目的:评价电脑肝病治疗仪治疗病毒性肝炎的疗效及不良反应。方法:将116例病毒性肝炎患者随机分为治疗组及对照组,治疗组60例,对照组56例。两组均以抗炎、保肝、降酶、退黄、对症为治则。治疗组加用电脑肝病仪治疗，每日一次。结果:治疗组在消化道症状改善方面有效率950%,黄疸消退方面有效率902%。谷丙转氨酶恢复方面有效率85%。而对照组分别为8214%、6786%和7143%。结论:电脑肝病治疗仪治疗肝病能迅速改善消化道症状,有效降低黄疸、转氨酶,未见明显不良反应。
Objective To observe the eotaxin expression of rat airway smooth muscle cells ( ASMCs) induced by serum from asthmatic rats, and explore the possible mechanism. Methods ASMCs isolated fromrat tracheas were cultured in vivo. Then they were treated with serum from asthmatic rats, or treated with serum and dexamethasone simultaneously. The level of eotaxin protein in supernatant and eotaxin mRNA in ASMCs were measured by ELISA and reverse transcription-polymerase chain reaction. The expression of cAMP in ASMCs was examined by radioimmunoassay. Results After the treatment with sensitized serum, the eotaxin level in supernatant and mRNA expression in ASMCs were significantly higher [ ( 107. 09 ±7. 12) ng/L vs. ( 0. 63 ±0. 56) ng/L, P lt; 0. 05; 1. 39 ±0. 04 vs. 0. 05 ±0. 01, P lt;0. 05] , and the level of cAMP in ASMCs was significantly lower compared with the control group [ ( 17. 58 ±3. 62) ng/L vs. ( 32. 39 ±3. 36) ng/L, P lt; 0. 05] . After intervened by the sensitized serum and dexamethasone simultaneously, the protein and mRNA expressions of eotaxin were lower compared with those intervened by sensitized serumalone [ ( 64. 18 ±4. 04) ng/L and 0. 77 ±0. 19] . The level of eotaxin in supernatant was negatively correlated with cAMP level in ASMCs ( r = - 0. 788, P lt; 0. 01) . Conclusions There is anautocrine function in ASMCs as inflammatory cells after stimulation with sensitized serum. Eotaxin may play an important roll in the pathogenesis of asthma via a cAMP-dependent pathway.
目的 观察茵陈柴平汤治疗重度慢性乙型肝炎的疗效及不良反应。 方法 2009年3月－2010年3月，选择采用茵陈柴平汤联合常规保肝药物治疗50例重度慢性乙型肝炎患者（治疗组），并与50例仅用常规保肝药物治疗的重度慢性乙型肝炎患者（对照组）进行比较，观察治疗2、4周时的临床症状、肝功能及凝血酶原活动度等指标的变化。 结果 治疗2、4周时，治疗组在肝功能及凝血酶原活动度等指标均有显著改善，无严重不良反应；4周时，治疗组的症状缓解率（84%）明显高于对照组（66%）；其总有效率（96%）亦高于对照组（80%）。 结论 茵陈柴平汤治疗重度慢性乙型肝炎具有较好的临床疗效，且无严重不良反应。
Objective To observe the effects of cryopreservation and resuscitation on the biological characteristics of mesenchymal stem cells (MSCs) derived f rom human umbilical cord blood. Methods MSCs were isolated and cultured f rom human umbilical cord blood in vitro. The cells were passaged , and the third generation of MSCs were cryopreserved in－196 ℃ liquid nitrogen for 4 weeks with cryopreservation medium , which contained 10 % dimethyl sulfoxide (DMSO) and 90 % fetal calf serum ( FCS) . The morphology , proliferation and differentiation of MSCs were investigated and compared with those of MSCs before cryopreservation. Results There was no significant difference of morphology between pre-cryopreserved MSCs and the ones af ter resuscitation. It was observed that all MSCs were spindle-shaped and showed adherence growth characteristic before and af ter cryopreservation. The cell growth curves of MSCs were also similar before and af ter cryopreservation. Even though the curve of resuscitated MSCs descended a little as compared with that of pre-cryopreserved MSCs , there was no significant difference ( Pgt; 0. 05) . After 2-week adipocytic differentiation induction , fat drops could be found in the kytoplasm of MSCs and they were red when stained with oil-red O staining , which suggested that MSCs could be induced and differentiated into adipocytes. Af ter 4-week osteoblastic differentiation induction , MSCs could be induced and differentiated into osteoblasts , and calcium node showed black when stained with Von Kossa staining. There were no significant changes of the differentiating ability of MSCs into adipocyte and osteoblast before and after cryopreservation. Conclusion MSCs derived from human umbilical cord blood maintains their biological characteristics af ter cryopreservation and resuscitation.
