• Title/Summary/Keyword: Nature of Medicine

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Naringenin modulates GABA mediated response in a sex-dependent manner in substantia gelatinosa neurons of trigeminal subnucleus caudalis in immature mice

  • Seon Ah Park;Thao Thi Phuong Nguyen;Soo Joung Park;Seong Kyu Han
    • The Korean Journal of Physiology and Pharmacology
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    • v.28 no.1
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    • pp.73-81
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    • 2024
  • The substantia gelatinosa (SG) within the trigeminal subnucleus caudalis (Vc) is recognized as a pivotal site of integrating and modulating afferent fibers carrying orofacial nociceptive information. Although naringenin (4',5,7-thrihydroxyflavanone), a natural bioflavonoid, has been proven to possess various biological effects in the central nervous system (CNS), the activity of naringenin at the orofacial nociceptive site has not been reported yet. In this study, we explored the influence of naringenin on GABA response in SG neurons of Vc using whole-cell patch-clamp technique. The application of GABA in a bath induced two forms of GABA responses: slow and fast. Naringenin enhanced both amplitude and area under curve (AUC) of GABA-mediated responses in 57% (12/21) of tested neurons while decreasing both parameters in 33% (7/21) of neurons. The enhancing or suppressing effect of naringenin on GABA response have been observed, with enhancement occurring when the GABA response was slow, and suppression when it was fast. Furthermore, both the enhancement of slower GABA responses and the suppression of faster GABA responses by naringenin were concentration dependent. Interestingly, the nature of GABA response was also found to be sex-dependent. A majority of SG neurons from juvenile female mice exhibited slower GABA responses, whereas those from juvenile males predominantly displayed faster GABA responses. Taken together, this study indicates that naringenin plays a partial role in modulating orofacial nociception and may hold promise as a therapeutic target for treating orofacial pain, with effects that vary according to sex.

A Study on the Roentgenologic and Pathological Characteristics of the Pulmonary Tuberculous Lesions (절제폐(切除肺)에서 본 폐결핵병소(肺結核病巢)의 X선상(線像)의 특징(特徵)에 관(關)한 연구(硏究))

  • Cho, Kwang Hyun
    • Journal of Chest Surgery
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    • v.9 no.2
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    • pp.175-186
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    • 1976
  • The cellular change of the pulmonary tuberculous lesions may be divided into two groups,exudative and proliferative form by their course and fate. In the most cases, the patients usually have very much complex type of cellular changes. Therefore, the shadows of the chest films in pulmonary tuberculosis are also much variable in nature. And Daniel said that knowledge of the pathology of tuberculosis and an appreciation of the method of progression and healing are essential to proper interpretation of the films. Author, having reviewed 33 cases of resected tuberculous lung obtained in N.M.T.H. for one year from Oct. '75 to Sep. '76 by surgical managements, classified the Pathological findings such as: 1) caseation only, 2) tuberculoma, 3) atelectatic lung 4) cavitary lesion and 5) atelectasis with cavity, and examined the relationship between the roentgenological characteristics of the chest films and the pathological process of tuberculous lesions of the resected lungs, The result were obtained as follows. (1) Tuberculoma was commonly appeared in $S_2$ segment in right and $S_6$ segment in left. (2) Atelectasis and destroyed lung were more commonly appeared in left lung than right, and their containing rate of cavity was 82%. (3) Cavities were mostly appeared in $S_1$ and $S_2$ segments of both lung and the appearance-rate of cavity on $S_6$ segment was higher in left than right. And among the cavitary lesions of the resected lung, cavity was not seen in the preoperative chest films in 22%. (4) The configuration, thickness and sharpness of the walls of cavities, which revealed the cavitary shadows in the preoperative chest films, were mostly depended on the degree of increased collagenous fiber of the wall, existence of perifocalitis, and more or less of the caseous masses on the inner surface of the cavity wall.

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A Study on The Etiology of Wu You-ke(吳又可)'s Epidemic(溫疫) Theory (오우가(吳又可) 온역학설(溫疫學說)의 병인관(病因觀)에 대한 연구)

