• Title/Summary/Keyword: medical fibers

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The Mode of Action of the Sympathetic Nerve to the Pelvic Organs (골반내(骨盤內) 제종장기(諸種臟器)의 교감신경지배(交感神經支配) 및 그 작용(作用) 기서(機序)에 관(關)하여 - 아드레날린성(性) 작용(作用) 및 콜린성작용(性作用)을 중심(中心)으로 -)

  • Gill, Won-Sik
    • The Korean Journal of Physiology
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    • v.1 no.2
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    • pp.135-140
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    • 1967
  • It has been described that the pelvic and adjoining viscera are innervated by sympathetic fibers from the hypogastric nerve. However, the mode of action of the hypogastric nerve fibers on the organs is not fully understood. The present paper reviewed the results of investigations on the mode of action of the hypogastric nerve with an emphasis of the experimental results obtained by the author and author's associates. The evidences clarified that the hypogastric fibers to the distal colon are cholinergic, whereas the fibers to the uterus, seminal vesicle, seminal duct and urinary bladder are adrenergic.

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Distally-extending muscle fibers across involved joints: study of long muscles and tendons of wrist and ankle in late-term fetuses and adult cadavers

  • Shaohe Wang;Shogo Hayashi;Zhe-Wu Jin;Ji Hyun Kim;Masahito Yamamoto;Gen Murakami;Shinichi Abe
    • Anatomy and Cell Biology
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    • v.56 no.1
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    • pp.46-53
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    • 2023
  • It is unclear whether forearm and crural muscle fibers extend distally across the wrist and ankle joints, respectively. We hypothesized, in late-term fetuses, an over-production of muscle bellies extending over the joint. Muscle fibers in histological sections from unilateral wrists and ankles of 16 late-term fetuses (30-40 weeks) were examined and compared with 15 adult cadavers. Muscle fibers of the flexor digitorum profundus (FDP) and flexor digitorum superficialis (FDS) in fetuses, especially muscle bellies to the third and fourth fingers, were found to extend far distally beyond the radiocarpal joint. The extensor digitorum and extensor pollicis longus on the extensor side of the wrist were found to carry distally-extending muscle fibers, but these fibers did not extend beyond the distal end of the radius. In the ankle, most muscle bundles in the flexor hallucis longus (FHL), fibularis brevis (FB) and extensor digitorum longus extended distally beyond the talocrural joint, with most FB muscle fibers reaching the level of the talocalcaneal joint. In adult cadavers, muscle fibers of the FDP and FHL did not reach the levels of the radiocarpal and talocrural joints, respectively, whereas the FB muscle belly always reached the talocalcaneal joint. Similarly, some of the FDS reached the level of the radiocarpal joint. Generally, infants' movements at the wrist and ankle could result in friction injury to over-extended muscle. However, the calcaneal and FDP tendons might protect the FB and FDS tendons, respectively, from friction stress.

Positive Effects of Diphlorethohydroxycarmalol (DPHC) on the Stability of the Integument Structure in Diet-Induced Obese Female Mice

  • Kim, Chae-lim;Cha, Sun-yeong;Chun, Min Young;Kim, Bumsoo;Choi, Min Young;Cheon, Yong-Pil
    • Development and Reproduction
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    • v.19 no.3
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    • pp.145-152
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    • 2015
  • Diphlorethohydroxycarmalol (DPHC) is a known to modulate the expression of extracellular matrix (ECM) components in 3T3-L1. However, the possible role of DPHC in integument stability during obesity induction is not clear yet. We evaluated the effects of DPHC on collagen or elastic fiber quantity in integument during obesity induction with high-fat diet. The dorsal back integument sections were stained with hematoxylin-eosin, Masson trichrome, and Verhoff-Van Gieson. The intensities of collagen fibers and elastin fibers were analyzed with ImageJ. The number of fibroblasts was counted at ${\times}1,000$ fields. The number of fibroblast was increased by obesity induction, but DPHC suppressed it in a concentration-dependent manner both in lean and obese mice. On the other hand, the intensities of collagen fibers were increased by DPHC treatment in obese mice groups but not in lean mice groups. The intensities of collagen fibers of obese mice were lower than that of the lean mice in 0% group. However, the number became similar between lean and obese mice by the treatment of DPHC. The intensity of elastic fibers was increased in the lean mice with the concentration of DPHC. In the obese mice group, there were increasing patterns but only significant at 10% DPHC group. The intensity of elastic fibers of obese mice was higher than lean mice in 0%, 1%, and 10% groups. Histologically epithelial cells and follicle cells which were diffused nuclear staining forms were increased by DPHC treatment. The results suggest that the activity of integument cells during obesity induction can be modulated by DPHC.

