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Jafari Fakhrabad M, Moshiri M, Ariakia F, Askari VR, Salmasi Z, Etemad L. Effect of cyanocobalamin (vitamin B12) on paraquat-induced brain injury in mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:745-754. [PMID: 35949307 PMCID: PMC9320208 DOI: 10.22038/ijbms.2022.64164.14128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/08/2022] [Indexed: 11/06/2022]
Abstract
Objectives The goal of this study was to evaluate the neuroprotective effects of vit B12 on paraquat-induced neurotoxicity. Materials and Methods Thirty-six male mice were randomly divided into six groups. Three groups were treated intraperitoneally with paraquat (10 mg/kg) twice a week (with a 3-day interval) for 3 weeks. Normal saline, vit B12 (1 mg /kg), or vit C (50 mg/kg) was injected 30 min before paraquat administration. Other groups only received normal saline (control), vit B12, or vit C in the same protocol. Motor performance and coordination were assayed by challenging beam traversal, pole, open field, and rotarod tests. The hippocampus and serum samples were isolated to evaluate the oxidative stress (GSH and ROS), apoptosis (caspase 3), and inflammatory markers (TNF-α and IL-1β). Results Administration of paraquat leads to induction of motor deficits, which were improved by treatment with vit B12. In addition, vit B12 could prevent oxidative damage, apoptosis, and inflammation caused by paraquat. Conclusion It seems that vit B12 could be a novel therapeutic agent in the management of paraquat induced-neurotoxicity.
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Affiliation(s)
- Marzieh Jafari Fakhrabad
- Department of Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Moshiri
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran,Department of Clinical Toxicology, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Ariakia
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Reza Askari
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran,Department of Pharmaceutical Sciences in Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran,Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Salmasi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran,Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leila Etemad
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran,Department of Pharmaceutical and Food Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran,Corresponding author: Leila Etemad. Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical and Food Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran. Tel/ Fax: +98-5137112611;
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Djawad K. Pentoxifylline therapy for patients with type 2 leprosy reactions: erythema nodosum leprosum in steroid-dependent cases. VESTNIK DERMATOLOGII I VENEROLOGII 2021. [DOI: 10.25208/vdv1196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Introduction. Morbus Hansen is the infectious disease which causes by bacilli intracellular Mycobacterium leprae which mainly affects the skin and peripheral nerves. The leprosy reaction is an episode an immunologically mediated episode of acute or subacute inflammation which affecting skin; nerve; mucous membrane. Type 2 reactions can be last for months and risk of developing dependence on steroids. Pentoxifylline (PTX) works to hampers the production TNF in vitro and in vivo; are an alternative for ENL treatment.
Case Report. One case was reported in a male aged 28 years with complaints of recurring red bumps accompanied by fever and pain.
Discussion. On physical examination obtained erythema nodosum; with impaired sensibility in the left leg. The patient experienced improvement after being given therapy of neurodex/24 hours/oral; rifampicin 600 mg; ofloxacin 400 mg; minocycline 100 mg which given 3x for a week; and combination therapy to treat the Leprosy reaction given the combination of methylprednisolone 16mg (3-2-0) and Pentoxifylline 400 mg/8 hours/oral.
Conclusion. In the 21 day of treatment; the redness lump improved in the middle finger and left arm was gone. No new reddish bumps appeared and less tingling sensation.
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Vest M, Guida A, Colombini C, Cordes K, Pena D, Maki M, Briones M, Antonio S, Hollifield C, Tian E, James L, Borashan C, Woodson J, Rovig J, Shihadeh H, Karabachev A, Brosious J, Pistorio A. Closing the Gap Between Mammalian and Invertebrate Peripheral Nerve Injury: Protocol for a Novel Nerve Repair. JMIR Res Protoc 2020; 9:e18706. [PMID: 32851981 PMCID: PMC7484768 DOI: 10.2196/18706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Outcomes after peripheral nerve injuries are poor despite current nerve repair techniques. Currently, there is no conclusive evidence that mammalian axons are capable of spontaneous fusion after transection. Notably, certain invertebrate species are able to auto-fuse after transection. Although mammalian axonal auto-fusion has not been observed experimentally, no mammalian study to date has demonstrated regenerating axolemmal membranes contacting intact distal segment axolemmal membranes to determine whether mammalian peripheral nerve axons have the intrinsic mechanisms necessary to auto-fuse after transection. OBJECTIVE This study aims to assess fusion competence between regenerating axons and intact distal segment axons by enhancing axon regeneration, delaying Wallerian degeneration, limiting the immune response, and preventing myelin obstruction. METHODS This study will use a rat sciatic nerve model to evaluate the effects of a novel peripheral nerve repair protocol on behavioral, electrophysiologic, and morphologic parameters. This protocol consists of a variety of preoperative, intraoperative, and postoperative interventions. Fusion will be assessed with electrophysiological conduction of action potentials across the repaired transection site. Axon-axon contact will be assessed with transmission electron microscopy. Behavioral recovery will be analyzed with the sciatic functional index. A total of 36 rats will be used for this study. The experimental group will use 24 rats and the negative control group will use 12 rats. For both the experimental and negative control groups, there will be both a behavior group and another group that will undergo electrophysiological and morphological analysis. The primary end point will be the presence or absence of action potentials across the lesion site. Secondary end points will include behavioral recovery with the sciatic functional index and morphological analysis of axon-axon contact between regenerating axons and intact distal segment axons. RESULTS The author is in the process of grant funding and institutional review board approval as of March 2020. The final follow-up will be completed by December 2021. CONCLUSIONS In this study, the efficacy of the proposed novel peripheral nerve repair protocol will be evaluated using behavioral and electrophysiologic parameters. The author believes this study will provide information regarding whether spontaneous axon fusion is possible in mammals under the proper conditions. This information could potentially be translated to clinical trials if successful to improve outcomes after peripheral nerve injury. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/18706.
