1
|
Arthur P, Kalvala AK, Surapaneni SK, Singh MS. Applications of Cannabinoids in Neuropathic Pain: An Updated Review. Crit Rev Ther Drug Carrier Syst 2024; 41:1-33. [PMID: 37824417 DOI: 10.1615/critrevtherdrugcarriersyst.2022038592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Neuropathic pain is experienced due to injury to the nerves, underlying disease conditions or toxicity induced by chemotherapeutics. Multiple factors can contribute to neuropathic pain such as central nervous system (CNS)-related autoimmune and metabolic disorders, nerve injury, multiple sclerosis and diabetes. Hence, development of pharmacological interventions to reduce the drawbacks of existing chemotherapeutics and counter neuropathic pain is an urgent unmet clinical need. Cannabinoid treatment has been reported to be beneficial for several disease conditions including neuropathic pain. Cannabinoids act by inhibiting the release of neurotransmitters from presynaptic nerve endings, modulating the excitation of postsynaptic neurons, activating descending inhibitory pain pathways, reducing neural inflammation and oxidative stress and also correcting autophagy defects. This review provides insights on the various preclinical and clinical therapeutic applications of cannabidiol (CBD), cannabigerol (CBG), and cannabinol (CBN) in various diseases and the ongoing clinical trials for the treatment of chronic and acute pain with cannabinoids. Pharmacological and genetic experimental strategies have well demonstrated the potential neuroprotective effects of cannabinoids and also elaborated their mechanism of action for the therapy of neuropathic pain.
Collapse
Affiliation(s)
- Peggy Arthur
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA
| | - Anil Kumar Kalvala
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA
| | - Sunil Kumar Surapaneni
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA
| | - Mandip Sachdeva Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA
| |
Collapse
|
2
|
Hickey DG, Edwards TL, Barnard AR, Singh MS, de Silva SR, McClements ME, Flannery JG, Hankins MW, MacLaren RE. Tropism of engineered and evolved recombinant AAV serotypes in the rd1 mouse and ex vivo primate retina. Gene Ther 2017; 24:787-800. [PMID: 28872643 PMCID: PMC5746594 DOI: 10.1038/gt.2017.85] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 07/19/2017] [Accepted: 08/23/2017] [Indexed: 11/09/2022]
Abstract
There is much debate on the adeno-associated virus (AAV) serotype that best targets specific retinal cell types and the route of surgical delivery-intravitreal or subretinal. This study compared three of the most efficacious AAV vectors known to date in a mouse model of retinal degeneration (rd1 mouse) and macaque and human retinal explants. Green fluorescent protein (GFP) driven by a ubiquitous promoter was packaged into three AAV capsids: AAV2/8(Y733F), AAV2/2(quad Y-F) and AAV2/2(7m8). Overall, AAV2/2(7m8) transduced the largest area of retina and resulted in the highest level of GFP expression, followed by AAV2/2(quad Y-F) and AAV2/8(Y733F). AAV2/2(7m8) and AAV2/2(quad Y-F) both resulted in similar patterns of transduction whether they were injected intravitreally or subretinally. AAV2/8(Y733F) transduced a significantly smaller area of retina when injected intravitreally compared with subretinally. Retinal ganglion cells, horizontal cells and retinal pigment epithelium expressed relatively high levels of GFP in the mouse retina, whereas amacrine cells expressed low levels of GFP and bipolar cells were infrequently transduced. Cone cells were the most frequently transduced cell type in macaque retina explants, whereas Müller cells were the predominant transduced cell type in human retinal explants. Of the AAV serotypes tested, AAV2/2(7m8) was the most effective at transducing a range of cell types in degenerate mouse retina and macaque and human retinal explants.
Collapse
Affiliation(s)
- D G Hickey
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK
| | - T L Edwards
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK
| | - A R Barnard
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK
| | - M S Singh
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK.,Moorfields Eye Hospital NHS Foundation Trust NIHR Biomedical Research Centre, London, UK
| | - S R de Silva
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK
| | - M E McClements
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK
| | - J G Flannery
- Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, USA
| | - M W Hankins
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK.,Sleep and Circadian Neuroscience Institute, University of Oxford, Oxford, UK
| | - R E MacLaren
- Nuffield Laboratory of Ophthalmology, University of Oxford, Oxford, UK.,Moorfields Eye Hospital NHS Foundation Trust NIHR Biomedical Research Centre, London, UK.,Oxford University Hospitals NHS Trust Biomedical Research Centre, Oxford, UK
| |
Collapse
|
3
|
Singh MS, Joy KP. Castration-induced hyperactivity of seminal vesicle in the catfish Clarias batrachus: a case of paradox and blockade by antiandrogen (cyproterone acetate) treatment. Acta Biol Hung 2001; 52:91-103. [PMID: 11396845 DOI: 10.1556/abiol.52.2001.1.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Castration of the catfish Clarias batrachus in late preparatory-early prespawning phase (April-May) caused time-dependent stimulatory effect on morphology, weight, and in the concentrations of biochemical correlates, such as total proteins, fructose, hexosamines and sialic acid in the seminal vesicle (SV). The peak changes were noticed on week 4 of castration. The hyperactivity was related to augmented production of testosterone by the SV of castrates with the levels significantly high from week 3 onwards. As a result, serum testosterone level fluctuated with a significant decrease in the first and fifth weeks, a significant increase in the third week, and no significant difference in the second and fourth weeks. Serum E2 level decreased significantly throughout. Cyproterone acetate treatment (CA; 1 mg/fish daily for 21 days) from the second day of castration decreased the size and weight of the SV and the concentrations of total proteins, hexosamines, fructose and sialic acid. The antiandrogen treatment did not alter serum testosterone level but the E2 level was significantly decreased. It is concluded that the hypersecretory activity of the SV in castrates is a sequel to local synthesis and action of testosterone and the effect could be prevented by CA by blocking androgen actions.
