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Cabral FV, Riahi M, Persheyev S, Lian C, Cortez M, Samuel IDW, Ribeiro MS. Photodynamic therapy offers a novel approach to managing miltefosine-resistant cutaneous leishmaniasis. Biomed Pharmacother 2024; 177:116881. [PMID: 38917757 DOI: 10.1016/j.biopha.2024.116881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 06/27/2024] Open
Abstract
Cutaneous leishmaniasis (CL) is a neglected disease caused by Leishmania parasites. The oral drug miltefosine is effective, but there is a growing problem of drug resistance, which has led to increasing treatment failure rates and relapse of infections. Photodynamic therapy (PDT) combines a light source and a photoactive drug to promote cell death by oxidative stress. Although PDT is effective against several pathogens, its use against drug-resistant Leishmania parasites remains unexplored. Herein, we investigated the potential of organic light-emitting diodes (OLEDs) as wearable light sources, which would enable at-home use or ambulatory treatment of CL. We also assessed its impact on combating miltefosine resistance in Leishmania amazonensis-induced CL in mice. The in vitro activity of OLEDs combined with 1,9-dimethyl-methylene blue (DMMB) (OLED-PDT) was evaluated against wild-type and miltefosine-resistant L. amazonensis strains in promastigote (EC50 = 0.034 μM for both strains) and amastigote forms (EC50 = 0.052 μM and 0.077 μM, respectively). Cytotoxicity in macrophages and fibroblasts was also evaluated. In vivo, we investigated the potential of OLED-PDT in combination with miltefosine using different protocols. Our results demonstrate that OLED-PDT is effective in killing both strains of L. amazonensis by increasing reactive oxygen species and stimulating nitric oxide production. Moreover, OLED-PDT showed great antileishmanial activity in vivo, allowing the reduction of miltefosine dose by half in infected mice using a light dose of 7.8 J/cm2 and 15 μM DMMB concentration. In conclusion, OLED-PDT emerges as a new avenue for at-home care and allows a combination therapy to overcome drug resistance in cutaneous leishmaniasis.
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Affiliation(s)
- Fernanda V Cabral
- Center for Lasers and Applications, Nuclear and Energy Research Institute (IPEN-CNEN), São Paulo, Brazil
| | - Mina Riahi
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
| | - Saydulla Persheyev
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
| | - Cheng Lian
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
| | - Mauro Cortez
- Institute of Biomedical Sciences, University of São Paulo (ICB/USP), São Paulo, SP, Brazil
| | - Ifor D W Samuel
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK.
| | - Martha S Ribeiro
- Center for Lasers and Applications, Nuclear and Energy Research Institute (IPEN-CNEN), São Paulo, Brazil.
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Mirmoosavi M, Aminitabar A, Mirfathollahi A, Shalchyan V. Exploring altered oscillatory activity in the anterior cingulate cortex after nerve injury: Insights into mechanisms of neuropathic allodynia. Neurobiol Dis 2024; 190:106381. [PMID: 38114049 DOI: 10.1016/j.nbd.2023.106381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023] Open
Abstract
While neural oscillations play a critical role in sensory perception, it remains unclear how these rhythms function under conditions of neuropathic allodynia. Recent studies demonstrated that the anterior cingulate cortex (ACC) is associated with the affective-aversive component of pain, and plasticity changes in this region are closely linked to abnormal allodynic sensations. Here, to study the mechanisms of allodynia, we recorded local field potentials (LFPs) in the bilateral ACC of awake-behaving rats and compared the spectral power and center frequency of brain oscillations between healthy and CCI (chronic constriction injury) induced neuropathic pain conditions. Our results indicated that activation of the ACC occurs bilaterally in the presence of neuropathic pain, similar to the healthy condition. Furthermore, CCI affects both spontaneous and stimulus-induced activity of ACC neurons. Specifically, we observed an increase in spontaneous beta activity after nerve injury compared to the healthy condition. By stimulating operated or unoperated paws, we found more intense event-related desynchronization (ERD) responses in the theta, alpha, and beta frequency bands and faster alpha center frequency after CCI compared to before CCI. Although the behavioral manifestation of allodynia was more pronounced in the operated paw than the unoperated paw following CCI, there was no significant difference in the center frequency and ERD responses observed in the ACC between stimulation of the operated and unoperated limbs. Our findings offer evidence supporting the notion that aberrancies in ACC oscillations may contribute to the maintenance and development of neuropathic allodynia.
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Affiliation(s)
- Mahnoosh Mirmoosavi
- Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran
| | - Amir Aminitabar
- Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran
| | - Alavie Mirfathollahi
- Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran; Institute for Cognitive Science Studies (ICSS), Tehran 16583-44575, Iran
| | - Vahid Shalchyan
- Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran.
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Aminitabar A, Mirmoosavi M, Ghodrati MT, Shalchyan V. Interhemispheric neural characteristics of noxious mechano-nociceptive stimulation in the anterior cingulate cortex. Front Neural Circuits 2023; 17:1144979. [PMID: 37215504 PMCID: PMC10196115 DOI: 10.3389/fncir.2023.1144979] [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: 01/15/2023] [Accepted: 04/21/2023] [Indexed: 05/24/2023] Open
Abstract
Background Pain is an unpleasant sensory and emotional experience. One of the most critical regions of the brain for pain processing is the anterior cingulate cortex (ACC). Several studies have examined the role of this region in thermal nociceptive pain. However, studies on mechanical nociceptive pain have been very limited to date. Although several studies have investigated pain, the interactions between the two hemispheres are still not clear. This study aimed to investigate nociceptive mechanical pain in the ACC bilaterally. Methods Local field potential (LFP) signals were recorded from seven male Wistar rats' ACC regions of both hemispheres. Mechanical stimulations with two intensities, high-intensity noxious (HN) and non-noxious (NN) were applied to the left hind paw. At the same time, the LFP signals were recorded bilaterally from awake and freely moving rats. The recorded signals were analyzed from different perspectives, including spectral analysis, intensity classification, evoked potential (EP) analysis, and synchrony and similarity of two hemispheres. Results By using spectro-temporal features and support vector machine (SVM) classifier, HN vs. no-stimulation (NS), NN vs. NS, and HN vs. NN were classified with accuracies of 89.6, 71.1, and 84.7%, respectively. Analyses of the signals from the two hemispheres showed that the EPs in the two hemispheres were very similar and occurred simultaneously; however, the correlation and phase locking value (PLV) between the two hemispheres changed significantly after HN stimulation. These variations persisted for up to 4 s after the stimulation. In contrast, variations in the PLV and correlation for NN stimulation were not significant. Conclusions This study showed that the ACC area was able to distinguish the intensity of mechanical stimulation based on the power activities of neural responses. In addition, our results suggest that the ACC region is activated bilaterally due to nociceptive mechanical pain. Additionally, stimulations above the pain threshold (HN) significantly affect the synchronicity and correlation between the two hemispheres compared to non-noxious stimuli.
