Application value of domestic robotic surgical system in radical resection of hilar cholangio-carcinoma / 中华消化外科杂志

Objective:To investigate the application value of domestic robotic surgical system in radical resection of hilar cholangiocarcinoma (hCCA).Methods:The retrospective and descriptive study was constructed. The clinicopathological data of a 66-year-old male patient with hCCA who was admitted to the Second Hospital of Shandong University in November 2022 were collected. Radical resection of hCCA was performed using the Toumai? laparoscopic surgical robot system. Observation indicators: (1) intraoperative conditions; (2) postoperative conditions; (3) follow-up. Count data were represented as absolute numbers and (or) percentages.Results:(1) Intraoperative conditions. The patient underwent radical resection of hCCA successfully using robotic surgical system, including tumor resection, lymph node dissection, and gastrointestinal reconstruc-tion. The operation time and volume of intraoperative blood loss were 400 minutes and 100 mL, respectively, and no intraoperative blood transfusion was required. (2) Postoperative conditions. The patient began ambulation on postoperative day 1 and began taking liquid food on postoperative day 4. Liver function examination and abdominal computed tomograph (CT) on postoperative day 5 showed a decrease in serum bilirubin, no biliary or intestinal leakage, and no edema or necrosis at the anastomotic site. The abdominal pre-anastomotic and post-anastomotic drainage tubes were removed on the 7th and 9th day after the surgery respectively, and the patient was discharged on the 10th day after surgery. Results of postoperative pathological examination showed moderately to poorly differentiated adenocarcinoma of the bile duct. Immunostaining was positive for CK7 and CK19. The Ki-67 proliferation index was 35%. The proximal and distal resection margin of bile duct were negative. The tumor diameter was 30 mm. Perineural invasion was positive. The surgical specimen margin was negative. Two lymph nodes were identified containing tumor cells positive for malignancy. No tumor cell metastasis was detected in the No.8, No.12 or gastric lesser curvature lymph nodes submitted for pathological examination. (3) Follow-up. The patient was followed up at postoperative 1-, 3-, 5-month after discharge. During follow-up period, results of liver function examination and abdominal CT showed liver function restore to normal levels, no complication such as biliary fistula, intestinal fistula, gastroparesis or tumor metastasis.Conclusion:The Domestic Toumai ? laparoscopic surgical robot system can be applied to radical resection of hCCA.

Surveillance results of iodine deficiency disorders in key populations in Ganzhou City, Jiangxi Province from 2018 to 2022 / 中华地方病学杂志

Objective:To investigate the status of iodine deficiency disorders in children and pregnant women in Ganzhou City, Jiangxi Province, and to provide a basis for scientific iodine supplementation and adjustment of prevention and control strategies.Methods:According to the requirements of the National Iodine Deficiency Disorders Surveillance Program (2016 Edition), iodine deficiency disorders surveillance was carried out in 18 counties (cities, districts) under the jurisdiction of Ganzhou City from 2018 to 2022. Edible salt and urine samples taken from children aged 8 to 10 and pregnant women were collected to detect salt and urine iodine levels. At the same time, B-ultrasound method was adopted to measure children's thyroid volume, and the goiter rate was calculated.Results:From 2018 to 2022, a total of 27 075 edible salt samples were collected from key populations (children aged 8 - 10 and pregnant women), with a median salt iodine of 25.00 mg/kg and a qualified iodized salt consumption rate of 96.24% (26 057/27 075). The difference in the qualified iodized salt consumption rate among key populations in different years was statistically significant (χ 2 = 29.09, P < 0.001). A total of 18 061 urine samples were collected from children, with a median urine iodine of 192.10 μg/L, there was a statistically significant difference in the urine iodine level of children between different years ( H = 82.59, P < 0.001). A total of 9 014 urine samples were collected from pregnant women, with a median urine iodine of 177.20 μg/L, there was a statistically significant difference in urine iodine level of pregnant women between different years ( H = 78.78, P < 0.001). A total of 8 621 children's thyroid glands were examined, including 34 cases of goiter, with a goiter rate of 0.39%, and the goiter rate showed a decreasing trend year by year (χ 2trend = 11.09, P < 0.001). Conclusions:From 2018 to 2022, the iodine nutrition of children and pregnant women in Ganzhou City is at an appropriate level, the consumption rate of qualified iodized salt (> 90%) and the children's goiter rate (< 5%) met the national iodine deficiency disorders elimination standards. Ganzhou City continues to maintain the status of eliminating iodine deficiency disorders.