Liquid Flow and Pressure Drop of an Outside Flow Membrane Oxygenator with Hollow Fibers (외부흐름 중공사 막형 인공폐의 액체흐름과 압력손실)

  • 이삼철;김기범
    • Journal of Biomedical Engineering Research
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    • v.23 no.1
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    • pp.27-32
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    • 2002
  • The purpose of this study was to evacuate the effects of the number of tied hollow fibers in a novel membrane oxygenator that satisfied the limiting factor of minimizing the friction loss in the intravascular blood flow Pattern. The membrane oxygenator is a bundle consisted of several hundred ho1low fibers haying the outside diameter of 380 $\mu m$ and the axial jacket length of 600 mm. The eight different variation of tied hollow fibers in a bundle were designed. and the liquid flow pattern was controlled by a pump. The liquid pressure drop was measured by in vitro experiments using water and g1ycero1. Uniform blood flow pattern was observed for each number of tied hollow fibers. Pressure drop was 13-16 mmHg outside of the membrane oxygenator consisting of up to 700 ho1low fibers. More effective contact of liquid with the tied ho1low fibers was observed as a decrease in the number of the tied hollow fibers. and resulted in the enhancement of the friction tractor

The Change of Muscle Fiber by Aquatic Exercise on Rats Induced by Steroids Injection (스테로이드를 투여한 흰쥐에서 수중운동에 의한 근 섬유의 변화)

  • Yoon, Se-Won;Lee, Jung-Woo;Choi, Suk-Joo
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.1 no.2
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    • pp.21-30
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    • 2003
  • The purpose of this study was to know the effect of aquatic-exercise on muscle atrophy which induced by steroid injection. The forty-eight Sparague-Dawley adult male rats were assigned to the 4 groups; GroupI(distilled water injection), GroupII(steroid injection), GroupIII(distilled water injection and aquatic exercise), GroupIV(steroid injection and aquatic exercise). We observed their body weight, histological change by PAS stein. The results of this study were as follows; 1. After 2 weeks, the change of weights appeared that non-steroid injection groups increase weight and steroid injection groups decreased weight hasty. after 4 weeks, weights recovered from weight before test. It was possible to explain the change of weight by type II muscle fiber increase. 2. In histological change of muscle fibers, atrophy didn't observed in test group I, because type II muscle fibers were developed well. we observed not only injury of muscle fiber and muscle atrophy but specifically grouping type I muscle fiber in test group II. normal arrangement of muscle fibers were visible in test group and type II muscle fibers increased. we could observe muscle recovery because of type II muscle fibers increase in test group IV. therefore, it was seem that type II cell was recovering through aquatic exercise.

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Characteristics of wastewater from unit systems of automative process for manufacture of paper mulberry pulp fibers (닥 펄프 제조공정 자동화에 따른 단위공정 폐수의 특성)

  • Hwang, Ji-Hyun;Hwang, Sung-Jun;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.3
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    • pp.55-62
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    • 2015
  • Paper mulberry fibers have been used as fibrous raw materials for manufacturing traditional handmade paper, hanji for a long time. Compared to wood pulp fibers, pulp fibers from mulberry bast tissue have some benefits in physical and chemical properties due to their high D.P (degree of polymerization), M.W (molecule weight) and long fiber length. Specially, Korean handmade hanji shows outstanding characteristics in mechanical tensile strength, folding endurance, flexibility and long sustainable conservation properties. Therefore, hanji is widely applied to daily supplies, hygienic goods, medical supplies, clothing industries and so on. Recently, the potential demand of mulberry pulp fibers is more and more increased on the strength of high application fields. This study was focused on the possibility of wastewater recycling in unit operation systems for the development of automated mass production line. The properties and environmental loads of wastewater from debarking, cooking, bleaching and screening process were analyzed by means of COD, conductivity, turbidity and solid materials. The wastewater from debarking and cooking process was comparatively high in pollution load, and would be treated by additional approaches of chemico-physical method.

Effect of Humidity on the Electrospinning of Chitosan Solution (키토산 용액의 전기방사에 있어 습도의 영향)

  • Lee, Jin-Ah;Joo, Chang-Whan
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.273-274
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    • 2003
  • Chitin and chitosan have a wide range of application on the environmental and biomedical engineering by their biocompatibility, biodegradability, non-toxicity and adsorption property, etc. The efforts of manufacturing chitosan fibers are continuously maintained until now$\^$l.2)/. Electrospinning is new method to produce the nano-sized fibers for medical uses. Recently, formation of chitosan fiber using electrospinning is studied by many textile researchers. (omitted)

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A comprehensive review on Tukhme Kunjud (Sesamum indicum Linn.) with special reference to Unani System of Medicine.

