• Title/Summary/Keyword: Pathological results

Search Result 1,644, Processing Time 0.029 seconds

Inhibitory Effect of Coicis Semen Composition on Inflammatory Responses in the Collagen-induced Arthritis Mouse Model

  • Moon, Jung-Won;Oh, Min-Suck
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.20 no.5
    • /
    • pp.1311-1314
    • /
    • 2006
  • This study was peformed to investigate possible mechanisms underlying possible effect of Coicis Semen composition (CSC) on inflammatory diseases using in vivo model of RA in the mice. Results are summarized as follows. In production of inflammatory cytokines, INF-${\gamma}$ in the spleen and IL-6 in the serum were decreased by CSC treatment. TNF-${\alpha}$ in serum was significantly decreased, IL-4 in the spleen was significantly increased by CSC treatment. In production of rheumatoid factors, IgM and IgG were significantly decreased by CSC treatment. The present data suggest that CSC treatment can improve pathological damage by CIA. So we expect that CSC should be used as a effective drugs for not only rheumatoid arthritis but also another autoimmune disease. Therefore we have to survey continuously in looking for the effective substance and mechanism in the future.

The Blood-brain Barrier Permeability of Taurine in Senescence-accelerated Mouse and Normal Mouse (ICR) (노화촉진모델마우스(SAM)와 정상 마우스(ICR)에서 타우린의 혈액-뇌 관문 투과성의 비교)

  • 황인원;이나영;강영숙
    • Biomolecules & Therapeutics
    • /
    • v.10 no.4
    • /
    • pp.218-223
    • /
    • 2002
  • This study compared the blood-brain barrier permeability of [$^3H$] taurine in senescence-accelerated mouse (SAM) and normal mouse with common carotid artery perfusion (CCAP) method and intravenous injection technique to establish a possible relation between aging and changes in tissue levels of taurine. The SAM strains show senescence acceleration and age-associated pathological phenotypes similar to geriatric disorders seen in humans. In the result of this experiments, the plasma clearance of [$^3H$]taurine in SAM was almost comparable with that of normal mice by intravenous injection technique, but the brain volume of distribution ($V_{D brain}$) of [$^3H$]taurine in SAM by CCAP method reduced by 85% compared with that in normal mice. These results suggest that aging may have an effect on the brain transport activity of taurine in disease state model animal.

Classification of cardiotocograms using random forest classifier and selection of important features from cardiotocogram signal

  • Arif, Muhammad
    • Biomaterials and Biomechanics in Bioengineering
    • /
    • v.2 no.3
    • /
    • pp.173-183
    • /
    • 2015
  • In obstetrics, cardiotocography is a procedure to record the fetal heartbeat and the uterine contractions usually during the last trimester of pregnancy. It helps to monitor patterns associated with the fetal activity and to detect the pathologies. In this paper, random forest classifier is used to classify normal, suspicious and pathological patterns based on the features extracted from the cardiotocograms. The results showed that random forest classifier can detect these classes successfully with overall classification accuracy of 93.6%. Moreover, important features are identified to reduce the feature space. It is found that using seven important features, similar classification accuracy can be achieved by random forest classifier (93.3%).

Acid sphingomyelinase-mediated blood-brain barrier disruption in aging

  • Park, Min Hee;Jin, Hee Kyung;Bae, Jae-sung
    • BMB Reports
    • /
    • v.52 no.2
    • /
    • pp.111-112
    • /
    • 2019
  • Although many studies have reported that the breakdown of the blood-brain barrier (BBB) represents one of the major pathological changes in aging, the mechanism underlying this process remains relatively unexplored. In this study, we described that acid sphingomyelinase (ASM) derived from endothelial cells plays a critical role in BBB disruption in aging. ASM levels were elevated in the brain endothelium and plasma of aged humans and mice, resulting in BBB leakage through an increase in caveolae-mediated transcytosis. Moreover, ASM caused damage to the caveolae-cytoskeleton via protein phosphatase 1-mediated ezrin/radixin/moesin dephosphorylation in primary mouse brain endothelial cells. Mice overexpressing brain endothelial cell-specific ASM exhibited acceleration of BBB impairment and neuronal dysfunction. However, genetic inhibition and endothelial specific knock-down of ASM in mice improved BBB disruption and neurocognitive impairment during aging. Results of this study revealed a novel role of ASM in the regulation of BBB integrity and neuronal function in aging, thus highlighting the potential of ASM as a new therapeutic target for anti-aging.

A Case Report of a Patient of Basal Ganglia Calcification Suggestive of Fahr's Disease Treated with Korean Medicinal Treatment (Fahr disease가 의심되는 기저핵 석회화 환자에 대한 한방 처치 1례)

  • Choi, Hyun-jeong;Ha, Jeong-been;Lew, Jae-hwan
    • The Journal of Internal Korean Medicine
    • /
    • v.40 no.2
    • /
    • pp.279-285
    • /
    • 2019
  • Objective: This study presents the case of a 74-year-old male patient with basal ganglia calcification suggestive of Fahr's disease and the effectiveness of Korean medicinal treatment. Methods: We treated this patient with traditional Korean medicine and measured symptom severity using the Numeral Rating Scale (NRS). Results: After treatment, most pathological symptoms had decreased, and there was a gradual decline in the NRS of patient's symptoms. Conclusions: Korean medicinal treatment can be a solution for patients with basal ganglia calcification.

