• Title/Summary/Keyword: MOTILITY

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Measurements of Random Motility Coefficients of Alcaligenes xylosoxidans Decomposing Aromatic Compounds in Sands (방향족화합물을 분해하는 Alcaligenes xylosoxidans의 모래속에서의 무작위운동 계수 측정)

  • 이정훈;유영제;유인상;김상용;이진원
    • KSBB Journal
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    • v.13 no.4
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    • pp.449-455
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    • 1998
  • The bacterial motility in sand was studied with Alcaligenes xylosoxidans Y234 which is known as a strong decomposer of aromatic chemicals, especially toluene. Apparent motility coefficient (${\mu}$c,app) and apparent chemotaxis coefficient (${\mu}$c,app) for toluene were measured in the sands which have four different porosities. Adsorption ratio of Alcaligenes xylosoxidans Y234 on the sands was measured as 17%. The ramdom motility coefficients were 0.85∼1.68${\times}$10-3$\textrm{cm}^2$/sec, and decreased as the porosity of sands decreased. Apparent chemotaxis coefficients were measured as 1.1∼6.8${\times}$10-5$\textrm{cm}^2$/sec, and decreased as the porosity decreased and with time. The tendency of alcaligenes xylosoxidans Y234 movement towards toluene seemed very weak and showed little chemotaxis.

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Effect of Traditional Acupuncture on Abomasal Motility in Holstein Cow (젖소에서 일반침술이 제 4위 운동성에 미치는 영향)

  • 이주명;남치주;장광호
    • Journal of Veterinary Clinics
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    • v.15 no.1
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    • pp.151-155
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    • 1998
  • Abomasal motility was observed by needling to acupoints for 20 min. The acupoints used were guan yuan yurt da chang yurt dei yup pi yurt and hou hoi. The acupoint which showed the increase of the largest wave type was pi yu and the increase of wave type was observed 20 minutes after needling in hou hoi and dei yu acupoint. But there was no effect on abomasal motility after needling to guan yuan yu and da chang yu. On the other hands change in amplitude of the abomasal contraction after needling to these acupoints was not abserved. These results indicate that stimulation to pi yu acupoint would be the most useful to increase the abomasal motility.

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Autotaxin-induced tumor cell motility requires the activation of Rac/Cdc42. PAK, and FAK

  • Jung, In-Duk;Lee, Jang-Soon;Young, Yun-Seong;Park, Chang-Gyo;Lee, Hoi-Young
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.325.1-325.1
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    • 2002
  • Cell motility plays important physiological roles in embryogenesis. immune defense. wound healing. and metastasis of tumor cells. Cell motility of normal cells is tightly regulated. while tumor cell motility is aberrantly regulated or autoregulated. Autotaxin (ATX) is a 125-kDa glycoprotein. originally isolated from the conditioned medium of human melanoma A2058 cells. ATX stimulates random (chemokinetic) and directed (chemotactic) motility of human tumor cells at high picomolar to low nanomolar concentrations. (omitted)

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Changes of Sperm Motility in Black Seabream (Acanthopagrus schlegeli) by Osmolality of Diluents (희석액의 삼투질농도에 따른 감성돔 (Acanthopagrus schlegeli) 정자의 운동성 변화)

  • 장영진;임한규;장윤정
    • Journal of Aquaculture
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    • v.13 no.3
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    • pp.187-191
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    • 2000
  • The effects of osmolality on the sperm motility in black seabream (Acanthopagrus schlegeli) were studied. Sperm motility of black seabream was suppressed when the osmolality was equal to the seminal fluid. But sperm became motile when the osmolality increased in electrolyte solution (NaCl, KCl, $CaCl_2$, $MgCl_2$) and non-electrolyte solution (mannitol, glucose, fructose, sucrose). The changes of sperm motility index (SMI) by osmolality of diluents described a parabola. In all of the diluents, SMI was the highest at ca. 1,000 mOsm/kg, which is similar to the osmolality of seawater. Sperm motility was induced by osmolality of diluents, but exposure to hypotonic or hypertonic diluents was harmful to the sperm.

