1.Comparison of the efficacy of heat and acid elution methods for IgG anti-M and anti-Ku
Qunjuan ZENG ; Huaiying KANG ; Dong XIANG ; Wei SHEN ; Chengrui QIAN ; Zhongying WANG ; Guoqin GONG
Chinese Journal of Blood Transfusion 2025;38(7):964-968
Objective: To compare the efficacy of heat and acid elution methods for IgG anti-M and anti-Ku. Methods: Ten samples with IgG anti-M and two samples with IgG anti-Ku were selected and standardized to a titer of 64. These antibodies underwent overnight absorption at 4℃ with O-type MM and kk-type erythrocytes, and then heat and acid elution methods were used on the absorbed sensitized erythrocytes respectively by detecting the titer of anti-M and anti-Ku in the eluate to compare the differences in the elution efficiency of IgG anti-M and anti-Ku between the two elution methods. Results: In heat elution tests, all 10 anti-M samples showed positive results with titers ranging from 8 to 64, while 2 anti-Ku samples yielded negative results. In acid elution tests, all 10 anti-M samples demonstrated negative results, whereas both anti-Ku (n=2) samples exhibited positive reactions with consistent titers of 32. Following acid elution with subsequent heat elution, 8 of 10 anti-M samples showed positive results with titers ranging from 8 to 32, while 2 remained negative. Both anti-Ku samples demonstrated positive with titers of 4. Conclusion: Heat elution demonstrated superior efficiency for IgG anti-M compared to acid elution, whereas acid elution showed greater efficacy for IgG anti-Ku than heat elution.
2.Comparison of the efficacy of heat and acid elution methods for IgG anti-M and anti-Ku
Qunjuan ZENG ; Huaiying KANG ; Dong XIANG ; Wei SHEN ; Chengrui QIAN ; Zhongying WANG ; Guoqin GONG
Chinese Journal of Blood Transfusion 2025;38(7):964-968
Objective: To compare the efficacy of heat and acid elution methods for IgG anti-M and anti-Ku. Methods: Ten samples with IgG anti-M and two samples with IgG anti-Ku were selected and standardized to a titer of 64. These antibodies underwent overnight absorption at 4℃ with O-type MM and kk-type erythrocytes, and then heat and acid elution methods were used on the absorbed sensitized erythrocytes respectively by detecting the titer of anti-M and anti-Ku in the eluate to compare the differences in the elution efficiency of IgG anti-M and anti-Ku between the two elution methods. Results: In heat elution tests, all 10 anti-M samples showed positive results with titers ranging from 8 to 64, while 2 anti-Ku samples yielded negative results. In acid elution tests, all 10 anti-M samples demonstrated negative results, whereas both anti-Ku (n=2) samples exhibited positive reactions with consistent titers of 32. Following acid elution with subsequent heat elution, 8 of 10 anti-M samples showed positive results with titers ranging from 8 to 32, while 2 remained negative. Both anti-Ku samples demonstrated positive with titers of 4. Conclusion: Heat elution demonstrated superior efficiency for IgG anti-M compared to acid elution, whereas acid elution showed greater efficacy for IgG anti-Ku than heat elution.
3.Effect of modified Baduanjin exercise on cardiopulmonary function, motor function and activities of daily living for stroke patients
Junwen CHEN ; Qian CHEN ; Cheng CHEN ; Shuyue LI ; Lingling LIU ; Cunshu WU ; Xiang GONG ; Jun LU ; Guangxu XU
Chinese Journal of Rehabilitation Theory and Practice 2024;30(1):74-80
ObjectiveTo investigate the effect of modified Baduanjin exercise, as an rehabilitation exercise, on cardiopulmonary function, motor function and activities of daily living in patients with stroke. MethodsFrom January to September, 2023, 42 stroke patients in the Nanjing Qixia District Hospital were randomly divided into control group (n = 21) and experimental group (n = 21). The control group received routine rehabilitation, and the experimental group received modified Baduanjin exercise in addition, for four weeks. They were assessed with peak oxygen uptake (VO2peak), anaerobic threshold (AT), peak oxygen pulse (VO2peak/HR), forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), peak expiratory flow (PEF), Fugl-Meyer Assessment-upper extremities (FMA-UE), Berg Balance Scale (BBS) and modified Barthel Index (MBI) before and after intervention. ResultsVO2peak, AT, and the scores of FMA-UE, BBS and MBI improved in the control group after intervention (|t| > 2.256, |Z| > 2.936, P < 0.05); while VO2peak, AT, VO2peak/HR, FVC, FEV1, PEF, and the scores of FMA-UE, BBS and MBI improved in the experimental group (|t| > 4.390, |Z| > 3.451, P < 0.001); and all the indexes were better in the experimental group than in the control group (|t| > 4.136,|Z| > 2.751,P < 0.01), except the scores of BBS and MBI. ConclusionModified Baduanjin exercise can improve the cardiopulmonary function and upper limb motor function for stroke patients.
