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二次脱钙法在临床病理骨组织HE制片中的应用研究
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作者 李彬 党裔武 +3 位作者 邱健峰 陈罡 李奇 黄志广 《现代医药卫生》 2024年第3期409-412,共4页
目的 探讨二次脱钙法在临床病理骨组织苏木精-伊红(HE)制片中的应用价值。方法 收集2022年6-12月该院病理科脱钙不充分、骨组织块或含钙化组织的蜡块100块,制成病理切片,根据脱钙方法的不同将病理切片分为对照组和研究组,对照组采用常... 目的 探讨二次脱钙法在临床病理骨组织苏木精-伊红(HE)制片中的应用价值。方法 收集2022年6-12月该院病理科脱钙不充分、骨组织块或含钙化组织的蜡块100块,制成病理切片,根据脱钙方法的不同将病理切片分为对照组和研究组,对照组采用常规脱钙法,研究组采用二次脱钙法,分析2种方法制片效果的差异。结果 研究组病理切片HE制片结构完整性、HE染色满意度、切片优良率均明显高于对照组,差异均有统计学意义(P<0.05)。结论 二次脱钙法在临床病理骨组织HE制片中具有较高的应用价值。 展开更多
关键词 二次脱钙 临床病理 骨组织 he制片 he染色
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脱钙液的组分与处理时间对骨髓活检组织HE和免疫组化染色的影响
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作者 伍爱华 郑锦花 +2 位作者 张英展 阳玉中 郑翔 《华夏医学》 CAS 2023年第3期25-29,共5页
目的:探讨不同组分的脱钙液及脱钙时间对骨髓活检组织HE染色和免疫组化染色效果的影响。方法:收集36例骨髓活检穿刺组织,分为10%硝酸甲醛液(A液)、10%盐酸甲醛液(B液)和30%甲酸甲醛液(C液)3组,每组12例,分别观察各组的脱钙时间。另收集... 目的:探讨不同组分的脱钙液及脱钙时间对骨髓活检组织HE染色和免疫组化染色效果的影响。方法:收集36例骨髓活检穿刺组织,分为10%硝酸甲醛液(A液)、10%盐酸甲醛液(B液)和30%甲酸甲醛液(C液)3组,每组12例,分别观察各组的脱钙时间。另收集5例骨髓活检穿刺组织,将同一例标本分成两份,观察不同组分的脱钙液和脱钙处理时间对HE染色和免疫组化染色效果的影响。结果:A液、B液的脱钙时间比C液短;3种方法的HE染色效果均较好;而C液脱钙2 h的Ki67免疫组化染色效果好,但其他方法的Ki67免疫组化染色效果欠佳。结论:采用30%甲酸甲醛液处理2 h的脱钙法,实验操作简便,HE染色和免疫组化染色效果较为满意。 展开更多
关键词 骨髓活检 脱钙液 he染色 免疫组化染色
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Application of Prussian blue staining in the diagnosis of ocular siderosis 被引量:1
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作者 Zhen Yang Xiao-Li Yang +2 位作者 Li-Shuai Xu Le Dai Mei-Chao Yi 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2014年第5期790-794,共5页
AIM:To explore the value of Prussian blue staining in the diagnosis of ocular siderosis.METHODS:Between January 2012 and January 2013,the Prussian blue stain used in anterior lens capsule and vitreous liquid after cen... AIM:To explore the value of Prussian blue staining in the diagnosis of ocular siderosis.METHODS:Between January 2012 and January 2013,the Prussian blue stain used in anterior lens capsule and vitreous liquid after centrifugation from patients with definitive diagnosis and suspicious diagnosed of ocular siderosis. At the same time, give a negative control.RESULTS:Anterior lens capsule membrane and liquid of vitreous cavity from patients with definitive diagnosis and suspicious diagnosed of ocular siderosis revealed ferric ions that stained positively with Prussian blue. In the control group, there is no positive reaction.CONCLUSION:Prussian blue staining in the diagnosis of ocular siderosis has a very significant worth,suspected cases can be definitive diagnosed. 展开更多
关键词 INTRAOCULAR foreign BODIES OCULAR SIDEROSIS Prussian BLUE staining
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Selection of oocytes for in vitro maturation by brilliant cresyl blue staining: a study using the mouse model 被引量:11
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作者 Yan-Guang Wu Yong Liu Ping Zhou Guo-Cheng Lan Dong Han De-Qiang Miao Jing-He Tan 《Cell Research》 SCIE CAS CSCD 2007年第8期722-731,共10页
