Objective:To discuss the repairment effect of intra-articular injection of adipose derived stem cells(ADSCs)on articular cartilage destruction in the temporomandibular joint osteoarthritis(TMJOA)model rabbits,and to clarify the possible mechanism.Methods:Twenty-seven rabbits were randomly divided into control group,model group,and ADSCs group.The ADSCs of the rabbits were extracted and cultured.The rabbit TMJOA model was prepared by monosodium-iodoacetate(MIA)injection technique.The temporomandibular joint cavity of the TMJOA model rabbits in ADSCs group was given two continuous intra-articular injections of 1.0×106 mL-1 ADSCs,while the rabbits in control and model group were given sequivalent volume of saline into the temporomandibular joint cavity.After 8 weeks,Micro-CT scan was performed on the temporomandibular joints of the rabbits in various groups;the bone volume fraction(BV/TV),bone surface area/bone volume(BS/BV),trabecular thickness(Tb.Th),trabecular separation(Tb.Sp),and trabecular number(Tb.N)of condyles tissue of the rabbits in various groups were analyzed;HE staining was used to observe the pathomorphology of condyles tissue of the rabbits in various groups;immunohistochemistry was used to detect the localization and expression levels of SRY-related high mobility group box gene 9(SOX9),matrix metalloproteinase-13(MMP-13),and vascular endothelial growth factor(VEGF)proteins in condyles tissue of the rabbits in various groups;Western blotting method was used to detect the expression levels of SOX9,MMP-13,and VEGF proteins in condyles tissue of the rabbits in various groups.Results:The micro-CT scan results showed that compared with control group,the BV/TV,Tb.Th,and Tb.N of condyles tissue of the rabbits in model group were significantly decreased(P<0.05),while the BS/BV and Tb.Sp were significantly increased(P<0.05);compared with model group,the BV/TV,Tb.Th,and Tb.N in condyles tissue of the rabbits in ADSCs group were significantly increased(P<0.05),and the BS/BV and Tb.Sp were significantly decreased(P<0.05).The HE staining results showed that the condylar cartilage surface of the rabbits in control group was smooth with clear layers and intact structure;compared with control group,the surface of condyles tissue of the rabbits in model group was irregular with thickened hypertrophic layer and areas of cell depletion and clustering;compared with model group,the pathological damage of condyles tissue of the rabbits in ADSCs group was significantly decreased.The immunohistochemical staining results showed that compared with control group and ADSCs group,the number of brown granule in condyles tissue of the rabbits in model group was increased,mainly concentrated in the hypertrophic layer,especially in the bone cartilage junction site and the expression levels of SOX9,MMP-13,and VEGF proteins in condyles tissue of the rabbits in model group were significantly increased(P<0.05);compared with model group,the number of brown granule in condyles tissue of the rabbits in ADSCs group was significantly decreased,and the expression levels of SOX9,MMP-13,and VEGF proteins were significantly decreased(P<0.05).The Western blotting results showed that compared with control group,the expression levels of SOX9,MMP-13,and VEGF proteins in condyles tissue of the rabbits in model group were significantly increased(P<0.05);compared with model group,the expression levels of SOX9,MMP-13,and VEGF proteins in condyles tissue of the rabbits in ADSCs group were significantly decreased(P<0.05).Conclusion:Intra-articular injection of ADSCs can effectively repair the cartilage destruction in TMJOA,alleviate the cartilage injury,and mitigate the progression of osteoarthritis.