4.Construction of glucosamine/DNA composite nanomaterials and its effect on function of Raw264.7 cells
Yuhang XU ; Yue CHEN ; Qing XIANG ; Shuoxin ZHANG ; Daohui GONG ; Di WU ; Guansong WANG ; Hang QIAN
Journal of Army Medical University 2024;46(13):1494-1501
Objective To construct a new type of glucosamine/DNA composite nanostructure(NTGlcN)assembled without magnesium,verify whether or not glucosamine can mediate the assembly of DNA nanotubes(NT)and assess its effect on the function of Raw264.7 cells.Methods Utilizing the gradient annealing method with 3 DNA single strands Y1,Y2,and Y3,glucosamine(GlcN)was employed to mediate the assembly of DNA NT,resulting in the formation of glucosamine/DNA composite nanostructures.Atomic force microscopy(AFM)was used to observe the surface structure of the nanomaterial and dynamic light scattering(DLS)was used to measure its size.RAW264.7 cells were used in cell experiments.The cytotoxicity of GlcN and NTGlcN was assessed using CCK-8 assay.Flow cytometry and laser confocal microscopy were employed to investigate the cellular uptake efficiency of the nanostructures.The effects of NTGlcN and NTMg(Mg2+-assembled of DNA NT)on the expression levels of inflammatory cytokines(IL-1β,IL-6)in macrophages induced by lipopolysaccharides(LPS)were evaluated using RT-qPCR.Results GlcN successfully mediated the synthesis of NTGlcN,which exhibited good stability.AFM characterization results revealed that NTGlcN formed tubular particles that were uniformly distributed on the surface of mica.DLS measurements indicated that the diameter of NTGlcN was approximately 15.26±3.86 nm.Cell experiments demonstrated that,compared to NTMg,macrophages exhibited a higher cellular uptake efficiency for NTGlcN,with a higher cell survival rate following treatment with NTGlcN(P<0.05).After NTGlcN treatment,the expression of inflammatory cytokines in LPS-induced macrophages was reduced(P<0.05).Conclusion The glucosamine/DNA composite nanostructures have been successfully developed,possessing excellent stability,biocompatibility and cell uptake efficiency.NTGlcN is capable of reducing the cytotoxicity of GlcN and can suppress cellular inflammatory responses by decreasing the expression of inflammatory cytokines in RAW264.7 cells.
5.Safety of delayed vaccination with the national immunization program vaccines in children aged 0-6 years from 2019 to 2021 in Xuhui District, Shanghai City in China.