选择是最可能的发展的卵母细胞是关键的为在 vitrofertilization 并且动物克隆。染色的灿烂的 cresyl 蓝色(BCB ) 在大型家畜被用于卵母细胞选举,但是它的更宽的用途需要推进评估。我们再划分进染色的那些(BCB+) 和那些的老鼠卵母细胞... 选择是最可能的发展的卵母细胞是关键的为在 vitrofertilization 并且动物克隆。染色的灿烂的 cresyl 蓝色(BCB ) 在大型家畜被用于卵母细胞选举,但是它的更宽的用途需要推进评估。我们再划分进染色的那些(BCB+) 和那些的老鼠卵母细胞未沾污(BCB-) 根据他们的 ooplasm BCBcoloration。染色质配置,积云房间 apoptosis,细胞质的成熟和发展胜任在 BCB+ 和 BCB- 卵母细胞之间被比较。BCB+ 卵母细胞的胜任上的卵母细胞直径,性成熟和 gonadotropin 刺激的效果也被分析。在thelarge尺寸和中等尺寸的组,BCB+卵母细胞更大并且显示出更多的包围 nucleoli ( SN )染色质配置和早闭锁的更高的频率,并且他们也获得了更好细胞质的成熟(象细胞内部的 GSH 水平和 mitochondrialdistribution 的模式坚定)并且在试管内成熟( IVM )以后的更高发展的潜力比BCB卵母细胞。当没与 PMSG 告知时,成年老鼠比 prepubertal 老鼠与更高的胜任生产了更多的 BCB+ 卵母细胞。PMSG priming 增加了比例和 BCB+oocytes 的发展力量。在大尺寸的组的 BCB+ 卵母细胞在 medium-sizegroup 比他们的对应物显示出更多的 SN 染色质配置,更好细胞质的成熟和更高发展的潜力。染色的 BCB 能为卵母细胞选择被用作一个有效方法,这被结束,但是 BCB+ 卵母细胞的胜任可以与卵母细胞直径,动物性成熟和 gonadotropin 刺激变化。总起来说,这里描述的标准的系列将更好允许在为更好的开发选择卵母细胞的选择。 展开更多
关键词 卵母细胞 甲苯基 细胞成熟 兰色信号 动物模型
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TRANSMISSION ELECTRON MICROSCOPY OF SEGMENTED POLYURETHANES WITH RUTHENIUM TETROXIDE AS A STAINING AGENT
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作者 肖凤飞 陈寿羲 +2 位作者 金永泽 施良和 徐懋 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1991年第3期246-250,共5页
Microphase separation and lamellar structure of segmented polyether- and polyester-polyurethanes have been investigated by means of transmission electron microscopy with the ruthenium tetroxide staining technique. The... Microphase separation and lamellar structure of segmented polyether- and polyester-polyurethanes have been investigated by means of transmission electron microscopy with the ruthenium tetroxide staining technique. The results show that the RuO<sub>4</sub> staining technique is simpler and may give better image contrast than other staining methods for this polymer. Microphase separation and lamellar structure of segmented polyether-and polyester-polyurethanes were directly observed and discussed. 展开更多
关键词 MICRODOMAIN structure LAMELLAE RUTheNIUM tetroxide stain SEGMENTED polyurethane.
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Simplified heavy metal staining techniques demonstrated with Fast Plant leaf tissue
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作者 HARRIS JOSEPH B..THOMAS G. GUILLIAMS JEFFERY A. SCHULTZ 《Cell Research》 SCIE CAS CSCD 1991年第1期89-96,共8页
Fast Plant(Brassica rapa,Cruciferae)leaf tissuefixed in glutaraldehyde-acrolein and post-fixed in os-mium,was examined for response to several easily-prepared heavy metal stains.Lead and uranium,separately and in comb... Fast Plant(Brassica rapa,Cruciferae)leaf tissuefixed in glutaraldehyde-acrolein and post-fixed in os-mium,was examined for response to several easily-prepared heavy metal stains.Lead and uranium,separately and in combination,gave typical resultsacross the spectrum of cell organellets.As a single stainfollowing osmium,bismuth produced images seeminglyequivalent to lead and uranium.Phosphotungstic acidproduced very good membrane delineation but produceda washed-out background image similar to that from leadstaining.Carbohydrate compounds were especiallyresponsive to ruthenium;the cytoplasm and the matrixof all organelles were also stained very well.Theprocedures were no more demanding than traditionalstaining methods and may be easily used in research andteaching.Fast Plant materials are a reliable,quick andeasy source of living material. 展开更多
关键词 FAST Plant LEAF TISSUE Simplified heAVY metal staining technique.