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Affiliation(s)
- Maxwell Vest
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Addison Guida
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Cory Colombini
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Kristina Cordes
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Diana Pena
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Marwa Maki
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Michael Briones
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Sabrina Antonio
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Carmen Hollifield
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Elli Tian
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Lucas James
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Christian Borashan
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Johnnie Woodson
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - John Rovig
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Hanaa Shihadeh
- Larner College of Medicine, University of Vermont, Burlington, VT, United States
| | - Alexander Karabachev
- Larner College of Medicine, University of Vermont, Burlington, VT, United States
| | - John Brosious
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Ashley Pistorio
- Department of Plastic and Reconstructive Surgery, University of Nevada Las Vegas, Las Vegas, NV, United States
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Reddy SS, Prabhakar YK, Kumar CU, Reddy PY, Reddy GB. Effect of vitamin B 12 supplementation on retinal lesions in diabetic rats. Mol Vis 2020; 26:311-325. [PMID: 32355441 PMCID: PMC7190579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/22/2020] [Indexed: 10/24/2022] Open
Abstract
Purpose Diabetic retinopathy (DR) is the most common complication of diabetes involving microvasculature and neuronal alterations in the retina. Previously, we reported that vitamin B12 deficiency could be an independent risk factor for DR in humans. However, the effect of vitamin B12 supplementation in experimental DR is unknown. Thus, in this study, we investigated the impact of dietary supplementation of vitamin B12 on retinal changes in diabetic rats. Methods Diabetes was induced in 2-month-old Sprague-Dawley rats and maintained for 4 months. One group of diabetic rats were fed normal levels of vitamin B12, and one group double the quantity of vitamin B12 (50 µg/kg diet). Vitamin B12 and homocysteine levels in the plasma were analyzed with radioimmunoassay (RIA) and high-performance liquid chromatography (HPLC), respectively. At the end of 4 months of experimentation, the eyeballs were collected. Retinal changes were analyzed with hematoxylin and eosin (H&E) staining, immunoblotting, and immunofluorescence methods. Results Dietary supplementation of vitamin B12 had no effect on food intake, bodyweight, fasting blood glucose, and plasma homocysteine levels in the diabetic rats. However, vitamin B12 supplementation prevented loss of rhodopsin, and overexpression of VEGF, and completely prevented overexpression of HIF1α, GFAP, and endoplasmic reticulum (ER) stress markers (GRP78, ATF6α, XBP1, CHOP, and caspase 12) in the diabetic rat retina. Further, vitamin B12 ameliorated apoptosis in the retina as shown with terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) and prevented retinal thinning. Conclusions Vitamin B12 supplementation of diabetic rats appeared to be beneficial by circumventing retinal hypoxia, VEGF overexpression, and ER stress-mediated cell death in the retina. The present study adds another potential therapeutic strategy of vitamin B12 in diabetes.
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Martins DO, Marques DP, Venega RAG, Chacur M. Photobiomodulation and B vitamins administration produces antinociception in an orofacial pain model through the modulation of glial cells and cytokines expression. Brain Behav Immun Health 2020; 2:100040. [PMID: 34589831 PMCID: PMC8474295 DOI: 10.1016/j.bbih.2020.100040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic constriction injury (CCI) of infraorbital nerve (IoN) results in whisker pad mechanical allodynia in rats and activation glial cells contributing to the development of orofacial pain. Whisker pad mechanical allodynia (von Frey stimuli) was tested pre and postoperatively and conducted during the treatment time. Photobiomodulation (PBM) and vitamins B complex (VBC) has been demonstrated therapeutic efficacy in ameliorate neuropathic pain. The aim of this study was to evaluate the antinociceptive effect of PBM, VBC or the combined treatment VBC + PBM on orofacial pain due to CCI-IoN. Behavioral and molecular approaches were used to analyses nociception, cellular and neurochemical alterations. CCI-IoN caused mechanical allodynia and cellular alterations including increased expression of glial fibrillary acid protein (GFAP) and ionized calcium binding adaptor molecule 1 (Iba-1), administration of VBC (B1/B6/B12 at 180/180/1.8 mg/kg, s.c., 5 times all long 10 sessions) and PBM therapy (904 nm, power of 75Wpico, average power of 0.0434 W, pulse frequency of 9500 Hz, area of the beam 0.13 cm2, 18 s duration, energy density 6 J/cm2, with an energy per point of 0.78 J for 10 sessions) or their combination presented improvement of the nociceptive behavior and decreased expression of GFAP and Iba-1. Additionally, CCI-IoN rats exhibited an upregulation of IL1β, IL6 and TNF-α expression and all treatments prevented this upregulation and also increased IL10 expression. Overall, the present results highlight the pain reliever effect of VBC or PBM alone or in combination, through the modulation of glial cells and cytokines expression in the spinal trigeminal nucleus of rats.
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Affiliation(s)
- D O Martins
- Department of Anatomy, Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415, SP, Brazil
| | - D P Marques
- Department of Anatomy, Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415, SP, Brazil
| | - R A G Venega
- Department of Anatomy, Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415, SP, Brazil
| | - M Chacur
- Department of Anatomy, Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415, SP, Brazil
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Huang ZF, Lin BQ, Torsha TT, Dilshad S, Yang DS, Xiao J. Effect of Mannitol plus Vitamins B in the management of patients with piriformis syndrome. J Back Musculoskelet Rehabil 2019; 32:329-337. [PMID: 30412481 DOI: 10.3233/bmr-170983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Piriformis syndrome (PS) is an entrapment of the sciatic nerve by the piriformis muscle, or myofascial pain from the piriformis muscle. OBJECTIVE The aim of this study was to investigate the effectiveness of Mannitol plus Vitamins B regime in the management of PS. METHODS Twenty two patients were included in this study and received 250 ml of mannitol 20% intravenous infusion for 5 days + Vitamins B (vitamin B1 10 mg + vitamin B2 10 mg + vitamin B12 50 μg PO) for 6 weeks. Clinical outcomes were assessed systematically by clinical tests (tenderness, FAIR test, Beatty's, Freiberg's and Pace's maneuver), Numeric Rating Scale (NRS), Likert Analogue Scale (LAS), and MR examination. RESULTS The clinical evaluations showed a significant reduction (p< 0.05) of tenderness, FAIR test, Beatty's maneuver, Freiberg's maneuver and Pace's maneuver when compared with baseline evaluation during the 3rd and 6th month follow-ups. A statistically significant improvement of pain was measured by NRS at resting (p< 0.001), at night (p< 0.001) and during activities (p< 0.001) and LAS with prolonged sitting (p< 0.001), standing (p< 0.001) and lying (p< 0.001). Concomitantly, swelling of SN revealed a significant reduction (p= 0.003) from 86.4% to 18.2%. CONCLUSIONS Mannitol plus Vitamins B is effective in the management of piriformis syndrome and it could be an alternative regime in treating PS.
