• Title/Summary/Keyword: Nerve tissue

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Research about design and manufacture of Crossing High-Amplitude Magneto-Therapy own nerve system for Muscuoskeltal tissue rehalibitation treatment (근조직 재활치료를 위한 자계신경 자극시스템의 설계 및 구현)

  • Kim, Whi-Young
    • Proceedings of the IEEK Conference
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    • 2006.06a
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    • pp.855-856
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    • 2006
  • Magnetic nerve stimulation treatment is much backward real condition than other field. Specially, successful medical treatment introduction of magnetic field (MF) can was refered long ago in Avicenna's work, and is thought as age of medicine magnetology development recently. These development is achieved through biologist and biophysicist and clinician's joint effort, but, new mountings and relationship air tassel are developed steadily. Magnetic nerve stimulation treatment field designs treatment system by each function during long wave high-amplitude (traditional magneto therapy of greatly great that strong that) short time that CMF, VMF, PMF field etc. are representative but are HPMT technology in this research and manufacture and special quality did comparative analysis.

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Intravascular Papillary Endothelial Hyperplasia in Foot Adherent to a Saphenous Nerve Branch: A Case Report (복재신경 분지와 유착되어 발생한 족부의 혈관내 유두내피 증식증: 증례 보고)

  • Lee, Sang Hyeong;Kim, Chang Hee;Jung, Seung Hyo
    • Journal of Korean Foot and Ankle Society
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    • v.18 no.3
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    • pp.129-132
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    • 2014
  • Intravascular papillary endothelial hyperplasia (IPEH) has appeared in the literature under a variety of names, including Masson's tumor, Masson's hemangioma, and Masson's pseudoangiosarcoma. It is a benign lesion of the skin and subcutaneous tissue characterized by reactive proliferation of vascular endothelial cells with papillary formations. The clinical picture is not specific and the lesion resembles malignant angiosarcoma clinically and histopathologically. Therefore, it is often mistaken for angiosarcoma and a group of other benign and malignant vascular lesions. We report on a case of IPEH adherent to peripheral nerve treated with operative excision.

Superficial malignant peripheral nerve sheath tumor from recurrent neurofibroma in the abdominal wall of a patient without neurofibromatosis type 1

  • Jung, Chang Yeon;Bae, Jung Min;Choi, Joon Hyuk;Jung, Ki Hoon
    • Journal of Yeungnam Medical Science
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    • v.36 no.1
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    • pp.63-66
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    • 2019
  • Malignant peripheral nerve sheath tumor (MPNST) is rare, accounting for 5-10% of all soft tissue sarcomas. MPNST is characteristically aggressive and has a poor prognosis. Fifty percent of patients with MPNST have neurofibromatosis type 1 (NF1). NF-associated MPNST occurs more often at younger ages than sporadic MPNST, but the survival difference is controversial. Superficial MPNST from a recurrent neurofibroma is extremely rare and only a limited number of cases have been reported in the literature. Herein, we report an unusual case of superficial MPNST from a recurrent neurofibroma in a patient without NF1.

Thrombosed Fusiform Dilatation of Persistent Median Artery with Normal Median Nerve (정상 정중신경에서 혈전을 가진 잔류정중동맥의 예)

  • Park, Gi-Young;Kwon, Dong Rak;Kwon, Dae Gil;Jung, Won Bin
    • Clinical Pain
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    • v.18 no.1
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    • pp.40-43
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    • 2019
  • Carpal tunnel syndrome can be produced by abnormal mass effect due to trauma, ganglion cysts, various soft tissue tumors, musculotendinous variants, and aberrant vascular structures. Persistent median artery is one of the causes of the carpal tunnel syndrome. Thrombosed persistent median artery usually accompanies the anomaly of the median nerve and causes a sudden onset of severe pain and paresthesia. In contrast to previous literature, we report the rare case of gradual onset and mild symptom of a 53-year-old man with a thrombosed persistent median artery but without anomaly of the median nerve and abnormal finding of electrophysiologic study.

Expression of Corazonin Gene by Developmental Stage of Scuttle Fly

  • Hohyun Park
    • Biomedical Science Letters
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    • v.29 no.4
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    • pp.330-335
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    • 2023
  • The corazonin (Crz) gene showed two subtypes of different length at laval and pupal stage. The long subtype fade out in adult central nerve system (CNS) but the short one survive through all the life cycle from larva to adult. The short subtype has the same base sequences with mature Crz mRNA and detected in both brain and ventral nerve cord (VNC). The long one, on the contrary, was detected only in the brain tissue. As observed in above results, Crz neurons develop in different pattern in the CNS of scuttle fly and the Crz gene expresses two different subtypes. These results suggest that this neurotransmitter may perform differential neurophysiological functions in the scuttle fly. Variation in the amino acid composition of the final active undecapeptide supports in strong those possibilities. We expect further studies on the relationship between neurophysiological functions of Crz and behavioral characteristics of the scuttle fly.

A Case of Giant Malignant Peripheral Nerve Sheath Tumor of Neck (경부의 거대 악성 말초 신경성 종양 예)

  • Choonghun Han;Hanaro Park
    • Korean Journal of Head & Neck Oncology
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    • v.40 no.1
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    • pp.43-47
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    • 2024
  • Malignant peripheral nerve sheath tumor (MPNST) is an extremely rare sarcoma of soft tissue. It is locally invasive, frequently recurred and metastasizes distantly, therefore has a very poor prognosis. the most involved sites are human body and extremities, and MPNST occurs and involved very rarely in the parapharynx of neck. MPNST does not react to radiotherapy and chemotherapy, therefore complete surgical resection is the most important treatment. Since immunohistochemical staining is essential for the final diagnosis, it is common to be confirmed after surgery. We report a case of giant MPNST without symptom in the head and neck involving the right parapharynx with multiple distant metastases in a 74-year-old patient on a review of the literature.

