• Title/Summary/Keyword: Skin/pathology

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Effect of Inclusion of Hard Versus Soft Wheat Bran with Different Particle Size on Diet Digestibility, Growth Performance and Carcass Traits of Fattening Rabbits

  • Laudadio, V.;Dario, M.;Addonizio, F.;Tufarelli, Vincenzo
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.10
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    • pp.1377-1385
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    • 2009
  • Effect of inclusion of hard vs. soft wheat bran with different particle size on diet digestibility, growth performance and some slaughter traits was evaluated in fattening rabbits. Four isonitrogenous and isocaloric diets were used according to the origin of wheat bran (hard (HWB) - Triticum durum - and soft (SWB) - Triticum aestivum) combined with wheat bran particle size sieved by 2 mm (fine: 2) or by 8 mm (coarse: 8) in a bifactorial (2${\times}$2) study. A growth trial was conducted to measure the effect of treatments on performance in one hundred and twenty New Zealand White${\times}$Californian rabbits fed experimental diets from 50 to 87 days of age. Faecal apparent digestibility was determined within the last week in twenty animals per diet. Digestibility of nutrients was higher (p<0.05) in the diet containing HWB2, except for crude protein, ether extract and ash, than fine and coarse soft wheat bran diets. Final live weight, feed intake and feed consumption of rabbits on the diet with fine hard wheat bran were higher and resulted in greater daily weight gains (p<0.01) than for animals on the other diets. The slaughter yield and percentage value of organs were not significantly (p>0.05) affected by the diets fed; however, the diet containing fine hard wheat bran led to lower (p<0.05) percentages of skin, abdominal fat and carcass drip loss than the other dietary treatments. It is concluded that fine hard wheat bran can be better included in the diet than soft wheat bran to maximize growth performance without affecting carcass traits of fattening rabbits.

Comparison of Topical Agents for Bactericidal and Wound Healing Effect in Pseudomonas aeruginosa-infected Wound (Pseudomonas aeruginosa 감염창상에 사용되는 국소제제들의 항균효과 및 창상치유 효과의 비교)

  • Min, Kyung Hee;Hong, Sung Hee;Kim, Eun Kyung
    • Archives of Plastic Surgery
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    • v.34 no.5
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    • pp.551-556
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    • 2007
  • Purpose: Pseudomonas aeruginosa is an etiologic agent in serious wound infection. Pseudomonas aeruginosa infection is problematic because this organism is resistant to many antimicrobial drugs. The purpose of this study was to compare the bactericidal effect of commonly used topical agents and their effect on wound healing. Methods: Pseudomonas aeruginosa-infected full-thickness skin defect was developed on the mouse to compare 3 commonly used topical agents-Betadine, 2% Gentamicin solution and 0.3% Acetic acid with the control group. Wound size change, bacterial colony counts and histologic findings of each groups were analyzed. Results: The wound size decreased in all treated groups as compared with the control group. However, there was no statistical difference. Gentamicin solution group was showed the lowest bacterial colony count and statistically significant difference compared with the control group(p=0.032). Other treated groups were also effective against Pseudomonas aeruginosa, but not different statistically. Histologic findings revealed that epithelialization, granulation tissue formation and microvessel proliferation were increased and necrosis and inflammation were decreased in all treated groups compared to the control group, but not different statistically. Betadine group significantly increased granulation tissue formation compared to the control group (p= 0.041). Conclusion: There is no universal topical agent that enhances most aspects of wound healing while simultaneously decreasing the bacterial concentration. However, Gentamicin solution may be an optimal topical agent for Pseudomonas aeruginosa infected wound. Further study should experiment on human with Gentamicin solution to confirm a effect on Pseudomonas aeruginosa infected wound for clinical applications.