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Affiliation(s)
- Zhi-Fa Huang
- Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Department of Orthopaedic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi, China.,Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Bing-Quan Lin
- Department of Medical Imaging, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | | | - Sabil Dilshad
- Southern Medical University, Guangzhou, Guangdong, China
| | - De-Sheng Yang
- Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jun Xiao
- Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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7
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Wu F, Xu K, Liu L, Zhang K, Xia L, Zhang M, Teng C, Tong H, He Y, Xue Y, Zhang H, Chen D, Hu A. Vitamin B 12 Enhances Nerve Repair and Improves Functional Recovery After Traumatic Brain Injury by Inhibiting ER Stress-Induced Neuron Injury. Front Pharmacol 2019; 10:406. [PMID: 31105562 PMCID: PMC6491933 DOI: 10.3389/fphar.2019.00406] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 04/01/2019] [Indexed: 12/31/2022] Open
Abstract
Traumatic brain injury (TBI) is one of the most common causes of neurological damage in young human populations. Vitamin B12 has been reported to promote axon growth of neuronal cells after peripheral nerve injury, which is currently used for the treatment of peripheral nerve damage in the clinical trial. Thus, we hypothesized that TBI can be attenuated by vitaminB12 treatment through its beneficial role on axon regeneration after nerve injury. To confirm it, the biological function of vitaminB12 was characterized using hematoxylin and eosin (H&E) staining, Luxol fast blue (LFB) staining, western blot analysis, and immunohistochemistry staining. The results showed that the neurological functional recovery was improved in the VitaminB12-treated group after TBI, which may be due to downregulation of the endoplasmic reticulum stress-related apoptosis signaling pathway. Moreover, the microtubule stabilization, remyelination and myelin reparation were rescued by vitamin B12, which was consistent with the treatment of 4-phenylbutyric acid (4-PBA), an endoplasmic reticulum stress inhibitor. The study suggests that vitamin B12 may be useful as a novel neuroprotective drug for TBI.
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Affiliation(s)
- Fangfang Wu
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Ke Xu
- Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Lei Liu
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Kairui Zhang
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Leilei Xia
- Department of Emergency, Wenzhou People's Hospital, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Man Zhang
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Chenhuai Teng
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Heyan Tong
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yifang He
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yujie Xue
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Daqing Chen
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Aiping Hu
- Department of Emergency, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
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Franques J, Chiche L, De Paula AM, Grapperon AM, Attarian S, Pouget J, Mathis S. Characteristics of patients with vitamin B12-responsive neuropathy: a case series with systematic repeated electrophysiological assessment. Neurol Res 2019; 41:569-576. [DOI: 10.1080/01616412.2019.1588490] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jérôme Franques
- Department of Neurology, La Casamance Hospital, Aubagne, France
- Department of Internal Medicine, European Hospital, Marseille, France
| | - Laurent Chiche
- Department of Internal Medicine, European Hospital, Marseille, France
| | | | | | - Shahram Attarian
- Reference Center for Neuromuscular Disorders, CHU La Timone, Marseille, France
| | - Jean Pouget
- Reference Center for Neuromuscular Disorders, CHU La Timone, Marseille, France
| | - Stephane Mathis
- Department of Neurology, Groupe Hospitalier Pellegrin, Bordeaux, France
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9
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Şahin MM, Uğur MB, Karamert R, Aytekin S, Kabiş B, Düzlü M, Seymen C, Elmas Ç, Gökdoğan Ç, Ünlü S. Evaluation of Effect of Garlic Aged Extracts and Vitamin B12 on Noise-Induced Hearing Loss. Noise Health 2018; 20:232-239. [PMID: 31823910 PMCID: PMC6924192 DOI: 10.4103/nah.nah_33_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study investigated effects of S-allylmercaptocysteine (SAMC), diallyl disulfide (DADS), and vitamin B12 on inner ear functions and morphology after long-period high-level broadband noise exposure. MATERIALS AND METHODS Twenty-four healthy rats were randomly divided into four groups. First group was chosen as the control group. Vitamin B12, SAMC, and DADS were applied to other groups for 4 weeks. On the 14th day, each group was exposed to broadband noise. Auditory brainstem response test was performed before and immediately after noise exposure and repeated on the 2nd and 14th day. RESULTS Permanent threshold shifts were significantly lower in groups treated with vitamin B12, SAMC, and DADS. Histologically, cochleae of SAMC and DADS groups were found to be better preserved than the cochleae of vitamin B12 and control groups. CONCLUSION Physiologically and histologically, SAMC and DADS reduced the long-term effects of noise. However, physiological recovery was not consistent with the morphological findings in vitamin B12 group.
