邻苯二甲酸二丁酯对大鼠睾丸生化酶及脂质过氧化的影响

目的 :探讨邻苯二甲酸二丁酯 (DBP)对睾丸生化酶及脂质过氧化的影响 ,为接触人群早期诊断及生物学监测提供参考评价指标。　方法 :选择 6周龄雄性SD大鼠随机分成 4组 ,每组 16只。灌胃给予DBP ,剂量为 0 (对照组 )、2 5 0、5 0 0、10 0 0mg/ (kg·d)。于染毒 2周和 4周末分别处死 8只大鼠 ,收集睾丸及其他脏器和血清 ,以 1∶3的比例制备睾丸匀浆。测定血清和睾丸匀浆中生化酶及谷胱甘肽过氧化物酶 (GSHPx)的活性和谷胱甘肽 (GSH)的含量。　结果 :随DBP染毒剂量的增加 ,肝脏器系数明显上升 ,而睾丸脏器系数显著下降 (P <0 .0 1)。染毒 2周后 ,血清中GSHPx活性和睾丸匀浆中GSH水平下降趋势明显 ,而匀浆中GSHPx活性呈上升趋势 ,10 0 0mg/ (kg·d) 组与对照组相比 ,差异有显著性 (P <0 .0 5 )。染毒 4周后 ,血清中碱性磷酸酶活性呈上升趋势 ,血清和睾丸匀浆中山梨醇脱氢酶 (SDH )活性受到明显抑制 ,10 0 0mg/ (kg·d) 组与对照组相比差异均有显著性 (P <0 .0 1)。血清GSH水平呈上升趋势 ,10 0 0mg/ (kg·d) 组与对照组比较差异有显著性 (P <0 .0 5 )。　结论 :DBP可对机体产生明显的毒性作用 ,主要靶器官为肝脏和睾丸。脂质过氧化可能是DBP毒性作用的机制之一 ,SDH是DBP对睾丸毒性作用较为敏感的指标之一。     

氰戊菊酯体外对大鼠精子运动能力的影响

目的:观察氰戊菊酯(Fen)对大鼠精子运动能力的直接作用。方法:收集7只健康成年雄性SD大鼠附睾尾精子,用Fen进行体外染毒,剂量分别为1、4、16、64μmol/L,以Fen溶剂(二甲亚砜)作为对照组。在染毒1、2、4 h后用计算机辅助精子分析(CASA)系统对精子运动速度[曲线运动速度(VCL)、直线运动速度(VSL)、平均路径速度(VAP)、鞭打频率(BCF)]和运动方式[前向性(STR)、直线性(LIN)]进行检测,观察Fen对离体大鼠精子运动能力的影响。结果:Fen染毒1、2 h后,可见64μmol/L组的VSL、BCF、LIN和STR与对照组相比差异有显著性(P<0.01或P<0.05)。染毒4 h后,除上述指标外,VCL在16、64μmol/L组与对照组相比也呈现出明显的下降(P<0.01)。时间-效应关系分析显示,Fen(16、64μmol/L)染毒4 h组与染毒1 h组相比,VCL和STR显著下降(P<0.01或P<0.05)。结论:Fen可作用于大鼠附睾尾精子,并对大鼠精子运动有直接毒性效应。     

