Objective To analyze the effect of the changes of hospital diagnosis and treatment mode on the treatment time in patients with acute ischemic stroke before and after the establishment of Cerebrovascular Disease Center. Methods A total of 103 consecutive patients with acute ischemic stroke admitted to the Department of Neurology,Changhai Hospital,the Second Military Medical University between June 2008 and December 2012 were enrolled retrospectively. Thirty-one of them were excluded because of incomplete medical records. Finally,72 patients were enrolled as a control group and received series diagnosis and treatment mode. A total of 210 consecutive patients with acute ischemic stroke admitted to the Cerebrovascular Disease Center,Changhai Hospital,the Second Military Medical University from September 2013 to February 2015 were enrolled retrospectively. Thirteen patients were excluded (4 patients with recurrent transient ischemic attack were treated with recombinant tissue-type plasminogen activator,9 without complete data were treated with intravenous thrombolysis),197 were enrolled as an observation group finally,and they were received series diagnosis and treatment mode. The patients of both groups were visited within 4. 5 h after onset and received rt-PA treatment. The time-consuming changes of each time period from onset-to-door,door-to-imaging,imaging-to-needle,door-to-needle,and onset-to-needle time between the control group and the observation group were compared and analyzed. Results Compared with the control group,the door-to-imaging,imaging-to-needle,door-to-needle and onset-to-needle time were significantly shorter in the observation group. There were significant difference between the 2 groups (24 ± 12 min vs. 60 ± 20 min,27 ± 12 min vs. 62 ± 31 min,51 ± 17 min vs. 122 ± 52 min,and 153 ± 69 min vs. 230 ± 81 min,all P < 0. 01). There was no significant difference for onset-to-door time between the observation group and the control group (P > 0. 05). Conclusion The establishment of cerebral vascular disease center and the improvement of the processes have shortened the treatment time in patients with acute ischemic stroke within time window. The time from onset-to-door is still longer,and the propaganda and education of stroke should be strengthened.

OBJECTIVETo compare the chemical differences in 4 commercial specifications of Scutellaria Radix, research the affection of decayed central xylem part on the crude drug's chemical composition and provide scientific data for production, processing, sale and clinical applications of Scutellariae Radix.

METHODMacroscopical identification method was used for observation of different specifications of Scutellariae Radix, including Qinwang, Tiaoqin both in 1st class and 2nd class and inferior samples. HPLC fingerprint method was used to analyze chemically the decayed central xylem part and non-decayed part as well as complete sample, and the results were described by the relative peak area.

RESULTThe morphological characteristics of 4 specifications are greatly different from one another mainly in root diameters, root lengths and the proportions of decayed central xylem part in the root, and so the authors classified Qinwang and Tiaoqin in 1st class as Kuqin for all samples of them which have decayed central xylem; and classified Tiaoqin in 2nd class and the inferior samples as Ziqin, for having little decayed central xylem. The 4 specifications collected from the same producing area have similar HPLC fingerprint profile to one another, while they are different in relative peak area. The peak area ratios of aglycone to their glucuronide (baicalein/baicalin, wogonin/wogonoside, oroxylin A/oroxylin A-7-O-glucuronide) from Kuqin were significantly higher than those of Ziqin. The total area of the peaks in HPLC fingerprint chromatographs of decayed central xylem part were quite lower than that of non-decayed part, whereas peak areas of the characteristic peaks and the 3 peak area ratios of decayed central xylem were significantly higher than those of non-decayed part which could be used as characteristic parameters to distinguish Kuqin and Ziqin.

CONCLUSIONFour commercial specifications of Scutellariae Radix can be classified as Kuqin and Ziqin respectively according to morphological characteristics and the proportions of decayed central xylem part in the root. The chemical characteristics of Kuqin and Ziqin are different from each other, so it's worth clarifying the similarities and differences of Kuqin and Ziqin in future. The result in this research can be used as references for identification and quality control of Scutellariae Radix specifications, and investigation on effective components of Kuqin and Ziqin.

Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; standards ; Quality Control ; Scutellaria baicalensis ; chemistry

Objective:To explore the treatment of levator complex in conjoint fascial sheath suspension correction on severe ptosis, and to seek a reliable and less complications operation.Methods:From October 2016 to February 2020, 40 eyes of 24 patients with severe ptosis (6 males and 18 females, aged from 10 to 73 years, with an average of 34.4 years) were divided into study group and control group. 20 eyes in study group were treated with combined fascia sheath suspension and levator palpebrae muscle complex tension-free shortening correction, while 20 eyes in control group were treated with combined fascia sheath suspension and levator palpebrae muscle complex tension-free shortening correction The effects and complications of the two groups were compared.Results:Follow-up studies were conducted at 1 week, 3 month and 6 months after operation. There was no significant difference between the two methods at different time points after operation, and the incidence of complications in the study group was less than that in the control group at 1 week after operation.Conclusions:Combined with fascial sheath suspension and levator palpebrae muscle complex tension-free shortening in the treatment of severe blepharoptosis has less complications and reliable curative effect in the early postoperative period, but it still needs to be improved to obtain more lasting curative effect.

Objective To investigate the relationship between the mean CT value and bone density value and explore a rapid and accurate image segmentation method for lumbar CT values in different age groups. Methods We randomly collected thin lumbar spine CT scan data from 202 patients stratified by gender and age (at the interval of 10 years). The data of each group were imported into Mimics 14.0 software to obtain independent Mask files using the new image segmentation method. The Mask files were used to fill the empty space and calculate mean, maximum, and minimum CT values. Results In the age groups of 21-30, 31-40, 41-50, 51-60, and 61-70 years, the male subjects had mean CT values of 424.94 ± 52.23 Hu, 405.59 ± 53.60 Hu, 361.76 ± 53.50 Hu, 344.17 ± 47.76 Hu, and 332.88 ± 58.33 Hu, respectively;the values in the female group were 439.89 ± 50.99 Hu, 448.06±65.89 Hu, 421.43±54.74 Hu, 369.07±78.27 Hu, and 304.98±55.05 Hu, respectively. The mean CT value in men aged 61-70 years was significantly lower than the values in men below 50 years (P<0.05), but comparable with that in those aged 51-60 years (P>0.05); The mean CT value was significantly lower in women aged 51-70 years groups than in those aged below 50 years (P<0.05). Conclusions The mean CT values are correlated with the bone density values. The new image segmentation method allows rapid and accurate acquisition of the CT values in the regions of interest. The lumbar mean CT values tend to decrease with age.

Objective To investigate the relationship between the mean CT value and bone density value and explore a rapid and accurate image segmentation method for lumbar CT values in different age groups. Methods We randomly collected thin lumbar spine CT scan data from 202 patients stratified by gender and age (at the interval of 10 years). The data of each group were imported into Mimics 14.0 software to obtain independent Mask files using the new image segmentation method. The Mask files were used to fill the empty space and calculate mean, maximum, and minimum CT values. Results In the age groups of 21-30, 31-40, 41-50, 51-60, and 61-70 years, the male subjects had mean CT values of 424.94 ± 52.23 Hu, 405.59 ± 53.60 Hu, 361.76 ± 53.50 Hu, 344.17 ± 47.76 Hu, and 332.88 ± 58.33 Hu, respectively;the values in the female group were 439.89 ± 50.99 Hu, 448.06±65.89 Hu, 421.43±54.74 Hu, 369.07±78.27 Hu, and 304.98±55.05 Hu, respectively. The mean CT value in men aged 61-70 years was significantly lower than the values in men below 50 years (P<0.05), but comparable with that in those aged 51-60 years (P>0.05); The mean CT value was significantly lower in women aged 51-70 years groups than in those aged below 50 years (P<0.05). Conclusions The mean CT values are correlated with the bone density values. The new image segmentation method allows rapid and accurate acquisition of the CT values in the regions of interest. The lumbar mean CT values tend to decrease with age.