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Fluorescence of Tb-Ibuprofenum-Phen Complex and New Tissue Staining Method
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作者 李桂芝 刘永明 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第S1期33-35,共3页
A new complex Tb(IB)3(phen)·2H2O that gives off green fluorescence was synthesized. The results show that the strong fluorescence emitting of 490 and 545 nm for Tb 3+ in the Tb(IB)3(phen)·2H2O comple... A new complex Tb(IB)3(phen)·2H2O that gives off green fluorescence was synthesized. The results show that the strong fluorescence emitting of 490 and 545 nm for Tb 3+ in the Tb(IB)3(phen)·2H2O complex is related to the transitions 5D4-7F6 and 5D4-7F5, respectively. The results indicate that the complex is concentrated on the nuclei regions in the section of onion toot tip tissues and the nuclei are high lighted under fluorescent microscope. It is possible that the Tb(IB)3(phen)·2H2O complex can be developed as a fluorescent dye in biological and pathological studies. 展开更多
关键词 TB 3+-complex ibuprofenum PheN FLUORESCENCE TISSUE staining rare earths
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Does immunohistochemical staining have a clinical impact in early gastric cancer conducted endoscopic submucosal dissection? 被引量:6
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作者 Seong Ran Jeon Joo Young Cho +5 位作者 Gene Hyun Bok Tae Hee Lee Hyun Gun Kim Won Young Cho So Young Jin Yeon Soo Kim 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第33期4578-4584,共7页
AIM: To evaluate clinicopathologic parameters and the clinical significance related lymphovascular invasion (LVI) by immunohistochemical staining (IHCS) in endoscopic submucosal dissection (ESD). METHODS: Between May ... AIM: To evaluate clinicopathologic parameters and the clinical significance related lymphovascular invasion (LVI) by immunohistochemical staining (IHCS) in endoscopic submucosal dissection (ESD). METHODS: Between May 2005 and May 2010, a total of 348 lesions from 321 patients (mean age 63 ± 10 years, men 74.6%) with early gastric cancer (EGC) who met indication criteria after ESD were analyzed retrospectively. The 348 lesions were divided into the absolute (n = 100, differentiated mucosal cancer without ulcer ≤ 20 mm) and expanded (n = 248) indica-tion groups after ESD. The 248 lesions were divided into four subgroups according to the expanded ESD indication. The presence of LVI was determined by factor Ⅷ-related antigen and D2-40 assessment. We compared LVI IHCS-negative group with LVI IHCSpositive in each group. RESULTS: LVI by hematoxylin-eosin staining (HES) and IHCS were all negative in the absolute group, while was observed in only the expanded groups. The positive rate of LVI by IHCS was higher than that of LVI by HES (n = 1, 0.4% vs n = 11, 4.4%, P = 0.044). LVI IHCS-positivity was observed when the cancer invaded to the mucosa 3 (M3) or submucosa 1 (SM1) levels, with a predominance of 63.6% in the subgroup that included only SM1 cancer (P < 0.01). In a univariate analysis, M3 or SM1 invasion by the tumor was significantly associated with a higher rate of LVI by IHCS, but no factor was significant in a multivariate analysis. There were no cases of tumor recurrence or metastasis during the median 26 mo follow-up. CONCLUSION: EGCs of the absolute group are immunohistochemically stable. The presence of LVI may be carefully examined by IHCS in an ESD expanded indication group with an invasion depth of M3 or greater. 展开更多
关键词 免疫组化染色 临床意义 胃癌 膜下 剥离 内镜 患者 早期
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Immunohistochemical CD3 staining detects additional patients with celiac disease
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作者 Amani Mubarak Victorien M Wolters +1 位作者 Roderick HJ Houwen Fiebo JW ten Kate 《World Journal of Gastroenterology》 SCIE CAS 2015年第24期7553-7557,共5页
AIM: To investigate whether performing immuno-histochemical CD3 staining, in order to improve the detection of intra-epithelial lymphocytosis, has an additional value in the histological diagnosis of celiac disease.ME... AIM: To investigate whether performing immuno-histochemical CD3 staining, in order to improve the detection of intra-epithelial lymphocytosis, has an additional value in the histological diagnosis of celiac disease.METHODS: Biopsies obtained from 159 children were stained by hematoxylin and eosin(HE) and evaluated using the Marsh classification. CD3 staining was subsequently evaluated separately and independently.RESULTS: Differences in evaluation between the routine HE sections and CD3 staining were present in 20(12.6%) cases. In 10(6.3%) patients the diagnosis of celiac disease(Marsh Ⅱ and Ⅲ) changed on examination of CD3 staining: in 9 cases, celiac disease had initially been missed on the HE sections, while 1 patient had been over-diagnosed on the routine sections. In all patients, the final diagnosis based on CD3 staining, was concordant with serological results, which was not found previously. In the other 10(12.3%) patients, the detection of sole intra-epithelial lymphocytosis(Marsh Ⅰ) improved. Nine patients were found to have Marsh Ⅰ on CD3 sections, which had been missed on routine sections. Interestingly, the only patient with negative serology had Giardiasis. Finally, in 1 patient with negative serology, in whom Marsh Ⅰ was suspected on HE sections, this diagnosis was withdrawn after evaluation of the CD3 sections.CONCLUSION: Staining for CD3 has an additional value in the histological detection of celiac disease lesions, and CD3 staining should be performed when there is a discrepancy between serology and the diagnosis made on HE sections. 展开更多
