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Mei H, Tan J, Hu Y, Shi X, Liu Y, Jia F, Xu F. Developing a trans-multisynaptic tracer to map the neural circuit of recovered sciatic nerve after treatment with nerve growth factor. IBRO Neurosci Rep 2023; 15:235-241. [PMID: 37841085 PMCID: PMC10570716 DOI: 10.1016/j.ibneur.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/19/2023] [Accepted: 09/30/2023] [Indexed: 10/17/2023] Open
Abstract
Nerve growth factor (NGF) has been shown to support the survival and differentiation of neurons. In this study, we first developed a retrograde trans-multisynaptic tracer PRV580 expressing the mCherry fluorescent protein based on pseudorabies virus Bartha strain to map the neural circuit of sciatic nerve. Secondly, the newly developed PRV580 was used to map the neural circuit of the recovering sciatic nerve upon treatment with NGF. Our results showed that red signals from PRV580 were observed in various brain regions. Among these regions, many areas of the pyramidal system and the extra-pyramidal system had been mapped, accounting for as much as 56.8 % of the total inputs. Furthermore, we found that NGF could significantly increase the ratio of total input (29.05 %) compared to PBS (3.65 %), indicating that NGF indeed can aid in the repair of injured sciatic nerve. These findings indicated that NGF has therapeutic ability for the treatment of peripheral nerve injuries and virus-based tracers can be used to monitor the recovery.
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Affiliation(s)
- Hongjun Mei
- Department of Orthopaedics, The Fifth hospital of Wuhan, Wuhan 430050, China
| | - Junfeng Tan
- Department of Orthopaedics, The Fifth hospital of Wuhan, Wuhan 430050, China
| | - You Hu
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xiangwei Shi
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- Shenzhen-Hong Kong Institute of Brain Science, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Liu
- Department of Orthopaedics, The Fifth hospital of Wuhan, Wuhan 430050, China
| | - Fan Jia
- Shenzhen-Hong Kong Institute of Brain Science, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuqiang Xu
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- Shenzhen-Hong Kong Institute of Brain Science, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Aslam MR, Muhammad Asif H, Ahmad K, Jabbar S, Hayee A, Sagheer MS, Rehman JU, Khalid S, Hashmi AS, Rajpoot SR, Sharif A. Global impact and contributing factors in varicose vein disease development. SAGE Open Med 2022; 10:20503121221118992. [PMID: 36051783 PMCID: PMC9425889 DOI: 10.1177/20503121221118992] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022] Open
Abstract
Varicose veins are convoluted, expanded, and stretched subcutaneous veins of the lower leg and are the most frequently reported medical condition. This condition has a higher prevalence in Western and developed countries. Inadequacy of the valves results in reflux of blood in the veins of the lower leg. The present study aims to describe the epidemiology and contributing factors (risk factors and pathological factors) in the development of varicose veins disease. PubMed/Medline, Science Direct, Google Scholar, SciFinder, Scopus, and Web of Science databases were explored to include potential research and review articles. Finally, 65 articles were considered appropriate to include in the study. Pain, swelling, heaviness, and tingling of the lower limbs are the most common sign and symptoms caused by varicose veins while in some individuals it is asymptomatic. The Prevalence of varicose veins varies geographically. Currently, it is reported that globally about 2%–73% of the population is affected by varicose veins while the prevalence rate in Pakistan is 16%–20%. Different risk factors associated with the advancement of varicose veins are age, gender, occupation, pregnancy, family history, smoking, BMI and obesity, exercise, genetic factor, and current lifestyle. In varicose veins, some contributory elements may also play an important role in the disease development, incorporating constant venous wall aggravation, hereditary variation, and persistent venous hypertension. This condition has now turned into a curable issue that was previously viewed broadly as less important for treatment, determining the individual’s satisfaction. Moreover, the mechanisms behind the risk factors involve diet, physical work, and hormonal contribution. These are more likely to be explored.
