151
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Berkiks I, Benmhammed H, Mesfioui A, Ouichou A, El Hasnaoui A, Mouden S, Touil T, Bahbiti Y, Nakache R, El Hessni A. Postnatal melatonin treatment protects against affective disorders induced by early-life immune stimulation by reducing the microglia cell activation and oxidative stress. Int J Neurosci 2017; 128:495-504. [PMID: 29077529 DOI: 10.1080/00207454.2017.1398156] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Systemic inflammation induced by neonatal infection may result as long-term hyper-activation of microglial cells followed by an overproduction of pro-inflammatory cytokines, such as tumor necrosis factor-alpha, nitric oxide and lipid peroxidation. Those inflammation mediators can trigger behavioral disruption and/or cognitive disorders. OBJECTIVE The present work aims to evaluate the effect of melatonin (a cytokine release modulator and antioxidant agent) in the reduction of the prefrontal microglia activation and depressive-like behaviors induced by lipopolysaccharide (LPS) injection in adult rats. RESULTS The effect of melatonin (5 mg/kg) was compared to minocycline (50 mg/kg), a well-known anti-inflammatory drug with potent inhibitory effect on microglial activation. Our results showed that LPS injection induced a significant increase in prefrontal cortex tumor necrosis factor-alpha and nitric oxide levels. Furthermore, lipid peroxidation and microglial activation were highly increased in the prefrontal cortex compared to control. The melatonin treatment induced a significant decrease on nitric oxide and lipid peroxidation levels in the prefrontal cortex and significant decrease on tumor necrosis factor-alpha and microglia activation. Melatonin can also induce a significant reduction in the anxiety and depression-like effect induced by PND9 LPS administration. CONCLUSION Our results demonstrated that melatonin possesses potent protective effect against the depression and anxiety induced by LPS. The underlying effect of melatonin is probably due to the reduction of nitric oxide toxic effect and lipid peroxidation in addition to its anti-inflammatory effect.
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Affiliation(s)
- I Berkiks
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - H Benmhammed
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - A Mesfioui
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - A Ouichou
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - A El Hasnaoui
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - S Mouden
- b Provincial Laboratory of Serology , Diagnostic Centre, Regional Hospital El Idrissi , Kenitra
| | - T Touil
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - Y Bahbiti
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - R Nakache
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
| | - A El Hessni
- a Department of Biology, Laboratory of Genetic, Neuroendocrinology, and Biotechnology, Faculty of Sciences , Ibn Tofail University , Kenitra , Morocco
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Shahbazi S, Kaur J, Singh S, Achary KG, Wani S, Jema S, Akhtar J, Sobti RC. Impact of novel N-aryl piperamide NO donors on NF-κB translocation in neuroinflammation: rational drug-designing synthesis and biological evaluation. Innate Immun 2017; 24:24-39. [PMID: 29145791 PMCID: PMC6830765 DOI: 10.1177/1753425917740727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
NO donor drugs showed a significant therapeutic effect in the treatment of many
diseases, such as arteriopathies, various acute and chronic inflammatory
conditions, and several degenerative diseases. NO-releasing anti-inflammatory
drugs are the prototypes of a novel class of compounds, combining the
pharmacological activities of anti-inflammatory and anti-nociceptive of drugs
with those of NO, thus possessing potential therapeutic applications in a great
variety of diseases. In this study, we designed and predicted biological
activity by targeting cyclooxygenase type 2 (COX-2) and NF-κB subunits and
pharmacological profiling along with toxicity predictions of various
N-aryl piperamides linked via an ester bond to a spacer
that is bound to a NO-releasing moiety (-ONO2). The result of absorption,
distribution, metabolism and excretion and Docking studies indicated that among
51 designed molecules PA-3′K showed the best binding potential in both the
substrate and inhibitory binding pocket of the COX-2 enzyme with affinity values
of –9.33 and –5.12 for PDB ID 1CVU and 3LN1, respectively, thereby having the
potential to be developed as a therapeutic agent. The results of cell
viabilities indicated that PA-3′k possesses the best cell viability property
with respect to its dose (17.33 ng/ml), with 67.76% and 67.93% viable cells for
CHME3 and SVG cell lines, respectively.
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Affiliation(s)
- Sajad Shahbazi
- Department of Biotechnology, Panjab
University, Chandigarh, India
- Sajad Shahbazi, Department of Biotechnology,
Panjab University, Chandigarh, 160014, India.
| | - Jagdeep Kaur
- Department of Biotechnology, Panjab
University, Chandigarh, India
| | - Shikha Singh
- Center of Biotechnology, Siksha O
Anusandhan University, Khandagiri, Bhubaneswar, Odisha, India
| | | | - Sameena Wani
- Department of Experimental Medicine and
Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh,
India
| | | | - Jabed Akhtar
- Imgenex India, E5, Infocity,
Bhubaneswar, Odisha, India
| | - Ranbir Chander Sobti
- Department of Biotechnology, Panjab
University, Chandigarh, India
- Babasaheb Bhimrao Ambedkar University,
Lucknow, India
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153
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Iron deposition in substantia nigra: abnormal iron metabolism, neuroinflammatory mechanism and clinical relevance. Sci Rep 2017; 7:14973. [PMID: 29097764 PMCID: PMC5668412 DOI: 10.1038/s41598-017-14721-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 10/17/2017] [Indexed: 11/08/2022] Open
Abstract
Parkinson disease (PD) is associated with multiple factors, including iron, which is demonstrated to deposit excessively in PD brains. We detected iron deposition by susceptibility weighted image (SWI) and measured the levels of iron metabolism-related proteins and inflammatory factors in cerebrospinal fluid (CSF) and serum of PD patients and control subjects. Clinical symptoms of PD were evaluated by series of rating scales. Relationships among above factors were analyzed. Results showed that corrected phase (CP) value of substantia nigra (SN) was significantly decreased in PD group compared to control group, hence, SN was the main region with excessive iron deposition. In PD group, ferritin was significantly elevated in CSF and reduced in serum compared to control group, and levels of ferritin in CSF and serum were both significantly and positively correlated with CP value of SN, thus, abnormal iron metabolism in central and peripheral systems was associated with iron deposition. CP value of SN in PD group was significantly and negatively correlated with interleukin-1β level in CSF, so interleukin-1β might be a neuroinflammatory factor produced by excessive iron in SN. Iron deposition in SN was significantly correlated with motor symptoms and part of non-motor symptoms of PD.
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154
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Domínguez Rubio AP, Correa F, Aisemberg J, Dorfman D, Bariani MV, Rosenstein RE, Zorrilla Zubilete M, Franchi AM. Maternal administration of melatonin exerts short- and long-term neuroprotective effects on the offspring from lipopolysaccharide-treated mice. J Pineal Res 2017; 63. [PMID: 28776755 DOI: 10.1111/jpi.12439] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/31/2017] [Indexed: 01/02/2023]
Abstract
Preterm birth is a major contributor to early and delayed physical and cognitive impairment. Epidemiological and experimental data indicate that maternal infections are a significant and preventable cause of preterm birth. Recently, melatonin has been suggested to exert neuroprotective effects in several models of brain injury. Here, we sought to investigate whether the administration of melatonin is able to prevent lipopolysaccharide (LPS)-induced fetal brain damage in a model of LPS-induced preterm labor. For this purpose, 15-day pregnant BALB/c mice received intraperitoneally 2 doses of LPS or vehicle: the first one at 10:00 hours (0.26 mg/kg) and the second at 13:00 hours (0.52 mg/kg). On day 14 of pregnancy, a group of mice was subcutaneously implanted with a pellet of 25 mg melatonin. This experimental protocol resulted in 100% of preterm birth and pup death in the LPS group and a 50% of term birth and pup survival in the melatonin + LPS group. In the absence of melatonin, fetuses from LPS-treated mothers showed histological signs of brain damage, microglial/macrophage activation, and higher levels of IL-1β, inducible nitric oxide synthase (NOS), and neuronal NOS mRNAs as well as increased histone acetyltransferase activity and histone H3 hyperacetylation. In contrast, antenatal administration of melatonin prevented LPS-induced fetal brain damage. Moreover, when behavioral traits were analyzed in the offspring from control, melatonin, and melatonin + LPS, no significant differences were found, suggesting that melatonin prevented LPS-induced long-term neurodevelopmental impairments. Collectively, our results suggest that melatonin could be a new therapeutic tool to prevent fetal brain damage and its long-term consequences induced by maternal inflammation.
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Affiliation(s)
- Ana Paula Domínguez Rubio
- Laboratorio de Fisiopatología de la Preñez y el Parto, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernando Correa
- Laboratorio de Fisiopatología de la Preñez y el Parto, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Julieta Aisemberg
- Laboratorio de Fisiopatología de la Preñez y el Parto, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Damián Dorfman
- Laboratorio de Neuroquimíca Retiniana y Oftalmología Experimental, Departamento de Bioquímica Humana, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Victoria Bariani
- Laboratorio de Fisiopatología de la Preñez y el Parto, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ruth Estela Rosenstein
- Laboratorio de Neuroquimíca Retiniana y Oftalmología Experimental, Departamento de Bioquímica Humana, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Zorrilla Zubilete
- Laboratorio de Neuropsicofarmacología del Estrés, Departamento de Farmacología, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ana María Franchi
- Laboratorio de Fisiopatología de la Preñez y el Parto, Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
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155
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Roswall N, Bidstrup PE, Raaschou-Nielsen O, Solvang Jensen S, Overvad K, Halkjær J, Sørensen M. Residential road traffic noise exposure and colorectal cancer survival - A Danish cohort study. PLoS One 2017; 12:e0187161. [PMID: 29084272 PMCID: PMC5662233 DOI: 10.1371/journal.pone.0187161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 10/15/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Residential traffic noise exposure may entail sleep disruption and compromised circadian functioning; two factors which have been associated with a poor colorectal cancer (CRC) prognosis. Hence, the aim of the present study was to investigate the association between residential road traffic noise and CRC survival. METHODS AND MATERIALS Road traffic noise was calculated for all residential addresses from 1987 to February 2012 for incident CRC cases (n = 1,234) in a cohort of 57,053 Danes. We used Cox Proportional Hazard Models to investigate the association between residential road traffic noise at different time-windows, and overall and CRC-specific mortality. Furthermore, we investigated interaction with sex, age, prognostic factors, and comorbidity. Mortality Rate Ratios (MRR) were calculated in unadjusted models, and adjusted for railway noise, lifestyle factors, and socioeconomic variables. RESULTS During a median follow-up of 4 years, 594 patients died; 447 from CRC. We found no association between road traffic noise exposure and overall (MRR 1.00 (0.88-1.13) per 10 dB) or CRC-specific mortality (MRR 0.98 (0.85-1.13) per 10 dB) over the entire follow-up period, or 1 year preceding death. Results did not differ when examining colon and rectal cancer separately. Interaction analyses suggested that patients with less clinically advanced disease could be more susceptible to harmful effects of traffic noise. CONCLUSION The present study suggests no overall association between residential road traffic noise and concurrent mortality in CRC patients. As it is the first study of its kind, with relatively limited power, further studies are warranted.
