• 제목/요약/키워드: Histological laboratory

검색결과 329건 처리시간 0.027초

Plasma Circulating Cell-free Nuclear and Mitochondrial DNA as Potential Biomarkers in the Peripheral Blood of Breast Cancer Patients

  • Mahmoud, Enas H;Fawzy, Amal;Ahmad, Omar K;Ali, Amr M
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권18호
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    • pp.8299-8305
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    • 2016
  • Background: In Egypt, breast cancer is estimated to be the most common cancer among females. It is also a leading cause of cancer-related mortality. Use of circulating cell-free DNA (ccf-DNA) as non-invasive biomarkers is a promising tool for diagnosis and follow-up of breast cancer (BC) patients. Objective: To assess the role of circulating cell free DNA (nuclear and mitochondrial) in diagnosing BC. Materials and Methods: Multiplex real time PCR was used to detect the level of ccf nuclear and mitochondrial DNA in the peripheral blood of 50 breast cancer patients together with 30 patients with benign lesions and 20 healthy controls. Laboratory investigations, histopathological staging and receptor studies were carried out for the cancer group. Receiver operating characteristic curves were used to evaluate the performance of ccf-nDNA and mtDNA. Results: The levels of both nDNA and mtDNA in the cancer group were significantly higher in comparison to the benign and the healthy control group. There was a statistically significant association between nDNA and mtDNA levels and well established prognostic parameters; namely, histological grade, tumour stage, lymph node status andhormonal receptor status. Conclusions: Our data suggests that nuclear and mitochondrial ccf-DNA may be used as non-invasive biomarkers in BC.

Lack of Any Role of Systemic Inflammatory Responses in Predicting Muscle Invasion by Bladder Cancer

  • Solakhan, Mehmet;Demirpence, Ozlem;Orhan, Nuri;Yildirim, Omer Aydin;Guzel, Ebru;Yildirim, Mustafa
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권8호
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    • pp.3735-3737
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    • 2016
  • Background: The purpose of this study is to evaluate if there is a relation between platelet: lymphocyte ratio (PLR) and neutrophil lymphocyte ratio (NLR) values and tumour histology and spread in bladder cancer cases. Materials and Methods: Bladder cancer patients undergoing TUR-M operation, with histopathologically verified diagnosis, followed-up and treated at the Private Medical Park Gaziantep Hospital between 2010 and 2015, have were included in the study. NLR and PLR values were calculated using complete blood count data obtained at the first presentation. Results: A total of 99 patients were included in the study, 7 (7.1%) women and 92 men (92.9%). When NLR was used as the indicator of systemic inflammatory response (SIR), it was determined that, 52 (52.5%) of the patients were SIR negative and 47 (47.5%) SIR positive. No significant relation could be detected between NLR and tumour grade and muscle invasion (p=0.948, p=0.480). When PLR was used as SIR indicator, it was determined that 71 (71.7%) of the patients were found as negative and 28 (28.3%) as positive. No significant relation could be detected between PLR and tumour grade and muscle invasion (p=0.651, p=0.494). Conclusions: In our study we did not detected a relation between tumour histological behavior and PLR and NLR in bladder cancer. However, NLR and PLR are easily calculated, accessible, inexpensive and simple-to-use laboratory data from whole blood counts.

인동소염방(忍冬消炎方)이 만성 비세균성 전립선염 Rat 모델에서 혈액 및 세포조직의 변화에 미치는 영향 (The Effects of IDS(Indongsoyeom-bang) Treatment on the Hematological and Cytopathological Alterations in Non-Bacterial Prostatitis Rat Model)

