1.Lateral view fulcrum bending radiographs predict postoperative hypokyphosis after selective thoracic fusion in adolescent idiopathic scoliosis
Victoria Yuk Ting HUI ; Jason Pui Yin CHEUNG ; Prudence Wing Hang CHEUNG
Asian Spine Journal 2025;19(1):102-111
Methods:
Patients with Lenke 1 AIS undergoing posterior spinal fusion were included. Standing and fulcrum bending radiographs on the coronal and sagittal planes were analyzed at preoperative, immediate, and 2-year postoperative periods. The primary outcome was postoperative hypokyphosis (T5–12 thoracic kyphosis [TK] <20°). Risk factors for postoperative hypokyphosis were identified by multivariate logistic regression, and the optimal cutoff for significant risk factors was determined by receiver operating characteristic analysis.
Results:
In total, 156 patients were included in the analysis, of which 68 (43.6%) were hypokyphotic at 2-year follow-up. Low T5–12 TK on lateral view fulcrum bending films (immediate postoperative odds ratio [OR], 0.870; 95% confidence interval [CI], 0.826–0.917; 2-year postoperative OR, 0.916; 95% CI, 0.876–0.959; p<0.001) and high convex side implant density (2-year postoperative OR, 1.749; 95% CI, 1.056–2.897; p=0.03) were significant risk factors for postoperative hypokyphosis. Other baseline demographic and surgical factors did not affect postoperative kyphosis correction. The T5–12 TK cutoff on fulcrum bending for 2-year postoperative hypokyphosis was 12.45° (area under the curve, 0.773; 95% CI, 0.661–0.820).
Conclusions
Fulcrum bending radiography is useful in assessing coronal and sagittal flexibility for preoperative planning. In patients with T5–12 kyphosis <12.5° on lateral view fulcrum bending radiographs, Ponte osteotomies or releases, or a decrease in convex side implant density should be considered to improve kyphosis restoration and reduce the risk of 2-year postoperative hypokyphosis.
2.Lateral view fulcrum bending radiographs predict postoperative hypokyphosis after selective thoracic fusion in adolescent idiopathic scoliosis
Victoria Yuk Ting HUI ; Jason Pui Yin CHEUNG ; Prudence Wing Hang CHEUNG
Asian Spine Journal 2025;19(1):102-111
Methods:
Patients with Lenke 1 AIS undergoing posterior spinal fusion were included. Standing and fulcrum bending radiographs on the coronal and sagittal planes were analyzed at preoperative, immediate, and 2-year postoperative periods. The primary outcome was postoperative hypokyphosis (T5–12 thoracic kyphosis [TK] <20°). Risk factors for postoperative hypokyphosis were identified by multivariate logistic regression, and the optimal cutoff for significant risk factors was determined by receiver operating characteristic analysis.
Results:
In total, 156 patients were included in the analysis, of which 68 (43.6%) were hypokyphotic at 2-year follow-up. Low T5–12 TK on lateral view fulcrum bending films (immediate postoperative odds ratio [OR], 0.870; 95% confidence interval [CI], 0.826–0.917; 2-year postoperative OR, 0.916; 95% CI, 0.876–0.959; p<0.001) and high convex side implant density (2-year postoperative OR, 1.749; 95% CI, 1.056–2.897; p=0.03) were significant risk factors for postoperative hypokyphosis. Other baseline demographic and surgical factors did not affect postoperative kyphosis correction. The T5–12 TK cutoff on fulcrum bending for 2-year postoperative hypokyphosis was 12.45° (area under the curve, 0.773; 95% CI, 0.661–0.820).
Conclusions
Fulcrum bending radiography is useful in assessing coronal and sagittal flexibility for preoperative planning. In patients with T5–12 kyphosis <12.5° on lateral view fulcrum bending radiographs, Ponte osteotomies or releases, or a decrease in convex side implant density should be considered to improve kyphosis restoration and reduce the risk of 2-year postoperative hypokyphosis.
3.Lateral view fulcrum bending radiographs predict postoperative hypokyphosis after selective thoracic fusion in adolescent idiopathic scoliosis
Victoria Yuk Ting HUI ; Jason Pui Yin CHEUNG ; Prudence Wing Hang CHEUNG
Asian Spine Journal 2025;19(1):102-111
Methods:
Patients with Lenke 1 AIS undergoing posterior spinal fusion were included. Standing and fulcrum bending radiographs on the coronal and sagittal planes were analyzed at preoperative, immediate, and 2-year postoperative periods. The primary outcome was postoperative hypokyphosis (T5–12 thoracic kyphosis [TK] <20°). Risk factors for postoperative hypokyphosis were identified by multivariate logistic regression, and the optimal cutoff for significant risk factors was determined by receiver operating characteristic analysis.
