用改良苯酚品红染色液替代醋酸洋红染色液的研究

以往在动物遗传学实验“果蝇唾液腺染色体标本的制作和观察”中,采用醋酸洋红染色液对染色体染色。本文对用改良苯酚品红染色液替代醋酸洋红染色液对果蝇唾液腺染色体染色的问题进行了研究。结果表明,改良苯酚品红染色液对果蝇唾液腺染色体的染色效果与醋酸染洋红染色液的染色效果是相同的。而且用改良苯酚品红染色液还人提高工效,简易节约的优点。因此认为,在对果蝇唾液腺染色体染色中,用改良苯酚品红染色液替代酸酸洋红染色液     

网状纤维染色技术改进

目的探讨改进网状纤维染色氨银液配制方法与改进染色方法的可行性。方法改进网状纤维染色中氨银液的配制方法和染色方法,与传统染色方法比较其染色效果与脱片率。结果改进网状纤维染色方法切片背景清洁度、网状纤维清晰度、网状纤维与胶原纤维对比度3项指标的得分均显著高于传统方法;改进网状纤维染色方法切片脱片率低于传统方法。结论改进网状纤维染色氨银液配制方法、改进网状纤维染色方法,可提高氨银液配制的成功率,延长氨银液有效期,提高网状纤维的染色质量,减少网状纤维染色的脱片率。     

脱钙对鼠颅骨标本中肥大细胞组织化学与免疫组织化学染色的影响

目的:探讨脱钙对鼠颅骨标本中肥大细胞组织化学与免疫组织化学染色影响.方法:用不同脱钙液处理小鼠颅骨标本,组织切片后进行苏木素一伊红染色、甲苯胺蓝染色、醛品红染色以及免疫组织化学染色.结果:经过不同脱钙液处理后的颅骨组织切片组织结构保存完好,肥大细胞的组织化学染色(甲苯胺蓝和醛品红染色),及肥大细胞中胰蛋白酶的免疫组织化学染色清晰.结论:不同脱钙液(8%盐酸脱钙液、EDTA脱钙液、混合酸脱钙液)处理不影响鼻腔粘膜中肥大细胞的组织化学和免疫组织化学染色.     

介绍一种用卡介苗进行改良抗酸染色的实验教学方法

利用卡介苗取代结核分枝杆菌阳性痰液作为实验标本,使用改良后的抗酸染液进行抗酸染色实验教学。卡介苗水溶液为标本,石炭酸复红染色液中加入5%的Tween-80进行抗酸染色。染色后,卡介苗标本片与结核菌阳性痰液标本比较,菌体形态与染色均无明显差异。此法具有染色效果好、标本来源方便、安全无污染等优点,满足抗酸染色实验教学需要。     

不同脱钙条件下三种脱钙液脱钙效果的比较

目的探讨在常温和加温脱钙条件下,甲酸混合液、Alexander硝酸甲醛液及Jenking脱钙液的脱钙效果和染色结果。方法取小鼠膝关节骨组织分为6份,根据脱钙条件和脱钙液的不同,分为常温脱钙组合加温脱钙组两组。常温脱钙组:三种脱钙液常温(25℃)脱钙48h并石蜡切片HE染色;加温脱钙组:三种脱钙液70℃温箱脱钙6h并石蜡切片HE染色,并分别观察骨组织在不同脱钙液及脱钙条件下的脱钙效果及染色结果。结果常温(25℃)脱钙组标本中,经甲酸混合液脱钙的骨组织较难切片,染色较差;经Alexander硝酸甲醛液脱钙的骨组织较易切片,染色较差;经Jenking脱钙液脱钙的骨组织较易切片,染色较好。加温脱钙组标本中,经甲酸混合液脱钙的骨组织较易切片,染色较好;经Alexander硝酸甲醛液脱钙的骨组织较易切片,染色一般;经Jenking脱钙液脱钙的骨组织较易切片,染色较好。结论不同的脱钙液种类及脱钙条件对脱钙及染色结果有较大的影响,标本经三种脱钙液加温脱钙后,使脱钙时间大大缩短,减少了酸对组织的破坏,在脱钙效果及染色结果方面,均要优于常温脱钙,而Jenking脱钙液无论在常温和加温条件下的脱钙和染色效果均要优于其它两种脱钙液,有一定的应用价值。     

