Network pharmacology is a powerful tool to reflect the pharmacologically active effects,mechanism of action and toxic activity of traditional Chinese medicines(TCMs).The ingredients of TCMs,associated with quality con...Network pharmacology is a powerful tool to reflect the pharmacologically active effects,mechanism of action and toxic activity of traditional Chinese medicines(TCMs).The ingredients of TCMs,associated with quality control of TCM products,are those fundamental chemicals that exhibit biological activities.A great amount of effort has been made by scientists in that field in order to improve the quality of TCMs,though the approaches to determine their quality and the TCM theory and compatibility rules remain ambiguous.Now some methods and technologies must be applied to predict and explore the quality marker(Q-marker)for quality control,as well as to clarify the factors affecting the quality of TCM,which may give new insight into rational ground of establishment of appropriate quality control and assessment system.In this review paper,authors focus on the prediction of quality markers of TCMs by network pharmacology based on three aspects:(1)from network medicine to network pharmacology,(2)complex network system of traditional Chinese medicine,and(3)predicting TCM quality markers based on network pharmacology.Authors proposed the research pattern on network pharmacology based on biological and medical networks,and further TCM network pharmacology based on substantial basis of TCM formulae,and the idea of"effect-ingredient-target-fingerprint"to predict and recognize the TCM Qmarker was the ultimate goal.In addition,authors yet noted how to make full use of the advantages of network toxicology to provide new ideas for the toxicity study of complex TCM systems and the prediction of TCM toxicity markers.展开更多
Background Gastric varices （GV） are life-threatening for patients with portal hypertension. Endoscopic injection with butyl cyanoacrylate （BC）, the mainstay of the therapy for GV, has been reported to be effective...Background Gastric varices （GV） are life-threatening for patients with portal hypertension. Endoscopic injection with butyl cyanoacrylate （BC）, the mainstay of the therapy for GV, has been reported to be effective for hemostasis of bleeding varices, but its efficacy in the obliteration of GV and impact on the survival of patients still needs clarification. Here we summarized our experience of 10 years＇ practice to evaluate the efficacy and safety of endoscopic therapy using BC for GV patients. Methods From January 1997 to April 2006, GV cases treated with endoscopic injection using BC were collected. The ＂sandwich method＂ and the ＂modified sandwich method＂ were used to inject BC intravascularly. Retrograde analysis was made on the data of treatment and follow-up. Results A total of 635 GV cases treated with endoscopic injection using BC were collected, most of them （90.2%） suffered from post-hepatitis cirrhosis. Emergency hemostasis was achieved in 139 out of 146 sessions （95.2%）. Complications occurred in 32 cases （5.2%）, including hemorrhage due to early expulsion of tissue glue （3.1%）, septicemia （1%） and ectopic thrombosis （0.5%）, such as spleen infarction. Endoscopic follow-up in 503 patients showed complete disappearance （76.9%）, collapse （17.3%） or remnants （5.8%） of gastric varices. A total of 550 patients were followed up clinically for 3 to 115 months. Of these patients, 44 had recurrent bleeding （8.0%） and 44 died from hepatic failure, recurrent bleeding, hepatic carcinoma or other causes. The longest survival was 115 months, with a median survival of 25 months. Survival rates at 1,2, 3, 4 and 5 year were 95%, 92%, 90%, 83% and 81%, respectively. Conclusions Endoscopic sclerotherapy with BC is effective for the hemostasis of bleeding GV, as well as obliteration of GV which contributes to less rebleeding and better survival. The modified sandwich method may be useful to minimize ectopic embolism, which we speculated to result from excess iodized 展开更多
