• Title/Summary/Keyword: peripheral

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Implementation of a Bluetooth-LE Based Wireless ECG/EMG/PPG Monitoring Circuit and System (블루투스-LE 기반 심전도/근전도/맥박 무선 모니터링 회로 및 시스템 구현)

  • Lee, Ukjun;Park, Hyeongyeol;Shin, Hyunchol
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.6
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    • pp.261-268
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    • 2014
  • This paper presents a electrocardiogram(ECG), electromyogram(EMG), and Photoplethysmography(PPG) signal wireless monitoring system based on Bluetooth Low Energy (BLE). ECG and EMG sensor interface analog front-end circuits are designed by using off-the-shelf parts. Texas Instruments(TI)'s CC2540DK is used for BLE-based communication. Two CC2540DK modules are used as Peripheral and Central nodes. In peripheral device, vital signals are acquired by the analog front-ends and fed to ADC for analog-to-digital conversion. The peripheral transmitts the data through the air to the central device. The central device receive the data and sends them to PC using UART. GUI is designed using Labview for displaying the acquired vital signals. The developed system can be used for future ubiquitous wireless healthcare system based on bluetooth 4.0.

Clinical Utility of Two Interferon-gamma Release Assays on Pleural Fluid for the Diagnosis of Tuberculous Pleurisy

  • Kang, Ji Young;Rhee, Chin Kook;Kang, Na Hyun;Kim, Ju Sang;Yoon, Hyoung-Kyu;Song, Jeong Sup
    • Tuberculosis and Respiratory Diseases
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    • v.73 no.3
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    • pp.143-150
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    • 2012
  • Background: The release of interferon-gamma (IFN-${\gamma}$) by T lymphocytes increases after rechallenge with Mycobacterium tuberculosis antigen, especially, at a localized site of tuberculosis (TB) infection. We aimed to compare the clincial efficacy of two commercial IFN-${\gamma}$ release assays from pleural fluid for the diagnosis in tuberculous pleurisy. Methods: We performed T-SPOT.TB and QuantiFERON-TB Gold tests simultaneously on pleural fluid and peripheral blood samples from patients with pleural effusion, in South Korea, an area with intermediate TB burden. Results: Thirty-six patients were enrolled prospectively, and tuberculous pleurisy was found in 21 patients. Both the numbers of IFN-${\gamma}$ secreting T cells and the concentration of IFN-${\gamma}$ were greater in the pleural tuberculous group, comparing with the non-tuberculous group. Moreover, in the tuberculous group, there was a significant difference in IFN-${\gamma}$ producing spot-forming cells using the T-SPOT.TB method between pleural fluid and peripheral blood. The receiver operating characteristic (ROC) curve, was the greatest for pleural fluid T-SPOT.TB test, followed by peripheral blood T-SPOT.TB test, peripheral blood QuantiFERON-TB Gold test, and pleural fluid QuantiFERON-TB Gold test (area under the ROC curve of 0.956, 0.890, 0.743, and 0.721, respectively). The T-SPOT.TB assay produced less indeterminate results than did QuantiFERON-TB Gold assay in both pleural fluid and peripheral blood. Conclusion: These findings suggest that the pleural fluid T-SPOT.TB test could be the most useful test among the IFN-${\gamma}$ release assays for diagnosing tuberculous pleurisy in an area with an intermediate prevalence of TB infection.

Effects of Nerve Regeneration by Bogijetong-tang Treatment on Peripheral Nerves Damaged by Taxol and Crush Injury (보기제통탕이 말초신경병증 모델에서 신경 손상 회복에 미치는 영향)

  • Park, Sang-Woo;Kim, Chul-Jung;Cho, Chung-Sik
    • The Journal of Internal Korean Medicine
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    • v.34 no.4
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    • pp.384-404
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    • 2013
  • Objectives : Effects of Bogijetong-tang (BJT) on peripheral nerve regeneration have been reported in a previous study on BJT but additional study on a damaged peripheral neuropathy where its damage level is physically and chemically more severe was needed. Plus, this study was conducted because there haven't been any studies for BJT on central nerve regeneration. Methods : In order to check the effect on central nerve regeneration, the study on cerebellum cells was started and the sciatic nerve was used to observe the effects on a peripheral nerve which was severely damaged both physically and chemically. Nerve recovery effects were observed by analyzing target proteins such as phospho-extracellular signal-regulated kinase, ${\beta}1$ integrin, neurofilament 200, growth-associated protein-43, cyclin-dependent kinase 1, phospho-vimentin, phospho-Smad, and caspase 3. Results : The significant changes of target protein in cerebellum neurons have been observed. The changes of index protein on the axon regeneration and the nerve recovery in the sciatic nerve have been observed and the effects on cell protection were observed, as well. Conclusions : This study confirmed that BJT made a significant influence on nerve protection and recovery of a damaged peripheral neuropathy and it also made a possibility of its regeneration in a damaged central nerve injury.

