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Girase A, Shinde A, Ormond RB. Qualitative Assessment of Off-Gassing of Compounds from Field-Contaminated Firefighter Jackets with Varied Air Exposure Time Intervals Using Headspace GC-MS. Textiles (Basel) 2023; 3:246-256. [PMID: 37786878 PMCID: PMC10544876 DOI: 10.3390/textiles3020016] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Firefighters are exposed to a complex mix of volatile and semi-volatile compounds from burning construction materials, consumer products, and other elements during fire suppression and rescue. These compounds can be absorbed onto the gear worn by firefighters and, depending on their volatility, can be released from the gear under different conditions. Few studies have focused on the off-gassing of toxic compounds from firefighters' gear, particularly in terms of qualitative analysis methods. This study introduces a novel qualitative analysis method using headspace gas chromatography-mass spectrometry (HS-GC-MS) to assess off-gassing from field-contaminated jackets at regular intervals. Our findings show that certain compounds, such as acetic acid and di-ethyl-hexyl-phthalate (DEHP), remained present even after the gear were allowed to air out for 48 h. The persistent off-gassing of chemicals, even under ambient conditions, raises concerns about potential hazards that could pose risks for personnel in the vicinity of contaminated gear, including inside fire stations. The implications of these findings extend beyond fire stations and may have significant public health implications for firefighters who are repeatedly exposed to these compounds over time.
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Affiliation(s)
- Arjunsing Girase
- Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Adhiraj Shinde
- Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Robert Bryan Ormond
- Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
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Chopra S, Mulani J, Singh M, Shinde A, Mittal P, Gurram L, Scaria L, A D, Kohle S, Rane P, Ghadi Y, Rath S, Ghosh J, Gulia S, Gupta S, Kinhikar R, Laskar S, Agarwal J. PD-0910 Early outcomes of abbreviated brachytherapy schedule for cervix cancer during COVID pandemic. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02989-9] [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: 10/18/2022]
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3
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Li R, Shinde A, Amini A, Liu A, Glaser S. PH-0400: Number of involved nodes and overall survival in node-positive endometrial cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00422-9] [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: 10/22/2022]
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4
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Shinde A, Ormond RB. Development of a Headspace Sampling–Gas Chromatography–Mass Spectrometry Method for the Analysis of Fireground Contaminants on Firefighter Turnout Materials. ACS Chem Health Saf 2020. [DOI: 10.1021/acs.chas.0c00041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adhiraj Shinde
- Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Drive, Raleigh, North Carolina 27606, United States
| | - R. Bryan Ormond
- Textile Protection and Comfort Center, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Drive, Raleigh, North Carolina 27606, United States
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Shinde A, Subramanian R, Palacharla R, Pandey S, Benade V, Jayarajan P, Bojja K, Nirogi R. 0155 SUVN-G3031, A Potent and Selective Histamine H3 Receptor Inverse Agonist - Differentiating Features Over Current Treatments of Narcolepsy. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Majority of pharmacological agents used in the treatment of narcolepsy have several limitations. Both nonclinical and clinical evidences suggest usefulness of the histamine H3 receptor (H3R) inverse agonists for the treatment of narcolepsy and addressing several of the current limitations.
Methods
Extensive nonclinical studies were carried out for SUVN-G3031 and other pharmacological agents that are currently being used for the treatment of narcolepsy. Nonclinical parameters like inter-species binding affinity, selectivity profile, in vivo and in vitro ADME features, nonclinical efficacy, neurochemistry and safety were compared.
Results
SUVN-G3031 has no inter-species variation in binding affinity at H3R with less than 50% inhibition at 1 µM against 70 other targets. Unlike pitolisant, SUVN-G3031 has no significant binding affinity at sigma 1 and 2 receptor. SUVN-G3031 has no inhibition and induction liability towards major CYP enzymes and transporters. Pitolisant is reported to be a CYP3A4, CYP2B6, and CYP1A2 inducer and a CYP2D6 and OCT1 inhibitor. SUVN-G3031 has robust wake promoting effects. SUVN-G3031 showed negligible affinity towards hERG channel with IC50 > 10 µM and had no effects on any ECG parameters in dog telemetry study. SUVN-G3031 did not show convulsion in rats up to the tested dose of 100 mg/kg, p.o. Most of the pharmacological agents used for the treatment of narcolepsy have abuse liability; SUVN-G3031 produced no change in the striatal and accumbal dopamine levels in rats suggesting no propensity to induce abuse liability. Unlike competing H3R inverse agonists, SUVN-G3031 has no effects on fertility and embryo-fetal development up to the highest tested doses.