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Cifuentes-Mendiola SE, Solís-Suarez DL, Martínez-Davalos A, García-Hernández AL. Macrovascular and microvascular type 2 diabetes complications are interrelated in a mouse model. J Diabetes Complications 2023; 37:108455. [PMID: 36963291 DOI: 10.1016/j.jdiacomp.2023.108455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/07/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023]
Abstract
AIM Evaluate the development of multiple complications, their interactions, and common mechanisms in the same individual with T2D. MATERIAL AND METHODS 4-week-old male C57BL/6J mice were divided into: control (n = 6) and T2D (n = 6). T2D was induced through a high-carbohydrate-diet and low doses of streptozotocin. T2D was validated by metabolic parameters. Diabetic neuropathy was evaluated by mechanical and thermal sensitivity tests. We performed a histopathological analysis of the heart, kidney, liver, and parotid salivary glands and changes in bone microarchitecture by μCT. We calculated the relative risk (RR), odd ratios (OR) and Pearson correlation coefficients between the different complications and metabolic features. RESULTS T2D mice have cardiomyopathy, neuropathy, nephropathy, liver steatosis and fibrosis, structural damage in parotid salivary glands, and bone porosity. RR analysis shows that all complications are interrelated by hyperglycaemia, insulin resistance, obesity, and systemic inflammation. CONCLUSIONS T2D mice develop multiple complications simultaneously, which are related to each other, and this is associated with metabolic alterations. Our findings open up new approaches for the study and new therapeutic approaches of the pathophysiology of T2D and its complications.
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Affiliation(s)
- S E Cifuentes-Mendiola
- Laboratory of Dental Research, Section of Osteoimmunology and Oral Immunology, FES Iztacala, National Autonomous University of Mexico, A. Jiménez Gallardo SN, San Sebastián Xhala, Cuautitlán Izcalli, Estado de México CP 54714, Mexico
| | - D L Solís-Suarez
- Laboratory of Dental Research, Section of Osteoimmunology and Oral Immunology, FES Iztacala, National Autonomous University of Mexico, A. Jiménez Gallardo SN, San Sebastián Xhala, Cuautitlán Izcalli, Estado de México CP 54714, Mexico
| | - A Martínez-Davalos
- Physics institute, National Autonomous University of Mexico, Circuito de la Investigación Científica, Ciudad Universitaria, 04510 México City, Mexico
| | - A L García-Hernández
- Laboratory of Dental Research, Section of Osteoimmunology and Oral Immunology, FES Iztacala, National Autonomous University of Mexico, A. Jiménez Gallardo SN, San Sebastián Xhala, Cuautitlán Izcalli, Estado de México CP 54714, Mexico.
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Hammad ASA, Sayed-Ahmed MM, Abdel Hafez SMN, Ibrahim ARN, Khalifa MMA, El-Daly M. Trimetazidine alleviates paclitaxel-induced peripheral neuropathy through modulation of TLR4/p38/NFκB and klotho protein expression. Chem Biol Interact 2023; 376:110446. [PMID: 36898573 DOI: 10.1016/j.cbi.2023.110446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Chemotherapy-induced peripheral neuropathy is a common adverse effect associated with a number of chemotherapeutic agents including paclitaxel (PTX) which is commonly used in a wide range of solid tumors. Development of PTX-induced peripheral neuropathy (PIPN) during cancer treatment requires dose reduction which limits its clinical benefits. This study is conducted to investigate the role of toll like receptor-4 (TLR4) and p38 signaling and Klotho protein expression in PIPN and the role of Trimetazidine (TMZ) in this pathway. Sixty-four male Swiss albino mice were divided into 4 groups (n = 16); Group (1) injected intraperitoneally (IP) with ethanol/tween 80/saline for 8 successive days. Group (2) received TMZ (5 mg/kg, IP, day) for 8 successive days. Group (3) treated with 4 doses of PTX (4.5 mg/kg, IP) every other day over a period of 8 days. Group (4) received a combination of TMZ as group 2 and PTX as group 3. The Effect of TMZ on the antitumor activity of PTX was studied in another set of mice-bearing Solid Ehrlich Carcinoma (SEC) that was similarly divided as the above-mentioned set. TMZ mitigated tactile allodynia, thermal hypoalgesia, numbness and fine motor dyscoordination associated with PTX in Swiss mice. The results of the current study show that the neuroprotective effect of TMZ can be attributed to inhibition of TLR4/p38 signaling which also includes a reduction in matrix metalloproteinase-9 (MMP9) protein levels as well as the proinflammatory interleukin-1β (IL-1β) and preserving the levels of the anti-inflammatory IL-10. Moreover, the current study is the first to demonstrate that PTX reduces the neuronal levels of klotho protein and showed its modulation via cotreatment with TMZ. In addition, this study showed that TMZ neither alter the growth of SEC nor the antitumor activity of PTX. In conclusion, we suggest that (1) Inhibition of Klotho protein and upregulation of TLR4/p38 signals in nerve tissues may contribute to PIPN. (2) TMZ attenuates PIPN by modulating TLR4/p38 and Klotho protein expression in without interfering with its antitumor activity.