关键词 CELIAC disease Diagnosis Intra-epitheliallymphocytosis HISTOLOGY MARSH classification CD3staining
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OBSERVATION OF MEGAKARYOCYTOPOIESIS IN HUMAN FETUS BY IMMUNOCYTOCHEMICAL STAINING WITH ANTI-PLATELET GLYCOPROTEIN ⅡB /ⅢA MONOCLONAL ANTIBODY
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作者 MA Dongchu CHU Junjie SUN Yinghui CHANG Kuizhong ZUO Wei (Department of Experimental Medicine, General Hospital of Shenyang Shenyang, China) Correspondence: Dr. MA Dongchu, Department of Experimental Medicine, General Hospital of Shenyang, 83, Wenhua Road, Shenyang, Liaoning 110015, China. 《中国实验血液学杂志》 CAS CSCD 1994年第2期197-204,共8页
Fetal liver tissues obtained from 28 human fetuses with gestation age from 3 to 6 months and fetal bone marrow from 35 human fetuses from 3 to 7 months were observed by immunochemical staining with anti-platelet GPⅡ ... Fetal liver tissues obtained from 28 human fetuses with gestation age from 3 to 6 months and fetal bone marrow from 35 human fetuses from 3 to 7 months were observed by immunochemical staining with anti-platelet GPⅡ b / Ⅲa monoclonal antibody and ABC technique. In the fetal liver, megakaryocytes were wholly located among growing fetal liver cells and near foci of hemopoiesis. Some megakaryocytes in the fetal liver were small7890- lymphoid-like megakaryocytes. The size of megakaryocytes both in the fetal liver (14.79 ± 4.52μm) and in the fetal bone marrow (16.08±7.39 μm) was small, which did not vary significantly over the gestation age ranging from 3 to 6 or 7 months. However, the maturation stage of megakaryocytes in the fetal liver shifted to more mature stage with the advancement of gestation, although the maturation stage of megakaryocytes in the fetal bone marrow did not change with the advancement of gestation from 4 to 7 months, the megakaryocyte in the fetal bone marrow was less mature 展开更多
关键词 MEGAKARYOCYTE anti- platelet GP b / a monoclonal anti- body immunocytochemical staining
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Application of Luxol Fast Blue staining in locating the corticospinal tract in adult rats 被引量:1
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作者 Su Liu1, Guangyu Shen1, Guangming Lü2, Xiaosong Gu3 1Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China 2Department of Human Anatomy, Nantong University, Nantong 226001, Jiangsu Province, China 3Jiangsu Key Laboratory of Nerve Regeneration, Nantong 226001, Jiangsu Province, China 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第7期642-644,共3页
BACKGROUND: There are many methods for myelin staining,mordant,or the special reaction of osmic acid with lipoid is used according to different principles.The commonly used methods are classic Well staining ,classic l... BACKGROUND: There are many methods for myelin staining,mordant,or the special reaction of osmic acid with lipoid is used according to different principles.The commonly used methods are classic Well staining ,classic lithium carbonate-haematine staining,fast green staining,silver staining ,etc.Luxol Fast Blue can brightly stain myelin sheath,and has certain specificity .The background can be very clean if there is proper differentiation,whereas Luxol Fast Blue is cheap and convenient to operate,thus it is an ideal staining reagent for routine myelin sheath.OBJECTIVE: To show the coricospinal tract of normal adult rats with Luxol Fast Blue shaining method.DESIGN:A repetitive measurement design.SETTINGS: Institute of Nuerobiology,Nantong University;Department of Rehabilitation Medicine,Affiliated Hospital of Nantong University.MATERIALS: Six healthy adult male SD rats of clean dergree,weighing averagely 300 g.were provided by the experimental animal center of Nantong University.1 g/L Luxol Fast Blue solution was provided by Sigma Company;Leica CM1900 cryostat microtome by Leica Company;Leica DMR microscope by Leica Company.METHODS:The experiment was carried out in the Staff Room of Human Anatomy,Nantong University in May 2005.The rats were given intraperitoneal injection of combined anesthetic(2 mL/kg),then the chest was open for perfusing saline and phosphate buffer containing formamint via heart. Brain and spinal cord were removed after 1 hour then fixed,then changed to phosphate buffer(pH 7.4)containing 300 g/L saccharu at 4 ℃.and stayed overnight,tissue blocks at pyramid,decussation of pyramid and cervical,thoracic,lumbar and sacral segments of spinal cord were removed to prepare continuous horizontal frozen sections(30 μm) after sedimentation,the sections were dried at room temperature.The corticospinal tract of normal adult rats were shown with Luxol Fast Blue staining method,and observed under Leica DMR microscope.MAIN OUTCOME MEASURES:Positive fibers in Luxol Fast Blue staining.RESULTS:After the Luxol Fast Blue staining,the labeled myelinated nerve fibers were bright blue.They located in the pyramid,decussation of pyramid and the ventral part of posterior funiculus in cervical,thoracic,lumbar and sacral segments of spinal cord.CONCLUSION:Luxol Fast Blue staining method may manifest the distribution of corticospinal tract with clear distinct in adult rats. 展开更多
关键词 Application of Luxol Fast Blue staining in locating the corticospinal tract in adult rats
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Evaluation of sperm mitochondrial function using rh123/PI dual fluorescent staining in asthenospermia and oligoasthenozoospermia 被引量:4
