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Diab H, Malcolm B. Persistent Tinnitus after Inhaled N,N-dimethyltryptamine (DMT). J Psychoactive Drugs 2020; 53:140-145. [PMID: 33242285 DOI: 10.1080/02791072.2020.1847366] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This case report describes a 39-year-old male with remote history of polysubstance use disorder and depression who developed tinnitus after use of inhaled N,N-dimethyltryptamine (DMT). Although development of ear ringing was attributed to use on a single occasion, tinnitus occurred within the context of a larger self-experiment involving weekly microdoses of lysergic acid diethylamide (LSD). Distress and anxiety over the ear ringing prompted evaluation by an audiologist, primary care physician, and consultant psychopharmacologist. Tinnitus persisted for several months, although intensity and ability to cope with symptoms improved over time. A microdose of psilocybin mushrooms exacerbated tinnitus on two separate occasions, after which psychedelics were discontinued. Psychedelics are associated with a range of acute sensory changes including auditory phenomenon, although have not previously been associated with tinnitus in medical literature. Here, we present a probable case of tinnitus associated with DMT use and review potential underlying mechanisms connecting psychedelics and tinnitus.
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Affiliation(s)
- Heba Diab
- Western University of Health Sciences, College of Pharmacy, Pomona, CA, USA
| | - Benjamin Malcolm
- Western University of Health Sciences, College of Pharmacy, Pomona, CA, USA
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Diab H, Ghazy T, Alexiou K, Matschke K, Kappert U. Sutureless versus Catheter-Based Aortic Valve Prosthesis: Hemodynamic Performance and the Effect of Explanting the Native Valve. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- H. Diab
- Department of Cardiac Surgery, Dresden Heart Center, Dresden University of Technology, Dresden, Germany
| | - T. Ghazy
- Department of Cardiac Surgery, Rotenburg Heart Center, Rotenburg a. d. Fulda, Germany
| | - K. Alexiou
- Department of Cardiac Surgery, Dresden Heart Center, Dresden University of Technology, Dresden, Germany
| | - K. Matschke
- Department of Cardiac Surgery, Dresden Heart Center, Dresden University of Technology, Dresden, Germany
| | - U. Kappert
- Department of Cardiac Surgery, Dresden Heart Center, Dresden University of Technology, Dresden, Germany
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Abdellah W, Abdelfattah E, Diab H, Saad E. Removal of Chromium from Liquid Waste by Gamma Aluminum Oxide (γ-Al2O3) Nanoparticles Synthesized Using Citrate Sol-gel Method. Arab Journal of Nuclear Sciences and Applications 2018. [DOI: 10.21608/ajnsa.2018.12728] [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: 10/28/2022]
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Elhawary NA, Seif-Eldin NS, Zaki M, Diab H. Azoospermia factor microdeletions: common tag STSs in infertile men with azoospermia and sever oligospermia from Egypt. BMC Genomics 2014; 15. [PMCID: PMC4075568 DOI: 10.1186/1471-2164-15-s2-p25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- Nasser A Elhawary
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, 21955 Mecca, P.O. Box 57543, Kingdom of Saudi Arabia
- Department of Molecular Genetics, Faculty of Medicine, Medical Genetics Center, Ain Shams University, Cairo, Egypt
| | - Neveen S Seif-Eldin
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Marwa Zaki
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Heba Diab
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Nseir W, Diab H, Mahamid M, Abu-Elheja O, Samara M, Abid A, Mograbi J. Randomised clinical trial: simvastatin as adjuvant therapy improves significantly the Helicobacter pylori eradication rate--a placebo-controlled study. Aliment Pharmacol Ther 2012; 36:231-8. [PMID: 22646167 DOI: 10.1111/j.1365-2036.2012.05161.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 03/22/2012] [Accepted: 05/10/2012] [Indexed: 12/25/2022]
Abstract
BACKGROUND The eradication rate of Helicobacter pylori with standard treatments are decreasing worldwide. AIM To determine whether adding simvastatin as adjuvant to triple regimen in patients with H. pylori infection will improve the eradication rate. METHODS We conducted a double-blind, placebo-controlled, randomised clinical trial comparing a 7-day, triple eradication regimen consisting of two antibiotics (clarithromycin 500 mg and amoxicillin 1 g, all twice per day) plus a proton pump inhibitor (omeprazole 20 mg twice daily) supplemented with simvastatin 20 mg (CAO + S) or a comparable placebo (CAO + P). Both the simvastatin and the placebo were taken orally twice daily for 1 week in 113 patients with H. pylori infection. The presence of H. pylori was determined by positive rapid urease test and histology. Eradication was confirmed by ¹³C-urea breath test at least 1 month after treatment. Adverse effects were assessed by questionnaire. RESULTS A total of 113 patients underwent randomisation. Intention-to-treat analysis (ITT; n = 113) eradication rates were: CAO + S (86%; 95% CI: 78-92%), CAO + P (69%; 95% CI: 64-74%). Per protocol analysis (PP; n = 108) eradication rates were: CAO + S (91%; 95% CI: 84-94%), CAO + P (72%; 95% CI: 65-78%). Eradication rates were higher with CAO + S than CAO + P in PP and ITT (P = 0.03, P = 0.04 respectively). No differences were demonstrated between the two groups concerning compliance or adverse effects. CONCLUSION In this randomised clinical trial simvastatin as adjuvant to standard therapy improves significantly the H. pylori eradication rate.