Peripheral Insulin Doesn't Alter Appetite of Broiler Chicks

  • Liu, Lei;Xu, Shaohua;Wang, Xiaojuan;Jiao, Hongchao;Lin, Hai
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.9
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    • pp.1294-1299
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    • 2016
  • An experiment was conducted to investigate the effect of peripheral insulin treatment on appetite in chicks. Six-d-age chicks with ad libitum feeding or fasting for 3 h before injection received a subcutaneous injection of 0, 1, 3, 5, 10, or 20 IU of insulin or vehicle (saline). The results showed peripheral insulin treatment (1 to 20 IU) did not alter significantly the feed intake in chicks under either ad libitum feeding or fasting conditions within 4 h (p>0.05). Compared with the control, plasma glucose concentration was significantly decreased after insulin treatment of 3, 5, 10, and 20 IU for 4 h in chicks with ad libitum feeding (p<0.05). In fasted chicks, 10 and 20 IU insulin treatments significantly decreased the plasma glucose level for 4 h (p<0.05). Peripheral insulin treatment of 10 IU for 2 or 4 h did not significantly affect the hypothalamic genes expression of neuropeptide Y, proopiomelanocortin, corticotropin-releasing factor and insulin receptors (p>0.05). All results suggest peripheral administration of insulin has no effect on appetite in chicks.

Quality of Life in Colorectal Cancer Patients with Chemotherapy-Induced Peripheral Neuropathy (항암화학요법으로 인한 말초신경병증을 경험하는 대장암 환자의 삶의 질)

  • Kim, Jeong-Hye;Choi, Kyung-Sook;Kim, Tae-Won;Hong, Yong-Sang
    • Asian Oncology Nursing
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    • v.11 no.3
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    • pp.254-262
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    • 2011
  • Purpose: The purpose of this study was to identify the quality of life in colorectal cancer patients with chemotherapy-induced peripheral neuropathy. Methods: A total of 93 patients were recruited in the cross-sectional survey design. Quality of life in colorectal cancer patients were measured by European Organization for Research and Treatment of Cancer (EORTC) QLQ C30 and CIPN20. Results: In the QLQ C30, the mean score of the global health status was 59.41, the functional scale was 73.29 and symptom scale was 26.72. In CIPN20, the mean score of sensory scale was 32.70, autonomic scale was 22.88 and motor scale was 16.12. In the QLQ C30, the global health status showed significant differences according to surgery (p=.027) and the functional scale, and the symptom scale showed significant differences according to gender (p=.046, p=.020) and nonpharmacologic intervention (p=.001, p=.009). The CIPN20, the sensory scale showed significant differences according to age (p=.006), DM (p=.005), grade of CIPN (p=<.001) the status of chemotherapy (p=.001) and nonpharmacologic intervention (p=.010). Conclusion: The level of quality of life in colorectal cancer patients with peripheral neuropathy was relatively low. There is a need for developing a nursing intervention for colorectal cancer patients to improve their quality of life and to decrease chemotherapy-induced peripheral neuropathy.