黄芪注射液对镉诱导大鼠精子畸形的拮抗作用

目的 :观察黄芪注射液拮抗氯化镉诱导的大鼠精子畸形作用。　方法 :将 30只SD雄性大鼠随机分成 5组 :低浓度黄芪组 (A1)、高浓度黄芪组 (A2 )、环磷酰胺组 (CP)、氯化镉组 (Cd)和对照组 (C)。预先连续 7d分别给A1组和A2 组大鼠腹腔黄芪注射液 5g/ (kg·d)和 10g/ (kg·d) ,Cd组和CP组大鼠分别腹腔注射等量蒸馏水作对照 ,之后连续 2 1dA1组、A2 组和Cd组大鼠分别同时腹腔注射氯化镉溶液 [0 .2mg/ (kg·d) ]。CP组大鼠给予 5 0mg/ (kg·d)腹腔注射染镉后第 2 2d处死大鼠 ,观察睾丸脏器系数、精子头计数、每日精子生成量、附睾尾精子计数和畸形率以及睾丸和附睾病理学。　结果 :A2 组睾丸脏器系数、睾丸精子头计数、每日精子生成量和附睾精子计数 [(5 .6 8±1.19)、(4 9.0 1± 8.78)× 10 6/g、(10 .2 5± 2 .30 )× 10 6/ (g·d)、(4 7.5 1± 2 2 .5 1)× 10 6/ml]明显高于Cd组 [(3.11± 0 .16 )、(37.5 9± 10 .6 3)× 10 6/g、(5 .31± 0 .32 )× 10 6/ (g·d)、(10 .89± 2 .4 5 )× 10 6/ml](P <0 .0 5或P <0 .0 1) ;A2 组大鼠精子畸形率 [(7.0 4± 0 .12 ) % ]明显下降 ,与Cd组 [(17.81± 1.5 5 ) % ]相比 ,差异有极显著性 (P <0 .0 1)。　结论 :黄芪注射液可拮抗氯化镉对生殖系统的损害作用 ,对防护     

L-肉碱对奥硝唑所致弱精子症大鼠的治疗作用

目的:探讨L-肉碱(LC)对奥硝唑(ORN)所致的弱精子症雄性大鼠的治疗作用。方法:性成熟雄性SD大鼠(200～230g)40只,随机均分为5组,连续灌胃20d,1次/d,每次1ml。A组(对照组):0.5%的羧甲基纤维素钠(溶剂);B组:ORN[400mg/(kg.d)];C组:ORN[400mg/(kg.d)]+LC[100mg/(kg.d)];D组:ORN[800mg/(kg.d)];E组:ORN[800mg/(kg.d)]+LC[100mg/(kg.d)]。将各组半数大鼠末次给药24h后,麻醉处死,取附睾,进行精子活力检测,并对附睾尾精子进行计数,剩余大鼠进行交配实验。结果:①与A组相比,B组,D组附睾头和附睾尾精子活力显著降低(P<0.05);精子数目显著减少(P<0.05)。②与B组相比,C组精子活力明显升高(P<0.05),精子数目明显增多(P<0.05),与A组比较无显著差异(P>0.05)。③E组大鼠的精子活力没有显著的提高,精子数目无明显增多,并且与D组相比没有差别(P>0.05)。结论:LC治疗后能提高ORN所致弱精子症大鼠的精子活力,增加精子密度。     

氰戊菊酯对大鼠精子及生殖激素的影响

目的探讨氰戊菊酯(Fen)对雄性大鼠精子计数、活力以及生殖激素的影响。方法成年雄性SD大鼠,分别以0、20、40、80mg/kg剂量的Fen连续灌胃染毒15和30d,按常规方法进行精子计数和精子活力检测,应用放射免疫法和化学发光免疫法测定大鼠血清卵泡刺激素(FSH)、黄体生成素(LH)、睾酮(T)、雌二醇(E2)和睾丸匀浆中T、E2水平。结果Fen染毒15d时,与0mg/kg组相比,40mg/kg剂量组精子数量明显减少(P<0.01),20和40mg/kg组睾丸匀浆中T水平显著降低(P<0.01,P<0.05),血清LH、FSH水平随染毒剂量的增加而升高,且FSH水平和染毒剂量有显著的剂量-效应关系(P<0.05);Fen染毒至30d时,各组间精子数量差异不显著,与0mg/kg组相比,40mg/kg剂量组(a+b)级精子活力显著降低(P<0.05),血清LH、FSH水平随染毒剂量的增加而升高,但差异不显著。结论Fen对雄性大鼠有明显的生殖毒性作用,能够改变血清和睾丸中的生殖激素水平。     