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Affiliation(s)
- W Nseir
- Department of Internal Medicine, Holy Family Hospital, Faculty of Medicine in the Galilee, Bar-Ilan University, Nazareth, Israel.
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Tall A, Sall AA, Faye O, Diatta B, Sylla R, Faye J, Faye PC, Faye O, Ly AB, Sarr FD, Diab H, Diallo M. [Two cases of Crimean-Congo haemorrhagic fever (CCHF) in two tourists in Senegal in 2004]. Bull Soc Pathol Exot 2009; 102:159-161. [PMID: 19739410] [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: 05/28/2023]
Abstract
Two cases of Crimean-Congo haemorrhagic fever (CCHF) occurred in two French tourists during their visit in Senegal in November 2004. Febrile and hemorrhagic syndrome with ulorrhagia, petechiae, haematemesis, haematomas associated with biological signs of disseminated intramuscular coagulation were observed. For the first case who had a medical evacuation to France before diagnosis, Crimean-Congo virus infection was revealed by laboratory tests performed by the National Reference Center for Hemorrhagic Fevers (NRCHF, Institut Pasteur, Lyon) and secondly by the Centre de Référence OMS sur la Recherche des Arbovirus et des virus des Fièvres Hémorragiques (CRORA) in the Dakar Pasteur Institute (DPI). The second case diagnosed by the CRORA died after clinical deterioration with liver failure and severe haemorrhages. Healthcare workers and family members who had contact with tissue or blood from patients were followed up after the putative exposure either in France or in Senegal.
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Affiliation(s)
- A Tall
- Institut Pasteur de Dakar, BP 220 Dakar, Sénégal.
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Abstract
Disassembly of the yeast V-ATPase into cytosolic V(1) and membrane V(0) sectors inactivates MgATPase activity of the V(1)-ATPase. This inactivation requires the V(1) H subunit (Parra, K. J., Keenan, K. L., and Kane, P. M. (2000) J. Biol. Chem. 275, 21761-21767), but its mechanism is not fully understood. The H subunit has two domains. Interactions of each domain with V(1) and V(0) subunits were identified by two-hybrid assay. The B subunit of the V(1) catalytic headgroup interacted with the H subunit N-terminal domain (H-NT), and the C-terminal domain (H-CT) interacted with V(1) subunits B, E (peripheral stalk), and D (central stalk), and the cytosolic N-terminal domain of V(0) subunit Vph1p. V(1)-ATPase complexes from yeast expressing H-NT are partially inhibited, exhibiting 26% the MgATPase activity of complexes with no H subunit. The H-CT domain does not copurify with V(1) when expressed in yeast, but the bacterially expressed and purified H-CT domain inhibits MgATPase activity in V(1) lacking H almost as well as the full-length H subunit. Binding of full-length H subunit to V(1) was more stable than binding of either H-NT or H-CT, suggesting that both domains contribute to binding and inhibition. Intact H and H-CT can bind to the expressed N-terminal domain of Vph1p, but this fragment of Vph1p does not bind to V(1) complexes containing subunit H. We propose that upon disassembly, the H subunit undergoes a conformational change that inhibits V(1)-ATPase activity and precludes V(0) interactions.