Results:
In total, 156 patients were included in the analysis, of which 68 (43.6%) were hypokyphotic at 2-year follow-up. Low T5–12 TK on lateral view fulcrum bending films (immediate postoperative odds ratio [OR], 0.870; 95% confidence interval [CI], 0.826–0.917; 2-year postoperative OR, 0.916; 95% CI, 0.876–0.959; p<0.001) and high convex side implant density (2-year postoperative OR, 1.749; 95% CI, 1.056–2.897; p=0.03) were significant risk factors for postoperative hypokyphosis. Other baseline demographic and surgical factors did not affect postoperative kyphosis correction. The T5–12 TK cutoff on fulcrum bending for 2-year postoperative hypokyphosis was 12.45° (area under the curve, 0.773; 95% CI, 0.661–0.820).
Conclusions
Fulcrum bending radiography is useful in assessing coronal and sagittal flexibility for preoperative planning. In patients with T5–12 kyphosis <12.5° on lateral view fulcrum bending radiographs, Ponte osteotomies or releases, or a decrease in convex side implant density should be considered to improve kyphosis restoration and reduce the risk of 2-year postoperative hypokyphosis.
4.Research on the molecular mechanisms of ABO subtypes based on first-generation and third-generation sequencing technologies
Chengyan GAO ; Hui ZHANG ; Hang LEI ; Can LOU ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2025;38(7):928-933
Objective: To accurately determine the ABO blood group of samples exhibiting forward/reverse grouping discrepancies by combining first-generation (Sanger) and third-generation (long-read) sequencing technologies. Methods: Five samples with ABO forward/reverse grouping discrepancies were selected. Serological testing was conducted using automated blood typing instruments and the tube method. Genotyping was conducted using both Sanger and long-read sequencing technologies. Results: Sanger sequencing identified specific genetic mutations in two samples, with genotypes of ABO
BA. 04/ABO
O.01.01 and ABO
B3.05/ABO
O.01.02. Further analysis with long-read sequencing revealed specific mutations in the +5.8kb region of intron 1 (c.28+5885C>T and c.28+5861T>G) in three samples where mutations were not detected by Sanger sequencing. These mutations affect the expression of the ABO antigens and are likely responsible for the ABO subgroup phenotypes. Conclusion: The integration of Sanger and long-read sequencing technologies effectively identifies genetic variations causing ABO subtypes, providing a scientific basis for enhancing clinical transfusion safety and ensuring accurate blood group determination.
5.Research on the molecular mechanisms of ABO subtypes based on first-generation and third-generation sequencing technologies
Chengyan GAO ; Hui ZHANG ; Hang LEI ; Can LOU ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2025;38(7):928-933
Objective: To accurately determine the ABO blood group of samples exhibiting forward/reverse grouping discrepancies by combining first-generation (Sanger) and third-generation (long-read) sequencing technologies. Methods: Five samples with ABO forward/reverse grouping discrepancies were selected. Serological testing was conducted using automated blood typing instruments and the tube method. Genotyping was conducted using both Sanger and long-read sequencing technologies. Results: Sanger sequencing identified specific genetic mutations in two samples, with genotypes of ABO
BA. 04/ABO
O.01.01 and ABO
B3.05/ABO
O.01.02. Further analysis with long-read sequencing revealed specific mutations in the +5.8kb region of intron 1 (c.28+5885C>T and c.28+5861T>G) in three samples where mutations were not detected by Sanger sequencing. These mutations affect the expression of the ABO antigens and are likely responsible for the ABO subgroup phenotypes. Conclusion: The integration of Sanger and long-read sequencing technologies effectively identifies genetic variations causing ABO subtypes, providing a scientific basis for enhancing clinical transfusion safety and ensuring accurate blood group determination.
6. Mechanism and experimental validation of Zukamu granules in treatment of bronchial asthma based on network pharmacology and molecular docking
Yan-Min HOU ; Li-Juan ZHANG ; Yu-Yao LI ; Wen-Xin ZHOU ; Hang-Yu WANG ; Jin-Hui WANG ; Ke ZHANG ; Mei XU ; Dong LIU ; Jin-Hui WANG
Chinese Pharmacological Bulletin 2024;40(2):363-371
Aim To anticipate the mechanism of zuka- mu granules (ZKMG) in the treatment of bronchial asthma, and to confirm the projected outcomes through in vivo tests via using network pharmacology and molecular docking technology. Methods The database was examined for ZKMG targets, active substances, and prospective targets for bronchial asthma. The protein protein interaction network diagram (PPI) and the medication component target network were created using ZKMG and the intersection targets of bronchial asthma. The Kyoto Encyclopedia of Genes and Genomics (KEGG) and gene ontology (GO) were used for enrichment analysis, and network pharmacology findings were used for molecular docking, ovalbumin (OVA) intraperitoneal injection was used to create a bronchial asthma model, and in vivo tests were used to confirm how ZKMG affected bronchial asthma. Results There were 176 key targets for ZKMG's treatment of bronchial asthma, most of which involved biological processes like signal transduction, negative regulation of apoptotic processes, and angiogenesis. ZKMG contained 194 potentially active components, including quercetin, kaempferol, luteolin, and other important components. Via signaling pathways such TNF, vascular endothelial growth factor A (VEGFA), cancer pathway, and MAPK, they had therapeutic effects on bronchial asthma. Conclusion Key components had strong binding activity with appropriate targets, according to molecular docking data. In vivo tests showed that ZKMG could reduce p-p38, p-ERKl/2, and p-I
