Objective To investigate the imaging features of intra-osseous ganglia surrounding the ankle joints and their diagnostic value.Methods Imaging features of 40 cases of intra-osseous ganglia proved by the pathology from 1 982 to 2012 were analyzed ret-rospectively.33 cases underwent radiography,26 cases underwent computed tomography (CT)and 13 cases underwent magnetic resonance imaging (MRI).Results Intra-osseous ganglia were detected at talus in 23 cases,distal tibia in 1 5 cases (8 cases in pos-terior melleolus,6 cases in medial melloulus and 1 case in anterior part of distal tibia),and lateral malleolus in 1 case.Multiple in-tra-osseous ganglia was detected in 1 case,which located in both talus and posterior malleolus.29 cases were oval,monolocular os-teolytic lesions.1 1 cases were multilocular lesions with separation.All cases were observed with slightly sclerous edge.Articular surface disruptions were observed in 1 5 cases,and lesions were connected with the joint space.① Oval cystic translucent areas with sharp and sclerous edge adjacent to the ankle joint were observed in 34 lesions of 33 cases on radiograph.Cracks were noted on the articular surface of 12 lesions.② Round translucent areas with sharp and sclerous edge were observed in 26 isolated lesions on CT images.Cracks were noted on the articular surface of 14 lesions.③ 14 lesions of 13 cases showed low to moderate signal on T1 WI and high signal on T2 WI.Cracks were observed in 4 lesions adjacent to the ankle joint,and soft tissue swelling was noted in 6 le-sions.Conclusion Intra-osseous ganglia can be diagnosed accurately based on the typical imaging features and special locations.

Objective To evaluate the clinical application value of reflectance confocal microscopy(RCM) in the diagnosis of several common diseases manifesting as papules in children, including lichen nitidus, verruca planae, lichen striatus, milium, molluscum contagiosum and lichen pilaris. Methods A total of 579 children clinically characterized by papules were recruited into this study. RCM was used to observe lesions and perilesional normal skin. The RCM features of 6 diseases manifesting as papules were analyzed and compared. Results Based on RCM images, 236 patients were diagnosed with lichen nitidus, 70 with verruca planae, 123 with lichen striatus, 40 with milium, 53 with molluscum contagiosum and 57 with lichen pilaris. All the 6 diseases had typical RCM features. Concretely speaking, RCM images of lichen nitidus lesions showed infiltration of dense inflammatory cells and melanophages in enlarged dermal papillae. In RCM images of verruca planae lesions, cells in the granular and spinous layers were arranged in concentric circles, giving a rose cluster?like appearance. RCM images of lichen striatus lesions revealed focal swelling of stratum spinosum, absent or local liquifaction degeneration of basal cells, and clustering of a moderate number of inflammatory cells in the superficial dermis. In RCM images of milium lesions, well?circumscribed round or oval structures containing highly but nonuniformly refractive materials could be seen in the dermis. RCM images of molluscum contagiosum lesions showed intact cystoid structures containing highly refractive molluscum bodies. Lowly to moderately refractive cutin ? like materials were observed along with the dilation of hair follicle infundibula in RCM images of lichen pilaris lesions. In RCM images, the 6 diseases were distinguished mainly based on structural features(patterns and refractivity)of skin lesions shown by continuous vertical scanning. Conclusion RCM is of great value to the diagnosis of diseases manifesting as papules in children.

Objective:To evaluate the role of Sigma-1 receptor (Sigma-1R) in pentazoxine-induced reduction of oxygen-glucose deprivation and restoration (OGD/R) injury in SH-SY5Y cells and the relationship with endoplasmic reticulum stress (ERS).Methods:The well-growing SH-SY5Y cells were divided into 4 groups ( n=6 each) using a random number table method: control group (group C), OGD/R group (group O), OGD/R+ pentazoxin group (group OP) and OGD/R+ pintazoxin+ BD1047 group (group OPB). The cells in group C were normally cultured. In O group, OP group and OPB group, the culture medium was replaced with EBSS medium, and then the cells were cultured in an incubator of 5% CO 2-95% N 2 at 37 ℃ for 4 h, then replaced with DMEM/F12 medium containing 10% fetal bovine serum for restoration of O 2-glucose supply for 18 h, and in addition pentazoxin (final concentration 10 μmmol/L) was added during restoration in OP group, and pentazoxin (final concentration 10 μmmol/L) and Sigma-1R blocker BD1047 (final concentration 20 μmol/L) were added during restoration in OPB group. The apoptosis rate was detected by flow cytometry at the end of restoration, and the expression of Sigma-1R, C/EBP homologous protein (CHOP), phosphorylated inositol-requiring enzyme 1 (p-IRE1), spliced X-box binding protein 1 (XBP1s), and activated caspase-3 (c-cas-3) was detected by Western blot. Results:Compared with group C, the apoptosis rate was significantly increased, and the expression of CHOP and p-IRE1 was up-regulated in O group, OP group and OPB group, the expression of XBP1s and c-cas-3 was significantly up-regulated in O group and OPB group ( P<0.05), and no significant change was found in the expression of Sigma-1R, XBP1s and c-cas-3 in OP group ( P>0.05). Compared with O group, the apoptosis rate was significantly decreased, the expression of Sigma-1R was up-regulated, and the expression of CHOP, p-IRE1, XBP1s and c-cas-3 was down-regulated in OP group ( P<0.05). Compared with OP group, the apoptosis rate was significantly increased, the expression of Sigma-1R was down-regulated, and the expression of CHOP, p-IRE1, XBP1s and c-cas-3 was up-regulated in OPB group ( P<0.05). Conclusions:Sigma-1R is involved in pentazoxine-induced reduction of OGD/R injury in SH-SY5Y cells, and the mechanism may be related to inhibition of endoplasmic reticulum stress.