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Affiliation(s)
- Muammer M. Şahin
- Department of Otorhinolaryngology, Head and Neck Surgery, Ankara Numune Hospital, Ankara, Turkey
| | - Mehmet B. Uğur
- Department of Otorhinolaryngology, Head and Neck Surgery, Ankara Gazi University Hospital, Ankara, Turkey
| | - Recep Karamert
- Department of Otorhinolaryngology, Head and Neck Surgery, Ankara Gazi University Hospital, Ankara, Turkey
| | - Sinem Aytekin
- Department of Pathology, Ankara Gazi University Hospital, Ankara, Turkey
| | - Burak Kabiş
- Department of Audiology, Ankara Gazi University Hospital, Ankara, Turkey
| | - Mehmet Düzlü
- Department of Otorhinolaryngology, Head and Neck Surgery, Ankara Gazi University Hospital, Ankara, Turkey
| | - Cemile Seymen
- Department of Histology and Embryology, Ankara Gazi University Hospital, Ankara, Turkey
| | - Çiğdem Elmas
- Department of Histology and Embryology, Ankara Gazi University Hospital, Ankara, Turkey
| | - Çağıl Gökdoğan
- Department of Audiology, Ankara Gazi University Hospital, Ankara, Turkey
| | - Serkan Ünlü
- Pharmacology Department, Ankara Gazi University Institute of Health Sciences, Ankara, Turkey
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10
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Moshiri M, Hosseiniyan SM, Moallem SA, Hadizadeh F, Jafarian AH, Ghadiri A, Hoseini T, Seifi M, Etemad L. The effects of vitamin B 12 on the brain damages caused by methamphetamine in mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2018; 21:434-438. [PMID: 29796230 PMCID: PMC5960763 DOI: 10.22038/ijbms.2018.23362.5897] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objective(s): Methamphetamine (METH) is a powerful stimulant drug that directly affects the brain and induces neurological deficits. B12 is a water-soluble vitamin (vit) that is reported to attenuate neuronal degeneration. The goal of the present study is to investigate the effect of vitamin B12 on METH’s neurodegenerative changes. Materials and Methods: Two groups of 6 animals received METH (10 mg/kg, interaperitoneally (IP)) four times with a 2 hr interval. Thirty mins before METH administration, vit B12 (1 mg/kg) or normal saline were injected IP. Animals were sacrificed 3 days after the last administration. Caspase proteins levels were measured by Western blotting. Also, samples were examined by TUNEL assay to detect the presence of DNA fragmentation. Reduced glutathione (GSH) was also determined by the Ellman method. Results: The pathological findings showed that vit B12 attenuates the gliosis induced by METH. Vit B12 administration also significantly decreased the apoptotic index in the striatum and the cerebral cortex (P<0.001). It also reduced caspase markers compared to the control (P<0.01 and P<0.001, respectively). Interestingly, co-administration of METH and Vit B12 elevates the levels of GSH in both regions of the brain and returned it to normal levels compared to the METH group. Conclusion: The current study suggests that parenteral vit B12 at safe doses may be a promising treatment for METH-induced brain damage via inhibition of neuron apoptosis and increasing the reduced GSH level. Research focusing on the mechanisms involved in the protective responses of vit B12 can be helpful in providing a novel therapeutic agent against METH-induced neurotoxicity.
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Affiliation(s)
- Mohammad Moshiri
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mojtaba Hosseiniyan
- Department of Toxicology, Faculty of Pharmacy, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Seyed Adel Moallem
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Ahl Al Bayt, Karbala, Iraq
| | - Farzin Hadizadeh
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ameneh Ghadiri
- Department of Toxicology, Faculty of Pharmacy, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Toktam Hoseini
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Seifi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leila Etemad
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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11
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Horasanli B, Hasturk AE, Arikan M, Togral G, Helvacioglu F, Dagdeviren A, Mut S, Harman F, Argun G. Comparative evaluation of the electrophysiological, functional and ultrastructural effects of alpha lipoic acid and cyanocobalamin administration in a rat model of sciatic nerve injury. J Back Musculoskelet Rehabil 2017; 30:967-974. [PMID: 28968230 DOI: 10.3233/bmr-150386] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Vitamin B12 and alpha lipoic acid (ALA) are known to promote functional and morphological recovery after peripheral nerve injury. OBJECTIVE To compare the regenerative and neuroprotective effects of vitamin B12 and ALA treatment after sciatic nerve injury. METHODS A total of 40 rats were randomly assigned to control (sciatic nerve exposure without injury or anastomosis), sham (sciatic nerve injury and epineural anastomosis were performed but no treatment was administered), PS (isotonic saline was administered for 12 weeks after surgery), ALA (2 mg/kg ALA was administered for 12 weeks after surgery), and vitamin B12 groups (2 mg/kg cyanocobalamin was administered for 12 weeks after surgery). Functional recovery was determined by footprint analysis, in vivo neurophysiology, and ex vivo histopathological examination. RESULTS ALA treatment produced significant improvements in sciatic functional index values and non-significant improvements on electroneuromyography compared to vitamin B12 treatment. Upon histopathological examination, the regenerative effects of ALA were relevant to axonal structural recovery whereas vitamin B12 produced greater improvements in edema and myelination. CONCLUSIONS While both vitamin B12 and ALA produced improvements after sciatic nerve injury, ALA was more functionally effective. The unique ultrastructural effects of vitamin B12 and ALA treatment should be considered in future studies.
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Affiliation(s)
| | - Askin Esen Hasturk
- Department of Neurosurgery, Oncology Training and Research Hospital, Ankara, Turkey
| | - Murat Arikan
- Department of Orthopedics and Traumatology, Oncology Training and Research Hospital, Ankara, Turkey
| | - Guray Togral
- Department of Orthopedics and Traumatology, Oncology Training and Research Hospital, Ankara, Turkey
| | - Fatma Helvacioglu
- Department of Histology and Embriology, Baskent University Hospital, Ankara, Turkey
| | - Atilla Dagdeviren
- Department of Histology and Embriology, Baskent University Hospital, Ankara, Turkey
| | - Senem Mut
- Department of Neurology, Faculty of Medicine, Near East University, Lefkosa, Mersin, Turkey
| | - Ferhat Harman
- Department of Neurosurgery, Faculty of Medicine, Near East University, Lefkosa, Mersin, Turkey
| | - Guldeniz Argun
- Department of Anesthesiology and Reanimation, Oncology Training and Research Hospital, Ankara, Turkey
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12
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Meral I, Esrefoglu M, Dar KA, Ustunova S, Aydin MS, Demirtas M, Arifoglu Y. Effects of Nigella sativa on apoptosis and GABA A receptor density in cerebral cortical and hippocampal neurons in pentylenetetrazol induced kindling in rats. Biotech Histochem 2017; 91:493-500. [PMID: 27849392 DOI: 10.1080/10520295.2016.1245866] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
We investigated the effects of Nigella sativa on apoptosis and gamma-aminobutyric acid (GABAA) receptor density in cerebral cortical and hippocampal neurons in a pentylenetetrazol (PTZ)-induced kindling model in rats. The PTZ kindling model was produced by injecting PTZ in subconvulsive doses to rats on days 1, 3, 5, 8, 10, 12, 15, 17, 19, 22 and 24 of the study into animals of PTZ treated (PTZ) and PTZ + N. sativa treated (PTZ + NS) groups. Clonic and tonic seizures were induced by injecting a convulsive dose of PTZ on day 26 of the study. Rats in the PTZ + NS group were treated also with a 10 mg/kg methanolic extract of N. sativa 2 h before each PTZ injection. Rats in the control group were treated with 4 ml/kg saline. The number of neurons that expressed GABAA receptors in the hippocampus and cerebral cortex of rats in the PTZ and PTZ + NS groups increased significantly. There was no significant difference in the number of GABAA receptors between the PTZ and PTZ + NS groups. GABAA receptor density of the neurons in the cerebral cortex, but not hippocampus, was increased in PTZ group compared to controls. We observed a significant increase in the number of apoptotic neurons in the cerebral cortex of rats of both the PTZ and PTZ + NS groups compared to controls. We observed a significant decrease in the number of the apoptotic neurons in the cerebral cortex of rats in the PTZ + NS group compared to the PTZ group. N. sativa treatment ameliorated the PTZ induced neurodegeneration in the cerebral cortex as reflected by neuronal apoptosis and neuronal GABAA receptor frequency.
