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1.
Chinese Journal of Burns ; (6): 77-80, 2022.
Article in Chinese | WPRIM | ID: wpr-935978

ABSTRACT

Objective: To explore the effects of clinical application of free anterolateral thigh perforator lobulated flap in repair of electrical burn wounds on head based on the concept of donor site protection. Methods: A retrospective observational study was conducted. Eight patients with electrical burns with huge scalp defects and exposed skulls were admitted to the First Affiliated Hospital of Zhengzhou University, from May 2017 to December 2019, who were all males, aged 21-57 (39±13) years, sustaining multiple deep partial thickness to full-thickness electrical burns to 5%-14% total body surface area. Among the scalp burn sites of the patients, 1 case was posterior occipital, 2 cases were parietal occipital, 4 cases were parietal temporal, and 1 case was frontotemporal. After debridement, the defect area was 10 cm×9 cm-16 cm×14 cm. The incision area of the free anterolateral thigh perforator lobulated flap was 22 cm×6 cm-30 cm×9 cm. The artery and vein of flap were anastomosed with superficial temporal artery and vein or facial artery and vein, and the other vein of skin flap was anastomosed with superficial vein of recipient area. The donor site of skin flap was closed by layer interrupted tension-reducing suture. After the operation, the survival of flop, donor site wound healing and complications were observed. The flap appearance, wound healing of donor sites, long-term complications and functional recovery of donor sites were observed on follow-up. Results: After the operation, the flaps of 8 patients survived completely without vascular crisis. The donor sites of flaps in all the patients healed well with no osteofascial compartment syndrome. Seven patients were followed up for 3 to 12 months, and 1 case was lost to follow up. During follow-up, the flaps of the patients' heads were in good appearance but with alopecia. The donor sites showed linear scars, which were well hidden. There were no significant differences in sensory and motor functions between the two sides, and no complications were found such as muscle hernia. Conclusions: Free anterolateral thigh perforator lobulated flap has a good clinical effect in the early repair of electrical burn wounds with huge scalp defect and skull exposure on head, and the donor wounds can be directly closed and sutured, greatly reducing the damage to the donor area.


Subject(s)
Adult , Burns, Electric/surgery , Humans , Male , Middle Aged , Perforator Flap , Reconstructive Surgical Procedures , Skin Transplantation , Soft Tissue Injuries/surgery , Thigh/surgery , Treatment Outcome , Young Adult
2.
Article in Chinese | WPRIM | ID: wpr-927407

ABSTRACT

In order to comprehensively stretch human fascia, adjust the biomechanical balance of fascia system and promote the recovery of physiological function of fascia, a new type of fascia stretching cup is designed. This design is composed of two or more silica gel cups and elastic stretching belts between cups. The bottom surface of the silica gel cup has an annular exhaust groove, which can increase the adsorption capacity of the cup to the skin. In the meanwhile, a removable magnet is placed in the groove at the top of each silica gel cup to assist analgesia. This design is suitable for the prevention and treatment of acute and chronic tendon and bone diseases with imbalance of meridians and tendons.


Subject(s)
Fascia , Humans , Silica Gel , Skin
3.
Protein & Cell ; (12): 47-64, 2022.
Article in English | WPRIM | ID: wpr-922492

ABSTRACT

As a sensor of cytosolic DNA, the role of cyclic GMP-AMP synthase (cGAS) in innate immune response is well established, yet how its functions in different biological conditions remain to be elucidated. Here, we identify cGAS as an essential regulator in inhibiting mitotic DNA double-strand break (DSB) repair and protecting short telomeres from end-to-end fusion independent of the canonical cGAS-STING pathway. cGAS associates with telomeric/subtelomeric DNA during mitosis when TRF1/TRF2/POT1 are deficient on telomeres. Depletion of cGAS leads to mitotic chromosome end-to-end fusions predominantly occurring between short telomeres. Mechanistically, cGAS interacts with CDK1 and positions them to chromosome ends. Thus, CDK1 inhibits mitotic non-homologous end joining (NHEJ) by blocking the recruitment of RNF8. cGAS-deficient human primary cells are defective in entering replicative senescence and display chromosome end-to-end fusions, genome instability and prolonged growth arrest. Altogether, cGAS safeguards genome stability by controlling mitotic DSB repair to inhibit mitotic chromosome end-to-end fusions, thus facilitating replicative senescence.