Collapse
Affiliation(s)
- M S Singh
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | | |
Collapse
|
4
|
Singh MS, Joy KP. Effects of ovine LH, GH and prolactin, and testosterone on serum testosterone and estradiol-17 beta levels, and seminal vesicle and testicular activity in the catfish Clarias batrachus (L.). Indian J Exp Biol 2001; 39:52-6. [PMID: 11349526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Intraperitoneal administrations of testosterone (0.5 microgram/g body wt), and ovine LH (1.0 microgram/g body wt), GH (5 micrograms/g body wt) and prolactin (10 micrograms/g body wt) daily for 7 days during early prespawning phase (May) in C. batrachus produced varied effects on seminal vesicle (SVSI) and testicular (GSI) weights and biochemical correlates. Testosterone and LH treatments significantly increased serum testosterone level and concentrations of total proteins, fructose, hexosamines and sialic acid in both seminal vesicles and testis. Serum E2 levels increased significantly only after testosterone treatment. GH treatment increased significantly serum testosterone level and only the concentrations of SV hexosamines and testicular protein. Prolactin, however, significantly lowered serum testosterone level and concentrations of total protein, hexosamines in both SV and testis, and testicular fructose and sialic acid levels. The results show that the stimulating effect of LH and GH on SV and testicular activity is mediated through the increased secretion of testosterone and the inhibitory effect of prolactin by decreased testosterone secretion.
Collapse
Affiliation(s)
- M S Singh
- Department of Zoology, Banaras Hindu University, Varanasi 221 005
| | | |
Collapse
|
5
|
Singh MS, Joy KP. Methallibure inhibition of testicular and seminal vesicle activity in catfish, Clarias batrachus (Linn.): a study correlating changes in serum sex steroid profiles. Acta Biol Hung 2000; 51:45-53. [PMID: 10866360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The administration of methallibure (2 microg/g BW, daily for 15 days) in Clarias batrachus in prespawning phase (May-June) resulted in decreased weights of seminal vesicle (SV) and testis, and reductions in the concentrations of total proteins, fructose, hexosamines, and sialic acid in SV and testis. The inhibitory changes can be attributed to impairment of steroidogenesis, serum levels of testosterone and estradiol -17beta decreased significantly. Withdrawal of methallibure treatment for 7 and 15 days resulted in gradual recovery and restoration of all the above parameters except the sialic acid levels in the SV and testis, and fructose level in the SV. The methallibure induced regressive changes in the SV and testis were discussed in the light of its GTH inhibiting property.
Collapse
Affiliation(s)
- M S Singh
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | | |
Collapse
|
6
|
Snavely RA, Key MH, Hatchett SP, Cowan TE, Roth M, Phillips TW, Stoyer MA, Henry EA, Sangster TC, Singh MS, Wilks SC, MacKinnon A, Offenberger A, Pennington DM, Yasuike K, Langdon AB, Lasinski BF, Johnson J, Perry MD, Campbell EM. Intense high-energy proton beams from Petawatt-laser irradiation of solids. Phys Rev Lett 2000; 85:2945-2948. [PMID: 11005974 DOI: 10.1103/physrevlett.85.2945] [Citation(s) in RCA: 366] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2000] [Indexed: 05/23/2023]
Abstract
An intense collimated beam of high-energy protons is emitted normal to the rear surface of thin solid targets irradiated at 1 PW power and peak intensity 3x10(20) W cm(-2). Up to 48 J ( 12%) of the laser energy is transferred to 2x10(13) protons of energy >10 MeV. The energy spectrum exhibits a sharp high-energy cutoff as high as 58 MeV on the axis of the beam which decreases in energy with increasing off axis angle. Proton induced nuclear processes have been observed and used to characterize the beam.
Collapse
Affiliation(s)
- R A Snavely
- Lawrence Livermore National Laboratory, University of California, P. O. Box 808, Livermore, California 94550, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Madhavan M, Othman NH, Singh MS, Indudharan R, Sharma HS, Shamsuddin AR. Kimura's disease: a report of three cases with a brief review of literature. Acta Otorhinolaryngol Ital 2000; 20:284-9. [PMID: 11234448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Kimura's disease (KD) is an uncommon chronic inflammatory condition of unknown aetiology involving subcutaneous tissue, presenting as a tumor like lesion with a predilection for the head and neck region. Clinically it is often confused with parotid tumor with lymph node metastasis. It is difficult to diagnose before tissue biopsy. Fine needle aspiration cytology has only limited value. Unless the pathologists are aware of this entity, it might be misdiagnosed. Surgery, radiotherapy and steroid therapy have been tried but none is proved best and recurrence is common. Three cases of KD seen in our hospital and the problems encountered in them are presented.
