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| Registros recuperados: 12 | |
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| Fadaei-Kenarsary,Meysam; Moghaddam,Hadi Fathi; Mansouri,Seyyed Mohammad Taghi; Farbood,Yaghoob. |
| ABSTRACT Relapse is highly prevalent after detoxification and depression. Due to the advantages of venlafaxine compared with other antidepressants, it is expected that venlafaxine administration may reduce relapse after detoxification and depression. This study aimed to evaluate the effects of venlafaxine on depression-induced relapse to morphine dependence after methadone detoxification. Eighty Sprague-Dawley rats were habituated and conditioned with morphine (10 mg/kg, S.C., for 4 days). After that, primary forced swimming and conditioned place preference (CPP) were tested. They were followed by methadone (70 mg/kg/day, P.O., for 7 days) administration, extinguishing, forced swimming stress (FSS) and administration of venlafaxine (80 mg/kg/day, I.P., for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphine; Methadone; Depression; Relapse; Venlafaxine; Rat. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100311 |
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| TSUJITA,MIKI; SAKURABA,SHIGEKI; KURIBAYASHI,JUNYA; HOSOKAWA,YUKI; HATORI,EIKI; OKADA,YASUMASA; KASHIWAGI,MASANORI; TAKEDA,JUNZO; KUWANA,SHUN-ICHI. |
| Morphine is often used in cancer pain and postoperative analgesic management but induces respiratory depression. Therefore, there is an ongoing search for drug candidates that can antagonize morphine-induced respiratory depression but have no effect on morphine-induced analgesia. Acetylcholine is an excitatory neurotransmitter in central respiratory control and physostigmine antagonizes morphine-induced respiratory depression. However, physostigmine has not been applied in clinical practice because it has a short action time, among other characteristics. We therefore asked whether donepezil (a long-acting acetylcholinesterase inhibitor used in the treatment of Alzheimer's disease) can antagonize morphine-induced respiratory depression. Using the... |
| Tipo: Journal article |
Palavras-chave: Morphine; Donepezil; Rabbit; Respiratory depression; Alzheimer's disease; Cholinesterase inhibitor. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000400008 |
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| Esfandyari,Zahra; Mirazi,Naser; Sarihi,Abdolrahman; Rafieian-Kopaei,Mahmoud. |
| ABSTRACT: Pain is a normal protective response to tissue injury caused by physical trauma, noxious chemicals and microbiological agents. Use of chemical drugs and medicinal plants is a conventional method to manage pain; however, their side effects have caused increased tendency to the use of herbal medicines among patients. This study was conducted to investigate antinociceptive action of Ricinus communis seed’s extract (RCE) in male Balb/C mice. In this experimental study, 72 male mice weighing 25-35gr were used. Animals were randomly divided into six groups of 12 mice each, including: Control group, three groups separately treated respectively with 100, 200, and 400mg/kg hydroethanolic R. communis seed extract, morphine (1mg/kg)-treated group, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antinociception; Ricinus communis; Morphine; Mice. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600601 |
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| Tabarelli,Z.; Berlese,D.B.; Sauzem,P.D.; Mello,C.F.; Rubin,M.A.. |
| Surfactants are frequently used to improve solubilization of lipophilic drugs. Cremophor EL (CrEL) is a polyoxyethylated castor oil surfactant used to solubilize water-insoluble drugs such as anesthetic, antineoplastic, immunosuppressive and analgesic drugs, vitamins and new synthetic compounds, including potential analgesics. The antinociceptive effect of CrEL (3.2, 6.4 and 10.6 g/kg, in 10 ml/kg body weight, by gavage) on the abdominal writhing response induced by intraperitoneal administration of acetic acid (0.8%, 10 ml/kg body weight) and on the tail immersion test was investigated in mice. Control animals received castor oil (10 ml/kg body weight) or saline (0.9% NaCl, 10 ml/kg body weight). CrEL reduced nociception in a dose-dependent manner in both... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Antinociception; Cremophor EL; Tail immersion test; Writhing test; Dipyrone; Morphine. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000100016 |
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| Karadag,C.H.; Dokmeci,D.; Dost,T.; Ulugol,A.; Dokmeci,I.. |
| We have shown that morphine has an anticonvulsive effect against maximal electroconvulsive shock (MES) in mice, and this effect is antagonized by histamine H1-receptor antagonists. Brain histamine is localized both in neurons and in mast cells, and morphine is known to enhance the turnover of neuronal histamine and to release histamine from mast cells. In the present experiments, compound 48/80 was injected chronically (0.5 mg/kg on day 1, 1 mg/kg on day 2, 2 mg/kg on day 3, 3 mg/kg on day 4, and 4 mg/kg on day 5, twice daily, ip) to deplete mast cell contents. Morphine (0.001-10 mg/kg, ip; N = 20) produced a dose-dependent anticonvulsive effect against MES seizure in mice with non-depleted mast cells, whereas it did not exert any anticonvulsive effect in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphine; Anticonvulsive effect; Histamine; Mast cells; Compound 48/80; Electroshock. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000300011 |