7.Enhancement of tropane alkaloids biosynthesis in Atropa belladonna hariy root by overexpression of HnCYP82M3 and DsTRI genes
De-hui MU ; Yan-hong LIU ; Piao-piao CHEN ; Ai-juan TAN ; Bing-nan MA ; Hang PAN ; Ming-sheng ZHANG ; Wei QIANG
Acta Pharmaceutica Sinica 2024;59(3):775-783
Tropane alkaloids (TAs) are a class of anticholinergic drugs widely used in clinical practice and mainly extracted from plant, among which
8.In Situ Labeling of Erythrocyte Membrane Anion Channel Proteins with Gold Nanoparticles Observed by Cryo-Scanning Electron Microscopy
Si-Hang CHENG ; Hui-Li WANG ; Yang YU ; Jin-Rui ZHANG ; Hong-Da WANG
Chinese Journal of Analytical Chemistry 2024;52(1):54-61
Band 3 protein is an important channel protein in the erythrocyte membrane which mediates the anion transport process inside and outside the cell membrane,as well as contributes to the maintenance of erythrocyte morphology,and has important physiological functions.However,the distribution state of this protein in the primary cell membrane is not known.Cryo-scanning electron microscopy enables imaging of the surface morphology of biological samples in a near-physiological state.In order to investigate the distribution of band 3 protein on erythrocyte membranes under physiological conditions,the present study utilized 5-nm gold nanoparticles modified with the antibodies to specifically bind to the band 3 protein on human blood erythrocyte membranes and imaged them by cryo-scanning electron microscopy,to obtain distribution of band 3 protein on human blood erythrocyte membranes.The results showed that the membrane proteins on the erythrocyte membranes tended to be clustered and distributed to form ″protein islands″,and band 3 proteins were mainly distributed in these protein islands,which were tightly connected with each other to form several functional microregions to play their respective roles.
9.Surveillance results of diarrhea in Minhang District of Shanghai City in 2018-2020
Hui FANG ; Yue ZHANG ; Zhaowen ZHANG ; Long CHEN ; Zhiying XYU ; Xuanzhao ZHANG
Journal of Public Health and Preventive Medicine 2024;35(1):79-82
Objective To investigate the epidemic features and pathogen spectrum distribution of diarrhea cases in Minhang District of Shanghai City so as to provide scientific evidence for developing prevention and control measures. Methods Surveillance on diarrhea was conducted in sentinel hospitals in Minghang District from 2018 to 2020. According to the quantity of outpatients in the monitoring hospital, the stool samples were collected by systematic sampling method according to the fixed interval proportion in the case queue which met the requirements of the monitored cases, and the pathogenic composition and epidemiological characteristics were analyzed. Results Among the 721 samples detected , 307(42.58%) were pathogen positive, The main positive bacteria was Vibrio parahaemolyticus, which accounted for 36.11%(39/108) among all positive bacteria.The main positive virus was norovirus GII, which accounted for 24.43%(75/307) among all positive virus. Positive cases were detected among all age groups. 81 positive cases (26.38%) were detected among 31-40 years old, with the highest detection rate. There was no difference in the positive detection rate between genders(χ2= 1.95, P = 0.16). The positive cases showed two peaks during the season of winter and spring. The positive rate of bacteria was highest in the third quarter and positive rate of viruses was highest in the first quarter. The mixed infection rate of bacteria and viruses was highest in the second quarter. Conclusions Diarrhea cases in Minhang District of Shanghai from 2018 to 2020 is caused by a variety of pathogens and related seasonality is obvious in Minghang District, Shanghai City in 2018-2020. It is necessary to take specific prevention based on various pathogens to reduce the incidence of diarrhea.
10.Molecular mechanism of ABO bood group variation
Hang LEI ; Xuefeng WANG ; Xiaowen CHENG ; Hui ZHANG ; Xiaohong CAI
Chinese Journal of Blood Transfusion 2024;37(4):385-391
【Objective】 To study the relationship between ABO subtype, para-Bombay blood group and genotype, so as to explore the possible molecular mechanism of these two blood groups, and provide accurate genetic detection targets and theoretical basis for the accurate identification of ABO blood group. 【Methods】 First, the serology of 24 200 patients with blood type identification in the Ruijin Hospital from February to December in 2022 were analyzed, as well as 10 ambiguous ABO samples from other hospitals(3 were suspected ABO subtype and 7 were suspected para-Bombay blood group). Then ABO subtypes and para-Bombay blood groups were directly sequenced or post-clonal sequencing was performed to analyze ABO, FUT1 and FUT2 gene sequences. 【Results】 Among the 24 200 patients underwent blood type identification, 7 cases of ABO subtypes were detected. Among the 10 ambiguous samples sent by other hospitals, 2 of ABO subtypes, 1 of normal type A, and 7 of para-Bombay blood type were detected. In total, we identified blood types as follows: 1) 9 ABO subtypes: A


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