Clinical efficacy of atezolizumab plus bevacizumab combined with local therapy for the treat-ment of recurrent hepatocellular carcinoma before liver transplantation / 中华消化外科杂志

Downstaging treatment by local therapy combined with systemic therapy before liver transplantation for patients with recurrent hepatocellular carcinoma (HCC) can control tumor progression and reduce tumor burden, which resulting in reducing the push-out rate of patients during the waiting period for liver transplantation, providing an oncological observation window, enabling patients of beyond Milan criteria downstaged with better survival benefit. The authors introduce the clinical experience of a case with recurrent HCC of beyond Milan criteria who under-went liver transplantation after receiving atezolizumab plus bevacizumab combined with local therapy. Results show the patient achieving pathological complete remission without postoperative rejection and obtaining a good prognosis with life status improved.

Biomechanical Analysis of the Knee after Unicompartmental Knee Arthroplasty during Stair Ascent / 医用生物力学

Objective To investigate the effect of medial unicompartmental knee arthroplasty (UKA) surgery on knee biomechanics during stair ascent. Methods Nine osteoarthritis patients who received fixed-bearing medial UKA participated in this study. All patients completed pre-surgical (3 weeks before UKA surgery) and post-surgical ［(7±2) months after UKA surgery］ test. Their synchronized biplane radiographs during stair ascent were collected. Motion of the femur, tibia, and implants were tracked using an automated volumetric model-based tracking process that matched subject-specific 3D models of the bones and prostheses to the biplane radiographs with sub-millimeter accuracy. Anatomic coordinate systems were created within the femur and tibia and used to calculate tibiofemoral kinematics. Additional outcome measures included the center of contact in the medial and lateral compartments, and the lateral compartment dynamic joint space. Results The UKA knee was in 4.8° varus compared with the pre-surgical contralateral knee. The post-surgical UKA knee was in 3.1°valgus compared with the pre-surgical knee. The post-surgical UKA knee was 4.4° externally rotated compared with the pre-surgical contralateral knee. However, the medial tibia contact center of the UKA knee moved posteriorly 2.5 mm compared with that of the contralateral knee (P0.05). Conclusions UKA can effectively improve varus of the knee joint and restore biomechanical characteristics of UKA knee rotation, without affecting lateral compartment joint space. However, changes are found in contact center of the medial tibia compartment of the UKA knee after surgery.

Prevalence and factors associated with HIV testing uptake among sexual active college students in Zhuhai City / 中国学校卫生

Objective@#To understand the prevalence of HIV (human immunodeficiency virus) testing and associated factors among sexual active college students in Zhuhai City.@*Methods@#From November to December, 2019, an anonymous electronic questionnaire was administered among 12 235 students in six colleges and universities in Zhuhai City by multistage sampling. A total of 1 789 college students ever had sex were selected. Pearsons Chisquare test and nonconditional Logistic regression model were applied to analyze the factors associated with uptake of HIV testing.@*Results@#Among these students ever had sex, 7.55% (135/1 789) had been tested for HIV mainly through hospitals (71.85%). The main reasons for testing were regular testing (50.37%) and intending to know their infection status (23.70%). Multivariable Logistic regression showed that homosexual individuals (OR=4.62, 95%CI=1.07-19.95) and those who had heterosexual commercial sex in the past year (OR=3.77, 95%CI=1.96-7.26) were more likely to test for HIV, while female (OR=0.41, 95%CI=0.24-0.69) were less likely to test for HIV.@*Conclusion@#The proportion of HIV testing was low among sexual active college students in Zhuhai City. Interventions should be tailored including strengthening the HIV testing propaganda education and enhancing students awareness of HIV testing, and the influencing factors such as gender, sexual orientation and commercial sexual behavior should be taken into consideration, so as to improve the HIV testing coverage of this population.