4.
Article in Chinese | WPRIM | ID: wpr-906379

ABSTRACT

Six dimensional syndrome differentiation theory, put forward by professor GU Xiao-hong at Beijing University of Chinese Medicine based on her theoretical teaching and clinical experience, emphasizes that the syndrome differentiation should be carried out from six dimensions including etiology, disease location, disease stage, disease condition, pathology, and disease nature, which is conducive to clinical thinking training and formation of traditional Chinese medicine (TCM). The differentiation and treatment of Baihutang syndrome frequently seen in cold damage and warm disease still need to be explored. Guided by the six dimensional syndrome differentiation theory coupled with diverse viewpoints of cold damage and warm disease schools, this paper summarized and reinterpreted the understandings and thoughts of GU Xiao-hong and YU He, warm disease specialists of two generations. Considering the lung-stomach dysfunction caused by the internal invasion of exogenous pathogens, Baihutang syndrome was staged into Qi aspect. In this stage, exuberant pathogens and sufficient healthy Qi allowed the prevailing of internal heat and the consumption of body fluid, manifested as high fever, profuse sweating, thirst, and the pulse corresponding to interior excess and heat syndrome. This paper also pointed out that the Baihutang syndrome involved both lung and stomach, and the adoption of Baihutang contributed to preventing tu from restricting shui in the case of extreme excess of Yang brightness and protecting the kidney Yin. As revealed by the dynamic analysis of prognosis of Baihutang syndrome based on the six dimensional syndrome differentiation theory, even though the Baihutang syndrome could be present in both cold damage and warm disease, the specific disease stage, transmission and change, condition, prognosis, pathology, and medication differed. On this basis, a series of prescriptions have been modified from Baihutang, which has expanded the application scope of Baihutang and enriched its research value, thus better promoting its clinical application.

5.
Article in English | WPRIM | ID: wpr-880576

ABSTRACT

OBJECTIVE@#To evaluate the safety and effectiveness of Qishe Pill () on neck pain in real-world clinical practice.@*METHODS@#A multi-center, prospective, observational surveillance in 8 hospitals across Shanghai was conducted. During patients receiving 4-week Qishe Pill medication, Visual Analogue Scale (VAS) and Neck Disability Index (NDI) assessments have been used to assess their pain and function, while safety monitoring have been observed after 2 and 4 weeks.@*RESULTS@#Results from 2,023 patients (mean age 54.5 years) suggest that the drug exposure per unit of body mass was estimated at 3.41 ± 0.62 g/kg. About 8.5% (172/2,023) of all participants experienced adverse events (AEs), while 3.8% (78/2,023) of all participants experienced adverse reaction. The most common AEs were gastrointestinal events and respiratory events. The VAS score (pain) and NDI score (function) significantly decreased after 4-week treatment. An effect-quantitative analysis was also conducted to show that the normal clinical dosage may be consider as 3-4 g/kg, at which dosage the satisfactory pain-relief effect may achieve by 40-mm reduction in VAS.@*CONCLUSION@#These findings showed that patients with cervical radiculopathy who received Qishe Pill experienced significant improvement on pain and function. (Registration No. NCT01875562).

6.
Article in Chinese | WPRIM | ID: wpr-873118

ABSTRACT

Objective::To explore the clinical efficacy of modified Sanzi Yangqintang combined with colon hydrotherapy in the treatment of non-alcoholic fatty liver disease (NAFLD) with phlegm-dampness. Method::Totally 100 patients with NAFLD were selected and randomly divided into treatment group (50 cases) and control group (50 cases). Both groups were orally given silybin and glycyrrhizic acid diamine capsules.The treatment group was also added with modified Sanzi Yangqintang and colon hydrotherapy.The treatment lasted for 7 days.The control group was also added with saline colon hydrotherapy.Main traditional Chinese medicine (TCM) syndrome scores and liver function indexes before and after treatment [alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamate transpeptidase (GGT)], blood lipid routine [cholesterol (TCH), triglyceride (TG)], inflammatory factors [interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α)], FibroScan measurement [liver stiffness measurement (LSM), controlled attenuation parameters (CAP)], uric acid and body weight changes were observed.Adverse reactions were observed, and the patient's medication safety was evaluated. Result::TCM syndrome score, liver enzyme index, blood lipid index, inflammatory factor index, FibroScan CAP, uric acid and body weight of the two groups were significantly reduced than those before treatment(P<0.05, P<0.01) .There was no significant difference in liver enzymes, TCH, IL-6 and LSM between treatment group and control group.And TCM syndrome scores, UA, TNF-α, FibroScan CAP decreased were significantly different from control group (P<0.05). Conclusion::Modified Sanzi Yangqintang combined with colon hydrotherapy can not only alleviate NAFLD with phlegm-dampness symptoms, but also significantly reduce triglyceride, tumor necrosis factor and FibroScan CAP and body mass, with certain clinical efficacy in a short term.