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Affiliation(s)
- Asmaa S A Hammad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt.
| | - Mohamed M Sayed-Ahmed
- Pharmacology and Experimental Oncology Unit, National Cancer Institute, Cairo University, Cairo, 11796, Egypt
| | - Sara M N Abdel Hafez
- Department of Histology and Cell Biology, Faculty of Medicine, Minia University, Minia, 61511, Egypt
| | - Ahmed R N Ibrahim
- Clinical Pharmacy Department, College of Pharmacy, King Khalid University, Abha, 61441, Saudi Arabia; Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
| | - Mohamed M A Khalifa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
| | - Mahmoud El-Daly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
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Pérez-Martinez IO, Cifuentes-Mendiola SE, Solis-Suarez DL, García-Hernández AL. Moderate intensity aerobic training reduces the signs of peripheral sensitization in a mouse model of type 2 diabetes mellitus. Exp Brain Res 2022; 240:2747-2756. [PMID: 36063191 DOI: 10.1007/s00221-022-06453-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a global health problem for many reasons including the comorbidities, such as diabetic neuropathy (DPN), which is the most common. It has been suggested that aerobic training can improve metabolic health in individuals with T2DM. Still, the effect of aerobic training on DPN signs and its relationship with serum levels of tumor necrosis tumor alpha (TNF-α), an essential molecule in T2DM development, is unknown. We evaluated the effect of two intensities of aerobic training in adult male C57BL/6 mice divided into six groups: sedentary control (CTRL), control with low-intensity training (CTRL-LI), control with moderate-intensity training (CTRL-MI), T2DM sedentary (T2DM), T2DM with low-intensity training (T2DM-LI), and T2DM with moderate-intensity training (T2DM-MI). We induced the T2DM model by combining a hypercaloric diet and low doses of streptozotocin. We measured serum TNF-α levels and correlated them with peripheral sensitization and the cardinal signs of T2DM in mice. Moderate intensity aerobic training decreased the symptoms of DPN and improved metabolic health in T2DM. Interestingly, decreased TNF-α serum levels correlated with reduced peripheral thermal sensitivity and mechanical sensitivity by aerobic training. Moderate intensity aerobic training counteracts the development and symptoms of DPN and improve metabolic health in T2DM. Decreased TNF-α correlates with reduced peripheral thermal sensitivity and mechanical sensitivity by aerobic training.
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Affiliation(s)
- Isaac O Pérez-Martinez
- Sección de neurobiología de las Sensaciones y Movimientos orales, Laboratorio de Investigación Odontologica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Saul E Cifuentes-Mendiola
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Diana L Solis-Suarez
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Ana L García-Hernández
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México.
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Andrade-Gonzalez RD, Perrusquia-Hernández E, Zepeda-Reyes KI, Campos Me H, Perez-Martinez IO. Sensory-motor response elicited by first time intraoral administered ethanol after trigeminal neuropathic injury. Alcohol 2022; 103:9-17. [PMID: 35714863 DOI: 10.1016/j.alcohol.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/29/2022] [Accepted: 06/07/2022] [Indexed: 11/25/2022]
Abstract
Recent findings have shown a relationship between alcohol use disorders (AUD) and chronic pain. Preclinical models have demonstrated that chronic pain, including trigeminal nerve injury, increases ethanol consumption throughout extended administration periods. Nevertheless, it remains unclear whether chronic pain induces a greater susceptibility to developing AUD by altering motor control consumption regardless of the symptomatology of neuropathic pain and if sex influences this susceptibility. We used a former prolonged pain experience model induced by a constriction of the mental nerve (mNC) to answer this question. We analyzed ethanol consumption in a short access protocol to reduce the post-ingestional effects and compared licking microstructure between groups. The constriction of the mental nerve induced evoked and spontaneous pain and reduction in the hedonic value of sucrose. The differences in alcohol consumption were not reflective of the former prolonged pain experience. Female mice showed a more efficient dynamic of consumption of alcohol reflected in a long burst of licking and a less variable licking rate within a cluster.
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Affiliation(s)
- R D Andrade-Gonzalez
- Sección de neurobiología de las sensaciones orales. Laboratorio de Investigación odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México.San Sebastián Xhala, San Sebastián Xhala, 54714 Cuautitlán Izcalli, México; Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, Ciudad de México, 11340, México
| | - E Perrusquia-Hernández
- Sección de neurobiología de las sensaciones orales. Laboratorio de Investigación odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México.San Sebastián Xhala, San Sebastián Xhala, 54714 Cuautitlán Izcalli, México; Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, Ciudad de México, 11340, México
| | - K I Zepeda-Reyes
- Sección de neurobiología de las sensaciones orales. Laboratorio de Investigación odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México.San Sebastián Xhala, San Sebastián Xhala, 54714 Cuautitlán Izcalli, México; Bioquímica Diagnóstica, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México Av. 1ro. De Mayo S/N, Col. Santa María De Las Torres Cuautitlán Izcalli, 54740, Mexico
| | - Hernandez Campos Me
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, Ciudad de México, 11340, México
| | - I O Perez-Martinez
- Sección de neurobiología de las sensaciones orales. Laboratorio de Investigación odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México.San Sebastián Xhala, San Sebastián Xhala, 54714 Cuautitlán Izcalli, México.
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Comparative Multimodal Palliative efficacy of gabapentin and tramadol By Using Two Pain Scoring Systems in Cats Undergoing Ovariohysterectomy. ACTA VET-BEOGRAD 2021. [DOI: 10.2478/acve-2021-0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
The analgesic efficacy of the gabapentin-tramadol combination was compared with meloxicam-tramadol and tramadol perioperative analgesic regimens in cats brought to the clinic for ovariohysterectomy. Thirty adult cats belonging to comparable demographics (age, body weight), were enrolled into a randomized, blinded study after due consent from their owners into four treatment groups. A Gabapentin-Tramadol group (GT-group, n = 10), Meloxicam-Tramadol group (MT-group, n = 10), and a Tramadol group (T-group, n = 10) were formed. Gabapentin capsules at 50 mg were administered orally 2 hours before surgery while the rest received a placebo dose. Tramadol (2 mg/kg, IM) and meloxicam at (0.2 mg/kg, SC) were injected immediately prior to anesthetic premedication. Anesthetic protocol involved premedication with ketamine and xylazine, while anesthesia was induced using propofol. Inhalant isoflurane anesthesia was used to maintain a surgical plane. GT group scored lower on IVAS as well as CPS than MT group, and T group for up to 8 hours after surgery. The mechanical nociceptive threshold remained higher (98±0) for up to 12 hours postoperatively a nd serum cortisol concentrations remained significantly lower during the 24hr period. The addition of gabapentin to the tramadol regimen significantly improved analgesia and mechanical nociceptive threshold than when used on its own.