Objective:To discuss the therapeutic effect of resveratrol on the temporomandibular joint osteoarthritis(TMJOA),and to clarify the related mechanism.Methods:Forty-five SD rats were randomly divided into control group,model group,and resveratrol group,and there were 15 rats in each group.The rats in model group and resveratrol group were intra-articularly injected with 50 μL of 20 g·L-1 monosodium iodoacetate(MIA)to set TMJOA rat models,while the rats in control group were injected with an equal volume of normal saline.Three weeks after modeling,the rats in resveratrol group received an injection of 80 μL resveratrol solution,once a week for three weeks,while the rats in control and model groups were injected with an equal volume of normal saline.Micro-computed tomography(Micro-CT)system was used to detect the condyle structure and the bone volume fraction(BV/TV),trabecular thickness(Tb.Th),trabecular spacing(Tb.Sp),and trabecular number(Tb.N)of the rats in various groups were calculated;HE staining and toluidine blue staining were used to observe the pathomorphology of temporomandibular joint(TMJ)tissue of the rats in various groups;immunohistochemistry was used to detect the expression levels of SRY-related HMG box(SOX)-9,matrix metalloproteinase(MMP)-13,silent information regulator(Sirt)1,phosphatidylinositol 3-kinase(PI3K),phosphorylated protein kinase B(p-Akt),and phosphorylated mammalian target of rapamycin(p-mTOR)in TMJ tissue of the rats in various groups;real-time quantitative PCR(RT-qPCR)method was used to detect the expression levels of SOX-9,MMP-13,Sirt1,PI3K,mTOR,and Akt mRNA in TMJ tissue of the rats in various groups.Results:Three weeks after modeling,condylar bone was destructed,the surface was roughness,and continuity interruption were observed,indicating TMJOA model of the rats was established successfully.The Micro-CT system results showed that the condylar surface of the rats in control group was smooth and regularly shaped,with continuous bone texture;the rats in model group had significant condylar destruction,disrupted continuity,surface roughness,and varying degrees of bone defects;the rats in resveratrol group showed alleviated condylar lesions and improved appearance.Compared with control group,the BV/TV and Tb.Th of the rats in model group were significantly decreased(P<0.05),and Tb.Sp was significantly increased(P<0.05);compared with model group,the BV/TV and Tb.Th of the rats in resveratrol group were significantly increased(P<0.05),and the Tb.Sp was significantly decreased(P<0.05).The HE staining results showed clear layers and orderly chondrocyte arrangement in condyle of the rats in control group;the rats in model group showed rough uneven surface,obvious defects,and typical TMJOA features;the rats in resveratrol group showed slightly rough surface with generally clear layers and orderly arranged cells.The toluidine blue staining results showed distinct blue-purple staining of chondrocytes in hypertrophic layer of the rats in control group;pale staining or even loss of staining in some areas of the rats in model group;and distinct and relatively uniform staining in hypertrophic layer of the rats in resveratrol group.The immunohistochemistry results showed that compared with control group,the expression levels of MMP-13,PI3K,p-Akt,and p-mTOR proteins in TMJ tissue of the rats in model group were significantly increased(P<0.05),while the expression levels of SOX-9 and Sirt1 proteins in TMJ tissue of the rats were significantly decreased(P<0.05);compared with model group,the expression levels of SOX-9 and Sirt1 proteins in TMJ tissue of the rats in resveratrol group were significantly increased(P<0.05),whereas the expression levels of MMP-13,PI3K,p-Akt,and p-mTOR proteins were significantly decreased(P<0.05).The RT-qPCR results showed that compared with control group,the expression levels of MMP-13,PI3K,Akt,and mTOR mRNA in TMJ tissue of the rats in model group were significantly increased(P<0.05),while the expression levels of SOX-9 and Sirt1 mRNA were significantly decreased(P<0.05);compared with model group,the expression levels of SOX-9 and Sirt1 mRNA in TMJ tissue of the rats in resveratrol group were significantly increased(P<0.05),whereas the expression levels of MMP-13,PI3K,Akt,and mTOR mRNA were significantly decreased(P<0.05).Conclusion:Resveratrol has therapeutic effect on TMJOA,and its mechanism may be related to the activation of Sirt1 and inhibition of the PI3K-Akt-mTOR signaling pathway.

