不同负荷运动对雄性肥胖模型小鼠性激素和精子质量的影响

BACKGROUND: Overweight and obesity can lead to a disorder of sex hormone in men. The increase in female hormone levels may inhibit the synthesis and secretion of male hormone, increase fat accumulation and form a vicious circle. Exercise can effectively reduce body fat. OBJECTIVE: To investigate the effects of different exercise loads on sex hormone and the quality of sperm in obese male mice. METHODS: Weanling male C57BL/6J mice were divided into normal control group and obesity group. Mice in the obesity group were given high fat diet for 10 weeks to establish mouse model of obesity. The amount of food and water was recorded daily. Body weight was weighed once every week. After model induction, models were assigned to obesity moderate load exercise group and obesity high load exercise group. These models did exercises for 8 weeks. Body length was measured. Body weight, abdominal fat, testis, epididymis and seminal vesicle were weighed. Sperm activity and motility were observed by the sperm counting method in the epididymis tail. Enzyme linked immunosorbent assay was used to measure serum progesterone, follicle stimulating hormone, testosterone and estradiol.  RESULTS AND CONCLUSION: Compared with the normal control group, body weight, abdominal fat weight, and lee’s index were increased (P < 0.01); the coefficient of testis and seminal vesicle were significantly decreased (P < 0.01); serum levels of luteinizing hormone, follicle stimulating hormone and testosterone were significantly decreased and estradiol level was significantly increased (P < 0.05); sperm count and activity were significantly decreased in the obesity group (P < 0.01). Compared with the obesity group, body weight, abdominal fat weight and lee’s index were significantly decreased (P < 0.05 or P < 0.01); the coefficient of testis and seminal vesicle were significantly increased in the obesity moderate load exercise group and obesity high load exercise group (P < 0.05 or P < 0.01). Serum luteinizing hormone, follicle stimulating hormone and testosterone levels were significantly increased (P < 0.05 or P < 0.01); estradiol levels were significantly decreased (P < 0.05); sperm count and activity were significantly increased (P < 0.01, P < 0.05) in the obesity moderate load exercise group. Compared with the obesity moderate load exercise group, abdominal fat weight and lee’s index were significantly reduced (P < 0.05); serum luteinizing hormone, follicle stimulating hormone, testosterone, sperm count and activity were decreased in the obesity high load exercise group (P < 0.01). These results indicate that long-term high fat diet leads to early obesity in males, inhibits the development of the reproductive gland and reproductive organs, and causes the decrease of the level of male hormone and sperm quality. Long-term moderate load exercise effectively reduces body fat, improves the inhibitory effect on male reproductive organs and glands, and relieves the negative effect of obesity on reproductive function. The effect of long-term large load exercise on reducing body fat is better than medium load exercise, but it has little effect on improving the level of male hormone in obese mice or on relieving the negative effect of obesity on reproductive function, even has a tendency to aggravate.       

胎盘早剥患者血清抗氧化物水平与病情、产后出血关系

目的：探讨胎盘早剥患者血清抗氧化物水平变化及其与病情严重性、产后出血的关系。方法：选取2019年1月-2022年3月本院妇产科收治的胎盘早剥患者104例作为观察组,产前体检健康孕妇120例为对照组。入院后均检测血清总超氧化物歧化酶(TSOD)、尿酸(UA)、白蛋白(ALB)浓度并比较。采用Pearson相关及Spearman相关法分析血清抗氧化物水平与胎盘早剥病情、产后出血量关系,采用受试者工作特征曲线(ROC)分析血清抗氧化物对产后出血的预测效能。结果：观察组血清TSOD(78.66±6.69 U/ml)、UA(358.62±35.62μmol/L)水平均高于对照组(65.47±5.10 U/ml、265.69±25.64μmol/L),ALB(34.20±3.36 g/L)水平低于对照组(56.65±5.62 g/L)。Ⅱ度胎盘早剥孕妇血清TSOD、UA水平均高于0～Ⅰ度胎盘早剥孕妇,ALB水平均低于0～Ⅰ度胎盘早剥孕妇;产后出血量>300 ml孕妇血清TSOD、UA水平均高于产后出血量≤300 ml孕妇,ALB水平低于产后出血量≤300 ml孕妇(均P<0.05)。胎...     