Understanding the process of the changing phytoplankton patterns can be particularly useful in water quality improvement and management decisions. However, it is generally not easy to illustrate the interactions betwe...Understanding the process of the changing phytoplankton patterns can be particularly useful in water quality improvement and management decisions. However, it is generally not easy to illustrate the interactions between phytoplankton biomass and related environmental variables given their high spatial and temporal heterogeneity. To elucidate relationships between them, in a eutrophic shallow lake, Taihu Lake, relative long-term data set of biotic and abiotic parameters of water quality in the lake were conducted using multivariate statistical analysis within seasonal periodicity. The results indicate that water temperature and total phosphorus （TP） played governing roles in phytoplankton dynamics in most seasons （i.e. temperature in winter, spring and summer; TP in spring, summer and autumn）; COD （chemical oxygen demand） and BOD （biological oxygen demand） presented significant positive relationships with phytoplankton biomass in spring, summer and autumn. However, a complex interplay was found between phytoplankton biomass and nitrogen considering significant positive relationships occurring between them in spring and autumn, and conversely negative ones in summer. As the predatory factor, zooplankton presented significant grazing-pressure on phytoplankton biomass during summer in view of negative relationship between them in the season. Significant feedback effects of phytoplankton development were identified in summer and autumn in view that significant relationships were obser,qed between phytoplankton biomass and pH, Trans （transparency of water） and DO. The results indicate that interactions between phyto：plankton biomass and related environmental variables are highly sensitive to seasonal periodicity, which improves understanding of different roles of biotic and abiotic variables upon phytoplankton variability, and hence, advances management methods for eutrophic lakes.展开更多
AIM:To compare the effects and postoperative complications between tissue selecting therapy stapler(TST)and Milligan-Morgan hemorrhoidectomy(M-M).METHODS:Four hundred and eighty patients with severe prolapsing hemorrh...AIM:To compare the effects and postoperative complications between tissue selecting therapy stapler(TST)and Milligan-Morgan hemorrhoidectomy(M-M).METHODS:Four hundred and eighty patients with severe prolapsing hemorrhoids,who were admitted to the Shenyang Coloproctology Hospital between 2009and 2012,were randomly divided into observation(n=240)and control(n=240)groups.Hemorrhoidectomies were performed with TST in the observation group and with the M-M technique in the control group.The therapeutic effects,operation security,and postoperative complications in the two groups were compared.The immediate and long-term complications were assessed according to corresponding criteria.Pain was assessed on a visual analogue scale.The efficacy was assessed by specialized criteria.The follow-up was conducted one year after the operation.RESULTS:The total effective rates of the observation and control groups were 99.5%(217/218)and 98.6%(218/221)respectively;the difference was not statistically significant(P=0.322).Their were significant differences between observation and control groups in intraoperative blood loss(5.07±1.14 vs 2.45±0.57,P=0.000),pain(12 h after the surgery:5.08±1.62 vs 7.19±2.01,P=0.000;at first dressing change:2.64±0.87 vs 4.34±1.15,P=0.000;first defecation:3.91±1.47 vs 5.63±1.98,P=0.001),urine retention(n=22 vs n=47,P=0.001),anal pendant expansion after the surgery(2.35±0.56 vs 5.16±1.42,P=0.000),operation time(18.3±5.6 min vs 29.5±8.2 min,P=0.000),and the length of hospital stay(5.3±0.6 d vs 11.4±1.8 d,P=0.000).Moreover TST showed significant reductions compared to M-M in the rates of long-term complications such as fecal incontinence(n=3 vs n=16,P=0.003),difficult bowel movement(n=1 vs n=9,P=0.011),intractable pain(n=2 vs n=12,P=0.007),and anal discharge(n=3 vs n=23,P=0.000).CONCLUSION:TST for severe prolapsing hemorrhoids is a satisfactory technique for more rapid recovery,lower complication rates,and higher operation security.展开更多