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Ng CY, Chai JY, Foo JB, Mohamad Yahaya NH, Yang Y, Ng MH, Law JX. Potential of Exosomes as Cell-Free Therapy in Articular Cartilage Regeneration: A Review. Int J Nanomedicine 2021; 16:6749-6781. [PMID: 34621125 PMCID: PMC8491788 DOI: 10.2147/ijn.s327059] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/22/2021] [Indexed: 12/20/2022] Open
Abstract
Treatment of cartilage defects such as osteoarthritis (OA) and osteochondral defect (OCD) remains a huge clinical challenge in orthopedics. OA is one of the most common chronic health conditions and is mainly characterized by the degeneration of articular cartilage, shown in the limited capacity for intrinsic repair. OCD refers to the focal defects affecting cartilage and the underlying bone. The current OA and OCD management modalities focus on symptom control and on improving joint functionality and the patient’s quality of life. Cell-based therapy has been evaluated for managing OA and OCD, and its chondroprotective efficacy is recognized mainly through paracrine action. Hence, there is growing interest in exploiting extracellular vesicles to induce cartilage regeneration. In this review, we explore the in vivo evidence of exosomes on cartilage regeneration. A total of 29 in vivo studies from the PubMed and Scopus databases were identified and analyzed. The studies reported promising results in terms of in vivo exosome delivery and uptake; improved cartilage morphological, histological, and biochemical outcomes; enhanced subchondral bone regeneration; and improved pain behavior following exosome treatment. In addition, exosome therapy is safe, as the included studies documented no significant complications. Modifying exosomal cargos further increased the cartilage and subchondral bone regeneration capacity of exosomes. We conclude that exosome administration is a potent cell-free therapy for alleviating OA and OCD. However, additional studies are needed to confirm the therapeutic potential of exosomes and to identify the standard protocol for exosome-based therapy in OA and OCD management.
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Affiliation(s)
- Chiew Yong Ng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
| | - Jia Ying Chai
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
| | - Jhi Biau Foo
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, 47500, Selangor, Malaysia.,Centre for Drug Discovery and Molecular Pharmacology (CDDMP), Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Selangor, 47500, Malaysia
| | - Nor Hamdan Mohamad Yahaya
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Ying Yang
- School of Pharmacy and Bioengineering, Keele University, Stoke-on-Trent, ST4 7QB, UK
| | - Min Hwei Ng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
| | - Jia Xian Law
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
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Vidament M, Lansade L, Danvy S, Priest BDS, Sabbagh M, Ricard A. Personality in young horses and ponies evaluated during breeding shows: Phenotypic link with jumping competition results. J Vet Behav 2021. [DOI: 10.1016/j.jveb.2020.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Beqja D, Haidar S, Nikolaev M, Shen Y, Denholm B. Transgenic Tarantula Toxin: A novel tool to study mechanosensitive ion channels in Drosophila. JOURNAL OF INSECT PHYSIOLOGY 2020; 127:104116. [PMID: 32991864 PMCID: PMC7725602 DOI: 10.1016/j.jinsphys.2020.104116] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
The tarantula venom toxin GsMTx4 is the only known specific inhibitor of cation-selective mechanosensitive ion channels (MSCs). Its specificity, potency, and ease of use on isolated tissues and cells have made it a powerful pharmacological tool to identify and probe the physiological function of MSCs. In some contexts, however, it would be desirable to deliver the toxin in a controlled way in vivo. Here we describe a novel tool to allow spatial and temporal control of GsMTx4 delivery in vivo in Drosophila. To test the tool, we targeted MSCs required for mechanical nociception in a specific subset of sensory neurons in intact larvae. Expression of GsMTx4 in these neurons results in robust inhibition of mechanical nociception, demonstrating the toxin is active when expressed in vivo. The tool will be particularly useful to manipulate MSC activity in a spatially and temporally-controlled manner to study their role in development, physiology and behaviour in intact, free moving animals.
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Affiliation(s)
- Denis Beqja
- Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Sunna Haidar
- Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Mihail Nikolaev
- Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Yilan Shen
- Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Barry Denholm
- Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK.
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Telailia N, Fisson S, Frih H. Compression of The Sciatic Nerve May not Contribute to Ipsilateral Hyperalgesia Development in Ovariectomized Female Rats! CELL JOURNAL 2020; 22:548-555. [PMID: 32347049 PMCID: PMC7211275 DOI: 10.22074/cellj.2021.6907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/06/2019] [Indexed: 11/15/2022]
Abstract
Objective von Frey Filament (vFF) is an aesthesiometer to measure paw withdrawal thresholds. Our aim was to
validate the manually von Frey test technique for assessing neuropathic pain behavioral signs in a sciatic nerve ligation
model.
Materials and Methods In this experimental study, peripheral neuropathic pain associated with sciatic nerve chronic
ligation (SN-CL) was induced. Filaments used against posterior pad mid-plantar region using a simplified up-down
method (SUDO). In addition to baseline withdrawal thresholds, the behavioral test was repeated after surgery thrice
more with an interval of ten days. vFF (2 to 26 g) were used in ascending order for hyperalgesia assessment.
Results In SN-CL rats, the results validate a loss of pain sensation, resulted in, long-lasting ipsilateral allodynia with
the development of contralateral allodynia later and an extraterritorial development of neuropathic signs. Variability
for the development of ipsilateral and contralateral allodynia over time was noted in sham (SH) control rats. SN-CL
group showed a contralateral hyperalgesia development just at the 16th-day after surgery with an absence of ipsilateral
hyperalgesia development at the different days of paw withdrawal thresholds measurements.
Conclusion Manually vFF test technique was successfully used for assessing neuropathic pain behavioral signs in
sciatic a nerve ligation model with the absence of ipsilateral hyperalgesia development.
