• Title/Summary/Keyword: Muscle relaxant

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Bioavailability of chlorphenesin carbamate in human plasma using a simple HPLC.

  • Jeong, Ji-Hoon;Park, Joon-Hong;Choi, Tae-Sik;Lee, Dong-Kyu;Kang, Hee-Yun;Son, Byung-Hyuk;Sohn, Uy-Dong
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.305.2-306
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    • 2003
  • We aimed at determining bioavailability of chlorphenesin carbamate, a muscle relaxant, and developing a simple analysis in human blood using HPLC. A rapid and sensitive HPLC method was developed and validated using reverse-phase C 18 column with retention time and limit of quantification of toferisone being 8.6 min and 0.5 ng/$m\ell$, respectively. Quantification was performed at 260 nm with tolferison as internal standard. (omitted)

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Sedative Action of Flavonoids and Saponin from the Seeds of Zizyphus vulgaris var. spinosus Bunge (산조인의 플라보노이드 및 사포닌의 진정작용)

  • Shin, Kuk-Hyun;Woo, Won-Sick;Lee, Chung-Kyu
    • Korean Journal of Pharmacognosy
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    • v.12 no.4
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    • pp.203-207
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    • 1981
  • The acute toxicity and sedative activity of flavonoids and saponin isolated from Zizyphus seeds have been evaluated in mice. All the compounds elicited potentiation of hexobarbital-induced hypnosis, inhibition of ladder-climbing and caffeine-induced hyperactivity. Swertisin was the most potent of all flavonoids tested. The potency of saponin in these tests was found to be higher than that of swertisin. The activities in rotarod test and electroshock seizure test, on the other hand, were relatively weak or nil. From these findings it was suggested that flavonoids and saponin from Zizyphus seeds have neuroleptic activity without anticonvulsant or muscle relaxant activity accompanied by neurological deficit.

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Suddenly fixed upward ocular deviation under general anesthesia

  • Kim, Won Jae;Park, Sang-Jin;Kim, Myung Mi
    • Journal of Yeungnam Medical Science
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    • v.34 no.2
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    • pp.290-292
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    • 2017
  • Various changes in ocular position are possible during general anesthesia as opposed to the awakening state. However, unexpected ocular deviation under general anesthesia is a disconcerting event as it can lead to difficult complications intraoperatively. To date, sudden fixed upward ocular deviation has been rarely reported previously. This phenomenon was observed in an 8-year-old boy during strabismus surgery. Suddenly fixed upward ocular deviation occurred when the speculum was inserted into the right eye. When the eyeball was pulled down, using forceps, there was some resistance, such as contracture of superior rectus. The eyeball sprang back into the upward position when the forceps was released. These changes could hamper the good exposition of the surgical field, leading to significant intraoperative difficulties and complications. Surgeons should be aware of this possibility, despite general anesthesia; if it occurs, proceed with the surgery as planned preoperatively, and both ophthalmic and anesthetic interventions should be used to solve this problem.

Influence of berberine on the blood pressure of rabbits

  • Ko, Suk-Tai;Lim, Dong-Yoon
    • Archives of Pharmacal Research
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    • v.3 no.1
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    • pp.23-30
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    • 1980
  • Berberine, when administered into a ear-vein of the rabbit anesthetized with urethane, produced a long-lasting, dose related fall in blood pressure, but intraventricular berberline did not elicit the hypotensive response. This hypotensive activity of berberine was not influenced by pretreatment of vagotomization and atropine. Depressor responses induced by berberine were not impaired by diphenhydramine, chlorisondamine, guanethidine and propranolol, but reduced significantly by phentolamine pretreatment. Berberine attenuated markedly prossor responses of norepinephrine and epinephrine. These results suggest that berberine causes the hypotensive activity that is attributable to alpha adrenoceptor blockade, but not to a direct relaxant effect upon vascular smooth muscle.

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Lumbar Disc Herniation in Tae Kwon Do Athletic Child

  • Kim, Sung-Hoon;Kim, Hyeun-Sung;Kim, Seok-Won
    • Journal of Korean Neurosurgical Society
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    • v.48 no.6
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    • pp.538-540
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    • 2010
  • Lumbar disc herniation is extremely uncommon in children below 10 years of age. A 7-year-old boy is reported who presented with low back pain and left leg radiating pain. The pain started seven days prior to presentation and was attributed to performing the jumping kick without any previous warm-up. Magnetic resonance imaging revealed a posterolateral disc herniation at the L3-4 level and multiple degenerative changes. The patient received conservative treatment including limitation of sports activities, anti-inflammatory and muscle relaxant medications as well as physical therapy. After three months of the aggressive treatment the child was symptom free. We present here a lumbar disc herniation in one of the youngest patient.

