Glycine receptors (GlyRs) belong to the ligand-gated ion channel receptor superfamily and are widely distributed throughout the central nervous system. GlyRs are essential for maintaining visual, auditory, sensory and motor functions, and abnormalities in its structure and function can lead to various neurological disorders. This review aims to provide an extensive analysis of the structure, function and regulatory mechanisms of GlyRs, and evaluate its role in various central nervous system diseases. Ultimately, this review will provide theoretical support for the development of novel drugs specifically targeting GlyRs.
Receptors, Glycine/physiology* ; Humans ; Animals ; Central Nervous System Diseases/metabolism*

AIM: To explore the key genes and molecular markers involved in the retinoblastoma development through bioinformatics.METHODS: The mRNA microarray datasets from the Gene Expression Omnibus(GEO)database were obtained, and the differentially expressed gene(DEG)between retinoblastoma cell lines and normal retinal pigment epithelial(RPE)cell lines were analyzed through gene ontology(GO)and KEGG enrichment analysis. To screen key genes, establish protein-protein interaction(PPI)network, and use receiver operating characteristic(ROC)curve to assess clinical diagnostic efficacy. The RNA expressions of key genes in retinoblastoma cell lines and normal RPE cell lines were compared by qRT-PCR.RESULTS: A total of 121 DEGs were obtained from the retinoblastoma dataset of GSE97508 and GSE110811. KEGG pathway analysis showed that DEG were enriched in phototransduction, cell cycle, and p53 signaling pathways. A total of 9 key genes, including MCM6, DTL, UBE2T, TOP2A, NUSAP1, CENPK, RRM2, RLBP1, and RHO, were obtained from the intersection of PPI network analysis and the top 30 DEG from each dataset. The differentially expressed 9 key genes were verified in GSE24673. ROC analysis showed that the area under the curve(AUC)for UBE2T, RRM2, and RHO was ≥80%, and there was a statistical significance(P>0.05). The mRNA level of UBE2T and RRM2 in retinoblastoma was significantly higher than APRE-19 cell line, while the mRNA level of RHO was significantly lower than that of ARPE-19 cell line.CONCLUSION: UBE2T, RRM2, and RHO may be served as potential molecular markers and potential therapeutic targets for retinoblastoma.

Objective To compare the prevalence and disease burden of thyroid cancer and their trends between China and the globe from 1990 to 2019.Methods With the global disease burden data in 2019,Joinpoint was used to predict the trends of the disease burden of thyroid cancer in China and the globe from 1990 to 2019,and logarithmic linear model was used to test the predicted trends.The R language was used for predictive analysis and graphic plotting of the disease burden from 2020 to 2035.Results From 1990 to 2019,the standardized incidence rate and the standardized mortality rate of thyroid cancer in China were lower than those in the globe.The standardized incidence rate in China and the globe showed an increasing trend(with the increases of 102.65% and 40.65%,respectively),while the standardized mortality rate showed a decreasing trend(with the decreases of 7.63% and 4.91%,respectively).Compared with those of the female population,the standardized incidence and mortality rates of the Chinese male population increased significantly from 1990 to 2019(the rates of change in the male population were 48.65% and 214.60%,respectively;and the rates of change in the female population were -39.01% and 60.44%,respectively).China's overall standardized years of life lost(YLL),years lived with disability(YLD),and disability-adjusted life years(DALY)rates during the 30-year period were lower than the global average.The Chinese and global populations showed the standardized YLL rate decreasing by 16.61% and 6.88% and the standardized DALY rate decreasing by 10.77% and 3.65%,respectively,while the rates of standardized YLD increased by 128.91% and 46.89%,respectively.The magnitude of DALY in China and the world was mainly influenced by YLL.The standardized incidence,mortality,and DALY rates of the Chinese male population were gradually approaching the global levels.From 1990 and 2019,thyroid cancer showed a higher mortality rate in the population with the age ≥ 75 years and a higher incidence rate in the population with the age <75 years.It is projected that from 2020 to 2035,the standardized incidence rates in China and the world will increase by 36.66% and 21.15%,respectively;the standardized mortality rates will decrease by 20.19% and 3.46%,respectively;and the standardized DALY rate is expected to decrease by 7.08% in China and increase by 4.35% in the world.Conclusions From 1990 to 2019,China's standardized incidence rate of thyroid cancer increased and had a higher increase than the global level,and the standardized mortality rate decreased,with a slightly higher decrease than the global level.However,the increases in the standardized incidence rate and mortality rate of this disease in China's ≥75 years male population were severe.Although China's disease burden of thyroid cancer showed a decreasing trend in line with the global trend as a whole,the disease burden in the Chinese males was higher than that in the females.Specifically,the disease burden due to premature death was predominant,and the burden in specific populations requires policy attention.
Male ; Humans ; Female ; Aged ; Quality-Adjusted Life Years ; Reference Standards ; Cost of Illness ; China/epidemiology* ; Thyroid Neoplasms/epidemiology* ; Incidence

