scholarly journals Relaxation Effect of Ethanol Extract Black (EEB) on Plain Muscle Contraction from Insulated Guinea Pig’s Trakea by Acethyloline

2020 ◽  
Author(s):  
. Ramanathan ◽  
Ermi Girsang ◽  
Ali Napiah Nasution ◽  
I. Nyoman Ehrich Lister
Keyword(s):  
Muscle Contraction ◽  
Ethanol Extract ◽  
Relaxation Effect

scholarly journals Chemistry and Pharmacology of the Kazakh Crataegus Almaatensis Pojark: An Asian Herbal Medicine

Antioxidants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 300 ◽  
Author(s):  
Sabrina S. Soares ◽  
Elmira Bekbolatova ◽  
Maria Dulce Cotrim ◽  
Zuriyadda Sakipova ◽  
Liliya Ibragimova ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Crude Extract ◽  
High Speed ◽  
Vascular Reactivity ◽  
Ethanol Extract ◽  
Relaxation Effect ◽  
Total Leukocyte Count ◽  
Popular Medicine ◽  
Internal Mammary ◽  
Optimized Conditions

Crataegus almaatensis, an endemic ornamental plant in Kazakhstan is used in popular medicine due to its cardiotonic properties. The most studied species of the same genus are commonly found in Europe, which shows the importance of having the Kazakh species validated via its chemical and pharmacological studies. High-speed countercurrent chromatography (HSCCC) operated under optimized conditions enabled an isolation of the three main compounds from the aqueous phase of the leaves ethanol extract, further identified by nuclear magnetic resonance (NMR), as quercetin 3-O-rhamnoside (quercitrin) (4.02% of the crude extract-CECa); quercetin 3-O-β-galactoside (hyperoside) (1.82% of CECa); kaempferol 3-O-α-L-rhamnoside (afzelin) (0.94% of CECa). The CECa, the aqueous phase of the crude extract (APCa) together with the isolates were evaluated for their vascular (vascular reactivity in human internal mammary artery-HIMA), anti-nociceptive (formalin-induced liking response and hot plate) and anti-inflammatory (subcutaneous air-pouch model-SAP) activities. CECa at the concentrations of 0.014 and 0.14 mg/mL significantly increased the maximum contractility response of HIMA to noradrenaline. The APCa CR curve (0.007–0.7 mg/mL) showed an intrinsic relaxation effect of the HIMA. APCa at the dose of 100 mg/kg i.p. significantly decreased the total leukocyte count and the IL-1β release in the SAP wash.

scholarly journals RELAXATION EFFECT OF ETHANOLIC EXTRACT OF AVERRHOA BILIMBI L. LEAVES ON ILEUM SMOOTH MUSCLE CONTRACTION OF IN VITRO ISOLATED RAT (RATTUS NORVEGICUS)

2018 ◽  
Vol 11 (13) ◽  
pp. 135 ◽  
Author(s):  
Rulia Meilina, ◽  
Edy Suwarso ◽  
Edy Suwarso ◽  
Edy Suwarso ◽  
Aminah Dalimunthe ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Muscle Contraction ◽  
Rattus Norvegicus ◽  
Ethanolic Extract ◽  
Relaxation Effect ◽  
Smooth Muscle Contraction ◽  
Ileum Contraction ◽  
Isolated Rat

Objective: The study was aimed to investigate the relaxation effect of ethanolic extract of Averrhoa bilimbi L. leaves (EEABL) and ondansetron against 5-HT-induced contraction of the 5-HT3 receptor.Methods: The study of the relaxation effect of the cumulative concentration EEABL leaves (0.5–4 mg/mL) and ondansetron (10−5–3×10−2) after the contracted with 5-HT (EC80: 1.158×10−6 M) was conducted in vitro using isolated rat’s ileum organ in the Tyrode solution.Results: The EEABL and ondansetron decreased ileum contraction after induced by 5- HT. EEABL has no difference in terms of ability as ondansetron in reducing the ileum smooth muscle contraction induced by 5-HT (p>0.05).Conclusion: The EEABL has relaxation effect on smooth muscle of rat’s isolated ileum which has induced by 5-HT.

scholarly journals Relaxation Effect of Extract Ethanol Curcuma Longa on Isolated Guine Pig Trachea

2021 ◽  
pp. 284-289
Author(s):  
Hidayati Yanita ◽  
Chrismis Novalinda Ginting ◽  
Linda Chiuman ◽  
Sahna Ferdinand
Keyword(s):  
Smooth Muscle ◽  
Curcuma Longa ◽  
Ethanol Extract ◽  
Relaxation Effect ◽  
Developed Countries ◽  
World Health ◽  
Control Group ◽  
Chronic Obstructive ◽  
Inflammatory Disorder ◽  
Chronic Inflammatory Disorder

