• Title/Summary/Keyword: Immune deficiency

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Drosophila Gut Immune Pathway Suppresses Host Development-Promoting Effects of Acetic Acid Bacteria

  • Jaegeun Lee;Xinge Song;Bom Hyun;Che Ok Jeon;Seogang Hyun
    • Molecules and Cells
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    • v.46 no.10
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    • pp.637-653
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    • 2023
  • The physiology of most organisms, including Drosophila, is heavily influenced by their interactions with certain types of commensal bacteria. Acetobacter and Lactobacillus, two of the most representative Drosophila commensal bacteria, have stimulatory effects on host larval development and growth. However, how these effects are related to host immune activity remains largely unknown. Here, we show that the Drosophila development-promoting effects of commensal bacteria are suppressed by host immune activity. Mono-association of germ-free Drosophila larvae with Acetobacter pomorum stimulated larval development, which was accelerated when host immune deficiency (IMD) pathway genes were mutated. This phenomenon was not observed in the case of mono-association with Lactobacillus plantarum. Moreover, the mutation of Toll pathway, which constitutes the other branch of the Drosophila immune pathway, did not accelerate A. pomorum-stimulated larval development. The mechanism of action of the IMD pathway-dependent effects of A. pomorum did not appear to involve previously known host mechanisms and bacterial metabolites such as gut peptidase expression, acetic acid, and thiamine, but appeared to involve larval serum proteins. These findings may shed light on the interaction between the beneficial effects of commensal bacteria and host immune activity.

Study on Clinical Diseases of Yang Deficiency Pattern (양허증(陽虛證)의 임상적 질환 범위에 대한 고찰)

  • Park, Mi Sun;Ki, Yeong Mok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.27 no.2
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    • pp.153-166
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    • 2013
  • Yang deficiency pattern is a representative syndrome differentiation. This article is a study on to which categories of modern diseases yang deficiency is assigned by reference to modern clinical papers and the meaning of yang deficiency interpreted with a perspective of Korean Medicine and a modern perspective. Yang deficiency, yang qi deficiency, lack of yang qi and yang qi debilitation are the words found in "Nei Ching" and yang qi can be interpreted as something to warm, drive and arouse. Zhangzhongjing considered recovery or loss of Yang as the key to life in "Shanghanlun". Danxi proposed "Yang being liable to hyperactivity, Yin being insufficient" and emphasized pathological ministerial fire of Yang exuberance rather than physiological ministerial fire of Yang deficiency. Zhangjingyue proposed "Yang not being in excess, Yin being often deficient" and understood growth and decline of yin qi are all led by yang qi and put emphasis on true yin in addition to yang qi. Diseases of yang deficiency pattern are related with decline of metabolic level, hypofunction of internal secretion, disorder of immune function, disorder of automatic nerve system, sympathetic nerve inhibition, metabolic disorder of microelements, increase of cGMP, change of microcirculation, low speed of blood stream, kidney malfunction. Diseases related with kidney are sterility, polycystic ovary syndrome, spinal stenosis, edema, renal failure, IgA nephropathy, erectile dysfunction, nephritis, prostatitis, benign prostatic hyperplasia, decrease of adrenal cortical hormone by nephrotic syndrome, myelodysplastic syndrome. Disease related with heart are heart failure, arrhythmia, cardiomyopathy, atherosclerosis heart disease, hypertension, hyperlipidemia, pulmonary heart disease. Diseases related with spleen are irritable bowel syndrome, ulcerative colitis. Diseases related with liver are hypothyroidism, liver cirrhosis ascites, hepatitis B, chronic hepatitis, hepatic diabetes. Diseases related with lung are allergic rhinitis, cough variant asthma, bronchial asthma, pulmonary emphysema. And diabetes mellitus, metabolic syndrome, aplastic anemia, headache, encephalatrophy, Alzheimer's disease are also related with yang deficiency.