Polyethersulfone (PES) hollow fibers were fabricated by dry-wet spinning method for hemodialysis application. The effects of additives polyethylene glycols (PEG) in the dope solution and of fiber thickness and inner diameter fiber on the membrane mechanical characters were investigated. The dialysis tests were conducted by using a simulated solution prepared by dissolving bovine serum albumin (BSA), lysozyme and urea in de-ionized water to test the effects of membrane characters and operating conditions on dialysis efficiency. The results indicated that the reduction of PEG concentration from 27.6 wt% to 24.1 wt% in the dope solution improved the clearance of toxins, but slightly decreased the mechanical characters. The reduction of fiber thickness or fiber inner diameter was found to improve the clearance of toxins by removing 64.2% of lysozyme and 89.4% of urea (membrane area 0.2 m2), whilst BSA retention was found being maintained above 98%. The dialysis efficiency was also noted to increase with the increase in the flow rate of either the simulated or the dialysate solution, or increasing the membrane area. Moreover, The result of a comparison on the clearance of toxins between commercial F60S and PES dialyzers indicated higher dialysis efficiency per area of the fabricated PES membrane.
Biocompatible Materials ; therapeutic use ; Evaluation Studies as Topic ; Membranes, Artificial ; Polyethylene Glycols ; chemistry ; Polymers ; chemistry ; Renal Dialysis ; instrumentation ; methods ; Sulfones ; chemistry

Objective To investigate the effect of acupuncture at Yangming meridian combined with modified Buyang Huanwu Decoction on hemiplegia,hemorheology and neurotrophic factors in pa-tients with cerebral infarction differentiated as type of Qi deficiency and blood stasis.Methods A to-tal of 84 hospitalized patients with cerebral infarction differentiated as type of Qi deficiency and blood stasis from March 2018 to June 2023 were selected as research objects,and they were randomly divid-ed into observation group and control group,with 42 cases in each group.The control group was con-ducted with acupuncture and routine treatment,while the observation group was conducted with modi-fied Buyang Huanwu Decoction on the basis of the control group.Clinical efficacy after 2 weeks of treatment as well as the scores of main symptoms,neurological function,limb function,hemorheologi-cal indicators and levels of neurotrophic factors before and after treatment were compared between two groups.Results After 2 weeks of treatment,the total effective rate of the observation group was sig-nificantly higher than that of the control group(P＜0.05);after treatment,the scores of symptoms such as hemiplegia,deviated mouth and awkward speech in both groups decreased significantly when compared to those before treatment,and these scores in the observation group were significantly lower than those in the control group(P＜0.05).After treatment,the score of the National Institutes of Health Stroke Scale(NIHSS)in both groups decreased significantly when compared to that before treat-ment,and the score in the observation group was significantly lower than that in the control group(P＜0.05);the score of the Motor Function Assessment Scale(Fugl-Meyer)after treatment in both groups was significantly higher than that before treatment,and the observation group was significant-ly higher than that in the control group(P＜0.05).After treatment,the plasma viscosity,red blood cell aggregation index,whole blood high shear viscosity and whole blood low shear viscosity in both groups decreased significantly when compared to those before treatment,and these indexes in the observation group were significantly lower than those in the control group(P＜0.05).After treatment,the levels of serum brain derived neurotrophic factor(BDNF),nerve growth factor(NGF)and glial cell line-derived neurotrophic factor(GDNF)in both groups increased significant-ly when compared to those before treatment,and the levels of these indexes in the observation group were significantly higher than those in the control group(P＜0.05).Conclusion Acupuncture at Yangming meridian combined with modified Buyang Huanwu Decoction can enhance the therapeutic effect for patients with cerebral infarction differentiated as type of Qi deficiency and blood stasis,im-prove clinical symptoms,repair nerve damage,and promote the recovery of limb function.