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Affiliation(s)
- Nafissa Telailia
- Department of Biology, Faculty of Natural Science, University of Badji Mokhtar, Annaba, Algeria. Electronic Address:
| | - Sylvain Fisson
- National Institute of Health and Medical Research, Joint Research Unit_S951, Evry, France.,Genethon, National Institute of Health and Medical Research, Joint Research Unit_S951, Evry, France.,Joint Research Unit_S951, University of Evry Val d'Essonne, Evry, France
| | - Hacène Frih
- Department of Biology, Faculty of Natural Science, University of Badji Mokhtar, Annaba, Algeria
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Rodrigues M, Cardoso RB, Kuriki HU, Marcolino AM, de Oliveira Guirro EC, Barbosa RI. Photobiomodulation Decreases Hyperalgesia in Complex Regional Pain Syndrome: An Experimental Mouse Model Subjected to Nicotine. Lasers Surg Med 2020; 52:890-896. [PMID: 32201964 DOI: 10.1002/lsm.23240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND OBJECTIVES Complex regional pain syndrome (CRPS) is defined as an extreme and chronic pain condition, and photobiomodulation has relevance as a complementary treatment for CRPS. The objective of this study was to verify the effects of photobiomodulation (PBMT) therapy protocols at two wavelengths 660 and 830 nm, associated or not to nicotine in complex regional pain syndrome type I (CRPS-I). STUDY DESIGN/MATERIALS AND METHODS Sixty-four Swiss mice were divided into the following groups: (i) Naive, (ii) Sham, (iii) Control, (iv) 660 nm, (v) 830 nm, (vii) Nicotine, (vii) Nicotine/660 nm, and (viii) Nicotine/830 nm. CRPS-I was induced in an experimental ischemia/reperfusion model by affixing an elastic ring, proximal to the ankle joint of the right hind mouse paw, for 3 hours. Nicotine, in the respective groups was administered for 28 days prior to the induction of CRPS-I. PBMT was applied immediately after the procedure and for 20 consecutive days. The animals were evaluated for mechanical hyperalgesia, thermal hyperalgesia, paw edema at baseline and for 7, 14, and 21 days. Statistical analyses comprised a mixed-effects model, using the Tukey post hoc test (P < 0.05). RESULTS The PBMT wavelengths in 660 and 830 nm groups had beneficial effects (P < 0.05) in reducing mechanical and thermal hyperalgesia, but the effects at 660 nm were significantly better than 830 nm. At reducing edema, both wavelengths had significant effects statistically, absolutely no difference between them. CONCLUSIONS The use of PBMT (660 and 830 nm) was effective in reducing mechanical hyperalgesia and thermal hyperalgesia; however, PBMT at 660 nm generated significant results. In reducing edema, both wavelengths had similar effects, which were significant statistically. The deleterious effects of nicotine were evident statistically and were softened when treated with PBMT (P < 0.05). Lasers Surg. Med. © 2020 Wiley Periodicals, Inc.
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Affiliation(s)
- Mariana Rodrigues
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, CEP 88905-120, Brazil
| | - Ramon B Cardoso
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, CEP 88905-120, Brazil
| | - Heloyse U Kuriki
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, CEP 88905-120, Brazil
| | - Alexandre M Marcolino
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, CEP 88905-120, Brazil
| | - Elaine Caldeira de Oliveira Guirro
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School of the University of São Paulo(USP), Av. dos Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Rafael I Barbosa
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, CEP 88905-120, Brazil
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Ashby DM, LeDue J, Murphy TH, McGirr A. Peripheral Nerve Ligation Elicits Widespread Alterations in Cortical Sensory Evoked and Spontaneous Activity. Sci Rep 2019; 9:15341. [PMID: 31653941 PMCID: PMC6814845 DOI: 10.1038/s41598-019-51811-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/08/2019] [Indexed: 12/31/2022] Open
Abstract
Peripheral neuropathies result in adaptation in primary sensory and other regions of cortex, and provide a framework for understanding the localized and widespread adaptations that arise from altered sensation. Mesoscale cortical imaging achieves high temporal resolution of activity using optical sensors of neuronal activity to simultaneously image across a wide expanse of cortex and capture this adaptation using sensory-evoked and spontaneous cortical activity. Saphenous nerve ligation in mouse is an animal model of peripheral neuropathy that produces hyperalgesia circumscribed to the hindlimb. We performed saphenous nerve ligation or sham, followed by mesoscale cortical imaging using voltage sensitive dye (VSD) after ten days. We utilized subcutaneous electrical stimulation at multiple stimulus intensities to characterize sensory responses after ligation or sham, and acquired spontaneous activity to characterize functional connectivity and large scale cortical network reorganization. Relative to sham animals, the primary sensory-evoked response to hindlimb stimulation in ligated animals was unaffected in magnitude at all stimulus intensities. However, we observed a diminished propagating wave of cortical activity at lower stimulus intensities in ligated animals after hindlimb, but not forelimb, sensory stimulation. We simultaneously observed a widespread decrease in cortical functional connectivity, where midline association regions appeared most affected. These results are consistent with localized and broad alterations in intracortical connections in response to a peripheral insult, with implications for novel circuit level understanding and intervention for peripheral neuropathies and other conditions affecting sensation.
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Affiliation(s)
- Donovan M Ashby
- Hotchkiss Brain Institute, University of Calgary, Calgary, Canada
| | - Jeffrey LeDue
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
| | - Timothy H Murphy
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
| | - Alexander McGirr
- Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Canada.
- Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, Canada.
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15
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Kaliyaperumal S, Wilson K, Aeffner F, Dean C. Animal Models of Peripheral Pain: Biology Review and Application for Drug Discovery. Toxicol Pathol 2019; 48:202-219. [PMID: 31269874 DOI: 10.1177/0192623319857051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pain is a complex constellation of cognitive, unpleasant sensory, and emotional experiences that primarily serves as a survival mechanism. Pain arises in the peripheral nervous system and pain signals synapse with nerve tracts extending into the central nervous system. Several different schemes are used to classify pain, including the underlying mechanism, tissues primarily affected, and time-course. Numerous animal models of pain, which should be employed with appropriate Institutional Animal Care and Use approvals, have been developed to elucidate pathophysiology mechanisms and aid in identification of novel therapeutic targets. The variety of available models underscores the observations that pain phenotypes are driven by several distinct mechanisms. Pain outcome measurement encompasses both reflexive (responses to heat, cold, mechanical and electrical stimuli) and nonreflexive (spontaneous pain responses to stimuli) behaviors. However, the question of translatability to human pain conditions and potential treatment outcomes remains a topic of continued scrutiny. In this review we discuss the different types of pain and their mechanisms and pathways, available rodent pain models with an emphasis on type of pain stimulations and pain outcome measures and discuss the role of pathologists in assessing and validating pain models.