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作者 Tiejun Zou Xiang Liu Shangshu Ding Junping Xing 《The Journal of Biomedical Research》 CAS 2010年第5期404-410,共7页
Objective:The recent advent of flow cytometry(FCM),coupled with fluorescent dyes,has been successfully applied to assess mitochondrial function.The aim of this study was to investigate the feasibility and clinical sig... Objective:The recent advent of flow cytometry(FCM),coupled with fluorescent dyes,has been successfully applied to assess mitochondrial function.The aim of this study was to investigate the feasibility and clinical significance of detecting sperm mitochondrial function and to evaluate sperm mitochondrial function by using Rhodamine 123/propidium(Rh123/PI)dual fluorescent staining and FCM in asthenospermia and oligoasthenozoospermia.Methods:Twenty-five fertile men(with normal sperm parameters)and 230 infertile patients were examined.Fifty-five patients of the above 230 patients were selected for idiopathic infertility samples and were divided into two groups:asthenospermia(n=30)and oligoasthenozoospermia(n=25).Rh123/PI dual fluorescent staining and FCM were carried out to examine sperm mitochondrial function.Results:Significant differences were found between the normal and abnormal semen samples(P<0.05)when Rh123+/PI-,Rh123-/PI+and Rh123-/PI-sperm were examined by FCM,but there was no significant difference between the asthenospermia(P=0.469) and oligoasthenozoospermia group(P=0.950)when Rh123+/PI-and Rh123-/PI+sperm were then examined;however,a significant difference was found between the 2 groups(P=0.003)when Rh123-/PI-sperm were examined.There was no correlation between Rh123-/PI-sperm and semen parameters in the normal group,but there was a significant negative correlation between the sperm concentration and Rh123-/PI-sperm in asthenospermia and oligoasthenozoospermia patients(r=-0.509,-0.660;P=0.018,0.038).Conclusion:Rh123/PI dual fluorescent staining and FCM can provide reliable information to assess the quality of sperm and reveal differences in mitochondrial membrane potential in asthenospermia and oligoasthenozoospermia. 展开更多
关键词 精子质量 荧光染色 体功能 评价手段 流式细胞仪 线粒体膜电位 荧光染料 临床意义
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A NEW STAINING METHOD FOR THE MEASUREMENT OF PROTEIN USING TETRAPHENYLPORPHYRIN TETRASULFONATE(TPPS_4)
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作者 Shen Yang TONG Na LI Chemistry Department,Peking University,Beijing,100871 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第12期1079-1080,共2页
A new dye-staining method for protein assay is described.The reactionbetween TPPS<sub>4</sub> and protein molecule causes a shift in the absorption of TPPS<sub>4</sub>from 435 nm to 488nm.The a... A new dye-staining method for protein assay is described.The reactionbetween TPPS<sub>4</sub> and protein molecule causes a shift in the absorption of TPPS<sub>4</sub>from 435 nm to 488nm.The absorbance at 488 nm is proportional to theconcentration of protein.The range of Beer’s law was 1-5 ug/ml and the Sandell’ssensitivity was 0.0087 ug/cm<sup>2</sup>. 展开更多
关键词 ABSORBANCE staining proportional blank DILUTED herein BRADFORD bovine deter IgG
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Experimental Study on the Effectiveness and Safety of Gardenia Blue Pigment on Anterior Capsule Staining
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作者 Tong Wu Zhuo-Shi Wang +2 位作者 Ling Xu Yu-Qiang Zheng Shan Lu 《Journal of Hainan Medical University》 2020年第5期7-10,共4页
Objective: To explore the effect of gardenia blue pigment on the anterior capsule staining and its safety performance. Methods: In this study, New Zealand white rabbits were used as the research object to test the eff... Objective: To explore the effect of gardenia blue pigment on the anterior capsule staining and its safety performance. Methods: In this study, New Zealand white rabbits were used as the research object to test the effect of gardenia blue pigment on the anterior capsule staining and anterior segment toxicity. In this study, gardenia blue stains of different concentrations (5%, 4%, 3%, 2%, 1%, 0.5%) were prepared to stain the anterior capsule of rabbit crystals, and the effect of the stain was observed to determine the optimal concentration of the stain. Twenty-seven healthy New Zealand white rabbits without eye disease were randomly divided into three groups: gardenia blue staining group;bio-blue positive drug group;physiological saline group. The intraocular pressure, anterior chamber inflammation, corneal endothelial injury, and anterior chamber angle pathological changes were measured in 1D, 7D, and 14D. Results: The results of this study showed that the effect of gardenia blue pigment on the anterior capsule of the lens was the best when the concentration of blue pigment was 2%. There was no change in intraocular pressure in the anterior chamber for a short period of time. There is no damage to the corneal endothelium. Conclusion: The results of this study show that the effect of gardenia blue pigment on the anterior capsule is best when the concentration of blue pigment is 2%, and the stain has no obvious toxic and side effects on the anterior segment of the eye. 展开更多
关键词 Gardenia blue Stain Anterior capsule staining Continuous circular capsulorhexis
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Protective effect of liraglutide on the myocardium of type 2 diabetic rats by inhibiting polyadenosine diphosphate-ribose polymerase-1 被引量:1