  • 이종빈;황석연;조충식
    • 혜화의학회지
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    • 제20권1호
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    • pp.91-104
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    • 2011
  • Background : Although chronic non-bacterial prostatitis is increasing, it is hard to treat effectively. In western medicine, antimicrobials drug, ${\alpha}$-adreno-ceptor antagonists, anti-inflammatory drugs, tricyclic antidepressants and anticholinergic agents are used commonly, but chronic prostatitis/chronic pelvic pain syndromes is confusing and frustrating for urologist. IDS(Indongsoyeom-bang) is used in treatment of chronic prostatitis/chronic pelvic pain syndromes. And it is reported that GLS(Gleditsiae spina) and TOF(Toosendan fructus) components of IDS have significant effect on protection of the glandular epithelial cells. Objective : In this study was conducted to investigate the therapeutic effects and action machanism of IDS in the rat model of non-bacterial prostatitis induced by castration and testosterone treatment. Methods : We observed six experimental objects of normal group, control group, testosterone group, and IDS 50 mg/kg, 200mg/kg, 400mg/kg group. Rats were treated with 17 ${\beta}$-estradiol after castration for induction of experimental non-bacterial prostatitis, which is similar to human chronic prostatitis in histophatological profiles. IDS and testosterone were administered as an experimental specimen and a positive control, respectively. The prostates were evaluated by histological parameters including the epithelial score and epithelio-stromal ratio for glandular damage. Also, the prostates were observed by Hematological alterations of WBC, RBC, hemoglobin and platelet. Results : While prostates of control rats revealed severe acinar gland atrophy and stromal proliferation, the rats treated with IDS-50 showed a diminished range of the tissue damage. Epithelial score was improved in IDS than that of the control. The epithelio-stromal ratio was lower in IDS when compared to that of the control. Also, the examination of bloods were not observed hematological change. Conclusion : These finding suggests that IDS may protects the glandular epithelial cells. We concluded that IDS could be a useful remedy agent for treating chronic non-bacterial prostatitis.

Antifibrotic effects of oriental herbs GLM001 on liver cirrhosis induced by bile duct ligation

  • Jeong, Bong-Ho;Kim, Hee-Seok;Kim, Chul;Kim, Jae-Sung;Bae, Heung-Mo;Kwon, In-Sook;Lee, Cheol-Han;JeKal, Seung-Ju;Yu, Byung-Su
    • Advances in Traditional Medicine
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    • 제2권2호
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    • pp.94-100
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    • 2002
  • Liver cirrhosis is characterized by hyperaccumulation of fibrous tissue components and is commonly observed in latter or terminal states of chronic hepatic diseases. In this study, the antifibrotic effects of GLM001 on liver cirrhosis were examined in bile duct ligated rats and patients with hepatic diseases. GLM001 (250 mg/kg rat weight/ day) was administrated to cirrhotic rats for 4 weeks and to humans for 14 weeks. Bile duct ligated rats significantly increased liver collagen content and biochemical markers of hepatic injury. Liver histology showed collagen fiber deposition was increased and the normal architecture was lost with large zones of necrosis being observed frequently. GLM001 administrated rats showed significantly decreased liver collagen content, and accumulation of collagen fiber in histological analysis. Patients, who were treated with GLM001, showed decreases in biochemical markers of hepatic diseases. These results demonstrate the usefulness of GLM001 as an antifibrotic agent for liver cirrhosis.

Alveolar socket preservation with demineralised bovine bone mineral and a collagen matrix

  • Maiorana, Carlo;Poli, Pier Paolo;Deflorian, Matteo;Testori, Tiziano;Mandelli, Federico;Nagursky, Heiner;Vinci, Raffaele
    • Journal of Periodontal and Implant Science
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    • 제47권4호
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    • pp.194-210
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    • 2017
  • Purpose: The aim of the present study was to evaluate the healing of post-extraction sockets following alveolar ridge preservation clinically, radiologically, and histologically. Methods: Overall, 7 extraction sockets in 7 patients were grafted with demineralised bovine bone mineral and covered with a porcine-derived non-crosslinked collagen matrix (CM). Soft tissue healing was clinically evaluated on the basis of a specific healing index. Horizontal and vertical ridge dimensional changes were assessed clinically and radiographically at baseline and 6 months after implant placement. For histological and histomorphometric analysis, bone biopsies were harvested from the augmented sites during implant surgery 6 months after the socket preservation procedure. Results: Clinically, healing proceeded uneventfully in all the sockets. A trend towards reduced horizontal and vertical socket dimensions was observed from baseline to the final examination. The mean width and height of resorption were 1.21 mm (P=0.005) and 0.46 mm (P=0.004), respectively. Histologically, residual xenograft particles ($31.97%{\pm}3.52%$) were surrounded by either newly formed bone ($16.02%{\pm}7.06%$) or connective tissue ($50.67%{\pm}8.42%$) without fibrous encapsulation. The CM underwent a physiological substitution process in favour of well-vascularised collagen-rich connective tissue. Conclusions: Socket preservation using demineralised bovine bone mineral in combination with CM provided stable dimensional changes of the alveolar ridge associated with good reepithelialisation of the soft tissues during a 6-month healing period.