Comparative study of laparoscopic surgery and open surgery in the treatment of intrahepatic cholangiocarcinoma / 中华肝胆外科杂志

Objective:To compare the differences of short and long-term outcomes between laparoscopic surgery and open surgery treatment of intrahepatic cholangiocarcinoma patients.Methods:A retrospective cohort study was conducted to collect the clinical data of 118 patients with intrahepatic cholangiocarcinoma who underwent surgery in Qilu Hospital of Shandong University from January 2015 to June 2020. They were divided into laparoscopy group and open group according to the operation methods. The perioperative data, such as intraoperative surgical conditions, hospital costs, postoperative complications, postoperative blood biochemical tests, and the follow-up data of the two groups were compared.Results:In the laparoscopic group, there were 40 patients, 18 males and 22 females, aged (61.5±9.1) years. There were 78 patients in the open group, 48 males and 30 females, aged (61.2±8.3) years. The tumor size of the laparoscopic group was (4.4±1.8) cm, which was smaller than that of the open group (6.0±3.3) cm, and the differences were statistically significant ( P<0.05). In the laparoscopic group, 4 cases (10%) were converted to open surgery. The intraoperative blood loss, intraoperative blood transfusion proportion, 3 or more liver segments resection proportion and hospital costs of laparoscopic group were lower than those of open group [200.0(100.0, 261.8) ml vs. 300.0(100.0, 400.0) ml, 5.0%(2/40) vs. 26.9%(21/78), 37.5%(15/40) vs. 66.7%(52/78), (6.2±2.0) wan yuan vs. (7.2±2.3) wan yuan], the differences were statistically significant (all P<0.05). There were no significant differences in the incidence of postoperative complications between the two groups ( P>0.05). On the first post-operative day, ALT serum level and the third post-operative day TBil serum level in the laparoscopic group were lower than those in the open group [188.5(130.5, 274.0) U/L vs. 320.0(144.0, 427.0) U/L, 26.4(18.3, 26.4) μmol/L vs. 31.6(18.8, 37.5) μmol/l], the differences were statistically significant ( P<0.05). There were no significant differences in 1-year and 2-year overall survival rate and disease-free survival rate between the two groups ( P>0.05). Conclusion:Compared with open surgery, laparoscopic surgery in the treatment of intrahepatic cholangiocarcinoma has better short-term outcomes, and can achieve similar results in medium- or long-term outcomes.

Effect of Comprehensive Treatments on Autism Spectrum Disorder / 中国康复理论与实践

Objective:To observe the effect of comprehensive treatments on autism spectrum disorders (ASD). Methods:From October, 2017 to October, 2019, 60 children with ASD were divided into control group (n = 30) and treatment group (n = 30) randomly. The control group received rehabilitation training and special education, while the treatment group received acupuncture, massage and Chinese Medicine, in addition, for twelve weeks. The scores of Austin Behavior Checklist (ABC) and Autism Treatment Evaluation Checklist (ATEC) were compared before and after treatment. Results:Before treatment, there was no significant difference in the scores of ABC and ATEC between two groups (t < 1.426, P > 0.05). After treatment, the scores of ABC and ATEC significantly decreased in both groups (t > 5.46, P < 0.001), and were better in the treatment group than in the control group (|t| > 3.304, P < 0.01). Conclusion:Traditional Chinese Medicine combined with rehabilitation training and special education is effective on ASD, which is superior to rehabilitation training and special education.