7.
Acta Pharmaceutica Sinica B ; (6): 1205-1215, 2020.
Article in English | WPRIM | ID: wpr-828851

ABSTRACT

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can cause acute respiratory distress syndrome, hypercoagulability, hypertension, and multiorgan dysfunction. Effective antivirals with safe clinical profile are urgently needed to improve the overall prognosis. In an analysis of a randomly collected cohort of 124 patients with COVID-19, we found that hypercoagulability as indicated by elevated concentrations of D-dimers was associated with disease severity. By virtual screening of a U.S. FDA approved drug library, we identified an anticoagulation agent dipyridamole (DIP) , which suppressed SARS-CoV-2 replication . In a proof-of-concept trial involving 31 patients with COVID-19, DIP supplementation was associated with significantly decreased concentrations of D-dimers ( < 0.05), increased lymphocyte and platelet recovery in the circulation, and markedly improved clinical outcomes in comparison to the control patients. In particular, all 8 of the DIP-treated severely ill patients showed remarkable improvement: 7 patients (87.5%) achieved clinical cure and were discharged from the hospitals while the remaining 1 patient (12.5%) was in clinical remission.

8.
Article in Chinese | WPRIM | ID: wpr-826387

ABSTRACT

To compare the differences in apparent diffusion coefficient (ADC) and fractional anisotropy (FA) between brucella spondylitis (BS) groups at different stages before treatment and the normal control group and to evaluate the change trend of ADC value and FA value at different time points before and after treatment. Totally 53 patients suspected of BS by conventional magnetic resonance imaging (MRI) and later confirmed as BS patients by serological tests were enrolled in this study. These patients underwent conventional MRI and diffusion tensor imaging scans,and the ADC value and FA value were measured. Independent sample test was used to compare the ADC value and FA value between the BS group and the control group,the ADC value and FA value between the BS group at each stage. Repeated measurement ANOV was used to compare the ADC values and FA values at different time points before and after treatment. FA imaging showed that the color code of BS was different from that of the normal control group,and the color code of FA imaging showed increased singal. The ADC values of BS in the acute,subacute,and chronic stages [(1.45±0.02)×10 mm /s,(1.35±0.03)×10 mm /s,(1.26±0.05)×10 mm /s,respectively] were significantly higher than those in the control group [(1.06±0.09) ×10 mm /s](=2.538,=0.009;=1.998,=0.032;=1.575,=0.004),and the FA value (0.55±0.02,0.65±0.03,0.71±0.04,respectively) were significantly lower than those of the control group (0.78±0.02) (=2.440,=0.012; =1.847,=0.041;=2.102,=0.003). Repeated measurement analysis showed that there were statistically significant differences in ADC values and FA values at different time points before and after treatment in the acute,subacute,and chronic stages (ADC:=12.100,<0.001;=8.439,=0.005;=9.704,=0.004,respectively;FA:=7.080,=0.002;=6.607;=0.003;=8.868,=0.001,respectively). The ADC values at different time points after treatment were significantly lower than those before treatment or at a previous time point after treatment (=332.14,<0.001),and the FA values were significantly higher than those before treatment or at a previous time point after treatment (=134.26,<0.001). FA color code can intuitively display differences in BS and normal vertebral bodies and show change of color code before and after treatment. Also,the ADC values and FA values can quantitatively reveal differences between BS and normal vertebral body in different time points and quantify BS vertebral lesion changes before and after treatment. In particular,in BS patients who are recovering from treatment,it can quantify microscopic edema. Therefore,diffusion tensor imaging may be useful objective indicator in evaluating the effectiveness of a specific treatment for BS.


