1.Mechanism of Alzheimer's Disease Based on Correlations between Aquaporins and Aromatic Chinese Medicines
Senlin CHEN ; Sai'e HUANG ; Zhichen WANG ; Yan LI ; Shixiang KUANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(17):227-238
Alzheimer's disease (AD) is an age-related neurodegenerative disease that belongs to the category of dementia in traditional Chinese medicine (TCM). According to the TCM theory, phlegm, dampness, stasis, and toxin are the major factors inducing the occurrence and development of AD. The application of aromatic Chinese medicines to remove the combined phlegm, dampness, stasis, and toxin is an important TCM method for treating AD. Aquaporins (AQPs) are involved in the water metabolism of the central nervous system (CNS), playing a role in the water balance of CNS. Therefore, AQPs are deeply involved in the occurrence and development of AD. AQPs may be the key targets of a variety of aromatic Chinese medicines. From the intrinsic relationship between AQPs and AD-inducing factors (phlegm, dampness, stasis, and toxin), this study explores the modern medical connotation of treating AD with aromatic Chinese medicines, aiming to provide ideas for the prevention and treatment of AD with TCM.
2.Lamin B2 promotes migration of retroperitoneal liposarcoma cells by regulating AKT signaling pathway
Shixiang MA ; Mengmeng XIAO ; Xiangji LI ; Chenghua LUO
Chinese Journal of General Surgery 2024;39(1):51-55
Objective:To investigate the effect of Lamins B2 (LMNB2) on the migration of human retroperitoneal liposarcoma (RPLS) cells SW872.Methods:Immunohistochemistry was used to analyze the the differential expression levels of LMNB2 in 33 RPLS tissue samples . The correlation between LMNB2 expression and clinical prognosis and clinicopathological features was analyzed. siRNA was used to lower the expression level of LMNB2 in tumor cells, and the effect of LMNB2 on the scratch healing ability and migration ability of SW872 cells was examined by using wound-healing assay and transwell migration assay. The expression levels of p-AKT and AKT in each group cells were detected by Western blot.Results:Patients with high LMNB2 expression had a lower recurrence-free survival and overall survival compared to those with low LMNB2 expression, and were more likely to experience recurrence, ( χ2=4.872, P=0.027; χ2=4.180, P=0.041; χ2=7.127, P=0.008). The migration ability of cells was significantly reduced following the silencing of LMNB2 expression ( t=11.240, P<0.01; t=7.445, P<0.01). The expression level of p-AKT in the silencing group was significantly lower than that in the control group, while there was no significant difference in the expression level of AKT between the two groups ( t=9.784, P<0.01). Conclusion:LMNB2 may promote the migration of human retroperitoneal liposarcoma cells SW872 by regulating AKT signaling pathway.
3.The mechanism of miR-10b targeting TGFBR1/SMAD3 pathway on chondrocyte proliferation and hypertrophy in idiopathic short stature
Na HU ; Zhengyu LI ; Chunfeng YE ; Ying WU ; Qing YAO ; Shixiang HUANG ; Wen LI ; Haiqin ZHU
Tianjin Medical Journal 2024;52(2):124-128
Objective To investigate the effect and mechanism of microRNA-10b(miR-10b)on idiopathic short stature(ISS).Methods A total of 54 children with ISS and 54 healthy children were collected.The serum expression of miR-10b was detected by RT-qPCR,and the relationship between serum miR-10b expression and clinical data of children with ISS was analyzed.miR-10b inhibitor,si-TGFBR1 and their negative control transfection C28/I2 cells were used.CCK-8 experimental detection was used to detect C28/I2 cell proliferation.Western blot assay was used to detect gnome related transcription factor 2(RUNX2),collagen type X alpha 1 chain(COL10A1),transforming growth factor beta receptor 1(TGFBR1),SMAD3 and pSMAD3 protein expression.The target of miR-10b was screened in StarBase database,and the targeting relationship between miR-10b and TGFBR1 was verified by dual luciferase reporter gene assay.Results The serum expression of miR-10b was higher in the ISS group than that of the healthy control group,and the higher the miR-10b expression,the more obvious the decrease of child height,IGF-1 and alkaline phosphatase(P<0.05).Compared with the NC group,the cell proliferation ability and RUNX2,COL10A1,TGFBR1,and pSMAD3 protein expression were up-regulated in the miR-10b inhibitor group(P<0.05).StarBase database suggested that miR-10b had a binding site of TGFBR1,and dual luciferase reporter gene assay confirmed that TGFBR1 interacted with miR-10b(P<0.05).Compared with the si-NC group,the expression of TGFBR1 was down-regulated and the cell proliferation ability was decreased in the si-TGFBR1 group(P<0.05).Conclusion miR-10b inhibits chondrocyte proliferation and hypertrophy in idiopathic short stature by targeting TGFBR1/SMAD3 pathway.