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Affiliation(s)
| | | | | | - Charles Dean
- Amgen, Inc, Thousand Oaks, CA, USA *Both authors equally contributed to the manuscript
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16
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Pérez-Martínez IO, Acevedo-Roque CR, Montes-Angeles CD, Martínez M, Miranda F. Mental nerve injury induces novelty seeking behaviour leading to increasing ethanol intake in Wistar rats. Arch Oral Biol 2019; 99:66-72. [PMID: 30639775 DOI: 10.1016/j.archoralbio.2019.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Dental treatment and orofacial surgeries may induce chronic neuropathic orofacial pain (CNOP). This kind of pain affects adaptability to environmental changes in both model animals and humans. Part of the adaptation process depends on the ability to distinguish between familiar and novel stimuli. CNOP induces novelty seeking behaviour as a deficit in environmental adaptation. Alternatively, novelty seeking is a sign for susceptibility to the development of substance abuse. Evidence shows that CNOP leads to alcoholism in animal models. The behavioural relationship between CNOP, novelty seeking behaviour and substance abuse is unknown. In this article, we investigate if CNOP produces an increase in novelty seeking and leads to increasing ethanol intake. DESIGN Firstly, we used mental nerve injury as a neuropathic orofacial pain model to evaluate both thermal and mechanical allodynia. We used the novel recognition task to determine novelty seeking behaviour and the drink in darkness protocol to assess ethanol intake. RESULTS Our results show that mental nerve constriction increases novelty seeking behaviour (p = 0.01) and correlates with ethanol binge consumption (r2 = 0.68, p = 0.0008). CONCLUSIONS The present study demonstrates, for the first time, that trigeminal nerve injury, which induces CNOP, is enough to provide novelty seeking behaviour and lead to increasing ethanol intake. The increase of novelty seeking behaviour can serve as a predictor of risk of developing substance abuse. The treatment of CNOP involves a high risk of producing addiction. The level of novelty seeking evaluation in patients with neuropathic pain before treatment is critical.
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Affiliation(s)
- Isaac O Pérez-Martínez
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico.
| | - Casandra R Acevedo-Roque
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Claudia D Montes-Angeles
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Mariana Martínez
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Florencio Miranda
- Laboratorio de Neurofarmacología Conductual, Unidad Interdisciplinaria en ciencias de la Salud y la Eduación. Facultad de Estudios Superiores Iztacala, UNAM, Av De Los Barrios 1, Los Reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
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Sousa FSS, Birmann PT, Balaguez R, Alves D, Brüning CA, Savegnago L. α-(phenylselanyl) acetophenone abolishes acute restraint stress induced-comorbid pain, depression and anxiety-related behaviors in mice. Neurochem Int 2018; 120:112-120. [DOI: 10.1016/j.neuint.2018.08.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/08/2018] [Accepted: 08/13/2018] [Indexed: 12/23/2022]
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de Sousa MVP, Kawakubo M, Ferraresi C, Kaippert B, Yoshimura EM, Hamblin MR. Pain management using photobiomodulation: Mechanisms, location, and repeatability quantified by pain threshold and neural biomarkers in mice. JOURNAL OF BIOPHOTONICS 2018; 11:e201700370. [PMID: 29484823 PMCID: PMC6037550 DOI: 10.1002/jbio.201700370] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/23/2018] [Indexed: 05/02/2023]
Abstract
Photobiomodulation (PBM) is a simple, efficient and cost-effective treatment for both acute and chronic pain. We previously showed that PBM applied to the mouse head inhibited nociception in the foot. Nevertheless, the optimum parameters, location for irradiation, duration of the effect and the mechanisms of action remain unclear. In the present study, the pain threshold in the right hind paw of mice was studied, after PBM (810 nm CW laser, spot size 1 or 6 cm2 , 1.2-36 J/cm2 ) applied to various anatomical locations. The pain threshold, measured with von Frey filaments, was increased more than 3-fold by PBM to the lower back (dorsal root ganglion, DRG), as well as to other neural structures along the pathway such as the head, neck and ipsilateral (right) paw. On the other hand, application of PBM to the contralateral (left) paw, abdomen and tail had no effect. The optimal effect occurred 2 to 3 hours post-PBM and disappeared by 24 hours. Seven daily irradiations showed no development of tolerance. Type 1 metabotropic glutamate receptors decreased, and prostatic acid phosphatase and tubulin-positive varicosities were increased as shown by immunofluorescence of DRG samples. These findings elucidate the mechanisms of PBM for pain and provide insights for clinical practice.