邻苯二甲酸二丁酯对青春期大鼠雄性生殖系统的影响

目的:探讨邻苯二甲酸二丁酯(DBP)对青春期大鼠雄性生殖系统的影响。方法:5周龄雄性SD大鼠用DBP灌胃染毒30d,染毒剂量包括:10、100、500mg/(kg.d),对照组仅给予溶剂(玉米油)。染毒结束后,检测睾丸、附睾、垂体、肝脏重量及脏器系数。苏木精-伊红(HE)染色法检测睾丸、附睾组织病理改变。放免法测定血清中黄体生成素(LH)、卵泡刺激素(FSH)、睾酮(T)水平。实时定量反转录PCR测定类固醇激素合成急性期调节蛋白(StAR)、增殖细胞核抗原(PCNA)、细胞色素P450胆固醇侧链裂解酶(P450scc)、清道夫受体(SR)mRNA的相对表达变化。结果:500mg/(kg.d)组中,睾丸及附睾重量明显减轻,垂体、肝脏的重量没有明显改变。100mg/(kg.d)和500mg/(kg.d)DBP导致了睾丸组织病理学改变。500mg/(kg.d)DBP组中血清T、LH水平降低,血清FSH升高。10mg/(kg.d)DBP组血清LH及FSH水平升高。500mg/(kg.d)DBP抑制了StAR、PCNAmRNA的表达。10mg/(kg.d)DBP提高了P450sccmRNA的表达水平,SRmRNA表达水平没有明显改变。结论:高剂量DBP对雄性生殖系统有明显毒性效应,较低水平的DBP改变了血清中促性腺激素LH的水平,并有可能以此来改变睾丸中P450sccmRNA的表达。     

虾青素在奥硝唑致少弱精子症大鼠氧化损伤中的保护作用研究

目的:探讨虾青素(AST)对奥硝唑(ORN)致少弱精子症大鼠精子质量的改善作用及其机制。方法:40只成年雄性SD大鼠,随机分成5组,每组8只。分别为A组(溶剂对照组):0.5%羧甲基纤维素钠溶剂+1 ml玉米油、B组(ORN低剂量造模组):ORN 400 mg/(kg·d)、C组(ORN高剂量造模组):ORN 800 mg/(kg·d)、D组(ORN低剂量造模+AST治疗组):ORN 400 mg/(kg·d)+AST 20 mg/(kg·d)、E组(ORN高剂量造模+AST治疗组):ORN 800 mg/(kg·d)+AST 20 mg/(kg·d),灌胃3周后水合氯醛腹腔麻醉大鼠;取1侧附睾尾部检测精子浓度和活力,另1侧附睾组织匀浆,检测谷胱甘肽过氧化物酶(GSH-Px)、谷胱甘肽还原酶(GR)、过氧化氢酶(CAT)、超氧化物歧化酶(SOD)活性及丙二醛(MDA)含量。结果:与A组相比,B组附睾尾精子活力,附睾GSH-Px、SOD活性显著降低,MDA含量显著上升(P﹤0.05);C组附睾尾精子活力、浓度、睾丸系数,附睾组织GSH-Px、GR、CAT、SOD活性均显著降低,而MDA含量显著上升(P﹤0.05)。AST治疗组:与B组相比,D组附睾尾精子活力和附睾组织SOD活性显著增加[(45.3±8.7)%vs(66.3±8.9)%;(116.7±25.3)U/mg prot vs(146.1±23.8)U/mg prot,P﹤0.05],而MDA含量显著下降[(1.68±0.45)nmol/mg prot vs(1.19±0.42)nmol/mg prot,P﹤0.05];与C组相比,E组实验后体重增量、精子活力显著增加,而MDA含量显著下降[(89.0±9.5)%vs(99.9±4.1)%;(17.9±3.5)%vs(27.3±5.3)%;(2.03±0.30)nmol/mg prot vs(1.52±0.41)nmol/mg prot,P﹤0.05]。结论:AST可提高ORN致大鼠少弱精子症模型的精子质量,其机制可能是提高了大鼠附睾的抗氧化能力。     

