Enamel demineralization, the formation of white spot lesions, is a common issue in clinical orthodontic treatment. The appearance of white spot lesions not only affects the texture and health of dental hard tissues but also impacts the health and aesthetics of teeth after orthodontic treatment. The prevention, diagnosis, and treatment of white spot lesions that occur throughout the orthodontic treatment process involve multiple dental specialties. This expert consensus will focus on providing guiding opinions on the management and prevention of white spot lesions during orthodontic treatment, advocating for proactive prevention, early detection, timely treatment, scientific follow-up, and multidisciplinary management of white spot lesions throughout the orthodontic process, thereby maintaining the dental health of patients during orthodontic treatment.
Humans ; Consensus ; Dental Caries/etiology* ; Dental Enamel/pathology* ; Tooth Demineralization/etiology* ; Tooth Remineralization

Early correction of childhood malocclusion is timely managing morphological, structural, and functional abnormalities at different dentomaxillofacial developmental stages. The selection of appropriate imaging examination and comprehensive radiological diagnosis and analysis play an important role in early correction of childhood malocclusion. This expert consensus is a collaborative effort by multidisciplinary experts in dentistry across the nation based on the current clinical evidence, aiming to provide general guidance on appropriate imaging examination selection, comprehensive and accurate imaging assessment for early orthodontic treatment patients.
Humans ; Malocclusion/diagnostic imaging* ; Child ; Consensus

The repair of the periodontal membrane is essential for the successful management of periodontal disease and dental trauma. Emdogain^® (EMD) is widely used in periodontal therapy due to its ability to promote repair. Despite substantial research, the cellular and molecular mechanisms underlying EMD's effects, particularly at the single-cell resolution, remain incompletely understood. This study established a delayed tooth replantation model in rats to investigate these aspects. Tooth loss rate and degree of loosening were evaluated at 4 and 8 weeks. Micro-CT, HE staining, TRAP staining, and immunofluorescence staining were evaluated to assess EMD's efficacy. Single-cell sequencing analyses generated single-cell maps that explored enrichment pathways, cell communication, and potential repair mechanisms. Findings indicated that EMD could reduce the rate of tooth loss, promote periodontal membrane repair, and reduce root and bone resorption. Single-cell analysis revealed that EMD promotes the importance of Vtn+ fibroblasts, enhancing matrix and tissue regeneration functions. Additionally, EMD stimulated osteogenic pathways, reduced osteoclastic activity, and promoted angiogenesis-related pathways, particularly bone-related H-type vessel expression in endothelial cells. Gene modules associated with angiogenesis, osteogenesis, and odontoblast differentiation were identified, suggesting EMD might facilitate osteogenesis and odontoblast differentiation by upregulating endothelium-related genes. Immune cell analysis indicated that EMD did not elicit a significant immune response. Cell communication analysis suggested that EMD fostered pro-regenerative networks driven by interactions between mesenchymal stem cells, fibroblasts, and endothelial cells. In conclusion, EMD proves to be an effective root surface therapy agent that supports the restoration of delayed replantation teeth.
Animals ; Tooth Replantation/methods* ; Rats ; Dental Enamel Proteins/pharmacology* ; Single-Cell Analysis ; Rats, Sprague-Dawley ; X-Ray Microtomography ; Osteogenesis/drug effects* ; Male ; Periodontal Ligament/drug effects*

Objective This study aimed to investigate the effect of acupoint injection on glycometabolism in patients with Polycystic ovary syndrome(PCOS).Methods Eighty patients who were newly diagnosed with polycystic ovary syndrome(PCOS)in our hospital were randomly allocated into two groups:a control group and a treatment group,with 40 cases in each group.The two groups were treated with dietary exercise lifestyle and dietary exercise lifestyle+acupoint injection intervention for 3 months,respectively.The basal disposition index(DI0),early-phase disposition index(DI30),and total disposition index(DI120)represented β-cell function at fasting,early phase,and 120 minutes during the oral glucose tolerance test(OGTT).The homeostatic model assessment for insulin resistance(HOMA-IR)and the M value obtained from the high insulin-euglycemic clamp(HEC)test indicated insulin sensitivity.The changes in anthropometric indicators[waist-to-hip ratio(WHR),body mass index(BMI)],blood glucose and insulin levels[fasting blood glucose(Glu0),2 h post-OGTT blood glucose(Glu120),fasting insulin(Ins0),2 h post-OGTT insulin(Ins120),and glycated hemoglobin A1c(HbA1c)],sex hormones[free testosterone index(FAI),luteinizing hormone/follicle-stimulating hormone(LH/FSH)],pancreatic β-cell function and insulin sensitivity,oxidative stress[malondialdehyde(MDA),Cu/Zn superoxide dismutase(Cu/Zn SOD),glutathione peroxidase 1(GPX1)],and inflammation[interleukin-6(IL-6),interleukin-1β(IL-1β),tumor necrosis factor-α(TNF-α)]were compared before and after treatment,and safety observations were conducted.Results The baseline levels of the two groups were consistent(P>0.05);after treatment,the Glu0,Ins0,HOMA-IR,MDA,IL-6,IL-1β,and TNF-α in the treatment group were significantly reduced compared to those observed in the control group(P<0.05,P<0.01),while DI0,DI120,M value,Cu/Zn SOD,and GPX1 were higher than those in the control group(P<0.05,P<0.01).However,there were no statistically significant differences in anthropometric indicators,sex hormones,and other glucose metabolism indicators(P>0.05),and the incidence of adverse reactions between the two groups was not statistically significant(P>0.05).Conclusion Acupoint injection can alleviate glycometabolism in patients with PCOS of kidney deficiency and blood stasis to a certain extent,improve systemic oxidative stress and inflammatory status,and provide a possible external treatment method in traditional Chinese medicine for these patients.