Conclusion
Nonclinical studies demonstrate superiority of SUVN-G3031 over pharmacological agents currently used in the treatment of narcolepsy. SUVN-G3031 is being evaluated in a Phase 2 study as monotherapy for the treatment of narcolepsy with and without cataplexy (ClinicalTrials.gov Identifier: NCT04072380).
Support
None
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Affiliation(s)
- A Shinde
- Suven Life Sciences, Hyderabad, INDIA
| | | | | | - S Pandey
- Suven Life Sciences, Hyderabad, INDIA
| | - V Benade
- Suven Life Sciences, Hyderabad, INDIA
| | | | - K Bojja
- Suven Life Sciences, Hyderabad, INDIA
| | - R Nirogi
- Suven Life Sciences, Hyderabad, INDIA
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Nirogi R, Goyal V, Jayarajan P, Bhyrapuneni G, Ravula J, Jetta S, Shinde A. 0759 Phase 2 Proof Of Concept Study Of SUVN-G3031, A Histamine H3 Receptor Inverse Agonist For The Potential Treatment Of Narcolepsy. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.755] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
SUVN-G3031 is a potent inverse agonist at histamine H3 receptor (H3R) with selectivity over 70 other targets. SUVN-G3031 has excellent pharmacokinetics in rats and dogs. SUVN-G3031 demonstrated dose dependent receptor occupancy in rats with marked wake-promoting and anticataplectic effects in orexin knockout mice supporting its potential therapeutic utility in the treatment of narcolepsy. Long-term safety studies in animals and Phase 1 evaluation for safety, tolerability and pharmacokinetics demonstrated no concern for further development of SUVN-G3031.
Methods
SUVN-G3031 is currently being evaluated in a Phase 2 proof of concept study in USA for the treatment of narcolepsy with and without cataplexy (ClinicalTrials.gov Identifier: NCT04072380). This is a double-blind, placebo-controlled, parallel-group, multicenter study to evaluate the safety, tolerability, pharmacokinetics and efficacy of SUVN-G3031 in comparison to placebo in patients with narcolepsy with and without cataplexy. Participants with an ESS score of ≥ 12; and mean MWT time of < 12 min are being randomized at a ratio of 1:1:1 to 2 mg SUVN-G3031, 4 mg SUVN-G3031 or placebo. Patients are to be stratified based on the type of narcolepsy. Each patient will receive study drug once daily for 14 days. The primary objective of the study is to evaluate the effectiveness of SUVN-G3031 compared to placebo as measured by an improvement in the maintenance of wakefulness test (MWT) score. Various secondary, exploratory, safety endpoints and steady state plasma concentrations will be evaluated.
Results
This study has been initiated in Q3 2019 and subject recruitment is expected to be completed by Q2 2020.
Conclusion
This study is a phase 2 clinical trial evaluating the efficacy and safety of SUVN-G3031 as a monotherapy in patients with narcolepsy with and without cataplexy. Safety and efficacy results from the study are expected in Q3 2020.
Support
None
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Affiliation(s)
- R Nirogi
- Suven Life Sciences, Hyderabad, INDIA
| | - V Goyal
- Suven Life Sciences, Hyderabad, INDIA
| | | | | | - J Ravula
- Suven Life Sciences, Hyderabad, INDIA
| | - S Jetta
- Suven Life Sciences, Hyderabad, INDIA
| | - A Shinde
- Suven Life Sciences, Hyderabad, INDIA
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Benade V, Daripelli S, Petlu S, Subramanian R, Bhyrapuneni G, Shinde A, Rasheed M, Jayarajan P, Choudakari P, Nirogi R. 0008 SUVN-G3031, A Histamine H3 Receptor Inverse Agonist Produces Robust Wake Promoting and Anticataplectic Activity in Orexin Knockout Mice. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.007] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Narcolepsy is a sleep disorder characterized by excessive daytime sleepiness, sleep paralysis, hallucinations, and in some cases episodes of cataplexy. Results from animal studies indicate the involvement of deficient orexin transmission in narcolepsy which can be circumvented by the activation of histaminergic neurons. SUVN-G3031 is a potent and selective histamine H3 receptor inverse agonist with hKi of 8.7 nM and shows less than 50% inhibition at 1 µM against 70 other targets. SUVN-G3031 exhibited excellent pharmacokinetic properties and brain penetration in preclinical species. Oral administration of SUVN-G3031 produces significant increase in histamine, dopamine and norepinephrine levels in the rat cortex. Long-term safety studies in animals have been successfully completed without any concern for further development of SUVN-G3031. In the present study, the effects of SUVN-G3031 were evaluated in orexin knockout mice, a reliable animal model of narcolepsy as a proof-of-concept study for the treatment of narcolepsy with and without cataplexy.