Major ozonated autohemotherapy has been shown to promote recovery of upper limb motor function in patients with acute cerebral infarction, but whether naajor ozonated autohelnotherapy affects remote in）ury remains po...Major ozonated autohemotherapy has been shown to promote recovery of upper limb motor function in patients with acute cerebral infarction, but whether naajor ozonated autohelnotherapy affects remote in）ury remains poorly understood. Here, we assumed that major ozonated autohemotherapy contributes to recovery of clinical function, possibly by reducing remote injury after acute cerebral infarction. Sixty acute cerebral infarction patients aged 30-80 years were equally and randomly allocated to ozone treatment and control groups. Patients in the ozone treatment group received medical treatment and major ozonated autohemotherapy （47 mg/L, 100 mL ozone） for 10 ± 2 days. Patients in the control group received medical treatment only. National Institutes of Health Stroke Scale score, modified Rankin scale score, and reduced degree of fractional anisotropy values of brain magnetic resonance diffusion tensor imaging were remarkably decreased, brain function improved, clinical efficiency significantly increased, and no obvious adverse reactions detected in the ozone treatment group compared with the control group. These findings suggest that major ozonated autohemotherapy promotes recovery of neurological function in acute cerebral infarction patients by reducing re,note injury, and additionally, exhibits high safety.展开更多
Objective： To observe the clinical efficacy of warm needling moxibustion plus flash cupping for remission-stage peripheral facial paralysis （FP） due to wind-cold. Methods： Fifty eligible patients were randomized i...Objective： To observe the clinical efficacy of warm needling moxibustion plus flash cupping for remission-stage peripheral facial paralysis （FP） due to wind-cold. Methods： Fifty eligible patients were randomized into a warm needling moxibustion group and an acupuncture-cupping group, 25 cases in each group. The warm needling moxibustion group was intervened by acupuncture at Fengchi （GB 20）, Yangbai （GB 14） towards Yuyao （EX-HN 4）, Xiaguan （ST 7）, Dicang （ST 4） towards Jiache （ST 6）, Quanliao （SI 18）, and Hegu （LI 4）, plus warm needling moxibustion at Quanliao （SI 18）; the acupuncture-cupping group received flash cupping on the affected side in addition to the intervention given to the warm needling moxibustion group. The two groups were both treated once a day, 10 times as a treatment course, for 3 courses in total. The House-Brackmann （H-B） facial nerve grading system was observed before and after the intervention to evaluate the facial nerve function in the two groups, and the therapeutic efficacies were also compared between the two groups. Results： The two treatment protocols both can promote the recovery of facial nerve function. The total effective rate was 92.0% in the acupuncture-cupping group versus 72.0% in the warm needling moxibustion group, and the between-group difference was statistically significant （P〈O.05）. Conclusion： Warm needling moxibustion plus flash cupping can produce a more significant efficacy than dry warm needling moxibustion in treating remission-stage peripheral FP due to wind-cold.展开更多
川藏铁路是我国正在规划建设的重点工程,由于其位于地形地貌和地质构造都极为复杂的青藏高原东部,在铁路规划建设中面临一系列迫切需要解决的关键地质问题:区域性活动断裂与断错影响、地质灾害、高地应力及其引起的岩爆和大变形、高温...川藏铁路是我国正在规划建设的重点工程,由于其位于地形地貌和地质构造都极为复杂的青藏高原东部,在铁路规划建设中面临一系列迫切需要解决的关键地质问题:区域性活动断裂与断错影响、地质灾害、高地应力及其引起的岩爆和大变形、高温热害、断裂带高压水与涌水突泥、高陡边坡稳定性等。为满足技术支撑川藏铁路规划建设、精准服务国家重大战略实施的需要,中国地质调查局部署了“川藏铁路交通廊道地质调查工程”,聚焦制约川藏铁路规划建设的关键问题,充分发挥地质调查工作对国家重大工程规划建设的支撑作用。2019年主要完成铁路沿线1∶5万区域地质调查1350 km 2、1∶5万地质灾害调查5000 km 2,建设6口大地热流地质参数井、8个地温监测站,完成地应力测量20孔,编制完成11份地质调查专报,提出的大渡河大桥段、理塘车站段、毛垭坝盆地段等线路优化建议/防灾建议被采纳;首次将1∶5000大比例尺航空物探技术引入复杂山地铁路工程勘察,创新形成千米级超长水平钻孔定向取心钻进技术,实现500 m深的水平孔地应力测量突破等。该工程通过2019年调查研究,全力提升了铁路沿线地质调查程度与精度,并创新了复杂艰险山区重大工程地质问题与探测技术、地质灾害风险防控理论与减灾关键技术,有效支撑服务了川藏铁路规划建设。展开更多