OBJECTIVE: To compare the clinical effect on the joint attention and social communication in children with autism spectrum disorder (ASD) between the combined treatment of acupoint catgut embedding therapy with rehabilitation training and the simple application of rehabilitation training. METHODS: A total of 60 children with ASD were randomized into an observation group and a control group, 30 cases in each one. In the control group, the routine ASD rehabilitation training was adopted, including conductive education, speech training and music therapy, once a day. In the observation group, on the base of the treatment as the control group, the catgut embedding therapy was applied to Shenting (GV 24), Baihui (GV 20), Shenmen (HT 7) and the optic area (the point of scalp acupuncture), once a week. In the two groups, the treatment for 4 weeks was as one course, at the interval of 1 week between the courses. A total of 3 courses of treatment were required. The social domain of the autism treatment evaluation checklist (ATEC) and the autism behavior checklist (ABC) were adopted to assess the therapeutic effect of the two groups. RESULTS: After treatment, the scores of each item of the social domain in ATEC and the scores of ABC (feeling, communication, physical movement, language and healthy behavior) were all lower than those before treatment in the two groups (<0.01). The scores of each item in the observation group were lower than those in the control group after treatment (<0.05). CONCLUSION The combined treatment of acupoint catgut embedding therapy with the rehabilitation training effectively improves in the joint attention and social communication. The therapeutic effect of this combined treatment is better than the simple application of rehabilitation training.

OBJECTIVE: Larotaxel is a new chemical structure drug, which has not been marketed worldwide. Accordingly, the standard identification and quantification methods for larotaxel remain unclear. The spectrometric analyses were performed for verifying weight molecular formula, molecular weight and chemical structure of larotaxel. Besides, a quantification method was developed for measuring larotaxel in the liposomes. METHODS: The molecular formula, molecular weight and chemical structure of larotaxel were studied by using mass spectrometry (MS), infra-red (IR), nuclear magnetic resonance (NMR) and ultraviolet-visible (UV-vis) spectrometric techniques. The absorption wavelength of larotaxel was investigated by UV-vis spectrophotometry full-wavelength scanning. Besides, a quantification method was developed by high performance liquid chromatography (HPLC), and then validated by measuring the encapsulation efficacy of larotaxel liposomes. RESULTS: The four spectral characteristics of larotaxel were revealed and the corresponding standard spectra were defined. It was confirmed that larotaxel had the structure of tricyclic diterpenoids, with the molecular formula of C45H53NO14, the molecular weight of 831.900 1, and the maximum absorption wavelength of 230 nm. The quantitative method of larotaxel was established by using HPLC with a reversed phase C18 column (5 μm, 250 mm×4.6 mm), a mobile phase of acetonitrile-water (75:25, volume/volume), and a detection wavelength of 230 nm. The validation study exhibited that the established HPLC method was stable, and had a high recovery and precision in the quantitative measurement of larotaxel in liposomes. In addition, a new kind of larotaxel liposomes was also successfully prepared. The particle size of the liposomes was about 105 nm, with an even size distribution. And the encapsulation efficiency of larotaxel in the liposomes was above 80%. CONCLUSION The present study offers reference standard spectra of larotaxel, including MS, IR, NMR, and UV-vis, and confirms the molecular formula, molecular weight and chemical structure of larotaxel. Besides, the study develops a rapid HPLC method for quality control of larotaxel liposomes.
Chromatography, High Pressure Liquid ; Liposomes ; Magnetic Resonance Spectroscopy ; Taxoids

Objective To investigate the prevalence of primary teeth caries and oral hygiene status of preschool children in Kunming.Methods 6958 children aged 3-5 years from 30 kindergartens in Kunming were randomly selected for this study.The reserch of caries prevalence rate and soft dirt were investigated.Results The caries prevalence rate and the mean decayed,missing and filled teeth (XDMFT) values in primary teeth were 58.68％and 2.61 respectively.We can see the difference of significant between Dental caries prevalence and mean debris index simplified ( DI - S) scores between age groups, and there was no statistical significance of the same index between sex. There was no correlation between the investigation of dental caries and oral hygiene status. Conclusion The caries prevalence rate in 3-5 year-old children in the downtown area of Kunming city is very high,pointing out that preventive treatment against primary teeth caries should be strengthened.