Collapse
Affiliation(s)
- M Madhavan
- Department of pathology, School of Medical Sciences, Universiti Sains Malaysia.
| | | | | | | | | | | |
Collapse
|
8
|
Joy KP, Singh MS, Senthilkumaran B, Goos HJ. Pituitary-gonadal Relationship in the Catfish Clarias batrachus (L): A Study Correlating Gonadotrophin-II and Sex Steroid Dynamics. Zoolog Sci 2000; 17:395-404. [PMID: 18494596 DOI: 10.2108/jsz.17.395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/1999] [Accepted: 10/22/1999] [Indexed: 11/17/2022]
Abstract
A heterologous radioimmunoassay was developed for measuring gonadotrophin-II (GTH-II) in the catfish Clarias batrachus. Serum and/or pituitary levels of GTH-II showed significant annual/seasonal variations in male and female catfish, which could be correlated with both gonadosomatic index and/or serum testosterone level. GTH-II was not detected in resting phase, increased during gonadal recrudescence to peak values in late prespawning /spawning phases, and declined to low values in postspawning phase. During gonadal recrudescence, the pituitary and serum levels of GTH-II maintained positive or inverse relationships implying differential rates of hormone release and synthesis/storage. Gonadectomy resulted in increased release of GTH-II; the release pattern varied in females and hemi-castrated or completely castrated males. In females, the GTH-II increase followed a distinct biphasic pattern with the peak rise at week 4 of ovariectomy. In males, castration resulted in significant rise of serum GTH-II levels at all duration except week 5, but the magnitude of the rise was higher in completely castrated fish (weeks 1, 2 and 3). Testosterone replacement in 3-week hemi-castrated fish restored the GTH-II level to that of the sham control vehicle group. In intact fish, administration of testosterone elicited an increase in serum GTH-II levels in the low dose (0.25 and 0.5 mug / g BW) groups and no change in the high dose (1.0 mug / g BW) group. Methallibure treatment inhibited GTH-II levels in a dose-dependent manner. The reduction was greater in males. Withdrawal of the drug treatment restored the GTH-II and testosterone levels after 15 days in the low dose group (2 mug / g BW). The results indicate that there exists a dynamic positive or negative feedback relationship between gonadal steroids and GTH-II, which is essential to control the release and availability of circulating GTH-II.
Collapse
|
9
|
Singh MS, Joy KP. Effects of administration of testosterone on seminal vesicle activity in the catfish Clarias batrachus during preparatory phase: a study correlating changes in testis and serum sex steroid levels. Acta Biol Hung 1998; 48:421-30. [PMID: 9847455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
In the catfish Clarias batrachus administration of testosterone (0.25, 0.5 and 1.0 microgram/g BW for 30 days) during the preparatory phase increased significantly gonadosomatic index (GSI), seminal vesicle-somatic index (SV-SI) and concentrations of proteins, fructose, hexosamines, and sialic acid in the SV and testis in a dose-dependent manner. These stimulatory effects could be correlated positively with the increase of serum testosterone level. Serum estradiol-17 beta was also significantly high in the testosterone groups.
Collapse
Affiliation(s)
- M S Singh
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | | |
Collapse
|
10
|
Singh MS, Joy KP. Precocious recrudescence of seminal vesicle and testis in catfish, Clarias batrachus (Linn.), subjected to a long photoperiod regime. Indian J Exp Biol 1998; 36:1264-8. [PMID: 10093510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The catfish C. batrachus were exposed to a long photoperiod of 14 hr light during resting--early preparatory (December-February) phases of the reproductive cycle. At 70-day sampling, both the seminal vesicle (SV) and testis registered marked stimulatory effects in comparisons to control fish maintained under approximately 10.55 L:13.45D as shown by the increased size and weight. In both the SV and testis, concentrations of total proteins, fructose, hexosamines, and sialic acid were significantly high compared to those of the control fish indicating increased activities of the organs. Serum levels of gonadotropin-II, testosterone, and estradiol-17 beta were significantly high in the long photoperiod group. The results show that exposure to long photoperiod can stimulate early development of both the SV and testis by activating the pituitary--gonadal axis.
Collapse
Affiliation(s)
- M S Singh
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | | |
Collapse
|
11
|
Bhatia PL, Singh MS, Jha BK. Laryngopathia gravidarum. Ear Nose Throat J 1981; 60:408-12. [PMID: 7318714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
|
12
|
Banerjee AK, Singh MS, Kak VK, Talwar P, Rout D. Cerebral aspergillosis report of 8 cases. INDIAN J PATHOL MICR 1977; 20:91-9. [PMID: 608764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
|
13
|
Thomas MD, Chopra JS, Banerjee AK, Singh MS. Tuberculous meningitis (a clinico-pathological study). Neurol India 1977; 25:26-34. [PMID: 593496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|