Pathogenesis of Minimal Change Nephrotic Syndrome: A Review of the Underlying Molecular Mechanisms

  • Yang, Eun Mi
    • Childhood Kidney Diseases
    • /
    • v.23 no.1
    • /
    • pp.1-6
    • /
    • 2019
  • Nephrotic syndrome (NS) is the most common glomerular disorder in childhood, and a vast majority of cases are idiopathic. The precise cause of this common childhood disease is not fully elucidated despite significant advancements in our understanding of podocyte biology. Idiopathic NS has been considered "a disorder of T-cell function" mediated by a circulating factor that alters podocyte function resulting in massive proteinuria since the last four decades. Several circulatory factors released from T-cells are considered to be involved in pathophysiology of NS; however, a single presumptive factor has not been defined yet. Extended evidence obtained by advances in the pathobiology of podocytes has implicated podocytes as critical regulator of glomerular protein filtration and podocytopathy. The candidate molecules as pathological mediators of steroid-dependent NS are CD80 (also known as B7-1), hemopexin, and angiopoietin-like 4. The "two-hit" hypothesis proposes that the expression of CD80 on podocytes and ineffective inhibition of podocyte CD80 due to regulatory T-cell dysfunction or impaired autoregulation by podocytes results in NS. Recent studies suggest that not only T cells but also other immune cells and podocytes are involved in the pathogenesis of MCNS.

A Literary Analysis on the Fifth Chapter of the 『Maijing』 (맥경(脈經) 권5의 문헌적 고찰)

  • Jung, Seunghan;Kim, Kiwang
    • Journal of Korean Medical classics
    • /
    • v.32 no.4
    • /
    • pp.57-66
    • /
    • 2019
  • Objectives : This paper seeks to contribute to restoring ancient literature related to Bianque through literature analysis of the fifth volume of "Maijing(脈經)". Methods : Literature referenced in the fifth volume of "Maijing(脈經)" which are "Huangdineijing(黃帝內經)", "Nanjing(難經)" among others were examined. Results & Conclusions : The fifth volume of "Maijing(脈經)" cites "Huangdineijing(黃帝內經)", "Nanjing(難經)", "Bixi Zhenfa(敝昔診法)", "Ni Shun Wu Se Mai Zang Yan Jing Shen(逆順五色脈藏驗精神)" etc. Based on the question and answer format of the text, it seems the fifth volume of "Maijing(脈經)" is a collective of three different lines of medical texts. It shows traces of Bianque's Zangfu theory where the Stomach is considered as one of the Five Zangs instead of the Spleen. It also contains the diagnostic method of symptom expression time based on distance between sites of pathological expression. Moreover, description of the number of pulses during one cycle of breathing (inhale/exhale) indicates that the early theories of the Bianque School has been preserved.

Heart Attack Prediction using Neural Network and Different Online Learning Methods

  • Antar, Rayana Khaled;ALotaibi, Shouq Talal;AlGhamdi, Manal
    • International Journal of Computer Science & Network Security
    • /
    • v.21 no.6
    • /
    • pp.77-88
    • /
    • 2021
  • Heart Failure represents a critical pathological case that is challenging to predict and discover at an early age, with a notable increase in morbidity and mortality. Machine Learning and Neural Network techniques play a crucial role in predicting heart attacks, diseases and more. These techniques give valuable perspectives for clinicians who may then adjust their diagnosis for each individual patient. This paper evaluated neural network models for heart attacks predictions. Several online learning methods were investigated to automatically and accurately predict heart attacks. The UCI dataset was used in this work to train and evaluate First Order and Second Order Online Learning methods; namely Backpropagation, Delta bar Delta, Levenberg Marquardt and QuickProp learning methods. An optimizer technique was also used to minimize the random noise in the database. A regularization concept was employed to further improve the generalization of the model. Results show that a three layers' NN model with a Backpropagation algorithm and Nadam optimizer achieved a promising accuracy for the heart attach prediction tasks.

The role of immunomodulatory metabolites in shaping the inflammatory response of macrophages

  • Doyoung, Park;Gyumin, Lim;Sung-Jin, Yoon;Hyon-Seung, Yi;Dong Wook, Choi
    • BMB Reports
    • /
    • v.55 no.11
    • /
    • pp.519-527
    • /
    • 2022
  • Macrophage activation has long been implicated in a myriad of human pathophysiology, particularly in the context of the dysregulated capacities of an unleashing intracellular or/and extracellular inflammatory response. A growing number of studies have functionally coupled the macrophages' inflammatory capacities with dynamic metabolic reprogramming which occurs during activation, albeit the results have been mostly interpreted through classic metabolism point of view; macrophages take advantage of the rewired metabolism as a source of energy and for biosynthetic precursors. However, a specific subset of metabolic products, namely immune-modulatory metabolites, has recently emerged as significant regulatory signals which control inflammatory responses in macrophages and the relevant extracellular milieu. In this review, we introduce recently highlighted immuno-modulatory metabolites, with the aim of understanding their physiological and pathological relevance in the macrophage inflammatory response.

A case of hepatic anisakidosis caused by Anisakis pegreffii mimicking liver cancer

  • Minoru Yamada;Fumi Murakoshi;Hisashi Ikoma;Osamu Inamori;Akio Yanagisawa;Eiichi Konishi
    • Parasites, Hosts and Diseases
    • /
    • v.61 no.3
    • /
    • pp.292-297
    • /
    • 2023
  • Extra-gastrointestinal anisakidosis is rare. We herein report an Anisakis pegreffii infection in a patient with hepatic anisakidosis diagnosed based on its molecular identification. A 71-year-old male patient had a hepatic tumor presenting as a low-density area of 20 mm in diameter in segment 6 of the liver on abdominal ultrasonography, computed tomography, and magnetic resonance imaging. The surgically resected pathological specimen revealed a necrotizing eosinophilic granuloma containing nematode larvae, possibly an Anisakis larva. Molecular and phylogenetic analysis demonstrated Anisakis larvae belonging to A. pegreffii. The present results will help identify and characterize unknown Anisakis species in histological sections.