邻苯二甲酸二-(2-乙基)己酯致小鼠隐睾睾丸和附睾的组织病理学改变

目的 :探讨邻苯二甲酸二 (2 乙基 )己酯 (DEHP)引起的小鼠隐睾睾丸和附睾的组织病理学改变。　方法 :妊娠KM小鼠 4 0只 ,随机分成 5组 ,分别为正常对照组 8只、玉米油对照组 8只、己烯雌酚 (DES)组 8只、DEHP低剂量组 [DEHP 10 0mg/ (kg·d) ]9只和DEHP高剂量组 [DEHP 5 0 0mg/ (kg·d) ]7只。自妊娠第 12d开始到分娩后 3d ,分别持续经口给予DEHP 10 0mg/ (kg·d)、5 0 0mg/ (kg·d)和DES 10 0 μg/ (kg·d)及玉米油 ,观察仔代雄小鼠的隐睾发生率及隐睾睾丸和附睾的组织病理学改变。　结果 :DEHP 5 0 0mg/ (kg·d)组染毒小鼠的隐睾发生率显著增高 ,睾丸和附睾的体积明显减小、重量减轻 ;睾丸生精上皮发育明显异常 ,精曲小管变薄、萎缩 ,间质细胞异常增生 ,电镜下其隐睾精曲小管上皮和间质细胞均出现明显的超微结构改变。同时附睾管腔中的精子数显著减少甚至缺乏。　结论 :高剂量 [5 0 0mg/ (kg·d) ]DEHP可能具有与DES类似的作用 ,是一种诱发隐睾的重要因子。小鼠在孕期及哺乳期接触DEHP后可引起雄性仔鼠性分化异常 ,诱导隐睾发生、睾丸生精上皮损害和生精过程障碍 ,从而对雄性仔鼠生育力产生不利影响。以上作用存在明确的量 效关系。     

奥硝唑对大鼠精子的影响及作用机制探讨

目的: 探讨奥硝唑降低大鼠精子活动力的影响因素及作用机制。　方法: 20只SD大鼠随机分为低剂量组(n=5)、高剂量组(n=8)和正常对照组(n=7)。低剂量组和高剂量组分别给予 200、400mg/kg奥硝唑灌胃,正常对照组给予0. 5%羧甲基纤维素钠灌胃,连续 20d。末次给药 24h后戊巴比妥钠麻醉,取附睾及睾丸,观察精子密度、精子活动力;检测睾丸、附睾组织匀浆中乳酸脱氢酶、α 葡糖苷酶、丙二醛、果糖的浓度变化。观察睾丸与附睾有无形态学改变。　结果: 奥硝唑 200、400mg/kg,连续灌胃给药 20d,能显著降低精子活动力(P<0. 01),对精子密度无明显影响(P>0. 05)。与正常对照组比较,高剂量组乳酸脱氢酶水平明显降低 (P<0. 01),丙二醛含量明显升高(P<0. 05)。　结论: 奥硝唑通过增加细胞脂质过氧化产物丙二醛,抑制附睾中的能量转换酶或非蛋白类物质使精子细胞受损、活动力降低,这是奥硝唑致弱精子症动物模型的作用机制之一。     

增精颗粒对大鼠附睾精子质量的影响

目的 :观察中药增精颗粒 (ZJG)对不育大鼠附睾精子质量的影响 ,探讨ZJG改善附睾精子质量的机制。　方法 :将 4 0只雷公藤多甙 (GTW )实验性SD雄性大鼠不育模型随机分成 4组 ,每组 10只 ,包括不育组 [GTW 2mg/(ml·10 0g) ]和ZJG高、中、低剂量组 [高 :ZJG0 .6 7g/(ml·10 0g) +GTW 2mg/(ml·10 0 g) ,中 :ZJG0 .33g/(ml·10 0g) +GTW 2mg/(ml·10 0 g) ,低 :ZJG0 .17g/(ml·10 0 g) +GTW 2mg/(ml·10 0g) ],另设正常组 (对照 ) 10只(等量的 1%羧甲基纤维素钠溶液 )。整个实验周期 6周 ,由 3周造模期和 3周用药期组成。ZJG各组按指定的剂量用药 3周 (实验第 4 3d)观察大鼠附睾精子质量、附睾腺管壁厚度及主要性腺器官系数的变化。　结果 :ZJG高、中、低剂量组附睾精子密度分别为 (5 9.6± 3.72 )、(6 3.3± 5 .70 )、(6 9.7± 6 .91)× 10 6/ml,精子活率分别为 (6 5 .4±6 .33) %、(6 9.3± 10 .96 ) %和 (72 .6± 9.6 1) % ,畸形率分别为 (5 2 .3± 7.4 7) %、(4 6 .2± 7.73) %和 (33.2± 7.97) % ,与不育组 [精子密度 (13.1± 6 .81)× 10 6/ml,精子活率 (7.6± 5 .87) % ,畸形率 (77.2± 8.75 ) % ]相比 ,ZJG各组差异均有显著性 (P <0 .0 5 ) ,与正常组 [精子密度 (75 .6± 10 .82 )× 10 6/ml,精子?     