Objective:To investigate effects of the ROCK1 gene on proliferation and migration of and related molecular expression in keloid fibroblasts.Methods:Immunohistochemical technique was used to detect ROCK1 protein expression in human keloids and normal skin tissues, and Western blot analysis was performed to detect the expression of ROCK1, transforming growth factor β1 (TGF-β1) and E-cadherin in keloid tissues. In vitro cultured human keloid fibroblasts (HKFs) were divided into 4 groups: ROCK1 gene overexpression control group (ROCK1 NC group) transfected with ROCK1 gene overexpression control vectors, ROCK1 gene overexpression group (ROCK1 OE group) transfected with ROCK1 gene overexpression vectors, ROCK1 gene knockdown control group (sh NC group) transfected with ROCK1 gene knockdown control vectors, and ROCK1 gene knockdown group (shROCK1 group) transfected with ROCK1 gene knockdown vectors. Cell counting kit-8 (CCK8) assay was performed to evaluate the effect of ROCK1 gene on the survival rate of HKFs, Transwell assay to evaluate the effect on the migration of HKFs, and real-time fluorescence-based quantitative PCR (qRT-PCR) and Western blot analysis were conducted to determine the mRNA and protein expression of ROCK1, TGF-β1 and E-cadherin, respectively. Results:Immunohistochemical study showed that ROCK1 protein expression decreased significantly in the human keloid tissues compared with the normal tissues ( t = 6.47, P = 0.003) ; Western blot analysis showed that the expression levels of ROCK1 and E-cadherin significantly decreased ( t = 14.02, 162.20, respectively, both P < 0.001), while TGF-β1 expression significantly increased ( t = 76.01, P < 0.001) in the keloid tissues compared with the expression levels of corresponding proteins in the normal tissues. CCK8 assay showed that the cell activity was significantly lower in the ROCK1 OE group than in the ROCK1 NC group after 24-hour transfection ( t = 3.25, 3.78, P = 0.031, 0.019, respectively), and significantly higher in the shROCK1 group than in the sh NC group ( t = 3.12, 2.79, P = 0.036, 0.049, respectively). Transwell assay showed that the number of migratory cells was significantly lower in the ROCK1 OE group than in the ROCK1 NC group ( t = 5.17, P = 0.004), and significantly higher in the shROCK1 group than in the sh NC group ( t = 9.28, P < 0.001). Compared with the ROCK1 NC group, the ROCK1 OE group showed significantly increased mRNA and protein expression levels of ROCK1 and E-cadherin ( P < 0.05 or < 0.001), but decreased mRNA and protein expression levels of TGF-β1 (both P < 0.001) ; compared with the sh NC group, the shROCK1 group showed significantly decreased mRNA and protein expression levels of ROCK1 and E-cadherin ( P < 0.05 or < 0.001), but significantly increased mRNA and protein expression levels of TGF-β1 ( P = 0.005 or < 0.001) . Conclusions:The ROCK1 gene can inhibit the proliferation and migration of HKFs. Overexpression of the ROCK1 gene can down-regulate the TGF-β1 gene expression and up-regulate the E-cadherin gene expression in HKFs.

OBJECTIVE: To build a physiological aging scale for healthy people.
 METHODS: We collected age-related physiologic items through literature screening and expert interview. Two rounds of Delphi were implemented. The importance, feasibility and the degree of authority for the physiological index system were graded. Using analytic hierarchy process, we determined the weight of dimensions and items.
 RESULTS: Using Delphy mothod, 17 physiological and other professional experts offered the results as follow: coefficient of expert authorities Cr was 0.86±0.03, coordination coefficients for the first and second round were 0.264(χ2=229.691, P<0.001) and 0.293(χ2=228.474，P<0.001), respectively. The consistency was good. The aging scale for healthy people included 3 dimensions, namely physical form, feeling movement and functional status. Each dimension had 8 items. The weight coefficients for the 3 dimensions were 0.54, 0.16, and 0.30, respectively. The Cronbach's α coefficient of the scale was 0.893, the reliability was 0.796, and the variance of the common factor was 58.17%.
 CONCLUSION The improved Delphi method or physiological aging scale is satisfied, which can provide reference for the evaluation of aging.
Aging ; physiology ; Delphi Technique ; Humans ; Reproducibility of Results