目的观察胰岛素泵强化治疗后阿格列汀对初诊2型糖尿病(T2DM)患者的效果及对白细胞介素-6(IL-6)的影响。方法T2DM患者80例,随机分为试验组、对照组,每组40例。对照组患者应用二甲双胍联合阿卡波糖降糖治疗,试验组患者应用阿格列汀联合阿...目的观察胰岛素泵强化治疗后阿格列汀对初诊2型糖尿病(T2DM)患者的效果及对白细胞介素-6(IL-6)的影响。方法T2DM患者80例,随机分为试验组、对照组,每组40例。对照组患者应用二甲双胍联合阿卡波糖降糖治疗,试验组患者应用阿格列汀联合阿卡波糖降糖治疗,观察12周。结果(1)治疗后,两组患者空腹血糖(FBG)、餐后2 h血糖(2 h PG)、糖化血红蛋白(HbA1c)水平均较治疗前明显下降(P<0.05),且试验组较对照组下降更明显(P<0.05);两组空腹及餐后2 h C肽水平较治疗前升高(P<0.05),但两组之间差异无统计学意义(P>0.05)。(2)治疗后试验组不良反应明显少于对照组,治疗依从性明显优于对照组,差异均有统计学意义(P<0.05)。(3)治疗后两组IL-6水平均下降,试验组下降更明显(P<0.05)。结论对于初诊的T2DM患者,短期胰岛素泵强化治疗后应用阿格列汀能够较好控制血糖,不良反应少,患者依从性好,同时阿格列汀可以降低炎症介质IL-6水平。展开更多
Complicated changes are happening during the aging process of flue-cured tobacco （FCT） and understanding of the changing components is of great significance in improving the quality,shortening aging time,and enhanci...Complicated changes are happening during the aging process of flue-cured tobacco （FCT） and understanding of the changing components is of great significance in improving the quality,shortening aging time,and enhancing production and economic efficiency in tobacco industry.The aging samples of FCT from four main producing areas of China,i.e.,Yunnan,Sichuan,Hubei,and Dongbei,were used to study the changing rule of the components such as alkali,acid,and carbohydrate as well as the aroma and their relationship with sensory quality;and based on the correlation among the components and the sensory quality index,multivariable models were established to predict the aging quality.The results showed that the sensory quality of FCT increased steadily during the aging time,and at the same time,the acidic components （total organic acids,volatile acids） increased gradually,while the alkaline substances （nicotine,volatile alkali）,carbohydrate （total sugars,reducing sugar） and pH values showed a downward trend.Correlation analysis found that the sensory quality and pH values were negatively correlated （P0.05）,while the sensory quality with total organic acids and aroma were positively correlated.The optimal model for predicting the quality of FCT was y=56.75-0.63x12＋50.09x2-13.27x22,（y：sensory quality;x1：pH;x2：total organic acids）.The average predicating error was 1.04% with maximum predicating error of 2.89% and the accuracy rate of above 97%.展开更多
基金supported by National Nature Science Foundation for Key Projects(No.81430096)National New Drug Innovation(No.2017ZX09301062.)Tianjin Science and Technology Plan Project(No.19YFSLQY00110).
文摘Network pharmacology is a powerful tool to reflect the pharmacologically active effects,mechanism of action and toxic activity of traditional Chinese medicines(TCMs).The ingredients of TCMs,associated with quality control of TCM products,are those fundamental chemicals that exhibit biological activities.A great amount of effort has been made by scientists in that field in order to improve the quality of TCMs,though the approaches to determine their quality and the TCM theory and compatibility rules remain ambiguous.Now some methods and technologies must be applied to predict and explore the quality marker(Q-marker)for quality control,as well as to clarify the factors affecting the quality of TCM,which may give new insight into rational ground of establishment of appropriate quality control and assessment system.In this review paper,authors focus on the prediction of quality markers of TCMs by network pharmacology based on three aspects:(1)from network medicine to network pharmacology,(2)complex network system of traditional Chinese medicine,and(3)predicting TCM quality markers based on network pharmacology.Authors proposed the research pattern on network pharmacology based on biological and medical networks,and further TCM network pharmacology based on substantial basis of TCM formulae,and the idea of"effect-ingredient-target-fingerprint"to predict and recognize the TCM Qmarker was the ultimate goal.In addition,authors yet noted how to make full use of the advantages of network toxicology to provide new ideas for the toxicity study of complex TCM systems and the prediction of TCM toxicity markers.