A CLINICAL STUDY OF ANESTHETIC EFFICACY OF ALKALINIZING LIDOCAINE IN INFERIOR ALVEOLAR NERVE BLOCKS (하치조신경 전달 마취 시 알칼리화 된 리도카인의 마취 효능에 관한 임상적 연구)

  • Kim, Tae-Hwan;Kim, Kyung-Wook;Kim, Chul-Hwan
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.27 no.3
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    • pp.276-282
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    • 2005
  • Inferior alveolar nerve block using lidocaine is the most frequent local anesthetic method in the dental treatment, but clinically it is not always successful. The 2% lidocaine cartridge has been used commonly in dental anesthesia. It contains vasoconstrictor and antioxidant, which presents low pH which provides chemical stability and longer shelf life. But alkalinized local anesthetics has less tissue trauma, easier dissociation of the non-ionized base which penetrates nerve sheath, rapid onset and more intensity. In this study, in inferior alveolar nerve block, alkalinized lidocaine using sodium bicarbonate (experimental group) is compared with plain lidocaine (control group) about injection pain, anesthetic onset, duration and postinjection discomfort. In inferior alveolar nerve block, alkalinized lidocaine using sodium bicarbonate showed lower injection pain. There was significant difference statistically from plain lidocaine(p=0.019). Comparing with plain lidocaine, alkalinized lidocaine produced more rapid onset (lip & pulp anesthetic onset), there was no significant difference(p>0.05). but there was boundary significance (0.050.05). These results suggest that addition of sodium bicarbonate to 2% lidocaine(1:100,000 epinephrine) for inferior alveolar nerve block is more effective for reduction of injection pain and onset time.

Connective Tissue Massage (Bindegewebs massage) (결합조직 맛사지)

  • Kim, Jong-Soon;Ryoo, Jae-Kwan
    • Journal of Korean Physical Therapy Science
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    • v.4 no.3
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    • pp.475-489
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    • 1997
  • Connective tissue massage(CTM, Bindegewebs massage) are developed and named by Mrs. Elizabeth Dicke, a German physical therapist. The CTM is used primarily for internal disorder such as myocarditis, coronary insufficiency, high blood pressure, functional stomach and intestinal disorders, inflamma-tion of the gallbladder, and hepatitis, arterial circulatory problems, venous disorders, headache, particularly trauma to the head, and some gynecologic disorder, etc. Which is performed with special stroking technique of the subcutaneous tissue of the trunk, extremities, and face. The mechanism of effectiveness of CTM is based on a viscerocutaneous reflex. The stroking stimulates the nerve end-ings of the autonomic nervous system. The impulses activated by stroking travel to the sympathetic trunk and the spinal cord and brain, which causes a change in reaction susceptibility. The most important for apply CTM is necessary to know the reflex zone (Head's zone, Mackenzie's zone and Dicke's connective tissue zone). Dicke's connective tissue zones are only found by the special dia-gnostic stroking. Because the connective tissue zones no discomfort when unmanipulated, and thus the patient is unaware of them. It is characterized by diagnostic stroking that causes a sharp pain in the tissue. As a general rule, all treatment are preceded by the basic stroke from the level of the coccyx to the first lumbar vertebra and each stroke is done three times. The right side is done first, then the left side.

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Biomedical Application of Silk Sericin: Recent Research Trend

  • Seong-Gon Kim;Je-Yong Choi;HaeYong Kweon
    • International Journal of Industrial Entomology and Biomaterials
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    • v.48 no.1
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    • pp.1-12
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    • 2024
  • Silk sericin, a natural protein from silkworm cocoons, is emerging as a multifunctional biomaterial in biomedicine, particularly in tissue engineering and wound healing. Recent studies have highlighted its biocompatibility, biodegradability, and potential for chemical modification, which allows it to be incorporated into various scaffold architectures. This review article synthesizes current research, including the development of sericin-based hydrogel scaffolds for tissue engineering and sericin's role in enhancing wound healing. Key findings demonstrate sericin's ability to refine scaffold porosity and mechanical strength, expedite tissue healing, and reduce bacterial load in wounds. The integration of sericin into novel bioactive dressings and its use in peripheral nerve injury repair are also discussed, showcasing its adaptability and efficacy. The convergence of these studies illustrates the broad applications of sericin, from scaffold design to clinical interventions, making it a promising material in regenerative medicine and tissue engineering, with the potential to improve patient outcomes significantly.

A Case of Malignant Peripheral Nerve Sheath Tumor with Hypopharyngeal Cancer (하인두암과 동반된 경부의 악성 말초 신경초종 1예)

  • Lim, Sang-Ho;Lee, Kyung-Seok;Yang, Yoon-Soo;Hong, Ki-Hwan
    • Korean Journal of Head & Neck Oncology
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    • v.28 no.1
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    • pp.37-41
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    • 2012
  • The malignant peripheral nerve sheath tumor(MPNST) is an extremely rare soft tissue sarcoma of ectomesenchyme also known as malignant schwannoma or malignant neurilemoma. It is a highly malignant sarcoma, which is locally invasive, frequently leading to multiple recurrences and eventual metastatic spread. The peak incidence of this disease is known to arise in the seventh decades. In human body, trunk and extremities are the most commonly involved sites, and only 8-14% of all lesions appear in head and neck region. Because immunohistochemical staining is essential in final diagnosis. The authors report a case of malignant peripheral nerve sheath tumor in neck with hypopharyngeal cancer simultaneously on a review of the literature.