真菌荧光染色液征文启事

正真菌荧光染色液自上市以来,已在全国多家二级、三级医院推广、使用。为客观地了解真菌荧光染色液在临床真菌检测方面的情况,收集更多的临床应用信息,促进该种染色液在基层医院的推广使用,现决定由《中国真菌学杂志》和南京汉瑞生物科技有限公司共同举办此次有奖征文活动。一、征文要求及范围1、本次征文内容要求与真菌荧光染色液(商品名"溯康""速立清")相关,课题不限,征文类型不限,病     

一种简便经济的凝胶电泳同工酶特异染色方法

介绍一种简单、经济的同工酶染色方法：用熔化的0．4％琼脂糖处理滤纸备用,染色前将滤纸浸于同工酶染色液中,染色时将滤纸盖在聚丙烯酸胺胶上,然后将胶放在有盖塑料盒中保温染色,染色时间要比普通方法略长。染色后将胶和滤纸移入固定液中用镊子除去滤纸．     

延长鞭毛染色液使用时间的研究

介绍一种保存细菌鞭毛染色液的简便方法。采用低温、隔绝空气、避光的手段,可以比较稳定地保存鞭毛染色液,适当延长其使用时间。     

三种固定液对两种氧化应激细胞模型Bclin1和LC3蛋白免疫荧光染色的影响

摘要 目的：比较采用三种不同的固定液对两种氧化应激细胞模型Beclin1和LC3蛋白免疫荧光染色的影响。方法：本研究使用丙酮/甲醇（1:1）固定液、甲醇固定液和4%多聚甲醛三种固定液分别对氧化应激细胞模型大鼠原代心肌成纤维细胞和MCF-7乳腺癌细胞株进行固定,然后再分别进行免疫荧光双染实验,对比三种固定液固定后对自噬关键调控蛋白Beclin1和LC3染色效果。结果：三种固定液对氧化应激细胞模型Beclin1和LC3蛋白免疫荧光染色结果存在较大差异。丙酮/甲醇（1:1）固定液固定后免疫荧光染色效果最佳,细胞结构清晰可见,两种蛋白定位表达清晰,甲醇固定液次之,4%多聚甲醛固定液效果欠佳。结论：在对大鼠原代心肌成纤维细胞和MCF-7乳腺癌细胞进行自噬相关蛋白免疫荧光双染色实验中,在使用其它固定液染色效果不佳的情况下,可以选择应用丙酮/甲醇（1:1）固定液固定,再进行免疫荧光染色;根据不同实验需求相应选择更适宜的固定液,以达到最佳的荧光染色结果。     

真菌荧光染色液征文启事

正真菌荧光染色液自上市以来,已在全国多家二级、三级医院推广、使用。为客观地了解真菌荧光染色液在临床真菌检测方面的情况,收集更多的临床应用信息,促进该种染色液在基层医院的推广使用,现决定由《中国真菌学杂志》和南京汉瑞生物科技有限公司共同举办此次有奖征文活动。     

An Evaluation and Modification of Cole's Hematoxylin

Consistency in staining with an alum hematoxylin is possible by the routine use of fresh staining solutions. A modification of Cole's hematoxylin is so easily prepared that fresh staining solutions present no problem. The staining solution consists of 100 ml 1.2% aqueous KA1(SO₄)₂ .12 H₂O, 1 ml 10% alcoholic hematoxylin and 2 ml 1% iodine. Mix, place in paraffin oven overnight and stain sections 5 minutes. The three solutions can be kept as stock solutions for years.     

Curtis' Substitute for Van Gieson Stain

A triple staining method is described in which nuclear staining is by Weigert's hematoxylin. The cytoplasmic and collagen staining is effected by the Curtis substitute for Van Gieson, in which ponceau S is substituted for acid fuchsin. Nuclear staining is sharper than with Delafield's hematoxylin. The red of the collagen fibers is probably not subject to fading. Unlike Van Gieson, this method gives staining of reticular as well as collagen fibers. The advantages of the method are its simplicity and reliability. The use of this method is made possible by a new source of reliable samples of the ponceau S called for in this method.     

A Simple Method to Determine Hematoxylin Ripening

A simple spectroscopic method is proposed to control the “ripening” of Delafleld's hematoxylin solution during natural “ripening” or fast oxidation by different agents. The hematoxylin solution has ripened sufficiently for use with tissue sections staining if the absorption is 1.2-1.3 at 560 nm. The hematoxylin solution must first be diluted 15-fold using a 5% ammonium alum solution and the absorption must be measured in 0.5 cm cuvettes.     

