• Title/Summary/Keyword: AcuD

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AcuD Gene Knockout Attenuates the Virulence of Talaromyces marneffei in a Zebrafish Model

  • Feng, Jiao;Chen, Zhiwen;He, Liya;Xiao, Xing;Chen, Chunmei;Chu, Jieming;Mylonakis, Eleftherios;Xi, Liyan
    • Mycobiology
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    • v.47 no.2
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    • pp.207-216
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    • 2019
  • Talaromyces marneffei is the only dimorphic species in its genus and causes a fatal systemic mycosis named talaromycosis. Our previous study indicated that knockdown of AcuD gene (encodes isocitrate lyase of glyoxylate bypass) of T. marneffei by RNA interference approach attenuated the virulence of T. marneffei, while the virulence of the AcuD knockout strains was not studied. In this study, T. marneffei-zebrafish infection model was successfully established through hindbrain microinjection with different amounts of T. marneffei yeast cells. After co-incubated at $28^{\circ}C$, the increasing T. marneffei inoculum doses result in greater larval mortality; and hyphae generation might be one virulence factor involved in T. marneffei-zebrafish infection. Moreover, the results demonstrated that the virulence of the ${\Delta}AcuD$ was significantly attenuated in this Zebrafish infection model.

Biomimetic Copper Complex Containing Polymer Modified Electrode for Electrocatalytic Reduction of Oxygen

  • Saravanakumar, D.;Nagarale, Rajaram Krishna;Jirimali, Harish Chandra;Lee, Jong Myung;Song, Jieun;Lee, Junghyun;Shin, Woonsup
    • Journal of Electrochemical Science and Technology
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    • v.7 no.4
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    • pp.298-305
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    • 2016
  • The development of non-precious metal based electrocatalysts is highly desired for the oxygen reduction reaction (ORR) as alternates to noble metal based ORR electrocatalysts. Herein, we report mononulcear copper(II) complex $[CuLbpy]ClO_4$ (L=4-[(2-hydroxyphenylimino)methyl]benzoic acid) containing poly(allylamine.HCl) polymer (PAlACuLbpy) as an electrocatalyst for oxygen reduction reaction (ORR). PAlACuLbpy was mixed with poly(acrylic acid) and tetraethylortho silicate to prepare a composite and then deposited on the screen printed electrode surface. The modified electrode (PAlACuLbpy/PCE) is highly stable and showed a quasi-reversible redox behavior with $E_{1/2}=-0.2V$ vs. Ag/AgCl(3 M KCl) in 0.1 M phosphate buffer at pH 7 under argon atmosphere. PAlACuLbpy/PCE exhibited a remarkable ORR activity with an onset potential of -0.1 V vs Ag/AgCl in 0.1 M PB (pH 7) in the presence of oxygen. The kinetics for ORR was studied by rotating disk voltammetry in neutral aqueous medium and the results indicated that the number of electrons involving in the ORR is four and the conversion products are water and hydrogen peroxide.

The Study on Acute°§Subacute Toxicity of Juglandis Semen Herbal-acupuncture(JsD) (호도약침(胡桃藥鍼)의 급성(急性) 아급성(亞急性) 독성(毒性)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kang, Kye-Sung;Kwon, Gi-Rok
    • Journal of Pharmacopuncture
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    • v.4 no.3
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    • pp.85-92
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    • 2001
  • Objective : This study was purposed to investigate the acute. subacute toxicity of Herbal acupuncture with Juglandis Semen(JsD) in mice and rats. Methods & Results: Balb/c mice were injected intraperitoneally with JsD for $LD_{50}$ and acute toxicity test Sprague-Dawley rats were injected intraperitoneally with JsD for subacute toxicity test. Results: The results obtained were summarized as follows; 1. LD50 was uncountable as could not find the expired of treat group. 2. The clinical signs and body weight changes of mice treated with 0.2cc, 0.4cc JsD were not affected during the acute toxicity test. 3. In acute toxicity test of serum biochemical values of mice, total protein was increased in treat-l group, compared with normal group, and total cholesterol was increased in treat-2 group, compared with normal group.(P<0.05) 4. In subacute toxicity test, main toxic syndrome was not found. 5. The body weight was decreased in treat-2 group, compared with normal group and relative liver weight was decreased in treat-1, 2 group, compared with normal group in subacute toxicity test.(P<0.05) 6. In subacute toxicity test, WBC, MCH, MCHC were decreased in treat-2 group and RBC was increased in treat-2 group, compared with normal group in complete blood count test.(P<0.05) 7. In subacute toxicity test, treat groups were not changed serum biochemical values of rats, compared with normal group.(P<0.05) Conclusions: According to the results, Herbal-acupuncture with Juglandis Semen caused no toxicity.