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Affiliation(s)
- Muhammad Rahil Aslam
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Hafiz Muhammad Asif
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Khalil Ahmad
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sana Jabbar
- Department of Eastern Medicine, Qarshi University, Lahore, Pakistan
| | - Abdul Hayee
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Shahid Sagheer
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Jalil Ur Rehman
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sana Khalid
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | - Abdul Sattar Hashmi
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sehrish Rana Rajpoot
- University College of Conventional Medicine, Faculty of Medicine and Allied Health Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Aamir Sharif
- Department of Pathology, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
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Venous congestion as a central mechanism of radiculopathies. Joint Bone Spine 2021; 89:105291. [PMID: 34653602 DOI: 10.1016/j.jbspin.2021.105291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023]
Abstract
Compression of roots/nerves can disrupt some of their functions, but does not necessarily cause pain. This is illustrated by the frequency of nearly asymptomatic spinal stenosis or disc herniations. In fact, pain of radiculopathies (and nerve entrapments) may mostly be the consequence of intraneural oedema induced by microscopical venous stasis around roots/spinal ganglia (or nerves) not or poorly shown by imaging. This narrative review first lists arguments for a role of congestion of vasa-nervorum in the pathophysiology of radiculopathies, including those induced by disc herniation and spinal stenosis, but also other sources of overpressures in spinal venous plexuses (pregnancy, vena cava atresia and thrombosis, portal hypertension, epidural varices, arterio-venous fistula, vertebral hemangioma or hemangioblastoma). It also details sources of venous congestion around nerves outside the spine, from pelvis (May-Thurner syndrome, Nut-cracker syndrome) to buttocks (superior and inferior gluteal veins), and even thighs and legs. A better recognition of a preeminent role of venous congestion in radiculopathies, plexopathies, and nerve entrapments, should have major consequences: (i) discard the dogma that compression is mandatory to induce root/nerve suffering, since root/nerve adherences in two locations can impair blood flow in vasa-nervorum through root/nerve stretching; (ii) implementation of sensitive techniques to visualise impingement of blood flow around or within roots and nerves; (iii) better prevention of roots/nerves adherence, or arachnoiditis induced by extravascular fibrin deposition secondary to venous stasis.; (iv) optimizing treatments dampening clot formation and/or extravascular fibrin leakage in the intradural/peridural spaces, or around roots/nerves, like guided injection of tissue plasminogen activator.
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Liu J, Song G, Zhao G, Meng T. Effect of oral magnesium supplementation for relieving leg cramps during pregnancy: A meta-analysis of randomized controlled trials. Taiwan J Obstet Gynecol 2021; 60:609-614. [PMID: 34247796 DOI: 10.1016/j.tjog.2021.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2021] [Indexed: 10/20/2022] Open
Abstract
Leg cramps are one of the common symptoms during pregnancy. About 30%-50% of pregnant women experience leg cramps twice a week. Leg cramps may cause severe pain and sleep disturbance, hinder performance of daily activities and may lengthen the duration of pregnancy and the type of childbirth. Several randomized controlled trial (RCT) studies focused on the effects of the magnesium supplement for relieving leg cramps. However, the results were inconsistent. Five databases were searched from their inception to July 2, 2020. We summarized the weighted mean difference (WMD) with 95% CIs for "the frequency of leg cramps after treatment", and summarized the odds ratio (OR) with 95% confidence intervals (CIs) for "recovery from leg cramps" and "side effects". Four RCTs with a total of 332 pregnant women were identified. The frequency of leg cramps after treatment was not decreased in the treatment group compared to the control group (WMD = -0.47, 95% CI: -1.14-0.20, P = 0.167). Magnesium supplementation cannot improve the recovery from leg cramps compared to the control group (OR = 0.47, 95% CI: 0.14-1.52, P = 0.207). Magnesium supplementation had no significant side effects in the treatment group compared to the control group (OR = 1.82, 95% CI: 0.90-3.69, P = 0.094). Oral magnesium supplementation is not effective in the treatment of leg cramps during pregnancy. PROSPERO: CRD42020196572.
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Affiliation(s)
- Jing Liu
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China.
| | - Guang Song
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Ge Zhao
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China.
| | - Tao Meng
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China.