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Affiliation(s)
- I Meral
- a Department of Physiology , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
| | - M Esrefoglu
- b Department of Histology and Embryology , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
| | - K A Dar
- c Department of Biology , Faculty of Science, Istanbul University , Istanbul , Turkey
| | - S Ustunova
- a Department of Physiology , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
| | - M S Aydin
- b Department of Histology and Embryology , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
| | - M Demirtas
- a Department of Physiology , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
| | - Y Arifoglu
- d Department of Anatomy , School of Medicine, Bezmialem Vakif University , Istanbul , Turkey
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13
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Hobbenaghi R, Javanbakht J, Hosseini E, Mohammadi S, Rajabian M, Moayeri P, Hassan MA. Retraction Note: Neuropathological and neuroprotective features of vitamin B 12 on the dorsal spinal ganglion of rats after the experimental crush of sciatic nerve: an experimental study. Diagn Pathol 2016; 11:109. [PMID: 27802828 PMCID: PMC5090878 DOI: 10.1186/s13000-016-0578-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 10/19/2016] [Indexed: 11/17/2022] Open
Affiliation(s)
- Rahim Hobbenaghi
- Department of Pathology, Faculty of Veterinary Medicine, University of Urmia, Urmia, Iran
| | - Javad Javanbakht
- Department of Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Ehan Hosseini
- Faculty of Para Veterinary Medicine, Ilam University, Ilam, Iran
| | - Shahin Mohammadi
- Graduate Faculty of Veterinary Medicine, University of Urmia, Urmia, Iran
| | - Mojtaba Rajabian
- Food Hygiene Department, University of Shahekord, Shahekord, Iran
| | - Pedram Moayeri
- Resident of Large Animal Internal Medicine Department, University of Shahekord, Shahekord, Iran
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14
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Moosavirad SA, Rabbani M, Sharifzadeh M, Hosseini-Sharifabad A. Protective effect of vitamin C, vitamin B12 and omega-3 on lead-induced memory impairment in rat. Res Pharm Sci 2016; 11:390-396. [PMID: 27920821 PMCID: PMC5122828 DOI: 10.4103/1735-5362.192490] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Lead belongs to the heavy metal group and is considered as an environmental contaminant. Acute or chronic contact to lead can change the physiological function of human organs. One of the most important disorders following the lead exposure is neurotoxicity. Lead neurotoxicity consists of the neurobehavioral disturbances like cognitive impairment. The aim of the current study is to evaluate the possible protective effect of vitamin C (Vit C), vitamin B12 (Vit B12), omega 3 (ω-3), or their combination on the lead-induced memory disorder. Adult wistar rats were orally administered Vit C (120 mg/kg/day) or Vit B12 (1 mg/kg/day) or ω-3 (1000 mg/kg/day) or their combination for 3 weeks in groups of 7 animals each. Then lead acetate (15 mg/kg/day) was injected intraperitoneally for one week to all pretreated animals. The control group received normal saline as a vehicle while the positive control for cognitive impairment received just lead acetate. At the end of treatments animal memories were evaluated in Object Recognition Task. The results showed, although 15 mg/kg lead acetate significantly declines the memory-evaluating parameters, pretreatment with Vit C, Vit B12, ω-3, or their combination considerably inverted the lead induced reduction in discrimination (d2) index (P < 0.001) and recognition (R) index (P < 0.001, P < 0.05, P < 0.05, and P < 0.001, respectively). Our findings indicate while lead acetate impairs spatial memory in rat, administration of Vit C, Vit B12, ω-3, or their combination prior to the lead exposure inhibits the lead induced cognitive loss. There was no remarkable difference in this effect between the used supplements.
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Affiliation(s)
- Saeedeh Alsadat Moosavirad
- Department of Pharmacology and Toxicology, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Mohammad Rabbani
- Department of Pharmacology and Toxicology, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Mohammad Sharifzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, I.R. Iran
| | - Ali Hosseini-Sharifabad
- Department of Pharmacology and Toxicology, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
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15
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Emir A, Kalkan Y, Bostan H. Histopathological effects of intramuscular metamizole sodium on rat sciatic nerve. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2016; 19:829-836. [PMID: 27746863 PMCID: PMC5048117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVES We investigated the histopathological effects of metamizole sodium (MS) on the sciatic nerve. MATERIALS AND METHODS This study was performed using 48 adult male Wistar albino rats. Ten groups were constituted with 6 rats in each group. MS injection into the sciatic nerve (group 1), MS injection into the muscle [group 3 (50 mg/kg, 0.4 ml) and group 5 (50 mg/kg, 0.8 ml)], MS injection into the muscle cavity in the vicinity of the sciatic nerve [group 2 (50 mg/kg, 0.4 ml) and group 4 (50 mg/kg, 0.8 ml)], normal saline injection into the muscle in the vicinity of the sciatic nerve [group 6A (0.4 ml) and 6B (0.8 ml)], subjected to injury by drilling the entire layer of nerve without injecting any drug, normal saline injection in the sciatic nerve, and control group. Nerve and muscle samples were taken 7 days after administrations. Tissue sections were stained using a hematoxylin and eosin-Luxol® fast blue stain, assessed by a histologist. RESULTS The levels of axonal degeneration of the rats in groups 1, 2, 3, 4, 5, 6A, and 8 were found to be significantly higher compared to the levels of the rats in the control group (P<0.05). Myelin degeneration of the rats in all groups was found to be significantly higher compared to myelin degeneration of the rats in the control group (P<0.05). CONCLUSION It was observed that MS could lead to injury in the sciatic nerve with a toxic effect due to diffusion.