Subject(s)
Anisotropy , Brucella , Brucellosis , Diagnostic Imaging , Diffusion Magnetic Resonance Imaging , Diffusion Tensor Imaging , Humans , Spondylitis , Diagnostic Imaging , Microbiology
9.
Journal of Preventive Medicine ; (12): 973-976, 2019.
Article in Chinese | WPRIM | ID: wpr-815934

ABSTRACT

Objective@#To analyze the trend of the fall death rate in Ningbo,and to provide reference for prevention and control of fall death. @*Methods @#The data of fall mortality in Ningbo from 2002 to 2018 was collected to calculate the crude mortality rate,standardized mortality rate,age specific mortality rate and the proportion of fall death types. Joint Point Regression was used to evaluate annual percentage change(APC)of fall mortality. @*Results @#The average annual crude and standardized mortality rate of fall in Ningbo was 16.81/100 000 and 11.18/100 000,showing an upward trend from 2002 to 2018(P<0.05). The standardized mortality rate of fall was 11.57/100 000 in men and 10.41/100 000 in women,and the difference was statistically significant(P<0.05),both showing an upward trend from 2002 to 2018(P<0.05). The standardized mortality rate of fall was 11.07/100 000 in urban residents and 11.25/100 000 in rural residents,and the difference was statistically significant(P<0.05),both showing an upward trend from 2002 to 2018(P<0.05). The mortality rate of fall increased with age(P<0.05). The mortality rate of fall showed a small peak in children less than five years old(1.81/100 000),and began to rise rapidly in people aged 65 years or over and peaked again in people aged 85 years or over. There were 11 141 cases died of falling on the same plane,accounting for 68.25%. Fall deaths occurred mainly at home,with 11 829 cases(72.46%).@*Conclusion @#The mortality rate of fall in Ningbo increased from 2002 to 2018. The males,urban residents,people aged less than five years and aged 65 years or older have high risk of death from fall,who were targets for prevention and control strategies of fall.

10.
Journal of Preventive Medicine ; (12): 774-777, 2019.
Article in Chinese | WPRIM | ID: wpr-815706

ABSTRACT

Objective@#To analyze the epidemiological features of death comorbid with chronic kidney disease in Ningbo,and to provide reference for chronic kidney disease prevention and control. @*Methods@#The information about death comorbid with chronic kidney disease in Ningbo from 2002 to 2017 was collected. The crude mortality,standardized mortality and the proportions of primary death causes were calculated. The annual percentage change(APC)was used to evaluate the trends of the mortality comorbid with chronic kidney disease.@*Results@#From 2002 to 2017,the average annual crude mortality rate and standardized mortality rate of Ningbo residents comorbid with chronic kidney disease were 13.31/100 000 and 9.89/100 000,respectively. The crude mortality rate was 14.25/100 000 in males,which was higher than 12.37/100 000 in females(P<0.05). The crude mortality rate was 14.88/100 000 in urban residents,which was higher than 12.32/100 000 in rural residents(P<0.05). The crude mortality rates of Ningbo residents comorbid with chronic kidney disease from 2002 to 2017 showed an increasing trend and increased with age(P<0.05). The primary causes of death comorbid with chronic kidney disease were urogenital diseases,endocrine nutritional and metabolic diseases,circulatory diseases,tumors and infectious diseases or parasitic diseases,accounting for 44.45%,24.32%,13.51%,6.50% and 3.97%,respectively.@*Conclusion@#The crude mortality rates of Ningbo residents comorbid with chronic kidney disease from 2002 to 2017 showed an upward trend. Men,the elderly and the urban residents were at high risk. The death comorbid with chronic kidney disease mainly attributed to urogenital disease.