OBJECTIVE To mine the focus and emotional attitude of the public on rare diseases， and to provide decision- making reference for relevant departments to formulate and implement relevant policies， systems and strategies for medical security of rare diseases. METHODS Latent Dirichlet allocation （LDA） topic model and sentiment analysis method were used to analyze the comment text of short videos related to the “nosinasine” medical insurance admission event on the Bilibili video website， mine the theme and sentiment tendency of the text， and put forward relevant strategy suggestions. RESULTS A total of 8 videos with tens of thousands of playback and 7 109 text data were obtained. According to the LDA analysis， online public paid attention to 9 topics related to rare diseases （the price of rare disease drugs， the inclusion of rare disease drugs in medical insurance， the status quo of research and development of rare disease drugs， the scope of medical insurance and the medical security system， the plight of rare disease patients， the prevention and screening of rare diseases， the value of rare disease drugs in medical insurance， the Chinese and western medical methods of rare diseases， and the supply and demand status of rare disease drugs）， which could be summarized into 4 categories according to the objects of concern （rare disease drugs， rare disease medical insurance， rare disease medical and health services and rare disease patient groups）. On the whole， the emotional tendency of the Internet public towards each topic showed a low positive and high negative tendency. CONCLUSIONS The public paid more attention to the price， research and development， supply and demand of rare disease drugs， and was deeply worried about the current medical status of rare diseases in China. To strengthen and improve the medical security for patients with rare diseases， such as actively carrying out public health services for rare diseases， strengthening cooperation in the diagnosis and treatment of rare diseases， and researching rare disease drugs， etc. Chinese medical and health departments can make concerted efforts in medical and health services， drug supply security， medical security and other social security.

Objective:Four cases with NLRP3-related autoinflammatory diseases were reported to summarize the clinical characteristics, genotype, and treatment responses of the disease, and to improve clinical pediatricians' understanding of the disease.Methods:A retrospective analysis was performed on 4 cases with NLRP3-related autoinflammatory diseases diagnosed in Children's Hospital of Anhui Province in 2016—2021, and the clinical features and treatment progress of NLRP3-related autoinflammatory diseases were retrospectively analyzed based on the clinical features, gene reports, and literature review.Results:① All 4 cases were male. Cases 1, 2, and 3 had the disease onset after birth, and case 4 had the disease onset 6 months after birth. All showed periodic fever, repeated urticaria-like rash, protruding forehead, and saddle nose. White blood cells count, erythrocyte sedimentation rate, and C-reactive protein were increased during the attack period, and those in the interval period were normal, and antibiotic treatment was ineffective. ② The genetic test of all these 4 children showed NLRP3 mutation. Children 1, 2, and 3 were heterozygous mutations, and their parents were wild-type. The mutation was located at chromosome Chr1: 247587658, exon c913 (exon3). G>A, the 305th aspartic acid (Asp) of the protein was changed to asparagine (Asn) in child 1. The mutation was located at the chromosomal Chr1: 247588072, the nucleic acid was changed to c1327(exon3)T>C, and the amino acid was changed to p.Y443H in cases 2 and 3. Somatic heterozygous mutation was found in case 4, and the child's parents were wild-type. In this case, the mutation was located at chromosomal Chr1: 247587658, exon3 G>A, and the 305th Asp of the protein was changed to Asn. ③Children in cases 1, 2, and 3 were treated with glucocorticoids and non-steroidal anti-inflammatory drugs at the initial stage, but the effects were limited. After receiving IL-1 antagonist treatment fever, skin rash, joint swelling and pain disappeared, and the inflammatory indexes were returned to normal. The child 4 received non-steroidal anti-inflammatory drugs and methotrexate, but he failed to respond to the treatment. Treatment with tocilizumab was not effective, however, fever, skin rash, or joint pain disappeared after treated with Khanna.Conclusion:①NLRP3-related autoinflammatory diseases can cause periodic fever, urticaria, joint involvement, and severe involvement of the central nervous system and organ amyloidosis. Which are early misdiagnosis is prone to systemic juvenile idiopathic arthritis. ②The disease was an inflammatory disease mediated by interleukin-1. At present, non-steroidal anti-inflammatory drug, glucocorticoid and chronic anti-rheumatic drugs have limited effects. IL-1 antagonists are effective and safe in the treatment of the disease.