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Khryshchanovich V, Skobeleva N. Medical prevention and management of varicose vein disease during pregnancy. ROSSIISKII VESTNIK AKUSHERA-GINEKOLOGA 2021. [DOI: 10.17116/rosakush20212104127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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de Araújo CAL, de Lorena SB, Cavalcanti GCDS, Leão GLDS, Tenório GP, Alves JGB. Oral magnesium supplementation for leg cramps in pregnancy-An observational controlled trial. PLoS One 2020; 15:e0227497. [PMID: 31923242 PMCID: PMC6953803 DOI: 10.1371/journal.pone.0227497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/26/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Oral magnesium for leg cramps treatment in pregnancy is a controversial issue according to recent Cochrane systematic review. This study aims to evaluate the efficacy of Mg++ supplementation in leg cramps treatment in pregnancy. METHODS This observational clinical trial studied 132 pregnant women with leg cramps in the first trimester of pregnancy. At baseline, 74 (56.3%) had two leg cramps episodes per week, 28 (21.1%) three episodes, 13 (9.8%) four episodes and 9 (6.8%) five or more episodes. They were randomized 1:1 to 300 mg/day of oral Mg++ citrate (n = 66) or placebo (n = 66). The primary outcome was the frequency of leg cramps episodes per week reported by pregnant women. Secondary outcomes were the ocurrence of leg cramps and oral magnesium side effects. RESULTS 130 pregnant women completed the study and the two groups were comparable according to some sociodemographic and clinical characteristics. After 4 weeks of intervention it was observed a 28.4% (39/132) (CI 95%: 20.9-37.0) reduction of leg cramps in all participants and no difference between the two groups was found; reduction of 27.2% (18/66) (CI 95%: 17.0-39.6) in Mg++ group and 32.8% (21/66) (CI 95%: 21.6-45.7) in the placebo group. The OR of leg cramps was 1.3 (CI 95%: 0.6-2.9), p = 0.527, taking the placebo group as reference. Among pregnant women who remained with leg cramps the mean of leg cramps episodes per week showed no significance difference between the Mg++ and placebo groups; t-student test: p = 0.408. Four pregnant women showed gastrointestinal side effects; 2 in each group had nauseas and diarrhoea. CONCLUSION Oral magnesium supplementation during pregnancy did not reduce the ocurrence and frequency of episodes of leg cramps.
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Affiliation(s)
- Carla Adriane Leal de Araújo
- Department of Pediatrics, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife, Pernambuco, Brazil
| | | | | | | | | | - João Guilherme B. Alves
- Department of Pediatrics, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife, Pernambuco, Brazil
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Fernandez M, Moore C, Peng W, de Luca K, Pohlman KA, Swain M, Adams J. The profile of chiropractors managing patients with low back-related leg pain: analyses of 1907 chiropractors from the ACORN practice-based research network. Chiropr Man Therap 2019; 27:19. [PMID: 31015956 PMCID: PMC6469207 DOI: 10.1186/s12998-019-0239-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 02/18/2019] [Indexed: 12/14/2022] Open
Abstract
Background Approximately 60% of people with low back pain also have associated leg pain symptoms. Guidelines for low back pain recommend non-pharmacological approaches, including spinal manipulation - a therapy provided by chiropractors. However, limited empirical data has examined the characteristics of chiropractors managing patients with low back-related leg pain (LBRLP). Our objective is to describe the prevalence, profile and practice characteristics of Australian chiropractors who often treat LBRLP, compared to those who do not often treat LBRLP. Methods This is a cross-sectional analysis of a nationally representative sample from the Australian Chiropractic Research Network (ACORN). This study investigated the demographic and practice characteristics as well as clinical management of chiropractors who ‘often’ treated patients with LBRLP compared to those who treated LBRLP ‘never/rarely/sometimes’. Multiple logistic regression models identified independent factors associated with chiropractors who ‘often’ treated patients with LBRLP. Results A total of 1907 chiropractors reported treating patients experiencing LBRLP, with 80.9% of them ‘often’ treating LBRLP. Chiropractors who ‘often’ treated LBRLP were more likely to manage patients with multi-site pain including axial low back pain (OR = 21.1), referred/radicular neck pain (OR = 10.8) and referred/radicular thoracic pain (OR = 3.1). While no specific management strategies were identified, chiropractors who ‘often’ treated LBRLP were more likely to discuss medication (OR = 1.8), manage migraine (OR = 1.7) and degenerative spine conditions (OR = 1.5), and treat women during pregnancy (OR = 1.6) and people with work-related injuries (OR = 1.5), compared to those not treating LBRLP frequently. Conclusions Australian chiropractors frequently manage LBRLP, although the nature of specific management approaches for this condition remains unclear. Further research on the management of LBRLP can better inform policy makers and educators interested in upskilling chiropractors to deliver safe and effective treatment of LBRLP.