11.
Chinese Journal of Stomatology ; (12): 481-486, 2019.
Article in Chinese | WPRIM | ID: wpr-810699

ABSTRACT

Objective@#To investigate the feasibility and application value of toluidine bule-dextran-40 (TB-Dex-40) as the tracer for lymphatic system in head and neck region.@*Methods@#Twenty healthy adult New Zealand white rabbits were equally divided into two groups: the experimental group (TB-Dex-40 group, n=10) and the control group (TB group, n=10). Rabbits in experimental group received submucosal injection of 1.0% (0.14 mOsm/L) TB-Dex-40, and the control group received injection of 1.0% (32.60 mOsm/L) TB.The staining time and fading time of lymphatic vessels and lymphnodes in the neck region were recorded, and the diffusion ranges of the two dyes in the tongue region were measured. Lymph nodespecimen were collected for pathological examination after 10 min, 1 hour and 4 weeks of staining. The experimental animals were sacrificed before and 4 weeks after the experiment. After death, organs of heart, lung, liver and kidney were examined pathologically.@*Results@#TB-Dex-40 reached sentinel lymph node (SLN) and stained lymphatic vessels at an average of (21.67±0.19) s after injection, while in control group was(3.22±0.34) s (P<0.01). The time difference between the two dyes reaching sentinel lymph nodes was statistically significant.The durations from lymphatic staining to marked fading were (19.70±1.34) min in experimental group and (14.30±0.95) min in control group, respectively.The difference was statistically significant (P<0.01). SLN staining by TB-Dex-40 was still evident after 4 weeks, while TB staining has completely faded after 2 d.The average ranges of diffusionin tongue were (10.50±1.08) mm in experimental group and (20.00±1.05) mm in controlgroup, respectively. The difference was statistically significant (P<0.01).No abnormalities were found in blood test and pathological examination of main organs.@*Conclusions@#TB-Dex-40 has high specificity forstaining lymphatic vessels and is a good tracer with potential clinical value.

12.
Acta Pharmaceutica Sinica ; (12): 380-385, 2019.
Article in Chinese | WPRIM | ID: wpr-780118

ABSTRACT

Hypophosphatemia is a common metabolism disease in humans. Fibroblast growth factor 23 (FGF23) inhibits phosphate reabsorption by targeting on the renal tubules. FGF23C-tail contains 73 amino acids from C-terminus of FGF23, serves as an inhibitor of FGF23, and can increase phosphate reabsorption. Therefore, FGF23C-tail is an important drug for hypophosphatemia. In this paper, we constructed a fusion protein of FGF23C-tail with HSA, and investigated the expression of the fusion protein in the Pichia pastoris system. The recombinant gene was constructed by fusion PCR. A high-yield strain was selected by G418 resistance and fermentation yield, and the expression yield was 43.7 mg·L-1 in flask. In 5 L fermenters, the highest expression yield could reach 265.6 mg·L-1. FGF23C-tail-HSA could be used as an inhibitor for FGF23, and could significantly increase blood phosphorus levels in rats. The procedures for care and use of animals were approved by the Ethics Committee of YiChun University. This paper provided a basis research for further studying physiological activity of FGF23C-tail-HSA.

13.
Article in English | WPRIM | ID: wpr-776609

ABSTRACT

OBJECTIVE@#To summarize and critically assess the inhibitory effects of Chinese herbal medicine (CHM) on tumor volume and tumor weight for the treatment of osteosarcoma (OS) in mouse models.@*METHODS@#PubMed, Embase, Web of Science, China Knowledge Resource Integrated Database (CNKI), Wanfang Database, VIP Database, and Chinese BioMedical (CBM) were searched since their inception dates to March 10, 2016. Two reviewers independently selected the controlled studies estimating effects of CHM on mouse OS by administration in vivo. A pair-wise meta-analysis was performed. Twenty-five studies with adequate randomization were included in the systematic review.@*RESULTS@#CHM may significantly inhibit OS growth in mice, as assessed using the tumor weight [20 studies, n=443; 290 for CHM and 153 for the control: pooled mean difference (MD)=-2.90; 95% confidence interval (Cl): -3.50 to -2.31: P<0.01], tumor volume (16 studies, n=382; 257 for CHM and 125 for the control; pooled MD =-2.57; 95% Cl: -3.33 to -1.80; P<0.01) and tumor growth inhibition rate.@*CONCLUSION@#CHM could significantly inhibit the growth of OS in mouse models, which might be supportive for the design of preclinical and clinical trials in future.