Methods
Male orexin knockout mice (10 - 15 weeks old, 25 - 35 g at the time of surgery) were implanted with telemetric device for simultaneous monitoring of electroencephalography (EEG) and electromyography. Animals were allowed surgical recovery of 3 weeks prior to EEG recording. Effects of SUVN-G3031 (3 and 10 mg/kg, p.o.) were evaluated during active period of animals.
Results
SUVN-G3031 produced significant increase in wakefulness with concomitant decrease in non-rapid eye movement sleep in orexin knockout mice. SUVN-G3031 also significantly decreased the number of cataplectic episodes in orexin knockout mice.
Conclusion
Results from the current preclinical study provide a strong basis for the utility of SUVN-G3031 for the treatment of narcolepsy with and without cataplexy. SUVN-G3031 is currently being evaluated in a Phase 2 study as monotherapy for the treatment of narcolepsy with and without cataplexy (ClinicalTrials.gov Identifier: NCT04072380).
Support
None
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Affiliation(s)
- V Benade
- Suven Life Sciences, Hyderabad, INDIA
| | | | - S Petlu
- Suven Life Sciences, Hyderabad, INDIA
| | | | | | - A Shinde
- Suven Life Sciences, Hyderabad, INDIA
| | - M Rasheed
- Suven Life Sciences, Hyderabad, INDIA
| | | | | | - R Nirogi
- Suven Life Sciences, Hyderabad, INDIA
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8
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Nirogi R, Bhyrapuneni G, Abraham R, Subramanian R, Goyal V, Pandey S, Badange R, Shinde A. SUVN-G3031, a potent and selective histamine H3 receptor inverse agonist for the treatment of narcolepsy with or without cataplexy – Differentiating factors with competitor clinical candidates. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.784] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Nirogi R, Mudigonda K, Bhyrapuneni G, Muddana N, Palacharla R, Ajjala D, Goyal V, Ravula J, Jetta S, Mohammed A, Shinde A. Safety, tolerability and pharmacokinetics of a potent and selective histamine h3 receptor inverse agonist, SUVN-G3031 following single and multiple ascending doses in healthy subjects. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.785] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Li R, Shinde A, Liu A, Amini A. Individualized Prediction of Early Post-Treatment Mortality Risk in Stage I Non-Small Cell Lung Cancer: A Machine Learning-Based Approach. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2172] [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: 10/26/2022]
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11
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Novak J, Li R, Amini A, Chen Y, Wong J, Shinde A, Han C, Neylon J, Liu A, Glaser S. Setup Accuracy in Craniospinal Irradiation: Implications for Planning Treatment Volume Margins. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.938] [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: 10/26/2022]
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12
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Amini A, Shinde A, Li R, Ituarte P, Vazquez J, Glaser S, Massarelli E, Erhunmwunsee L, Salgia R, Ashing K. Disparate Outcomes in Non-Small Cell Lung Cancer By Race and Immigrant Status. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1481] [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: 11/29/2022]
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13
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Li R, Shinde A, Novak J, Amini A, Vapiwala N, Beriwal S, Chen Y, Glaser S. Temporal Trends of Resident Experience in External Beam Radiation Therapy Cases: Analysis of ACGME Case Logs from 2007-2018. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2208] [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: 10/26/2022]
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14
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Li R, Shinde A, Liu A, Glaser S, Amini A. Identification of Nonlinear Interaction Effects in Prostate Cancer Survival Using Machine Learning-Based Modeling. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.091] [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: 11/26/2022]
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15
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Shinde A, Wohlers C, Wong K, Novak J, Neylon J, Han C, Liu A, Dandapani S, Glaser S. Dosimetric Comparison of Multiple vs Single Isocenter Technique for Linear Accelerator-Based Stereotactic Radiosurgery: The Importance of the Six Degree Couch. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.723] [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: 11/30/2022]
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16
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Li R, Shinde A, Han E, Lee S, Beriwal S, Harkenrider M, Kamrava M, Chen Y, Amini A, Glaser S. Definition of a unified risk classification system for adjuvant therapy in stage I endometrial cancer. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.429] [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: 11/29/2022]