Pharmacological Effects of Puerariae Radix Butanol Extract on Cadmium Toxicity in Rats. (갈근 부탄올 엑기스가 흰쥐에 유발된 카드뮴 독성에 미치는 영향)

  • 손동헌;안형수;신승덕
    • YAKHAK HOEJI
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    • v.29 no.4
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    • pp.206-215
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    • 1985
  • 1) Puerariae Radix butanol ext. (100, 200, 400mg/kg, p.o. single treatment) alone partly showed blood pressure decreasing effect in SHRs and increasing effect of urinary volume in normal rats. 2) Cadmium nitrate (10mg/kg, s.c. single treatment) induced toxicity such as body weight decreasing effect, antidiuretic effect and muscle relaxant effect such as pull-up test, traction test and rota rod test in rats. However, Puerariae Radix butanol ext. (100, 200, 400mg/kg, p.o. single treatment) showed antidotal effects on the above and also in acute toxicity test when coadministered with both of them. 3) Cadmium nitrate (1mg/kg, s.c. 7 days consecutive treatment) did not showed toxicity in body weight change, blood pressure, change, serum biochemical parameters in rats. Puerariae Radix butanol ext. (100, 200, 400mg/kg, p.o. 7 days consecutive treatment) did not also showed any antidotal effects when coadministered with both of them for 7 days.

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Cardiovascular Actions of Daucus carota

  • Gilani, A.H.;Shaheen, F.;Saeed, S.A.
    • Archives of Pharmacal Research
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    • v.17 no.3
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    • pp.150-153
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    • 1994
  • Ethanolic extract of Daucus carota (DC) at the dose of 10-100 mg/kg caused a dose-dependent fall in systolic and diastolic arterial blood pressure in nomotensive anesthetized rats. These effects were not blocked by atropine (1 mg/kg) and pretratment with DC did not alter the pressor response to norepinephrine indicating that cardiovascular effects of DC are independent of cholinergic or adrenergic recptors involvement. In spontaneously beating guinea-pig paired atria, DC induced a concentration-dependent (03-5 mg/ml) decrease in force and rate of atrial contractions. In rabbit thoracic aorta, DC caused inhibition of $K^+$-induced contractions at similar concentrations. These results suggest that the extract may exhibit $Ca^{2+}$ channel blocking-like direct relaxant action on cardiac and smooth muscle preperations and this action may be responsible for its hypotensive effect observed in the in vivo studies.

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Studies on the Effects of Piperidine Derivatives on Blood Pressure and Smooth Muscles Contractions

  • Saeed, M.;Saify, Z.S.;Gilani, A.H.;Iqbal, Z.
    • Archives of Pharmacal Research
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    • v.21 no.4
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    • pp.370-373
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    • 1998
  • Ten substituted phenacyl derivatives of 4-hydroxypiperidine were synthesized and studied for their effects on the mean arterial blood pressure (MABP) in normotensive anaesthetized rats and smooth muscles contractions of isolated rabbit jejunum. Two derivatives caused fall in blood pressure at the dose of 10-20 mg/kg and one rise in blood pressure at the dose of 20 mg/kg. Two compounds exhibited biphasic response (hypotensive followed by hypertensive) and one gave triphasic response at 10 mg/kg dose. Rest of four derivatives were found devoid of any effect on mean arterial blood pressure up to the dose of 30 mg/kg. All the derivatives except two caused relaxant effect on the spontaneous contraction of rabbit jejunum at the dose range of 0.1 -2 mg/kg.

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Neuropharmacological Activity of Humulus lupulus Extracts

  • Lee, Kang-Mee;Jung, Jun-Sub;Song, Dong-Keun;Kim, Yung-Hi
    • Korean Journal of Pharmacognosy
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    • v.24 no.3
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    • pp.231-234
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    • 1993
  • Neuropharmacological profile of Humulus lupulus (hop) extract was studied in mice. At doses above 100 mg/kg(i.p.), it decreased spontaneous locomotor activity and raised the nociceptive threshold in the hot-plate test. At doses above 250 mg/kg (i.p.), it increased pentobarbital-induced sleeping time and produced muscle relaxant effect. At the dose of 500 mg/kg, anticonvulsive effect against pentylenetetrazole-induced convulsion and hypothermic effect was observed.

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Bioavailability of tolperisone in human plasma using a simple HPLC.

  • Jeong, Ji-Hoon;Park, Joon-Hong;Choi, Tae-Sik;Lee, Dong-Kyu;Jung, Chan-Heon;Son, Byung-Hyuk;Sohn, Uy-Dong
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.304.1-304.1
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    • 2003
  • We aimed at determining bioavailability of tolperisone, a muscle relaxant. and developing a simple analysis in human blood using HPLC. A rapid and snsitive HPLC method was developed and validated using reverse-phase C18 column with retention time and limit of quantification of toferisone being 7.3 min and 20 ng/$m\ell$, respectively. Quantification was performed at 260 nm with chlorphenesin as internal standard. (omitted)

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