SETAC.
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Affiliation(s)
- Aminah Gooch
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
| | - Natalia Sizochenko
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
| | - Bakhtiyor Rasulev
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota, USA
| | - Leonid Gorb
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
- HX5, Vicksburg, Mississippi, USA
| | - Jerzy Leszczynski
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
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Gooch A, Sizochenko N, Sviatenko L, Gorb L, Leszczynski J. A quantum chemical based toxicity study of estimated reduction potential and hydrophobicity in series of nitroaromatic compounds. SAR QSAR Environ Res 2017; 28:133-150. [PMID: 28235392 DOI: 10.1080/1062936x.2017.1286687] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 01/22/2017] [Indexed: 06/06/2023]
Abstract
Nitroaromatic compounds and the products of their degradation are toxic to bacteria, cells and animals. Various studies have been carried out to better understand the mechanism of toxicity of aromatic nitrocompounds and their relationship to humans and the environment. Recent data relate cytotoxicity of nitroaromatic compounds to their single- or two-electron enzymatic reduction. However, mechanisms of animal toxicity could be more complex. This work investigates the estimated reduction and oxidation potentials of 34 nitroaromatic compounds using quantum chemical approaches. All geometries were optimized with density functional theory (DFT) using the solvation model based on density (SMD) and polarizable continuum model (PCM) solvent model protocols. Quantitative structure-activity/property (QSAR/QSPR) models were developed using descriptors obtained from quantum chemical optimizations as well as the DRAGON software program. The QSAR/QSPR equations developed consist of two to four descriptors. Correlations have been identified between electron affinity (ELUMO) and hydrophobicity (log P).
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Affiliation(s)
- A Gooch
- a Interdisciplinary Center for Nanotoxicity, Jackson State University , Jackson , USA
| | - N Sizochenko
- a Interdisciplinary Center for Nanotoxicity, Jackson State University , Jackson , USA
| | - L Sviatenko
- a Interdisciplinary Center for Nanotoxicity, Jackson State University , Jackson , USA
- b Department of Organic Chemistry , Oles Honchar Dnipropetrovsk National University , Dnipropetrovsk , Ukraine
| | - L Gorb
- a Interdisciplinary Center for Nanotoxicity, Jackson State University , Jackson , USA
- c HX5 , Vicksburg , USA
| | - J Leszczynski
- a Interdisciplinary Center for Nanotoxicity, Jackson State University , Jackson , USA
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Abstract
A young lady with a rare Bombay (Oh) blood group had two successive uneventful pregnancies. Her serum contained a potent high-titre anti-H and serological as well as chemiluminescence tests, suggesting that the antibody was haemolytic. Her husband was of the normal H status. Theoretically, both babies should have been positive for the H antigen and should have suffered from haemolytic disease of the newborn. This apparent conundrum could be owing to the weak expression of the H antigens on the infant red cells.
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Affiliation(s)
- S Bhattacharya
- SpR Haematology, Christie Hospital, Manchester, Bristol, UK
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Lomas C, Grässmann W, Ford D, Watt J, Gooch A, Jones J, Beolet M, Stern D, Wallace M, Tippett P. FPTT is a low-incidence Rh antigen associated with a "new" partial Rh D phenotype, DFR. Transfusion 1994; 34:612-6. [PMID: 7519797 DOI: 10.1046/j.1537-2995.1994.34794330017.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Several Rh D phenotypes with partial D antigens are recognized. Some partial D antigens are associated with low-incidence Rh antigens. New partial D antigens are revealed by an atypical pattern of reactions with anti-D. STUDY DESIGN AND METHODS The reactions of D variant cells with panels of monoclonal anti-D and with antibodies to low-incidence antigens were compared to those of known D categories to identify a new Rh D phenotype. The inheritance of partial D antigens was studied by Rh phenotyping of the families of the probands. Standard serologic methods were used and family data were analyzed. RESULTS A new Rh D phenotype, to be called DFR, was identified in 17 probands, two of whom had made anti-D. The partial D antigen carries epD3, epD4, and epD9 and lacks epD8. The presence of other D epitopes is ambiguous; different answers were obtained for the same sample with different monoclonal anti-D of the same apparent epitope specificity. The immunoglobulin class of the anti-D was important: IgG were more successful than IgM monoclonal anti-D in detecting the partial D of DFR. Family studies showed that DFR traveled with Ce more frequently than with cE. The low-incidence antigen FPTT (International Society of Blood Transfusion number 700048) was found on all DFR samples. Family studies demonstrated that FPTT is, as suspected, part of the complex Rh system. CONCLUSION The partial D of the Rh D phenotype, DFR, is recognized by its pattern of reactions with monoclonal anti-D and its association with the low-incidence antigen FPTT, FPTT has now been numbered Rh50.