The Occurrence of Laminarionema elsbetiae (Phaeophyceae) on Rhodymenia pseudopalmata (Rhodophyta) from the Patagonian Coasts of Argentina: Characteristics of the Relationship in Natural and Experimental Infections, and Morphology of the Epi-endophyte in Unialgal Free Cultures

  • Gauna, M. Cecilia;Parodi, Elisa R.;Caceres, Eduardo J.
    • ALGAE
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    • v.24 no.4
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    • pp.249-256
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    • 2009
  • The occurrence of Laminarionema elsbetiae (Ectocarpaceae, Phaeophyceae), as epi-endophyte of Rhodymenia pseudopalmata (Rhodymeniales, Rhodophyta), described from Santa Isabel, Rawson, Argentina. L. elsbetiae grows in the host tissues forming epi-endophytic relationship in the epidermal, cortical and medullar layers. Epiphytic thalli of L. elsbetiae were unbranched filaments emerging from hostis surface. Reproductive structures of L. elsbetiae on the host were absent. On the contrary, free cultured individuals formed different reproductive structures. Macrozoosporangia containing a single large motile zoospore originated from vegetative cells, they were conical to cylindrical in shape, 30-50 ${\mu}m$ in length and 18-20 ${\mu}m$ in wide. Uniseriate plurilocular zoosporangia were cylindrical shape, 40 ${\mu}m$ in length and 10-13 ${\mu}m$ in wide. Sexual fusion was not seen. In mixed cultures of L. elsbetiae with R. pseudopalmata fronds, L. elsbetiae infected the host, grew as in natural host and, formed macrosporangia between host subcortical cells. Gametophytes of L. elsbetiae were filaments with diffuse growth, branched with a branch pattern alternate or opposite. Gametangia were plurilocular, uni or biseriate and lateral. When mature they contained 2 to 6 isogametes. The presence L. elsbetiae on R. pseudopalmata could be defined as an epi-endophytic relationship. The percentage of infection of R. pseudopalmata thalli by L. elsbetiae was 34%.A25% of the infected thalli presented a low, non-symptomatic level infection, whereas a 62% and a 13% of them exhibited respectively moderate and high indexes of infection.

A Case Report on Improvement Mental Health of the Disabled by Acupuncture and Moxibustion (침구치료로 개선된 장애인의 정신건강 증례보고)

  • Koh, Won Joon;Park, Sang Kyun
    • Korean Journal of Acupuncture
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    • v.39 no.1
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    • pp.16-21
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    • 2022
  • The purpose of this study is to report the case mental health of people with disabilities has improved through visit treatment at public health centers. From October 26, 2021 to January 04, 2022, 6 visits were conducted and Patient Health Questionnaire-9 (PHQ-9), Beck Depression Inventory (BDI), Korean version of Center for Epidemiological Studies-Depression Scale (K-CES-D), Visual Analog Scale (VAS), Euro Qol-Visual Analogue Scale (EQ-VAS), Modified Barthel Index (MBI) were used to check changes. After Korean Medicine treatments such as acupuncture, electroacupuncture, electromoxibustion, PHQ-9 decreased from 18 to 8, BDI decreased from 22 to 15, K-CES-D decreased from 42 to 21. And VAS decreased from 85 to 50, EQ-VAS increased from 30 to 50. But There was no change in the MBI. Confirmation of improvement in mental health-related indicators of disabled patients through Korean Medicine treatments.

Study on the Thermography of Dysmenorreic women (월경통 환자의 체열분포에 대한 연구 (소음인, 태음인을 대상으로))

  • Kim, M.J.;Lee, I.S.;Kim, J.W.
    • Journal of Oriental Medical Thermology
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    • v.2 no.1
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    • pp.11-16
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    • 2003
  • Purpose D.I.T.I. can be used to diagnose the dysmenorrhea and prove the Oriental Medical Theory and the Sasang Constitutional Medicine concerning Dysmenorrhea. According to the Sasang Constitutional Medicine, we chose 39 dysmenorrhea patients (Soeumin 26 Patients, Taeumin 13 Patients) and expremented D.I.T.I. to find difference of chilliness and fever in the upper part of body and the lower part of body. Methods We expremented 39 dysmenorrhea patients chosena expremental group from Apr 1. 2002 to May 30, 2002. We diagnosed the constitution by Q.S.C.C. and selected six acu-points CV-17, CV-12, CV-4, G-21, B-15 and B-23. To appraise difference of temperature according to constitution we compared skin temperature of front to back. Result Mean Absolute Value of ${\Delta}T$ in body (front and back) shows significant difference. Totally the temperature of front is higher than the temperature of back. the temperature of Soeumin is higher than the temperature of Taeumin in whole. Conciusion Especially the upper abdomen area(CV-17) shows high temperature in 39 dysmenorrhea patients, the lower abdomen area (CV-4) of Soeumin shows lower temperature relatively.