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Affiliation(s)
- Abdurrahman Emir
- Bitlis Branch Directorate, Council of Forensic Medicine, The Ministry of Justice, Bitlis, Turkey,Corresponding author: Abdurrahman Emir. Bitlis Branch Directorate, Council of Forensic Medicine, The Ministry of Justice, Bitlis, Turkey. Tel: +90-434-2266300; Fax: +90-434-2266303;
| | - Yıldıray Kalkan
- Department of Histology, Medical Faculty, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Habib Bostan
- The Ministry of Justice, Council of Forensic Medicine, Istanbul, Turkey
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Abstract
The aim of the present study was to evaluate whether tissue levels of vitamin B complex and vitamin B12 were altered after crush-induced peripheral nerve injury in an experimental rat model. A total of 80 male Wistar rats were randomized into one control (n = 8) and six study groups (1, 6, 12, 24 hours, 3, and 7 days after experimental nerve injury; n = 12 for each group). Crush-induced peripheral nerve injury was performed on the sciatic nerves of rats in six study groups. Tissue samples from the sites of peripheral nerve injury were obtained at 1, 6, 12, 24 hours, 3 and 7 days after experimental nerve injury. Enzyme-linked immunosorbent assay results showed that tissue levels of vitamin B complex and vitamin B12 in the injured sciatic nerve were significantly greater at 1 and 12 hours after experimental nerve injury, while they were significantly lower at 7 days than in control group. Tissue level of vitamin B12 in the injured sciatic nerve was significantly lower at 1, 6, 12 and 24 hours than in the control group. These results suggest that tissue levels of vitamin B complex and vitamin B12 vary with progression of crush-induced peripheral nerve injury, and supplementation of these vitamins in the acute period may be beneficial for acceleration of nerve regeneration.
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Affiliation(s)
- Idiris Altun
- Department of Neurosurgery, Kahramanmaras Sutcu Imam University Medical Faculty, Kahramanmaras, Turkey
| | - Ergül Belge Kurutaş
- Department of Biochemistry, Kahramanmaras Sutcu Imam University Medical Faculty, Kahramanmaras, Turkey
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17
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Demetoglu U, Ozkan G, Simsek HO. Facial nerve paralysis following endodontic treatment of lower first molar. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, MEDICINE, AND PATHOLOGY 2016. [DOI: 10.1016/j.ajoms.2015.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Effect of Frankincense Extract on Nerve Recovery in the Rat Sciatic Nerve Damage Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:3617216. [PMID: 27143985 PMCID: PMC4842080 DOI: 10.1155/2016/3617216] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/31/2016] [Accepted: 03/17/2016] [Indexed: 12/01/2022]
Abstract
This study investigated the effect of frankincense extract on peripheral nerve regeneration in a crush injury rat model. Forty-eight Sprague-Dawley rats were randomly divided into four groups: control and frankincense extract low-, medium-, and high-dose groups. At days 7, 14, 21, and 28 following the surgery, nerve regeneration and functional recovery were evaluated using the sciatic functional index (SFI), expression of GAP-43, and the proliferation of Schwann cells (SCs) in vivo and in vitro. At day 7, the SFI in the frankincense extract high-dose group was significantly improved compared with the control group. After day 14, SFI was significantly improved in the medium- and high-dose groups. There was no significant difference in GAP-43 expression among the groups at day 7. However, after day 14, expression of GAP-43 in the high-dose group was higher than that in the control group. Histological evaluation showed that the injured nerve of frankincense extract high-dose group recovered better than the other groups 28 days after surgery. Further, S100 immunohistochemical staining, MTT colorimetry, and flow cytometry assays all showed that frankincense extract could promote the proliferation of SCs. In conclusion, frankincense extract is able to promote sciatic nerve regeneration and improve the function of a crushed sciatic nerve. This study provides a new direction for the repair of peripheral nerve injury.
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19
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Gümüs B, Kuyucu E, Erbas O, Kazimoglu C, Oltulu F, Bora OA. Effect of oxytocin administration on nerve recovery in the rat sciatic nerve damage model. J Orthop Surg Res 2015; 10:161. [PMID: 26466786 PMCID: PMC4607250 DOI: 10.1186/s13018-015-0301-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/25/2015] [Indexed: 01/28/2023] Open
Abstract
Background Growth factors such as nerve growth factor (NGF) and insulin-like growth factor-1 (IGF-1) have been shown to play a role in the healing process of nerve injury. Recent researches have also shown that oxytocin administration activates these growth factors of importance for the healing of nerve tissue. The objective of the present study was to evaluate the effects of oxytocin on peripheral nerve regeneration in rats. Methods Twenty-four male Sprague-Dawley rats were underwent transection damage model on the right sciatic nerve and defective damage model on the left sciatic nerve. The animals were assigned to one of two groups: control group or treatment group (received 80 mg/kg oxytocin intraperitoneally for 12 weeks). The sciatic nerve was examined, both functionally (on the basis of climbing platform test) and histologically (on the basis of axon count), 3, 6, 9, and 12 weeks after the injury. Also, stereomicroscopic and electrophysiological evaluations were carried out. Results Significantly greater improvements in electrophysiological recordings and improved functional outcome measures were presented in the treatment group at 12-week follow-up. Stereomicroscopic examinations disclosed prominent increases in vascularization on proximal cut edges in the oxytocin group in comparison with the control group. Higher axon counts were also found in this group. Conclusion Intraperitoneal oxytocin administration resulted in accelerated functional, histological, and electrophysiological recovery after different sciatic injury models in rats.