Quality Evaluation of Tremella fuciformis Polysaccharides from Different Sources / 中国实验方剂学杂志

Objective:To establish a method for the determination of polysaccharide and monosaccharide composition of Tremella fuciformis, and to analyze the difference of polysaccharide content in T. fuciformis from different sources and cultivation methods, so as to provide reference for the quality determination.Method:High performance size exclusion chromatography coupled with multi-angle laser light scattering and refractive index detection (HPSEC-MALLS-RID) was employed to determine the content and relative molecular weight distribution of T. fuciformis polysaccharides. The monosaccharide types and proportions of T. fuciformis polysaccharides were analyzed by 1-phenyl-3-methyl-5-pyrazolone (PMP) precolumn derivative high performance liquid chromatography (HPLC).Result:The weight-average relative molecular weight (Mw) and the content of polysaccharides in T. fuciformis cultivated by cut-log from different sources were distributed in 2.618×106-3.503×106 Da and 307.12-609.06 g·kg-1, respectively. These two parameters of polysaccharides in T. fuciformis with substitute cultivation from different sources were 2.723×106-3.886×106 Da and 366.38-647.37 g·kg-1, respectively. The T. fuciformis polysaccharides mainly consisted of mannose, glucuronic acid, glucose, galactose, xylose and fucose, their ratios in samples with cut-log and substitute cultivation were 4.4∶0.7∶1.0∶0.2∶1.4∶1.6 and 4.4∶0.8∶1.0∶0.1∶1.5∶1.5, respectively. The contents of the above six monosaccharides in 39 batches of T. fuciformis from different sources were mannose of 36.71-191.31 g·kg-1, glucose of 10.46-76.10 g·kg-1, galactose of 1.00-6.72 g·kg-1, xylose of 16.73-70.54 g·kg-1, glucuronic acid of 9.74-32.12 g·kg-1, fucose of 17.16-68.20 g·kg-1.Conclusion:The content of polysaccharides in T. fuciformis from different sources has a certain difference, the developed method can be used as a routine method for the quality evaluation of polysaccharides in T. fuciformis.

Risk Factors of Acute Kidney Injury Complicating Adult Primary Nephrotic Syndrome / 中国医学科学院学报

To explore the risk factors of acute kidney injury(AKI)in adult primary nephrotic syndrome(PNS). Totally 185 patients with PNS were divided into AKI group(=51)and non-AKI group(=134).The demographic data and clinical and histological features at admission were compared between the two groups.The independent risk factors for AKI were evaluated by Logistics regression analysis. In 51 PNS patients with AKI,the common pathological types of AKI included minor glomerular abnormalities(29.4%),IgA nephropathy(25.5%),and membranous nephropathy(17.6%).The incidences of renal tubular casts and epithelial vacuoles in the AKI group were significantly higher than those in the non-AKI group(=0.004,=0.030).Males were more likely to suffer from AKI than females(=0.000).Patients in AKI group had significantly lower albumin level(=0.015)and higher levels of random urine protein,serum creatinine,uric acid,urea nitrogen,and triglyceride than non-AKI group(=0.030,=0.000,=0.000,=0.000,and =0.006),and polyserous and oliguria occurred more often in the AKI group(=0.000,=0.002).The AKI group had significantly higher incidences of high blood pressure and infections(=0.035,=0.000).Multivariate logistics regression analysis showed albumin(96 μmol/L),urea nitrogen(≥6.8 mmol/L),uric acid(≥400 μmol/L),diabetes,infection,and renal tubular casts were the independent risk factors for AKI. AKI complicating PNS is associated with a variety of factors.Its independent risk factors include the levles of albumin,serum creatinine,urea nitrogen,and uric acid,diabetes,infections,and renal tubular casts.