Objective To investigate the effect of acupuncture at Yangming meridian combined with modified Buyang Huanwu Decoction on hemiplegia,hemorheology and neurotrophic factors in pa-tients with cerebral infarction differentiated as type of Qi deficiency and blood stasis.Methods A to-tal of 84 hospitalized patients with cerebral infarction differentiated as type of Qi deficiency and blood stasis from March 2018 to June 2023 were selected as research objects,and they were randomly divid-ed into observation group and control group,with 42 cases in each group.The control group was con-ducted with acupuncture and routine treatment,while the observation group was conducted with modi-fied Buyang Huanwu Decoction on the basis of the control group.Clinical efficacy after 2 weeks of treatment as well as the scores of main symptoms,neurological function,limb function,hemorheologi-cal indicators and levels of neurotrophic factors before and after treatment were compared between two groups.Results After 2 weeks of treatment,the total effective rate of the observation group was sig-nificantly higher than that of the control group(P＜0.05);after treatment,the scores of symptoms such as hemiplegia,deviated mouth and awkward speech in both groups decreased significantly when compared to those before treatment,and these scores in the observation group were significantly lower than those in the control group(P＜0.05).After treatment,the score of the National Institutes of Health Stroke Scale(NIHSS)in both groups decreased significantly when compared to that before treat-ment,and the score in the observation group was significantly lower than that in the control group(P＜0.05);the score of the Motor Function Assessment Scale(Fugl-Meyer)after treatment in both groups was significantly higher than that before treatment,and the observation group was significant-ly higher than that in the control group(P＜0.05).After treatment,the plasma viscosity,red blood cell aggregation index,whole blood high shear viscosity and whole blood low shear viscosity in both groups decreased significantly when compared to those before treatment,and these indexes in the observation group were significantly lower than those in the control group(P＜0.05).After treatment,the levels of serum brain derived neurotrophic factor(BDNF),nerve growth factor(NGF)and glial cell line-derived neurotrophic factor(GDNF)in both groups increased significant-ly when compared to those before treatment,and the levels of these indexes in the observation group were significantly higher than those in the control group(P＜0.05).Conclusion Acupuncture at Yangming meridian combined with modified Buyang Huanwu Decoction can enhance the therapeutic effect for patients with cerebral infarction differentiated as type of Qi deficiency and blood stasis,im-prove clinical symptoms,repair nerve damage,and promote the recovery of limb function.

OBJECTIVE: To study the chemical constituents of the roots of Angelica dahurica, a well-known Chinese herbal medicine named Baizhi in Chinese. METHODS: Compounds were separated by various chromatographies, and the structures of new compounds were elucidated based on the analysis of their spectroscopic and spectrometric data (1D, 2D NMR, HRESI MS, IR, and UV). The absolute configurations of new compounds were determined by the calculated electronic circular dichroism and chemical derivatization. The inhibitory activities of all isolates against nitric oxide (NO) production were evaluated using lipopolysaccharide-activated RAW 264.7 macrophage cells. RESULTS: Seven new 3,4-dihydro-furanocoumarin derivatives ( 1a/ 1b, 2a/ 2b, 3a/ 3b, 4) together with a known furanocoumarin ( 5) were isolated from the roots of A. dahurica. The new compounds included three pairs of enantiomers, (4S, 2''R)-angelicadin A ( 1a)/(4R, 2''S)-angelicadin A ( 1b), (4S, 2''S)-angelicadin A ( 2a)/(4R, 2''R)-angelicadin A ( 2b), and (4S, 2''S)-secoangelicadin A ( 3a)/(4R, 2''R)-secoangelicadin A ( 3b), together with (4R, 2''R)-secoangelicadin A methyl ester ( 4). The known xanthotoxol ( 5) inhibited the NO production with the half-maximal inhibitory concentration (IC₅₀) value of (32.8 ± 0.8) µmol/L, but all the new compounds showed no inhibitory activities at the concentration of 100 µmol/L. CONCLUSION This is the first report of the discovery of 3,4-dihydro-furanocoumarins from A. dahurica. The results are not only meaningful for the understanding of the chemical constituents of A. dahurica, but also enrich the reservoir of natural products.