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Affiliation(s)
- Bilal Gümüs
- Department of Orthopaedics and Traumatology, Izmir Ataturk Training and Research Hospital, Izmir, Turkey
| | - Ersin Kuyucu
- Department of Orthopaedics and Traumatology, Izmir Ataturk Training and Research Hospital, Izmir, Turkey. .,Orthopaedics & Traumatology, Istanbul Medipol University, TEM Avrupa Göztepe çıkışı, No: 1 Bağcılar, Istanbul, Turkey.
| | - Oytun Erbas
- Department of Physiology, Ege University, Izmir, Turkey
| | - Cemal Kazimoglu
- Department of Orthopedics, Katip Celebi University Hospital, Izmir, Turkey
| | - Fatih Oltulu
- Department of Histology and Embryology, Ege University, Izmir, Turkey
| | - Osman Arslan Bora
- Department of Orthopaedics and Traumatology, Izmir Ataturk Training and Research Hospital, Izmir, Turkey
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20
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Celik M, Kose A, Kose D, Karakus E, Akpinar E, Calik M, Dostbil A, Calikoglu C, Aksoy M, Ozel L. The double-edged sword: effects of pregabalin on experimentally induced sciatic nerve transection and crush injury in rats. Int J Neurosci 2014; 125:845-54. [PMID: 25340254 DOI: 10.3109/00207454.2014.978976] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM The aim of this study was to research the effects of pregabalin on experimentally induced peripheral nerve crush injuries in rats. MATERIAL AND METHOD Forty-two adult female Wistar albino rats were divided into seven groups: 1st group: healthy; 2nd group: axonotmesis control; 3rd group: anastomosis control; 4th group: axonotmesis+30 mg/kg of pregabalin; 5th group: axonotmesis+60 mg/kg of pregabalin; 6th group: anastomosis+30 mg/kg of pregabalin; 7th group: anastomosis+60 mg/kg of pregabalin. Evaluation of the sciatic functional index (SFI) was performed one day before and on days 7, 14, 21, and 28 following surgery. The right sciatic nerves of all animals were examined histopathologically and molecularly. RESULTS After 28 days post-injury, the histopathological regeneration in peripheral nerve injuries for pregabalin 30 mg/kg treated groups was significantly better than that of the control groups. Also the SFI increases and TGF-β gene expression up-regulation were significantly better in pregabalin 30 mg/kg treated groups. CONCLUSION The histopathological, functional and molecular data suggest that pregabalin 30 mg/kg treatment in axonotmesis and anostomosis groups improves nerve regeneration and increases SFI in peripheral nerve injuries by activating antiinflammatory cytokine TGF-β1.
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Affiliation(s)
- Mine Celik
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Ahmet Kose
- b Department of Orthophedics and Traumatology, Horasan Public Hospital , Erzurum , Turkey
| | - Duygu Kose
- c Ataturk University, Faculty of Medicine, Department of Pharmacology , Erzurum , Turkey
| | - Emre Karakus
- d Ataturk University, Faculty of Veterinary, Department of Pharmacology and Toxicology , Erzurum , Turkey
| | - Erol Akpinar
- c Ataturk University, Faculty of Medicine, Department of Pharmacology , Erzurum , Turkey
| | - Muhammed Calik
- e Ataturk University, Faculty of Medicine, Department of Pathology , Erzurum , Turkey
| | - Aysenur Dostbil
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Cagatay Calikoglu
- f Ataturk University, Faculty of Medicine, Department of Brain Surgery , Erzurum , Turkey
| | - Mehmet Aksoy
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Lutfu Ozel
- g Ataturk University, Faculty of Medicine, Department of Neurology , Erzurum , Turkey
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21
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Mekaj AY, Morina AA, Bytyqi CI, Mekaj YH, Duci SB. Application of topical pharmacological agents at the site of peripheral nerve injury and methods used for evaluating the success of the regenerative process. J Orthop Surg Res 2014; 9:94. [PMID: 25303779 PMCID: PMC4198735 DOI: 10.1186/s13018-014-0094-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Accepted: 09/29/2014] [Indexed: 12/17/2022] Open
Abstract
Traumatic injuries of the peripheral nerves are very common. Surgical repair of the damaged nerve is often complicated by scar tissue formation around the damaged nerve itself. The main objective of this study is to present the recent data from animal experimental studies where pharmacological topical agents are used at the site of peripheral nerve repair. Some of the most commonly topical agents used are tacrolimus (FK506), hyaluronic acid and its derivatives, and melatonin, whereas methylprednisolone and vitamin B12 have been used less. These studies have shown that the abovementioned substances have neuroprotective and neuroregenerative properties though different mechanisms. The successes of the regenerative process of the nerve repair in experimental research, using topical agents, can be evaluated using variety of methods such as morphological, electrophysiologic, and functional evaluation. However, most authors agree that despite good microsurgical repair and topical application of these substances, full regeneration and functional recovery of the nerve injured are almost never achieved.
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Affiliation(s)
| | | | | | - Ymer H Mekaj
- Institute of Pathophysiology, Faculty of Medicine, University of Prishtina, Rrethi i spitalit p,n,, Prishtina 10000, Kosovo.
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22
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Liu Y, Liu Z, Li X, Luo B, Xiong J, Gan W, Jiang M, Zhang Z, Schluesener HJ, Zhang Z. Accumulation of connective tissue growth factor+ cells during the early phase of rat traumatic brain injury. Diagn Pathol 2014; 9:141. [PMID: 25012526 PMCID: PMC4227000 DOI: 10.1186/1746-1596-9-141] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Accepted: 07/01/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Glial scar formation is a common histopathological feature of traumatic brain injury (TBI). Astrogliosis and expression of transforming growth factor beta (TGF-β) are key components of scar formation and blood-brain barrier modulation. Connective tissue growth factor (CTGF) is considered a cytokine mediating the effects of TGF-β. METHODS Here, we studied the CTGF expression in an open-skull weight-drop-induced TBI, with a focus on the early phase, most amenable to therapy. RESULTS In normal rat brains of our study, CTGF+ cells were rarely observed. Significant parenchymal accumulation of CTGF+ non-neuron cells was observed 72 h post-TBI and increased continuously during the investigating time. We also observed that the accumulated CTGF+ non-neuron cells were mainly distributed in the perilesional areas and showed activated astrocyte phenotypes with typical stellate morphologic characteristics. CONCLUSION Our observations demonstrated the time-dependent and lesion-associated accumulation of cellular CTGF expression in TBI, suggesting a pathological role of CTGF in TBI. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/3963462091241165.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Zhiren Zhang
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Main Street, Chongqing 400038, People's Republic of China.