脐疗法在慢性荨麻疹中的应用

正荨麻疹,中医学称为"瘾疹""鬼风疙瘩",是由于皮肤、黏膜小血管扩张及通透性增加出现的一种局限性水肿反应。临床上特征性表现为大小不等的风团伴瘙痒,可伴有血管性水肿[1]。慢性荨麻疹是指风团每周至少发作2次,持续≥6周者[2],少数慢性荨麻疹患者也可表现为间歇性发作。慢性荨麻疹病因复杂,反复发作,迁延难愈,严重影响患者的生活质量。脐疗是将药物做成适当的剂型(如糊、散、丸、膏等)敷于脐部,或在     

河南食管癌高、低发区无症状人群食管上皮挖空细胞变化

目的 :探讨食管癌高低发区无症状居民食管上皮挖空细胞的分布差异及其与病变的关系 ,进一步了解挖空细胞在食管上皮癌变中的意义。方法 :人群普查 ,纤维内镜粘膜活检和组织病理学及计量分析 ,了解食管上皮不同病变中的挖空细胞分布特征。结果 :食管癌高低发区居民食管正常上皮及各级病变组织中均存在不同程度的挖空细胞。挖空细胞主要分布在食管上皮的中下 1/ 3区域。高发区居民食管中下段活检组织上皮下 1/ 3的挖空细胞检出率明显高于食管上皮的中 1/ 3区域 (P <0 .0 5 ) ,低发区居民也观察到相似的结果。高发区 ,正常上皮挖空细胞阳性率明显高于基底细胞过度增生和间变 ,阳性率随病变进展 ,明显下降 ,低发区也呈现相似的变化 ;高低发区食管中段组织挖空细胞密度分别为 (2 3.95± 14 .0 5 )mm-2 和 (2 2 .95± 10 .88)mm-2 ,下段分别为 (31.4 0± 2 4 .75 )mm-2 和 (30 .15±19.4 5 )mm-2 ;高低发区正常上皮分别为 (30 .73± 2 0 .83)mm-2 和 (2 7.0 0± 16 .86 )mm-2 ,基底细胞过度增生组织分别为 (2 4 .6 3± 19.6 2 )mm-2 和 (2 6 .0 8± 15 .4 5 )mm-2 ,各组间差异均无统计学意义。结论 :挖空细胞是食管癌高低发区居民食管上皮常见的形态学变化 ,挖空细胞主要分布在上皮的下 1/ 3,并随病变进展呈升     

人贲门癌WAF－1基因和P53肿瘤抑制基因表达的初步研究

采用免疫组织化学方法，初步观察３４例手术切除后的贲门癌组织ＷＡＦ－１基因蛋白（Ｐ２１）的表达状况并与Ｐ５３肿瘤抑制基因蛋白的免疫组化结果进行比较。贲门癌组织Ｐ２１免疫组化阳性率为７４％；癌细胞Ｐ２１免疫反应强度与正常细胞相似。对癌旁上皮的观察发现在贲门增     

食管与贲门双源癌蛋白质指纹模型的建立及肿瘤标志的筛选

目的:建立食管与贲门双源癌的蛋白质组指纹诊断模型,筛选食管贲门双源癌相关蛋白,为建立食管贲门双源癌肿瘤标志提供理论基础。方法:采用表面增强激光解吸离子化飞行时间质谱仪(SELDI-TOF-MS)技术对19例食管贲门双源癌(双源癌组)和50位健康人(对照组)的血清进行蛋白质组的对比研究。根据差异性蛋白质的质核比(相对分子质量)从SWISS-PROT蛋白质数据库中筛选并确定相关候选蛋白和基因。并通过RT-PCR方法进一步分析这些关键候选基因在食管贲门双源癌组织中表达变化特征。结果:以相对分子质量2.86621×103、5.10330×103、6.59765×103、7.93155×103、9.31196×103和4.11399×103的6种蛋白质组成的决策树模型对双源癌组诊断的准确率、敏感度和特异度分别为78.26%、73.68%和80%。相对分子质量为5.34052×103和5.92132×103的蛋白质查询结果为COX7c及Beta-defensin-1-2-3,在双源癌的食管癌组织和贲门癌组织的阳性率分别为60%(3/5)、60%(3/5)、60%(3/5)和40%(2/5),对照组食管和贲门正常上皮组织均为阴性。结论:以相对分子质量2.86621×103、5.10330×103、6.59765×103、7.93155×103、9.31196×103和4.11399×103的6种蛋白质组成的决策树模型,可作为食管贲门双源癌的蛋白诊断模型,COX7c及Beta-defensin-1-2-3与食管贲门双源癌密切相关,为食管贲门双源癌肿瘤标志筛选提供重要线索。     

青年食管鳞癌和贲门腺癌组织中Ras相关区域家族1A蛋白的表达

目的:探讨青年食管鳞癌(SCC)和贲门腺癌(GCA)组织中Ras相关区域家族1A(RASSF1A)蛋白的表达变化特征.方法:采用免疫组织化学检测河南省林州地区青年SCC和GCA组织RASSF1A蛋白表达,将癌组织阳性结果分为弥漫型、灶性、镶嵌型,并分析其与临床病理变化的关系.结果:SCC和GCA组织中RASSF1A阳性表达频率均较高(83%(10/12)vs 89%(8/9)),与对应正常组织中的表达差异无统计学意义(P＞0.05),但表达类型并不相同.食管鳞癌以镶嵌型(4例)和灶性(4例)较多,弥漫型(2例)次之;食管正常组织以乳头性(3例)和灶性(3例)较多,镶嵌型(2例)次之,无弥漫型表达;贲门腺癌组织以灶性为主(6例),镶嵌型(2例)次之,无弥漫型表达;贲门正常组织以弥漫型(5例)较多,另有灶性(4例)表达.RASSF1A蛋白表达与SCC和GCA的转移、分化和浸润程度无相关性.结论:RASSF1A蛋白阳性表达是河南高发区青年食管鳞癌和贲门腺癌组织中常见的分子事件,可能在食管和贲门癌变过程中起一定作用.     