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17
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Shinde A, Akhavan D, Amini A, Chen Y, Beriwal S, Glaser S, Li R. Uterine sarcomas: Patterns of care, prognostic variables, and treatment effect. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.557] [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: 11/26/2022]
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18
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Shinde A, Li R, Chen Y, Amini A, Wakabayashi M, Beriwal S, Glaser S. Improved Survival with Definitive Treatment in Vulvar Cancer with Metastatic Disease to the Pelvic Lymph Nodes. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1786] [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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19
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Kageyama T, Takeoka K, Hirose M, Yagita K, Tsukita K, Sakamaki H, Yamanaka H, Wada I, Obata K, Shinde A, Suenaga T. Diagnostic value of extensive perineural enhancement in patients with anti-MOG antibody-associated optic neuritis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3463] [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: 11/25/2022]
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20
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Shinde A, Shukla A, Juneja M, More R. Comparison of Cystatin C and creatinine for early detection of contrast induced nephropathy. Indian Heart J 2015. [DOI: 10.1016/j.ihj.2015.10.310] [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: 10/22/2022] Open
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21
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Greenberger J, Shinde A, Berhane H, Dixon T, Franicola D, Li S, Kagan V, Parmar K, Guinan E, Epperly M. Mitochondrial Localization of GS-Nitroxide JP4-039 Delivered in Intraoral Emulsion Ameliorates Radiation Mucositis in Fanconi Anemia (FA) Fancd2-/- Mice. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1931] [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: 11/16/2022]
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Abstract
BACKGROUND Post-traumatic stress disorder is an anxiety disorder for which current therapies are not effective. The 5-Hydroxytryptamine6 receptor antagonist SB399885 has been reported to have an anxiolytic effect. Hence, the current investigation was undertaken to evaluate its efficacy in post-traumatic stress disorder. METHODS Rats were placed in the operant box and given 3 foot shocks at intervals of 1 min. The following day the duration of freezing was recorded. For the enhanced sustained prolonged stress (ESPS), the rats were subjected to various stressors such as restraint stress (2 h), forced swim (20 min), and anesthesia, followed by a foot shock for 4 s. The rats were then subjected to the elevated plus maze. RESULTS Treatment with SB399885 (1 and 3 mg/kg, I. p.) was found to significantly decrease the freezing time in the contextual fear conditioning model. Rats subjected to ESPS spent greater time in the open arm of the elevated plus maze when administered SB399885 at the above mentioned doses. The treatment had no effect on locomotor activity. SB399885 decreased the 5-hydroxytryptamine levels in the amygdala at doses that were effective in the above animal models. CONCLUSION 5-Hydroxytryptamine6 antagonists may hold potential in the treatment of post-traumatic stress.
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Affiliation(s)
- R Abraham
- Discovery Research, Suven Life Sciences Ltd, Hyderabad, India
| | - R Nirogi
- Discovery Research, Suven Life Sciences Ltd, Hyderabad, India
| | - A Shinde
- Discovery Research, Suven Life Sciences Ltd, Hyderabad, India
| | - V S Benade
- Discovery Research, Suven Life Sciences Ltd, Hyderabad, India
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Epperly M, Shinde A, Rhieu B, Wang H, Donna S, Franicola D, Zhang X, Dixon T, Wipf P, Sprachman M, Greenberger J. Effects of Radiation Mitigators JP4-039 and MMS350 on Gene Transcripts in Radiosensitive Fanconi Anemia Fancd2-/- (C57Bl/6) Bone Marrow Stromal Cells. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2249] [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]
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24
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Epperly M, Shinde A, Rhieu B, Berhane H, Wang H, Shields D, Cao S, Zhang X, Dixon T, Greenberger J. Disparate Gene Transcript Patterns Between Radiosensitive Bone Marrow Stromal and Radioresistant Hematopoietic Cell Lines From Fanconi Anemia (FA) (Fancd2-/-) C57BL/6 Mice. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2334] [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]
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25
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Epperly M, Shinde A, Rhieu B, Berhane H, Guinan E, Parmar K, Wang H, Franicola D, Zhang X, Dixon T, Greenberger J. Intraoral GS-Nitroxide JP4-039 in Novel F15 Emulsion Ameliorates Irradiation-Induced Mucositis in Tumor Bearing Fanconi Anemia (FA) (Fancd2-/-) C57BL/6 Mice. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2250] [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]
