低铅染毒大鼠体内脂质过氧化及抗氧化水平改变

目的：观察低剂量铅染毒后大鼠体内脂质过氧化水平改变,为铅的毒作用机制研究提供依据。方法：以醋酸铅为受试物,雄性Wistar大鼠为受试对象,分别观察其脏器脂质过氧化水平改变。结果：低铅染毒后,大鼠各脏器超氧化物歧化酶（SOD）、谷胱苷肽过氧化物酶（GSH－Px）及过氧化脂质（LPO）均有不同程度改变（P＜0.05,P＜0.01）,而巯基（－SH）含量仅肝脏变化较明显。结论：较低剂量的铅即可引起体内脂质过氧化水平的改变,而这种变化可能是铅的毒作用途径之一。     

三氧化二砷诱导肺癌细胞凋亡及对细胞周期的影响

目的 :探讨三氧化二砷 (As2 O3 )对人肺癌细胞株 (Spc- A1)诱导凋亡的机制 ,为抗肿瘤药物的筛选和用药方式提供理论依据。方法 :体外培养 Spc- A1细胞株与不同浓度的 As2 O3 进行作用 ,应用 MTT比色法、流式细胞仪技术、电子显微镜技术观察细胞增殖率、细胞周期率、细胞凋亡率及亚细胞水平变化。结果 :As2 O3 能够抑制 Spc- A1细胞的增殖 ,且呈时间剂量依赖性 ,Spc- A1细胞凋亡率与药物浓度和时间呈依赖关系。电镜观察细胞线粒体肿胀、空泡 ,染色质浓缩、核碎裂。结论 :As2 O3 可诱导 Spc- A1细胞凋亡 ,细胞周期延长 ,线粒体变性。     

Study of therapeutic mechanism of acupuncture in treating bronchial asthma

Ｉｔｈａｓｂｅｅｎｃｏｎｓｉｄｅｒｅｄｂｙｍｏｄｅｒｎｍｅｄｉｃｉｎｅｔｈａｔｂｒｏｎｃｈｉａｌａｓｔｈｍａｉｓａｃｈｒｏｎｉｃａｉｒｗａｙａｌｌｅｒｇｉｃｉｎｆｌａｍｍａｔｉｏｎ（ＡＡＩ）ｗｈｉｃｈｉｓｔｈｅｍａｊｏｒｆａｃｔｏｒｔｈａｔｉｎｄｕｃｅｓｒｅｖｅｒｓｉｂｌｅａｉｒｗａｙｖｅｎｔｉｌａｔｉｎｇｄｉｓｔｕｒｂａｎｃｅａｎｄｂｒｏｎｃｈｉａｌｈｙｐｅｒ ｒｅ ｓｐｏｎｓｉｖｅｎｅｓｓ（ＢＨＲ）ｉｎａｓｔｈｍａｔｉｃｐａｔｉｅｎｔｓ,ａｓｗｅｌｌａｓａｃｏｒｒｅｌａｔｉｏｎｂｅｔｗｅｅｎｔ…     

Efficacy of non-ablative fractional 1440-nm laser therapy for treatment of facial acne scars in patients with rosacea: a prospective,interventional study

Lasers in Medical Science - Acne scarring is one of the most common facial skin disorders. The appropriate treatments for acne scars in patients with rosacea have not been studied. This study was...     

Partial nephrectomy should be classified as an inpatient procedure: Results from a statewide quality improvement collaborative

ObjectivesTo examine length of stay (LOS) and readmission rates for all minimally-invasive partial nephrectomy (MIPN) and MI radical nephrectomy (MIRN) performed for localized renal masses ≤7 cm in size (cT1RM) within 12 Michigan urology practices. Both RN and PN are commonly performed in treating cT1RM. Although technically more complex and associated with higher complication rates, Centers for Medicare & Medicaid Services considers MIPN an outpatient procedure and MIRN is inpatient.MethodsWe collected data for renal surgeries for cT1RM at MUSIC-KIDNEY practices between May 2017–February 2020. Data abstractors recorded clinical, radiographic, pathologic, surgical, and short-term follow-up data into the registry for cT1RM patients.ResultsWithin MUSIC-KIDNEY, 807 patients underwent MI renal surgery at 12 practices. Median LOS for cT1RM patients after MIPN (n = 531, 66%) was 2 days and after MIRN (n = 276, 34%) was also 2 days. Among patients undergoing laparoscopic or robotic PN, 171 (32%), 230 (43%), and 130 (24%) stayed ≤1, 2, ≥3 days. Among patients undergoing laparoscopic or robotic RN, 81 (29%), 112 (41%), and 83 (30%) stayed ≤1, 2, ≥3 days. No significant difference was observed between MIPN and MIRN on LOS commensurate with outpatient surgery (≤1-day, OR = 0.97, P = 0.87).ConclusionsLess than one-third of patients had a LOS ≤1-day and LOS was comparable for MIPN and MIRN. Centers for Medicare & Medicaid Services should be advised that MIPN is a more complex surgery than MIRN, most patients receiving a MIPN will require a ≥2-day hospital stay and it would be more appropriate to classify MIPN an inpatient procedure with MIRN.     

顽固性复发性气胸胸膜腔造影及硬化治疗后追踪

对32例顽固性复发性气胸患者用60%泛影葡胺进行胸膜腔造影,确定裂口后作硬化剂治疗,并作复张后胸部CT对照及手术追踪对照,取得满意效果。     

Partial Sequence Analysis of the Genome of Human Herpesvirus 7 YY5 Isolated from Saliva Samples

Ｈｕｍａｎｈｅｒｐｅｓｖｉｒｕｓ 7(ＨＨＶ 7)ｉｓｏｎｅｏｆｔｈｅｍｏｓｔｒｅｃｅｎｔｌｙｄｉｓｃｏｖｅｒｅｄｍｅｍｂｅｒｏｆｔｈｅｈｅｒ ｐｅｓｖｉｒｕｓｆａｍｉｌｙ .Ｉｔｗａｓｆｉｒｓｔｉｓｏｌａｔｅｄｆｒｏｍａｃｔｉｖａｔ ｅｄＣＤ4 Ｔｃｅｌｌｓｆｒｏｍｐｅｒｉｐｈｅｒａｌｂｌｏｏｄｍｏｎｏｎｕ ｃｌｅａｒｃｅｌｌｓ (ＰＢＭＣｓ)ｏｆａｈｅａｌｔｈｙｉｎｄｉｖｉｄｕａｌ[1] ,ａｐａｔｉｅｎｔｗｉｔｈｃｈｒｏｎｉｃｆａｔｉｇｕｅｓｙｎｄｒｏｍｅ(ＣＦＳ) [2 ] ,ａｎｄｆｒｏｍｓａｌｉｖａｏｆｈｅａｌ…