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Farnam A, Mehrara A, Aghayari Sheikh Neshin S, Zamanlu M, Nazari MA, Hassanzadeh M, Dadashzadeh H, Nouri-Vaskeh M. Psychophysiological Characteristics of Aggression Associated with Depression before and after Successful Treatment with Sertraline: A Clinical Trial Study. Pharm Sci 2020. [DOI: 10.34172/ps.2020.22] [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: 11/09/2022] Open
Abstract
Background: Depression associated with aggression can lead to violent behaviors. The present study was aimed to determine how sertraline, a standard medication for depression treatment, can efficiently decrease aggression and affect psychophysiological parameters in patients with depression. Methods: Patients with depression and aggression were included in a six-week trial with sertraline (50 100 mg/day). Depression diagnosis was confirmed by the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, Text Revision (DSM-IV-TR). Depression severity before and after treatment was assessed using Beck Depression Inventory (BDI). Aggression was evaluated by Spielberger’s State-Trait Anger Expression Inventory-2 (STAXIII). The BDI and STAXI-II were finally applied to evaluate the effectiveness of treatment. For each patient, peripheral and central psychophysiological parameters were recorded using peripheral biofeedback apparatus and electroencephalogram in the initial and final stages of treatment. These recordings were attempted to assess variations of the autonomic nervous system and electrocortical activity in response to treatment. Results: Depressive and aggressive symptoms decreased significantly over the six-week treatment period, as measured by BDI and STAXI-II. Significant changes in some of the peripheral and central psychophysiological variables were observed. Sensorimotor rhythm (SMR)/theta ratio (p=0.01) have decreased during a task, delta (p=0.02) and theta (p=0.008) wave activity and theta/alpha ratio (p=0.01) have increased during task, and theta/beta ratio has increased during both rest and task (p=0.02 for both). Among peripheral psychophysiological variables, skin conductance during task decreased significantly (p=0.03). Conclusion: Several numbers of psychophysiological parameters were influenced significantly after successful pharmacotherapy of aggressiveness in patients with depression.
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Affiliation(s)
- Alireza Farnam
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arezoo Mehrara
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Masumeh Zamanlu
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ali Nazari
- Cognitive Neuroscience Laboratory, Department of Psychology, University of Tabriz, Tabriz, Iran
| | - Mohammadbagher Hassanzadeh
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Dadashzadeh
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Nouri-Vaskeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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2
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Ghadir MR, Ebrazeh A, Khodadadi J, Zamanlu M, Shams S, Nasiri M, Koohpaei A, Abbasinia M, Sharifipour E, Golzari SE. The COVID-19 Outbreak in Iran; The First Patient with a Definite Diagnosis. Arch Iran Med 2020; 23:503-504. [PMID: 32657602 DOI: 10.34172/aim.2020.48] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022]
Abstract
The novel coronavirus, formerly named as 2019 novel coronavirus (2019-nCov) caused a rapidly spreading epidemic of severe acute respiratory syndrome (SARS) in Wuhan, China and thereafter, progressed globally to form a pandemic of coronavirus disease 2019 (COVID-19) in numerous countries; and now confirmed cases are reported from several provinces of Iran. Now various medical centers, clinicians and researchers around the world share their data and experiences about COVID-19 in order to participate in the global attempt of controlling the pandemic. The current report investigates the clinical presentations and paraclinical findings of the first confirmed cases and mortalities in the initiation of the outbreak of COVID-19 in Iran.
