• Title/Summary/Keyword: Human disease

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Evaluation of Human Papillomavirus Infections in Prostatic Disease: a Cross-Sectional Study in Iran

  • Ghasemian, Ehsan;Monavari, Seyed Hamid Reza;Irajian, Gholam Reza;Nodoshan, Mohammad Reza Jalali;Roudsari, Rouhollah Vahabpour;Yahyapour, Yousef
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.5
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    • pp.3305-3308
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    • 2013
  • Background: The role of inflammation in prostate diseases is suggested by the presence of inflammatory cells within the prostate in benign prostatic hyperplasia (BPH) and prostate cancer (PCa) patients. In addition, bacterial and viral infection may lead to chronic and recurrent inflammation of the prostate. The human papillomaviruses (HPVs) are a family of sexually transmitted viruses which have been implicated in the aetiology of cervical cancer and several other malignancies. This study evaluated the frequency of HPV infection in individuals with prostatic disease in Iran. Materials and Methods: The study included formalin fixed paraffin- embedded tissue samples of 196 primary prostate cases, including 29 PCa and 167 BPH samples. HPV DNA was purified and amplified through MY09/MY11 and GP5+/GP6+ primers with nested PCR. All patients were interviewed using a questionnaire to collect demographic information. Results: Nested PCR showed that HPV DNA was found in 17.2 percent of PCa samples and 4.8 percent of BPH samples (not significant). Conclusions: Our data do not support a significant role of HPV infection in prostatic disease in Iranian patients, but demographic data indicated a probable association between presence of HPV DNA and risk of inflammation in prostate tissue which might lead to prostate carcinoma. Further studies are required to elucidate any roles of HPV infection in prostatic disease.

Effect of Cinnamomum Cassia on Cartilage Protection in Rabbit and Human Articular Cartilage

  • Baek, Yong-Hyeon;Huh, Jeong-Eun;Lee, Jae-Dong;Choi, Do-Young;Park, Dong-Suk
    • The Journal of Korean Medicine
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    • v.28 no.4
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    • pp.148-157
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    • 2007
  • Background & Objective: Articular cartilage is a potential target for drugs designed to inhibit the activity of matrix metalloproteinases (MMPs) to stop or slow the destruction of the proteoglycanand collagen in the cartilage extracellular matrix. The purpose of this study was to investigate the effects of Cinnamomum cassia in inhibiting the release of glycosaminoglycan (GAG), the degradation of collagen, and MMP activity in rabbit and human articular cartilage explants. Methods: The cartilage-protective effects of Cinnamomum cassia were evaluated by using glycosaminoglycan degradation assay, collagen degradation assay, colorimetric analysis of MMP activity, measurement of lactate dehydrogenase activity and histological analysis in rabbit cartilage explants culture. Results: Interleukin-1a (IL-1a) rapidly induced GAG, but collagen was much less readily released from cartilage explants. Cinnamomum cassia significantly inhibited GAG and collagen release in a concentration-dependent manner. Cinnamomum cassia dose-dependently inhibited MMP-1, MMP-3 and MMP-13 activities from IL-1a-treated cartilage explants culture when tested at concentrations ranging from 0.02 to 1 mg/ml. Conclusion : These results indicate that Cinnamomum cassia inhibits the degradation of proteoglycan and collagen through the down regulation of MMP-1, MMP-3 and MMP-13 activities of IL-1a-stimulated rabbit and human articular cartilage explants.

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Multiple functions of human UV DNA repair endonuclease III

  • Jang, Chang-Young;Kim, Joon
    • Journal of Photoscience
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    • v.9 no.2
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    • pp.182-185
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    • 2002
  • There are 3 UV DNA repair endonuclease activities in mammalian cells that cleave UV -irradiated DNA. Interestingly, mammalian UV endonuclease III with MW of 26.7kD has a lyase activity on AP sites. It also cleaves the phosphodiester bond within a cyclobutane pyrimidine dimer. Genomic analysis of human repair endonuclease III gene revealed that this gene has 100% sequence identity with ribosomal protein S3 (rpS3). Therefore, rpS3 seems to function both in translation and in DNA repair. This gene of about 6.1 kb contains 6 introns and 7 exons, and the first and fifth introns of human rpS3 gene contain functional U15 small nucleolar (sno) RNAs which appear to be involved in ribosome assembly. It is to be noted that the column profile of the endonuclease activity of rpS3 appears to be altered in Xeroderma Pigmentosum (XP) group D cells compared to normal cells indicating that this protein is involved in XP disease as well. XP is a human disease characterized by high sensitivity of skin by UV- or sun-light irradiation and by high frequency of developing skin cancers. We also report here that rpS3 protein is involved in other cellular functions.