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26
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Beriwal S, Heron D, Shinde A, Kelley J, Edwards R, Sukumvanich P, Richard S, Olawaiye A, Krivak T. Preoperative chemo IMRT for vulvar carcinoma — Analysis of pattern of relapse. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.199] [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: 11/29/2022]
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27
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Gawade P, Salvi V, Mathur K, Mutalik N, Shinde A. Training auxiliary nurse midwives and other paramedical staff in dispensing emergency contraception pills. Nurs J India 2009; 100:128-130. [PMID: 19908603] [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: 05/28/2023]
Affiliation(s)
- P Gawade
- ICMR, Seth GS Medical College and KEM Hospital
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28
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Abstract
OBJECTIVE To integrate an immune-mediated mechanism and the disturbed protein expression in sporadic inclusion body myositis (IBM). BACKGROUND In IBM, abnormal fibers harbor inclusions of some proteins found in the brains of patients with Alzheimer disease (AD). Poly(A)-binding protein 1 (PABP1) is the RNA binding protein that attaches to the poly(A) tail of mRNA and is involved in translation and mRNA degradation. Under stresses, mRNA combined with PABP1 forms cytoplasmic granules called stress granules. METHODS Using 12 muscle biopsies with sporadic IBM and 46 controls, the authors localized PABP1 by immunohistochemistry, and poly(A)-containing RNA (poly(A)+ RNA) using the in situ hybridization method. They also immuno-localized HuR, one of the components of stress granules. RESULTS In IBM, a proportion of fibers, including those vacuolated, showed an abnormal accumulation of PABP1 immuno-positive deposits. An immunofluorescence study indicated that large PABP1 positive deposits formed conglomerates with poly(A)+ RNA and PABP1 colocalized with HuR. Although PABP1-positive cytoplasmic inclusions were found in disease controls, their aggregates combined with poly(A)+ RNA were only detected in IBM. CONCLUSIONS The localization of PABP1 positive deposits in inclusion body myositis (IBM) and other diseases may correspond to the stress granules that are formed under exposure to cellular stresses and the sites of mRNA turnover. The concomitant aggregation of poly(A)+ RNA that is specifically found in IBM may be due to the inhibition of mRNA degradation, which may affect translation. The authors speculate that an autoantibody against mRNA degradation machinery could play a role in this inhibition.
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MESH Headings
- Aged
- Aged, 80 and over
- Autoantibodies/genetics
- Autoantibodies/immunology
- Biomarkers
- Biopsy
- Cytoplasmic Granules/genetics
- Cytoplasmic Granules/metabolism
- Female
- Humans
- Immunohistochemistry
- Male
- Middle Aged
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscle, Skeletal/physiopathology
- Myositis, Inclusion Body/genetics
- Myositis, Inclusion Body/metabolism
- Myositis, Inclusion Body/pathology
- Poly(A)-Binding Protein I/genetics
- Poly(A)-Binding Protein I/metabolism
- Predictive Value of Tests
- Protein Biosynthesis/genetics
- Protein Biosynthesis/immunology
- RNA Stability
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Stress, Physiological/genetics
- Stress, Physiological/metabolism
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Affiliation(s)
- S Nakano
- Department of Neurology, Kansai Medical University, Moriguchi-city, Japan.
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Abstract
OBJECTIVE To investigate alterations in protein kinases and phosphatases that regulate the activity of mitogen activated protein kinase (MAPK) in sporadic inclusion body myositis (IBM). BACKGROUND In vacuolated fibers in IBM, several studies reported upregulation of the extracellular regulated kinase (ERK) subclass of MAPK family. Whereas MAPK kinases (MKK) activate MAPK, MAPK phosphatases (MKP) inactivate MAPK. MKP-1 is involved in muscle fiber differentiation and it is downregulated during myotube formation. METHODS Immunolocalization of MKK1 through MKK4 and MKP-1 to MKP-3 was tested in muscle specimens from 10 patients with IBM and controls. RESULTS In IBM, strong and focal deposits of MKP-1 were observed in vacuolated fibers. The MKP-1-positive deposits were colocalized with ERK. MKP-2, MKP-3, and MKK were not associated with vacuolated fibers. CONCLUSIONS In IBM, MKP-1 is abnormally induced in vacuolated fibers probably to inactivate ERK. Although direct activators other than those tested in the current study might induce ERK, the absence of activation of MKK suggests that the aggregation of ERK protein itself causes the seeming upregulation of the protein kinase in IBM. Like ERK and its nuclear substrate, MKP-1 is an enzyme that forms aggregates in vacuolated fibers and is involved in myogenesis.