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Affiliation(s)
- Mohammad Reza Ghadir
- Gastroenterology and Hepatology Diseases Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Ali Ebrazeh
- Department of Public Health, Faculty of Health, Qom University of Medical Sciences, Qom, Iran
| | - Javad Khodadadi
- Department of Infectious Diseases, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Masumeh Zamanlu
- Neuroscience Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Saeed Shams
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Maryam Nasiri
- Department of Infectious Diseases, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Alireza Koohpaei
- Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran
| | - Mohammad Abbasinia
- Department of Nursing, Faculty of Nursing and Midwifery, Qom University of Medical Sciences, Qom, Iran
| | - Ehsan Sharifipour
- Neuroscience Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Samad Ej Golzari
- Department of Anesthesiology and Intensive Care Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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3
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Zamanlu M, Eskandani M, Barar J, Jaymand M, Pakchin PS, Farhoudi M. Enhanced thrombolysis using tissue plasminogen activator (tPA)-loaded PEGylated PLGA nanoparticles for ischemic stroke. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101165] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Khamnei S, Sadat-Ebrahimi SR, Salarilak S, Savadi Oskoee S, Houshyar Y, Shakouri SK, Salekzamani Y, Zamanlu M. Manifestation of hemispheric laterality in chewing side preference and handedness. ACTA ACUST UNITED AC 2019; 9:189-193. [PMID: 31508334 PMCID: PMC6726748 DOI: 10.15171/bi.2019.23] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 11/03/2018] [Accepted: 11/11/2018] [Indexed: 11/09/2022]
Abstract
Introduction: Humans manifest a behavioral inclination towards more utility of one side of the body, in relation with the dominant hemisphere of the brain. The current investigation assessed handedness together with chewing preference which have not been evaluated in various food textures before. Methods: Nineteen young and healthy volunteers chewed hard (walnut) and soft (cake) foods, during surface electromyography recording from masseter muscles. The side of the first and all chews in the two food types were determined and compared with the side of the dominant hand. Results: Results indicated the two lateralities in the same side considerably (60%-70%), implying the solidarity in the control of the dominant hemisphere of the brain. The unilaterality was more prominent in the assessment of all chews in hard food, with higher statistical agreement and correlation. Conclusion: Thereupon masticatory preference is found with probable origins in the dominant hemisphere of the brain.
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Affiliation(s)
- Saeed Khamnei
- Department of Physiology, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Seyyed-Reza Sadat-Ebrahimi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shaker Salarilak
- Public Health Department, Faculty of Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Siavash Savadi Oskoee
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Houshyar
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Kazem Shakouri
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yaghoub Salekzamani
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masumeh Zamanlu
- Self-awareness Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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5
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Sadaie MR, Farhoudi M, Zamanlu M, Aghamohammadzadeh N, Amouzegar A, Rosenbaum RE, Thomas GA. What does the research say about androgen use and cerebrovascular events? Ther Adv Drug Saf 2018; 9:439-455. [PMID: 30364888 DOI: 10.1177/2042098618773318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 03/29/2018] [Indexed: 12/21/2022] Open
Abstract
Many studies have investigated the benefits of androgen therapy and neurosteroids in aging men, while concerns remain about the potential associations of exogenous steroids and incidents of cerebrovascular events and ischemic stroke (IS). Testosterone is neuroprotective, neurotrophic and a potent stimulator of neuroplasticity. These benefits are mediated primarily through conversion of a small amount of testosterone to estradiol by the catalytic activity of estrogen synthetase (aromatase cytochrome P450 enzyme). New studies suggest that abnormal serum levels of the nonaromatized potent metabolite of testosterone, either high or low dihydrotestosterone (DHT), is a risk factor for stroke. Associations between pharmacologic androgen use and the incidence of IS are questionable, because a significant portion of testosterone is converted to DHT. There is also insufficient evidence to reject a causal relationship between the pro-testosterone adrenal androgens and incidence of IS. Moreover, vascular intima-media thickness, which is a predictor of stroke and myocardial symptoms, has correlations with sex hormones. Current diagnostic and treatment criteria for androgen therapy for cerebrovascular complications are unclear. Confounding variables, including genetic and metabolic alterations of the key enzymes of steroidogenesis, ought to be considered. Information extracted from pharmacogenetic testing may aid in expounding the protective-destructive properties of neurosteroids, as well as the prognosis of androgen therapy, in particular their cerebrovascular outcomes. This investigative review article addresses relevant findings of the clinical and experimental investigations of androgen therapy, emphasizes the significance of genetic testing of androgen responsiveness towards individualized therapy in post-IS injuries as well as identifying pertinent questions.