Subject(s)
Animals , Drugs, Chinese Herbal , Therapeutic Uses , Mice , Osteosarcoma , Drug Therapy , Publication Bias , Risk Factors , Tumor Burden , Xenograft Model Antitumor Assays
14.
Article in Chinese | WPRIM | ID: wpr-941731

ABSTRACT

OBJECTIVE@#To detect receptor activator of nuclear factor kappa B ligand (RANKL) expressed on B10 cells in rheumatoid arthritis (RA) and to evaluate the correlation between RANKL-producing B10 cells in RA and clinical features and laboratory parameters, trying to reveal the possible role of B10 cells in the pathogenesis of RA and the potential mechanism of impaired immunosuppressive capacities.@*METHODS@#25 RA patients and 20 healthy volunteers were enrolled. These RA patients did not received treatment with glucocorticoids, disease-modifying anti-rheumatic drug and biologics during the recent half of a year. The levels of RANKL-producing B10 cells were measured by flow cytometry (FCM) and polymerase chain reaction (PCR). The correlation between the frequencies of RANKL-producing B10 cells in RA and clinical data, laboratory parameters were analyzed. The role of tumor necrosis factor α (TNF-α) and interleukin 1β (IL-1β) in inducing RANKL expression in B10 cells was evaluated by in vitro stimulation assay. Independent samples t test, Pearson and Spearman correlation were used for statistical analysis.@*RESULTS@#B10 cells were capable of producing RANKL at a low level in health controls. The frequencies of RANKL-producing B10 cells were markedly higher in RA patients than in health controls (3.65%±1.59% vs. 2.25%±0.68%, P<0.01). The frequencies of these cells correlated positively with RA tender joint counts, swollen joint counts and disease activity score in 28 joints (DAS28) (r=0.479, P=0.035; r=0.519, P=0.008; r=0.526, P=0.019). However, no correlation was found between these cells and RA patient age, disease duration, or the levels of erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF) and anti-citrullinated peptide antibody (ACPA). After in vitro stimulation by TNF-α, but not IL-1β, B10 cells isolated from healthy donors demonstrated fundamentally upregulated expression of RANKL.@*CONCLUSION@#Our studies showed the frequencies of RANKL-producing B10 cells were markedly higher in RA patients, and their frequencies were positively correlated with RA tender joint counts, swollen joint counts and DAS28. These findings suggested that B10 cells might be involved in RA bone destruction.


Subject(s)
Antirheumatic Agents , Arthritis, Rheumatoid/metabolism , Autoantibodies/metabolism , B-Lymphocytes, Regulatory/metabolism , Humans , RANK Ligand/metabolism , Rheumatoid Factor
15.
Article in English | WPRIM | ID: wpr-772979

ABSTRACT

Protein nitration and nitrosylation are essential post-translational modifications (PTMs) involved in many fundamental cellular processes. Recent studies have revealed that excessive levels of nitration and nitrosylation in some critical proteins are linked to numerous chronic diseases. Therefore, the identification of substrates that undergo such modifications in a site-specific manner is an important research topic in the community and will provide candidates for targeted therapy. In this study, we aimed to develop a computational tool for predicting nitration and nitrosylation sites in proteins. We first constructed four types of encoding features, including positional amino acid distributions, sequence contextual dependencies, physicochemical properties, and position-specific scoring features, to represent the modified residues. Based on these encoding features, we established a predictor called DeepNitro using deep learning methods for predicting protein nitration and nitrosylation. Using n-fold cross-validation, our evaluation shows great AUC values for DeepNitro, 0.65 for tyrosine nitration, 0.80 for tryptophan nitration, and 0.70 for cysteine nitrosylation, respectively, demonstrating the robustness and reliability of our tool. Also, when tested in the independent dataset, DeepNitro is substantially superior to other similar tools with a 7%-42% improvement in the prediction performance. Taken together, the application of deep learning method and novel encoding schemes, especially the position-specific scoring feature, greatly improves the accuracy of nitration and nitrosylation site prediction and may facilitate the prediction of other PTM sites. DeepNitro is implemented in JAVA and PHP and is freely available for academic research at http://deepnitro.renlab.org.


Subject(s)
Amino Acid Sequence , Amino Acids , Metabolism , Deep Learning , Humans , Internet , Neural Networks, Computer , Nitrosation , Proteins , Chemistry , Metabolism , Reproducibility of Results , Software
16.
Article in Chinese | WPRIM | ID: wpr-259782

ABSTRACT

Spinal cord injury is a serious trauma of the spinal and nervous system, local tissue destruction and microcirculation disturbance can lead to a more serious spinal cord injury and extensive necrosis of neurons. Spinal cord injury often accompany with Inflammation reaction producing a variety of cytokines and bioactive substances, result in macrophage polarization. M1 macrophages polarization are induced by IFN-γ, LPS, TNF-α and so on, it show the damage and proinflammatory effect. M2 macrophages polarization are caused by IL-4, IL-10, IL-13 and show the recovery and anti-inflammatory effect. However, clinical treatment after spinal cord injury is very limited, inhibition of proinflammatory and promotion of anti-inflammatory by regulating the M1 macrophages and M2 macrophages is a new direction for the treatment of spinal cord injury. The article will review different phenotype and function of macrophages after spinal cord injury.