Aims: Asthma is a chronic obstructive pulmonary disease which is a world health problem that is not only infected in developed countries but also in developing countries. According to the National Asthma Education and Prevention Program (NAEPP), asthma can be defined as a chronic inflammatory disorder that occurs in the airways, which involves inflammatory cells. curcumin reduces allergic airway inflammation in mice through inhibition of a specific pathway aimed at investigating the anti-inflammatory effect of curcumin in acute allergic asthma and its underlying mechanisms in mice. Study Design: This study is experimental study. Methodology: The experimental animals were divided into 2 groups, each group consisting of 4 animals. Group 1 gave theophline as a positive control group and group 2 was given extracts with concentrations (1 mg / ml, 2 mg / ml, 3 mg / ml, 4 mg / ml, 5 mg / ml, 6 mg / ml, 7 mg / ml and 8 mg / ml). These animals are acclimatized for 1 (one) week with the aim of homogenizing their food and life with the same conditions so that they are considered eligible for research. Results: The ethanol extract of curcuma longa has no different ability from atropine sulfate 1 x 10-6 M in reducing the smooth muscle contraction of isolated guinea pig tracheal induced by acetylcholine, the strength of acetylcholine without incubation contraction compared to acetylcholine with EETH incubation showed statistically different results (p<0.05). Conclusion: The mechanism of the relaxing effect of curcuma longa on isolated mouse smooth muscle is mediated through inhibition of the PDE enzyme.

scholarly journals Uji Aktivitas Antikejang Ekstrak Etanol Daun Titanus (Leea Aequata L.) Terhadap Ileum Marmut Terpisah (Cavia Porcellus) Secara In Vitro

2018 ◽  
Vol 1 (1) ◽  
pp. 320-330
Author(s):  
Erikson Sinaga ◽  
Nahitma Ginting ◽  
Edy Suwarso
Keyword(s):  
Smooth Muscle ◽  
Muscle Relaxation ◽  
Stable Condition ◽  
Ethanol Extract ◽  
Relaxation Effect ◽  
Smooth Muscle Contraction ◽  
Atropine Sulfate ◽  
Smooth Muscle Relaxation ◽  
Organ Bath

Titanus (Leea aequata L.) merupakan tumbuhan dari suku leeaceae yang digunakan dalam pengobatan tradisional di daerah Tanah Karo, Provinsi Sumatera utara, sebagai obat luka dan obat anti tetanus. Salah satu tanda utama dari penyakit tetanus adalah spasme otot atau kejang disebagian atau seluruh tubuh. Penelitian ini bertujuan untuk mengetahui efek antikejang berupa relaksasi dari ekstrak etanol daun titanus terhadap kontraksi ileum marmut terisolasi yang dikontrasikan dengan asetilkolin. Penelitian ini dilakukan secara in vitro menggunakan alat organ bath. Tahapan penelitian adalah persiapan bahan dan pengujian efek relaksasi ileum terpisah. Parameter yang diukur dalam penelitian ini adalah relaksasi otot polos ileum terpisah. Sebelum dilakukan pengujian, ileum marmut terpisah diekuilibrasi selama 45 menit sampai diperoleh kondisi yang stabil didalam larutan tyrode dengan suhu 37o C yang diaerasi dengan gas karbogen (O2:CO2) 95% : 5%. Pengujian efek relaksasi dilakukan setelah ileum marmut dikontraksi dengan asetilkolin, kemudian masing masing ileum diberikan konsentrasi kumulatif ekstrak daun titanus dan atropin sulfat . Hasil pengujian yang diperoleh menunjukkan bahwa pemberian ekstrak etanol daun titanus memiliki efek relaksasi. Ekstrak etanol daun titanus pada konsentrasi 2,5mg/ml (105,4203±2,9151) mempunyai kemampuan yang tidak berbeda dengan atropin sulfat 1 x 10-5 (113,9796±4,5825) dalam menurunkan kontraksi otot polos ileum yang diinduksi oleh asetilkolin 1,889 x 10-4 M (p>0,005). Jadi dapat disimpulkan bahwa ekstrak etanol daun titanus mempunyai efek relaksasi terhadap otot polos ileum terpisah dengan kemampuan yang tidak jauh berbeda dengan atropin sulfat. Titanus (Leeaaequata L.) is a plant from Leeaceae family used in traditional medication in Tanah Karo, North Sumatera as wound and anti-tetanus medicine. One of the main signs of tetanus is muscle spasm or seizure in some or all parts of body. This research aimed to evaluatethe anti-seizure effect of titanus leaves ethanol extractsuch as relaxation isolated ileum of marmot which was contacted with acetylcholine. This research was conducted byin vitro studyusing organ bath instrument. The stages of this research were the material preparation and isolated ileum relaxation effect evaluation. The parameter measured in this research was the isolated ileum smooth muscle relaxation. Before the test, isolated marmot ileum was equilibrated for 45 minutes until the stable condition in tyrode solution was obtained at 37°C temperature which aerated with carbogen gas (O2:CO2) 95%:5%. The relaxation effect test was conducted aftermarmot ileum was contracted with acetylcholine, and then, titanus leaves extract and atropine sulfate were added to each ileumswith cumulative concentration. The result indicated that the titanus leaves ethanol extract had relaxation effect. Titanus Leaves ethanol extract in 2.5 mg/ml concentration (105.4203±2.9151) had the same ability as atropine sulfate 1x10-5 (113.9796±4.5825)in decreasing the ileum smooth muscle contraction induced with acetylcholine 1.889x10-4 M (p>0.005).It could be concluded that titanus leaves ethanol extract hasrelaxation effect to isolated ileum smooth muscle and it was not so different with atropine sulfate.

