目的:評價電腦肝病治療儀治療病毒性肝炎的療效及不良反應。方法:將116例病毒性肝炎患者隨機分為治療組及對照組,治療組60例,對照組56例。兩組均以抗炎、保肝、降酶、退黃、對癥為治則。治療組加用電腦肝病儀治療，每日一次。結果:治療組在消化道癥狀改善方面有效率950%,黃疸消退方面有效率902%。谷丙轉氨酶恢復方面有效率85%。而對照組分別為8214%、6786%和7143%。結論:電腦肝病治療儀治療肝病能迅速改善消化道癥狀,有效降低黃疸、轉氨酶,未見明顯不良反應。
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 觀察茵陳柴平湯治療重度慢性乙型肝炎的療效及不良反應。 方法 2009年3月－2010年3月，選擇采用茵陳柴平湯聯合常規保肝藥物治療50例重度慢性乙型肝炎患者（治療組），并與50例僅用常規保肝藥物治療的重度慢性乙型肝炎患者（對照組）進行比較，觀察治療2、4周時的臨床癥狀、肝功能及凝血酶原活動度等指標的變化。 結果 治療2、4周時，治療組在肝功能及凝血酶原活動度等指標均有顯著改善，無嚴重不良反應；4周時，治療組的癥狀緩解率（84%）明顯高于對照組（66%）；其總有效率（96%）亦高于對照組（80%）。 結論 茵陳柴平湯治療重度慢性乙型肝炎具有較好的臨床療效，且無嚴重不良反應。
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.
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.
目的 探討后路手術中360°植骨融合術治療腰椎滑脫癥的近期療效。 方法 2008年1月－2011年2月收治39例腰椎滑脫癥患者，男21例，女18例；年齡35～75歲，平均51歲。病程12～50個月，平均31個月。滑脫部位：腰3 1例，腰4 11例，腰5 24例，腰4、5 3例。腰椎退變性滑脫27例，峽部裂性滑脫12例。按Meyerding分度：Ⅰ度21例，Ⅱ度13例，Ⅲ度5例。患者均有腰腿痛癥狀，保守治療無效后行后路減壓、復位及椎弓根釘棒系統內固定，術中以360°行椎間及后外側三維立體植骨融合，在椎體前中柱采用植骨加椎間融合器的融合方式。術后定期隨訪，攝X線片檢測融合情況，使用視覺模擬疼痛（VAS）評分評估癥狀緩解情況，Greenough-Fraser綜合評分評價腰腿痛治療結果。 結果 有36例患者獲隨訪，隨訪時間12～36個月，平均24個月。植骨愈合率100%，愈合時間10～18個月，平均14個月。無內固定松動、斷裂、外露及脫落等并發癥發生。術前下肢神經根痛VAS評分為（7.52 ± 1.23）分，末次隨訪時為（1.67 ± 1.18）分；下腰痛術前（6.83 ± 1.51）分，末次隨訪時為（1.11 ±0.76）分；手術前后比較差異均有統計學意義（P＜0.05）。Greenough-Fraser綜合評分術前為（24 ± 7）分，末次隨訪時為（55 ± 4）分，差異有統計學意義（P＜0.05）。 結論 360°植骨融合術治療腰椎滑脫癥是一種確實有效的融合方法，利于提高相應區域的植骨融合率及恢復椎間隙高度，使融合更穩定。
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.
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.
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.