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Affiliation(s)
- Nina Roswall
- Danish Cancer Society Research Center, Copenhagen, Denmark
- * E-mail:
| | | | | | | | - Kim Overvad
- Department of Public Health, Section for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Jytte Halkjær
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Mette Sørensen
- Danish Cancer Society Research Center, Copenhagen, Denmark
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156
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Lorente L. Biomarkers Associated with the Outcome of Traumatic Brain Injury Patients. Brain Sci 2017; 7:brainsci7110142. [PMID: 29076989 PMCID: PMC5704149 DOI: 10.3390/brainsci7110142] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 09/24/2017] [Accepted: 10/20/2017] [Indexed: 12/16/2022] Open
Abstract
This review focuses on biomarkers associated with the outcome of traumatic brain injury (TBI) patients, such as caspase-3; total antioxidant capacity; melatonin; S100B protein; glial fibrillary acidic protein (GFAP); glutamate; lactate; brain-derived neurotrophic factor (BDNF); substance P; neuron-specific enolase (NSE); ubiquitin carboxy-terminal hydrolase L-1 (UCH-L1); tau; decanoic acid; and octanoic acid.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife 38320, Spain.
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157
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Favero G, Franceschetti L, Bonomini F, Rodella LF, Rezzani R. Melatonin as an Anti-Inflammatory Agent Modulating Inflammasome Activation. Int J Endocrinol 2017; 2017:1835195. [PMID: 29104591 PMCID: PMC5643098 DOI: 10.1155/2017/1835195] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 08/27/2017] [Indexed: 12/22/2022] Open
Abstract
Inflammation may be defined as the innate response to harmful stimuli such as pathogens, injury, and metabolic stress; its ultimate function is to restore the physiological homeostatic state. The exact aetiology leading to the development of inflammation is not known, but a combination of genetic, epigenetic, and environmental factors seems to play an important role in the pathogenesis of many inflammation-related clinical conditions. Recent studies suggest that the pathogenesis of different inflammatory diseases also involves the inflammasomes, intracellular multiprotein complexes that mediate activation of inflammatory caspases thereby inducing the secretion of proinflammatory cytokines. Melatonin, an endogenous indoleamine, is considered an important multitasking molecule with fundamental clinical applications. It is involved in mood modulation, sexual behavior, vasomotor control, and immunomodulation and influences energy metabolism; moreover, it acts as an oncostatic and antiaging molecule. Melatonin is an important antioxidant and also a widespread anti-inflammatory molecule, modulating both pro- and anti-inflammatory cytokines in different pathophysiological conditions. This review, first, gives an overview concerning the growing importance of melatonin in the inflammatory-mediated pathological conditions and, then, focuses on its roles and its protective effects against the activation of the inflammasomes and, in particular, of the NLRP3 inflammasome.
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Affiliation(s)
- Gaia Favero
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Lorenzo Franceschetti
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Francesca Bonomini
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- Interdepartmental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, Brescia, Italy
| | - Luigi Fabrizio Rodella
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- Interdepartmental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, Brescia, Italy
| | - Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- Interdepartmental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, Brescia, Italy
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158
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Muszyńska B, Grzywacz-Kisielewska A, Kała K, Gdula-Argasińska J. Anti-inflammatory properties of edible mushrooms: A review. Food Chem 2017; 243:373-381. [PMID: 29146352 DOI: 10.1016/j.foodchem.2017.09.149] [Citation(s) in RCA: 188] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/08/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
Abstract
Mushrooms have been used extensively, owing to their nutritional and medicinal value, for thousands of years. Modern research confirms the therapeutic effect of traditionally used species. Inflammation is a natural response of the immune system to damaging factors, e.g. physical, chemical and pathogenic. Deficiencies of antioxidants, vitamins, and microelements, as well as physiological processes, such as aging, can affect the body's ability to resolve inflammation. Mushrooms are rich in anti-inflammatory components, such as polysaccharides, phenolic and indolic compounds, mycosteroids, fatty acids, carotenoids, vitamins, and biometals. Metabolites from mushrooms of the Basidiomycota taxon possess antioxidant, anticancer, and most significantly, anti-inflammatory properties. Recent reports indicate that edible mushroom extracts exhibit favourable therapeutic and health-promoting benefits, particularly in relation to diseases associated with inflammation. In all certainty, edible mushrooms can be referred to as a "superfood" and are recommended as a valuable constituent of the daily diet.
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Affiliation(s)
- Bożena Muszyńska
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland.
| | - Agata Grzywacz-Kisielewska
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Katarzyna Kała
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Joanna Gdula-Argasińska
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
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159
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Liu G, Jiang Q, Chen S, Fang J, Ren W, Yin J, Yao K, Yin Y. Melatonin alters amino acid metabolism and inflammatory responses in colitis mice. Amino Acids 2017; 49:2065-2071. [PMID: 28929336 DOI: 10.1007/s00726-017-2489-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/11/2017] [Indexed: 12/21/2022]
Abstract
Inflammatory bowel disease is a chronic inflammatory dysfunction of the gastrointestinal tract. This study explored the hypothesis that melatonin has beneficial functions in the mouse model of colitis induced by dextran sodium sulfate (DSS), with a specific focus on the expression of intestinal inflammatory cytokines and the serum levels of amino acids. The results revealed that mice with melatonin supplementation had a reduction in weight loss and disease index induced by DSS treatment. Melatonin stifled the expression of colonic IL-17 in mice with DSS-induced colitis. Melatonin also lowered the serum levels of Asp, Ser, Met, and Leu (p < 0.05), but increased those of Glu and Cys (p < 0.05). Thus, melatonin treatment is promising and may function as a potential adjuvant therapy to alleviate the clinical symptoms of patients with inflammatory bowel disease.
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Affiliation(s)
- Gang Liu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China
| | - Qian Jiang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China
| | - Shuai Chen
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Wenkai Ren
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China.
| | - Jie Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China
| | - Kang Yao
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China.
| | - Yulong Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125, Hunan, China.,Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.,College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
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160
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Ansari M, Karkhaneh A, Kheirollahi A, Emamgholipour S, Rafiee MH. The effect of melatonin on gene expression of calcitonin gene-related peptide and some proinflammatory mediators in patients with pure menstrual migraine. Acta Neurol Belg 2017; 117:677-685. [PMID: 28584969 DOI: 10.1007/s13760-017-0803-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 05/29/2017] [Indexed: 01/20/2023]
Abstract
The neuropeptide calcitonin gene-related peptide (CGRP), a potent vasoactive and a marker of trigeminal inflammation, has been considered as an important mediator in various types of migraine such as pure menstrual migraine. Earlier studies have shown that CGRP can modulate the synthesis and release of other inflammatory factor including nitric oxide (NO) and interleukin-1beta (IL-1β) from trigeminal ganglion glial cells. Exogenous melatonin protects the tissues from inflammatory damages. The goal of this study was to determine the anti-inflammatory effects of melatonin on the CGRP expression, inducible nitric oxide synthase (iNOS) activity, NO, and IL-1β release in cultured peripheral blood mononuclear cells (PBMCs) from pure menstrual migraine patients and healthy subjects. This study was performed on 12 pure menstrual migraine patients and 12 age-and sex-matched healthy subjects. PBMCs were isolated and treated with melatonin for 12 h at pharmacological dose. Gene expression was evaluated by real-time PCR. CGRP and IL-1β proteins in culture supernatant were determined by ELISA method. iNOS activity in PBMCs was determined by colorimetric assays. Total nitrite as an indicator of NO concentrations in the culture supernatants was measured using Griess method. We found that melatonin treatment significantly decreases mRNA expression of CGRP release, NO production, and iNOS activity in the patient groups. Taken together, it appears that melatonin reduces inflammation through decreasing CGRP level and iNOS activity in the patients with migraine; however, further studies are needed in this regard.
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Affiliation(s)
- Mohammad Ansari
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Azam Karkhaneh
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Reference Laboratory, Social Security Organization, Tehran, Iran.
| | - Asma Kheirollahi
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Solaleh Emamgholipour
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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161
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Ahn JH, Kim HD, Abuzar SM, Lee JY, Jin SE, Kim EK, Hwang SJ. Intracorneal melatonin delivery using 2-hydroxypropyl-β-cyclodextrin ophthalmic solution for granular corneal dystrophy type 2. Int J Pharm 2017; 529:608-616. [DOI: 10.1016/j.ijpharm.2017.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 11/17/2022]
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162
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Serum melatonin levels in survivor and non-survivor patients with traumatic brain injury. BMC Neurol 2017; 17:138. [PMID: 28724361 PMCID: PMC5518120 DOI: 10.1186/s12883-017-0922-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 07/13/2017] [Indexed: 12/23/2022] Open
Abstract
Background Circulating levels of melatonin in patients with traumatic brain injury (TBI) have been determined in a little number of studies with small sample size (highest sample size of 37 patients) and only were reported the comparison of serum melatonin levels between TBI patients and healthy controls. As to we know, the possible association between circulating levels of melatonin levels and mortality of patients with TBI have not been explored; thus, the objective of our current study was to determine whether this association actually exists. Methods This multicenter study included 118 severe TBI (Glasgow Coma Scale <9) patients. We measured serum levels of melatonin, malondialdehyde (to assess lipid peroxidation) and total antioxidant capacity (TAC) at day 1 of severe TBI. We used mortality at 30 days as endpoint. Results We found that non-survivor (n = 33) compared to survivor (n = 85) TBI patients showed higher circulating levels of melatonin (p < 0.001), TAC (p < 0.001) and MDA (p < 0.001). We found that serum melatonin levels predicted 30-day mortality (Odds ratio = 1.334; 95% confidence interval = 1.094–1.627; p = 0.004), after to control for GCS, CT findings and age. We found a correlation between serum levels of melatonin levels and serum levels of TAC (rho = 0.37; p < 0.001) and serum levels of MDA (rho = 0.24; p = 0.008). Conclusions As to we know, our study is the largest series providing circulating melatonin levels in patients with severe TBI. The main findings were that non-survivors had higher serum melatonin levels than survivors, and the association between serum levels of melatonin levels and mortality, peroxidation state and antioxidant state.