  • Eun, Seok-Min
    • Journal of Korean Medical classics
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    • v.20 no.4
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    • pp.251-265
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    • 2007
  • This study is a research on the etiology in Wu Youke's wenyi theory. In regard to the etiology of epidemic disease that had been spread on a very large scale at that time, Wu Youke denied the traditional theory which urged the irregular change of climate as the cause of epidemic disease, and proposed the concept of 'zaqi' which was considered by him to be something that could be the real cause of epidemic disease. And He treated the wenyi disease as something that has the same meaning with wenbing, so his concept on wenbing was basically the thing that treats 'zaqi' as the fundamental cause of wenbing and treats the concept of 'wen(溫)' as an environmental cause that could help activate the virulence of 'zaqi'. Such concept like this was the thing somewhat different from the traditional etiological theory that considers the change of climate as the principal cause of waigan(外感)-disease, and it must for the most part have been originated from the experience of Wu Youke himself. But this study, in contrast, based on the thing he denied the traditional theory on the irregular change of climate, has been done in the point of view that fundamental concept of his wenyi theory such as 'zaqi' was not only originated from his clinical experience but also from the influence of paradigm shift in the natural philosophy of that time. There had been so much change in cosmology and natural philosophy from the fundamental basis at that time, and the the most principal concept of it was that there always exists irregular faces in the change of nature. Such concept like this got into its stride from about 17th century, and it was expressed in the form of the severe criticism against the traditional natural philosophy. In regard to this, this study has outlined the academic thought of the leading scholars who made a significant progress in such a paradigm shift, and it includes the scholars like Wang Tingxiang, Wang Fuzhi, Hu Wei, Huang Zongxi, who played their role in the time of the latter period of Ming dynasty and the former period of Qing dynasty.

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Characteristics of Nursing Performance based on the Expertise among ICU Nurses (숙련성에 따른 중환자실 간호사들의 업무수행 유형)

  • Yi, Myung-Sun;Oh, Sang-Eun;Eom, Mi-Ran;Kim, Hyun-Sook;Cho, Kyoul-Ja;Choi, Jung-Sook;Lee, Kyung-Sook
    • Korean Journal of Adult Nursing
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    • v.14 no.2
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    • pp.296-305
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    • 2002
  • Purpose: The purpose of this research was to describe how nurses in intensive care units (ICU) work. Method: A total of 18 ICU nurses participated in the research. The data was collected through individual in-depth interviews and analyzed by grounded theory method using NUDIST 4.0 software program. Results: Three different patterns regarding nursing performance among ICU nurses were identified. These are 1) nursing performance of nurses who perform excellently, 2) nursing performance of nurses who do not perform well because of their lack of experience, and 3) nursing performance of nurses who do not perform well in spite of their good years of experience. These three different nursing performances were described in terms of seven different categories; 1) assessing and monitoring nursing problems, 2) clinical decision making, 3) interpersonal relationships, 4) holistic care, 5) technical skills, 6) problem solving, 7) working independently and creatively. This study also identified two intervening factors that influenced the advancement of their expertise. Conclusion: The results of this study might help nurse managers in developing continuing educational programs for inexperienced nurses or those nurses not performing well to become experts by a deeper understanding of the nature of nursing performance and the factors that influence nursing performance in ICU settings.

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A Study on the Organization and the Contents of Sikgamboncho(食鑑本草) (비백웅(費伯雄) 『식감본초(食鑑本草)』의 편제와 내용에 관한 연구(硏究))

  • Hong, Jin Im
    • Journal of Korean Medical classics
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    • v.30 no.2
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    • pp.45-57
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    • 2017
  • Objectives : There exists a number of books that deal with curing diseases with foods. This includes Shennongbencaojing from Han Dynasty era, Zanyin's Shiloaoxingan and Mengxi's Shilaobencao from Tang Dynasty era, Husihui's Yinshanzhengyao from Won Dynasty era, and Feiboxiong's Sikgamboncho from Qing Dynasty era. This paper aims to delve into the food treatment revealed in Sikgamboncho, which is the latest book in the preceeding list, and studied its differences when compared to other medical books that deal with food treatment methods. Methods : The format and contents of Feiboxiong's Sikgamboncho were studied. For its format, Shilaoaoxingan, Yinshanzhengyao, Shikryochanyo, and Donguibogam were used to compare their formats with that of Sikgamboncho in order to discern the unique characteristics found in the book. For its contents, the paper studied food ingredients and food treatment separately, and then studied the historical significance of Feiboxiong's Sikgamboncho. Results : Sikgamboncho categorizes 12 types of grain, 22 types of vegetables, 7 types of cucumis calyx, 27 types of fruit, 9 types of flavor, 4 types of bird, 4 types of animal, 10 types of fish with scales, 4 types of carapace, and 2 types of worm. The book explains each ingredient's harvest period, its nature, potency, and taboos. The food treatment section explains 74 types of treatments that are divided between the wind, cold, summer heat, dampness, dryness category and the qi, blood phlegm, deficiency, and excess category. Each treatment contains its potency and recipe. Conclusions : Feiboxiong underlined the importance of ingredient through placing significance even to the order of ingredients. Out of the total 74 food treatments, 25 treatments were dedicated to deal with weakness. Feiboxiong attempted to prevent human body from becoming weak, which reflects his emphasis on the importance of food and wellness.