文摘Background Gastric varices （GV） are life-threatening for patients with portal hypertension. Endoscopic injection with butyl cyanoacrylate （BC）, the mainstay of the therapy for GV, has been reported to be effective for hemostasis of bleeding varices, but its efficacy in the obliteration of GV and impact on the survival of patients still needs clarification. Here we summarized our experience of 10 years＇ practice to evaluate the efficacy and safety of endoscopic therapy using BC for GV patients. Methods From January 1997 to April 2006, GV cases treated with endoscopic injection using BC were collected. The ＂sandwich method＂ and the ＂modified sandwich method＂ were used to inject BC intravascularly. Retrograde analysis was made on the data of treatment and follow-up. Results A total of 635 GV cases treated with endoscopic injection using BC were collected, most of them （90.2%） suffered from post-hepatitis cirrhosis. Emergency hemostasis was achieved in 139 out of 146 sessions （95.2%）. Complications occurred in 32 cases （5.2%）, including hemorrhage due to early expulsion of tissue glue （3.1%）, septicemia （1%） and ectopic thrombosis （0.5%）, such as spleen infarction. Endoscopic follow-up in 503 patients showed complete disappearance （76.9%）, collapse （17.3%） or remnants （5.8%） of gastric varices. A total of 550 patients were followed up clinically for 3 to 115 months. Of these patients, 44 had recurrent bleeding （8.0%） and 44 died from hepatic failure, recurrent bleeding, hepatic carcinoma or other causes. The longest survival was 115 months, with a median survival of 25 months. Survival rates at 1,2, 3, 4 and 5 year were 95%, 92%, 90%, 83% and 81%, respectively. Conclusions Endoscopic sclerotherapy with BC is effective for the hemostasis of bleeding GV, as well as obliteration of GV which contributes to less rebleeding and better survival. The modified sandwich method may be useful to minimize ectopic embolism, which we speculated to result from excess iodized
基金Project supported by the Chinese Academy of Sciences and the Chinese National Audit Office(No.KSH1-01)the Dutch Royal Academy of Arts and Sciences and Chinese Academy of Sciences(No.04CDP014).
文摘Understanding the process of the changing phytoplankton patterns can be particularly useful in water quality improvement and management decisions. However, it is generally not easy to illustrate the interactions between phytoplankton biomass and related environmental variables given their high spatial and temporal heterogeneity. To elucidate relationships between them, in a eutrophic shallow lake, Taihu Lake, relative long-term data set of biotic and abiotic parameters of water quality in the lake were conducted using multivariate statistical analysis within seasonal periodicity. The results indicate that water temperature and total phosphorus （TP） played governing roles in phytoplankton dynamics in most seasons （i.e. temperature in winter, spring and summer; TP in spring, summer and autumn）; COD （chemical oxygen demand） and BOD （biological oxygen demand） presented significant positive relationships with phytoplankton biomass in spring, summer and autumn. However, a complex interplay was found between phytoplankton biomass and nitrogen considering significant positive relationships occurring between them in spring and autumn, and conversely negative ones in summer. As the predatory factor, zooplankton presented significant grazing-pressure on phytoplankton biomass during summer in view of negative relationship between them in the season. Significant feedback effects of phytoplankton development were identified in summer and autumn in view that significant relationships were obser,qed between phytoplankton biomass and pH, Trans （transparency of water） and DO. The results indicate that interactions between phyto：plankton biomass and related environmental variables are highly sensitive to seasonal periodicity, which improves understanding of different roles of biotic and abiotic variables upon phytoplankton variability, and hence, advances management methods for eutrophic lakes.