Qiang Song WU ; Shu Qian MAO ; Yan XU ; Rui Jie GONG ; Qi ZHOU ; Min LIU ; Jing Yi LIU ; Dan Hong ZHU ; Xiang GUO
Chinese Journal of Preventive Medicine 2023;57(7):983-991
Objective: To understand the incidence of delayed vaccination with the national immunization program vaccines among children aged 0-6 years in Xuhui District, Shanghai, and to evaluate the safety of delayed vaccination. Methods: A stratified random sampling was used to obtain six vaccination clinics in Xuhui District, Shanghai. The vaccination records of children 0-6 years from these six vaccination clinics were collected from the Shanghai Immunization Program Information Management System. Adverse events following immunization (AEFI) data were collected from the China Information System for Disease Control and Prevention. Descriptive epidemiology was used to analyze the data. Children were divided into the timely vaccination group and delayed vaccination group according whether they were delayed in vaccination (received one month or more after the recommended age among children aged ≤1 year; received three months or more after the recommended age among children aged >1 year). The safety of four vaccination methods-individual vaccination, simultaneous vaccination, routine vaccination and combined vaccination-were further compared. Differences between groups were compared using chi-square test. Results: From 2019 to 2021, six vaccination clinics in Xuhui District administered 124 031 doses of the national immunization program vaccines among children aged 0-6 years, and delayed vaccinations accounted for 25.99% (32 234/124 031) of these doses. In 2020, the delayed vaccination rate during the first-level COVID-19 public health emergency response period in Shanghai was significantly higher than that in the same period in 2019 (34.70% vs. 24.19%, χ2=136.23, P<0.05). The delayed vaccination rate during the COVID-19 vaccination campaign in 2021 was significantly higher than that in the same period in 2019 (25.27% vs. 22.55%, χ2=82.80, P<0.05). From 2019 to 2021, a total of 475 cases of AEFI were reported in six vaccination clinics, with a reported incidence of 382.97 per 100 000 doses, including 421 cases of common adverse reaction (88.63%, 339.43 per 100 000 doses), 51 cases of rare adverse reaction (10.74%, 41.12 per 100 000 doses) and 3 cases of coincidences (0.63%, 2.42 per 100 000 doses). The reported incidence of AEFI among delayed vaccinations was significantly lower than that among timely vaccinations (291.62 per 100 000 doses vs. 415.05 per 100 000 doses). The incidence of AEFI for the four delayed vaccination methods (individual vaccination, simultaneous vaccination, routine vaccination and combined vaccination) was lower than that for timely vaccination. There were significant differences between the groups except for the routine vaccination group (χ2=9.82, P<0.05; χ2=5.46, P<0.05; χ2=2.97, P>0.05; χ2=11.89, P<0.05). Conclusions: In Xuhui District of Shanghai, 25.99% of doses of the national immunization program vaccines administered to children 0-6 years were delayed. Delayed vaccination does not increase the risk of AEFI compared with timely vaccination.
6.Analysis of the clinical effect of percutaneous pedicle screw fixation combined with transpedicular bone grafting in the treatment of thoracolumbar fracture.
Xiang-Qian LI ; Ming-Hu WU ; Dong-Liang GONG ; Jun ZHANG ; Wen-Qin FU ; Ru-Feng GAO ; Nong CHEN
China Journal of Orthopaedics and Traumatology 2023;36(10):936-942
OBJECTIVE:
To investigate the clinical efficacy of percutaneous screw fixation combined with minimally invasive transpedicular bone grafting and non-bone grafting in the treatment of thoracolumbar fractures.
METHODS:
From Janury 2021 to June 2022, 40 patients with thoracolumbar fracture were divided into the experimental group and the control group. There were 26 patients in the experimental group, including 21 males and 5 females with an aberage age of (47.3±12.3) years old, who underwent percutaneous pedicle screw fixation combined with transpedicular autogenous bone grafting. In the control group, 14 patients received percutaneous pedicle screw fixation only. including 7 makes and 7 females with an average age of (50.2±11.2) years old. The operative time, intraoperative blood loss, anterior height ratio of injured vertebrae, Cobb angle, visual analogue score (VAS), MacNab scores, loosening or broken of the implants. were compared and analyzed.
RESULTS:
There was no significant difference in operation time, intraoperative blood loss, VAS and anterior height ratio of injured vertebrae between the two groups. Compared with the preoperative results, VAS and anterior height ratio of injured vertebrae were improved statistically(P<0.05). For Cobb angle of injured vertebra, there was no significant difference between the two groups before surgery (P=0.766). While at 1 week, 3 months and 12 months after surgery, there were statistically differences between the two groups (P values were 0.042, 0.007 and 0.039, respectively). The Cobb angle of injured vertebrae one year after operation was statistically decreased in both groups compared with that before surgery (P<0.001). One year after surgery, the excellent and good rate of Macnab scores was 96.15% in the experimental group and 92.86% in the control group, and there was no statistical differences between the two groups (P=0.648). There was one patient in the control group suffering superficial wound infection on the third day, which was cured by dressing change and anti-infection treatment. There were no postoperative screw loosening and broken in both groups.
CONCLUSION
The two surgical methods have the advantages of less trauma, less pain and quicker recovery, which can restore the height of the injured vertebra, reconstruct the spinal sequence and reduce the fracture of the vertebral body. Transpedicular autogenous bone grafting can increase the stability of the fractured vertebra and maintain the height of the vertebra better after surgery, thus reducing the possibility of complications such as kyphosis, screw loosening and broken.