악하부에 발생한 결핵성 경부 임파선염 (A CASE REPORT OF TUBERCULOUS CERVICAL LYMPHADENITIS ON SUBMANDIBULAR AREA)

  • 이승호;김창룡;박문성;김영운;정승룡;이종호;류선열
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제17권4호
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    • pp.456-461
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    • 1995
  • 저자들은 좌측 악하부의 종창을 주소로 내원한 48세 여자 환자에서 임상소견과 방사선 검사 및 절제생검 조직의 병리조직학적 검사를 통해 폐의 일차적 결핵병소 없이 발생한 결핵성 경부 임파선염으로 진단하고 절제생검과 술후 isoniazid, rifampin, ethambutol을 이용한 화학요법을 시행하여 양호한 결과를 치험하였다. 비록 흔하지는 않지만 특히 젊은 성인에서 경부에 종괴가 있을 경우 감별진단시에 결핵성 경부 임파선염을 고려해야 하며, 이 질환은 재발의 가능성이 있기 때문에 주기적인 관찰과 검사가 필요할 것으로 생각된다.

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Benefits of mineralized bone cortical allograft for immediate implant placement in extraction sites: an in vivo study in dogs

  • Orti, Valerie;Bousquet, Philippe;Tramini, Paul;Gaitan, Cesar;Mertens, Brenda;Cuisinier, Frederic
    • Journal of Periodontal and Implant Science
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    • 제46권5호
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    • pp.291-302
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    • 2016
  • Purpose: The aim of the present study was to evaluate the effectiveness of using a mineralized bone cortical allograft (MBCA), with or without a resorbable collagenous membrane derived from bovine pericardium, on alveolar bone remodeling after immediate implant placement in a dog model. Methods: Six mongrel dogs were included. The test and control sites were randomly selected. Four biradicular premolars were extracted from the mandible. In control sites, implants without an allograft or membrane were placed immediately in the fresh extraction sockets. In the test sites, an MBCA was placed to fill the gap between the bone socket wall and implant, with or without a resorbable collagenous membrane. Specimens were collected after 1 and 3 months. The amount of residual particles and new bone quality were evaluated by histomorphometry. Results: Few residual graft particles were observed to be closely embedded in the new bone without any contact with the implant surface. The allograft combined with a resorbable collagen membrane limited the resorption of the buccal wall in height and width. The histological quality of the new bone was equivalent to that of the original bone. The MBCA improved the quality of new bone formation, with few residual particles observed at 3 months. Conclusions: The preliminary results of this animal study indicate a real benefit in obtaining new bone as well as in enhancing osseointegration due to the high resorbability of cortical allograft particles, in comparison to the results of xenografts or other biomaterials (mineralized or demineralized cancellous allografts) that have been presented in the literature. Furthermore, the use of an MBCA combined with a collagen membrane in extraction and immediate implant placement limited the extent of post-extraction resorption.