A Case of Peritoneal Tuberculosis Developed after Infliximab Therapy for Refractory RA

  • Min, Ji-Yeon;Bang, So-Young;Min, Seung-Yeon;Lee, Dae-Sung;Kim, Bo-Sang;Kim, Jeong-Eun;Lee, Eun-Sung;Pyo, Ju-Yeon;Sohn, Jang-Won;Kim, Tae-Hyung;Lee, Hye-Soon
    • Tuberculosis and Respiratory Diseases
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    • v.73 no.4
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    • pp.234-238
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    • 2012
  • Recently, interferon gamma releasing assay has been recommended to compensate the tuberculin skin test (TST) for screening for latent tuberculosis infection (LTBI). Although it improved the detection of LTBI before treatment with tumor necrosis factor blocker, its application to immune suppressed patients is limited. We report a case of peritoneal tuberculosis (TB) developed in a patient who tested positive for TST and QuantiFERON-TB Gold (QFT-G) before infliximab therapy, to emphasize the importance of monitoring during treatment. A 52-year-old woman presented with abdominal distension. She had been diagnosed with seropositive rheumatoid arthritis six years ago. She had started taking infliximab six months ago. All screening tests for TB were performed and the results of all were negative. At admission, the results of repeated TST and QFT-G tests were positive. Histopathological examination confirmed peritoneal TB. The patient started anti-TB therapy and the symptoms were relieved.

A CASE OF PILOMATRICOMA (PILOMATRICOMA 치험 1례)

  • Yang, Hee-Chang;Kim, Soo-Nam;Lee, Dong-Keun;Yim, Chang-Joon;Lee, Chang-Woo;Kim, Eun-Chul
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.12 no.3
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    • pp.34-41
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    • 1990
  • The pilomatricoma (calcifying epithelioma of Malherbe) is rare benign hard, spherical and freely movable cutaneous tumor, which was differentiated from hair cells, particulary hair cortex cells. It is usually occured as a single, asymptomatic, 0.5 cm to 3.0 cm sized, deep seated, firm nodule, covered by normal or pink skin. It arises chiefly in young people, including children, and most often in the head, neck and upper extrimites. The authers experienced a case of pilomatricoma which occured in preauricular region. This case was summarized as follows. 1. 10 years old female has suffered from hard subepidermal mass on preauricular area and she visited our out patient clinic. So we performed surgical extirpation and the excised specimen was pathologically examined. 2. Grossly the tumor measures 2.0 cm in diameter and firm, bosselated, spherical shaped which covered by a thin layer of fibrous tissue. On cut section, it shows spicular gritty surfaces, well encapsulation, interwoven and keratotic lamellae. 3. Histopathologically, the epithelial masses of the tumor are composed of two type of cells, basophilic cells and shodow cells. The basophilic cells resemble hair matrix cells which posses round or elogated, deeply basophilic nuclei and scanty cytoplasm. The shadow cells show a central, unstained shadow at the site of the lost nucleus. Gradual development of basophilic cells into shadow cells can be observed. Foci of calcification are present within the lobule of shadow cells. The stroma of the tumor shows a considerable foreign body giant cell reaction adjacent to the shadow cells. 4. No recurrence was observed until post-operative 40 months.

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AN EXPERIMENTAL STUDY ON THE EFFECT OF LASER ON SOFT TISSUE HEALING (백서에서 레이저 조사가 연조직 치유에 미치는 영향에 관한 연구)

  • Park, Young-Wook;Jang, Jae-Hyun;Kim, Jung-Hwan;Park, Jung-Min;Lee, Suk-Keun
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.31 no.3
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    • pp.222-228
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    • 2009
  • Objectives: This study is aimed to compare the wound healing processes between conventional scapel wound and Er,Cr:YSGG (Erbium,Chromium, Yttrium, Scandium, Gallium, Garnet) laser wound using experimental animals. Experimental Design: Two types of wounds were made by linear and round incisions using scalpel and Er,Cr:YSGG laser, respectively, on the thigh of Sprague-Dawley rats. Sprague-Dawley rats were serially sacrified as follows: post operative 12, 24, 48 hours, and 3, 7, 14 days. The skin wounds were grossly and microscopically analyzed during the healing period. Result: The Er,Cr:YSGG laser incision showed better wound healing for the linear incision experiment than the scapel incision. Whereas the scapel incision showed better wound healing for the round incision experiment than the Er,Cr:YSGG linear incision. As the Er,Cr:YSGG laser damage in the round incision experiment could be much increased compared with the round incision by scapel. So, the round incisions by the Er,Cr:YSGG laser were resulted in the poor wound healing compared with those by the scapel. Conclusion: The Er,Cr:YSGG laser is more favorable for the fast linear incision, while the scapel is more favorable for the modified round incision.