Effects of Roselle and Ginger on cisplatin-induced reproductive toxicity in rats

Aim:To evaluate the protective effects of Hibiscus sabdariffa(Roselle)and Zingiber officinale(Ginger)againstcisplatin-induced reproductive toxicity in rats and to study the mechanisms underlying these effects.Methods:Ethanol extracts of H.sabdariffa or Z.o fficinale[1g/(kg.day)]were given p.o.to male albino rats for 26 days,which began 21 days before a single cisplatin i.p.injection(10 mg/kg body weight).Results:Extracts of H.sabdariffaand Z.officinale reduced the extent of cisplatin-induced sperm abnormality and enhanced sperm motility.Bothextracts restored the control level of malondialdehyde(MDA)(lipid peroxidation marker)in the cisplatin-treated testis.The cisplatin injection induced decline in the levels of superoxide dismutase(SOD),reduced glutathione(GSH)andcatalase(CAT)were significantly reversed to control levels in groups where cisplatin was preceded by the administra-tion of either H.sabdariffa or Z.officinale.Conclusion:Both H.sabdariffa and Z.officinale treatment increasedthe activities of testicular antioxidant enzymes and restored sperm motility of cisplatin-treated rats.The protectiveeffects of tested plants are,therefore,suggested to be mediated by their potent antioxidant activities.(Asian J Androl2006 Sep;8:607-612)     

Effects of sauna on sperm movement characteristics of normal men measured by computer-assisted sperm analysis

The effects of sauna exposure on sperm movement characteristics and other semen parameters were evaluated using computer-assisted sperm analysis (CASA). A significant ( p  < 0.01) decrease in average path velocity (VAP), curvilinear velocity (VCL) and amplitude of lateral head displacement (ALH) was found after exposure to sauna for 2 weeks. The altered parameters returned to their original values within 1 week after cessation of sauna exposure. Mean values for semen volume, sperm count, percentage motility, sperm morphology and sperm penetration assay (SPA) were not statistically different during and after sauna, when compared to the corresponding control values. The results suggest that increasing scrotal temperature by sauna causes a reversible decrease in sperm movement parameters.     

CASA as an aid to selecting sperm suspensions for artificial insemination in Callithrix jacchus