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Affiliation(s)
- S Nakano
- Department of Neurology, Kansai Medical University, Moriguchi-city, Japan.
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Shinde A, Matsumae H, Maruyama A, Oida J, Kawamoto Y, Kouhara N, Oka N, Shirase T, Kitaichi M, Akiguchi I, Shibasaki H. [A patient with Crow-Fukase syndrome associated with pulmonary plasmacytoma]. Rinsho Shinkeigaku 2001; 41:121-5. [PMID: 11481854] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
We here reported a 54-year-old female patient with Crow-Fukase syndrome associated with pulmonary plasmacytoma. She was found to have scattered tumor in 1990. Although the tumor had slowly grown for the last 10 years, she showed no clinical symptoms. Numbness and weakness of lower extremities began in June 1999, and she was referred to Kyoto University Hospital on Oct. 21 1999 for evaluation of progressive symptoms. She had skin pigmentation, edema of the lower extremities, lymphadenopathy, muscle weakness and sensory disturbance in a glove-and-stocking distribution. Serological examination showed monoclonal IgG-lambda gammopathy. Serum vascular endothelial growth factor (VEGF) was markedly elevated. Microscopic studies on biopsied sural nerve demonstrated mild decrease of myelinated fibers. Immunohistochemically, the pulmonary tumor was defined as an IgG (lambda type) plasmacytoma. After treatment with melphalan-prednisolone therapy, the neurological symptoms improved along with decrease of serum VEGF levels as well as the size of pulmonary plasmacytoma. This is the first report of a patient with Crow-Fukase syndrome associated with pulmonary plasmacytoma. This case suggests that growth of pulmonary plasmacytoma might have played an important role in the overproduction of VEGF and thus development of Crow-Fukase syndrome.
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Affiliation(s)
- A Shinde
- Department of Neurology, Kyoto University Graduate School of Medicine
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Nakano S, Shinde A, Kawashima S, Nakamura S, Akiguchi I, Kimura J. Inclusion body myositis: expression of extracellular signal-regulated kinase and its substrate. Neurology 2001; 56:87-93. [PMID: 11148241 DOI: 10.1212/wnl.56.1.87] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/15/2022] Open
Abstract
OBJECTIVE To assess abnormal intracellular signal transduction in inclusion body myositis (IBM). BACKGROUND Mitogen-activated protein kinases (MAPKs) play pivotal roles in intracellular signal transduction and regulate cell growth and differentiation. Upon their activation, MAPKs translocate from the cytoplasm into the nucleus. DESIGN/METHODS The authors investigated the localization of several forms of the MAPK family-extracellular signal-regulated kinase (ERK), c-Jun N-terminal protein kinase (JNK), and p38 MAPK (p38)-in 10 patients with sporadic IBM and in 52 control subjects. The relationship between the localization of immunopositive deposits and nuclei was tested with bis-benzimide. RESULTS Vacuolated fibers in IBM displayed very strong focal immunoreactivity of ERK, but not of JNK or p38. The ERK-positive deposits in these vacuolated fibers colocalized with the nuclear substrate of ERK, Elk-1. ERK- and Elk-1-positive deposits were located frequently on the surface of the nuclei in vacuolated fibers in IBM. Similar findings to those of sporadic IBM were observed in three patients with distal myopathy with rimmed vacuoles, but not in eight normal or the other 41 disease controls. CONCLUSION There is evidence for impaired molecular transport to the nucleus from the cytoplasm in the vacuolated fibers in IBM. This could be due to cytoplasmic aggregation of ERK and Elk-1 or to abnormal nuclear pore machinery involved in the transport of ERK and its substrate upon ERK activation.