Axillary Reconstruction for Hidradenitis Suppurativa with an Inner-Arm Transposition Flap Creating a Brachioplasty Effect

  • Ching, Daniel L.;Mughal, Maleeha;Papas, Athanasios;Soldin, Mark
    • Archives of Plastic Surgery
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    • v.44 no.3
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    • pp.228-233
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    • 2017
  • Background Hidradenitis suppurativa (HS) is a chronic skin condition that can affect any area with apocrine sweat glands and has the potential to involve multiple sites concurrently. Commonly affected sites include the axilla, groin, perineum and perianal areas. In this study we performed a literature review on the surgical methods for HS and describe an innovative technique for reconstructing axilla HS using an inner-arm transposition flap. Methods We reviewed all cases (5 cases from 4 patients) of transposition flap reconstruction performed by the senior author at a single London tertiary hospital from 2008-2013. Patient related outcome measures were collected using the Derriford appearance scale (DAS 24) and a study specific questionnaire. Results All patients were satisfied with their final result. One out of five cases had a complication but did not result in flap failure. There is no disease recurrence to date. DAS 24 scores collected demonstrated acceptable postoperative distress that did not deviate far from the norm tables while study specific questionnaire reveal desirable outcomes. Conclusions We have managed to achieve our aim through the use of the innovative inner-arm transposition flap. Our study hopes to provide an additional technique for axillary reconstruction. This technique offers the effective concealment of scars with the benefit of tightening of the arm tissue producing 'brachioplasty like' effects. All things considered it would be reasonable to conclude the innovative flap technique is a reliable, effective, and simple method that results in multiple benefits.

Expression Analyses Revealed Thymic Stromal Co-Transporter/Slc46A2 Is in Stem Cell Populations and Is a Putative Tumor Suppressor

  • Kim, Ki Yeon;Lee, Gwanghee;Yoon, Minsang;Cho, Eun Hye;Park, Chan-Sik;Kim, Moon Gyo
    • Molecules and Cells
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    • v.38 no.6
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    • pp.548-561
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    • 2015
  • By combining conventional single cell analysis with flow cytometry and public database searches with bioinformatics tools, we extended the expression profiling of thymic stromal cotransporter (TSCOT), Slc46A2/Ly110, that was shown to be expressed in bipotent precursor and cortical thymic epithelial cells. Genome scale analysis verified TSCOT expression in thymic tissue- and cell type- specific fashion and is also expressed in some other epithelial tissues including skin and lung. Coexpression profiling with genes, Foxn1 and Hoxa3, revealed the role of TSCOT during the organogenesis. TSCOT expression was detected in all thymic epithelial cells (TECs), but not in the $CD31^+$endothelial cell lineage in fetal thymus. In addition, ABC transporter-dependent side population and Sca-$1^+$ fetal TEC populations both contain TSCOT-expressing cells, indicating TEC stem cells express TSCOT. TSCOT expression was identified as early as in differentiating embryonic stem cells. TSCOT expression is not under the control of Foxn1 since TSCOT is present in the thymic rudiment of nude mice. By searching variations in the expression levels, TSCOT is positively associated with Grhl3 and Irf6. Cytokines such as IL1b, IL22 and IL24 are the potential regulators of the TSCOT expression. Surprisingly, we found TSCOT expression in the lung is diminished in lung cancers, suggesting TSCOT may be involved in the suppression of lung tumor development. Based on these results, a model for TEC differentiation from the stem cells was proposed in context of multiple epithelial organ formation.