scholarly journals Effects of Curcuma Longa Ethanol Extract on Isolated Guinea Pigthile Smooth Muscle in Acetylcholine Induction

2021 ◽  
Vol 4 (1) ◽  
pp. 13-23
Author(s):  
Zheng Yuebin ◽  
Florenly ◽  
Liena ◽  
Fioni
Keyword(s):  
Smooth Muscle ◽  
Curcuma Longa ◽  
Antioxidant Properties ◽  
Smooth Muscles ◽  
Ethanol Extract ◽  
Relaxation Effect ◽  
Epidemiological Studies ◽  
Smooth Muscle Contraction ◽  
Tracheal Ring ◽  
Main Compound

Epidemiological studies show that nearly 20% of the world's population suffers from diseases related to allergies and asthma. The main compound of turmeric is curcumin has several pharmacological properties, antioxidant properties, anti-inflammatory, asthma treatment. The study aimed to determine the effects of ethanol extract Curcuma longa on the smooth muscle of the isolated guinea pigtic trachea in acetylcholine induction. This research method was experimental to observe the relationship of Curcuma longa ethanol extract (EECL) to the relaxing effects of isolated smooth muscle trachea marmot (tracheal ring chain) inserted into a bath organ filled with Kreb's physiological fluid by maintaining a temperature of 35-370C and associated with a Matlab recorder. Samples used by male guinea pigs and ethanol extract Curcuma longa (EECL). The results of the study that ethanol extract Curcuma longa has a relaxing effect on the smooth muscles of the trachea isolated from the experimental rats contracted with acetylcholine. Ethanol extract Curcuma longa has the ability not dising from theophylline 2 x 10-4 M in reducing smooth muscle contraction of insulated Cavia porcelain trachea induced by acetylcholine, acetylcholine strength without incubation contraction compared to acetylcholine with EECL incubation showed statistically different results (p <0.05). The mechanism of Curcuma longa relaxation effect on isolated guinea pig smooth muscle is mediated through inhibition of the enzyme PDE.

Introductory Remarks

1980 ◽  
Vol 38 ◽  
pp. 598-599
Author(s):  
H. Mohri
Keyword(s):  
Muscle Contraction ◽  
Experimental Evidence ◽  
Sea Urchin ◽  
Constant Length ◽  
Thin Filaments ◽  
Bridge Formation ◽  
Thick Filaments ◽  
Sliding Mechanism ◽  
Radial Spokes ◽  
Cilia And Flagella

In 1959, Afzelius observed the presence of two rows of arms projecting from each outer doublet microtubule of the so-called 9 + 2 pattern of cilia and flagella, and suggested a possibility that the outer doublet microtubules slide with respect to each other with the aid of these arms during ciliary and flagellar movement. The identification of the arms as an ATPase, dynein, by Gibbons (1963)strengthened this hypothesis, since the ATPase-bearing heads of myosin molecules projecting from the thick filaments pull the thin filaments by cross-bridge formation during muscle contraction. The first experimental evidence for the sliding mechanism in cilia and flagella was obtained by examining the tip patterns of molluscan gill cilia by Satir (1965) who observed constant length of the microtubules during ciliary bending. Further evidence for the sliding-tubule mechanism was given by Summers and Gibbons (1971), using trypsin-treated axonemal fragments of sea urchin spermatozoa. Upon the addition of ATP, the outer doublets telescoped out from these fragments and the total length reached up to seven or more times that of the original fragment. Thus, the arms on a certain doublet microtubule can walk along the adjacent doublet when the doublet microtubules are disconnected by digestion of the interdoublet links which connect them with each other, or the radial spokes which connect them with the central pair-central sheath complex as illustrated in Fig. 1. On the basis of these pioneer works, the sliding-tubule mechanism has been established as one of the basic mechanisms for ciliary and flagellar movement.

The antimicrobial activity of Usnea barbata ethanol extract

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
M Živković ◽  
J Kukić-Marković ◽  
M Milenković ◽  
G Nikolić ◽  
I Savić ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Ethanol Extract
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