Evaluation of key production processes of Chan Taoren formula granules based on characteristic chromatogram and D-amygdalin transfer rate / 中国中药杂志

This study aimed to establish characteristic chromatogram and content determination method for Chan Taoren formula granules,evaluate the production processes of Chan Taoren formula granules based on the correlation of characteristic chromatogram and the transfer rate of D-amygdalin,and clarify the key control points. The optimized analytical method was carried out on a Waters CORTECS C18 column(4. 6 mm×150 mm,2. 7 μm) with acetonitrile-0. 1% phosphoric acid aqueous solution as the mobile phase at a flow rate of 0. 6 m L·min-1. The detection wavelength was 207 nm,and the column temperature was 20 ℃ ． As compared with the standard decoction of Chan Taoren,there were five characteristic peaks in the decoction pieces,extracts,concentrates,spray-dried powders and formula granules,basically consistent in relative retention time and peak pattern; in addition,the transfer rate of D-amygdalin from Chan Taoren pieces to the formula granules was within the transfer rate range of standard decoction. The average transfer rate of D-amygdalin was 56.65%,72.85%,94.58% and 99.29% respectively in the extraction,concentration,spray drying and granulation processes. Therefore,the factors affecting D-amygdalin in the extraction process were further studied. The results showed that D-amygdalin was easily converted to L-amygdalin in the water extraction process,leading to a low transfer rate of D-amygdalin in this process.D-amygdalin was unstable under alkaline conditions and prone to isomerization. Both liquid to solid ratio and extraction time had significant effects on the extraction rate of D-amygdalin. In this study,the key links in the production process of Chan Taoren formula granules was clarified based on the characteristic chromatogram and the quantity transmission of D-amygdalin,which provided a theoretical basis for production and quality control.

Research on quality standards of standard decoction of Fructus Corni piece / 中国中药杂志

This study aims to develop the quality standards of Fructus Corni piece standard decoction. Morroniside and loganin were considered as index components. The content determination method of morroniside and loganin were developed. The fingerprint analysis method was also established. The standard decoctions of 15 batches of Fructus Corni pieces from Henan, Zhejiang, and Shaanxi were analyzed. The similarity values of fingerprint were all above 0.99. The transfer rates of morroniside were all higher than 100%. The quality evaluation indices of standard decoction were discussed. The transfer rate of an index component was not easy to be measured accurately and its concept was not rigorous. Therefore, index component yield was suggested as an evaluation index of standard decoction. Two methods for setting quality standards of standard decoctions, which were the ■ method and the ■ method, were compared. It was found that the standard range of ■ method was wider and more suitable for smaller sample size of standard decoction. The quality standards of Fructus Corni standard decoction were as follows, dry matter extraction ratio 37.48%-69.60%; morroniside yield 8.719-16.19 mg·g~(-1) piece; loganin yield 4.342-8.064 mg·g~(-1) piece.

Quality evaluation of Moutan Cortex Formula Granules / 中国中药杂志

A scientific and perfect quality evaluation system for Moutan Cortex Formula Granules was established,including content determination method,characteristic chromatogram method and mass spectrometry method. The content of paeoniflorin and paeonol in Moutan Cortex Formula Granules was determined by high performance liquid chromatography( HPLC),and the average content was 1. 72% and 1. 42%,respectively. The characteristic chromatogram was used to characterize Moutan Cortex Formula Granules,which contained 7 characteristic peaks,namely gallic acid,p-hydroxybenzoic acid,oxypaeoniflorin,paeoniflorin,tetragalloyl glucose,1,2,3,4,6-penta-O-galloyl-β-D-glucose and paeonol. A total of 40 compounds in Moutan Cortex Formula Granules,including gallic acids,paeoniflorins,paeonols,flavonoids and benzoic acids,were identified by mass spectrometry. In this study,a variety of analytical methods were used to evaluate the quality system of Moutan Cortex Formula Granules,which could play a positive role in improving the level of quality evaluation and process quality control.