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Affiliation(s)
| | - Mehdi Farhoudi
- Neurosciences Research Center (NSRC), Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masumeh Zamanlu
- Neurosciences Research Center (NSRC), Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasser Aghamohammadzadeh
- Department of Endocrinology, Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atieh Amouzegar
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Gary A Thomas
- Penn State Hershey Neurology, Penn State University, PA, USA
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Farajdokht F, Farhoudi M, Majdi A, Zamanlu M, Sadigh-Eteghad S, Vahedi S, Mahmoudi J. Testosterone May Hold Therapeutic Promise for the Treatment of Ischemic Stroke in Aging: A Closer Look at Laboratory Findings. Adv Pharm Bull 2018; 9:48-55. [PMID: 31011557 PMCID: PMC6468219 DOI: 10.15171/apb.2019.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 12/20/2018] [Accepted: 12/22/2018] [Indexed: 12/22/2022] Open
Abstract
Male sex is more prone to cerebrovascular disorders, yet the exact role of androgens in cerebral
ischemia remains unclear. Here we reviewed current understanding of testosterone (TES)
neuroprotective activity against ischemic stroke and mechanisms underlying these effects in
aging. TES may exert a neuroprotective effect in aging through pathways including inhibition of
oxidant molecules production, enhancing the enzymatic antioxidant capacity of the brain and
modulation of apoptotic cell death. Given this, a better understanding of the neuroprotective
roles of TES may propose an effective therapeutic strategy to improve the quality of life and
decrease androgen-related cerebrovascular problems in the aging men.
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Affiliation(s)
- Fereshteh Farajdokht
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Farhoudi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Majdi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masumeh Zamanlu
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Vahedi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
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7
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Zamanlu M, Farnam A. Personality disorders: The reformed classification in international classification of Diseases-11 (ICD-11). Indian J Soc Psychiatry 2018. [DOI: 10.4103/ijsp.ijsp_26_18] [Citation(s) in RCA: 1] [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: 11/04/2022] Open
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8
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Zamanlu M, Eskandani M, Mohammadian R, Entekhabi N, Rafi M, Farhoudi M. Spectrophotometric analysis of thrombolytic activity: SATA assay. ACTA ACUST UNITED AC 2017; 8:31-38. [PMID: 29713600 PMCID: PMC5915706 DOI: 10.15171/bi.2018.05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/28/2017] [Accepted: 10/31/2017] [Indexed: 12/03/2022]
Abstract
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Introduction:
Measurement of thrombolytic activity is crucial for research and development of novel thrombolytics. It is a key factor in the assessment of the effectiveness of conventionally used thrombolytic therapies in the clinic. Previous methods used for the assessment of thrombolytic activity are often associated with some drawbacks such as being costly, time-consuming, complex with low accuracy. Here, we introduce a simple, economic, relatively accurate and fast method of spectrophotometric analysis of thrombolytic activity (SATA) assay, standardized by tissue plasminogen activator (tPA), which can quantitatively measure in vitro thrombolytic activity.
Methods:
Blood clots were formed, uniformly, by mixing citrated whole blood with partial thromboplastin time (PTT) reagent, together with calcium chloride. Then, designated concentrations of tPA were added to the samples, and the released red blood cells from each clot were quantified using spectrophotometry (λmax=405nm) as an indicator of thrombolytic activity. The accuracy of the method was tested by assessment of dose-responsibility against R2 value obtained by linear equation and measurement of the limit of detection (LOD) and limit of quantification (LOQ). The SATA assay was validated in comparison with some currently used techniques.
Results:
A linear relationship was obtained between different concentrations of tPA versus the spectrophotometric absorbance of the related dilutions of lysed clots, at λmax=405nm. Calculated R2 values were greater than 0.9; with LOD of 0.90 µg/mL of tPA (436.50IU) and LOQ of 2.99 µg/mL of tPA (1450.15IU).