The ability to use sperm motility parameters, obtained by computer-assisted sperm motility analysis (CASA), as an aid to selecting sperm samples for artificial insemination (AI) would have considerable benefits for commercial organizations and for the captive breeding of endangered species. In this study the Hobson sperm tracker (HST) was validated for use with spermatozoa from Callithrix jacchus, the common marmoset, by comparing values for straight line velocity by CASA with those obtained by direct measurement of sperm tracks. Using the settings established during validation, ejaculated and epididymal spermatozoa were analysed with the HST. The range of values for velocity parameters were used to establish expected motility profiles for the two types of spermatozoa as follows: for epididymal spermatozoa (concentration 2.2 - 85.8 x 10(6) spermatozoa/mL) VCL 109.8-155.9, VSL 75.2-141.5, VAP 85.8-142.1, MAD 13.7-40.7, ALH 3.8-7.8, BCF 1.4-4.2, LIN 40.5-91.1% and STR 70.1-97.1%; for ejaculated spermatozoa (concentration 3.2-82.0 x 10(6) spermatozoa/mL) VCL 89.6-136.7, VSL 69.6-110.3, VAP 74.5-121.9, MAD 19.2-29.3, ALH 3.0-9.9, BCF 2.8-5.5., LIN 65.4-85.3% and STR 93.8-97.7%. Epididymal spermatozoa from males which were not sexually active had significantly lower values for VCL, VSL and VAP, while values for MAD were significantly higher than for spermatozoa from sexually active males (p < 0.031). Sperm concentration affected motility parameters significantly. Although motility parameters differed according to the batch of medium used, the differences were not statistically significant. Epididymal sperm samples had significantly higher VCL, VSL and VAP but lower BCF and LIN than ejaculated sperm samples of the same concentration diluted in the same batch of medium, while MAD, ALH and STR were not different. Urine contamination significantly reduced VCL, VSL and VAP (p < 0.008, < 0.016 and < 0.008, respectively, sample size = 7) whereas MAD, ALH, BCF, LIN and STR were not affected. Therefore CASA could be useful in screening ejaculates for use in Al to eliminate samples with unusual motility patterns.     

Antispermatogenic activity of Morinda lucida extract in male rats

Aim： To investigate the effect of Morinda lucida Benth （Rubiaceae） on the reproductive activity of male albino rats. Methods： Two groups of rats were treated with 400 mg/（kg.d） of Morinda lucida leaf extract for 4 and 13 weeks, respectively. The control rats received the vehicle. All the treated rats had corresponding recovery groups. At the end of each experimental period, animals were killed and organ weights, sperm characteristics, serum testosterone levels, histology of the testes and fertility were assessed. Results： Morinda lucida leaf extract did not cause any changes in body and somatic organ weights, but significantly increased the testis weight （P 〈 0.05）. The sperm motility and viability, and the epididymal sperm counts of rats treated for 13 weeks were significantly reduced （P 〈 0.05）. Sperm morphological abnormalities and serum testosterone levels were significantly increased （P 〈 0.05）. There were various degrees of damage to the seminiferous tubules. The extract reduced the fertility of the treated rats by reducing the litter size. Reversal of these changes, however, occurred after a period of time. Conclusion： The extract of Morinda lucida has reversible antispermatogenic properties.     

青春期前邻苯二甲酸二丁酯持续暴露对大鼠睾丸发育的影响

目的:研究青春期前邻苯二甲酸二丁酯(DBP)持续暴露对睾丸发育的影响。方法:21日龄断乳青春期前雄性SD大鼠随机分为对照组(n=24)和实验组(n=54),每日分别用玉米油或DBP玉米油溶液灌胃,DBP暴露剂量分别为50mg/(kg.d)(低剂量组,n=18)、200mg/(kg.d)(中剂量组,n=18)和600mg/(kg.d)(高剂量组,n=18),各组动物持续暴露14、21、28d后(即PND35,PND42和PND49)断颈处死。记录大鼠体重变化,检测睾丸重量和体积、附属性器官重量及附睾精子,化学发光免疫分析法检测血清睾酮含量,苏木精-伊红染色观察睾丸组织形态学变化,测量生精小管平均直径及进行睾丸活检评分。结果:低剂量组PND35少量生精小管生精细胞排列紊乱,PND42和PND49睾丸、附属性器官发育及生精功能正常;中剂量组PND35和PND42生精细胞排列紊乱、数目减少,PND49生精小管内可见各级生精细胞及精子,睾丸未见萎缩,附属性器官发育正常;高剂量组大鼠体重增长减缓,血清睾酮水平低下,睾丸生精小管变性萎缩,生精上皮发育阻滞,生精细胞大量凋亡坏死,青春期大鼠睾丸萎缩,无精子,附睾、前列腺和精囊等附属性器官发育迟缓。结论:青春期前DBP持续暴露可损害睾丸组织发育和正常生精功能形成,其毒性效应具有剂量依赖性,高剂量DBP持续暴露引起的睾丸毒性在青春期前发育过程中不可修复,而低中剂量暴露引起的睾丸毒性在PND49之前可完全或部分逆转性恢复。     