目的 探讨后路手术中360°植骨融合术治疗腰椎滑脱症的近期疗效。 方法 2008年1月－2011年2月收治39例腰椎滑脱症患者，男21例，女18例；年龄35～75岁，平均51岁。病程12～50个月，平均31个月。滑脱部位：腰3 1例，腰4 11例，腰5 24例，腰4、5 3例。腰椎退变性滑脱27例，峡部裂性滑脱12例。按Meyerding分度：Ⅰ度21例，Ⅱ度13例，Ⅲ度5例。患者均有腰腿痛症状，保守治疗无效后行后路减压、复位及椎弓根钉棒系统内固定，术中以360°行椎间及后外侧三维立体植骨融合，在椎体前中柱采用植骨加椎间融合器的融合方式。术后定期随访，摄X线片检测融合情况，使用视觉模拟疼痛（VAS）评分评估症状缓解情况，Greenough-Fraser综合评分评价腰腿痛治疗结果。 结果 有36例患者获随访，随访时间12～36个月，平均24个月。植骨愈合率100%，愈合时间10～18个月，平均14个月。无内固定松动、断裂、外露及脱落等并发症发生。术前下肢神经根痛VAS评分为（7.52 ± 1.23）分，末次随访时为（1.67 ± 1.18）分；下腰痛术前（6.83 ± 1.51）分，末次随访时为（1.11 ±0.76）分；手术前后比较差异均有统计学意义（P＜0.05）。Greenough-Fraser综合评分术前为（24 ± 7）分，末次随访时为（55 ± 4）分，差异有统计学意义（P＜0.05）。 结论 360°植骨融合术治疗腰椎滑脱症是一种确实有效的融合方法，利于提高相应区域的植骨融合率及恢复椎间隙高度，使融合更稳定。
Objective To investigate the strategy of treatment and prevention of hemorrhage after radical resection of hilar cholangiocarcinoma. Method Reviewing the related literatures at home and abroad in recent years, to summarize the progress of treatment and prevention of hemorrhage after radical resection of hilar cholangiocarcinoma. Results We should clear the postoperative bleeding time, extent, cause, and location, to help the clinician to choose the appropriate timing of intervention and treatment. The patients with early hemorrhage and mild degree hemorrhage could be treated conservatively. If patients with severe hemorrhage and hemodynamic disorders, surgical intervention must be decisive. Patients with late hemorrhage would have serious consequences, and these patients should receive interventional or surgical treatment as early as possible. Conclusions For patients with hilar cholangiocarcinoma after radical resection, doctors need to do accurate preoperative evaluation, meticulous operation, and intensive management after operation, to reduce the incidence of hemorrhage after radical resection of hilar cholangiocarcinoma. If the postoperative hemorrhage occurs, the cause, location, time, and degree of hemorrhage should be clearly defined to facilitate clinicians to make rapid clinical decisions and to develop treatment programs.
Hip fracture in the elderly is a disease with a high mortality rate and a high complication rate. Its main treatment method is surgery. The concept of enhanced recovery after surgery runs through the perioperative period of elderly patients with hip fracture. Elderly patients with hip fracture should be scheduled for surgery as soon as possible after admission to enhance postoperative functional recovery. Preoperative ambulation and postoperative exercise can reduce postoperative complications and mortality, shorten the length of hospital stay, and promote functional recovery.