Conclusion:
Conclusively, the SATA assay is a very simple quantitative method with repeatable and reproducible results for estimating the potency of an unknown thrombolytic agent, and calculating the activity as delicate as 1 µg/mL of tPA (485 IU/mL of thrombolytic dose).
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Affiliation(s)
- Masumeh Zamanlu
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Mohammadian
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazila Entekhabi
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Mohammad Rafi
- Department of Neurology, Jefferson Medical College, Philadelphia, Pennsylvanian, USA
| | - Mehdi Farhoudi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz, Iran
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9
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Zamanlu M, Farhoudi M, Eskandani M, Mahmoudi J, Barar J, Rafi M, Omidi Y. Recent advances in targeted delivery of tissue plasminogen activator for enhanced thrombolysis in ischaemic stroke. J Drug Target 2017; 26:95-109. [PMID: 28796540 DOI: 10.1080/1061186x.2017.1365874] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 12/19/2022]
Abstract
Tissue plasminogen activator (tPA) is the only FDA approved medical treatment for the ischaemic stroke. However, it associates with some inevitable limitations, including: short therapeutic window, extremely short half-life and low penetration in large clots. Systemic administration may lead to complications such as haemorrhagic conversion in the brain and relapse in the form of re-occlusion. Furthermore, ultrasound has been utilised in combination with contrast agents, echogenic liposome, microspheres or nanoparticles (NPs) carrying tPA for improving thrombolysis - an approach that has resulted in slight improvement of tPA delivery and facilitated thrombolysis. Most of these delivery systems are able to extend the circulating half-life and clot penetration of tPA. Various technologies employed for ameliorated thrombolytic therapy are in different phases, some are in final steps for clinical applications while some others are under investigations for their safety and efficacy in human cases. Here, recent progresses on the thrombolytic therapy using novel nano- and micro-systems incorporating tPA are articulated. Of these, liposomes and microspheres, polymeric NPs and magnetic nanoparticles (MNPs) are discussed. Key technologies implemented for efficient delivery of tPA and advanced thrombolytic therapy and their advantages/disadvantages are further expressed.
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Affiliation(s)
- Masumeh Zamanlu
- a Neurosciences Research Center (NSRC), Faculty of Medicine , Tabriz University of Medical Sciences , Tabriz , Iran.,b Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mehdi Farhoudi
- a Neurosciences Research Center (NSRC), Faculty of Medicine , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Morteza Eskandani
- b Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Javad Mahmoudi
- a Neurosciences Research Center (NSRC), Faculty of Medicine , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Jaleh Barar
- b Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute , Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Pharmaceutics, Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammad Rafi
- d Department of Neurology, Sidney Kimmel College of Medicine , Thomas Jefferson University , Philadelphia , PA , USA
| | - Yadollah Omidi
- b Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute , Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Pharmaceutics, Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
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Khamnei S, Zamanlu M, Shakouri SK, Oskoee SS, SalariLak S, Houshyar Y, Salekzamani Y. Mastication Patterns in Humans: Gender Differences. NEUROPHYSIOLOGY+ 2017. [DOI: 10.1007/s11062-017-9612-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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11
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Torabzadeh N, Asadnia S, Azar FS, Zamanlu M, Mohammadi NAVA. EHMTI-0365. The effectiveness of health training on improving sleep quality, and reduction of the symptoms of migraine headaches in individuals with multiple sclerosis. J Headache Pain 2014. [PMCID: PMC4182222 DOI: 10.1186/1129-2377-15-s1-j14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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12