ObjectiveTo analyze the epidemic characteristics and trend of mosquito vectors related to Japanese encephalitis （JE） in Mengla County， and to provide scientific evidence for JE prevention and control. MethodsThe JE related mosquito vector monitoring data in Mengla County from 2016 to 2020 were collected and subjected to further statistical analysis. ResultsA total of 1 689 mosquitoes were captured at the JE mosquito vector monitoring sites in Mengla County， 36.3% of which were captured in 2020 and 13.3% in 2017. The density of Culex tritaeniorhynchus was the highest （3.04 per lamp per day）， and that of Anopheles sinensis was the lowest （1.03 per lamp per day）. The distribution of mosquito species showed significant difference in the same year. The mosquito density in pig house was 12.93 per lamp∙day， and that in human house was 4.67 per lamp∙day. The mosquito density of different mosquito species in pig house was higher than that in human house. There was no significant difference in the site distribution of Anopheles sinensis， but there were significant differences in the site distribution of Culex tritaeniorhynchus， Culex pipiens quinquefasciatus and other mosquito species. The mosquito density peaked in May （12.78 per lamp per day） and July （10.28 per lamp per day）. The temporal distribution showed that the vector density decreased gradually from May to October， however， the species population structure also varied significantly， and the trends of each mosquito species also varied greatly. In Mengla， Culex tritaeniorhynchus peaked in May. ConclusionThe JE epidemic situation in Mengla County is still severe. It is recommended to strengthen prevention and control in the peak season of mosquito activities， such as actively carrying out patriotic health campaigns， and effective public education. At the same time， we should also strengthen the JE vaccination for school-age children and the training of medical personnel.

ObjectiveTo analyze the epidemic characteristics of foodborne disease outbreaks in Mengla County， Yunnan Province， so as to provide basis for formulating corresponding prevention and control measures. MethodsThe data of foodborne disease outbreaks in Mengla County， Yunnan Province from 2017 to 2021 in the national "foodborne disease outbreak monitoring system" were collected. The time， population， region， place， pathogenic factors and inducing links of the events were statistically analyzed. ResultsFrom 2017 to 2021， a total of 68 incidents were reported， including 526 cases and 5 deaths. The total incidence rate was 23.40% and the case fatality rate was 0.95%. The peak period was from May to July， with the largest number of reported events in July. The reporting areas were mainly Mengla Town （35.29%）， Guanlei Town （11.76%） and Mengpeng Town （10.29%）. The main place of the incident was family （76.47%）. The main pathogenic factors were plant toxins （79.41%）， mainly through the ingestion of wild mushrooms （68.52%）， improper processing of green beans （12.96%） and aconitum （9.26%）. ConclusionAccording to the epidemiological characteristics of Mengla County， we should focus on the public education of health knowledge in key areas and places， especially on the identification of wild mushrooms， to prevent accidental eating. At the same time， we should strengthen the monitoring and risk assessment of foodborne diseases， find potential risks as soon as possible， issue early warning and forecast in time， and constantly improve the clinical treatment ability of poisoned patients.

ObjectiveTo analyze the epidemic characteristics of dengue fever in Mengla County and provide basis for scientific prevention and control of dengue fever. MethodsWe collected the case information of dengue fever in Mengla County reported by the infectious disease reporting information system of China Center for Disease Control and prevention from January 1 to December 31， 2019 and the case field investigation records. The case data were analyzed by descriptive epidemiological method. ResultsIn 2019， Mengla County reported 369 cases of dengue fever， all of which were unclassified， including 354 clinically diagnosed cases， 15 confirmed cases， 6 severe cases， and there was no deaths. The annual incidence rate was 120.98/10⁵. Mengla Town had the most cases （145 cases， 39.30%） followed by 63 cases （17.07%） in Mengpeng Town. The reported cases were mainly local cases （65.85%）. The ratio of male to female was 1.25∶1. The age distribution was mainly in the group of 21‒60 years old （82.38%）. Farmers （112 cases， 30.35%） and business service providers （85 cases， 23.04%） were the majority. The annual cases were distributed from May to November， of which the most were reported in September， and the number of cases reported from July to October accounts for 93.22% of all cases. ConclusionMengla County is still a high incidence area of dengue fever in Yunnan Province， and the vector Aedes is widespread. It is suggested to strengthen mosquito prevention and control in the epidemic season， actively carry out patriotic health campaign， carry out special rectification of the environment in rural areas， and conduct effective public education.