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Estimating Freshwater Fish Intake for Human Health Risk Assessment Using Korea National Health and Nutrition Examination Survey (국민건강영양조사를 활용한 담수어패류 섭취량 산정: 위해성 평가를 위한 파라메타 도출)

  • Kwak, Jin Il;Oh, Kyungwon;Kweon, Sanghui;An, Youn-Joo
    • Journal of Korean Society on Water Environment
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    • v.29 no.2
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    • pp.165-169
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    • 2013
  • Freshwater fish intake is a critical parameter for deriving water quality criteria and water quality standards for protection of human health based on human health risk assessment. Although the freshwater fish intake parameter should be accurate and representative of Korean fish consumption for the water quality criteria to be reliable, data are limited in Korea and have low reliability. In this study, Korean National Health and Nutrition Examination Survey data from 2008-2010 were analyzed to reevaluate freshwater fish consumption. Based on these results, an average consumption rate of 3.0 g/day per person, a $90^{th}$ percentile consumption rate of 0.0 g/day per person, an average consumption rate of 65.7 g/day per fish consumer, and a $90^{th}$ percentile consumption rate of 153.4 g/day per fish consumer were proposed for derivation of water quality criteria using a conservative approach and various exposure scenarios.

Chemopreventive Effect of Protein Extract of Asterina pectinifera in HT-29 Human Colon Adenocarcinoma Cells

  • Shon Yun-Hee;Nam Kyung-Soo
    • Archives of Pharmacal Research
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    • v.29 no.3
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    • pp.209-212
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    • 2006
  • We investigated the effect of protein extract of Asterina pectinifera on the activity of 4 enzymes that may playa role in adenocarcinoma of the colon: quinone reductase (QR), glutathione Stransferase (GST), ornithine decarboxylase (ODC), and cyclooxygenase (COX)-2. QR and GST activity increased in HT-29 human colon adenocarcinoma cells increased that had been exposed to 4 concentrations of the protein extract (80, 160, 200, and $240{\mu}g/mL$). Additionally, 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced ODC activity decreased significantly in cells exposed to the extract in concentrations of $160{\mu}g/mL$ (p<0.05), $200{\mu}g/mL$ (p<0.005), and $240{\mu}g/mL$ (p<0.005). TPA-induced COX-2 activity also decreased in cells exposed to extract concentrations of 10, 20, 40, and $60{\mu}g/mL$. COX-2 expression was also inhibited in cells exposed to this extract. These results suggest that this protein extract of A pectinifera has chemopreventive activity in HT-29 human colon adenocarcinoma cells, and therefore, may have the potential to function as a chemopreventive agent in human colorectal cancer.

${\ll}$영추(靈樞).오미론(五味論)${\gg}$ 에 대한 연구(硏究)

  • Sin Yeong-Il;Lee Mun-Cheol
    • Journal of Korean Medical classics
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    • v.13 no.1
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    • pp.304-327
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    • 2000
  • This report is closely related to ${\ulcorner}$Simple question Five Qi Anouncement${\lrcorner}$ that you shouldn't take a Hot Taste excessively in case of Qi pathology because a Hot Taste runs to Qi, you shouldn't take a Salty Taste excessively in case of Blood pathology because a Salty Taste runs to Blood, you shouldn't take a Bitter Taste excessively in case of Bone pathology because a Bitter Taste runs to Bone, you shouldn't take a Sweet Taste excessively in case of muscles pathology because a Sweet Taste runs to Muscles, you shouldn't take a Sour Taste excessively in case of Sinews pathology because a Sour Taste runs to Sinews. Also the report mainly describes to relations between Five Tastes and BloodVessel-Organs of human body, to pathological change of a Five Tastes' one-sided diet or taking too much, and to various disease caused by that. And the section is called 'An Essay on Five Tastes', that Five Tastes of food and medicines could make human body either healthy or damaged so you should be careful. This report is divided into two chapter, the first chapter presents to specific diseases according to runnings of Five Tastes, the second chapter shows the pathological process how the human body would change and what kind of disease attacts human body as result of taking Five Tastes. So this section is important remarkably as a viewpoint of food and medicines.

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Experience of Patients Living with Chronic Renal Failure (만성신부전 환자의 체험)

  • 강성례;이병숙
    • Journal of Korean Academy of Nursing
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    • v.31 no.4
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    • pp.525-537
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    • 2001
  • The Purpose of the study was to understand the experience of chronic renal failure patients for the qualified individual care for them. The purpose of this study was to explore the experience of patients living with chronic renal failure and to identify the meaning and structure of their experience. The subjects were four patients, two females and two males. The age range was from 21 to 54. Data was collected with a few in-depth interviews by the authors until the data was fully saturated. The framework and methodology of this study was based on Parse′s "Human Becoming methodology," an existential phenomenological research methodology. The findings of this study were as follows. Three experience structures of chronic renal failure patients were : 1. Sufferings and conflicts originated in the frustration caused by uncurable disease. 2. Dependence upon God and significant others with complex emotions. 3. Acceptance of sufferings, emerging hope for serving people, and gratitude for living. In conclusion the experience of chronic renal failure patients could be described from the findings (three structures) as "Experiencing the sufferings, conflicts originated in the frustration caused by uncurable disease, dependence upon God and significant others with complex emotion, acceptance of the suffering and hope for serving people, and gratitude for living." The three structures of the lived experience of patients with chronic renal failure, the findings of this study, could be explained by the three concepts of "Theory of Human Becoming," the first structure could be explained with values, the second with revealing-concealing, and the third with transforming.