4.Bioinformatics analysis of HBV s gene mutation in blood donor
Jiacheng FAN ; Qing LI ; Xiuli CHEN ; Shixiang LIU ; Ye CHEN
Chinese Journal of Blood Transfusion 2024;37(8):933-939
Objective To analyze the infectious indicators,HBV s gene mutations and changes in bioinformatics char-acteristics of HBV DNA+/HBsAg-blood donor.Methods A sample of HBV DNA+/HBsAg-was screened by PCR meth-od,and HBsAg/HBsAb/HBeAg/HBeAb/HBcAb of HBV in the sample were detected by ELISA and chemiluminescence methods.The mutation of the HBVs gene fragment in the sample was sequenced and analyzed,and the bioinformatics analy-sis was performed using analysis software.Results The sample showed HBV DNA+,HBsAg-,HBsAb+,HBeAg+,HBe-Ab-and HBcAb+,with an amino acid unit point mutation(P151L)occurred in the HBV s gene,and the spatial structure changed.Conclusion The spatial structural changes in the gene sequence of HBVs may be the reason for the appearance of serological HBsAg-/HBsAb+/HBV DNA+in the test results.
5.Mendelian randomization analysis of the causal association between bronchial asthma and bone mineral density
Lianlian LIU ; Huiyong YU ; Lei LI ; Yufei GUO ; Tianyang NIE ; Tian MAN ; Shixiang WEI ; Chuxi XIE ; Tianyun CHEN ; Chengxiang WANG
Journal of Clinical Medicine in Practice 2024;28(14):24-29
Objective To investigate the causal association between bronchial asthma and bone mineral density at different sites using a two-sample Mendelian randomization (MR) approach. Methods Summary data for exposure factors and outcome were obtained from different genome-wide association studies.Single nucleotide polymorphisms strongly associated with bronchial asthma were selected as instrumental variables,and those in linkage disequilibrium were excluded.The inverse-variance weighted (IVW) method was used as the primary method for MR analysis,complemented by weighted median,simple mode,weighted mode,and MR-Egger regression methods.Sensitivity analyses were conducted to assess the stability of the results. Results The random-effects model of IVW analysis showed that heel bone mineral density (OR=0.986;95% CI,0.974 to 0.998;
6.Establishment of zebrafish calculation model and calculation of relative dose coefficients
Huiyuan XUE ; Shixiang ZHANG ; Kun LIU ; Yefeng ZHANG ; Shengri LI ; Jun WAN ; Fengmei CUI ; Yu TU ; Liang SUN
Chinese Journal of Radiological Medicine and Protection 2021;41(5):374-379
Objective:To assess impact of radiation from nuclear power on the surrounding environment, a dose assessment model was constructed and relevant dose coefficients were determined through refined animal models.Methods:Zebrafish is one of the most important aquatic model animals in the radiation hazard assessment of nuclear power liquid effluent. A geometric model of zebrafish containing internal bones and visceral organ was established for dose estimation. The internal and external dose coefficients (DC) of the zebrafish model were calculated by Monte Carlo method with seven nuclides as the source term, 3H, 40K, 58Co, 60Co, 110Ag, 134Cs, 137Cs, which are common in nuclear liquid effluents and environmental monitoring. Results:The level of nuclide gamma energy determines dose coefficients for external radiation. The dose coefficients of most nuclides in internal organs was higher than that in whole body, and the internal organ dose of 58Co was 165% higher than that in whole body. The internal radiation dose coefficients of the model established in this study was relatively high, and the internal radiation dose coefficients caused by 60Co was 2.6 times of existing ellipsoid model, which suggested that the different internal materials and the choice of different particle types would affect the energy deposition. Conclusions:Refining of model animals is important. Accurate assessment of the organs dose coefficients of model animals is helpful to assess the radiation effects on non-human species.
7. Neuroprotective effects of Ghrelin on traumatic brain injury in mice
Xuefei SHAO ; Lei ZHU ; Tailong YI ; Bo LI ; Shixiang CHENG
Chinese Journal of Behavioral Medicine and Brain Science 2019;28(11):978-982
Objective:
To investigate the neuroprotective effect of Ghrelin on traumatic brain injury (TBI) in mice.
Methods:
TBI model of C57BL / 6 mice was established by electronic cortical impact instrument (eCCI). According to the random figure table method, twenty-four mice were randomly divided into sham group(Sham group), TBI group and Ghrelin intervention group(Ghrelin group) with 8 mice in each group. The model of TBI was established in TBI group and Ghrelin group.The mice in Ghrelin group was injected intraperitoneally 0.5 g/kg before and 1 h after injury respectively. And the mice Sham group and TBI group were injected with the same amount of normal saline. The changes of cerebral blood perfusion (CBP) were monitored in real time by laser speckle contrast analysis(LSCI), the changes of neuroelectrophysiology were observed by monitoring motor evoked potential (MEP), and the status of neurological deficit was evaluated by modified neurological deficit score (mNSS).