The Role of Nrf2 in Cellular Innate Immune Response to Inflammatory Injury

  • Kim, Ji-Young;Surh, Young-Joon
    • Toxicological Research
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    • v.25 no.4
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    • pp.159-173
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    • 2009
  • Nuclear factor erythroid derived 2-related factor-2 (Nrf2) is a master transcription regulator of antioxidant and cytoprotective proteins that mediate cellular defense against oxidative and inflammatory stresses. Disruption of cellular stress response by Nrf2 deficiency causes enhanced susceptibility to infection and related inflammatory diseases as a consequence of exacerbated immune-mediated hypersensitivity and autoimmunity. The cellular defense capacity potentiated by Nrf2 activation appears to balance the population of $CD4^+$ and $CD8^+$ of lymph node cells for proper innate immune responses. Nrf2 can negatively regulate the activation of pro-inflammatory signaling molecules such as p38 MAPK, NF-${\kappa}B$, and AP-1. Nrf2 subsequently functions to inhibit the production of pro-inflammatory mediators including cytokines, chemokines, cell adhesion molecules, matrix metalloproteinases, COX-2 and iNOS. Although not clearly elucidated, the antioxidative function of genes targeted by Nrf2 may cooperatively regulate the innate immune response and also repress the expression of pro-inflammatory mediators.

Preliminary Study for Development of Pattern Identification Tool of Chronic Cough (만성기침 변증도구 개발을 위한 기초연구)

  • Kim, Kwan-il;Shin, Seung-won;Lee, Na-la;Lee, Beom-joon;Jung, Hee-jae;Jung, Sung-ki;Lee, Jun-hee
    • The Journal of Internal Korean Medicine
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    • v.36 no.1
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    • pp.22-39
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    • 2015
  • Objectives : The aim of this study was to develop a standard tool of pattern identification for chronic cough, which will be applied to clinical research. Methods : The items and structures of the instrument were based on reviews of textbooks and published literature. The advisor committee on this study consisted of 11 Korean respiratory internal medicine professors, one clinical fellow, and five clinicians with 10 years of experience. The questionnaire, which includes the signs and symptoms of chronic cough, was studied by the delphi method. Delphi examination was carried out via email, through evaluating the importance of symptoms included in each pattern. Results : We divided the pattern identification of chronic cough into five patterns: Wind-Cold, Phlegm-Turbidity, Liver-Fire, Lung Deficiency, and Kidney Yang Deficiency. By the Delphi method and a score evaluation, 38 items were chosen for pattern identification of chronic cough. Conclusions : Through this study, we created a Korean instrument for the pattern identification tool for chronic cough. We expect to apply this tool to subsequent research as its validity and reliability are further confirmed.

Colonic cryptococcosis presenting with chronic diarrhea in a person with advanced human immunodeficiency virus disease: a case report

  • Oh, Hyunjoo;Kim, Misun;Yoo, Jeong Rae;Boo, Sun-Jin;Heo, Sang Taek
    • Journal of Medicine and Life Science
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    • v.19 no.1
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    • pp.26-29
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    • 2022
  • Cryptococcus neoformans infection usually occurs in patients with advanced human immunodeficiency virus (HIV) infection or with a CD4 T lymphocyte count of <100 cells/µL. Pulmonary and central nervous system infections are the most frequently encountered forms of cryptococcosis; however, colonic cryptococcosis is uncommon. We describe the case of a 41-year-old antiretroviral-naïve man with HIV infection diagnosed eight years prior and intermittent diarrhea for 4 months who presented to the emergency department with a 1-day history of low-grade fever and confusion. Brain magnetic resonance imaging and cerebrospinal fluid analysis revealed normal results; however, he was diagnosed with Pneumocystis jirovecii pneumonia based on chest computed tomography and bronchoalveolar lavage analysis. Trimethoprim-sulfamethoxazole administration was initiated followed by antiretroviral treatment. Although his condition gradually improved, he developed fever and abdominal discomfort, and the diarrhea worsened. Endoscopy revealed a small ulcer in the distal transverse colon. Histopathological examination of a colon tissue sample revealed cryptococcal infection. He improved substantially during liposomal amphotericin B and fluconazole treatment. We encountered a rare case of colonic cryptococcosis that caused chronic diarrhea in a patient with advanced HIV infection. Colonic cryptococcosis should be considered when patients with acquired immune deficiency syndrome present with gastrointestinal symptoms.

