• Title/Summary/Keyword: histological examination

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Effect of Achyrantis Radixs and Ultrasound in Osteoarthritis Rats Articular Cartilage (우슬과 초음파가 퇴행성관절염 백서의 관절 연골에 미치는 영향)

  • Kim, Eun-Jung;Chung, Hun-Woo;Kim, Gye-Yeop
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.2
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    • pp.390-396
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    • 2008
  • Osteoarthritis(OA) diseases are characterized by joint pain, tenderness, limitation of movement, crepitus, occasional effusion, and variable degrees of inflammation without systemic effects. We investigated the effects of Achyrantis radixs cream treatment and low intensity ultrasound in monosodium iodoacetate(MIA) induced experimental osteoarthritis rat. Sprague-Dawley 40 rats of 7-8 weeks, weight $250\;{\pm}\;50$ g were divided into four groups including the control group and ostoarthritis group(30 rats). Histopathological examination, Mankin's score, and immunohistochemical were performed. Histological findings in control group that are similar to those observed in human osteoarthritis, such as disorganization of chondrocytes, erosion and fibrillation of cartilage surface, and subchondral bone exposure. Safranin O-fast green staining revealed that marked diffuse reduction of proteoglycans and chondrocyte treated with MIA. The Mankin's score were closely correlated to the grade of histological findings. The level of Bax and caspase-3 expression decreased experimental groups. This study shows that a Acyranthes Radix cream treatment and low intensity ultrasound exerts a beneficial influence on the severity of chondral lesion in osteoarthritis rats. This treatments could related to a reduced level of chondrocyte apoptosis through anti-apoptotoc capacities of MIA-induced apoptotic protein overexpression.

In vitro and in vivo antibacterial activity of Meliae fructus extract against Helicobacter pylori (Helicobacter pylori에 대한 천련자 추출물의 in vitro와 in vivo 실험에서의 항균활성)

  • Lee, Hyun-A;Kim, Okjin
    • Korean Journal of Veterinary Research
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    • v.52 no.2
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    • pp.105-113
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    • 2012
  • In this study, a medicinal herbal plant, Meliae fructus, was examined and screened for anti-Helicobacter (H.) pylori activity. Seventy percent ethanol was used for herbal extraction. For anti-H. pylori activity screening, inhibitory zone tests as an in vitro assay and in vivo study using a Mongolian gerbil (Meriones unguiculatus) model were performed. Also, the safety of herbal compounds was evaluated by animal study. As a result of inhibitory zone test, Meliae fructus extract demonstrated strong anti-H. pylori activities. Also, as results of in vivo animal studies, Meliae fructus demonstrated strong therapeutic effects against H. pylori infection according to the criteria of histological examination and rapid urease test. As results of the safety study, after 28 days treatment of the Meliae fructus extract, the animals were not detected any grossly and histological changes. These results demonstrate that it can be successfully cured against H. pylori infection and protected from H. pylori-induced pathology with Meliae fructus. It could be a promising native herbal treatment for patients with gastric complaints including gastric ulcer caused by H. pylori.

Effects of Atractylodis Rhizoma Pharmacopuncture on an Acute Gastric Mucosal Lesion Induced by Compound 48/80 in Rats

  • Lee, Yun-Kyu;Kim, Jae-Soo;Lim, Seong-Chul
    • Journal of Pharmacopuncture
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    • v.15 no.1
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    • pp.12-17
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    • 2012
  • Objectives: This study was designed to investigate the protective effects of Atractylodis Rhizoma pharmacopuncture (ARP) against acute gastric mucosal lesions induced by compound 48/80 in rats. Methods: The ARP was injected in Joksamni (ST36) and Jungwan (CV12) 1 hr before treatment with compound 48/80. The animals were sacrificed under anesthesia 3 hrs after treatment with compound 48/80. The stomachs were removed, and the amounts of gastric adherent mucus, gastric mucosal hexosamine, thiobarbituric acid reactive substances (TBARS), xanthine oxidase (XO), and superoxide dismutase (SOD) were measured. Also, histological examination were performed. Results: Gastric adherent mucus, gastric mucosal hexosamine and histological defects of gastric mucosa declined significantly after ARP treatment. Changes in gastric mucosal TBARS were also reduced by ARP treatment, but this result was not statistically significant. ARP treatment did not change the XO and the SOD activities. Conclusions: ARP showed protective effects for acute gastric mucosal lesions induced by compound 48/80 in rats. These results suggest that ARP may have protective effects for gastritis.