Effect of Regulatory Network of Exosomes and microRNAs on Neurodegenerative Diseases / 中华医学杂志(英文版)

<p><b>Objective</b>A comprehensive review of the network regulation of exosomes and microRNAs (miRNAs) in neurodegenerative diseases was done, centering on the mechanism of the formation of exosomes and miRNAs and the sorting mechanism of exosomal miRNAs, with the aim to provide a theoretical basis in the search of biomarkers and the treatment of neurodegenerative diseases.</p><p><b>Data Sources</b>The comprehensive search used online literature databases including NCBI PubMed, Web of Science, Google Scholar, and Baidu Scholar.</p><p><b>Study Selection</b>The study selection was based on the following keywords: exosomes, miRNAs, central nervous system (CNS), and neurodegenerative diseases. The time limit for literature retrieval was from the year 2000 to 2018, with language restriction in English. Relevant articles were carefully reviewed, with no exclusions applied to study design and publication type.</p><p><b>Results</b>Exosomes are the smallest nanoscale membranous microvesicles secreted by cells and contain important miRNAs, among other rich contents. In the CNS, exosomes can transport amyloid β-protein, α-synuclein, Huntington-associated protein 1, and superoxide dismutase I to other cells. These events relieve the abnormal accumulation of proteins and aggravating neurological diseases. In some neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis, miRNAs are pathologically altered as an inexorable course, suggesting that miRNAs may contribute neurodegeneration. Exosomes and miRNAs form a network to regulate the homeostasis of the CNS, both synergistically and individually.</p><p><b>Conclusion</b>The network of exosomes and miRNAs that regulates CNS homeostasis is a promising biomarker for the diagnosis and treatment of neurodegenerative diseases.</p>

Clinical observation of modified Shenqi Decoction in the treatment for patients with early-to-middle stage nontraumatic osteonecrosis of femoral head / 中成药

AIM To investigate the clinical therapeutic effects of modified Shenqi Decoction in treating earlyto-middle stage nontraumatic osteonecrosis of femoral head (NONFH) due to kindey deficiency and blood stasis syndrome,and its impacts on serum TNF-α,CRP,NO,SOD as well.METHODS Totally,104 cases of eligible patients were randomly divided into traditional Chinese medicine (TCM) group,chemical medicine group and TCM combined with chemical medicine group,38 cases in each group,for a three-month course of treatment.The TCM group was dosed with modified Shenqi Decoction,the chemical medicine group with sodium alendronate,and the TCM combined with chemical medicine group with both modified Shenqi Decoction and sodium alendronate.The Harris SF-36,SF-36,FPS-R and TCM symptoms assessment were applied to estimating the efficacy of three groups before and after the treatment.So were the check of the serum TNF-α,CRP,NO,SOD levels,and rates of efficiency after treatments and six-month follow-ups,and incidence of adverse reactions during the treatment among all the three groups.RESULTS The efficiency rates were found to be in the following sequence:the chemical medicine group (76.5％) ＜ the TCM group (83.8％) ＜ the TCM combined with chemical medicine group (97.2％) (P ＜ 0.05).The TCM combined with chemical medicine group had its post-treatment scores of Harris SF-36,FPS-R,FPS-R,TCM symptom and the serum TNF-α,CRP,NO,SOD levels significantly improved as compared with other two groups (P ＜ 0.05).And the revealed incidence of adverse reactions was ranked as the TCM group (2.7％) ＜ the TCM combined with chemical group (30.6％) ＜ the chemical medicine group (70.6％) (P ＜ 0.05).CONCLUSION Modified Shenqi Decoction is superior to sodium alendronate in the treatment of NONFH due to kidney deficiency and blood stasis syndrome for its better performance in both the efficacy and the incidence of adverse reactions,and its synergistic effect with use of sodium alendronate may associate with its capability in offsetting the adverse reactions of sodium alendronate.