Alternaria가 원인으로 추정되는 과민성 폐장염 1예 (A Case of Hypersensitivity Pneumonitis by Alternaria as a Suspected Etiology)

  • 도윤경;김연재;강현재;유경술;윤혜진;전재현;이병기;송도영
    • Tuberculosis and Respiratory Diseases
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    • 제54권3호
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    • pp.338-345
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    • 2003
  • 과민성 폐장염은 원인 물질들이 호흡기로 반복적으로 흡입되어 이들 감작된 항원에 의한 면역학적 반응이 일어나 폐실질에 염증성 또는 육아종성 병변이 초래되는 면역학적 염증 질환이다. 저자들은 호흡 곤란을 주소로 내원한 남자 환자에서, 주거지의 실내 벽지에 기생한 진균인 Alternaria가 원인으로 추정된 과민성 폐장염 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

송어를 감염원으로한 광절열두조충 인체감염 (Two Human Cases of Diphyllobothrium latum Infection through Eating Raw Freshwater Trout, Salmo gairdneri)

  • 안영겸;양용석;이규재;정평림
    • 대한의생명과학회지
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    • 제2권2호
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    • pp.283-288
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    • 1996
  • 최근 한국에 있어서 광절열두조충 감염예가 가끔 보고되고 있다. 저자등은 1994년 10월 강원도 춘천시 거주 남녀 부부가 함께 담수산 송어회를 먹고 감염된 2예에 대하여 보고하는 바이다. 구충은 하제로서 Magnesium sulfate 15gm, 구충제 Praziquantel 15mg/kg를 투여하였다. 제1예는 인ㅇㅇ, 43세 남자, 69kg의 건강체였으며, 구충하여 얻은 충체의 길이 6.65m, 폭 8-13mm였다. 제2예는 최ㅇㅇ, 39세 여자, 56kg으로 소화불량, 복부 불쾌감을 호소하였고, 구충하여 얻은 충체는 5.50m, 폭 8-13mm이었다. 2예 모두에서 두부는 검출되지 않았다. 구충하여 얻은 충체의 외관상 형태, 자궁의 선회, 자궁분지(uterine loops)의 수, 생식공의 위치와 절단표본상 음경낭과 저정낭의 형태, 질의 위치, 자궁구의 위치등과 충란을 광학현미경으로 관찰 한 형태, 크기 및 SEM으로 관찰한 표피의 작은 점각(pits)의 유무, 분포 등 형태학적인 특징등으로 Diphyllobothrium latum으로 동정하였다. 이번의 인체 감염은 담수산 송어회가 원인이 된 것으로 믿어지는 예이다.

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A Quantitative Comparison of Fibroblasts, Collagen and Elastic Fiber Densities in the Young and Aged Rat Skin

  • ;;이재형
    • 대한의생명과학회지
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    • 제13권1호
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    • pp.55-60
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    • 2007
  • Computerized image processing and analysis system was used for quantitative assessment of skin tissue components in color histological sections. The purpose of this study was to determine that the changes in the collagen fiber density and elastic fiber density in dermis in the rat skin as aging. And also to determine that the correlation between fibroblast density and collagen fiber density and elastic fiber density in the aged rat skin. Ten weeks old ($130{\sim}150g$) eight and fifty-four weeks old ($300{\sim}350g$) eight female Sprague-Dawley rats were used. The full-thickness skin biopsy specimens were prepared serial sections and stained with hematoxylin and eosin, Masson's trichrome and Verhoeff-van Gieson. The collagen fiber and the elastic fiber were identified using the image analysis processing system and then calculated the collagen fiber density rate and the elastic fiber density rate in the dermis. It also identified fibroblast and calculated fibroblast density in the dermis. By using a Student's t-test, a decrease in the collagen fiber density rate (t=-4.650, P<0.001) and the elastic fiber density rate (t=-6.494, P<0.001) of dermis can be observed in aged rats as compared with the young rats. A Student's t-test showed a significantly less fibroblast density in the aged rats than the young rats (t=-4.497, P<0.001). There were significantly positive correlation between the fibroblast density and the collagen fiber density rate (r=.69, P<0.001) and the elastic fiber density rate (r=.91, P<0.001). These results indicate that the aging may decrease the collagen fiber density and elastic fiber density due to reduced the proliferative and synthetic activity of fibroblast in the dermis.

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