Phloxine As An Histologic Stain, Especially In Combination With Hematoxylin

A staining schedule employing phloxine as a counter-stain to Erlich's acid hematoxylin is presented. Fixation is best with Zenker's fluid, although formalin can be used. The technic is similar to the standard hematoxylin-eosin formulae but because of the staining advantages of phloxine over eosin, the technic is simpler, and quicker, resulting in clearly differentiated sections which do not fade as soon as do eosin-stained slides. A brief summary of the uses of phloxine as a biological stain is given and its advantages over eosin are discussed.     

Mordant Blue 3: a Readily Availablx Substitute for Hematoxylin in the Routine Hematoxylin and Eosin Stain

Mordant blue 3 may be used as a suhstitute for hematoxylin in hematoxylin and eosin stains. The staining solution consists of 0.25 g dye, 40 ml of 10% iron dam, 5 ml of cone H₂SO₄, and 955 ml of dirtilled H₂O. Staining the is 5 minutes, followed by differentiation in acid water or acid alcohol. After blueing, the seaions are counterstained with emin. Results closely resemble the hematoxylin and eosin stain.     

A New Method Using a Modified Mayer's Hemalum at pH 6 for Demonstrating Mucous Neck Cells

The mucous neck cells of gastric glands were stained with a modified Mayer's hemalum adjusted to pH 6 with saturated aqueous lithium carbonate. One gram of hematoxylin was dissolved in 1000 ml distilled water and 200 mg sodium iodate, 3 g potassium alum, 50 g chloral hydrate and 1 g citric acid were added to the solution. Prior to staining, the solution was adjusted to pH 6 with saturated aqueous lithium carbonate. Bromine oxidation and urea abolished the alum hematoxylin reactivity of the mucous neck cells.     

A new method using a modified Mayer's hemalum at pH 6 for demonstrating mucous neck cells

The mucous neck cells of gastric glands were stained with a modified Mayer's hemalum adjusted to pH 6 with saturated aqueous lithium carbonate. One gram of hematoxylin was dissolved in 1000 ml distilled water and 200 mg sodium iodate, 3 g potassium alum, 50 g chloral hydrate and 1 g citric acid were added to the solution. Prior to staining, the solution was adjusted to pH 6 with saturated aqueous lithium carbonate. Bromine oxidation and urea abolished the alum hematoxylin reactivity of the mucous neck cells.     

Iron Hematoxylin Chelates. I. The Weil Staining Bath

The procedure for the preparation of the staining solution for the Weil myelin sheath stain was systematically varied in respect to pH, concentration, time, temperature and relative proportions of the ingredients. The results were explainable on the basis of the presence of a number of iron hematoxylin chelates in the staining bath. Compounds of the form of [Fe_nHem]^m+ are nuclear stains, those of the form of [FeHem_n]^m± are myelin sheath stains while the precipitate is probably [Fe_nHem_y]_x^m±. The following procedure for the stain is recommended. Mix equal portions of a 0.25% solution of ripened hematoxylin prepared from a 10% alcoholic solution and 1% ferric ammonium sulphate and use immediately. Preferably, the solutions should be at a temperature of about 5 C and the staining done in the refrigerator, but room temperature may be used. Higher temperatures are contraindicated. Hematein should not be substituted for ripened hematoxylin; the resulting stains are too weak to be usable. The absorbance of hematein is no measure of the concentration of the component that stains myelin sheaths. Hematein apparently consists largely of a sparingly soluble highly colored inactive compound.     

An Azocarmine stain for Differential cell Analysis of the rat Anterior Hypophysis

A method of staining is described which is especially designed to facilitate differentiation of the cell types of the rat anterior hypophysis. Fixation in Zenker-formol solution is recommended. Pre-staining of the nuclei by a short immersion in alum hematoxylin is followed by mordanting in anilin alcohol and a 45 minute period of staining in azocarmine solution at 60d`C. The counterstains, acid green and orange G, are dissolved in clove oil to avoid destaining of the azocarmine.     

On the Structure and Staining of Starch Grains of the Potato Tuber

Procedures are described for the differential staining of starch grains of the potato tuber with hematoxylin, and for double staining with safranin 0 and fast green FCF. The staining effects obtained are made possible by the action of a swelling agent. Staining with hematoxylin is preceded by the swelling action of formaldehyde. In staining with safranin 0 and fast green FCF, the formaldehyde is added to the staining solution. The results obtained are as follows: (1) a clavate-shaped, central structure composed of small particles arranged in definite layers is revealed within the grain; (2) differential staining of the locus of the grain and the lamellae alternating with it in a small region around the longitudinal axis of the grain; (3) the simultaneous staining and separation of the grain into a cone-shaped peripheral portion and a spherical body containing the locus of the grain which emerges from it; and (4) differential staining of a ring or layer of substance around a spherical refractive body within the grain.