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Affiliation(s)
- Matthew Fernandez
- 1Department of Chiropractic, Faculty of Science and Engineering, Macquarie University, Level 3, Room 369, 17 Wally's Walk, Sydney, NSW Australia.,Chiropractic Academy for Research Leadership (CARL), Sydney, Australia
| | - Craig Moore
- Chiropractic Academy for Research Leadership (CARL), Sydney, Australia.,3Faculty of Health, University of Technology Sydney, Sydney, NSW Australia
| | - Wenbo Peng
- 3Faculty of Health, University of Technology Sydney, Sydney, NSW Australia
| | - Katie de Luca
- 1Department of Chiropractic, Faculty of Science and Engineering, Macquarie University, Level 3, Room 369, 17 Wally's Walk, Sydney, NSW Australia.,Chiropractic Academy for Research Leadership (CARL), Sydney, Australia
| | - Katherine A Pohlman
- Chiropractic Academy for Research Leadership (CARL), Sydney, Australia.,4Research Institute, Parker University, Dallas, Texas USA
| | - Michael Swain
- 1Department of Chiropractic, Faculty of Science and Engineering, Macquarie University, Level 3, Room 369, 17 Wally's Walk, Sydney, NSW Australia.,Chiropractic Academy for Research Leadership (CARL), Sydney, Australia
| | - Jon Adams
- 3Faculty of Health, University of Technology Sydney, Sydney, NSW Australia
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He BS, Li Y, Gui T. Preliminary Clinical Evaluation of Acupuncture Therapy in Patients With Postpartum Sciatica. J Midwifery Womens Health 2018; 63:214-220. [DOI: 10.1111/jmwh.12681] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/13/2017] [Accepted: 07/19/2017] [Indexed: 12/11/2022]
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Fujii K, Orisaka M, Yamamoto M, Nishijima K, Yoshida Y. Primary intramedullary spinal cord tumour in pregnancy: a case report. Spinal Cord Ser Cases 2018; 4:25. [PMID: 29581892 DOI: 10.1038/s41394-018-0059-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 02/19/2018] [Accepted: 02/19/2018] [Indexed: 11/09/2022] Open
Abstract
Introduction Primary spinal cord tumours can lead to severe neurological complications and even death. Pregnant women often complain of discomfort of the lower limbs, which is usually caused by sciatica. Here we present the case of a pregnant woman, who was initially considered to have sciatica, but was finally diagnosed with a primary intramedullary spinal cord tumour. Case presentation A 28-year-old pregnant woman presented to our hospital with inexplicable numbness in her lower limbs. She was initially considered to have sciatica, but acute deterioration of neurological symptoms and plain magnetic resonance imaging (MRI) findings suggested malignancy. The patient was finally diagnosed with a primary intramedullary spinal cord tumour at the C3-Th5 region. An emergency caesarean section was performed, after which the spinal cord lesion was evaluated using contrast-enhanced MRI, positron emission tomography with 2-deoxy-2-[fluorine-18] fluoro-d-glucose integrated with computed tomography, and spinal angiography, and further treatment was initiated. However, while the patient's spinal cord tumour surgery was performed in early postpartum, her paraplegia and bladder and rectal disturbances remained unchanged even 1 year after surgery. Discussion Because of the low incidence of spinal cord tumours during pregnancy, no definite reports have been published on the treatment of pregnant patients with spinal cord tumours. Although safe imaging tests during pregnancy are limited, intervention in such patients should be performed as early as possible to avoid irreversible neurological deterioration.
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Affiliation(s)
- Kyoko Fujii
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-Gun Fukui, 910-1193 Japan
| | - Makoto Orisaka
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-Gun Fukui, 910-1193 Japan
| | - Makoto Yamamoto
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-Gun Fukui, 910-1193 Japan
| | - Koji Nishijima
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-Gun Fukui, 910-1193 Japan
| | - Yoshio Yoshida
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-Gun Fukui, 910-1193 Japan
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