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Hosseinlou A, Khamnei S, Zamanlu M. Voluntary drinking versus imposed drinking in the methodology of investigations about the drinking-induced thermoregulatory sweating. Int J Clin Exp Med 2014; 7:3757-3762. [PMID: 25419429 PMCID: PMC4238478] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 08/16/2014] [Indexed: 06/04/2023]
Abstract
UNLABELLED Studies have shown that dehydrated humans or animals in a warm environment begin to sweat within seconds to minutes after drinking. This phenomenon is one of the drinking-induced thermoregulatory responses; being investigated from different aspects. Our objective is to show the difference of voluntary drinking and imposed drinking in the methodology of these experiments. Six healthy subjects 23.7 ± 0.6 yr old and 80.7 ± 5.7 kg wt were dehydrated by performing mild exercise (ergometer cycling) in a hot and humid chamber (38-40°C, 20-28% relative humidity). We incorporated two protocols: after dehydration, subjects were allowed to drink water with 1) imposed volumes of 1, 3, 5 ml/kg and 2) voluntary volumes; on four separate days. The sweating rate was measured on the forehead area before and after drinking. Sweating increased markedly just a few minutes after the onset of drinking. The mean sweat rates of the imposed volumes of 1, 3, 5 ml/Kg were 0.33 ± 0.15, 0.31 ± 0.17, 0.47 ± 0.21 respectively and for the voluntary volume it was 0.54 ± 0.19. The mean intake in the voluntary trial was 6.58 ± 1.14 ml/Kg, more than the imposed volume of 5 ml/Kg. The trend of the rate of the sweating response in the imposed trials was distinct from the response in the voluntary trial. CONCLUSION There exists a difference between voluntary drinking and imposed drinking in the sweating response that follows rehydration. So it is suggested to use the methods of voluntary drinking in the investigations of this phenomenon, to reveal the natural events that happen in the actual circumstances.
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Affiliation(s)
| | | | - Masumeh Zamanlu
- Neurosciences Research Center (NSRC), Student Research Committee, Tabriz University of Medical SciencesTabriz, Iran
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13
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Hosseinlou A, Khamnei S, Zamanlu M. The effect of water temperature and voluntary drinking on the post rehydration sweating. Int J Clin Exp Med 2013; 6:683-687. [PMID: 24040477 PMCID: PMC3762624] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
During heat stress and dehydration, thermoregulation is partly suppressed to save body fluid and circulation. Drinking induces the recovery of thermoregulatory responses including sweating. Our objective is to investigate the effect of water temperature and voluntary drinking on the extent of the drinking-induced sweating. Six healthy subjects 23.7 ± 0.6 yr old and 80.7 ± 5.7 kg wt were dehydrated by performing mild exercise (ergometer cycling) in a hot and humid chamber (38-40°C, 20-28% relative humidity). After dehydration, subjects were allowed to drink water with temperatures of 5, 16, 26, 58°C on four separate days. The sweating rate was measured on the forehead area before and after drinking. Also, blood samples were collected during the experiments and plasma osmolality was measured. Sweating increased markedly just a few minutes after the onset of drinking. The rate of this response was lower in ingested water temperature of 5°C (0.43 ± 0.03 g, p = 0.000). Different intake occurred with different water temperatures (respectively 4.2, 6.4, 3.1, 1.8 ml/kg). Water at 16°C induced higher intake (6.4 ml/kg) together with lower sweating (0.54 ± 0.03 g), which can result in optimum level of hydration. Conclusion- When dehydrated subjects drink water with different temperatures, there are different sweating responses together with different voluntary intakes. According to our results, consuming 16°C water, cool tap water, could be suggested in dehydration.