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Breast Sparganosis Presenting with a Painless Breast Lump: Report of Two Cases

  • Oh, Moon Young;Kim, Kyoung-Eun;Kim, Min Jung;Chu, Ajung;Lee, Jong Yoon;Park, Jeong Hwan;Kim, Jongjin;Hwang, Ki-Tae
    • Parasites, Hosts and Diseases
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    • v.57 no.2
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    • pp.179-184
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    • 2019
  • Sparganosis is a parasitic infestation caused by sparganum, a plerocercoid tapeworm larva of the genus Spirometra. Since the first case of human sparganosis reported in 1908, sparganosis has been a global disease, and is common in China, Japan, and Southeast Asian countries. Consumption of raw snakes, frogs, fish, or drinking contaminated beverages are sources of human infections. Human sparganosis usually manifests in subcutaneous fat in areas such as the abdomen, genitourinary tract, and limbs. Breast sparganosis cases are rare, representing less than 2% of total cases of human infections. Complete surgical extraction of the sparganum is the treatment of choice. Because of the rarity of the disease, clinical suspicion is vital to reach the diagnosis of breast sparganosis. Here we report 2 rare cases of breast sparganosis presenting with a painless breast lump, both treated with surgical excision and sparganum extraction.

Principles of Chemical Risk Assessment: The ATSDR Perspective

  • Johnson Barry L.
    • 대한예방의학회:학술대회논문집
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    • 1994.02a
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    • pp.405-411
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    • 1994
  • Hazardous wastes released into the general environment are of concern to the public and to public health authorities. In response to this concern, the Comprehensive Environmental Response, Compensation, and Liability Act, as amended (commonly called Superfund), was enacted in 1980 to provide a framework for environmental, public health, and legal actions concerning uncontrolled releases of hazardous substances. The Agency for Toxic Substances and Disease Registry (ATSDR) was created by Superfund to address the public health issues of hazardous wastes in the community environment. Two key Agency programs, Public Health Assessments and Toxicological Profiles, are designed to assess the risk to human health of exposures to hazardous substances that migrate from waste sites or through emergency releases (e.g., chemical spills). The Agency's public health assessment is a structured process that permits ATSDR to identify which waste sites or other point sources require traditional public health actions (e.g.. human exposure studies, health studies, registries, health surveillance, health advisories). The ATSDR qualitative public health assessment complements the U.S. Environmental Protection Agency's quantitative risk assessment. For Superfund purposes, both assessments are sitespecific. ATSDR's toxicological profiles are prepared for priority hazardous substances found most frequently at Superfund sites. Each profile presents the current toxicologic and human health effects information about the substance being profiled. Each profile also contains Minimal Risk Levels (MRLs), a type of risk assessment value. This paper covers ATSDR's experience in conducting public health assessments and developing MRLs, and it relates this experience to recommendations on how to improve chemical risk assessments.

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Electrophysiological insights with brain organoid models: a brief review

  • Rian Kang;Soomin Park;Saewoon Shin;Gyusoo Bak;Jong-Chan Park
    • BMB Reports
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    • v.57 no.7
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    • pp.311-317
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    • 2024
  • Brain organoid is a three-dimensional (3D) tissue derived from stem cells such as induced pluripotent stem cells (iPSCs) embryonic stem cells (ESCs) that reflect real human brain structure. It replicates the complexity and development of the human brain, enabling studies of the human brain in vitro. With emerging technologies, its application is various, including disease modeling and drug screening. A variety of experimental methods have been used to study structural and molecular characteristics of brain organoids. However, electrophysiological analysis is necessary to understand their functional characteristics and complexity. Although electrophysiological approaches have rapidly advanced for monolayered cells, there are some limitations in studying electrophysiological and neural network characteristics due to the lack of 3D characteristics. Herein, electrophysiological measurement and analytical methods related to neural complexity and 3D characteristics of brain organoids are reviewed. Overall, electrophysiological understanding of brain organoids allows us to overcome limitations of monolayer in vitro cell culture models, providing deep insights into the neural network complex of the real human brain and new ways of disease modeling.