The Clinical Effect of High Voltage AC Reid Therapy(HEALTHTRON) on Peripheral Circulatory Disturbance and Functional Outcome of Rehabilitation in CVA Patients (교류고압전계요법이 뇌졸중환자의 말초혈류 및 재활기능에 미치는 효과에 대한 임상연구)

  • Sung Kang Keyng;Hwang Choong Yeon;Lee Sang Kwan;Lee So Young;Cheong Sang Su;Kang Se Young;Lee Jong Deck
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.3
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    • pp.609-615
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    • 2002
  • A medical treatment of alternating current high-voltage electric field therapy is a method in which we get a healing effect, applying electric field to an organism through an artificial device. In order to estimate the clinical effects of alternating current high-voltage electric field load(HEALTHTRON) on the rehabilitation of stroke patients, improvement of a peripheral blood circulation, and psychogenic symptom, we used BEUNZEUNGHEYNG Instrument, NIHSS(the National Institutes of Health Stroke Scale), FIM(Functional Independence Measure)lnstrument to research BEUNZEUNGHEYNG and recovery of rehabilitative funation. and also we used Thermography, Pulse Meter to measure body temperature and pulse, blood elements, and neuro modulators. We have reached the following conclusions after researching the clinical effects of alternating current high-voltage electric field therapy on the recovery of rehabilitative function and peripheral blood circulation. 1. HEALTHTRON efficiently has increased the volume of peripheral blood circulation in stroke patients. 2. HEALTHTRON rapidly has treated the symptoms of sleeplessness, alertness, and dizziness of stroke patients. 3. HEALTHTRON rapidly has improved rehabilitative function of stroke patients and the adjustment to their activities.

Characterization of immunosuppressive factors in the mastitis-infected mammary gland of non-lactating cows II. Suppression of mitogen-induced lymphoblastogenesis by neutrophils from peripheral blood and mammary gland secretion (건유기 유방염 감염우의 유방내 면역저하요인 규명에 관한 연구 II. 호중구에 의한 말초혈액 및 유즙 림프구의 mitogen 유도성 증식반응 억제작용)

  • Shin, Dong-baek;Park, Yong-ho;Nam, Hyang-mi;Moon, Jin-san;Joo, Yi-seok;Shin, Jong-uk
    • Korean Journal of Veterinary Research
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    • v.36 no.3
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    • pp.647-655
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    • 1996
  • To establish the effective ways to prevent bovine mastitis, the study has been performed to investigate the attributable factors causing down-regulation of immune responses in mammary gland of non-lactating cows. Lymphocytes from peripheral blood and mammary gland secretions(MGS) were obtained from normal healthy cows and mastitic cows, respectively. Lymphoblastogenesis were investigated carefully by adding different concentrations of supernatants collected from pure-cultures of neutrophils seperated from peripheral blood and MGS, respectively. The results obtained are as follows ; 1. Lymphoblastogenesis activity stimulated by Con A, PWM and PHA were significantly reduced in MGS from mastitic cows. 2. Supernatants collected from pure-culture of neutrophils separated both from peripheral blood and MGS showed inhibitory effect on mitogenic lymphoblastogenesis. 3. Supernatants from mammary gland neutrophils have shown 7 times more inhibitory activity than those from peripheral blood and this inhibitory effect was increased in proportion to increasing concentrations of supernatants when those were added to lymphoblast cells in culture.

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Characterization of immunosuppressive factors in the mastitis-infected mammary gland of non-lactating cows I. Comparison of proportion of lymphocyte subpopulations from peripheral blood and mammary gland secretions of normal healthy cows and mastitic cows (건유기 유방염 감염우의 유방내 면역저하요인 규명에 관한 연구 I. 유방염 감염우와 정상우의 말초혈액 및 유즙내 림프구 아집단 분포율 비교)

  • Shin, Dong-baek;Park, Yong-ho;Nam, Hyang-mi;Moon, Jin-san;Joo, Yi-seok;Shin, Jong-uk
    • Korean Journal of Veterinary Research
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    • v.36 no.3
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    • pp.635-646
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    • 1996
  • To establish the effective ways to prevent bovine mastitis, the study has been performed to investigate the attributable factors causing down-regulation of immune responses in mammary gland of non-lactating cows. Lymphocytes from peripheral blood and mammary gland secretions(MGS) were obtained from normal healthy cows and mastitic cows, respectively. Cellular immune responses were examined by comparison of proportion of lymphocyte subpopulations using a set of monoclonal antibodies and flow cytometry. The results obtained are as follows. 1. Proportions of peripheral blood lymphocyte subpopulations expressing BoCD2 and BoCD4 molecules were 32.9%, 15.4% in mastitic cows and 43.3%, 28.3% in normal healthy cows, respectively. The ratios of BoCD4 to BoCD8 were 0.76 and 1.47, respectively. 2. Proportions of mammary gland lymphocyte subpopulations expressing BoCD2 and BoCD4 molecules were 18.5%, 8.3% in mastitic cows and 38.2%, 14.2% in normal healthy cows, respectively. The ratios of BoCD4 to BoCD8 were 0.6 and 2.0, respectively. 3. Proportions of T lymphocyte subpopulations from MGS were significantly lower than those from peripheral blood both in mastitic cows and normal healthy cows. However, lymphocyte subpopulations expressing ACT2 and ACT3, which represent activated T suppressor cells, were significantly higher in MGS than those in peripheral blood.