文摘AIM:To compare the effects and postoperative complications between tissue selecting therapy stapler(TST)and Milligan-Morgan hemorrhoidectomy(M-M).METHODS:Four hundred and eighty patients with severe prolapsing hemorrhoids,who were admitted to the Shenyang Coloproctology Hospital between 2009and 2012,were randomly divided into observation(n=240)and control(n=240)groups.Hemorrhoidectomies were performed with TST in the observation group and with the M-M technique in the control group.The therapeutic effects,operation security,and postoperative complications in the two groups were compared.The immediate and long-term complications were assessed according to corresponding criteria.Pain was assessed on a visual analogue scale.The efficacy was assessed by specialized criteria.The follow-up was conducted one year after the operation.RESULTS:The total effective rates of the observation and control groups were 99.5%(217/218)and 98.6%(218/221)respectively;the difference was not statistically significant(P=0.322).Their were significant differences between observation and control groups in intraoperative blood loss(5.07±1.14 vs 2.45±0.57,P=0.000),pain(12 h after the surgery:5.08±1.62 vs 7.19±2.01,P=0.000;at first dressing change:2.64±0.87 vs 4.34±1.15,P=0.000;first defecation:3.91±1.47 vs 5.63±1.98,P=0.001),urine retention(n=22 vs n=47,P=0.001),anal pendant expansion after the surgery(2.35±0.56 vs 5.16±1.42,P=0.000),operation time(18.3±5.6 min vs 29.5±8.2 min,P=0.000),and the length of hospital stay(5.3±0.6 d vs 11.4±1.8 d,P=0.000).Moreover TST showed significant reductions compared to M-M in the rates of long-term complications such as fecal incontinence(n=3 vs n=16,P=0.003),difficult bowel movement(n=1 vs n=9,P=0.011),intractable pain(n=2 vs n=12,P=0.007),and anal discharge(n=3 vs n=23,P=0.000).CONCLUSION:TST for severe prolapsing hemorrhoids is a satisfactory technique for more rapid recovery,lower complication rates,and higher operation security.
基金supported by the Science and Technology Project of Guangdong Province of China,No.2013B021800164the Scientific Research Project in Medicine of Guangdong Province of China,No.B200258
文摘Major ozonated autohemotherapy has been shown to promote recovery of upper limb motor function in patients with acute cerebral infarction, but whether naajor ozonated autohelnotherapy affects remote in）ury remains poorly understood. Here, we assumed that major ozonated autohemotherapy contributes to recovery of clinical function, possibly by reducing remote injury after acute cerebral infarction. Sixty acute cerebral infarction patients aged 30-80 years were equally and randomly allocated to ozone treatment and control groups. Patients in the ozone treatment group received medical treatment and major ozonated autohemotherapy （47 mg/L, 100 mL ozone） for 10 ± 2 days. Patients in the control group received medical treatment only. National Institutes of Health Stroke Scale score, modified Rankin scale score, and reduced degree of fractional anisotropy values of brain magnetic resonance diffusion tensor imaging were remarkably decreased, brain function improved, clinical efficiency significantly increased, and no obvious adverse reactions detected in the ozone treatment group compared with the control group. These findings suggest that major ozonated autohemotherapy promotes recovery of neurological function in acute cerebral infarction patients by reducing re,note injury, and additionally, exhibits high safety.
基金supported by Project of State Administration of Traditional Chinese Medicine,No.LP0118041~~
文摘Objective： To observe the clinical efficacy of warm needling moxibustion plus flash cupping for remission-stage peripheral facial paralysis （FP） due to wind-cold. Methods： Fifty eligible patients were randomized into a warm needling moxibustion group and an acupuncture-cupping group, 25 cases in each group. The warm needling moxibustion group was intervened by acupuncture at Fengchi （GB 20）, Yangbai （GB 14） towards Yuyao （EX-HN 4）, Xiaguan （ST 7）, Dicang （ST 4） towards Jiache （ST 6）, Quanliao （SI 18）, and Hegu （LI 4）, plus warm needling moxibustion at Quanliao （SI 18）; the acupuncture-cupping group received flash cupping on the affected side in addition to the intervention given to the warm needling moxibustion group. The two groups were both treated once a day, 10 times as a treatment course, for 3 courses in total. The House-Brackmann （H-B） facial nerve grading system was observed before and after the intervention to evaluate the facial nerve function in the two groups, and the therapeutic efficacies were also compared between the two groups. Results： The two treatment protocols both can promote the recovery of facial nerve function. The total effective rate was 92.0% in the acupuncture-cupping group versus 72.0% in the warm needling moxibustion group, and the between-group difference was statistically significant （P〈O.05）. Conclusion： Warm needling moxibustion plus flash cupping can produce a more significant efficacy than dry warm needling moxibustion in treating remission-stage peripheral FP due to wind-cold.