In the field of brain-computer interfaces (BCIs) based on functional near-infrared spectroscopy (fNIRS), traditional subject-specific decoding methods suffer from the limitations of long calibration time and low cross-subject generalizability, which restricts the promotion and application of BCI systems in daily life and clinic. To address the above dilemma, this study proposes a novel deep transfer learning approach that combines the revised inception-residual network (rIRN) model and the model-based transfer learning (TL) strategy, referred to as TL-rIRN. This study performed cross-subject recognition experiments on mental arithmetic (MA) and mental singing (MS) tasks to validate the effectiveness and superiority of the TL-rIRN approach. The results show that the TL-rIRN significantly shortens the calibration time, reduces the training time of the target model and the consumption of computational resources, and dramatically enhances the cross-subject decoding performance compared to subject-specific decoding methods and other deep transfer learning methods. To sum up, this study provides a basis for the selection of cross-subject, cross-task, and real-time decoding algorithms for fNIRS-BCI systems, which has potential applications in constructing a convenient and universal BCI system.
ObjectiveTo compare the effect of aspirin+ticagrelor and aspirin+clopidogrel on graft patency one year after coronary artery bypass grafting (CABG).MethodsA total of 67 patients who received CABG in our department from January 2014 to September 2017 were included in this study (52 males and 15 females). They were randomly divided into a group A (aspirin+clopidogrel) and a group B (aspirin+ticagrelor). There were 34 participants in the group A (28 males and 6 females) and 33 patients in the group B (24 males and 9 females). All patients were invited for clinical follow-up and 64-slice multislice computed tomography angiography (MSCTA) analysis in 1 year postoperatively. Cardiovascular events, bleeding events and other adverse events were followed up.ResultsFour patients were lost to follow-up. Two patients died. A total of 61 patients (48 males and 13 females) completed coronary CTA, and 31 in the group A (25 males and 6 females) and 30 in the group B (23 males and 7 females). The total number of bridged vessels was 156 (59 internal thoracic artery bridges and 97 great saphenous vein bridges), including 79 in the group A (31 internal thoracic artery bridges and 48 great saphenous vein bridges) and 77 in the group B (28 internal thoracic artery bridges and 49 great saphenous vein bridges). Graft patency rate 1 year post CABG was 82.3% (65/79) in the group A and 92.2% (71/77) in the group B (P>0.05). Artery graft patency rate 1 year post CABG was 96.8% (30/31) in the group A and 96.4% (27/28) in the group B (P>0.05). Saphenous vein graft patency rate 1 year post CABG was 72.9% (35/48) in the group A and 89.8% (44/49) in the group B (P<0.05). Multivariable analysis with binary logistic regression showed ticagrelor use reduced graft occlusion (OR=0.282, 95%CI 0.093 to 0.862, P<0.05). There was no significant difference in adverse events between the two groups.ConclusionCompared with clopidogrel plus aspirin, ticagrelor added to aspirin after CABG may enhance the saphenous graft patency without the excess risk of bleeding 1 year post CABG.
FLASH radiotherapy is a hotspot in the domain of tumor radiotherapy in recent years, which delivers at ultra-high dose rate (usually > 100 Gy/s) in an ultra-short time (1−50 ms) to the target volume. The FLASH effect will be generated after the organism is treated with FLASH radiotherapy, which makes the tumor more easy to be killed and the normal tissue is protected after radiotherapy. Because of the differences in sensitivity to FLASH radiotherapy between tumor tissues and normal tissues, FLASH radiotherapy has a subversive advantage in the treatment of tumors. In this paper, several studies since 1959 on the effects of ultra-high dose rate rays and FLASH radiation on cells and organisms are summarized. As the predecessor of FLASH radiotherapy, ultra-high dose rate radiotherapy has laid a very important foundation for the development of FLASH radiotherapy.