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Affiliation(s)
- Marcelo Victor Pires de Sousa
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA02114, USA
- Bright Photomedicine Ltd, Lineu Prestes St 2242, São Paulo, Brazil
- Laboratory of Radiation Dosimetry and Medical Physics, Institute of Physics, University of São Paulo, São Paulo, Brazil
- Correspondence to ; Bright Photomedicine Ltd, Lineu Prestes St 2242, CIETEC, São Paulo, Brazil. Zip Code: 05508-000. Phone: +55 11 957008558. OR ; Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA. Phone: +1 617 726 6182
| | - Masayoshi Kawakubo
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA02114, USA
- Harvard Medical School, Department of Dermatology, Boston, MA 02115, USA
| | - Cleber Ferraresi
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA02114, USA
- Post-Graduation Program in Biotechnology, Federal University of São Carlos, São Paulo, Brazil
- Post-Graduation in Physical Therapy in Functional Health, Physical Therapy Department, Universidade do Sagrado Coração, Bauru, São Paulo, Brazil
- Post-Graduation Program in Biomedical Engineering, Universidade Brasil, São Paulo, Brazil
| | - Beatriz Kaippert
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA02114, USA
- Pharmacy School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Clinical Research Platform, Vice-Presidency of Research and Biological Collections, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Elisabeth Mateus Yoshimura
- Laboratory of Radiation Dosimetry and Medical Physics, Institute of Physics, University of São Paulo, São Paulo, Brazil
| | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA02114, USA
- Harvard Medical School, Department of Dermatology, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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Casal D, Mota-Silva E, Iria I, Alves S, Farinho A, Pen C, Lourenço-Silva N, Mascarenhas-Lemos L, Silva-Ferreira J, Ferraz-Oliveira M, Vassilenko V, Videira PA, Goyri-O’Neill J, Pais D. Reconstruction of a 10-mm-long median nerve gap in an ischemic environment using autologous conduits with different patterns of blood supply: A comparative study in the rat. PLoS One 2018; 13:e0195692. [PMID: 29659600 PMCID: PMC5902043 DOI: 10.1371/journal.pone.0195692] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 03/27/2018] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate in the Wistar rat the efficacy of various autologous nerve conduits with various forms of blood supply in reconstructing a 10-mm-long gap in the median nerve (MN) under conditions of local ischemia. A 10-mm-long median nerve defect was created in the right arm. A loose silicone tube was placed around the nerve gap zone, in order to simulate a local ischemic environment. Rats were divided in the following experimental groups (each with 20 rats): the nerve Graft (NG) group, in which the excised MN segment was reattached; the conventional nerve flap (CNF) and the arterialized neurovenous flap (ANVF) groups in which the gap was bridged with homonymous median nerve flaps; the prefabricated nerve flap (PNF) group in which the gap was reconstructed with a fabricated flap created by leaving an arteriovenous fistula in contact with the sciatic nerve for 5 weeks; and the two control groups, Sham and Excision groups. In the latter group, the proximal stump of the MN nerve was ligated and no repair was performed. The rats were followed for 100 days. During this time, they did physiotherapy. Functional, electroneuromyographic and histological studies were performed. The CNF and ANVF groups presented better results than the NG group in the following assessments: grasping test, nociception, motor stimulation threshold, muscle weight, and histomorphometric evaluation. Radial deviation of the operated forepaw was more common in rats that presented worse results in the other outcome variables. Overall, CNFs and ANVFs produced a faster and more complete recovery than NGs in the reconstruction of a 10-mm-long median nerve gap in an ischemic environment in the Wistar rat. Although, results obtained with CNFs were in most cases were better than ANVFs, these differences were not statistically significant for most of the outcome variables.
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Affiliation(s)
- Diogo Casal
- Anatomy Department, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
- Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
- UCIBIO, Life Sciences Department, Faculty of Sciences and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Eduarda Mota-Silva
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Inês Iria
- CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Sara Alves
- Pathology Department, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
| | - Ana Farinho
- CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Cláudia Pen
- Pathology Department, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
| | | | - Luís Mascarenhas-Lemos
- Anatomy Department, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
- Pathology Department, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
| | - José Silva-Ferreira
- Pathology Department, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
| | - Mário Ferraz-Oliveira
- Pathology Department, Centro Hospitalar de Lisboa Central–Hospital de São José, Lisbon, Portugal
| | - Valentina Vassilenko
- LIBPhys, Physics Department, Faculdade de Ciências e Tecnologias, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Paula Alexandra Videira
- UCIBIO, Life Sciences Department, Faculty of Sciences and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - João Goyri-O’Neill
- Anatomy Department, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Diogo Pais
- Anatomy Department, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
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Abstract
Photobiomodulation (PBM) also known as low-level level laser therapy is the use of red and near-infrared light to stimulate healing, relieve pain, and reduce inflammation. The primary chromophores have been identified as cytochrome c oxidase in mitochondria, and calcium ion channels (possibly mediated by light absorption by opsins). Secondary effects of photon absorption include increases in ATP, a brief burst of reactive oxygen species, an increase in nitric oxide, and modulation of calcium levels. Tertiary effects include activation of a wide range of transcription factors leading to improved cell survival, increased proliferation and migration, and new protein synthesis. There is a pronounced biphasic dose response whereby low levels of light have stimulating effects, while high levels of light have inhibitory effects. It has been found that PBM can produce ROS in normal cells, but when used in oxidatively stressed cells or in animal models of disease, ROS levels are lowered. PBM is able to up-regulate anti-oxidant defenses and reduce oxidative stress. It was shown that PBM can activate NF-kB in normal quiescent cells, however in activated inflammatory cells, inflammatory markers were decreased. One of the most reproducible effects of PBM is an overall reduction in inflammation, which is particularly important for disorders of the joints, traumatic injuries, lung disorders, and in the brain. PBM has been shown to reduce markers of M1 phenotype in activated macrophages. Many reports have shown reductions in reactive nitrogen species and prostaglandins in various animal models. PBM can reduce inflammation in the brain, abdominal fat, wounds, lungs, spinal cord.
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Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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21
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Trautmann M, Wendel V, Prinz D, Primmel B, Willging G, Nagorsen E, Suckert A, Gehm S, Brandt M, Ballay P, Godde B. Not only age but also tactile perception influences the preference for cosmetic creams applied to the forearm. Int J Cosmet Sci 2016; 39:344-350. [PMID: 27864955 DOI: 10.1111/ics.12382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/31/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE We aimed to examine whether and how age as well as tactile sensitivity and perception had an impact on how women liked richer and lighter creams. Furthermore, the question arose if age and tactile perception had an influence on the ability to distinguish between the creams and how the ability to distinguish between creams influenced the liking of these creams. METHODS A total of 299 female participants were invited to rate how much they liked four different cosmetic creams applied to their forearms. The creams were based on the same base formula but differed with respect to the texture. In order to arouse the impression of more lightness (quasi-light) or more richness (quasi-rich), polyethylene particles of different sizes were added to the base formula. First of all, the participants were tested for their tactile sensitivity and perception. Tactile sensitivity was tested by Von Frey filaments, tactile spatial perception by the tactile Landolt ring test and the ability to discriminate surface structures by a sandpaper test. Furthermore, the participants rated the creams with respect to the acceptance, the subjective skin feeling after application and performed paired-comparison tests. Analyses of variance and regression analyses were applied to the data. RESULTS In general, participants liked quasi-rich creams less than quasi-light creams. However, older women compared to younger women and women with lower tactile performance in comparison with women with higher tactile performance revealed a weaker influence of cream type-specific acceptance ratings. Further results revealed that young participants perceived the quasi-light creams (with particles of ~50 μm diameter) as soft and quasi-rich creams (with particles of ~100 μm and ~165 μm diameter), as coarse. In contrast, this subjective skin feeling after application in participants at age 50 and older did not differ much. CONCLUSION Age and tactile perceptual abilities have additive effects on the acceptance of creams with different textures when applied to the forearm.