Effect of Sanbitang recipe in treatment of rheumatoid arthritis with kidney empty and cold-dampness symptom / 中国中药杂志

To explore the clinical effect of Sanbitang recipe in treatment for the rheumatoid arthritis (RA) with kidney empty and cold-dampness symptom and its safety. A total 168 cases eligible patients were randomly divided into the traditional Chinese medicine (TCM) group, the chemical medicine group and the TCM combined with chemical medicine group, with 56 cases in each group. The TCM group was treated with Sanbitang recipe; The chemical medicine group was given methotrexate tablets; And Sanbitang recipe and methotrexate tablets was adopted in the TCM combined with chemical medicine group. A course of treatment was 16 weeks. Health assessment questionnaire (HAQ), disease activity scores 28-joint counts (DAS28), visual analogue scale (VAS), TCM symptom, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), cyclic citrullinated peptides (CCP) and rheumatoid factor (RF) were detected. The efficiencies and incidence of adverse reactions in the three groups were compared. The total effective rate of the TCM combined with chemical medicine group was 92.7%, which was higher than 79.2% of the TCM group and 82.4% of the chemical medicine group (P<0.05). There was no statistically significant difference between the TCM group and the chemical medicine group. This suggested that Sanbitang recipe was effective in treating rheumatoid arthritis (RA) with kidney empty and cold-dampness symptom. After treatment, the scores of HAQ, DAS28, VAS, ESR, CRP, CCP and RF of the TCM combined with chemical medicine group were significantly higher (P<0.05) among the three groups. There was no statistically significant difference between the TCM group and the chemical medicine group. This indicated that Sanbitang recipe could effectively alleviate the clinical symptoms of rheumatoid arthritis (RA) with kidney empty and cold-dampness symptom. In terms of efficiency and incidence of adverse reactions, the order from low to high was that the TCM group (3.8%, 2/53)<the TCM combined with chemical medicine group (16.4%, 9/55)<the chemical medicine group (33.9%, 18/53) (P<0.05). Sanbitang recipe is effective in treating RA with kidney empty and cold-dampness symptom, with no obvious difference from methotrexate tablets and a low incidence of adverse reactions. Sanbitang recipe shows a remarkable effect in treating RA with kidney empty and cold-dampness symptom.

Preoperative application of combination of portal venous injection of donor spleen cells and intraperitoneal injection of rapamycin prolongs the survival of cardiac allografts in mice

OBJECTIVE@#To investigate the effects of preoperative portal venous injection of donor spleen cells (PVIDSC) and intraperitoneal injection of rapamycin in the acute rejection of cardiac allograft in mice and the underlying mechanisms.@*METHODS@#Homogenous female B6 mice and BALB/c mice were used as recipients and donors of heart transplantation. These mice were randomly divided into different groups and received PVIDSC alone, rapamycin alone, or PVIDSC and rapamycin combined therapy. In addition, the underlying mechanism was studied by measuring a number of cytokines.@*RESULTS@#Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin significantly prolonged the survival of heterotopic cardiac allograft in mice, but had no effects on the survival time of cardiac allografts in mice pre-sensitized by skin grafting. Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin increased the expression of IL-10 and Foxp3 and reduced the expression of INF-. Short-term preoperative administration of rapamycin promotes the expression of CD4CD25Foxp3 regulator T cells. However, preoperative using alone of rapamycin, or combination of PVIDSC and rapamycin had no effects on the inhibition of proliferation of memory T cells.@*CONCLUSIONS@#Preoperative application of combination of PVIDSC and rapamycin significantly prolonged the survival time of cardiac allografts in mice but not in mice pre-sensitized by skin grafting. This may be explained by the fact that combination of PVIDSC and rapamycin inhibited the cellular immune response and induced the expression of IL-10 from Tr1 cells and CD4CD25FoxP3 regulatory T cells.

Preoperative application of combination of portal venous injection of donor spleen cells and intraperitoneal injection of rapamycin prolongs the survival of cardiac allografts in mice

Objective To investigate the effects of preoperative portal venous injection of donor spleen cells (PVIDSC) and intraperitoneal injection of rapamycin in the acute rejection of cardiac allograft in mice and the underlying mechanisms. Methods Homogenous female B6 mice and BALB/c mice were used as recipients and donors of heart transplantation. These mice were randomly divided into different groups and received PVIDSC alone, rapamycin alone, or PVIDSC and rapamycin combined therapy. In addition, the underlying mechanism was studied by measuring a number of cytokines. Results Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin significantly prolonged the survival of heterotopic cardiac allograft in mice, but had no effects on the survival time of cardiac allografts in mice pre-sensitized by skin grafting. Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin increased the expression of IL-10 and Foxp3 and reduced the expression of INF-. Short-term preoperative administration of rapamycin promotes the expression of CD4