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Clinical Study on 1 Case of Patient with the Lower Limb Flaccidity-syndrome Diagnosed as the Peripheral Neuropathy (말초신경병증으로 진단된 하지위증환자의 치험 1례)

  • Rhim Eun-Kyung;Cho Young-Kee;Moon Mi-Hyun;Lee Jung-Sub;Choi Sung-Yong;Gug Yun-Jai;Kang Sung-Wook;Lee Eon-Jeong;Lee Seong-Kyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.6
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    • pp.1689-1693
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    • 2005
  • In this case, it is considered that the cause of the lower limb Flaccidity-syndrome is the peripheral neuropathy accompanied with inflammation and in oriental medicine, it is understood that the factors such as lung fluid consumption caused by heat-evil, wetness-heat evil cause the lower limb Flaccidity-syndrome. Because the peripheral neuropathy is regarded as a neuropathy with a series of inflammation reaction producing inflammatory neuropeptides such as substance P, prostaglandin ect., in western medicine, nonsteroidal antiinflammation drug;NASID, lidocaine, capsaicine are prescribed to control this neuropathy. In the view of treatment of the lower limb weakness, Wooseul-tangkami is used to remove the wetness-heat evil and we had a electronic acupuncture on the Yangmyung channel(陽明經) selected in The Yellow Emperor's of internal Medicine and also on Panggwang channel(膀胱經) considered as painful lesion. We experineced a case of the lower limb Flaccidity-syndrome diagnosed as the peripheral neuropathy the patient was treated by wooseul-tangkami, a acupuncture on Yangmyung channel and also Panggwang channel and had a significant improvement in gait ability and the range of motion.

Spontaneous Peripheral Ameloblastic Odontoma in a Male Sprague-Dawley Rat

  • Li, Yinghua;Bae, Han-Ik;Kim, Hak-Soo;Kang, Min-Soo;Gong, Bo-Ho;Jung, Won-Hee;Lee, Sranna;Bae, Jin-Sook;Kim, Kap-Ho;Song, Si-Whan;Lee, Jae-Hyun;Kang, Boo-Hyon
    • Toxicological Research
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    • v.33 no.2
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    • pp.141-147
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    • 2017
  • Peripheral ameloblastic odontoma is a rare variant of odontogenic tumor occurring in the extraosseous region. The present report describes a spontaneous tumor in male Sprague-Dawley (SD) rats. The clinically confirmed nodule in the right mandibular region was first observed when the rat was 42 weeks and remained until the terminal sacrifice date when the animal was 48 weeks of age. At necropsy, a well demarcated nodule, approximately $2.5{\times}2.0{\times}2.0cm$, protruded from the ventral area of the right mandible. The nodule was not attached to mandibular bone and was not continuous with the normal teeth. Histopathologically, the tumor was characterized by the simultaneous occurrence of an ameloblastomatous component and composite odontoma-like elements within the same tumor. The epithelial portion formed islands or cords resembling the follicle or plexiform pattern typical of ameloblastoma and was surrounded by mesenchymal tissue. Formation of eosinophilic and basophilic hard tissue matrix (dentin and enamel) resembling odontoma was observed in the center of the tumor. Mitotic figures were rare, and areas of cystic degeneration were present. Immunohistochemically, the epithelial component was positive for cytokeratin AE1/AE3 (CK AE1/AE3), and the mesenchymal component and odontoblast-like cells were positive for vimentin, in the same manner as in normal teeth. On the basis of these findings, the tumor was diagnosed as a peripheral ameloblastic odontoma in an extraosseous mandibular region in a SD rat. In the present study, we report the uncommon spontaneous peripheral ameloblastic odontoma in the SD rat. We also discuss here the morphological characteristics, origin, histochemical, and immunohistochemical features for the diagnosis of this tumor.