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163
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Henry AL, Kyle SD, Chisholm A, Griffiths CEM, Bundy C. A cross-sectional survey of the nature and correlates of sleep disturbance in people with psoriasis. Br J Dermatol 2017; 177:1052-1059. [PMID: 28314054 DOI: 10.1111/bjd.15469] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND Research suggests that sleep disturbance is common in psoriasis. While several sleep investigations have been conducted in psoriasis populations, many have methodological shortcomings, and no study has examined multiple dimensions of sleep-wake functioning. Moreover, research has yet to be performed comprehensively examining the range of physical and psychological factors that may affect sleep in people with psoriasis. OBJECTIVES To characterize sleep disturbance using validated measures and to identify physical and psychological predictors of sleep quality in people with psoriasis. METHODS An online survey was conducted (186 respondents; mean age 39·2 years) comprising validated measures assessing sleep [Pittsburgh Sleep; Quality Index (PSQI), Berlin Questionnaire, Pre-Sleep Arousal Scale]; chronotype (Morningness-Eveningness Questionnaire); mood (Hospital Anxiety and Depression Scale); itch (5-D Itch Scale); and psoriasis severity (Simplified Psoriasis Index). Group comparisons and regression analyses were used to examine predictors of poor sleep. RESULTS The mean PSQI score was 9·2 ± 4·3, with 76·3% scoring above the threshold for poor sleep (≥ 6 on the PSQI) and 32·5% scoring 'positive' for probable obstructive sleep apnoea (OSA). Poor sleep and high likelihood of OSA were associated with more severe psoriasis (P < 0·05; η = 0·07; η2 = 0·005). Cognitive arousal (β = 0·26, P = 0·001), itch (β = 0·26, P < 0·001) and depression (β = 0·24, P = 0·001) were the most robust predictors of poor sleep quality, which, together with somatic arousal (β = 0·17, P = 0·022), accounted for 43% of variance in PSQI scores. CONCLUSIONS Poor sleep is common in psoriasis and associated with psychological and physical factors. Rates of probable OSA are also high. Given the importance of restorative sleep for health, sleep complaints should receive greater clinical attention in the management of psoriasis.
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Affiliation(s)
- A L Henry
- Division of Musculoskeletal and Dermatological Sciences, University of Manchester, Manchester, U.K.,Manchester Centre for Health Psychology, University of Manchester, Manchester, U.K.,Manchester Academic Health Science Centre, University of Manchester, Manchester, U.K
| | - S D Kyle
- Sleep and Circadian Neuroscience Institute, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, U.K
| | - A Chisholm
- Department of Psychological Sciences, University of Liverpool, Liverpool, U.K
| | - C E M Griffiths
- Division of Musculoskeletal and Dermatological Sciences, University of Manchester, Manchester, U.K.,Manchester Academic Health Science Centre, University of Manchester, Manchester, U.K.,Salford Royal NHS Foundation Trust, Manchester, U.K
| | - C Bundy
- Division of Musculoskeletal and Dermatological Sciences, University of Manchester, Manchester, U.K.,Manchester Centre for Health Psychology, University of Manchester, Manchester, U.K.,Manchester Academic Health Science Centre, University of Manchester, Manchester, U.K
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164
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Watad A, Azrielant S, Bragazzi NL, Sharif K, David P, Katz I, Aljadeff G, Quaresma M, Tanay G, Adawi M, Amital H, Shoenfeld Y. Seasonality and autoimmune diseases: The contribution of the four seasons to the mosaic of autoimmunity. J Autoimmun 2017. [PMID: 28624334 DOI: 10.1016/j.jaut.2017.06.001] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Autoimmune diseases (ADs) are a heterogeneous groups of diseases that occur as a results of loss of tolerance to self antigens. While the etiopathogeneis remain obscure, different environmental factors were suggested to have a role in the development of autoimmunity, including infections, low vitamin D levels, UV radiation, and melatonin. Interestingly, such factors possess seasonal variation patterns that could influence disease development, severity and progression. Vitamin D levels which reach a nadir during late winter and early spring is correlated with increased disease activity, clinical severity as well as relapse rates in several disease entities including multiple sclerosis (MS), non-cutaneous flares of systemic lupus erythematosus (SLE), psoriasis, and rheumatoid arthritis (RA). Additionally, immunomodulatory actions of melatonin secretion ameliorate the severity of several ADs including MS and SLE. Melatonin levels are lowest during spring, a finding that correlates with the highest exacerbation rates of MS. Further, melatonin is postulated to be involved in the etiopathogenesis of inflammatory bowel diseases (IBD) through it influence on adhesion molecule and therefore transcription factor expression. Moreover, infections can mount to ADs through pro-inflammatory cytokine release and human antigen mimicry. Seasonal patterns of infectious diseases are correlated with the onset and exacerbation of ADs. During the winter, increased incidence of Epstein-Barr virus (EBV) infectious are associated with MS and SLE flares/onset respectively. In addition, higher Rotavirus infections during the winter precedes type 1 diabetes mellitus onset (T1DM). Moreover, Escherichia coli (E. coli) infection prior to primary biliary cirrhosis (PBC) and T1DM disease onset subsequent to Coxachievirus infections are seen to occur during late summer, a finding that correlate with infectious agents' pattern of seasonality. In this review, the effects of seasonality on the onset, relapses and activity of various ADs were discussed. Consideration of seasonal variation patterns of ADs can possibly provide clues to diseases pathogenesis and lead to development of new approaches in treatment and preventative care.
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Affiliation(s)
- Abdulla Watad
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Shir Azrielant
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Nicola Luigi Bragazzi
- Postgraduate School of Public Health, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Kassem Sharif
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Paula David
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Itay Katz
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Gali Aljadeff
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Mariana Quaresma
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Galya Tanay
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Mohammad Adawi
- Baruch Padeh and Ziv hospitals, Bar-Ilan, Faculty of Medicine, Zefat, Israel
| | - Howard Amital
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Incumbent of the Laura Schwarz-Kipp Chair for Research of Autoimmune Diseases, Tel-Aviv University, Israel.
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Man GCW, Zhang T, Chen X, Wang J, Wu F, Liu Y, Wang CC, Cheong Y, Li TC. The regulations and role of circadian clock and melatonin in uterine receptivity and pregnancy-An immunological perspective. Am J Reprod Immunol 2017; 78. [DOI: 10.1111/aji.12715] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/04/2017] [Indexed: 12/22/2022] Open
Affiliation(s)
- Gene Chi Wai Man
- Department of Orthopaedics and Traumatology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Tao Zhang
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation; Fertility Center; Shenzhen Zhongshan Urology Hospital; Shenzhen China
| | - Xiaoyan Chen
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Jianzhang Wang
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Fangrong Wu
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Yingyu Liu
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
- Li Ka Shing Institute of Health Sciences; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
- School of Biomedical Sciences; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
| | - Ying Cheong
- Human Development and Health; Princess Anne Hospital; University of Southampton Faculty of Medicine; Southampton UK
| | - Tin Chiu Li
- Department of Obstetrics and Gynaecology; Faculty of Medicine; The Prince of Wales Hospital; The Chinese University of Hong Kong; Shatin Hong Kong SAR
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Manipulating cognitive reserve: Pre-injury environmental conditions influence the severity of concussion symptomology, gene expression, and response to melatonin treatment in rats. Exp Neurol 2017; 295:55-65. [PMID: 28579327 DOI: 10.1016/j.expneurol.2017.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/21/2017] [Accepted: 06/01/2017] [Indexed: 11/22/2022]
Abstract
In an effort to understand the factors that contribute to heterogeneity in outcomes often associated with mTBI in youth, this study examined the role of premorbid differences in cognitive reserve on post-concussive symptoms (PCS), molecular markers, and treatment response. Male and female rats matured in one of three environmental conditions (Stress, Enrichment, Control), received a mTBI in adolescence, and were randomized to melatonin or placebo treatment. All animals underwent a behavioural test battery designed to examine PCS. Using prefrontal cortex and hippocampus tissue, expression of 9 genes was assessed in an effort to determine how the brain's epigenome was influenced by cognitive reserve, mTBI, and melatonin. Enrichment increased cognitive reserve (CR) and prevented lingering symptoms. Conversely, stress was associated with progressive worsening and manifestation of PCS in the longer-term. Melatonin was able to restore baseline function for control and enriched animals, but was ineffective for the stress condition. Epigenetic change in the prefrontal cortex was largely driven by the injury, while gene expression changes in the hippocampus were dependent upon cognitive reserve. The occurrence and severity of PCS is dependent upon a complex and multifaceted array of factors that modify behavioural and epigenetic responses to mTBI and its treatment.
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The anti-inflammatory effect of melatonin in SH-SY5Y neuroblastoma cells exposed to sublethal dose of hydrogen peroxide. Mech Ageing Dev 2017; 164:49-60. [DOI: 10.1016/j.mad.2017.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 01/28/2023]
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168
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Rocha AKADA, de Lima E, Amaral F, Peres R, Cipolla-Neto J, Amado D. Altered MT1 and MT2 melatonin receptors expression in the hippocampus of pilocarpine-induced epileptic rats. Epilepsy Behav 2017; 71:23-34. [PMID: 28460319 DOI: 10.1016/j.yebeh.2017.01.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 01/20/2017] [Accepted: 01/20/2017] [Indexed: 12/11/2022]
Abstract
Clinical and experimental findings show that melatonin may be used as an adjuvant to the treatment of epilepsy-related complications by alleviates sleep disturbances, circadian alterations and attenuates seizures alone or in combination with AEDs. In addition, it has been observed that there is a circadian component on seizures, which cause changes in circadian system and in melatonin production. Nevertheless, the dynamic changes of the melatoninergic system, especially with regard to its membrane receptors (MT1 and MT2) in the natural course of TLE remain largely unknown. The aim of this study was to evaluate the 24-hour profile of MT1 and MT2 mRNA and protein expression in the hippocampus of rats submitted to the pilocarpine-induced epilepsy model analyzing the influence of the circadian rhythm in the expression pattern during the acute, silent, and chronic phases. Melatonin receptor MT1 and MT2 mRNA expression levels were increased in the hippocampus of rats few hours after SE, with MT1 returning to normal levels and MT2 reducing during the silent phase. During the chronic phase, mRNA expression levels of both receptors return to levels close to control, however, presenting a different daily profile, showing that there is a circadian change during the chronic phase. Also, during the acute and silent phase it was possible to verify MT1 label only in CA2 hippocampal region with an increased expression only in the dark period of the acute phase. The MT2 receptor was present in all hippocampal regions, however, it was reduced in the acute phase and it was found in astrocytes. In chronic animals, there is a reduction in the presence of both receptors especially in regions where there is a typical damage derived from epilepsy. Therefore, we conclude that SE induced by pilocarpine is able to change melatonin receptor MT1 and MT2 protein and mRNA expression levels in the hippocampus of rats few hours after SE as well as in silent and chronic phases.