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作者 Dong-Dong Xue Xiang Zhang +2 位作者 De-Wei Li Yan-Lan Yang Jing-Jin Liu 《World Journal of Diabetes》 SCIE 2023年第2期110-119,共10页
BACKGROUND In recent years,studies have found that the occurrence and development of diabetic cardiomyopathy(DCM)is closely related to an increase in polyadenosine diphosphate-ribose polymerase-1(PARP-1)activity.PARP-... BACKGROUND In recent years,studies have found that the occurrence and development of diabetic cardiomyopathy(DCM)is closely related to an increase in polyadenosine diphosphate-ribose polymerase-1(PARP-1)activity.PARP-1 activation could be involved in the pathophysiological process of DCM by promoting oxidative stress,the inflammatory response,apoptosis and myocardial fibrosis.AIM To investigate the mechanism of liraglutide in improving myocardial injury in type 2 diabetic rats,further clarified the protective effect of liraglutide on the heart,and provided a new option for the treatment of DCM.METHODS Forty healthy male SD rats aged 6 wk were randomly divided into two groups,a normal control group(n=10)and a model group(n=30),which were fed an ordinary diet and a high-sugar and high-fat diet,respectively.After successful modeling,the rats in the model group were fed a high-glucose and high-fat diet for 4 wk and randomly divided into a model group and an intervention group(further divided into a high-dose group and a low-dose group).The rats were fed a high-glucose and high-fat diet for 8 wk and then started drug intervention.Blood samples were collected from the abdominal aorta to detect fasting blood glucose and lipid profiles.Intact heart tissue was dissected,and its weight was used to calculate the heart weight index.Haematoxylin and eosin staining was used to observe the pathological changes in the myocardium and the expression of PARP-1 in the heart by immunohistochemistry.RESULTS The body weight and heart weight index of rats in the model group were significantly increased compared with those in the normal control group,and those in the intervention group were decreased compared with those in the model group,with a more obvious decrease observed in the high-dose group(P<0.05).In the model group,myocardial fibers were disordered,and inflammatory cells and interstitial fibrosis were observed.The cardiomyopathy of rats in the intervention group was improved to different degrees,the myocardial fibers were arranged neatly,and the myocardial cells were clearly striated;the improvement was more obvious in the high-dose group.Compared with the normal control group,the expression of PARP-1 in myocardial tissue of the model group was increased,and the difference was statistically significant(P<0.05).After liraglutide intervention,compared with the model group,the expression of PARP-1 in myocardial tissue was decreased,and the reduction was more obvious in the high-dose group(P<0.05)but still higher than that in the normal control group.CONCLUSION Liraglutide may improve myocardial injury in type 2 diabetic rats by inhibiting the expression of myocardial PARP-1 in a dose-dependent manner. 展开更多
关键词 LIRAGLUTIDE animal models Type 2 diabetic rats Polyadenosine diphosphate-ribose polymerase-1 Haematoxylin and eosin staining Immunohistochemistry
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Detecting the apoptosis of dopamine neurons with immunohistochemical staining and double-staining technique
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作者 Jiguo Zhang Jing Zhang +1 位作者 Feng Zhang Yunsheng Gao 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第1期84-86,共3页
BACKGROUND: It is proved that the onset of Parkinson disease companies with neuronal apoptosis of dopamine in substantia nigra of midbrain. Previous researches on neuronal apoptosis of dopamine were analyzed on their ... BACKGROUND: It is proved that the onset of Parkinson disease companies with neuronal apoptosis of dopamine in substantia nigra of midbrain. Previous researches on neuronal apoptosis of dopamine were analyzed on their consecutive tissue sections with immunohistochemical single-labeling method, immunofluorescence and electron microscope, and there are significant differences. OBJECTIVE: To observe the feasibility of neuronal apoptosis of dopamine with in situ end labeling and tyrosine-hydroxylase antibody immunohistochemical double-labeling staining technique. DESIGN: Controlled study. SETTING: College of Pharmacology of Taishan Medical College; College of Management of Taishan Medical College. MATERIALS: Wistar rats with 2 weeks old and of clean grade were provided by the Animal Center of Taishan Medical College. In situ end labeling kit (terminal deoxynucleotidyl transferase, mixed reactive solution of nucleotide, transfusion-POD), monoclonal antibody of rat antibody against tyrosine hydroxylase (Boehriuser). METHODS: The experiment was completed at the Pharmacological Laboratory of Taishan Medical College from February to December 2005. Tissue from midbrain of rats was taken out to make paraffin sections to observe the neuronal apoptosis of dopamine under microscope with in situ end labeling and tyrosine-hydroxylase antibody immunohistochemical double-labeling staining technique. MAIN OUTCOME MEASURES: Neuronal apoptosis of dopamine with in situ end labeling and tyrosine-hydroxylase antibody immunohistochemical double-labeling staining technique. RESULTS: ① After double-labeling staining, two kinks of positive products were observed in neurons of dopamine which were suffered from apoptosis. One stained with