Cardiac Calcified Amorphous Tumor in the Left Atrium: A Case Report

  • Lee, Yong Seong;Kim, Jong Duk;Byun, Joung Hun;Kim, Jong Woo;Kim, Kye Hwan;Na, Ji Min;Park, Hyun Oh
    • Journal of Chest Surgery
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    • v.55 no.1
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    • pp.95-97
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    • 2022
  • A cardiac calcified amorphous tumor (CAT) is a rare non-neoplastic mass of the heart with histological characteristics comprising calcification and amorphous fibrous material. Little is known regarding the incidence, symptoms, and therapeutic strategies for CAT. Echocardiography and computed tomography were performed on a 48-year-old man who had a cardiac mass that was accidentally discovered on admission to a local hospital for a fracture related to a trauma that occurred 1 month prior. After surgery, a histological examination resulted in the diagnosis of a cardiac CAT. The patient was discharged without postoperative complications on the 12th day after surgery.

Histological Study on Cutaneous Albinism of Korean Slender Gudgeon Squalidus gracilis majimae from Korea (긴몰개 Squalidus gracilis majimae의 피부백색증에 대한 조직학적 연구)

  • Lee, Yong-Joo;Park, Jong-Young;Oh, Min-Ki
    • Korean Journal of Ichthyology
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    • v.21 no.3
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    • pp.208-213
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    • 2009
  • Histological examination of an individual of the Korean slender gudgeon Squalidus gracilis majimae having cutaneous albinism produced rarely in the wild was made and compared with a normal individual. The external body of the albino was colorless, differing from the normal individual, which has dense brownish black spots over its body surface. To make it clear through histological study, we observed eight skin regions: dorsal, lateral, ventral, upper caudal peduncle, lower caudal peduncle, dorsal fin, anal fin, and the eyes. These regional skins were the same in fundamental structure between albinic and normal gudgeon, but there were significant differences in distribution and development of pigment cells (melanins). In the normal gudgeon, the pigment cells were well developed over the regional skins except on the skin from the ventral region. However, it was confirmed in the albino that the pigment cells were vestigial over the upper regions of the eye and body but absent in the ventral region, lower caudal peduncle, and anal fin.

Effect of herbal extracts on bone regeneration in a rat calvaria defect model and screening system

  • Lee, Dong-Hwan;Kim, Il-Kyu;Cho, Hyun-Young;Seo, Ji-Hoon;Jang, Jun-Min;Kim, Jin
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.44 no.2
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    • pp.79-85
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    • 2018
  • Objectives: The aim of this study was to evaluate the effects of herbal extracts on bone regeneration. Two known samples were screened. Materials and Methods: We previously established a rat calvaria defect model using a combination of collagen scaffold and herbal extracts. An 8 mm diameter trephine bur with a low-speed dental hand piece was used to create a circular calvaria defect. The experimental group was divided into 4 classifications: control, collagen matrix, Danshen with collagen, and Ge Gan with collagen. Animals in each group were sacrificed at 4, 6, 8, and 10 weeks after surgery, and bone regeneration ability was evaluated by histological examination. Results: Results revealed that both Danshen and Ge Gan extracts increased bone formation activity when used with collagen matrix. All groups showed almost the same histological findings until 6 weeks. However, after 6 weeks, bone formation activity proceeded differently in each group. In the experimental groups, new bone formation activity was found continuously up to 10 weeks. In the Danshen and Ge Gan groups, grafted materials were still present until 10 weeks after treatment, as evidenced by foreign body reactions showing multinucleated giant cells in chronic inflammatory vascular connective tissue. Conclusion: Histological analyses showed that Danshen and Ge Gan extractions increased bone formation activity when used in conjunction with collagen matrix.

Incidences of Cervical Intraepithelial Neoplasia 2-3 or Cancer Pathologic Diagnoses in Patients with a High Grade Squamous Intraepithelial Lesion Pap Smear Attending a Colposcopy Clinic at Srinagarind Hospital

  • Ingkapairoj, Navakorn;Luanratanakorn, Sanguanchoke;Chumworathayi, Bandit;Kietpeerakool, Chumnan;Supoken, Amornrat
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.12
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    • pp.6203-6206
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    • 2012
  • The aim of this study was to evaluate the outcomes of women with high-grade squamous intraepithelial lesion (HSIL) smears who had undergone the "see and treat" approach compared to those who underwent a conventional approach. The records of women with HSIL smears undergoing colposcopy at Srinagarind Hospital were reviewed. In those undergoing the conventional approach, the final histological diagnosis was made on the most severe histological results obtained after initial colposcopy. In the "see and treat" group, the final histological diagnosis was made on the examination of LEEP specimens obtained after initial colposcopy. Overtreatment in the see and treat group was defined as the LEEP specimens containing cervical intraepithelial neoplasia (CIN) 1 or less. During the study period, 302 women with HSIL underwent colposcopy. Twenty (6.6%) were nulliparous. One hundred and ninety-four (64.2%) underwent conventional management while the remaining 108 (35.8%) received the see and treat management. The prevalence of underlying high-grade lesions in women undergoing the conventional approach was significantly higher than that observed among women undergoing the see and treat approach (89.2% and 47.2%, respectively, P<0.001). The overtreatment rate in the see and treat group was 52.8%. Multivariate analysis revealed that only parity status was a statistically significant factor for predicting the overtreatment after undergoing the see and treat approach. In conclusion, the overtreatment rate among women undergoing see and treat in this study is notably high and therefore this approach should not be routinely practiced.