17.
Article in Chinese | WPRIM | ID: wpr-699654

ABSTRACT

Objective To investigate whether paraptosis and autophagy have an effect on acute retinal ischemia-reperfusion injury (RIRI) in an experimental rat model that recapitulates features of acute hypertensive glaucoma and to explore the possible underlying mechanisms.Methods A total of 30 adult male Sprague-Dawley rats were randomly divided into RIRI group and control group.The acute RIRI model was induced with normal saline in the right eye of rats from the RIRI group by anterior chamber perfusion,while the rats in the control group left untreated.On day 1,day 3,day 7,day 28 after RIRI model establishment,the changes in morphology of retinal ganglion cells (RGCs) were observed by transmission electron microscopy (TEM),and the expression of microtubule-associated protein 1 light chain 3 (LC3) was measured by immumofluorescence methods.Results When compared with the control group,the number of cytoplasmic vacuoles predominantly derived from the progressive swelling of mitochondria and/or endoplasmic reticulum (ER) in RGCs were increased in the RIRI group from day 1 to day 28 by TEM.And ultra-structural analyses showed the double-or multiple-membrane autophagosomes were markedly accumulated in the cytoplasm of RGCs following acute RIRI.The average number of autophagic vacuoles in the cytoplasm of RGCs was 0.79 per 50 μm2 in the control group,and the average number of autophagosomes reached to a maximum on day 7 after acute RIRI at 2.29 per 50 μm2,which was statistically significant compared with the control group (P < 0.05).Compared to the control group,LC3 expression in the cytoplasm of RGCs was up-regulated on day 1 after acute RIRI,which sustained throughout the experimental period.The percentage of LC3 positive cells in the retinal ganglion cell layer was 15.90% in the control group,and the data was 46.95% and 52.30% on day 1 and day 28 after RIRI,respectively,both which were statistically significant compared with the normal control group (both P < 0.05).Conclusion Both paraptosis and autophagy participate in death of RGCs after acute RIRI.Programmed cell death in different cells,either coexistence of multiple-cell death form or a single-cell death form,participates in the pathogenesis of acute RIRI.

18.
International Eye Science ; (12): 621-625, 2018.
Article in Chinese | WPRIM | ID: wpr-695263

ABSTRACT

·AIM: To investigate the role of small interference RNA interference targeted Integrin-linked kinase (ILK SiRNA) on the proliferation and apoptosis of human Tenon fibroblasts (HTFs) induced by transforming growth factor-β2(TGF-β2). · METHODS: The HTFs were identified by immunofluorescence analysis with Vimentin and keratin. HTFs with no other addiction was as normal control;H+T group:HTFs+5μ g/L TGF-β2;H+T+NC SiRNA group:HTFs+5μ g/L TGF-β2+50nmol/L negtive SiRNA; H+T+ILK SiRNA group:HTFs+5μ g/L TGF-β2+50nmol/L ILK SiRNA. The ILK SiRNA were transfected into HTFs by lipofectamine 2000, then the cells were stimulated with 5μ g/L TGF - β2. The protein expression of ILK were analyzed by Western Blot. The proliferation levels of HTFs were analyzed by CCK-8, the apoptosis of HTFs were analyzed by Hoechst 33342/PI double staining. ·RESULTS: The protein ILK were expressed in both TGF-β2treated and control groups, and TGF- β2up-regulated the expression of ILK, ILK SiRNA inhibited the protein expression of ILK(P< 0. 05). CCK- 8 analysis showed that compared with the normal control group,the cell proliferation rate of HTFs in TGF-β2treated group increased, and in ILK SiRNA group the cell proliferation rate was suppressed after exposured to ILK SiRNA for 48h (P<0.05). Hoechst 33342/PI double staining showed that there was no change on the apoptosis of TGF - β2 stimulated group (P>0.05), compared with the normal control group, however in the ILK SiRNA group, we found lots of apoptosis cells and a few of necrotic cells (P<0.05). ·CONCLUSION: The ILK SiRNA attenuates the abnormal proliferation of HTFs induced by TGF - β2, thereby enhancing the apoptosis of HTFs.