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Affiliation(s)
- S Nakano
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Tang YM, Green BL, Chen GF, Thompson PA, Lang NP, Shinde A, Lin DX, Tan W, Lyn-Cook BD, Hammons GJ, Kadlubar FF. Human CYP1B1 Leu432Val gene polymorphism: ethnic distribution in African-Americans, Caucasians and Chinese; oestradiol hydroxylase activity; and distribution in prostate cancer cases and controls. Pharmacogenetics 2000; 10:761-6. [PMID: 11221602 DOI: 10.1097/00008571-200012000-00001] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cytochrome P4501B1 (CYP1B1) is involved in the activation of many carcinogens and in the metabolism of steroid hormones, including 17beta-oestradiol (E2) and testosterone. We report a significant difference in the allele frequencies of two point mutations in the coding region of the CYP1B1 gene among Caucasian (n = 189), African-American (n = 52) and Chinese (Linxian) (n = 109) populations. A (C to G) transversion at position 1666 in exon 3, which results in an amino acid substitution of Leu432 to Val, was present in African-Americans with an allele frequency for Va1432 of 0.75, in Caucasians of 0.43, and in Chinese of 0.17. A (C to T) transition at position 1719 in exon 3, with no amino acid change (Asp449), appeared to be closely linked with the Val432 variant. Results using human lung microsomal preparations from individuals with the CYP1B1Val/Val and CYP1B1Leu/Leu genotypes indicate that Val432 variant may be a high activity allele and thus may contribute to the interindividual differences in CYP1B1 activity. Because CYP1B1 is involved in hormone and carcinogen metabolism, and given the disparate rates of prostate cancer among ethnic groups, we also evaluated the association of the CYP1B1 Leu432Val polymorphism with prostate cancer risk in a pilot case-control study. Among Caucasians, 34% of men with cancer (n = 50) were homozygous for the Val432 polymorphism, while only 12% of matched control subjects (n = 50) had this genotype. These preliminary data indicate that genetic polymorphisms in CYP1B1 might play an important role in human prostate carcinogenesis.
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Affiliation(s)
- Y M Tang
- Division of Molecular Epidemiology, National Center for Toxicological Research, Jefferson, AR 72079, USA
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Shinde A, Nakano S, Abe M, Kohara N, Akiguchi I, Shibasaki H. Accumulation of microtubule-based motor protein in a patient with colchicine myopathy. Neurology 2000; 55:1414-5. [PMID: 11087798 DOI: 10.1212/wnl.55.9.1414] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- A Shinde
- Department of Neurology, Graduate School of Medicine, Kyoto University, Japan
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Shinde A, Khopkar U, Pai VV, Ganapati R. Single-dose treatment for single lesion leprosy; histopathological observations. Int J Lepr Other Mycobact Dis 2000; 68:328-30. [PMID: 11221099] [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: 02/19/2023]
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Shinde A, Nakano S, Taguchi Y, Kagawa D, Akiguchi I. [A patient of MELAS with 3271 mutation with fatal outcome after alcohol intake]. Rinsho Shinkeigaku 2000; 40:561-5. [PMID: 11086393] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
A patient of MELAS is reported. A 28-year-old woman was admitted to Shimada Municipal Hospital because of nausea, vomiting, and right homonymous hemianopsia. She had past history of dizziness and convulsion. A brain magnetic resonance imaging showed an ischemic lesion in the left occipital lobe, which disappeared in the follow-up study. Laboratory examination indicated elevated lactate and pyruvate levels in both blood and cerebrospinal fluid. The muscle biopsy demonstrated ragged-red fibers and strongly SDH-reactive blood vessels. PCR-RFLP analysis of DNA extracted from her muscle and blood as well as her mother's blood revealed a T to C mutation at nucleophile position of 3271 in mitochondrial DNA. She was diagnosed as having MELAS and discharged. One year after the first admission, she re-visited our hospital because of three days' duration of fatigability and generalized muscle pain after alcohol intake. She had severe lactic acidosis, rhabdomyolysis and acute renal failure. Despite a continuous hemodialysis and other intensive efforts, the patient died 20 hours later. Alcohol intake has been reported to induce rhabdomyolysis in myopathy with mitochondrial DNA deletions. The course of this patient suggests that alcohol intake can be an aggravating factor also in MELAS.
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Affiliation(s)
- A Shinde
- Department of Internal Medicine, Shimada Municipal Hospital
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Rao U, McGinty DJ, Shinde A, McCracken JT, Poland RE. Prenatal stress is associated with depression-related electroencephalographic sleep changes in adult male rats: a preliminary report. Prog Neuropsychopharmacol Biol Psychiatry 1999; 23:929-39. [PMID: 10509385 DOI: 10.1016/s0278-5846(99)00036-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [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: 10/18/2022]
Abstract
1. Prenatal stress in rats has been shown to produce long-term behavioral, neuroendocrine and neurochemical changes. These changes may model aspects of human depressive illness. 2. In this pilot investigation, adult male offspring exposed to stress in utero and non-stressed controls were studied using 24-hour electroencephalographic sleep recordings. 3. Prenatally stressed animals demonstrated reduced latency to the onset of rapid eye movement (REM) sleep, prolongation of the first REM episode, and diminished slow-wave sleep. 4. Although preliminary, the observed changes parallel those seen in studies of human depression. These data further support the face validity of the prenatal stress model as a potential tool for future studies on the pathophysiology of depressive disorder.