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Effects of Curcumin on Sperm Motility, Viability, Mitochondrial Activity and Plasma Membrane Integrity in Boar Semen

  • Lee, A-Sung;Lee, Sang-Hee;Lee, Seunghyung;Yang, Boo-Keun
    • Biomedical Science Letters
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    • v.23 no.4
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    • pp.406-410
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    • 2017
  • Curcumin is known as a natural antioxidant, decreasing oxidative stress in animal cells. Generally, oxidative stress induces reactive oxygen species in sperm and leads to decreased sperm characteristics in pigs. Therefore, this study investigated the influence of curcumin on sperm motility, viability, mitochondrial activity and plasma membrane integrity in pigs. Curcumin (0, 5 and $10{\mu}M$) was treated in boar semen, which were incubated for 9 hours in $37^{\circ}C$. Then, motility, viability, mitochondrial activity, plasma membrane integrity of sperm was analyzed every 3 hours. In the results, sperm motility was significantly increased by $5{\mu}M$ curcumin after 3 and 9 hours after incubation, and viability was significantly higher in $5{\mu}M$ curcumin treatment at 3 hours (P<0.05). Similarly, sperm mitochondrial activity and plasma membrane integrity were significantly increased by $5{\mu}M$ curcumin at 3, 6 and 9 hours after incubation (P<0.05). There results suggest that curcumin improve sperm characteristics such as motility, viability, mitochondrial activity, and plasma membrane integrity, and may exert a positive effect on sperm fertility in pigs.

Pharmacological Studies of Erythrosine (Erythrosine의 약리학적(藥理學的) 연구(硏究))

  • Kim, Jin-Hyon;Ahn, Young-Ran;Kim, Hack-Seang
    • Journal of Pharmaceutical Investigation
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    • v.12 no.3
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    • pp.93-99
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    • 1982
  • The effects of erythrosine on motility of frog heart, rabbit duodenum and uterus isolated, and on mice intestinal motility and voluntary activity were investigated. The effect of erythrosine $2.3{\times}10^{-5}M$ on isolated frog heart showed a slight decrease of the amplitude of motility, and the heart motility stopped in $3.5{\times}10^{-4}M$. With the administration of erythrosine $3.4{\times}10^{-4}M$, the isolated rabbit duodenum showed a remarkable contraction and this effect was inhibited by atropine $1.4{\times}10^{-7}M$. The administration of erythrosine $2.3{\times}10^{-3}M$, produced a contractile effect on the isolated rabbit uterus, and the motility of $6.9{\times}10^{-3}M$ started to increase in contractions at first and finally stopped, keeping in continuous contractions. The effects of erythrosine 0.5, 1.0, 10, and 20mg/kg on mice intestinal motility were not significantly different from this of the normal control. With 20 and 40mg/kg of erythrosine, the effects on voluntary activity showed the decrease of 21 and 58% respectively, and voluntary activity of the mice pretreated with erythrosine 20 and 40mg/kg, induced by C. N. B. 30mg/kg showed the decrease of 57 and 78% respectively in contrast with the normal control group.

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Effects of Organic Solvents on Mucus Penetration Distance, Motility and Survival Rate of Human Sperm in vitro (수종의 유기용제가 사람 정자의 점액 침투능, 운동성과 생존율에 미치는 영향)

  • Yoo Dong-Chul;Choi Dal-Woong
    • Environmental Analysis Health and Toxicology
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    • v.19 no.2
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    • pp.177-182
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    • 2004
  • Alcohol consumption and exposure to endocrine disruptors and industrial solvents have been implicated in impaired spermatogenesis, increase in the incidence of malformed sperm and decrease in the percentage of moving sperm. The aim of this study was to determine and compare the direct effects of some organic solvents(bisphenol A; BPA, dibutyl phthalate; DBP, formaldehyde; HCHO, dimethylsulphoxide; DMSO, ethanol) on mucus penetration distance, motility and survival rate of human sperm in vitro. Semen samples from 3 health subjects were prepared using swim-up method and 0.0005-0.5% organic solvents were added to the test medium. BPA, DBP, HCHO and DMSO produced significant decreases in the motility and survival rate with a different potency. The most potent inhibition of mucus penetration distance, motility and survival rate was observed after exposure to HCHO. A concentration of 0.0005% HCHO significantly inhibited sperm motility. When ethanol m.: added directly to sperm, at concentrations equivalent to that in serum after heavy drinking, these damaging effects were lowest compared with other solvents. Present study shows that each compound has different toxic potency to human sperm and we need special caution for the use of HCHO.