Comparison of Histopathology, Serology and PCR for the Diagnosis of Malignant Catarrhal Fever (Malignant Catarrhal Fever의 병리조직학적 진단과 혈청학적 진단 및 PCR 진단법의 비교)

  • Kim, Ok-jin;Crawford, Timothy B.
    • Korean Journal of Veterinary Research
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    • v.43 no.3
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    • pp.471-476
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    • 2003
  • Malignant catarrhal fever (MCF) is a systemic disease of ruminants caused by ovine herpesvirus 2 (OvHV-2). OvHV-2 is a gamma herpesvirus, which induces frequent latent infection and often difficult to detect its antigens and even specific nucleic acids because of its low viral copies in the infected tissues. Histopathology, serology and polymerase chain reaction (PCR) were compared for the diagnosis of MCF using 10 bison infected with OvHV-2. Histopathological diagnosis was performed using the criteria which was based upon the pathognomic lesions. Serological diagnosis was conducted using its serum with competitive ELISA for the detection of antibodies of OvHV-2. Also, the nest PCR was performed with peripheral blood leukocytes for the detection of OvHV-2-specific DNAs. Primers 556 and 775 were used for the primary amplification, and primers 556 and 555 were used for the secondary amplification. As the results, positive cases were 6 by histopahology, 9 by serology and 10 by PCR. As comparing with other diagnostic methods, PCR was found to be more sensitive than histopathology and serology. The recent development of molecular diagnostic assays has provided powerful tools for investigating how viruses survive in nature. Development of PCR specific for viruses has dramatically improved the accuracy of diagnosis of viruses in clinically infected animals. Furthermore, amplification of viral genomic material by nest PCR represents the most sensitive method for the detection of viruses and might be detected successfully even though very low viral DNA copies. So, it could be used as the first choice for the detection of viral DNAs with low copies such as the status of latent infection. However, it has also some limitation of application like as false negative results by PCR inhibitors and false positive results by contamination. The results of this study suggest that the use of molecular biological methods like PCR may increase the accuracy for the diagnosis of infectious diseases. However, in diagnostic laboratory, it is recommended that PCR assay must be conducted with other diagnostic methods for more reliable diagnosis.

Knowledge Level and Compliance of Health Behavior in Patients with Myocardial Infarction (심근 경색증 환자의 질병관련 지식과 건강행위 이행)

  • Jeong Hye-Sun;Yoo Yang-Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.8 no.3
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    • pp.334-345
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    • 2001
  • Purpose : This study purposes to examine the knowledge level and compliance of health behavior in patients with myocardial infarction to develope a cardiac rehabilitation program. Method: The subjects consisted of 72 patients with myocardial infarction, hospitalized at three university-affiliated hospitals. The data were collected by interviewing their subjects using a questionnaire and reviewing the medical records from September 15, 1999 to July 31, 2000. Data were analyzed using the SAS program for Windows version 6.12. Results: 1 The average knowledge score of the patients was 19.7 and the average compliance score was 53.9. 2. Knowledge scores were highest in the items of avoiding overeating and taking medicine at prescribed dosage, and lowest in the item of when to avoid sexual activity. 3. Knowledge level were highest on domains of exercise & daily activities, and risk factors and followed by diet. medication. and nature of disease. 4. Those who had higher education, or were living with a spouse were significantly higher in knowledge score. 5. Compliance score was highest in the item of smoking cessation and lowest in the item of measuring heart rate regularly. 6. Compliance score was highest on domain of smoking cessation and followed by diet, exercise, others, and managing mental stress. 7. Female patients had significantly higher compliance scores of health behavior on domain of diet than male patients. 8. The knowledge score was positively correlated to compliance of health behaviors. Conclusion: According to the above findings, it can be concluded that intensive nursing care and education should be provided to the patients who have lower education or are living without a spouse. Also, nursing intervention should be developed to increase compliance of managing mental stress and doing regular exorcise.

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Cognitive Investigation Study of Patients Admitted for Cosmetic Surgery: Information, Expectations, and Consent for Treatment

  • Barone, Mauro;Cogliandro, Annalisa;La Monaca, Giuseppe;Tambone, Vittoradolfo;Persichetti, Paolo
    • Archives of Plastic Surgery
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    • v.42 no.1
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    • pp.46-51
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    • 2015
  • Background In all branches of medicine, it is the surgeon's responsibility to provide the patient with accurate information before surgery. This is especially important in cosmetic surgery because the surgeon must focus on the aesthetic results desired by the patient. Methods An experimental protocol was developed based on an original questionnaire given to 72 patients. The nature of the responses, the patients' motivation and expectations, the degree of patient awareness regarding the planned operation, and the patients' perceptions of the purpose of the required consent for cosmetic surgery were all analyzed using Fisher's exact test. Results Candidates for abdominal wall surgery had significantly more preoperative psychological problems than their counterparts did (P=0.035). A significantly different percentage of patients under 40 years of age compared to those over 40 years of age searched for additional sources of information prior to the operation (P=0.046). Only 30% of patients with a lower educational background stated that the preoperative information had been adequate, whereas 92% of subjects with secondary schooling or a postsecondary degree felt that the information was sufficient (P=0.001). A statistically significant difference was also present between patients according to their educational background regarding expected improvements in their quality of life postoperatively (P=0.008). Conclusions This study suggests that patients require more attention in presurgical consultations and that clear communication should be prioritized to ensure that the surgeon understands the patient's expectations.