Treatment of Third Degree Burn due to Low-Temperature Contact Burn on Acquired Immune Deficiency Syndrome (AIDS) Patient: Low-Temperature Burn on AIDS Patient (후천성면역결핍증후군 환자에서의 저온 접촉 화상에 의한 삼도 화상의 치료)

  • Hong, Seok Won;Choi, Hwan Jun;Kim, Jun Hyuk;Lee, Da Woon
    • Journal of the Korean Burn Society
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    • v.22 no.2
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    • pp.21-24
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    • 2019
  • Incidence of low-temperature contact burn by use of an electric pad is increased recently, especially in depressed sensory. Acquired immune deficiency syndrome patient using antiretroviral agent suffered with sensory depression as side effect. There are many limitations in wounds treatment of these patients. These patients are vulnerable to infection due to their weak immunity, so it is necessary to keep them in a state of isolation when a wound occurs. We report a case of a third degree burn by electric pad with a surface area of approximately 5% of the body surface of a patient who underwent a sensory depression, which is a side effect of antiretroviral drugs used for treatment in patients with AIDS. In this regard, we report the case with literature review, which is safely recovered using negative-pressure wound therapy and split-thickness skin graft.

Effects of Zn Intake on Immune Responses in High Fat Diet-induced Obese Rats (아연 섭취 수준이 고지방 식이로 유도된 비만쥐의 면역 기능에 미치는 영향)

  • 김현숙;승정자
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.2
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    • pp.464-470
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    • 1999
  • The purpose of this study was to investigate the effect of zinc intake on immune responses in high fat diet induced obese rats. The immune status was assessed by the measurements of immunoglobulins (IgG, A, and M) production by SRBC(sheep red blood cell) with mitogen in vivo. The delayed type hypersensitivity(DTH) response was also measured as an index of cell mediated immunity. The re sults are summarized as follows : 1) There were no significant differences in the feed intake, weight gain and feed efficiency ratio of obese rats by the different dietary zinc levels. 2) White blood cell (WBC) counts were significantly affected as the dietary zinc levels decreased. The capacity of Ig M production in obese rats was significantly higher in normal zinc group than that of low and high zinc group. Cell mediated immune response evaluated by means of DTH testing has also been found to be highly impaired by zinc deficiency and overload. From these observations, it was suggested that adequate levels of zinc may promote the immune function of obese individuals. The relationship and its functional role of the zinc in obesity remains to be further studied.

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A Case of Esophageal Candidiasis in a Healthy Child (건강한 소아에서 발생한 식도 칸디다증 1예)

  • Jo, Joseph;Park, Sin Ae;Choi, Kyung Dan
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.8 no.2
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    • pp.269-274
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    • 2005
  • Esophageal candidiasis is an opportunistic infection, often reported in patients who have acquired immune deficiency syndrome (AIDS), a neoplastic disease, or undergoing protracted antibiotic therapy. Impaired cell mediated immunity was often considered as the major predisposing factor in patients of esophageal mucosal colonization of Candida spp. However, it is increasingly reported that the occurrence of esophageal candidiasis with no underlying disease or immune suppression. We have experienced a case of esophageal candidiasis in a 15-year-old girl who was immunologically normal and have no underlying disease and whose main symptoms were epigastric and retrosternal pain with dysphagia. This case suggests the possibilities of candidal infections in children without predisposing factors such as immune compromised conditions, so it will be needed to differentiate the esophageal candidiasis among healthy children with symptoms of odynophagia and dysphagia.

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Qi-deficiency in the Patients with Allergic Disorders

  • Yei, Young Chul;Jin, Chul;Choi, Won Woo;Hwang, Jae Woong;Jang, Hyeung Jin;Kim, Bum Joon;Lim, Kook Jin;Kwon, Seungwon;Cho, Seung Yeon;Park, Seong Uk;Park, Jung Mi;Ko, Chang Nam;Moon, Sang Kwan;Cho, Ki Ho;Jung, Woo Sang
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.16 no.1
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    • pp.19-24
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    • 2015
  • ■ Introduction Allergy refers a hypersensitive immune response to the various environmental factors and Qi is considered as vit al energy to defend oneself from environments in Traditional Chinese Medicine. Therefore, this study was performed to assess the relationship between allergy and Qi-deficiency ■ Methods We enrolled the subjects with allergic disorders and the healthy controls without allergic disorders. We got the information on the general characteristics, and the score of Qi-deficiency from all of the subjects, and measured their total Immunoglobulin E(IgE) level. ■ Results There were one hundred forty three subjects with allergic disorders and 211 of the control. The educational level, total IgE, and the scores of the Qi-deficiency were higher in the allergy group than in the control. ■ Conclusion Allergic subjects tend to have more severe Qi-deficiency. This could suggest the clinical effectiveness of some herbal medicines for Qi-deficiency on allergic disorders.

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