A Case Report of a Thalamus, Midbrain, and Cerebellum Infarction Patient Suffering from Blepharoptosis and Ocular Motility Disorders Treated by Korean Medicine (시상, 중뇌, 소뇌경색으로 인한 안검하수, 안구운동장애를 호소하는 환자의 한방 치험 1례)

  • Woo, Seong-jin;Baek, Kyung-min;Jang, Woo-seok
    • The Journal of Internal Korean Medicine
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    • v.39 no.2
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    • pp.201-208
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    • 2018
  • Objectives: This is a case report about the effect of Korean medicine on blepharoptosis and ocular motility disorders that occur with thalamus, midbrain, and cerebellum infarctions. Methods: The patient was treated using Korean medicine such as acupuncture, moxibustion, and herbal medicine (Boyanghwano-tang-gamibang). The change of blepharoptosis was evaluated by measurement of palpebral fissure width (PFW), marginal reflex distance-1 (MRD1), and marginal reflex distance-2 (MRD2). The change inocular motility disorders was evaluated by comparison using photographs of the extraocular movements of the patient. We used the Numeric Rating Scale-11 (NRS-11) of diplopia and dizziness to evaluate the effectiveness of treatment. Results: After treatment, blepharoptosis and ocular motility disorders were improved. The NRS-11 score of dizziness decreased from 10 to 7, and diplopia disappeared after Korean medicine treatment. Conclusions: According to this study, Korean medicine can be effective for treating blepharoptosis and ocular motility disorders in thalamus, midbrain, and cerebellum infarctions.

Assessment of Sleep Disturbance on Night-time Instantaneous Railway Noise by using Actiwatch (Actiwatch 를 이용한 철도소음에 의한 수면방해의 정량적 평가)

  • Hong, Ji-Young;Kim, Jae-Hwan;Lim, Chang-Woo;Kim, Ku-Tae;Sung, Dong-Won;Lee, Soo-Gab
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2006.05a
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    • pp.759-763
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    • 2006
  • The World Health Organization(WHO) has recommended population of sleep disturbance as one of the environmental health indicators. But the percentage of respondents who felt highly sleep disturbed, that is, %HSD can???thave application to sleep disturbance from instantaneous noise. Therefore, this study has been carried out to present the technique for assessing sleep disturbance on instantaneous noise quantitatively. The study of sleep disturbance on night time instantaneous railway noise has been undertaken. Noise monitor has been in operation from 22 hours to 7 hours during 6 nights at 12 locations. To assess instantaneous noise induced sleep disturbance, it was decided to measure body movement by actiwatch. %motility was used as indicators of sleep disturbance. %motility is the expected value of probability of motility value during 7 epochs (105s) of any noise event. The measures of instantaneous motility have been related to measures of instantaneous railway noise events. The relationship shows that %motility is a good predictor for assessing sleep disturbance and Korean is more sensitive to noise than European although the railway noise have been considered in this study. This study can be extended to assessing long-term sleep disturbance and give a guideline far policy decision.

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Effect of Traditional Acupuncture on Canine Gastric Motility

  • Jeong, Seong-Mok;Kim, Hui-Young;Nam, Tchi-Chou
    • Journal of Veterinary Clinics
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    • v.19 no.4
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    • pp.397-400
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    • 2002
  • The effect of traditional acupuncture on gastric motility was investigated in dogs. Six healthy dogs, of mixed breed, were used in this study. The gastric motility was evaluated by electrogastromyograms (EGMG) of the smooth muscle of the pyloric region. The acupoints investigated were ST-36, ST-40, ST-41, ST-42, ST-45, BL-21 and CV-12. The gastric motility was increased by traditional acupuncture at ST-36 and BL-21 but decreased by traditional acupuncture at CV-12 However, there were no significant changes in the gastric motility after acupuncture at ST-40, ST-41, ST-42 and ST-45.