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Affiliation(s)
| | - Eliangela de Lima
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Department of Physiology and Biophysics, Institute of Biomedical Science, Universidade de São Paulo, São Paulo, SP, Brazil; Department of Physiology, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Fernanda Amaral
- Department of Physiology and Biophysics, Institute of Biomedical Science, Universidade de São Paulo, São Paulo, SP, Brazil; Departament of Physiology, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Rafael Peres
- Department of Physiology and Biophysics, Institute of Biomedical Science, Universidade de São Paulo, São Paulo, SP, Brazil
| | - José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Science, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Débora Amado
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
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169
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Modeled traffic noise at the residence and colorectal cancer incidence: a cohort study. Cancer Causes Control 2017; 28:745-753. [PMID: 28516298 DOI: 10.1007/s10552-017-0904-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 05/05/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE Traffic noise has become an increasing public health concern, associated with pervasive negative health effects, most likely through pathways of sleep disruption and stress. Both sleep disruption and stress have been associated with colorectal cancer. The purpose of this study was to investigate the association between residential traffic noise and colorectal cancer incidence. METHODS Traffic noise was calculated for all residential addresses from 1987 to 2012 for 51,283 Danes in the Diet, Cancer and Health Cohort. We used Cox proportional hazard models to investigate the association between residential traffic noise 5 and 10 years before diagnosis, and overall colorectal cancer incidence, as well as subtypes (rectal, proximal, and distal colon). Hazard ratios (HRs) were calculated as crude and adjusted for potential confounders. RESULTS During follow-up, 1,134 colorectal cancers developed (737 colon, 397 rectal). We found no association between residential road traffic noise and rectal cancer. We observed an association with distal colon cancer: HR 1.18, 95% CI 1.00-1.40, but not for proximal colon cancer: 0.99 (0.83-1.18), per 10 dB, 10 years preceding diagnosis. There was no association between railway noise and colorectal cancer, or any subtype. CONCLUSION The present study suggested that long-term exposure to residential road traffic noise might increase the risk for colon cancer, especially distal colon cancer.
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170
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Rateb EE, Amin SN, El-Tablawy N, Rashed LA, El-Attar S. Effect of melatonin supplemented at the light or dark period on recovery of sciatic nerve injury in rats. EXCLI JOURNAL 2017; 16:138-150. [PMID: 28435433 PMCID: PMC5379119 DOI: 10.17179/excli2016-763] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/03/2017] [Indexed: 01/07/2023]
Abstract
Peripheral nerve injuries can cause disabilities, social or economic problems. Melatonin, the secretory product of the pineal gland has antioxidant and anti-inflammatory actions. The aim of the present study was to investigate the effect of melatonin on the recovery of sciatic nerve after injury, comparing its effect when given in the light or the dark periods. Forty adult male Albino rats were allocated into four groups: control, nerve injury, nerve injury + melatonin given at light and nerve injury + melatonin given at dark. Nerve injury was initiated by clamping the sciatic nerve. Sciatic functional index (SFI) was measured preoperatively and postoperatively. Melatonin was given daily for six weeks. Recovery of the function was analyzed by functional analysis, electrophysiological analysis and biochemical measurement of Superoxide dismutase (SOD), Interleukin 1-beta (IL-1 β), Nerve growth factor (NGF), and bcl-2. Melatonin improved SFI, nerve conduction velocity (NCV) and the force of gastrocnemius muscle contraction as compared to the untreated rats. SOD activity, NGF, and bcl-2 were significantly increased, while IL-1β was significantly decreased after melatonin treatment as compared to the untreated injury group. SFI reached the control level; muscle contraction and IL-1B were significantly improved in the group treated with melatonin in the dark. Melatonin fastened the neural recovery and may be used in the treatment of nerve injury and it induced better nerve regeneration when the rats were treated during the dark period.
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Affiliation(s)
| | - Shaimaa Nasr Amin
- Department of Physiology, Kasr Al Ainy Faculty of Medicine, Cairo University, Egypt
| | - Nashwa El-Tablawy
- Department of Physiology, Kasr Al Ainy Faculty of Medicine, Cairo University, Egypt
| | - Laila Ahmed Rashed
- Department of Biochemistry, Kasr Al Ainy Faculty of Medicine, Cairo University, Egypt
| | - Samah El-Attar
- Department of Physiology, Kasr Al Ainy Faculty of Medicine, Cairo University, Egypt
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171
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Sułkowska-Ziaja K, Maślanka A, Szewczyk A, Muszyńska B. Physiologically Active Compounds in Four Species of Phellinus. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200313] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The content of two groups of compounds with biological activity (non-hallucinogenic indole compounds and free phenolic acids) were analyzed in extracts of fruiting bodies of four species of Phellinus: P. igniarius, P. pini, P. pomaceus and P. robustus. The presence of indole compounds in methanolic extracts was analyzed by high-performance liquid chromatography and thin-layer chromatography coupled with densitometric detection. Three metabolites (serotonin, tryptamine, and L-tryptophan) were identified. The contents of individual indole compounds ranged from 1.70 (tryptamine in P. robustus) to 8.32 mg x 100 g1 dry weight (L-tryptophan in P. robustus). Four free phenolic acids were detected in methanolic extracts by the HPLC method. The total content ranged from 9.9 mg x 100 g1 DW (P. igniarius) to 32.5 mg x 100 g1 DW (P. robustus).
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Affiliation(s)
- Katarzyna Sułkowska-Ziaja
- Department of Pharmaceutical Botany, Jagiellonian University Medical College, Medyczna 9, 30–688 Kraków, Poland
| | - Anna Maślanka
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30–688 Kraków, Poland
| | - Agnieszka Szewczyk
- Department of Pharmaceutical Botany, Jagiellonian University Medical College, Medyczna 9, 30–688 Kraków, Poland
| | - Bożena Muszyńska
- Department of Pharmaceutical Botany, Jagiellonian University Medical College, Medyczna 9, 30–688 Kraków, Poland
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Jumnongprakhon P, Sivasinprasasn S, Govitrapong P, Tocharus C, Tocharus J. Activation of melatonin receptor (MT1/2) promotes P-gp transporter in methamphetamine-induced toxicity on primary rat brain microvascular endothelial cells. Toxicol In Vitro 2017; 41:42-48. [PMID: 28223141 DOI: 10.1016/j.tiv.2017.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 12/08/2016] [Accepted: 02/17/2017] [Indexed: 11/17/2022]
Abstract
Melatonin has been known as a neuroprotective agent for the central nervous system (CNS) and the blood-brain barrier (BBB), which is the primary structure that comes into contact with several neurotoxins including methamphetamine (METH). Previous studies have reported that the activation of melatonin receptors (MT1/2) by melatonin could protect against METH-induced toxicity in brain endothelial cells via several mechanisms. However, its effects on the P-glycoprotein (P-gp) transporter, the active efflux pump involved in cell homeostasis, are still unclear. Thus, this study investigated the role of melatonin and its receptors on the METH-impaired P-gp transporter in primary rat brain microvascular endothelial cells (BMVECs). The results showed that METH impaired the function of the P-gp transporter, significantly decreasing the efflux of Rho123 and P-gp expression, which caused a significant increase in the intracellular accumulation of Rho123, and these responses were reversed by the interaction of melatonin with its receptors. Blockade of the P-gp transporter by verapamil caused oxidative stress, apoptosis, and cell integrity impairment after METH treatment, and these effects could be reversed by melatonin. Our results, together with previous findings, suggest that the interaction of melatonin with its receptors protects against the effects of the METH-impaired P-gp transporter and that the protective role in METH-induced toxicity was at least partially mediated by the regulation of the P-gp transporter. Thus, melatonin and its receptors (MT1/2) are essential for protecting against BBB impairment caused by METH.
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Affiliation(s)
- Pichaya Jumnongprakhon
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sivanan Sivasinprasasn
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand; Center for Neuroscience, Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand; Chulabhorn Graduate Institute, Kamphaeng Phet 6 Road, Lak Si, Bangkok 10210, Thailand
| | - Chainarong Tocharus
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraporn Tocharus
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
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Melatonin Alleviates the Epilepsy-Associated Impairments in Hippocampal LTP and Spatial Learning Through Rescue of Surface GluR2 Expression at Hippocampal CA1 Synapses. Neurochem Res 2017; 42:1438-1448. [PMID: 28214985 DOI: 10.1007/s11064-017-2200-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/20/2017] [Accepted: 02/02/2017] [Indexed: 12/23/2022]
Abstract
Epilepsy-associated cognitive impairment is common, and negatively impacts patients' quality of life. However, most antiepileptic drugs focus on the suppression of seizures, and fewer emphasize treatment of cognitive dysfunction. Melatonin, an indolamine synthesized primarily in the pineal grand, is reported to be neuroprotective against several central nervous system disorders. In this study, we investigated whether melatonin could reverse cognitive dysfunction in lithium-pilocarpine treated rats. Chronic treatment with melatonin (8 mg/kg daily for 15 days) after induction of status epilepticus significantly alleviated seizure severity, reduced neuronal death in the CA1 region of the hippocampus, improved spatial learning (as measured by the Morris water maze test), and reversed LTP impairments, compared to vehicle treatment. Furthermore, we found that melatonin rescued the decreased surface levels of GluR2 in the CA1 region observed in epilepsy, which might be the underlying mechanism of the neuroprotective and synapse-modulating function of melatonin. Our study provides experimental evidence for the possible clinical utility of melatonin as an adjunctive therapy to prevent epilepsy-associated cognitive impairments.