某医院住院尘肺患者的自我护理能力、健康促进行为及其影响因素研究

目的分析尘肺病人的自我护理能力、健康促进行为的现状,探讨其影响因素。方法抽取山东省某职业病医院住院治疗的148例尘肺患者,使用自我护理能力测定量表(the Exercise of Self-Care Agency scale,ESCA)和健康促进生活方式量表Ⅱ(the Health Promotion Lifestyle Profile, HPLPⅡ)对上述研究对象进行问卷调查,采用逐步回归分析法分析尘肺患者自我护理能力、健康促进行为的影响因素。结果尘肺病患者自我护理能力总分为(94.56±19.69)分,健康行为总分为(114.29±15.63)分。影响尘肺患者自我护理能力的主要因素为家庭氧疗、文化程度、年龄和月收入,家庭氧疗、文化程度和月收入均为正面影响因素,年龄是负面影响因素;影响患者健康行为的主要因素为康复锻炼、家庭氧疗、文化程度和年龄,康复锻炼、家庭氧疗和文化程度均为正面影响因素,年龄是负面影响因素。结论研究对象自我护理能力和健康促进行为处在中等水平。增加家庭吸氧、做康复锻炼可提高病人的自我护理能力或健康促进行为,对文化程度低、年龄大的患者应更加耐心、细心地进行健康教育,以提高病人自我护理能力和健康促进行为。     

射频消融治疗局部晚期胰腺癌的研究进展

 胰腺癌作为一种常见的消化系统肿瘤,其恶性程度高,且早期多无明显的临床症状与体征,诊断困难,确诊时往往已有远处转移,丧失了手术机会。目前,局部晚期胰腺癌患者,首选以吉西他滨为基础药物的全身化疗,而射频消融(radiofrequency ablation,RFA)作为一种新型姑息性治疗手段,主要适用于无远处转移病灶,且原发病灶无法手术切除,或对化疗不敏感的局部晚期胰腺癌患者。RFA具有微创性、精准性以及大量的已被临床前和临床研究证实治疗局部晚期胰腺癌的安全性与有效性。本文就RFA治疗局部晚期胰腺癌的现状及研究进展进行相关综述。     

石上柏颗粒对肝癌模型小鼠瘤组织中Cyclin D1、CKS表达的影响

目的:研究石上柏颗粒对肝癌模型小鼠瘤组织中Cyclin D1、CKS表达的影响。方法:选取48只肝癌模型小鼠,随机分为为模型组、氟尿嘧啶组、石上柏颗粒组、联合给药组,每组各12例。氟尿嘧啶组给予氟尿嘧啶20 mg·kg~(-1)灌胃,石上柏颗粒组给予石上柏颗粒120 mg·kg~(-1)灌胃,联合给药组同时灌胃氟尿嘧啶20 mg·kg~(-1)和石上柏颗粒120mg·kg~(-1),模型组小鼠给予同体积纯净水,各组小鼠连续灌胃不同药物4周,比较各组小鼠治疗期间肿瘤生长情况,采用RT-PRC法测定各组小鼠瘤组织中Cyclin D1 mRNA、CKS mRNA的表达,采用West-blot法测定瘤组织中Cyclin D1、CKS蛋白的表达。结果:(1)给药1周、2周、3周、4周时氟尿嘧啶组小鼠移植瘤体积均较模型组小鼠显著降低(P0.05),给药2周、3周、4周时石上柏颗粒组小鼠移植瘤体积均较模型组小鼠显著降低(P0.05),给药3周、4周时联合给药组移植瘤体积均较氟尿嘧啶组小鼠显著降低,差异有统计学意义(P0.05);(2)给药4周时氟尿嘧啶组、石上柏颗粒组和联合给药组小鼠瘤组织Cyclin D1 mRNA、CKS mRNA均较模型组显著降低(P0.05),而联合给药组小鼠瘤组织Cyclin D1mRNA、CKS mRNA较氟尿嘧啶组显著降低,差异有统计学意义(P0.05);(3)给药4周时,氟尿嘧啶组、石上柏颗粒组和联合给药组小鼠瘤组织Cyclin D1和CKS蛋白均较模型组显著降低(P0.05),而联合给药组小鼠瘤组织Cyclin D1和CKS蛋白较氟尿嘧啶组显著降低,差异有统计学意义(P0.05)。结论:石上柏颗粒有显著抗肝癌作用,且可以增强氟尿嘧啶的疗效,其抗肝癌作用可能与其抑制Cyclin D1和CKS表达有关。