tyrosine hydroxylase was hyacinthine, and the other stained with in situ end labeling was buffy. Cells of positive products stained with in situ end labeling shaped as strap and bend and was distributed in clustering. Cytoplasm was hyacinthine, staining was symmetrical, and cellular ecphyma was observed. Nucleus was stained vacantly which was coincidence with form of neurons of dopamine. ② Apoptosis showed strictly in cytoplasm and nucleus at the aspect of morphology. Cytoplasm stained with in situ end labeling was hardly to recognize because of the usage of double-labeling staining technique, but nucleus was still characterized by apoptosis. The behavior of positive products stained with in situ end labeling was described as following: nucleus was buffy; karyopycnosis was round and irregular; caryotin was integrated into clump which was distributed at the border of nucleus and shaped as demilune and anular; positive signals were limited in nucleus and coincidence with morphological changes of apoptosis. However, blue and positive products were observed in cytoplasm of neurons of dopamine which did not occur apoptosis, and the nucleus was not labeled. Therefore, processing apoptosis of neurons of dopamine could be recognized. CONCULSION: Double-labeling staining technique can be used to correctly reveal histological and morphological changes of neuronal apoptosis of dopamine during its onset and development. 展开更多
关键词 Detecting the apoptosis of dopamine neurons with immunohistochemical staining and double-staining technique
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Comparison of Hematoxylin-eosin Staining and Methyl Violet Staining for Displaying Ghost Cells
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作者 Wenxin Zhang Yongping Li +5 位作者 Jianxian Lin Shangtao Wan Huanhuan Gao Lanzhi Zhang Jianliang Zheng Ping Zhang 《Eye Science》 CAS 2013年第3期140-143,共4页
Purpose:.To compare the merits and limitations of hematoxylin-eosin(HE) and methyl violet staining for displaying ghost cells from vitreous or aqueous humor.Methods:.A specimen containing ghost cells was adjusted to f... Purpose:.To compare the merits and limitations of hematoxylin-eosin(HE) and methyl violet staining for displaying ghost cells from vitreous or aqueous humor.Methods:.A specimen containing ghost cells was adjusted to five different concentrations:(12×104,.10×104,.8×104, 6×104and 4×104cells / ml) and subjected to smearing and methyl violet and HE staining..The staining results were observed by light microscopy.Results: The ghost cells were readily observed at a cell density of > 8×104cells / ml with methyl violet staining,.but only a few cells were occasionally seen at lower cell densities..In contrast,.ghost cells were seen at all cell densities with HE staining.Conclusion: Methyl violet staining is more rapid and simpler for the identification of ghost cells, but its staining color more readily fades, the slides cannot be stored, and it is only effective at a cell density of > 8 ×104cells / ml. In contrast,.HE staining is more time-consuming but it can display cell morphology and distinguish cell components more explicitly and slides can be permanently stored. HE staining has advantages over methyl violet staining in detecting the ghost cells when the concentration is < 8×104cells / ml. 展开更多
关键词 细胞密度 he染色 甲基紫 苏木精 显示 伊红 光镜观察 电池组件
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Early brainstem hemorrhage progression:multi-sequence magnetic resonance imaging and histopathology
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作者 Xi Guo Jia-Ke Xu +6 位作者 Xin Qi Yang Wei Cheng-Wei Wang Hao Li Lu Ma Chao You Meng Tian 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第1期170-175,共6页
According to clinical statistics,the mortality of patients with early brainstem hemorrhage is high.In this study,we established rat models of brainstem hemorrhage by injecting type Ⅶ collagenase into the right basote... According to clinical statistics,the mortality of patients with early brainstem hemorrhage is high.In this study,we established rat models of brainstem hemorrhage by injecting type Ⅶ collagenase into the right basotegmental pontine and investigated the pathological changes of early brainstem hemorrhage using multi-sequence magnetic resonance imaging and histopathological methods.We found that brainstem hematoma gradually formed in the injured rats over the first 3 days and then reduced after 7 days.The edema that occurred was mainly of the vasogenic type.No complete myelin sheath structure was found around the focus of the brainstem hemorrhage.The integrity and continuity of nerve fibers gradually deteriorated over the first 7 days.Neuronal degeneration was mild in the first 3 days and then obviously aggravated on the 7^(th)day.Inflammatory cytokines,interleukin-1β,and tumor necrosis factorαappeared on the 1st day after intracerebral hemorrhage,reached peak levels on the 3^(rd)day,and decreased from the 7^(th)day.Our findings show the characteristics of the progression of early brainstem hemorrhage. 展开更多
关键词 brainstem hemorrhage diffuse tensor imaging diffusion-weighted imaging Fluoro-Jade C staining hematoxylin-eosin staining INTERLEUKIN-1Β luxol fast blue rat model T2-weighted imaging tumor necrosis factor-α
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Prevalence of Pulmonary Tuberculosis and Associated Factors among Patients Admitted to the Amissa Bongo University Hospital Center in Franceville, Gabon