Study on Traditional Folk Wine of Korea -In the Southern Region of Korea-Chulla-do, Kyungsang-do and Cheju-do- (한국의 민속주에 관한 고찰(II) -전라도.경상도.제주도 지방을 중심으로-)

  • Yoon, Sook-Ja;Park, Duck-Hoon
    • Journal of the Korean Society of Food Culture
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    • v.9 no.4
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    • pp.355-367
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    • 1994
  • This study aims at exploring the nature of the traditional Korean wines brewed throughout the Southern Region of Korea-Chulla-do, Kyungsang-do and Cheju-do describing their varieties and brewing methods and also comparing the similarities and differences of their features. When compared with the wines produced in the Central Region, the Southern varieties are very fastidious and complex in their brewing methods, which in turn show a wide range of diversity. First of all, all the 29 kinds of wines investigated, not a single one shows any resemblance to any one of the remaining, each exhibiting peculiar and particular characteristic features of its own. Especially, the distilling methods demonstrate very complex processes. Secondly, the majority of the Southern spirits are made from grains, added with fragrant flavor of pine tree, wormwood, chrysanthemum leaves and other medicine herbs such as Chinese matrimony vine and tankui. Thirdly, they are brewed with yeast made from wheat into kodupap(steamed rice) type of spirits, emerging as in the form of blended liquor. Fourthly, in brewing, different fermenting temperature and duration are required. Typewise, the temperature required for the basic spirit is $15{\sim}20^{\circ}C\;or\;25{\sim}30^{\circ}C$ : in the case of blended secondarily fermented liquor, from the minimum of $0{\sim}5^{\circ}C$ to the maximum of $75{\sim}80^{\circ}C$. The brewing duration is $3{\sim}5$ days for the basic spirits. In some cases, from the minimum of 3 days to the maximum of 100 days are consumed for fermenting. Fifthly, the wine extraction gadgets are yongsu (wine strainer), the sieve, filter paper, Korean traditional paper, the utilization of which implies that the brewers endeavor to observe and preserve the traditional and indigenous methods of wine making.

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A study of 'Asari Herba should not exceed Jeon(錢, Qian, 3.0 gram)' ('세신불가전(細辛不過錢)'에 관한 연구)

  • Park, Pil-Sang;Kang, Ok-Hwa;Lee, Go-Hoon;Park, Shin-Young;Seong, Man-Jun;Kwon, Dong-Yeul
    • The Korea Journal of Herbology
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    • v.22 no.1
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    • pp.49-52
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    • 2007
  • Objectives: Asari Herba comes from the dried perennial herbaceous plant, Asarum sieboldii $M_{IQ}$., A. heterotropides $F_R$. SCHMIDT var. mandshuricum($M_{AXIM}$) $K_{ITAG}$. and A sieboldii $M_{IQ}$ var. seoulense $N_{AKAI}$., family Aristolochiaceae. This medicine is pungent in flavor(味辛), warm in nature(性溫), mildly toxic and affects the lung, kidney, and heart meridians. It is able to repel wind dispel cold(祛風散寒), remove the obstruction of the nose(宣通鼻竅), relieve pain(止痛) and warm the lungs to remove the retention of fluids(溫肺化飮). In a clinic it is prescribed for exterior syndrome of wine-cold type(風寒表證) manifested as headache and general pain. It is indicated for headaches, toothaches, bisyndrome of wind-cold-dampness type(風寒濕痺), etc. For many generations medical books have warned doctors that the dosage of Asari Herba should not be excessive because the pungent flavor has the effect of dispersing exopathogens from superficies of the body. The principle, 'Asari Herba should not exceed Jeon(錢, Qian, 3.0 gram)' is still considered to be relevant. Methods : Extensive research of several ancient medical texts has lead to the following conclusion. Results : The statement 'Asari Herba should not exceed Jeon' is a dosage which is used to prepare single recipe and powder. Conclusion : The definition of Jeon is not 1 Jeon(3.0 gram), but 1 Jeonbi(錢匕, Qianbi, 1.0 gram), moreover, the usage, collection. and refinement process are not in accordance with the contents of the ancient medical texts. A deeper study of Asari Herba's dosage in the future is expected to have interesting results.

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