BACKGROUND:Bio-Oss bone substitutes have been shown to prevent bone resorption by slowing bone resorption,reducing bone resorption,and restoring the height of the alveolar ridge.However,most clinical studies focus on the efficacy within 1-3 months.OBJECTIVE:To compare the effects of two kinds of bone substitutes on the height of alveolar ridge and the periodontal tissue health status after implantation into the extraction socket of the wisdom tooth.METHODS:Forty patients with impacted mandibular teeth were randomly divided into two groups:Bio-Oss Collagen material was implanted in experimental group (n=20),and Bio-Oss bone replacement materials in control group (n=20).Cone-beam CT was retrospectively reviewed at 1,3 and 12 months after implantation.Alveolar bone height,bone changes and the second molars mobility were examined.Meanwhile,healing status of tooth extraction and gingival mucosa as well as the material spills were observed.RESULTS AND CONCLUSION:(1) At 1 month after implantation,the gingival mucosa of both groups healed well without swelling.There was no spillover in the experimental group,while there were two cases of bone material spill in the control group.No tissues generated in the extraction socket and tooth loosening was observed in both groups.(2) At 3 months after implantation,the materials gradually degraded with no swelling and with generation of partial bone tissues in the experimental group,and the tooth mobility was improved.In the control group,there was also no swelling in the gums,and the materials degraded partially,but there was no presence of new bone and no improvement in the tooth mobility.(3) At 12 months after implantation,there was no swelling in the gums of the experimental group,obvious new bone tissues formed in the second molar with the presence of bone trabecula.The new bone tissues were integrated with the surrounding bone tissues.The crest of the alveolar ridge was located about 3 mm below the enamel cementum,the tooth mobility was restored to the level before extraction,and the chewing function recovered.In the control group,there was no swelling in the gums,and new bone tissues formed in the distal part of the molar,but the trabecular arrangement was not aligned.The crest of the alveolar was located about 3 mm below the enamel cementum,the tooth mobility returned to the pre-extraction level,and the chewing function was normal.(4) The height of the alveolar bone at 1 and 3 months after implantation was significantly higher in the experimental group than the control group (P ＜ 0.01),while there was no significant difference between the two groups at 12 months after implantation.To conclude,implantation of Bio-Oss Collagen immediately after removal of the impacted wisdom tooth of the mandible is beneficial to alveolar bone height and bone quality recovery,and significantly improves the periodontal health of the second molar,but the long-term effect needs further observation.

In order to explore the effect of abendazole sulfoxide-loaded thermo-sensitive hydrogel (ABZSO/PLGA-PEG-PL-GA) on alveolar hydatid cysts,the viable protoscoleces incubated in vitro with ABZSO/PLGA-PEG-PLGA (20,40,80 μg/mL),ABZSO (40 μg/mL),PLGA-PEG-PLGA and the blank control,respectively,and the viable protoscoleces were counted.The morphological of the alveolar hydatid cysts or protoscoleces in each group were observed by scanning electron microscop(SEM).After the rats infected with alveolar hydatid cysts having been treated,the sizes of the alveolar hydatid cysts were observed.When the alveolar hydatid cysts incubated in different drug group in 18 days,the percentage of viable protoscoleces in ABZSO/PLGA-PEG-PLGA (40μg/mL) group was lower than that of ABZSO (40 μg/mL) group.Results of SEM showed that the protoscoleces in the ABZSO/PLGA-PEG-PLGA (80 μg/mL) group were seriously damaged.The in vivo study demonstrated the anti-alveolar hydatid cysts efficacy of ABZSO/PLGA-PEG-PLGA (4 mg/mL) group was better than the other groups.The anti-alveolar hydatid cysts efficacy of ABZSO/PLGA-PEG-PLGA is evident.