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作者 Thiéry Ndong Mba Cedric Sima Obiang +6 位作者 Hilaire Moundounga Kenguele Arnaud Brice Pambo-Pambo Iris Kévin Ivala Zogo Mba Ulrich Lowens Onkassa Sah Louis-Clement Obame Engonga Cyrille Bisseye Patrick Mickala 《Journal of Biosciences and Medicines》 2023年第7期160-173,共14页
Background: In Gabon, the epidemiology of tuberculosis has been considerably reshaped by the AIDS virus. It is in this context that the present study was conducted to assess the prevalence of pulmonary tuberculosis an... Background: In Gabon, the epidemiology of tuberculosis has been considerably reshaped by the AIDS virus. It is in this context that the present study was conducted to assess the prevalence of pulmonary tuberculosis and associated factors among patients at the Amissa Bongo Regional Hospital in Franceville, Gabon. Patients and Methods: This prospective, cross-sectional study was conducted in the biomedical analysis laboratory of the Amissa Bongo Regional University Hospital in Franceville from 19 June 2021 to 22 January 2022. After agreeing to take part in the study, participants were asked to fill in a questionnaire to collect their socio-demographic data and habits. Clinical signs were also observed. Sputum and gastric fluid samples were collected and examined using the Xpert MTB/RIF test and BAAR smear microscopy. Data were analysed using R software version 3.6.1. The results of the univariate and multivariate analyses were considered significant for p ≤ 0.05. Results: A total of 309 patients were included in this study, 50.81% (n = 157) men and 49.19% (n = 152) women. Of these, 98 had a positive diagnosis of pulmonary tuberculosis, giving an overall prevalence rate of 31.72%. There were 40 women or 40.82% (95% CI: [0.30 - 0.51]) and 58 men or 59.18% (95% CI: [0.48 - 0.69]). A univariate analysis of the prevalence of tuberculosis according to risk factors and clinical signs indicated a certain association between certain variables. However, an in-depth multivariate logistic regression analysis of this prevalence, according to the risk factors and clinical signs observed in the patients in the study, indicated that the age group 15 and 49 years (Adjusted OR = 47.77;95% CI: [4.4;519.7] p = 0.001*), fever (Adjusted OR = 4.83;95% CI: [1.16, 20.12] p = 0.031*), alcohol consumption (Adjusted OR = 12.2;95% CI: 12.2 [2.5;5.9] p = 0. 002*), smoking (Adjusted OR = 9.83;95% CI: [1.78;54.24] p = 0.037), HIV infection (Adjusted OR = 4.63;95% CI: [1.25;17.1] p = 0.022), cough (Adjusted OR = 4.31;95% CI: [1.21, 15.4] p = 0. 025*), chest pain (Adjusted OR = 103.6;95% CI: [19.4;55.2] p = 0.000), night sweating cough (Adjusted OR = 10.84;95% CI: [3.18;36.98] p = 0.000*) were significant risk factors for pulmonary tuberculosis. Conclusion: The results of the present study showed that the prevalence of pulmonary tuberculosis was greatest among males in Franceville and the surrounding area. The 15 - 49 age group, fever, alcohol consumption, smoking, HIV infection, chest pain, night sweats and cough were significant risk factors for pulmonary tuberculosis. Consequently, screening for tuberculosis in HIV-positive patients, public awareness and community mobilisation should be encouraged. 展开更多
关键词 PREVALENCE Pulmonary Tuberculosis Ziehl-Neelsen Rapid Acid staining GeneXpert CHURAB Franceville GABON
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Can the Prediction of Intrauterine Insemination Results by Used Aniline Blue Stain (ABS) and Sperm Chromatin Dispersion (SCD) Levels?
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作者 Talal Z. Al-Darawsha Nurten Dayioglu +1 位作者 Bushra R. Al-Azzawi Tulay Irez 《Advances in Reproductive Sciences》 CAS 2023年第1期1-10,共10页
Introduction: This study aimed to perform routine seminal fluid analysis, sperm DNA fragmentation, and sperm function tests at the chromatin maturation level and evaluate pregnancy in the patients passing intrauterine... Introduction: This study aimed to perform routine seminal fluid analysis, sperm DNA fragmentation, and sperm function tests at the chromatin maturation level and evaluate pregnancy in the patients passing intrauterine insemination before starting Intrauterine Insemination (IUI) method. Materials and Methods: In this prospective study, 111 couples who underwent Intrauterine Insemination (IUI) in unexplained infertility patients were admitted to Al-Farah IVF and assisted reproductive center in Baghdad, Iraq between November 2020 and February 2021 were evaluated. Semen fluid analysis was performed based on (WHO 4th) guiding rules. In addition, Sperm Chromatin Dispersion (halo test) and sperm maturation were performed with Aniline Blue Stain (ABS). Results: Sperm Chromatin Dispersion (SCD) groups were compared in terms of pregnancy outcome;the positive pregnancy rate was found to be above in the normal SCD groups (p = 0.0005). In addition, Aniline Blue Stain (ABS) groups were compared in the terms of pregnancy outcome;the positive pregnancy rate was found to be higher in the normal ABS group (p = 0.017). Conclusion: Our study showed that the use of DNA fragmentation (SCD) and sperm maturation tests (ABS) together with routine semen analysis in intrauterine insemination cases will make a significant contribution to the prediction of Intrauterine Insemination (IUI) increased results. So, these results indicate a defect in the effect of DNA fragmentation on the outcome of intrauterine insemination. 展开更多
关键词 Sperm Chromatin Dispersion Aniline Blue Stain Sperm DNA Fragmentation Intrauterine Insemination
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