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Affiliation(s)
- U Rao
- Department of Psychiatry, UCLA School of Medicine, USA
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Jennings ML, Whitlock J, Shinde A. Pre-steady state transport by erythrocyte band 3 protein: uphill countertransport induced by the impermeant inhibitor H2DIDS. Biochem Cell Biol 1999; 76:807-13. [PMID: 10353715 DOI: 10.1139/bcb-76-5-807] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Pre-steady state Cl- efflux experiments have been performed to test directly the idea that the transport inhibitor H2DIDS (4,4'-diisothiocyanatodihydrostilbene-2,2'-disulfonate) binds preferentially to the outward-facing state of the transporter. Cells were equilibrated with a medium consisting of 150 mM sodium phosphate, pH 6.2, N2 atmosphere, and 80-250 microM 36Cl-. Addition of H2DIDS (10-fold molar excess compared with band 3) induces a transient efflux of Cl-, as expected if H2DIDS binds more tightly to outward-facing than to inward-facing states. The size of the H2DIDS-induced efflux depends on the Cl- concentration and is about 700,000 ions per cell at the highest concentrations tested. The size of the transient efflux is larger than would be expected if the catalytic cycle for anion exchange involved one pair of exchanging anions per band 3 dimer. These results are completely consistent with a ping-pong mechanism of anion exchange in which the catalytic cycle consists of one pair of exchanging anions per subunit of the band 3 dimer.
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Affiliation(s)
- M L Jennings
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock 72205, USA.
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Tachibana N, Kimura K, Kitajima K, Shinde A, Kimura J, Shibasaki H. REM sleep motor dysfunction in multiple system atrophy: with special emphasis on sleep talk as its early clinical manifestation. J Neurol Neurosurg Psychiatry 1997; 63:678-81. [PMID: 9408115 PMCID: PMC2169831 DOI: 10.1136/jnnp.63.5.678] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Various neurodegenerative diseases involving brainstem structures as one of the main pathological lesions are reported to be associated with REM sleep behaviour disorder. Full blown REM sleep behaviour disorder can be diagnosed clinically, but REM sleep motor dysfunction, a pathophysiological basis of REM sleep behaviour disorder, is difficult to detect without all night polysomnography. Twenty one consecutive patients with multiple system atrophy with no complaints of nocturnal abnormal behaviours were clinically evaluated to determine the presence of sleep related symptoms. All night polysomnography with video monitoring was performed to investigate REM sleep characteristics and patients' behaviours. In 85.7% (18 of 21) of the patients' sleep talk started or increased around or after the clinical onset of the primary diseases. REM sleep without atonia occupied more than 15% (16.2%-100%) of the REM sleep time in all but one patient. In 90.5% (19 of 21) of patients, motor events such as sleep talk and various combinations of craniofacial, orofacial, or limb movements occurred at various frequencies mostly during REM sleep without atonia. In patients with multiple system atrophy, REM sleep motor dysfunction is a common polysomnographic finding which is otherwise overlooked, and sleep talk may be its early clinical manifestation.
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Affiliation(s)
- N Tachibana
- Department of Brain Pathophysiology, Kyoto University School of Medicine, Japan
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Abstract
Two patients presented with a complaint of frequent sudden arousals during sleep followed by tachypnea and palpitation associated with stiffness in the upper extremities in one case and by elevation of the left lower limb in the other. All night video-electroencephalogram (EEG) polysomnography (VPSG) confirmed the diagnosis of seizure arising from the supplementary motor area (SMA seizure) in both cases. Carbamazepine (CBZ) produced remarkable improvement both in clinical seizures and in their subjective sleep quality. Repeated polysomnography after treatment showed a clear improvement in sleep architecture with higher percentages of slow wave sleep. SMA seizure could disturb nocturnal sleep and is one of the important differential diagnoses for a patient complaining of frequent arousals associated with motor disturbance during sleep.
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Affiliation(s)
- N Tachibana
- Department of Brain Pathophysiology, Kyoto University School of Medicine, Japan
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