  • Khatoon, Rizwana;Abbasi, Hana;Aslam, Mohammad;Chaudhary, Shahid Shah
    • CELLMED
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    • v.9 no.3
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    • pp.2.1-2.7
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    • 2019
  • Sesame (Sesamum indicum L.) is a rich source of edible oil most commonly it is used as a food product mainly in bakeries and also use as a common source of oil in daily kitchen needs. Due to the presence of some special phytochemicals like proteins, fibers, oil, minerals and antioxidants it is highly used for medicinal and therapeutic purposes. It is a good source of energy and act as an antiaging agent. Its seeds are used as Anti-helmintic, antihypertensive, antimicrobial, cytotoxic and Hepatoprotective but its seed coat which is a byproduct of sesame and a cherished source of fibers is normally use for animal feedstuff. In Unani system of medicine it is used both as drug & diet (dawa wa ghida). In classical Unani literature it is indicated in various disorders like Asthma, Dry Cough, Gastritis (due to any drug, excessive use of alcohol), Dryness of Intestine, Dryness in throat, Renal Stone, Bleeding Piles, Amenorrhea, Retention of urine, Dysuria, Orchitis, Sexual Debility, Anorexia. The present review article, an attempt have been made to compile all the pharmacological and Pharmacognostical characters of Sesamum indicum with special reference to Unani literature.

Effects of Scutellariae Radix on Locomotor Dysfunction of Contusive Spinal Cord Injury Induced Rats (황금(黃芩)이 척수압박손상 흰쥐의 운동기능장애에 미치는 영향)

  • Kim, Eun-Seok;Kim, Pyung-Soo;Kim, Bum-Hoi;Shin, Jung-Won;Kim, Seong-Joon;Sohn, Nak-Won
    • Journal of Acupuncture Research
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    • v.28 no.3
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    • pp.33-42
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    • 2011
  • Objectives : This study was performed to evaluate the effects of Scutellariae radix (SR) water extract on locomotor dysfunction induced by spinal cord injury (SCI) in rats. Methods : SCI was induced mechanical contusion following laminectomy of 10 th thoracic vertebra in Sprague-Dawley rats. SR was orally given once a day for 7 days after SCI. Neurological behavior was examined with the Basso-Beattie-Bresnahan locomotor rating scale. Tissue damage and nerve fiber degeneration were examined with cresyl violet and luxol fast blue (LFB) histochemistry. Using immunohistochemistry, cellular damages to neurons and nerve fibers were examined MAP-2. Results : 1. SR significantly ameliorated the locomotor dysfunction of the SCI-induced rats. 2. SR significantly reduced the number of motor neurons in the ventral horn of the SCI-induced rat spinal cord. 3. SR attenuated the reduction of nerve fiber shirnakage and degeneration of the SCI-induced rat spinal cord. 4. SR attenuated the reduction of MAP-2 positive cells in the peri-lesion of the SCI-induced rat spinal cord. Conclusions : These results suggest that SR improves the locomotor dysfunction of SCI by reducing degeneration of nerve fibers and motor neuron shrinkage in the ventral horn.

Effects of Eucommiae Cortex on Myofiber Type Transition and MyoD Expression in Hind Limb Muscle Atrophy of Rats (두충(杜沖) 이 근육위축 흰쥐의 후지 근섬유형 및 MyoD 발현에 미치는 영향)

  • Yun, Duk-Young;Park, Seong-Ha;Lee, Jong-Soo
    • Journal of Korean Medicine Rehabilitation
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    • v.18 no.1
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    • pp.47-63
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    • 2008
  • Objectives : Eucommiae cortex is reported that it helps bone and skeletal muscle stronger. In case of bone, many report is presented, but reports related to skeletal muscle are rarely existed. So in order to investigate effects of Eucommiae cortex on the skeletal muscle atrophy following stroke, cerebral infarct was induced by the middle cerebral artery occlusion (MCAO) in the rats. Methods : In order to induce MCAO rats, nylon suture was advanced and then blocked middle cerebral artery(MCA). Water extract of Eucommiae cortex was treated for 15 days, once a day orally, after the MCAO. Effects were evaluated with muscle weights, muscle fiber type composition, cross-sectioned area of muscle fibers in soleus and gastrocnemius of the unaffected and affected hind limbs. And MyoD protein expression in gastrocnemius was demonstrated with immunohistochemistry and western blotting. Results : In the affected hind limb of the MCAO rats, muscle weight loss of gastrocnemius and tibialis anterior muscles were attenuated by Eucommiae cortex treatment. In soleus muscle of the affected hind limb of the MCAO rats, increase of type-I fibers and decrease of type-II fibers were induced by Eucommiae cortex treatment. In soleus muscle of the affected hind limb of the MCAO rats, decrease of cross-sectioned areas of type-I fibers was attenuated by Eucommiae cortex treatment. In gastrocnemius muscle of the affected hind limb of the MCAO rats, increase of type-I fibers and decrease of type-II fibers were induced by Eucommiae cortex treatment. In gastrocnemius muscle of the affected hind limb of the MCAO rats, decreases of cross-sectioned areas of type-I and type-II fibers were attenuated by Eucommiae cortex treatment. In gastrocnemius muscle of the affected and unaffected hind limb of the MCAO rats, MyoD expressions were increased by Eucommiae cortex treatment. Conclusions : These results suggest that Eucommiae cortex has a protective effect against muscle atrophy, through the inhibition of the muscle cell apoptosis, following the central nervous system demage.