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| Kazemi,Masoomeh; Tekieh,Elaheh; Golabi,Sahar; Sahraei,Hedayat. |
| Based on previous studies, a variety of bioenvironmental elements including inappropriate nutrition, diseases, infections, stressors, and medications are involved in epigenetic changes. Drug abuse is one of the most important causes of epigenetic changes and a concern in today's world. Studies have shown that morphine use by pregnant mothers causes several disorders in mothers in addition to transferring abnormalities to the next generation (placenta and embryo). Epigenetic factors such as morphine cause changes in gene expression in placenta as the first embryonic defense barrier. Because placenta does all the nutritional exchanges between mother's and embryo's blood, placental health guarantees normal embryonic development. Many studies have been... |
| Tipo: Journal article |
Palavras-chave: Development; Morphine; Embryo; Epigenetic; Pregnancy; Placenta. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100036 |
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| Prado,W.A.; Pontes,R.M.C.. |
| The treatment of pain before it initiates may prevent the persistent pain-induced changes in the central nervous system that amplify pain long after the initial stimulus. The effects of pre- or postoperative intraperitoneal administration of morphine (2 to 8 mg/kg), dipyrone (40 and 80 mg/kg), diclofenac (2 to 8 mg/kg), ketoprofen (10 and 20 mg/kg), and tenoxicam (10 and 20 mg/kg) were studied in a rat model of post-incisional pain. Groups of 5 to 8 male Wistar rats (140-160 g) were used to test each drug dose. An incision was made on the plantar surface of a hind paw and the changes in the withdrawal threshold to mechanical stimulation were evaluated with Von Frey filaments at 1, 2, 6 and 24 h after the surgery. Tenoxicam was given 12 or 6 h... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preemptive analgesia; Morphine; Dipyrone; Diclofenac; Ketoprofen; Tenoxicam. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000100016 |
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| Natalini,Cláudio Corrêa; Linardi,Renata Lehn; Polydoro,Alexandre da Silva. |
| The study was done to compare the heart rate, arterial blood pressure, arterial blood gases, respiratory rate, body temperature, and behavior after subarachnoid administration of hyperbaric morphine (MorphineD10), buprenorphine (BuprenorphineD10), methadone (Methadone D10), and 10% dextrose (D10) in conscious horses. Six adult horses were studied. Treatments were administered into the lombo-sacral subarachnoid space through an epidural catheter, MorphineD10 at 0.01mg kg-1, BuprenorphineD10 at 0.001mg kg-1, MethadoneD10 at 0.01mg kg-1, and 10% dextrose as a control group. The results showed that there are minimum changes in heart and respiratory rate, blood gases, blood pressure, and body temperature after subarachnoid administration of hyperbaric opioids... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphine; Methadone; Buprenorphine; Hyperbaric opioid; Subarachnoid. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000500015 |
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| Achaval,M.; Penha,M.A.P.; Swarowsky,A.; Rigon,P.; Xavier,L.L.; Viola,G.G.; Zancan,D.M.. |
| We describe the behavior of the snail Megalobulimus abbreviatus upon receiving thermal stimuli and the effects of pretreatment with morphine and naloxone on behavior after a thermal stimulus, in order to establish a useful model for nociceptive experiments. Snails submitted to non-functional (22ºC) and non-thermal hot-plate stress (30ºC) only displayed exploratory behavior. However, the animals submitted to a thermal stimulus (50ºC) displayed biphasic avoidance behavior. Latency was measured from the time the animal was placed on the hot plate to the time when the animal lifted the head-foot complex 1 cm from the substrate, indicating aversive thermal behavior. Other animals were pretreated with morphine (5, 10, 20 mg/kg) or naloxone (2.5, 5.0, 7.5 mg/kg)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Snail; Thermal avoidance; Nociception; Morphine; Naloxone. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100012 |
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| Almeida,M.B.; Costa-Malaquias,A.; Nascimento,J.L.M.; Oliveira,K.R.; Herculano,A.M.; Crespo-López,M.E.. |
| Morphine is a potent analgesic opioid used extensively for pain treatment. During the last decade, global consumption grew more than 4-fold. However, molecular mechanisms elicited by morphine are not totally understood. Thus, a growing literature indicates that there are additional actions to the analgesic effect. Previous studies about morphine and oxidative stress are controversial and used concentrations outside the range of clinical practice. Therefore, in this study, we hypothesized that a therapeutic concentration of morphine (1 μM) would show a protective effect in a traditional model of oxidative stress. We exposed the C6 glioma cell line to hydrogen peroxide (H2O2) and/or morphine for 24 h and evaluated cell viability, lipid peroxidation, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphine; Glia; Oxidative stress; Hydrogen peroxide; Lipid peroxidation; Opiod. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000500398 |
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| Registros recuperados: 12 | |
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