Results:
Compared with Sham group, the mice in TBI group had significantly lower cerebral blood perfusion(CBP) (
8.Expert consensus on application of Chinese patent medicine for acute upper respiratory tract infection
Bangjiang FANG ; Yinglin CUI ; Zhijun LI ; Yinping LI ; Xuezhong YU ; Shixiang HU ; Gang WANG ; Qinglin RUI
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2019;26(2):129-138
Expert Consensus on the Application of Chinese Patent Medicine for Acute Upper Respiratory Tract Infection was established under the joint sponsorship of Specialty Committee of Emergency of World Federation of Chinese Medicine Societies, Emergency Physician Branch of Chinese Medical Doctor Association, Emergency Medicine Professional Committee of Chinese Association of Integrative Medicine and Chinese Emergency Medical Parternerships. In the consensus, the Chinese patent medicines for treatment of acute upper respiratory tract infection (AURI) were summarized and analyzed, and after the expert writers had discussed the contents of the consensus together, they decided to formulate the experts' consensus related to the AURI, expecting to provide a reference to the clinical treatment of this disease.
9.Cortactin antibody in myasthenia gravis and its clinical significance
Meiqiu CHEN ; Lan CHU ; Yifan ZHANG ; Shixiang KUANG ; Dian HE ; Cong XIA ; Yuan LI ; Qingfang ZHANG ; Ting LUO
Chinese Journal of Neurology 2018;51(6):438-443
Objective To investigate the clinical significance of cortactin antibody in myasthenia gravis (MG).Methods Cortactin antibody in the serum of 100 MG patients, 40 normal controls and 40 other neuroimmune diseases patients was examined by Western blotting and ELISA using purified recombinant human protein cortactin as antigen .Acetylcholine receptor antibody ( AchR-ab ) and muscle specific kinase antibody (MuSK-ab) were parallely measured by ELISA.Results Antibodies to cortactin were found in nine (9%) serum samples of 100 MG patients.Four of the nine cortactin antibody positive sera were also positive for AChR-ab.The rest five MG patients only had antibodies against cortactin ( no detectable AChR-ab or MuSK-ab).None of the control subjects (including 40 normal controls and 40 other neuroimmune diseases patients ) had cortactin antibodies.Most (7/9) of the cortactin antibody positive MG patients presented with early-onset subgroup.Patients only with cortactin antibodies did not appear to have thymoma.Patients with MG who had both AChR and cortactin antibodies showed maximum involvement of muscles and severe Osserman's classification ( three cases of type ⅡB and one case of type Ⅳ) . Conclusion Cortactin antibody may be a new antibody for MG , which can provide clues for further exploring the potential pathogenic mechanisms of the disease .
10.The matching analysis of the tibial osteotomy and the imported prosthesis components of the Han and Uygur populations
Bo ZHANG ; Kemin LIU ; Tiebing QU ; Jiang PAN ; Yuan LIN ; Zhiwei WANG ; Shixiang REN ; Liang WEN ; Tong CHEN ; Jun LI ; Lei ZHOU ; Desi MA
Chinese Journal of Orthopaedics 2018;38(7):433-441
Objective To compare the anatomical differences of tibia osteotomy between Han and Uygur populations and to analysis their compatibility with imported prosthesis component.Methods Two hundred patients (400 knees) were selected from the outpatients and healthy volunteers of the non-knee joint disease from September 1,2012 to December 1,2014,with 86 men (172 knees) and 114 women (228 knees).The average age is 44.64-10.8 years (range 21-68 years old).According to the populations,the subjects were divided into Han group and Uygur group.Furthermore,each group was divided into male subgroup and female subgroup.A full-length CT scan of the lower limb was conducted to reconstruct the knee joint in the workstation.The tibial osteotomy was simulated in total knee arthroplasty.The transverse diameter of the tibial cross section,the longitudinal depth of the medial platform and the depth of the lateral platform were measured.The front and back diameter and aspect ratio of the osteotomy were calculated.There parameters were compared between the Han and Uygur groups.Five mm tolerance range method was used to analysis the cover rate of the following three kinds of commercially imported prosthesis,namely Depuy,Link and Zimmer.Results The mean value of the tibial cross section were 72.3±4.3 mm,50.7±3.1 mm,47.8±3.0 mm,49.3±2.9 mm and 0.682±0.021 in Han group,while those were 74.5±4.8 mm,51.4±3.0 mm,48.6±2.8 mm,50.0±2.9 mm and 0.672±0.020 in Uygur group,respectively.Except the aspect ratio,the average value of each parameter in Uygur group was greater than that in the Han group with statistically significant differences between the two populations.The cover rate of the three kinds of prosthesis tibial component were 53.0%,37.0% and 40.0% for Han group,but 61.0%,43.0% and 42.5% for Uygur group.Depuy prosthesis was fit for the Uygur population better.Conclusion The geometry and anatomy of proximal tibia in Chinese showed significant difference between Han and Uygur populations.The mean covering rates of the imported tibial components were low in the dimensions of the resected surface.We can improve the prosthesis and the matching degree by adjusting the parameters or increasing the model set.


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