人类精液冷冻前后精子运动变化的计算机辅助分析

目的 :利用计算机辅助精液分析 (CASA)系统分析冷冻前后人类活动精子的运动参数 ,并观察相关参数的变化规律。　方法 :2 38份精液样本在冷冻前和复苏后均采用CASA分析其运动参数。　结果 :复苏后精子活动率下降 ;除精子鞭打频率 (BCF)外 ,冷冻前与复苏后全部精子运动参数呈显著正相关且差异存在显著性 ;平均路径速度 (VAP)、直线速度 (VSL)、曲线速度 (VCL)下降 ,精子头侧摆幅 (ALH)下降 ,但直线性 (LIN)、前向性 (STR)升高。　结论 :CASA系统可对冻融前后精子运动参数进行客观细致的分析 ,有一定的临床应用价值。     

司机职业对男性不育患者精子活力和动力学参数的影响及相关性研究

目的 探讨乌鲁木齐地区司机职业对男性不育患者精子活力和动力学参数的影响及相关性研究.方法 应用WLJY-9000型精子质量检测系统对157例不育男性(司机组72例、非司机组85例)和125例正常生育男性精子的直线运动速度(VSL)、曲线速度(VCL)、平均路径速度(VAP)、平均移动角度(MAD)、侧摆幅度(ALH)、鞭打频率(BCF)、前向性(STR)、直线性(LIN)、摆动性(WOB)精子活力及其分级进行检测并分析其相关性.结果 不育组与正常生育组相比,精子活力、VSL、VCL、VAP、LIN和STR显著降低(P<0.05或P<0.01);司机组与非司机组相比,精子活力、VSL、VCL、VAP和MAD显著降低(P<0.05或P<0.01),而BCF显著升高(P<0.01);驾龄10年～组与0年～和5年～两组相比,精子活力、VSL、VCL、VAP、MAD、LIN、WOB和STR显著降低(P<0.05或P<0.01),而BCF显著升高(P<0.01);司机职业男性不育患者精子活力与VSL、VCL、VAP有显著正相关性,而与BCF有显著负相关性.结论 (1)司机职业可引起男性精子活力和动力学参数异常,驾车车龄对男性精子质量的影响存在时效关系,长时间驾车可能是引起男性不育的重要原因之一;(2)VSL、VCL、VAP和BCF是反映司机职业不育男性精子活力的有效指标.     

Comparison of the Sperm Quality Analyzer IIC variables with the computer-aided sperm analysis estimates

Sperm Quality Analyzer (SQA) IIC, an upgrade version, is an inexpensive device and provides a quantitative estimation of sperm motility, whereas the use of computer-aided sperm analysis (CASA) provides high precision and provision of quantitative data on sperm kinetics. The aim of the present study was to evaluate if the SQA IIC variables correlated with the CASA estimates. Semen quality analysis of 71 fresh semen samples was performed using SQA IIC and CASA. Total sperm concentration, percentage of progressively motile sperm, percentage of normal morphology, motile sperm concentration, sperm motility index (SMI) and functional sperm count (FSC) determinations were performed using SQA IIC. Sperm concentration, sperm motility, and sperm motion variables including amplitude of lateral head displacement (ALH), beat cross frequency (BCF), curvilinear velocity (VCL), straight line velocity (VSL), average path velocity (VAP), linearity (LIN=VSL/VCL), and straightness (STR=VSL/VAP) were evaluated simultaneously on the same semen samples using CASA. The sperm characteristics were compared between SQA IIC and CASA. There were significant correlations of sperm concentration (r=0.634, p < 0.0001), sperm motility (r=0.697, p < 0.0001), and motile sperm concentration (r=0.757, p < 0.0001) between the two devices. Both SMI and FSC significantly correlated with eight CASA estimates, including sperm concentration, sperm motility, motile sperm concentration, ALH, VCL, VSL, VAP, and Rapid. SQA IIC is simple and easy to use. Moreover, the SQA IIC variables well correlated with the CASA estimates. As a screening test for semen quality, SQA IIC is considered as useful in the management of male infertility.