Male
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Female
;
Humans
;
Adult
;
Middle Aged
;
Pedicle Screws
;
Bone Transplantation
;
Blood Loss, Surgical
;
Lumbar Vertebrae/injuries*
;
Thoracic Vertebrae/injuries*
;
Fracture Fixation, Internal/methods*
;
Spinal Fractures/surgery*
;
Treatment Outcome
;
Retrospective Studies
7.Explanation of Scientific Connotation of Euodiae Fructus Stir-fried with Coptidis Rhizoma Based on UPLC-Q-TOF/MS and Pattern Recognition Technology
Wenyan ZHAO ; Qian XIANG ; Chan WANG ; Qianfeng GONG ; Huan YU
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(21):147-155
ObjectiveTo analyze changes of the chemical composition in Euodiae Fructus before and after processing with Coptidis Rhizoma decoction, so as to provide scientific basis for elucidating the processing mechanism of this decoction pieces. MethodUltra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF/MS) was performed on a Titank C18 column (2.1 mm×100 mm, 1.8 μm), the mobile phase was 0.1% formic acid aqueous solution-acetonitrile for gradient elution, the column temperature was set at 40 ℃, the flow rate was 0.25 mL·min-1. Electrospray ionization (ESI) was used to scan in positive and negative ion modes, and the scanning range was m/z 50-1 250. The chemical constituents in Euodiae Fructus were identified before and after processing by reference substance comparison, database matching and literature reference, and MarkerView™ 1.2.1 software was used to normalize the obtained data, SIMCA-P 14.1 software was employed to perform principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) on MS data of raw and processed products to screen the differential components before and after processing. ResultA total of 50 compounds were identified, including 48 kinds of stir-fried products with Coptidis Rhizoma decoction and 44 kinds of raw products. After processing, six compounds were added, including danshensu, noroxyhydrastinine, oxyberberine, 13-methylberberrubine, protopine and canadine. However, two kinds of compounds, including (S)-7-hydroxysecorutaecarpine and wuchuyuamide Ⅱ, were not detected after processing. In general, after processing, the overall contents of phenolic acids and flavonoids decreased significantly, the overall content of limonoids increased, and the overall content of alkaloids did not decrease insignificantly. The results of PCA and OPLS-DA showed that there were significant differences in the composition and content of the chemical components of Euodiae Fructus before and after processing, and a total of 12 variables such as quercetin, dihydrorutaecarpine and dehydroevodiamine were obtained by screening. ConclusionEuodiae Fructus stir-fried with Coptidis Rhizoma decoction mainly contains phenolic acids, flavonoids, limonoids and alkaloids. The composition and content of the chemical components have some changes before and after processing. The addition of processing excipients and hot water immersion are the main reasons for the difference, which can provide experimental basis for interpretation of the processing mechanism of this characteristic processed products of Euodiae Fructus.
8.Research progress on the relationship between dietary patterns and metabolic-associated fatty liver disease.
Bing Qian ZHOU ; Qing Nan HE ; Chun Xiang QIN ; Jing LU ; Xiao Ni CHAI ; Jing Chi ZHU ; Ni GONG
Chinese Journal of Hepatology 2022;30(9):1012-1016
Globally, metabolic-asssociated fatty liver disease has become a significant health burden due to its complex pathogenesis, and there are no specific and effective therapeutic drugs to date. The onset and progression of metabolic-asssociated fatty liver disease is closely associated with improper dietary habits. The cornerstone to treat metabolic-asssociated fatty liver disease is weight loss through a well-balanced diet. This article summarizes and discusses the research progress at home and abroad in relationship to metabolic-asssociated fatty liver disease and dietary patterns such as the Mediterranean diet, the DASH diet, an energy-restricted balanced diet, a low fat diet, a low carbohydrate diet, a western diet, an animal food diet, a traditional diet, and others. In addition, it categorizes the effects of various dietary patterns on the prevention, treatment, or induction of several issues that need further metabolic-asssociated fatty liver disease research for subsequent reference.
Animals
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Non-alcoholic Fatty Liver Disease/etiology*
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Diet, Fat-Restricted
;
Weight Loss
;
Diet, Mediterranean
;
Liver
9.Retrospective analysis of short-term curative effect of total laparoscopic loop ileostomy reversal after radical resection of rectal cancer.