Surgical Treatment of Cutaneous Angiosarcoma of Scalp:Usefulness of Preoperative Mapping Biopsies (두피에 발생한 혈관육종의 수술시 Mapping Biopsy의 유용성)

  • Kang, Min-Gu;Park, Jong-Lim;Kim, Myung-Good;Minn, Kyung-Won;Koh, Kyung-Suck;Chang, Hak
    • Korean Journal of Head & Neck Oncology
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    • v.23 no.1
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    • pp.37-40
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    • 2007
  • Objectives:Cutaneous angiosarcoma is an infrequent but aggressive neoplasm involving the skin of the face and scalp. Unfamiliarity with the clinical manifestations of cutaneous angiosarcoma frequently leads to misdiagnosis and delay in treatment. Complete surgical resection requires the performance of preoperative staging biopsies to determine the true extent of the neoplasm. Intraoperative frozen section analysis to determine the adequacy of the surgical resection is unreliable due to the high false negative rate. Material and Methods:In five scalp angiosarcoma cases, mapping biopsies were performed at far from the suspected edge of the neoplasm. On permanent pathology, we obtained tumor free margin with occasional focal involvement of the tumor. Results:Frozen-section analysis of the resected margins is inconclusive, for the subtle diagnostic features of angiosarcoma are distorted by the tissue processing required for frozen-section analysis. The characteristic dermal vessels lined by their malignant cells are collapsed by the freezing process. This results in a high rate of false-negative reports and possibly leads to incomplete resection of the neoplasm. Conclusion:Our recommendation is to establish the margins of the tumor by performing preoperative evaluations by mapping biopsies.

Review of Current Facial Allotransplantation and Future Aspects (안면동종이식의 현황고찰과 전망)

  • Seo, Mi Hyun;Lee, Jung A;Oh, Jin Sil;Kim, Soung Min;Myoung, Hoon;Lee, Jong Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.5
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    • pp.342-351
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    • 2013
  • Advances in immunosuppressive treatments and microsurgical techniques have rendered composite tissues allotransplantation (CTA), such as heteregeneous or non-organ tissues, possible in humans. CTA has evolved dramatically since the first successful rat hind limb allotransplantation. Numerous clinical applications including face, hand, trachea, larynx, and vascularized joint have been performed. Although composite tissue allografts are still in their infancy, they have opened a new era in the field of transplantation surgery and pathology, so that maxillofacial reconstructive surgeons may occasionally be faced with the challenge of diagnosing skin refection of a composite tissue allograft. Facial allotransplantation (FAT) is a new surgical technique that could be considered as a new paradigm in facial reconstruction. Since the first human FAT had been achieved in 2005, 17 cases have been reported in the world up to date. However, many problems such as life-long immunosuppression, immune rejection, ethical problems and psychological problems are remained, so facial CTA is new reconstructive option with no general acceptance. The authors reviewed the indications, the results of 17 cases and their complications, and additional consideration factors in this article, and intended to raise the awareness of oral and maxillofacial surgeons in this type of facial transplantation.

Case Reports and Differential Diagnosis of Hemorrhagic Ulcerative Lesions on the Vermilion Zone (홍순에 발생한 출혈성 궤양 병소의 증례보고 및 감별진단)

  • Lee, Kyung-Eun;Jung, Won;Cho, Nam-Phy;Suh, Bong-Jik
    • Journal of Oral Medicine and Pain
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    • v.36 no.2
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    • pp.99-105
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    • 2011
  • The vermilion zone of the lips is mucocutaneous junction between the skin and the oral mucosa of lips. Diseases of the vermilion zone may be related to a local or systemic condition, and can be manifestation of a systemic disease. In this cases, we introduced patients with hemorrhagic, ulcerative lesions on the vermilion zone and reported plasma cell cheilitis and lesion of the vermilion zone related to Stevens-Johnson syndrome(SJS).