Objective: To explore the influence of pVR-IL15 gene adjuvant on the immune responses of different immunization strategies. Methods: The sequential immunization strategies were used in BALB/c mice with a DNA vaccine, recombinant modified vaccinia virus Ankara and recombinant adenovirus expressing HBsAg respectively and combined with a gene adjuvant pVR-IL15. Cellular and humoral immune responses were evaluated by IFN-γ enzyme-linked immunospot assay (ELISPOT) and enzyme-linked immunosorbent assay (ELISA), respectively. Results: The levels of humoral and cellular immune responses in the immune groups combined with pVR-IL15 were significantly higher than those of the non-combined with pVR-IL15. Conclusions The pVR-IL15 gene adjuvant can enhance the immune responses induced by the recombinant viruses expressing HBsAg.

ObjectiveTo compare the therapeutic efficacy between warm needling and Western medication in treating chronic atrophic gastritis.MethodSixty patients were randomized into an observation group and a control group, 30 cases in each group. The observation group was intervened by warm needling, selecting Guanyuan (CV4), Qihai (CV6), Zusanli (ST36), Xuehai (SP10), and Geshu (BL17); The control group was by Western medication, including Omeprazole, Amoxillin, Metronidazole, etc. The clinical efficacies were compared after 8-week treatment. Besides, gastroscopewas ordered at outset and after 8-week treatment to compare the therapeutic efficacies.ResultIn comparing the clinical symptoms, the total effective rate was 93.3% in the observation group versus 70.0% in the control group (P<0.05); the gastroscope scores dropped significantly in both groups after 8-week treatment (P<0.05), and the score of the observation group was significantly lower than that of the control group (P<0.05). ConclusionAcupuncture-moxibustion can significantly improve the clinical symptoms and gastroscopic results in patients with chronic gastritis, and its therapeutic efficacy is superior to that of Western medication.

OBJECTIVE: To explore the clinical features of acute urine retention (AUR) ocurring in patients with benign prostate hyperplasia (BPH). METHODS: Clinical data from 548 patients diagnosed with BPH were retrospectively studied, and the clinical parameters of these patients with or without AUR were analyzed by statistical methods. RESULTS: Development of AUR was found in 164 patients (29.9%). Patients' age, IPSS, maximum flow rate (Q(max)), residual urine volume, prostate volume, transition zone volume, prostate-specific antigen (PSA) density, total PSA (tPSA) and free PSA (fPSA) including the ratio of free to total PSA(f/tPSA) were significantly different in the 2 groups (P<0.05), while there were no significant differences in the disease duration and transition zone index between the 2 groups (P>0.05). Multivariate logistic regression analysis showed that IPSS score, residual urine volume, tPSA, and Q(max) were risk factors for predicting the development of AUR. CONCLUSION BPH patient's age, IPSS, Q(max), residual urine volume, prostate volume, transition zone volume, tPSA and fPSA, and PSA density all influence the occurrence of AUR, in which symptom severity, residual urine volume, total PSA and Q(max) are the principal risk factors for prognosing AUR.
Adult ; Age Factors ; Aged ; Aged, 80 and over ; Humans ; Male ; Middle Aged ; Prostate-Specific Antigen ; blood ; Prostatic Hyperplasia ; complications ; pathology ; Retrospective Studies ; Risk Factors ; Urinary Retention ; epidemiology ; etiology