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Abdi FS, Jamshidi S, Moosakhani F, Sasani F. Detection of Helicobacter spp. DNA in the colonic biopsies of stray dogs: molecular and histopathological investigations. Diagn Pathol 2014; 9:50. [PMID: 24602369 PMCID: PMC4045921 DOI: 10.1186/1746-1596-9-50] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 02/10/2014] [Indexed: 01/18/2023] Open
Abstract
Abstract Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1957989294118782.
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Affiliation(s)
- Fatemeh Soghra Abdi
- Department of Small Animal Internal Medicine, Resident of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University (IAU), NO,14, Corner of Parvaz 1, Payam Blvd,, Saadat Abad, Tehran, Iran.
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24
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Yang Z, Sun J, Yang X, Zhang Z, Lou B, Xiong J, Schluesener HJ, Zhang Z. Accumulation of fascin+ cells during experimental autoimmune neuritis. Diagn Pathol 2013; 8:213. [PMID: 24369046 PMCID: PMC3877979 DOI: 10.1186/1746-1596-8-213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 11/27/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Experimental autoimmune neuritis (EAN) is a well-known animal model of human demyelinating polyneuropathies and is characterized by inflammation and demyelination in the peripheral nervous system. Fascin is an evolutionarily highly conserved cytoskeletal protein of 55 kDa containing two actin binding domains that cross-link filamentous actin to hexagonal bundles. METHODS Here we have studied by immunohistochemistry the spatiotemporal accumulation of Fascin + cells in sciatic nerves of EAN rats. RESULTS A robust accumulation of Fascin + cell was observed in the peripheral nervous system of EAN which was correlated with the severity of neurological signs in EAN. CONCLUSION Our results suggest a pathological role of Fascin in EAN. VIRTUAL SLIDES The virtual slides for this article can be found here: http://www.diagnosticphatology.diagnomx.eu/vs/6734593451114811.
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Affiliation(s)
| | | | | | | | | | | | | | - Zhiren Zhang
- Institute of Immunology, Third Military Medical University of PLA, 30 Gaotanyan Main Street, Chongqing 400038, People's Republic of China.
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Hobbenaghi R, Javanbakht J, Sadeghzadeh S, Kheradmand D, Abdi FS, Jaberi MH, Mohammadiyan MR, Khadivar F, Mollaei Y. Neuroprotective effects of Nigella sativa extract on cell death in hippocampal neurons following experimental global cerebral ischemia-reperfusion injury in rats. J Neurol Sci 2013; 337:74-9. [PMID: 24314720 DOI: 10.1016/j.jns.2013.11.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/12/2013] [Accepted: 11/13/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Global cerebral ischemia followed by reperfusion, leads to extensive neuronal damage, particularly the neurons in the hippocampal CA region. Recent studies have demonstrated that pharmacological agents, such as Nigella sativa L. (Ranunculaceae) that is an annual herbaceous flowering plant, given at the time of reperfusion afforded protection against ischemia, which is referred to as pharmacological post conditioning. OBJECTIVES The aim of this study was to evaluate the neuroprotective effects of Nigella sativa in the hippocampus neurons of rats exposed to global ischemia/reperfusion. METHODS In the present study 30 Wister rats (200-250 g) were divided into 5 groups namely sham (operated without treatment), control (operation with normal saline treatment), and 3 treatment groups with Nigella sativa 1mg/kg, 10mg/kg and 50mg/kg. Firstly, the animals were anesthetized by ketamin and xylazine, and then the right carotid artery was operated upon dissection of the soft tissues around it and ligation by a clamp for 20 min. The Nigella sativa extraction was used during surgery through IP route and after 72 h the animals were euthanized and their brain removed, fixed and prepared for histopathological examinations. RESULTS In treatment group (1mg/kg) the interstitial neuron frequency which contains cytoplasmic edema, along with CA, was 28 cells, whereas the edematous astrocyte number along with CA in this group was 115 cells. In the treatment group (10mg/kg) the interstitial neurons of cornua ammonis (CA) were 15 and the edematous astrocytes were 122 cells and in the treatment group (50mg/kg) the number of edematous interstitial neurons was 7 cells in distance of 2900 μ of CA. In such group the number of edematous interstitial neurons was less as well. In this group the appearance of CA cells was more similar to control group, not only the edema decreased in interstitial and astrocyte cells, but it dramatically decreased in pyramidal cells. Our study revealed that the Nigella sativa extraction could prevent intracellular edema of interneurons in 50mg/kg group significantly compared to sham group (91.6%) and the extraction (50mg/kg) decreased edematous astrocytes 67.1% dramatically compared to sham group. Furthermore there was no significant difference between control and two treatment groups (1 and 10mg/kg) (P>0.05), CONCLUSION: Our finding suggested that the N. sativa extraction could prevent the cerebral edema which the best result was obtained in 50mg/kg group; consequently such extraction is able to prevent ischemia/reperfusion in the hippocampus tissue of the brain.
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Affiliation(s)
- R Hobbenaghi
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - J Javanbakht
- Department of Pathology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran.
| | - Sh Sadeghzadeh
- Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - D Kheradmand
- Islamic Azad University of Mashhad, Faculty of Medicine, Mashhad, Iran
| | - F S Abdi
- Small Animal Internal Medicine Resident of Islamic Azad University, Science and Research Branch of Tehran, Iran
| | - M H Jaberi
- Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - M R Mohammadiyan
- Department of Food Hygiene, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
| | - F Khadivar
- Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
| | - Y Mollaei
- Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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