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Affiliation(s)
- C Lomas
- Medical Research Council Blood Group Unit, London, UK
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Gooch A, Lee D. Pooling clinical samples--a cautionary report. Med Lab Sci 1992; 49:151. [PMID: 1487983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Gooch A, McNeill D. A liquid phase enzyme antibody screening method for use with a photometric microplate haemagglutination reader. Med Lab Sci 1988; 45:279-81. [PMID: 3210937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Fernandez J, Chang K, Gooch A, Lemole GM, Yang SS. Anatomic and clinical analysis of 96 Beall prostheses explanted over a 13-year period. Chest 1983; 83:632-7. [PMID: 6831952 DOI: 10.1378/chest.83.4.632] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Over 13 years, 96 Beall prostheses (80 Teflon, 16 Pyrolite) explanted at surgery were examined for durability, material wear, and clinical symptoms leading to surgical indication for excision were evaluated. The Teflon valves showed progressive disc wear and notching and two cases of disc escape from the cage; the Pyrolite discs were intact in all prostheses. The Dacron-Velour covering common to both types showed dehiscence at the inlet, significantly more severe after the third implant year in the Teflon (p less than 0.005) than in the Pyrolite prostheses. Sixty-nine (85 percent) cases with Teflon valves showed clinical manifestations of congestive heart failure due to prosthetic dysfunction; in 50 there was significant hemolytic anemia. Seven (44 percent) of the 16 Pyrolite disc valves were excised primarily because of dysfunction. The degree of hemolysis with the Pyrolite valves was usually mild. These data clearly suggested the advisability of early excision of the Beall Teflon prostheses in symptomatic patients and a close follow-up in patients with the Pyrolite models.
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Morse D, Patel A, Gooch A, Cuasay RS, Lemole GM. Removal of unnecessary pacemakers. J Med Soc N J 1980; 77:877-81. [PMID: 6937674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Fernandez J, Samuel A, Yang SS, Gooch A, Maranhao V, Lemole GM, Goldberg H. Late thrombosis of the aortic Bjork-Shiley prosthesis. Its clinical recognition and management. Chest 1976; 70:12-6. [PMID: 1277922 DOI: 10.1378/chest.70.1.12] [Citation(s) in RCA: 43] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Seven cases of massive thrombosis of an aortic Bjork-Shiley prosthesis were encountered among 433 valvular implants. Four patients died before treatment could be instituted, and three underwent repeat surgery successfully. Anticoagulation therapy was probably well maintained in four, and poorly maintained in three patients. These cases illustrated the need for a high index of suspicion and prompt recognition of this complication in patients with Bjork-Shiley prostheses. The diagnosis of massive thrombosis should be suspected with the rapid onset of (1) signs of congestive heart failure, (2) absence or attenuation of valvular clicks, (3) aortic regurgitation, or (4) hemolytic anemia. Salvage of these patients requires emergency replacement of the thrombosed prosthesis or removal of the thrombus.
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Fermandez J, Morse D, Spagna P, Lemole G, Gooch A, Yang SS, Maranhao V. Results of mitral valve replacement with the Beall prosthesis in 209 patients. J Thorac Cardiovasc Surg 1976; 71:218-25. [PMID: 1246147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this 3 year study of 209 patients who underwent mitral valve replacement with the newer Beall prostheses (Models 104 and 105) the operative mortality rate was 5.2 per cent. None of these deaths was related to the valve. This prosthesis features a larger frustrum area and a "turtle-neck" sewing ring which permits its rapid insertion with a continuous suture technique. Of the 20 (9.5 per cent) late deaths, two were due to thrombosis of the valve. Among the 178 survivors, 17 developed thromboembolic complications; however, 10 of these patients recovered. Late clinical results have been quite satisfactory in over 90 per cent of the survivors. In the 15 patients who underwent hemodynamic studies postoperatively, the cardiac index and pulmonary artery pressure showed significant improvement; however, they still had transvalvular gradients at rest. The improvement in the design of this prosthesis has been an important factor in lowering the operative risk and improving the late results of mitral valve replacement.
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Farhat K, Nakhjavan K, Cope C, Yazdanfar S, Fernandez J, Gooch A, Goldberg H. Iatrogenic arteriovenous fistula: a complication of percutaneous subclavian vein puncture. Chest 1975; 67:480-2. [PMID: 1122779 DOI: 10.1378/chest.67.4.480] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A case of iatrogenic subclavian arteriovenous fistula is reported. An intracath had been inserted percutaneously into the left subclavian vein to monitor the central venous pressure during aortic valve surgery. On the second postoperative day a thrill and continuous murmur were detected at the left subclavian region. Left subclavian arteriogram and catheterization studies confirmed the diagnosis of subclavian arteriovenous fistula. The lesion was treated surgically with satisfactory results.
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Furuhjelm U, Myllylä G, Nevanlinna HR, Nordling S, Pirkola A, Gavin J, Gooch A, Sanger R, Tippett P. The red cell phenotype En(a-) and anti-Ena: serological and physicochemical aspects. Vox Sang 1969; 17:256-78. [PMID: 4982653 DOI: 10.1111/j.1423-0410.1969.tb00396.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Schneider W, Tippett P, Gooch A. The antigen Pk in a German family. Vox Sang 1969; 16:67-8. [PMID: 5766101 DOI: 10.1111/j.1423-0410.1969.tb04717.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Massumi RA, Gooch A. Chagas' myocarditis. Arch Intern Med 1965; 116:531-6. [PMID: 4953682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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