Shou LUO ; Hao SU ; Zheng XU ; Jin Tao ZHOU ; Yun Bin MA ; Huai Gang CHEN ; Ming LIU ; Li Biao GONG ; Fu YANG ; Xue Dui WU ; Ming YUAN ; Ming Guang ZHANG ; Jina Wei LIANG ; Qian LIU ; Zhi Xiang ZHOU ; Xi Shan WANG ; Hai Tao ZHOU
Chinese Journal of Oncology 2022;44(12):1385-1390
Objective: To investigate the safety, feasibility and short-term efficacy of total laparoscopic loop ileostomy reversal in patients after resection of rectal cancer. Methods: The clinical data of 20 patients who underwent total laparoscopic loop ileoscopic loop ileostomy after radical resection of rectal cancer at Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, or Beijing Chaoyang District Sanhuan Cancer Hospital from October 2019 to June 2020 were collected and retrospectively analyzed. Results: All patients had successfully underwent total laparoscopic ileostomy reversal without conversion to open surgery or discontinued operation. No perioperative related death cases were found. In the whole group, the median operation time was 97 (60-145) minutes and the median intraoperative blood loss was 20 (10-100) milliliters. The median Visual Analogue Scale (VAS) score was 1.9 (1-5) one day after the operation. Nobody needed to use additional analgesic drugs. The median time to grand activities was 25 (16-42) hours, the median time to flatus was 44 (19-51) hours, and the median hospitalization after operation was 6.9 (5-9) days. No patients underwent operation related complications such as operative incision infection, abdominal and pelvic infection, intestinal obstruction, anastomotic leakage, bleeding and so on. Conclusions: Total laparoscopic loop ileostomy reversal appears to be safe, feasible and with promising efficacy for selected patients.
Humans
;
Ileostomy
;
Retrospective Studies
;
Laparoscopy
;
Rectal Neoplasms/surgery*
;
Anastomotic Leak
;
Anastomosis, Surgical
10.Analysis of Terpenoids in Alismatis Rhizoma Before and After Processing with Salt-water Based on UPLC-Q-TOF-MS
Qian XIANG ; Wenyan ZHAO ; Chan WANG ; Xiaoying WU ; Yinghui ZHU ; Danyang YANG ; Xiaolin XIAO ; Qianfeng GONG ; Huan YU
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(19):154-161
ObjectiveTo identify the chemical constituents of Alismatis Rhizoma before and after processing with salt-water by ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF-MS), and to investigate the changes of terpenoids in Alismatis Rhizoma before and after processing with salt-water. MethodUPLC-Q-TOF-MS was used to detect with 0.1% formic acid aqueous solution (A)-acetonitrile (B)as mobile phase for gradient elution (0-0.01 min, 20%B; 0.01-5 min, 20%-40%B; 5-40 min, 40%-95%B; 40-42 min, 95%B; 42-42.1 min, 95%-20%B; 42.1-45 min, 20%B), electrospray ionization (ESI) was selected for collection and detection in positive ion mode with the scanning range of m/z 100-1 250 and ion source temperature at 500 ℃. The data were analyzed by PeakView 1.2.0.3, the components were identified according to the primary and secondary MS data, and combined with the reference substance and literature. After normalized treatment by MarkerView 1.2.1, the MS data were analyzed by principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA), and then the differential components before and after processing were screened. The content changes of differential components were analyzed according to the relative peak area. ResultA total of 30 components were identified under positive ion mode, including 28 prototerpene triterpenes and 2 sesquiterpenes. The results of PCA and OPLS-DA showed that there were significant differences in components from Alismatis Rhizoma before and after processing with salt-water, and 10 differential components (alisol B 23-acetate, alisol I, alismol, 11-deoxy-alisol B 23-acetate, alisol B, alisol C, 11-deoxy-alisol B, alisol G, 11-deoxy-alisol C and alisol A) were screened, and the contents of alisol G and alisol A decreased significantly after processing. ConclusionUPLC-Q-TOF-MS can comprehensively and accurately identify the chemical constituents in raw and salt-processed products of Alismatis Rhizoma. It takes a great difference in the contents of chemical constituents before and after processing, and the difference of substituents is the main reason for this differences, which can provide reference for determining the material basis of efficacy changes of Alismatis Rhizoma before and after processing with salt-water.

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