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Na G, Kwak SH, Jang SH, Noh HE, Kim J, Yang S, Jung J. Supplementary Effect of Choline Alfoscerate on Speech Recognition in Patients With Age-Related Hearing Loss: A Prospective Study in 34 Patients (57 Ears). Front Aging Neurosci 2021; 13:684519. [PMID: 34149400 PMCID: PMC8211767 DOI: 10.3389/fnagi.2021.684519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
To investigate the effect of choline alfoscerate (CA) on hearing amplification in patients with age related hearing loss, we performed a prospective case-control observational study from March 2016 to September 2020. We assessed patients with bilateral word recognition score (WRS) <50% using monosyllabic words. The patients were 65-85 years old, without any history of dementia, Alzheimer's disease, parkinsonism, or depression. After enrollment, all patients started using hearing aids (HA). The CA group received a daily dose of 800 mg CA for 11 months. We performed between-group comparisons of audiological data, including pure tone audiometry, WRS, HA fitting data obtained using real-ear measurement (REM), and the Abbreviated Profile of Hearing Aid benefit scores after treatment. After CA administration, the WRS improved significantly in the CA group (4.2 ± 8.3%), but deteriorated in the control group (-0.6 ± 8.1%, p = 0.035). However, there was no significant between-group difference in the change in pure tone thresholds and aided speech intelligibility index calculated from REM. These findings suggest that the difference in WRS was relevant to central speech understanding rather than peripheral audibility. Therefore, administering oral CA could effectively enrich listening comprehension in older HA users.
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Affiliation(s)
- Gina Na
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea.,Department of Otorhinolaryngology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, South Korea
| | - Sang Hyun Kwak
- Department of Otorhinolaryngology, St. Vincent Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seung Hyun Jang
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Eun Noh
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Jungghi Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - SeungJoon Yang
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Jinsei Jung
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
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Tuboly E, Gáspár R, Ibor MO, Gömöri K, Kiss B, Strifler G, Hartmann P, Ferdinandy P, Bartekova M, Boros M, Görbe A. L-Alpha-glycerylphosphorylcholine can be cytoprotective or cytotoxic in neonatal rat cardiac myocytes: a double-edged sword phenomenon. Mol Cell Biochem 2019; 460:195-203. [PMID: 31280435 PMCID: PMC6745025 DOI: 10.1007/s11010-019-03580-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 06/25/2019] [Indexed: 12/12/2022]
Abstract
l-Alpha-glycerylphosphorylcholine (GPC) is a widely used food supplement. GPC has been shown to exert beneficial effects in several organs; however, the cardiac effects of GPC have yet to be investigated. The aim of the present study was therefore to map out the effects of GPC on cardiac myocytes, with or without ischemia–reperfusion insult. Neonatal rat cardiac myocytes were treated with GPC at 1, 10, 80, and 100 µM concentrations for 15 min, 3 h, or 24 h, respectively. Cell viability by calcein assay and the degree of oxidative stress by DHE (superoxide level) and H2DCF (total ROS accumulation) staining were measured. In separate experiments, cardiomyocytes were pre-treated with the optimal concentration of GPC for 3 h and then cells were exposed to 4 h of simulated ischemia followed by 2 h of reperfusion (SI/R). Cell viability was measured at the end of the SI/R protocol. In normoxic conditions, the 15-min and the 3-h GPC treatment did not affect cell viability, total ROS, and superoxide levels. Under SI/R conditions, the 3-h GPC treatment protected the cardiac myocytes from SI/R-induced cell death and did not alter the level of oxidative stress. The 24-h GPC treatment in normoxic conditions resulted in significant cell death and increased oxidative stress at each concentration. Here we provide the first evidence for the cytoprotective effect of short-term GPC treatment. However, long-term administration of GPC may exert cytotoxicity in a wide concentration range in cardiac myocytes. These results may draw attention to a comprehensive cardiac safety protocol for the testing of GPC.
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Affiliation(s)
- Eszter Tuboly
- Faculty of Medicine, Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Renáta Gáspár
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Miguel Olias Ibor
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Kamilla Gömöri
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Bernadett Kiss
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Gerda Strifler
- Faculty of Medicine, Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Petra Hartmann
- Faculty of Medicine, Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Monika Bartekova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovakia
- Faculty of Medicine, Institute of Physiology, Comenius University in Bratislava, Bratislava, Slovakia
| | - Mihály Boros
- Faculty of Medicine, Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Anikó Görbe
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary.
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.
- Pharmahungary Group, Szeged, Hungary.