Recurrent late seroma after immediate breast reconstruction with latissimus dorsi musculocutaneous flap

  • Bae, Seong Hwan;Lee, Yong Woo;Nam, Su Bong;Lee, So Jeong;Park, Heeseung;Kang, Taewoo
    • Archives of Plastic Surgery
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    • v.47 no.3
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    • pp.267-271
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    • 2020
  • The latissimus dorsi musculocutaneous flap (LDMCF) is widely used for breast reconstruction. However, it has the disadvantage of frequent seroma formation at the donor site, and late seroma has also been reported. The authors report histological findings after the surgical treatment of a late, repeatedly recurrent seroma at 10 years after breast reconstruction with LDMCF. In 2008, a 66-year-old female patient underwent immediate breast reconstruction with LDMCF. In 2015, a late seroma was found at the donor site. After aspiration and drainage, the seroma recurred again in 2018. Total surgical excision of the seroma was performed and bloody-appearing fluid was identified in the capsule. The excised tissue was biopsied. Histological examination revealed no evidence of blood in the fluid, and multinucleated giant cells with amorphous eosinophilic proteinaceous material were identified. The cyst was suggestive of chronic granulomatous inflammation. There was no recurrence at 8 months postoperatively. The patient described herein underwent surgical treatment of late seroma that recurred after immediate breast reconstruction with LDMCF, and histological findings were identified. These results may be helpful for other future studies regarding late seroma after breast reconstruction with LDMCF.

A Study About Analysis Results for Kudoa septempunctata (Myxosporea: Multivalvulida) in Tissue at Olive Flounder, using PCR (polymerase chain reaction) and Histological Methods (PCR (polymerase chain reaction)법과 조직학적 방법을 통한 넙치 조직에서의 Kudoa septempunctata (Myxosporea: Multivalvulida)의 분석에 관한 연구)

  • Do, Jeong Wan;Cho, Miyoung;Jung, Sung Hee;Lee, Nam-Sil
    • Korean Journal of Environmental Biology
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    • v.35 no.4
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    • pp.468-475
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    • 2017
  • This study is for the consideration of the existence tendency of Kudoa septempunctata in olive flounder. In general, muscle has shown a strong PCR positive reaction in spores containing tissues rather than non-containing tissues. However, blood PCR results showed opposed tendency. In various organs of the tested fish containing spores in muscle tissue, heart had shown positive reaction along with muscle at PCR analysis. Muscle fiber necrosis was observed at the histological observation, and this degeneration was common in both samples. The one sample was the PCR positive muscle containing spore and the other was the PCR positive muscle non-containing spore. Both of muscle tissues indicated a positive reaction at ISH (in-situ hybridization) against K. septempunctata.

Korean Guidelines for Diagnosis and Management of Interstitial Lung Diseases: Part 1. Introduction

  • Park, Sung-Woo;Baek, Ae Rin;Lee, Hong Lyeol;Jeong, Sung Whan;Yang, Sei-Hoon;Kim, Yong Hyun;Chung, Man Pyo;Korean Interstitial Lung Diseases Study Group
    • Tuberculosis and Respiratory Diseases
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    • v.82 no.4
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    • pp.269-276
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    • 2019
  • Idiopathic interstitial pneumonia (IIP) is a histologically identifiable pulmonary disease without a known cause that usually infiltrates the lung interstitium. IIP is largely classified into idiopathic pulmonary fibrosis, idiopathic non-specific interstitial pneumonia, respiratory bronchiolitis-interstitial lung disease (ILD), cryptogenic organizing pneumonia, desquamative interstitial pneumonia, and acute interstitial pneumonia. Each of these diseases has a different prognosis and requires specific treatment, and a multidisciplinary approach that combines chest high-resolution computed tomography (HRCT), histological findings, and clinical findings is necessary for their diagnosis. Diagnosis of IIP is made based on clinical presentation, chest HRCT findings, results of pulmonary function tests, and histological findings. For histological diagnosis, video-assisted thoracoscopic biopsy and transbronchial lung biopsy are used. In order to identify ILD associated with connective tissue disease, autoimmune antibody tests may also be necessary. Many biomarkers associated with disease prognosis have been recently discovered, and future research on their clinical significance is necessary. The diagnosis of ILD is difficult because patterns of ILD are both complicated and variable. Therefore, as with other diseases, accurate history taking and meticulous physical examination are crucial.