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A Development of an Acupoints Education Table using 3D Technology and Augmented Reality (경혈 교육을 위한 3D 및 증강현실 기술을 활용한 한의학 통합교육 테이블 개발)

  • Yang, SeungJeong;Ryu, ChangJu;Kim, SangCheol;Kim, JaeSouk
    • Korean Journal of Acupuncture
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    • v.38 no.4
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    • pp.267-274
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    • 2021
  • Objectives : Acupoints education is important in that it can determine the clinical competency of Korean Medicine Doctors (KMDs). Accordingly, we aimed to develop a practical simulator for acupoints education, acupoints training, acupoints practice, and acupoints evaluation. Methods : Korean Medicine (KM) SMART Table can be divided into hardware, server and components, and is organically linked. We develop KM SMART Table that combines the hardware of a human-sized table with a UHD display capable of multi-touch in two cases and software that can teach acupoints. We make Augmented Reality (AR) contents linked with KM SMART Table contents and develop applications that can use contents using mobile devices. By developing an AR image tracking module to react with KM SMART Table, it enables acupoint learning according to the mobile device platform and human anatomy. Results : The current system is a prototype where some 3D technology has been implemented, but the AR function will be produced later. New learning using 3D and AR will be required during acupoints education and acupoints practice. It will be used a lot in OSCE (Objective Structured Clinical Examination) practices for strengthening the competency of KMDs, and it will be of great help not only in KM education as a unique simulator of KM, but also in the practice of acupuncture and chuna for musculoskeletal diseases. Conclusions : The KM SMART Table is a technology that combines 3D and AR to learn acupoints, and to conduct acupoints OSCE practice, and we suggest that it can be usefully used for educational evaluation.

Anti-Oxidant and Anti-Aging Effect of Supercritical Fluid Extraction of Seed of Euphorbia lathyris L. as a Pharmacopuncture Material (한방약침소재로써 속수자 초임계추출물의 항산화 및 항노화에 대한 연구)

  • Kwak, Byeong Mun;Kim, Tae-Jun;Kim, Ee-Hwa
    • Korean Journal of Acupuncture
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    • v.37 no.2
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    • pp.88-96
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    • 2020
  • Objectives : The purpose of this study was to investigate the anti-oxidant and anti-aging effect of the seed of Euphorbia lathyris L. extracted by supercritical CO2. Methods : Human dermal fibroblast cells dosed with the extract from Euphorbia lathyris L. were harvested and the intracellular proteome was analyzed to examine the expression of proteins related collagen synthesis pathway, metalloproteinases (MMPs), extracellular matrix (ECM)-cell interaction, cytokines, and antioxidant enzymes by 2-dimensional gel electrophoresis. Results : Fatty acid analysis of the extract from Euphorbia lathyris L. showed oleic acid was 84% and linoleic acid was 4.1%. Antioxidative effect was about 53% by beta carotene bleaching assay. In 2-dimensional polyacrylamide gel electrophoresis (2-D PAGE) analysis, fifteen protein changes in five mechanisms which were collagen synthesis pathway, MMPs, ECM-cell interaction, cytokines, and antioxidant enzymes were analyzed. Conclusions : This study suggests the supercritical extraction from the seed of Euphorbia lathyris L. could be used as anti-oxidant substances for pharmacopuncture.

A Case Report of Cold Sensitivity of Hand by Korean Medical Treatment with Hominis Placenta Pharmacopunture at LI4 and LI10 (합곡, 수삼리 자하거약침요법을 병행한 복합 한방치료의 수부냉증 치험례)

  • Jang, Seung Hoon;Kim, Ki-Choon;Yun, Jung Hun;Yim, Yun-Kyoung
    • Korean Journal of Acupuncture
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    • v.31 no.4
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    • pp.240-246
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    • 2014
  • Objectives : The purpose of this study is to report the clinical effects of Korean medical treatment with Hominis Placenta Pharmacopunture(HPP) on cold hypersensitivity of hands. Methods : A 46-year-old female patient whose chief complaint was cold hypersensitivity of hands was treated with Placenta Pharmacopunture at LI4 and LI10, ten times for a month. Acupuncture and herbal medicine were added depending on the symptoms. Digital Infrared Thermal Imaging(D.I.T.I) was taken and Visual Analog Scale(VAS) was examined before and after each treatment. Results : After the treatments, the symptoms were improved. Conclusions : DITI and VAS showed that the patient's cold hypersensitivity of hands was improved after Korean medical treatment with Hominis Placenta Pharmacopuncture.

Combination of MSAT and Korean Medicine for Managing Foot Drop Due to Lumbar Disc Herniation: Case Report (족하수 환자의 복합 한의진료 경과 및 삶의 질 변화: 증례보고)

  • Park, Ji-won;Jeong, Wu-Jin;Huh, Hyo-Seung;Hong, Hae-Won;Koo, Ji-eun
    • Korean Journal of Acupuncture
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    • v.38 no.3
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    • pp.189-195
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    • 2021
  • Foot drop due to lumbar disc herniation is perceived to be an indication for surgery. A 44-year-old male presented with motor deficit in left ankle dorsiflexion along with radiating pain and paraesthesia. Motion Style Acupuncture Therapy (MSAT) was administered on the left side every other day. Acupuncture and Chuna were performed daily. Herbal medicine was taken 3 times a day. His symptoms rapidly improved throughout treatment, verified by decreased Numeric Rating Scale (NRS), Oswestry Disability Index (ODI), increased 5-level EuroQol-5 Dimension (EQ-5D-5L) scores, and improved motor grades. We suggest that a combination of MSAT with traditional Korean medicine could be a favorable option for foot drop in LDH patients in terms of rapid pain reduction and the improvement of quality of life.