计算溶液所需的质量、体积或浓度。
BioReagent,生物染色剂,用于显微镜 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
-20°C储存。超低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
临床上可通过检测精子膜的完整性来评价精子的存活率,当精子处于低渗溶液时水分子可通过精子膜进入精子,使精子体积增大而膨胀,尤以正常精子尾部的膨胀比较明显,而膜不完整或死精子一般表现为不膨胀。
精子活体检测试剂(低渗膨胀法)也称作精子低渗膨胀液,由枸橼酸纳、D-果糖等组成,利用上述低渗膨胀原理,能够很好的分析精子存活率。该试剂盒仅适用于科研领域,不适用于临床诊断或其他用途。
操作步骤
1、取洁净小试管,加1ml精子低渗膨胀液,37℃预温5min。
2、加入0.1ml液化精液,轻轻搅匀,37℃孵育30~60min。
3、相差显微镜下观察,膨胀精子为尾部形态发生变化的精子,即活精子。
| 活精子 | 尾部形态发生变化 |
| 死精子 | 未变化 |
4、计数200个精子,计算膨胀精子(活精子)占200个精子的百分率。
参考区间:排精30~60min内,70%以上的精子应为活动精子。低渗膨胀实验应有60%以上精子出现尾部膨胀。
注意事项
1、精液标本一旦液化应立即检测精子存活率,最好在30min内使用,在任何情况下都不能超过1h,以免因脱水或温度变化导致精子失活而使染色检测结果不准。
2、为避免反复冻融,导致试剂失效,可在第一次溶解后分装成1ml一份的小包装冻存。
3、试剂开封后请尽快使用,以防影响后续实验效果。
4、为了您的安全和健康,请穿实验服并戴一次性手套操作。
Clinically, the integrity of the sperm membrane can be assessed to evaluate sperm vitality. When sperm are placed in a hypo-osmotic solution, water molecules enter the sperm through the membrane, causing an increase in sperm volume and swelling. This swelling is particularly evident in the tails of normal sperm. In contrast, sperm with impaired membranes or dead sperm typically do not swell.
Sperm Vitality Detection Solution (HOS Method), also known as Sperm Hypo-osmotic Swelling Solution, is composed of sodium citrate, D-fructose, and other components. Utilizing the principle of hypo-osmotic swelling described above, it effectively analyzes sperm survival rates. This kit is intended for research use only and is not suitable for clinical diagnosis or other purposes.
Procedure
1. Take a clean small test tube and add 1 mL of Sperm Hypo-osmotic Swelling Solution. Pre-warm at 37°C for 5 minutes.
2. Add 0.1 mL of liquefied semen sample. Mix gently and incubate at 37°C for 30 to 60 minutes.
3. Observe under a phase-contrast microscope. Sperm exhibiting swelling are identified by changes in tail morphology and are considered viable.
| Viable Sperm | Dead Sperm |
| Tail morphology shows changes | No change |
4. Count 200 sperm and calculate the percentage of swollen sperm (viable sperm) among them.
Reference Range: Within 30-60 minutes after ejaculation, over 70% of sperm should be motile. In the Hypo-osmotic Swelling Test, over 60% of sperm should exhibit tail swelling.
Precautions
Sperm vitality should be assessed immediately after semen liquefaction. It is best to perform the test within 30 minutes, and under no circumstances should it exceed 1 hour after liquefaction. Delays may lead to sperm deactivation due to dehydration or temperature changes, resulting in inaccurate results.
To avoid repeated freeze-thaw cycles, which may compromise the reagent's efficacy, aliquot the solution into 1 mL portions after the first thaw and store frozen.
Use the reagent promptly after opening the vial to prevent potential effects on subsequent experimental results.
For your safety and health, please wear a lab coat and disposable gloves during operation.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | S1506743 |
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