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Ciriaco E, Bronzetti E, Ricci A, Amenta F. Influence of ipsilateral lesions of the nucleus basalis magnocellularis and of choline alphoscerate treatment on histochemically reactive zinc stores and on the ultrastructure of the rat frontal cortex. Arch Gerontol Geriatr 1994; 19:303-12. [PMID: 15374276 DOI: 10.1016/0167-4943(94)00576-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/1993] [Revised: 08/05/1994] [Accepted: 08/11/1994] [Indexed: 11/27/2022]
Abstract
The influence of ipsilateral lesions of the nucleus basalis magnocellularis (NBM) and of choline alphoscerate treatment on histochemically reactive zinc stores and on the ultrastructure of the neuropil of layer III of the frontal cortex were investigated in the rat. In control animals a dark-brown staining was developed in the neuropil of layers I-III of the frontal cortex. Lesions of the right NBM caused a marked reduction in the density of sulphide-silver staining in the right frontal cortex 4 weeks post lesion. Moreover, changes in the morphology and in the density of synaptic buttons in the neuropil of layer III of the cerebral cortex were also noticeable. Concomitant treatment for 4 weeks with choline alphoscerate restored the density of sulphide-silver staining in the right frontal cortex and countered in part changes of synaptic buttons of the neuropil of layer III of the frontal cortex. These findings suggest that the loss of cerebrocortical histochemically reactive zinc stores occurring in NBM-lesioned rats is due to the alterations of synaptic contacts in the frontal cortex and that treatment with choline alphoscerate may counter these degenerative changes.
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Affiliation(s)
- E Ciriaco
- Istituto di Anatomia degli Animali Domestici con Istologia ed Embriologia, Università di Messina, Messina, Italy
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Aleppo G, Nicoletti F, Sortino MA, Casabona G, Scapagnini U, Canonico PL. Chronic L-alpha-glyceryl-phosphoryl-choline increases inositol phosphate formation in brain slices and neuronal cultures. PHARMACOLOGY & TOXICOLOGY 1994; 74:95-100. [PMID: 8190709 DOI: 10.1111/j.1600-0773.1994.tb01082.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Repeated, but not single injections of L-alpha-glyceryl-phosphorylcholine (alpha GPC) significantly increased basal [3H]inositol monophosphate (InsP) formation in hippocampal, cortical, and striatal slices of male rats. The effect was dose-dependent and was accompanied by an increased incorporation of [3H]inositol into the phospholipid fraction. Incubation of brain slices with different neurotransmitter antagonists, such as atropine, prazosin, or L-2-amino-4-phosphonobutanoate (L-AP4) did not modify the increase in [3H]InsP formation produced by alpha GPC, suggesting that the effect is not mediated by an increased availability of a specific neurotransmitter. Similar results were obtained in cerebellar and cortico-striatal neurones in primary culture exposed to daily addition of alpha GPC since the second day of maturation in vitro. We suggest that alpha GPC treatment may result in an increased rate of phospholipid synthesis, including the phosphoinositides available for signal transduction at central nervous system level.
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Affiliation(s)
- G Aleppo
- Institute of Pharmacology, University of Catania School of Medicine, Italy
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Bronzetti E, Felici L, Amenta F. Effect of ipsilateral lesioning of the nucleus basalis magnocellularis and of L-alpha-glyceryl phosphorylcholine treatment on choline acetyltransferase and acetylcholinesterase in the rat fronto-parietal cortex. Neurosci Lett 1993; 164:47-50. [PMID: 8152614 DOI: 10.1016/0304-3940(93)90854-e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The present study assesses the effect of unilateral lesions of the nucleus basalis magnocellularis (NBM) and of treatment with L-alpha-glyceryl phosphorylcholine (GFC, choline alfoscerate) on the acetylcholine-synthesizing (choline acetyltransferase (ChAT)), and acetylcholine-degradating (acetylcholinesterase (AChE)) enzymes in the rat fronto-parietal cortex ipsilateral to the lesion. Ibotenic acid injections in the right NBM area caused a significant decrease of both ChAT and AChE activities as well as of histochemically reactive stores of AChE in the right fronto-parietal cortex. Treatment with GFC restored in part the loss of ChAT and AChE activities. Moreover, AChE reactivity is restored in the fronto-parietal cortex of NBM-lesioned rats treated with GFC. GFC is a precursor in the biosynthesis of brain phospholipids which increases the bioavailability of acetylcholine in the nervous tissue. The possible relevance of the restoration of the marker enzymes of cholinergic neurotransmission by GFC in an animal model of cholinergic hypofunction is considered.
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Affiliation(s)
- E Bronzetti
- Dipartimento di Scienze Cardiovascolari e Respiratorie, Universitá La Sapienza, Roma, Italy
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