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174
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Wu H, Song C, Zhang J, Zhao J, Fu B, Mao T, Zhang Y. Melatonin-mediated upregulation of GLUT1 blocks exit from pluripotency by increasing the uptake of oxidized vitamin C in mouse embryonic stem cells. FASEB J 2017; 31:1731-1743. [PMID: 28069827 DOI: 10.1096/fj.201601085r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/03/2017] [Indexed: 12/21/2022]
Abstract
Melatonin and vitamin C are powerful antioxidants that improve the reprogramming efficiency of induced pluripotent stem cells (iPSCs). However, the effects of the combined treatment of vitamin C and melatonin on the differentiation of embryonic stem cells (ESCs) have not yet been examined. In this study, we showed that melatonin synergizes with vitamin C to derail exit from pluripotency of mouse ESCs. This effect is related to the increased uptake of dehydroascorbate, the oxidized form of vitamin C, through glucose transporter 1 (Glut1) transporter, which in turn, is upregulated by melatonin treatment. Analysis of the cell signaling pathway profiling systems and specific pathway inhibition indicated that melatonin enhances Glut1 expression by activating the PI3K/AKT and MAPK/ERK signaling pathways. Our findings provide a theoretical basis for application of melatonin in research on ESCs and iPSCs and for further investigation of the effect of combinatorial compounds on cell reprogramming.-Wu, H., Song, C., Zhang, J., Zhao, J., Fu, B., Mao, T., Zhang, Y. Melatonin-mediated upregulation of GLUT1 blocks exit from pluripotency by increasing the uptake of oxidized vitamin C in mouse embryonic stem cells.
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Affiliation(s)
- Haibo Wu
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and .,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Chao Song
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Jingcheng Zhang
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Jiamin Zhao
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and .,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Beibei Fu
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Tingchao Mao
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest Agriculture and Forestry (A&F) University, Yangling, China; and .,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
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175
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Lin C, Chao H, Li Z, Xu X, Liu Y, Bao Z, Hou L, Liu Y, Wang X, You Y, Liu N, Ji J. Omega-3 fatty acids regulate NLRP3 inflammasome activation and prevent behavior deficits after traumatic brain injury. Exp Neurol 2017; 290:115-122. [PMID: 28077335 DOI: 10.1016/j.expneurol.2017.01.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 01/03/2017] [Accepted: 01/06/2017] [Indexed: 02/05/2023]
Abstract
Omega-3 fatty acids (ω-3 FAs) attenuate inflammation and improve neurological outcome in response to traumatic brain injury (TBI), but the specific anti-inflammatory mechanisms remain to be elucidated. Here we found that NLRP3 inflammasome and subsequent pro-inflammatory cytokines were activated in human brains after TBI. Rats treated with ω-3 FAs had significantly less TBI-induced caspase-1 cleavage and IL-1β secretion than those with vehicle. G protein-coupled receptor 40 (GPR40) was observed to be involved in this anti-inflammation. GW1100, a GPR40 inhibitor, eliminated the anti-inflammatory effect of ω-3 FAs after TBI. β-Arrestin-2 (ARRB2), a downstream scaffold protein of GPR40, was activated to inhibit inflammation via directly binding with NLRP3 in the ω-3 FAs treatment group. Interestingly, we also observed that ω-3 FAs prevented NLRP3 mitochondrial localization, which was reversed by GW1100. Furthermore, ω-3 FAs markedly ameliorated neuronal death and behavioral deficits after TBI, while GW1100 significantly suppressed this effect. Collectively, these data indicate that the GPR40-mediated pathway is involved in the inhibitory effects of ω-3 FAs on TBI-induced inflammation and ARRB2 is activated to interact with NLRP3.
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Affiliation(s)
- Chao Lin
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Honglu Chao
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Zheng Li
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Xiupeng Xu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Yinlong Liu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Zhongyuan Bao
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Lijun Hou
- Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, China
| | - Yan Liu
- Institute for Stem Cell and Neural Regeneration, School of Pharmacy, Nanjing Medical University, China
| | - Xiaoming Wang
- Department of Immunology, Nanjing Medical University, China
| | - Yongping You
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China
| | - Ning Liu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China.
| | - Jing Ji
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, China.
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176
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Muszyńska B, Łojewski M, Sułkowska-Ziaja K, Szewczyk A, Gdula-Argasińska J, Hałaszuk P. In vitro cultures of Bacopa monnieri and an analysis of selected groups of biologically active metabolites in their biomass. PHARMACEUTICAL BIOLOGY 2016; 54:2443-2453. [PMID: 27046025 DOI: 10.3109/13880209.2016.1158843] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Bacopa monnieri L. Pennell (Scrophulariaceae) is one of the most important plants in the system of Indian medicine (Ayurveda). OBJECTIVE This paper studies the optimal growth of B. monnieri for effective accumulation of metabolites. Biomass growth of this plant could be accomplished in liquid cultures on Murashige & Skoog medium. MATERIALS AND METHODS Powdered shoots of in vitro cultures of B. monnieri were extracted by methanol for indole compounds, phenolic compounds and bacosides for RP-HPLC analysis. Fatty acid analysis was performed via gas chromatography. Anti-inflammatory effect of B. monnieri extracts was evaluated in the A549 cells. COX-2 and cPGES expression was analyzed using Western blots. RESULTS l-Tryptophan and serotonin were found in biomass from in vitro cultures of B. monnieri on MS medium and in biomass from the MS mediums enriched with the different additions such as of 0.1 g/L magnesium sulphate, 0.1 g/L zinc hydroaspartate, 0.1 g/L l-tryptophan, 0.25 g/L serine, 0.5 g/L serine and 0.5 mg/L anthranilic acid. The content of l-tryptophan and serotonin compounds was significant in biomass from medium with the addition of 0.1 g/L zinc hydroaspartate (0.72 mg/g dry weight and 1.19, respectively). Phenolic compounds identified in biomass from the same variants of MS medium were chlorogenic acid (ranging from 0.20 to 0.70 mg/g dry weight), neochlorogenic acid (ranging from 0.11 to 0.40 mg/g dry weight) and caffeic acid (ranging from 0.01 to 0.04 mg/g dry weight). The main group of fatty acids in biomass was saturated fatty acids (53.4%). The predominant fatty acid was palmitic acid. A significant decrease of COX-2 and cPGES expression was observed in the A549 cells activated with LPS and treated with B. monnieri extracts. DISCUSSION AND CONCLUSIONS As far as we know, this is the first analysis of indole compounds and phenolic acids in this plant. The multi-therapeutic effect of B. monnieri is expressed by the activity of bacosides. Information about the presence of indole and phenolic compounds, and fatty acids in this plant is limited, but the content of these compounds might participate in the physiological activity of B. monnieri.
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Affiliation(s)
- Bożena Muszyńska
- a Department of Pharmaceutical Botany , Jagiellonian University Collegium Medicum , Kraków , Poland
| | - Maciej Łojewski
- a Department of Pharmaceutical Botany , Jagiellonian University Collegium Medicum , Kraków , Poland
| | | | - Agnieszka Szewczyk
- a Department of Pharmaceutical Botany , Jagiellonian University Collegium Medicum , Kraków , Poland
| | | | - Patrycja Hałaszuk
- a Department of Pharmaceutical Botany , Jagiellonian University Collegium Medicum , Kraków , Poland
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177
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Abstract
Depression and fatigue are common after stroke and negatively impact the quality of life of stroke survivors. The biological bases of these symptoms are unknown, but an abundance of data point to a role for inflammation. This review highlights evidence supporting the contribution of inflammation to poststroke depression and poststroke fatigue. Potential treatments for poststroke depression and poststroke fatigue are explored, with a special emphasis on those that modulate the immune response.
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Affiliation(s)
- Kyra J Becker
- University of Washington School of Medicine, Seattle, WA, USA.
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178
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Shi S, Zhang Y, Wen W, Zhao Y, Sun L. Molecular mechanisms of melatonin in the reversal of LPS-induced EMT in peritoneal mesothelial cells. Mol Med Rep 2016; 14:4342-4348. [DOI: 10.3892/mmr.2016.5744] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 07/28/2016] [Indexed: 11/06/2022] Open
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180
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Lin C, Chao H, Li Z, Xu X, Liu Y, Hou L, Liu N, Ji J. Melatonin attenuates traumatic brain injury-induced inflammation: a possible role for mitophagy. J Pineal Res 2016; 61:177-86. [PMID: 27117839 DOI: 10.1111/jpi.12337] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/21/2016] [Indexed: 12/16/2022]
Abstract
Melatonin functions as a crucial mediator of sterile neuroinflammation; however, the underlying mechanisms remain poorly understood. Dysfunctional mitochondria, a main source of reactive oxygen species, are impacted in inflammation activation. This study aimed to examine the effect of melatonin on inflammation via elimination of damaged mitochondria after controlled cortical impact, an in vivo model of traumatic brain injury (TBI). Here, we demonstrated that inhibition of mitophagy, the selective degradation of damaged mitochondria by autophagy, markedly enhanced inflammation induced by TBI. Melatonin treatment activated mitophagy through the mTOR pathway, then to attenuate TBI-induced inflammation. Furthermore, treatment with melatonin significantly ameliorated neuronal death and behavioral deficits after TBI, while 3-methyladenine reversed this effect by inhibiting mitophagy. Taken together, these results highlight a role for melatonin in protecting against TBI-triggered immunopathology, which is accomplished by negatively regulating inflammation activation and IL-1β secretion via the autophagy of damaged mitochondria.