Research progress of brain-computer interface technology for the rehabilitation of the upper limb motor function after stroke / 国际生物医学工程杂志

The upper limb dysfunction resulted from stroke has a high incidence and is hard to recover,seriously affecting the daily life and life quality of patients.The nerve tissue damage caused by stroke usually leads to the injuries of movement,sensory,cognitive and etc.The effective rehabilitation therapy can promote the rebuilding of the surviving cranial nerves to enhance the function and ability.As a modem intelligent nerve rehabilitation technology,brain-machine interface (BCI) directly builds the exchange channel between the brain and the surrounding environment.BCI extracts the brain's neural activity information,and transfers into the command to drive external equipment.BCI does not rely on the peripheral nerve system and muscle tissue.BCI technology is well suited for neurological rehabilitation training,because the repeated training associated with external equipments and BCI feedback can induce a normal exercise mode,indirectly induced the generation of normal brain signal,and promote brain remodeling,so that improve the patient's athletic ability and exercise control level.In this paper,the research progress of BCI technology for the rehabilitation of the upper limb motor function after stroke was reviewed,including the application,the efficacy and the existing limitations.

A new cytotoxic isocoumarin from endophytic fungus Aspergillus versicolor / 中国中药杂志

A new isocoumarin, along with five known ones,were isolated from the fermentation products of an endophytic fungus Aspergillus versicolorby using various chromatographic techniques.Their structures were elucidated on the basis of extensivespectroscopic analysis, including 1D-and 2D-NMR techniques. Compound 1 was evaluated for cytotoxicity against five human tumor cell lines. The results showed that 1 exhibited weak cytotoxicityagainst NB4, SHSY5Y and MCF7 cells with IC₅₀ values of 6.8, 4.3,8.8 μmol•L⁻¹, respectively.

Arthroscopically assisted double Endobutton fixaton technique for the treatment of acute acromioclavicular joint dislocation / 医学研究生学报

Objective With the development of minimally invasion and the popularization of arthroscopy the technology of ar-throscopy has been widely applied for the treatment of acute and the safety of this has been validated.To analyze the clinical effect of ar-throscopically assisted double Endobutton plate reconstruction of coracoclavicular ligament in the treatment of acute acromioclavicular joint dislocation. Methods From November 2013 to December 2014, a total of 23 patients with Rockwood type III,Ⅳ,Ⅴshoulder joint dis-location were included, all cases was treated by arthroscopic double Endobutton fixaton technique.Patients were followed up for 6 to 18 months.The changes of shoulder joint forward elevation and external rotation, Japanese Orthopaedic Association score(JOA), and Visual Analogue score( VAS) of acromioclavicular joint in both perioperative and postoperative were recorded. Results The mean follow-up time was (9.3 ±2.4) months ( range from 6 to 18 months),and mean time from injury to surgery was(10.1 ±3.2)days.The therapeutic effects were achieved in all patients after the arthroscopically assisted double Endobutton plate reconstruction.All the measurements, in-cluding the mean forward elevation JOA scores before and after fixation (71.0 ±5.4 vs 93.5 ±3.6), and mean VAS scores (4.6 ±1.0 vs 1.9 ±0.9), mean forward elevation [(102.5 ±8.6) degrees vs (144.3 ±6.3) degrees], and mean external rotation[(107.1 ±6.2) de-grees vs (149.6 ±7.5) degrees] improved significantly (P<0.05) after the treatment. Conclusion Arthroscopic double Endobutton fixaton technique could provide an effective immobilization of shoulder and acromioclavicular joint, thus improving the function of the joint and achieving an excellent effect in the treatment of acute acromiocla-vicular joint dislocation.