19.
Article in Chinese | WPRIM | ID: wpr-690302

ABSTRACT

Objective To explore the value of fractional anisotropy(FA) and apparent diffusion coefficient(ADC) in the early diagnosis of intervertebral disc change in patients with Brucella spondylitis(BS) and in the assessment of BS disc changes after treatment and to further investigate the imaging features of BS in its acute,subacute,and chronic stages. Methods Totally 60 serologically or pathologically confirmed BS patients who were treated in the First Hospital Affiliated to Hebei North University(n=20) or ZhangJiakou Infectious Diseases Hospital(n=40) were enrolled. BS patients were scanned by CT,magnetic resonance imaging,and diffusion tensor imaging,and the FA and ADC values of the disc were measured using the DTI Fiber Trak package. The FA and ADC values were compared in each period and after treatment. Results The ADC value significantly increased and the FA value significantly decreased in different stages(P<0.01). Six months after treatment,the ADC value was significantly lower than the pre-treatment,and the FA value was significantly increased(P<0.01). The ADC value 12 months after treatment for patients in acute or subacute stage and the FA value 12 months after treatment for patients in all stages were significantly different from those in the 6 month after treatment(P<0.01),and the only exception was that the ADC value in the chronic stage was not significantly different between 12 and 6 month after treatment(P=0.089).Conclusion FA and ADC values are more sensitive than conventional MRI sequences in the diagnosis of BS intervertebral disc change and therefore can be used for the early diagnosis and prognostic prediction.

20.
Chinese Medical Journal ; (24): 1321-1326, 2018.
Article in English | WPRIM | ID: wpr-688124

ABSTRACT

<p><b>Background</b>The diagnosis and treatment of small-bowel diseases is clinically difficult. The purpose of this study was to evaluate the diagnostic and therapeutic value of double-balloon enteroscopy in small-bowel diseases.</p><p><b>Methods</b>The history and outcomes of 2806 patients who underwent double-balloon enteroscopy from July 2004 to April 2017 were reviewed, which included 562 patients with obscure digestive tract bleeding, 457 patients with obscure diarrhea, 930 patients with obscure abdominal pain, 795 patients with obscure weight loss, and 62 patients with obscure intestinal obstruction. Examinations were performed through the mouth and/or anus according to the clinical symptoms and abdominal images. If a lesion was not detected through one direction, examination through the other direction was performed as necessary. Eighty-four patients with small-bowel polyps, 26 with intestinal obstruction caused by enterolith, and 18 with bleeding from Dieulafoy's lesions in the small intestine were treated endoscopically.</p><p><b>Results</b>A total of 2806 patients underwent double-balloon enteroscopy, and no serious complications occurred. An endoscopic approach through both the mouth and anus was used in 212 patients. Lesions were detected in 1696 patients, with a detection rate of 60.4%; the rates for obscure digestive tract bleeding, diarrhea, abdominal pain, weight loss, and intestinal obstruction were 85.9% (483/562), 73.5% (336/457), 48.2% (448/930), 49.1% (390/795), and 62.9% (39/62), respectively. For patients with small-bowel polyps who underwent endoscopic therapy, no complications such as digestive tract bleeding and perforation occurred. Intestinal obstruction with enteroliths was relieved with endoscopic lithotripsy. Among the 18 patients with bleeding from small-bowel Dieulafoy's lesions, 14 patients were controlled with endoscopic hemostasis.</p><p><b>Conclusion</b>Double-balloon enteroscopy is useful for diagnosing and treating some small-bowel disease.</p>


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Double-Balloon Enteroscopy , Methods , Female , Gastrointestinal Hemorrhage , Diagnosis , General Surgery , Humans , Intestinal Diseases , Diagnosis , General Surgery , Intestinal Obstruction , Intestine, Small , Diagnostic Imaging , Leiomyosarcoma , Diagnosis , General Surgery , Lymphoma , Diagnosis , General Surgery , Male , Middle Aged , Polyps , Diagnosis , General Surgery , Young Adult
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