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Affiliation(s)
- Chao Lin
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Honglu Chao
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zheng Li
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiupeng Xu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yinlong Liu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lijun Hou
- Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ning Liu
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jing Ji
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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181
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Wen J, Ariyannur PS, Ribeiro R, Tanaka M, Moffett JR, Kirmani BF, Namboodiri AMA, Zhang Y. Efficacy of N-Acetylserotonin and Melatonin in the EAE Model of Multiple Sclerosis. J Neuroimmune Pharmacol 2016; 11:763-773. [PMID: 27562847 DOI: 10.1007/s11481-016-9702-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/15/2016] [Indexed: 12/16/2022]
Abstract
Melatonin and N-acetylserotonin (NAS) are tryptophan metabolites that have potent anti-oxidant, anti-inflammatory and neuroprotective properties in several animal models of neurological injury and disease including multiple sclerosis (MS). The therapeutic effect of NAS has not been reported previously in experimental autoimmune encephalomyelitis (EAE), a commonly used animal model of MS. Using a MOG-peptide induced EAE mouse model we examined the effects of melatonin and NAS on clinical score, inflammatory markers, free radical generation, and sparing of axons, oligodendrocytes and myelin. We found that NAS and melatonin reduced clinical scores when administered prior to or after symptom onset. This effect was more pronounced when melatonin and NAS were administrated prior to symptom onset whereby the appearance of motor symptoms was significantly delayed. Activated microglia and CD4+ T-cells were increased in the white matter of untreated EAE mice, with a return to near control levels after melatonin or NAS treatment. The expression of the NADPH oxidase component p67phox and inducible nitric oxide synthase (iNOS) was increased in the EAE mice as compared with controls, and both drug treated groups had significant reductions in their expression. Melatonin and NAS treatment significantly reduced the loss of mature oligodendrocytes, demyelination and axonal injury. Both compounds also significantly attenuated iNOS induction and reactive oxygen species (ROS) generation in lipopolysaccharide-activated microglia in culture. Our results show for the first time the therapeutic effects of NAS and confirm previous reports on the effectiveness of melatonin in the EAE model of MS.
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Affiliation(s)
- Jie Wen
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Prasanth S Ariyannur
- Molecular Diagnostics Div., Department of Medical Oncology, Amrita Institute of Medical Sciences, Amrita University, Kochi, India
| | - Rachel Ribeiro
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Mikiei Tanaka
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - John R Moffett
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Batool F Kirmani
- Epilepsy Center, Department of Neurology, Scott and White Hospital, Texas A&M University, Temple, TX, USA
| | - Aryan M A Namboodiri
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA.
| | - Yumin Zhang
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA.
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182
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Tohid H, Aleem D, Jackson C. Major Depression and Psoriasis: A Psychodermatological Phenomenon. Skin Pharmacol Physiol 2016; 29:220-30. [DOI: 10.1159/000448122] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/29/2016] [Indexed: 11/19/2022]
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183
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Lee SE, Lim C, Kim H, Cho S. A STUDY OF THE ANTI-INFLAMMATORY EFFECTS OF THE ETHYL ACETATE FRACTION OF THE METHANOL EXTRACT OF FORSYTHIAE FRUCTUS. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES : AJTCAM 2016; 13:102-113. [PMID: 28487900 PMCID: PMC5416628 DOI: 10.21010/ajtcam.v13i5.14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND The dried fruit of Forsythia suspensa (Thunb.) Vahl. (Oleaceae) are better known by their herbal name Forsythiae Fructus, and have a bitter taste, slightly pungent smell, and cold habit. FF has been widely used to treat symptoms associated with the lung, heart, and small intestine. Recently, bioactive compounds isolated from hydrophobic solvent fractions of FF have been reported to have anti-oxidant, anti-bacterial, and anti-cancer effects. Traditionally, almost all herbal medicines are water extracts, and thus, extraction methods should be developed to optimize the practical efficacies of herbal medicines. MATERIALS AND METHODS In this study, the anti-inflammatory effects of the ethyl acetate fraction of the methanol extract of FF (FFE) were assessed by measuring NO and PGE2 production by and intracellular ROS and protein levels of iNOS and COX-2 in RAW 264.7 cells. RESULTS FFE inhibited COX-2 expression in LPS-stimulated RAW 264.7 cells. CONCLUSION In summary, FFE effectively reduced intracellular ROS and NO levels and inhibited PGE2 production by down-regulating COX-2 levels. Abbreviations: FF, of Forsythiae Fructus; NO, nitric oxide; iNOS, inducible NO synthase; COX-2, cyclooxygenase-2; ROS, reactive oxygen species; PGE2, prostaglandin E2.
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Affiliation(s)
- Se-Eun Lee
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Chiyeon Lim
- College of Medicine, Dongguk University, Ilsan, Gyounggi-do, Republic of Korea
| | - Hyungwoo Kim
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Suin Cho
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea
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184
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Opie LH, Lecour S. Melatonin has multiorgan effects. EUROPEAN HEART JOURNAL. CARDIOVASCULAR PHARMACOTHERAPY 2016; 2:258-65. [DOI: 10.1093/ehjcvp/pvv037] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 09/15/2015] [Indexed: 01/04/2023]
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185
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Shah SA, Khan M, Jo MH, Jo MG, Amin FU, Kim MO. Melatonin Stimulates the SIRT1/Nrf2 Signaling Pathway Counteracting Lipopolysaccharide (LPS)-Induced Oxidative Stress to Rescue Postnatal Rat Brain. CNS Neurosci Ther 2016; 23:33-44. [PMID: 27421686 DOI: 10.1111/cns.12588] [Citation(s) in RCA: 179] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/13/2016] [Accepted: 06/14/2016] [Indexed: 12/12/2022] Open
Abstract
AIMS Lipopolysaccharide (LPS) induces oxidative stress and neuroinflammation both in vivo and in vitro. Here, we provided the first detailed description of the mechanism of melatonin neuroprotection against LPS-induced oxidative stress, acute neuroinflammation, and neurodegeneration in the hippocampal dentate gyrus (DG) region of the postnatal day 7 (PND7) rat brain. METHODS The neuroprotective effects of melatonin against LPS-induced neurotoxicity were analyzed using multiple research techniques, including Western blotting, immunofluorescence, and enzyme-linked immunosorbent assays (ELISAs) in PND7 rat brain homogenates and BV2 cell lysates in vitro. We also used EX527 to inhibit silent information regulator transcript-1 (SIRT1). RESULTS A single intraperitoneal (i.p) injection of LPS to PND7 rats significantly induced glial cell activation, acute neuroinflammation, reactive oxygen species (ROS) production and apoptotic neurodegeneration in hippocampal DG region after 4 h. However, the coadministration of melatonin significantly inhibited both LPS-induced acute neuroinflammation and apoptotic neurodegeneration and improved synaptic dysfunction in the hippocampal DG region of PND7 rats. Most importantly, melatonin stimulated the SIRT1/Nrf2 (nuclear factor-erythroid 2-related factor 2) signaling pathway to reduce LPS-induced ROS generation. The beneficial effects of melatonin were further confirmed in LPS-stimulated BV2 microglia cell lines in vitro using EX527 as an inhibitor of SIRT1. LPS-induced oxidative stress, Nrf2 inhibition, and neuroinflammation are SIRT1-dependent in BV2 microglia cell lines. CONCLUSION These results demonstrated that melatonin treatment rescued the hippocampal DG region of PND7 rat brains against LPS-induced oxidative stress damage, acute neuroinflammation, and apoptotic neurodegeneration via SIRT1/Nrf2 signaling pathway activation.
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Affiliation(s)
- Shahid Ali Shah
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Mehtab Khan
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Myeung-Hoon Jo
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Min Gi Jo
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Faiz Ul Amin
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Myeong Ok Kim
- Department of Biology and Applied Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
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186
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Fu J, Shi Q, Song X, Liu Z, Wang Y, Wang Y, Song E, Song Y. From the Cover: Tetrachlorobenzoquinone Exerts Neurological Proinflammatory Activity by Promoting HMGB1 Release, Which Induces TLR4 Clustering within the Lipid Raft. Toxicol Sci 2016; 153:303-15. [DOI: 10.1093/toxsci/kfw124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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187
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Gustavsen S, Søndergaard HB, Oturai DB, Laursen B, Laursen JH, Magyari M, Ullum H, Larsen MH, Sellebjerg F, Oturai AB. Shift work at young age is associated with increased risk of multiple sclerosis in a Danish population. Mult Scler Relat Disord 2016; 9:104-9. [PMID: 27645354 DOI: 10.1016/j.msard.2016.06.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/30/2016] [Accepted: 06/25/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Epidemiological studies suggest an important role for environmental factors in developing multiple sclerosis (MS). Furthermore several studies have indicated that the effect of environmental factors may be especially pronounced in adolescents. Recently only one study investigated and found that shift work at young age is associated with an increased risk of developing MS. In this study we focused on the effect of shift work in the vulnerable period between 15-19 years. OBJECTIVE The aim of this study was to investigate the association between shift work at young age and the risk of developing MS. METHODS We performed a large case-control study including 1723 patients diagnosed with MS and 4067 controls. MS patients were recruited from the Danish Multiple Sclerosis Biobank and controls from The Danish Blood Donor Study. Information on working patterns and lifestyle factors was obtained using a comprehensive lifestyle-environmental factor questionnaire with participants enrolled between 2009 and 2014. Logistic regression models were used to investigate the association between shift work at age 15-19 years and the subsequent risk of MS and were controlled for effects due to established MS risk factors. RESULTS We found a statistically significant association when total numbers of night shifts were compared with non-shift workers. For every additional 100 night shifts the odds ratio (OR) for MS was 1.20 (95% confidence interval (CI), 1.08-1.34, p=0.001). Increasing intensity of shift work also increased MS risk. For every additional night per month the OR was 1.04 (95% CI, 1.01-1.06, p=0.002). Duration of shift work in years was not associated with risk of MS. CONCLUSION This study supports a statistically significant association between shift work at age 15-19 years and MS risk.
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Affiliation(s)
- S Gustavsen
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark.
| | - H B Søndergaard
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - D B Oturai
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - B Laursen
- The National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - J H Laursen
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - M Magyari
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark; The Danish Multiple Sclerosis Registry, Department of Neurology, Rigshospitalet, Copenhagen, Denmark
| | - H Ullum
- Department of Clinical Immunology, Center of Clinical Investigation, Copenhagen University Hospital, Denmark
| | - M H Larsen
- Department of Clinical Immunology, Center of Clinical Investigation, Copenhagen University Hospital, Denmark
| | - F Sellebjerg
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - A B Oturai
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Denmark
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188
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Wang J, Cheng X, Zhang X, Cheng J, Xu Y, Zeng J, Zhou W, Zhang Y. The anti-aging effects of LW-AFC via correcting immune dysfunctions in senescence accelerated mouse resistant 1 (SAMR1) strain. Oncotarget 2016; 7:26949-65. [PMID: 27105505 PMCID: PMC5053624 DOI: 10.18632/oncotarget.8877] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 04/03/2016] [Indexed: 12/18/2022] Open
Abstract
Although there were considerable advances in the anti-aging medical field, it is short of therapeutic drug for anti-aging. Mounting evidence indicates that the immunosenescence is the key physiopathological mechanism of aging. This study showed the treatment of LW-AFC, an herbal medicine, decreased the grading score of senescence, increased weight, prolonged average life span and ameliorated spatial memory impairment in 12- and 24-month-old senescence accelerated mouse resistant 1 (SAMR1) strain. And these anti-aging effects of LW-AFC were more excellent than melatonin. The administration of LW-AFC enhanced ConA- and LPS-induced splenocyte proliferation in aged SAMR1 mice. The treatment of LW-AFC not only reversed the decreased the proportions of helper T cells, suppressor T cells and B cells, the increased regulatory T cells in the peripheral blood of old SAMR1 mice, but also could modulate the abnormal secretion of IL-1β, IL-2, IL-6, IL-17, IL-23, GM-CSF, IFN-γ, TNF-α, TNF-β, RANTES, eotaxin, MCP-1, IL-4, IL-5, IL-10 and G-CSF. These data indicated that LW-AFC reversed the immunosenescence status by restoring immunodeficiency and decreasing chronic inflammation and suggested LW-AFC may be an effective anti-aging agent.