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Affiliation(s)
| | - Saeed Khamnei
- Department of Physiology, Azad Islamic University, Tabriz BranchTabriz, Iran
| | - Masumeh Zamanlu
- Neuroscience Research Center, Student Research Committee, Tabriz University of Medical SciencesTabriz, Iran
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14
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Zamanlu M, Khamnei S, SalariLak S, Oskoee SS, Shakouri SK, Houshyar Y, Salekzamani Y. Chewing side preference in first and all mastication cycles for hard and soft morsels. Int J Clin Exp Med 2012; 5:326-331. [PMID: 22993653 PMCID: PMC3443888] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 08/02/2012] [Indexed: 06/01/2023]
Abstract
Preferred chewing side is a still controversial matter and various methods used have yielded some inconsistencies. The aim of this study is to compare the preference determined in different conditions. Nineteen healthy subjects were offered hard (walnut) and soft (cake) foods, while the electromyography was recorded from their masseter muscles, in 2009 in the Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical Sciences, Tabriz, Iran. Four occurrences were determined as the side of the first chews/all chews in the two food types, and then analyzed for correlations and agreements. For hard food 73.68% and for soft food 57.89% of the subjects showed preference. The comparison of all chews showed a highly significant preference towards the right side in both food types (p=0.000 & 0.003). There was both correlation and agreement between the first chew preferences in both food types, and an agreement between the first and all chew preferences in the hard food. Therefore, there seems to exist some laterality in mastication, which is more explicit when using hard food and assessing all chews.
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Affiliation(s)
- Masumeh Zamanlu
- Medical student, Research Center of Physical Medicine and Rehabilitation, Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran, and Department of Epidemiology and Biostatistics, Faculty of Medicine, Urmia University of Medical SciencesUrmia, Iran
| | - Saeed Khamnei
- Physiology Department, Islamic Azad University, Tabriz Branch, Tabriz, Iran, Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical SciencesTabriz, Iran
| | - Shaker SalariLak
- Public health Department, Faculty of Medicine, Islamic Azad University, Tabriz BranchTabriz, Iran
| | - Siavash Savadi Oskoee
- Dental and Periodontal Research Center, Tabriz University of Medical SciencesTabriz, Iran
| | - Seyed Kazem Shakouri
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical SciencesTabriz, Iran
| | - Yousef Houshyar
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical SciencesTabriz, Iran
| | - Yaghoub Salekzamani
- Research Center of Physical Medicine and Rehabilitation, Tabriz University of Medical SciencesTabriz, Iran
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15
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Khamnei S, Hosseinlou A, Zamanlu M. Water temperature, voluntary drinking and fluid balance in dehydrated taekwondo athletes. J Sports Sci Med 2011; 10:718-24. [PMID: 24149564 PMCID: PMC3761501] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 10/12/2011] [Indexed: 06/02/2023]
Abstract
Voluntary drinking is one of the major determiners of rehydration, especially as regards exercise or workout in the heat. The present study undertakes to search for the effect of voluntary intake of water with different temperatures on fluid balance in Taekwondo athletes. Six young healthy male Taekwondo athletes were dehydrated by moderate exercise in a chamber with ambient temperature at 38-40°C and relative humidity between 20-30%. On four separate days they were allowed to drink ad libitum plane water with the four temperatures of 5, 16, 26, and 58°C, after dehydration. The volume of voluntary drinking and weight change was measured; then the primary percentage of dehydration, sweat loss, fluid deficit and involuntary dehydration were calculated. Voluntary drinking of water proved to be statistically different in the presented temperatures. Water at 16°C involved the greatest intake, while fluid deficit and involuntary dehydration were the lowest. Intake of water in the 5°C trial significantly correlated with the subject's plasma osmolality change after dehydration, yet it showed no significant correlation with weight loss. In conclusion, by way of achieving more voluntary intake of water and better fluid state, recommending cool water (~16°C) for athletes is in order. Unlike the publicly held view, drinking cold water (~5°C) does not improve voluntary drinking and hydration status. Key pointsFor athletes dehydrated in hot environments, maximum voluntary drinking and best hydration state occurs with 16°C water.Provision of fluid needs and thermal needs could be balanced using 16°C water.Drinking 16°C water (nearly the temperature of cool tap water) could be recommended for exercise in the heat.
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Affiliation(s)
- Saeed Khamnei
- Department of Physiology, Tabriz Branch,, Islamic Azad University , Tabriz, Iran
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