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Affiliation(s)
- M Trautmann
- Department of Psychology and Methods, Jacobs University Bremen gGmbH, Campus Ring 1, Bremen, 28759, Germany
| | - V Wendel
- BASF Personal Care and Nutrition GmbH, Henkelstraße 67, Duesseldorf-Holthausen, 40589, Germany
| | - D Prinz
- BASF Personal Care and Nutrition GmbH, Henkelstraße 67, Duesseldorf-Holthausen, 40589, Germany
| | - B Primmel
- Beiersdorf AG, Unnastraße 48, Hamburg, 20245, Germany
| | - G Willging
- SAM Sensory and Marketing International GmbH, Oetztaler Strasse 1, München, 81373, Germany
| | - E Nagorsen
- REWE Group Buying GmbH, Domstraße 20, Köln, 50668, Germany
| | - A Suckert
- BASF Personal Care and Nutrition GmbH, Henkelstraße 67, Duesseldorf-Holthausen, 40589, Germany
| | - S Gehm
- Ashland Industries Deutschland GmbH, Paul-Thomas-Straße 56, Düsseldorf, 40599, Germany
| | - M Brandt
- proDERM Institut für Angewandte Dermatologische Forschung GmbH, Kiebitzweg 2, Schenefeld/Hamburg, 22869, Germany
| | - P Ballay
- isi GmbH, Ascherberg 2, Rosdorf (Göttingen), 37124, Germany
| | - B Godde
- Department of Psychology and Methods, Jacobs University Bremen gGmbH, Campus Ring 1, Bremen, 28759, Germany
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22
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Pires de Sousa MV, Ferraresi C, Kawakubo M, Kaippert B, Yoshimura EM, Hamblin MR. Transcranial low-level laser therapy (810 nm) temporarily inhibits peripheral nociception: photoneuromodulation of glutamate receptors, prostatic acid phophatase, and adenosine triphosphate. NEUROPHOTONICS 2016; 3:015003. [PMID: 26835486 PMCID: PMC4725212 DOI: 10.1117/1.nph.3.1.015003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 12/09/2015] [Indexed: 05/13/2023]
Abstract
Photobiomodulation or low-level light therapy has been shown to attenuate both acute and chronic pain, but the mechanism of action is not well understood. In most cases, the light is applied to the painful area, but in the present study we applied light to the head. We found that transcranial laser therapy (TLT) applied to mouse head with specific parameters (810 nm laser, [Formula: see text], 7.2 or [Formula: see text]) decreased the reaction to pain in the foot evoked either by pressure (von Frey filaments), cold, or inflammation (formalin injection) or in the tail (evoked by heat). The pain threshold increasing is maximum around 2 h after TLT, remains up to 6 h, and is finished 24 h after TLT. The mechanisms were investigated by quantification of adenosine triphosphate (ATP), immunofluorescence, and hematoxylin and eosin (H&E) staining of brain tissues. TLT increased ATP and prostatic acid phosphatase (an endogenous analgesic) and reduced the amount of glutamate receptor (mediating a neurotransmitter responsible for conducting nociceptive information). There was no change in the concentration of tubulin, a constituent of the cytoskeleton, and the H&E staining revealed no tissue damage. This is the first study to show inhibition of peripheral pain due to photobiomodulation of the central nervous system.
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Affiliation(s)
- Marcelo Victor Pires de Sousa
- Massachusetts General Hospital, Wellman Center for Photomedicine, BAR414, 40 Blossom Street, Boston, Massachusetts 02114, United States
- University of São Paulo, Institute of Physics, Laboratory of Radiation Dosimetry and Medical Physics, Rua do Matão, Travessa R, 187, Cidade Universitária, São Paulo, Brazil
- Bright Photomedicine Ltd., CIETEC Building, 2242 Lineu Prestes, São Paulo 05508-000, Brazil
| | - Cleber Ferraresi
- Massachusetts General Hospital, Wellman Center for Photomedicine, BAR414, 40 Blossom Street, Boston, Massachusetts 02114, United States
- Federal University of São Carlos, Department of Physical Therapy, Laboratory of Electro-Thermo-Phototherapy, Street Washington Luis, km 235. Monjolinho, São Carlos, São Paulo 13565-905, Brazil
- Federal University of São Carlos, Post-Graduation Program in Biotechnology, Street Washington Luis, km 235. Monjolinho, São Carlos, São Paulo 13560-000, Brazil
- University of São Paulo, Optics Group, Physics Institute of São Carlos, Street Miguel Petroni, 146–Jardim Bandeirantes, São Carlos, São Paulo 13560-970, Brazil
| | - Masayoshi Kawakubo
- Massachusetts General Hospital, Wellman Center for Photomedicine, BAR414, 40 Blossom Street, Boston, Massachusetts 02114, United States
| | - Beatriz Kaippert
- Massachusetts General Hospital, Wellman Center for Photomedicine, BAR414, 40 Blossom Street, Boston, Massachusetts 02114, United States
- Federal University of Rio de Janeiro, Carlos Chagas Filho, 373–Cidade Universitária, Rio de Janeiro, RJ 21941-170, Brazil
| | - Elisabeth Mateus Yoshimura
- University of São Paulo, Institute of Physics, Laboratory of Radiation Dosimetry and Medical Physics, Rua do Matão, Travessa R, 187, Cidade Universitária, São Paulo, Brazil
| | - Michael R. Hamblin
- Massachusetts General Hospital, Wellman Center for Photomedicine, BAR414, 40 Blossom Street, Boston, Massachusetts 02114, United States
- Harvard Medical School, Department of Dermatology, 50 Staniford Street #807, Boston, Massachusetts 02114, United States
- Harvard-MIT, Division of Health Sciences and Technology, 77 Massachusetts Avenue, E25-518, Cambridge, Massachusetts 02139, United States
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23
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Bradman MJ, Ferrini F, Salio C, Merighi A. Practical mechanical threshold estimation in rodents using von Frey hairs/Semmes–Weinstein monofilaments: Towards a rational method. J Neurosci Methods 2015; 255:92-103. [DOI: 10.1016/j.jneumeth.2015.08.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 12/27/2022]
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