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Affiliation(s)
- Jianhui Wang
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Xiaorui Cheng
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Xiaorui Zhang
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Junping Cheng
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Yiran Xu
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Ju Zeng
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Wenxia Zhou
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Yongxiang Zhang
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
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189
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Paterniti I, Cordaro M, Esposito E, Cuzzocrea S. The antioxidative property of melatonin against brain ischemia. Expert Rev Neurother 2016; 16:841-8. [PMID: 27108742 DOI: 10.1080/14737175.2016.1182020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION This review briefly summarizes some of the large amount of data documenting the ability of melatonin to limit molecular and organ tissue damage in neural ischemia-reperfusion injury (stroke), where free radicals are generally considered as being responsible for much of the resulting tissue destruction. AREA COVERED Melatonin actions that have been identified include its ability to directly neutralize a number of toxic reactants and stimulate antioxidative enzymes. Furthermore, several of its metabolites such as N(1)-acetyl-N(2)-formyl-5- methoxykynuramine (AFMK) and N(1)-acetyl-5-methoxykynuramine (AMF), are themselves scavengers suggesting that there is a cascade of reactions that greatly increase the efficacy of melatonin. Expert Commentary: However, the mechanisms by which melatonin is protective in such widely diverse areas of the cell and different organs are likely not yet all identified.
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Affiliation(s)
- Irene Paterniti
- a Department of Biological and Environmental Sciences , University of Messina , Messina , Italy
| | - Marika Cordaro
- a Department of Biological and Environmental Sciences , University of Messina , Messina , Italy
| | - Emanuela Esposito
- a Department of Biological and Environmental Sciences , University of Messina , Messina , Italy
| | - Salvatore Cuzzocrea
- a Department of Biological and Environmental Sciences , University of Messina , Messina , Italy.,b Department of Pharmacological and Physiological Science , Saint Louis University School of Medicine , St. Louis , MO , USA
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190
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Aranda ML, González Fleitas MF, De Laurentiis A, Keller Sarmiento MI, Chianelli M, Sande PH, Dorfman D, Rosenstein RE. Neuroprotective effect of melatonin in experimental optic neuritis in rats. J Pineal Res 2016; 60:360-72. [PMID: 26882296 DOI: 10.1111/jpi.12318] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/09/2016] [Indexed: 12/16/2022]
Abstract
Optic neuritis (ON) is an inflammatory, demyelinating, and neurodegenerative condition of the optic nerve, which might induce permanent vision loss. Currently, there are no effective therapies for this disorder. We have developed an experimental model of primary ON in rats through a single microinjection of 4.5 μg of bacterial lipopolysaccharide (LPS) into the optic nerve. Since melatonin acts as a pleiotropic therapeutic agent in various neurodegenerative diseases, we analyzed the effect of melatonin on LPS-induced ON. For this purpose, LPS or vehicle were injected into the optic nerve from adult male Wistar rats. One group of animals received a subcutaneous pellet of 20 mg melatonin at 24 hr before vehicle or LPS injection, and another group was submitted to a sham procedure. Melatonin completely prevented the decrease in visual evoked potentials (VEPs), and pupil light reflex (PLR), and preserved anterograde transport of cholera toxin β-subunit from the retina to the superior colliculus. Moreover, melatonin prevented microglial reactivity (ED1-immunoreactivity, P < 0.01), astrocytosis (glial fibrillary acid protein-immunostaining, P < 0.05), demyelination (luxol fast blue staining, P < 0.01), and axon (toluidine blue staining, P < 0.01) and retinal ganglion cell (Brn3a-immunoreactivity, P < 0.01) loss, induced by LPS. Melatonin completely prevented the increase in nitric oxide synthase 2, cyclooxygenase-2 levels (Western blot) and TNFα levels, and partly prevented lipid peroxidation induced by experimental ON. When the pellet of melatonin was implanted at 4 days postinjection of LPS, it completely reversed the decrease in VEPs and PLR. These data suggest that melatonin could be a promising candidate for ON treatment.
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Affiliation(s)
- Marcos L Aranda
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | - María F González Fleitas
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | | | - María I Keller Sarmiento
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | - Mónica Chianelli
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | - Pablo H Sande
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | - Damián Dorfman
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
| | - Ruth E Rosenstein
- Laboratory of Retinal Neurochemistry and Experimental Ophthalmology, Department of Human Biochemistry, School of Medicine/CEFyBO, University of Buenos Aires/CONICET, Buenos Aires, Argentina
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191
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ZHAO JJ, ZHAI X, LUO M, BEN H, RONG PJ, WANG SX, LIANG YC. Effect of electroacupuncture at ear and body acupoints on the instant fasting blood glucose level of machins with type 2 diabetes mellitus. WORLD JOURNAL OF ACUPUNCTURE-MOXIBUSTION 2016. [DOI: 10.1016/s1003-5257(17)30042-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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192
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Homola M, Pfeffer M, Robson SC, Fischer C, Zimmermann H, Korf HW. Melatonin receptor deficiency decreases and temporally shifts ecto-5'-nucleotidase mRNA levels in mouse prosencephalon. Cell Tissue Res 2016; 365:147-56. [PMID: 26917036 DOI: 10.1007/s00441-016-2378-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 02/12/2016] [Indexed: 11/29/2022]
Abstract
Ecto-5'-nucleotidase (eN) is the major extracellular adenosine-producing ecto-enzyme in mouse brain. Via the production of adenosine, eN participates in many physiological and pathological processes, such as wakefulness, inflammation, nociception and neuroprotection. The mechanisms regulating the expression of eN are therefore of considerable neurobiological and clinical interest. Having previously described a modulatory effect of melatonin in the regulation of eN mRNA levels, we decided to analyze the melatonin receptor subtype involved in the regulation of eN mRNA levels by comparing eN mRNA patterns in melatonin-proficient transgenic mice lacking either the melatonin receptor subtype 1 (MT1 KO) or both melatonin receptor subtypes (MT1 and MT2; MT1/2 KO) with the corresponding melatonin-proficient wild-type (WT) controls. By means of radioactive in situ hybridization, eN mRNA levels were found to be diminished in both MT1 and MT1/2 KO mice compared with WT controls suggesting stimulatory impacts of melatonin receptors on eN mRNA levels. Whereas eN mRNA levels increased during the day and peaked at night in WT and MT1 KO mice, eN mRNA levels at night were reduced and the peak was shifted toward day-time in double MT1/2 KO mice. These data suggest that the MT2 receptor subtype may play a role in the temporal regulation of eN mRNA availability. Notably, day-time locomotor activity was significantly higher in MT1/2 KO compared with WT mice. Our results suggest melatoninergic signaling as an interface between the purinergic system and the circadian system.
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Affiliation(s)
- Moran Homola
- Institute of Anatomy II, Dr. Senckenbergisches Chronomedizinisches Institut (SCI), Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Martina Pfeffer
- Institute of Anatomy II, Dr. Senckenbergisches Chronomedizinisches Institut (SCI), Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Simon C Robson
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, MA 02215, USA
| | - Claudia Fischer
- Institute of Anatomy II, Dr. Senckenbergisches Chronomedizinisches Institut (SCI), Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Herbert Zimmermann
- Institute of Cell Biology and Neuroscience, Molecular and Cellular Neurobiology, Goethe University, Max-von-Laue-Strasse 13, 60438, Frankfurt am Main, Germany
| | - Horst-Werner Korf
- Institute of Anatomy II, Dr. Senckenbergisches Chronomedizinisches Institut (SCI), Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
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193
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Labunets IF, Talanov SA, Vasilyev RG, Rodnichenko AE, Utko NA, Kyzminova IA, Kopjak BS, Podjachenko EV, Sagach VF, Butenko GM. [THYMIC HORMONES, ANTIOXIDANT ENZYMES AND NEUROGENESIS OF BULBUS OLFACTORIUS IN RATS WITH PARKINSONISM: THE EFFECT OF MELATONIN]. ACTA ACUST UNITED AC 2016; 61:35-45. [PMID: 26845842 DOI: 10.15407/fz61.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The adult rats received both neurotoxin 6-hidroxidophamine and neurotoxin and melatonin. It was investigated a link between the disturbances of the brain antioxidant enzymes activity and thymic endocrine function, as possible pathogenic factors of parkinsonism, with changes in the number of neural stem cells (NSC) in the bulbus olfactorius. Rats with motor asymmetry in the apomorphine test and significant damage of the dopaminergic neurons in the-substantia nigra have decreased levels of superoxide dismutase, catalase and glutathione peroxidase activities in striatum (1.3-1.4 times) and blood thymulin content (8 times) compared to control group. On the contrary, examined indices were not changed in rats without motor asymmetry and correspondingly partly damaged neurons. The number of nestin(+)-cells in the bulbus olfactorius of rats without motor asymmetry increased from 91.2% to 99.3% and remained unchanged after melatonin administration course (10 mg/kg during 18 days). Melatonin administration resulted in the decrease in the number of nestin(+)-cells along with significant elevation of the decreased antioxidant enzymes activity and blood thymulin content in rats with circulatory movements. Possibilities of the enhancement of NSC differentiation in bulbus olfactorius into neuronal direction in such animals has been discussed. The conclusion about the potential use of melatonin as a neuroprotector in parkinsonism therapy has been made.