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Affiliation(s)
- Heba Diab
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, New York 13210
| | - Masashi Ohira
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, New York 13210
| | - Mali Liu
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, New York 13210
| | - Ester Cobb
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, New York 13210
| | - Patricia M Kane
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, New York 13210.
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Tall A, Diallo M, Faye O, Diab H, Diatta B, Sall AA. [Crimean-Congo hemorrhagic fever in Senegal]. Med Trop (Mars) 2009; 69:18. [PMID: 19499725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- A Tall
- Institut Pasteur de Dakar, Sénégal.
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Abstract
Yeast mutants lacking vacuolar proton-translocating ATPase (V-ATPase) subunits (vma mutants) were sensitive to several different oxidants in a recent genomic screen (Thorpe, G. W., Fong, C. S., Alic, N., Higgins, V. J., and Dawes, I. W. (2004) Proc. Natl. Acad. Sci. U. S. A. 101, 6564-6569). We confirmed that mutants lacking a V(1) subunit (vma2Delta), V(o) subunit, or either of the two V(o) a subunit isoforms are acutely sensitive to H(2)O(2) and more sensitive to menadione and diamide than wild-type cells. The vma2Delta mutant contains elevated levels of reactive oxygen species and high levels of oxidative protein damage even in the absence of an applied oxidant, suggesting an endogenous source of oxidative stress. vma2Delta mutants lacking mitochondrial DNA showed neither improved growth nor decreased sensitivity to peroxide, excluding respiration as the major source of the endogenous reactive oxygen species in the mutant. Double mutants lacking both VMA2 and components of the major cytosolic defense systems exhibited synthetic sensitivity to H(2)O(2). Microarray analysis comparing wild-type and vma2Delta mutant cells grown at pH 5, permissive conditions for the vma2Delta mutant, indicated high level up-regulation of several iron uptake and metabolism genes that are part of the Aft1/Aft2 regulon. TSA2, which encodes an isoform of the cytosolic thioredoxin peroxidase, was strongly induced, but other oxidative stress defense systems were not induced. The results indicate that V-ATPase activity helps to protect cells from endogenous oxidative stress.
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Affiliation(s)
- Elena Milgrom
- Department of Biochemistry, SUNY Upstate Medical University, Syracuse, New York 13210, USA
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Middleton FA, Pato CN, Gentile KL, McGann L, Brown AM, Trauzzi M, Diab H, Morley CP, Medeiros H, Macedo A, Azevedo MH, Pato MT. Gene expression analysis of peripheral blood leukocytes from discordant sib-pairs with schizophrenia and bipolar disorder reveals points of convergence between genetic and functional genomic approaches. Am J Med Genet B Neuropsychiatr Genet 2005; 136B:12-25. [PMID: 15892139 DOI: 10.1002/ajmg.b.30171] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We performed global RNA transcript analysis and comprehensive gene group analysis of peripheral blood leukocyte (PBL) RNA from two groups of matched sib-pairs that were discordant for either schizophrenia (n = 33 sib-pairs) or bipolar disorder (n = 5 sib-pairs). The pairs chosen for these analyses were selected from families with known patterns of genetic linkage (5q for schizophrenia and 6q for bipolar disorder). At the single gene level, we obtained lists of the transcripts with the most significant changes in expression and from these lists determined those with the highest degree of predictive power for classifying subjects according to diagnosis in these samples. At the gene group level, we comprehensively analyzed pairwise expression changes of more than 4,000 functional groups and cytogenetic locations, and present a novel method of displaying these data that we term "cytogenomic" mapping. Verification of selected changes in expression was performed using quantitative real-time RT-PCR. Our results provide compelling evidence for the utility of analyzing PBL RNA for changes in expression in neuropsychiatric disorders.
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Affiliation(s)
- Frank A Middleton
- Center for Neuropsychiatric Genetics, Upstate Medical University, Syracuse, NY 13210, USA.
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Affiliation(s)
- Frank A Middleton
- Department of Neuroscience and Physiology, State University of New York Upstate Medical University, Syracuse, New York 13210, USA.
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