文摘川藏铁路是我国正在规划建设的重点工程,由于其位于地形地貌和地质构造都极为复杂的青藏高原东部,在铁路规划建设中面临一系列迫切需要解决的关键地质问题:区域性活动断裂与断错影响、地质灾害、高地应力及其引起的岩爆和大变形、高温热害、断裂带高压水与涌水突泥、高陡边坡稳定性等。为满足技术支撑川藏铁路规划建设、精准服务国家重大战略实施的需要,中国地质调查局部署了“川藏铁路交通廊道地质调查工程”,聚焦制约川藏铁路规划建设的关键问题,充分发挥地质调查工作对国家重大工程规划建设的支撑作用。2019年主要完成铁路沿线1∶5万区域地质调查1350 km 2、1∶5万地质灾害调查5000 km 2,建设6口大地热流地质参数井、8个地温监测站,完成地应力测量20孔,编制完成11份地质调查专报,提出的大渡河大桥段、理塘车站段、毛垭坝盆地段等线路优化建议/防灾建议被采纳;首次将1∶5000大比例尺航空物探技术引入复杂山地铁路工程勘察,创新形成千米级超长水平钻孔定向取心钻进技术,实现500 m深的水平孔地应力测量突破等。该工程通过2019年调查研究,全力提升了铁路沿线地质调查程度与精度,并创新了复杂艰险山区重大工程地质问题与探测技术、地质灾害风险防控理论与减灾关键技术,有效支撑服务了川藏铁路规划建设。
文摘目的观察胰岛素泵强化治疗后阿格列汀对初诊2型糖尿病(T2DM)患者的效果及对白细胞介素-6(IL-6)的影响。方法T2DM患者80例,随机分为试验组、对照组,每组40例。对照组患者应用二甲双胍联合阿卡波糖降糖治疗,试验组患者应用阿格列汀联合阿卡波糖降糖治疗,观察12周。结果(1)治疗后,两组患者空腹血糖(FBG)、餐后2 h血糖(2 h PG)、糖化血红蛋白(HbA1c)水平均较治疗前明显下降(P<0.05),且试验组较对照组下降更明显(P<0.05);两组空腹及餐后2 h C肽水平较治疗前升高(P<0.05),但两组之间差异无统计学意义(P>0.05)。(2)治疗后试验组不良反应明显少于对照组,治疗依从性明显优于对照组,差异均有统计学意义(P<0.05)。(3)治疗后两组IL-6水平均下降,试验组下降更明显(P<0.05)。结论对于初诊的T2DM患者,短期胰岛素泵强化治疗后应用阿格列汀能够较好控制血糖,不良反应少,患者依从性好,同时阿格列汀可以降低炎症介质IL-6水平。
基金supported by the grants of the Application of Nuclear Techniques in Agriculture from Ministry of Agriculture of China (200803034)China Tobacco Company in Hubei (2006YL0229)China Tobacco Company in Yunnan (2009YN010)
文摘Complicated changes are happening during the aging process of flue-cured tobacco （FCT） and understanding of the changing components is of great significance in improving the quality,shortening aging time,and enhancing production and economic efficiency in tobacco industry.The aging samples of FCT from four main producing areas of China,i.e.,Yunnan,Sichuan,Hubei,and Dongbei,were used to study the changing rule of the components such as alkali,acid,and carbohydrate as well as the aroma and their relationship with sensory quality;and based on the correlation among the components and the sensory quality index,multivariable models were established to predict the aging quality.The results showed that the sensory quality of FCT increased steadily during the aging time,and at the same time,the acidic components （total organic acids,volatile acids） increased gradually,while the alkaline substances （nicotine,volatile alkali）,carbohydrate （total sugars,reducing sugar） and pH values showed a downward trend.Correlation analysis found that the sensory quality and pH values were negatively correlated （P0.05）,while the sensory quality with total organic acids and aroma were positively correlated.The optimal model for predicting the quality of FCT was y=56.75-0.63x12＋50.09x2-13.27x22,（y：sensory quality;x1：pH;x2：total organic acids）.The average predicating error was 1.04% with maximum predicating error of 2.89% and the accuracy rate of above 97%.