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194
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Couhert A, Delagrange P, Caignard DH, Chartier A, Suzenet F, Guillaumet G. Synthesis of 2-arylfuro[3,2-b]pyridines: Effect of the C2-aryl group on melatoninergic activity. Eur J Med Chem 2016; 109:268-75. [DOI: 10.1016/j.ejmech.2016.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 01/07/2016] [Accepted: 01/09/2016] [Indexed: 10/22/2022]
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195
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Ashbaugh A, McGrew C. The Role of Nutritional Supplements in Sports Concussion Treatment. Curr Sports Med Rep 2016; 15:16-9. [DOI: 10.1249/jsr.0000000000000219] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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196
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Viault G, Poupart S, Mourlevat S, Lagaraine C, Devavry S, Lefoulon F, Bozon V, Dufourny L, Delagrange P, Guillaumet G, Suzenet F. Design, synthesis and biological evaluation of fluorescent ligands for MT1 and/or MT2 melatonin receptors. RSC Adv 2016. [DOI: 10.1039/c6ra10812a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorescent melatoninergic ligands have been designed by associating the 4-azamelatonin ligands with different fluorophores.
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Affiliation(s)
- G. Viault
- Institut de Chimie Organique et Analytique
- Université d’Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex 2
- France
| | - S. Poupart
- Institut de Chimie Organique et Analytique
- Université d’Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex 2
- France
| | | | | | | | | | - V. Bozon
- PRC
- INRA
- CNRS
- IFCE
- Université de Tours
| | | | - P. Delagrange
- Institut de Recherche Servier
- Sciences Expérimentales
- 78290 Croissy
- France
| | - G. Guillaumet
- Institut de Chimie Organique et Analytique
- Université d’Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex 2
- France
| | - F. Suzenet
- Institut de Chimie Organique et Analytique
- Université d’Orléans
- UMR CNRS 7311
- 45067 Orléans Cedex 2
- France
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197
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Carriere CH, Kang NH, Niles LP. Chronic low-dose melatonin treatment maintains nigrostriatal integrity in an intrastriatal rotenone model of Parkinson's disease. Brain Res 2015; 1633:115-125. [PMID: 26740407 DOI: 10.1016/j.brainres.2015.12.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 11/11/2015] [Accepted: 12/18/2015] [Indexed: 12/21/2022]
Abstract
Parkinson's disease is a major neurodegenerative disorder which primarily involves the loss of dopaminergic neurons in the substantia nigra and related projections in the striatum. The pesticide/neurotoxin, rotenone, has been shown to cause systemic inhibition of mitochondrial complex I activity in nigral dopaminergic neurons, with consequent degeneration of the nigrostriatal pathway, as observed in Parkinson's disease. A novel intrastriatal rotenone model of Parkinson's disease was used to examine the neuroprotective effects of chronic low-dose treatment with the antioxidant indoleamine, melatonin, which can upregulate neurotrophic factors and other protective proteins in the brain. Sham or lesioned rats were treated with either vehicle (0.04% ethanol in drinking water) or melatonin at a dose of 4 µg/mL in drinking water. The right striatum was lesioned by stereotactic injection of rotenone at three sites (4 μg/site) along its rostrocaudal axis. Apomorphine administration to lesioned animals resulted in a significant (p<0.001) increase in ipsilateral rotations, which was suppressed by melatonin. Nine weeks post-surgery, animals were sacrificed by transcardial perfusion. Subsequent immunohistochemical examination revealed a decrease in tyrosine hydroxylase immunoreactivity within the striatum and substantia nigra of rotenone-lesioned animals. Melatonin treatment attenuated the decrease in tyrosine hydroxylase in the striatum and abolished it in the substantia nigra. Stereological cell counts indicated a significant (p<0.05) decrease in dopamine neurons in the substantia nigra of rotenone-lesioned animals, which was confirmed by Nissl staining. Importantly, chronic melatonin treatment blocked the loss of dopamine neurons in rotenone-lesioned animals. These findings strongly support the therapeutic potential of long-term and low-dose melatonin treatment in Parkinson's disease.
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Affiliation(s)
- Candace H Carriere
- Department of Psychiatry and Behavioural Neurosciences, Faculty of Health Sciences, McMaster University, HSC-4N77, 1200 Main Street West, Hamilton, ON, Canada L8N 3Z5.
| | - Na Hyea Kang
- Department of Psychiatry and Behavioural Neurosciences, Faculty of Health Sciences, McMaster University, HSC-4N77, 1200 Main Street West, Hamilton, ON, Canada L8N 3Z5.
| | - Lennard P Niles
- Department of Psychiatry and Behavioural Neurosciences, Faculty of Health Sciences, McMaster University, HSC-4N77, 1200 Main Street West, Hamilton, ON, Canada L8N 3Z5.
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198
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Muszyńska B, Kała K, Sułkowska-Ziaja K, Krakowska A, Opoka W. Agaricus bisporus and its in vitro culture as a source of indole compounds released into artificial digestive juices. Food Chem 2015; 199:509-15. [PMID: 26776002 DOI: 10.1016/j.foodchem.2015.12.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/09/2015] [Accepted: 12/09/2015] [Indexed: 11/19/2022]
Abstract
The popularity of Agaricus bisporus results not only from the quality of the flavors, but also from the content of many substances of therapeutic properties. This paper presents a study on RP-HPLC determination of the content of indole compounds released from the lyophilized biomass from in vitro cultures of A. bisporus into artificial digestive juices at 37°C. A. bisporus in vitro cultures were grown on media enriched with zinc salts. The release of 5-hydroxy-l-tryptophan and l-tryptophan was found in the greatest number of samples. The content of 5-hydroxy-l-tryptophan in the investigated samples ranged from 86.62 to 531 mg/100g d.w. The amount of l-tryptophan was determined within the range of 1.63-4.68 mg/100g d.w. and for melatonin 0.43-0.64 mg/100g d.w. It was demonstrated for the first time that in vitro cultures of A. bisporus release indole compounds in conditions simulating the human digestive tract.
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Affiliation(s)
- Bożena Muszyńska
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Medyczna St 9, Kraków 30-688, Poland.
| | - Katarzyna Kała
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Medyczna St 9, Kraków 30-688, Poland
| | - Katarzyna Sułkowska-Ziaja
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Medyczna St 9, Kraków 30-688, Poland
| | - Agata Krakowska
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Kraków 30-059, Poland
| | - Włodzimierz Opoka
- Department of Inorganic and Analytical Chemistry, Jagiellonian University, Collegium Medicum, Medyczna St 9, 30-688 Kraków, Poland
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199
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Sleep and inflammatory markers in different psychiatric disorders. J Neural Transm (Vienna) 2015; 124:179-186. [PMID: 26649857 PMCID: PMC5281642 DOI: 10.1007/s00702-015-1492-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 11/24/2015] [Indexed: 02/06/2023]
Abstract
Many psychiatric disorders, like schizophrenia, affective disorders, addictions and different forms of dementia are associated with sleep disturbances. In the etiology and course of those diseases inflammatory processes are regarded to be an increasingly important factor. They are also a frequently discussed element of the pathology of sleep. In this literature review reports on correlations between poor sleep and inflammatory responses in various psychiatric conditions are discussed. The link between schizophrenia, affective disorders and inflammatory cytokines is a complex phenomenon, which has been already confirmed in a number of studies. However, the presence of sleep deficits in those conditions, being a common symptom of depression and psychoses, can be an additional factor having a considerable impact on the immunological processes in mental illnesses. In the analyzed data, a number of studies are presented describing the role of inflammatory markers in sleep disturbances and psychopathological symptoms of affective, psychotic, neurogenerative and other disorders. Also attention is drawn to possible implications for their treatment. Efforts to use, e.g., anti-inflammatory agents in psychiatry in the context of their impact on sleep are reported. The aspect of inflammatory markers in the role of sleep deprivation as the treatment method in major depressive disorder is also discussed. A general conclusion is drawn that the improvement of sleep quality plays a crucial role in the care for psychiatric patients.
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200
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Brazão V, Colato RP, Santello FH, Filipin MDV, Toldo MPA, do Vale GT, Tirapelli CR, do Prado Júnior JC. Interleukin-17, oxidative stress, and inflammation: role of melatonin during Trypanosoma cruzi infection. J Pineal Res 2015; 59:488-96. [PMID: 26432539 DOI: 10.1111/jpi.12280] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 09/24/2015] [Indexed: 12/14/2022]
Abstract
Although the exact etiology of Chagas' disease remains unknown, the inflammatory process and oxidative stress are believed to be the main contributors to the dysfunction and pathogenesis during chronic Trypanosoma cruzi infection. Our hypothesis is that melatonin administered for 2 months daily could modulate the oxidative stress and the inflammatory response during the chronic infection. Flow cytometric analysis of macrophages and antigen-presenting cells (APC), expression of RT1B as well as LFA-1 and MCP-1 in CD4(+) and CD8(+) T cells and levels of interleukin-17A were assessed. The oxidative stress was evaluated through lipid peroxidation (LPO) analysis on the plasma of thiobarbituric acid-reactive substances (TBARS) and nitric oxide production. Decreased concentrations of nitrite and TBARS were found in infected and melatonin-treated animals, as well as a rising trend in the production of IL-17A as compared to infected and untreated counterparts. A significant decrease was found in the percentages of CD4(+) and CD8(+) T lymphocytes MCP-1 producers for infected and melatonin-treated rats. Reduced percentage of CD8(+) T cells producing LFA-1 was observed in control and melatonin-treated animals as compared to untreated rats. The cellular response of peritoneal APC cells and macrophages significantly dropped in infected and treated animals. As an endpoint, the use of antioxidant compounds such as melatonin emerges as a new and promising approach to control the oxidative stress during the chronic Chagas' disease partially mediated through the abrogation of LPO and the prevention of the inflammatory response and can be used for further investigation on treatment trials for other infectious diseases.
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Affiliation(s)
- Vânia Brazão
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Rafaela Pravato Colato
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Fabricia Helena Santello
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marina Del Vecchio Filipin
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Míriam Paula Alonso Toldo
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gabriel Tavares do Vale
- Department of Psychiatric Nursing and Human Sciences, Laboratory of Pharmacology, College of Nursing of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil
| | - Carlos Renato Tirapelli
- Department of Psychiatric Nursing and Human Sciences, Laboratory of Pharmacology, College of Nursing of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil
| | - José Clóvis do Prado Júnior
- College of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo, Ribeirão Preto, SP, Brazil
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