When conducting extravehicular activities under low-gravity conditions like on the moon,the weight of the spacesuit is one of the loads that human body has to bear.The centroid position of the spacesuit will affect the motion control of the human-spacesuit system.In order to reveal the influence of the centroid position of the lunar spacesuit on human motion under lunar-gravity,a suspended 1/6 gravity simulation system was used for the experiment.When subjects were under different load centroids which include front and back on sagittal plane,left and right on coronal plane,up and down on cross-section plane,near to coordinate origin,the postures and plantar pressures of subjects during three typical movements:standing,single-knee standing and walking were captured.Inverse dynamics solution is adopted to analyze the joint torques of human body in above conditions.Combined with the subjective evaluation,the appropriate load centroid area was analyzed by comparative.The experiment shows that,human is non-sensitive to the up and down change of load centroid,the after is back change,the front and right load centroid are the mostly avoided.The results obtained by this study will provide a reference for the layout design of the lunar spacesuit.

Seven novel acylphloroglucinol-sesquiterpenoid adducts, designated as dryatraols J-P (1-7), were isolated from the rhizomes of Dryopteris atrata (Wall. ex Kunze) Ching. The structures, including absolute configurations, were elucidated using comprehensive spectroscopic data, calculated ¹³C Nuclear Magnetic Resonance-Diastereotopic Probability Assignment Plus (¹³C NMR-DP4+) probability analysis, and ECD calculations. These structures represent a rare subclass of carbon skeleton of acylphloroglucinol-sesquiterpenoid adducts with a furan ring connecting the acylphloroglucinol and sesquiterpenoid moieties. Notably, compounds 1-6 are the first reported examples of acylphloroglucinol-sesquiterpenoid adducts with dimeric acylphloroglucinol incorporated into the aristolane- or rulepidanol-type sesquiterpene, while compound 7 features a hydroxylated monomeric acylphloroglucinol motif. A preliminary evaluation of their antiviral activities revealed that compounds 1-6 exhibited more potent activities against respiratory syncytial virus (RSV) with IC₅₀ values ranging from 0.75 to 3.12 μmol·L^-1 compared to the positive control (ribavirin).
Antiviral Agents/isolation & purification* ; Phloroglucinol/isolation & purification* ; Sesquiterpenes/isolation & purification* ; Molecular Structure ; Dryopteris/chemistry* ; Respiratory Syncytial Viruses/drug effects* ; Humans ; Rhizome/chemistry* ; Drugs, Chinese Herbal/pharmacology*

Objective:To investigate the iodine nutrition level and the prevalence of thyroid nodules in pregnant women in Hubei Province, and to provide a basis for prevention and treatment of iodine deficiency disorders.Methods:According to the requirements of the National Iodine Deficiency Disorders Monitoring Program (2016 Edition), a cross-sectional survey of iodine nutrition status of pregnant women ( n = 321) was conducted from July to October 2020 in two mountainous counties (Tongcheng County and Xingshan County) and two plain counties (Liangzihu District and Xinzhou District) in Hubei Province. Among them, there were 43, 114, and 164 pregnant women in the early, middle, and late stages of pregnancy, respectively. Edible salt samples and once random urine samples were collected to detect salt iodine and urinary iodine, and thyroid ultrasound was performed to calculate the detection rate of thyroid nodules. Results:The coverage rate of iodized salt, qualified rate of iodized salt, and consumption rate of qualified iodized salt in Hubei Province were 99.69% (320/321), 95.94% (307/320) and 95.64% (307/321), respectively. The median urinary iodine level for pregnant women was 164.80 μg/L. Among them, the median urinary iodine levels in Liangzihu District, Tongcheng County, Xinzhou District, and Xingshan County were 175.90, 178.25, 155.80 and 143.00 μg/L, respectively. There was a statistically significant difference in urinary iodine levels among different regions ( H = 8.51, P = 0.037). The median urinary iodine levels of pregnant women in the early, middle, and late stages of pregnancy were 187.20, 144.45, and 172.05 μg/L, respectively. There was no statistically significant difference in urinary iodine levels among pregnant women in different stages of pregnancy ( H = 2.94, P = 0.230). Urinary iodine < 150, 150 - < 250, 250 - < 500, ≥500 μg/L accounted for 45.48% (146/321), 33.33% (107/321), 19.63% (63/321), 1.56% (5/321), respectively. The detection rate of thyroid nodules was 16.82% (54/321), and the goiter rate was 0.93% (3/321). Conclusions:In 2020, Hubei Province is in an appropriate state of iodine, and there are still a considerable proportion of pregnant women in a state of iodine deficiency. The detection rate of thyroid nodules is relatively low. It is necessary to continuously monitor the iodine nutrition of pregnant women, strengthen health promotion on the hazards of iodine deficiency during pregnancy, and minimize maternal and infant health damage caused by iodine deficiency.

We surveyed tick species and their carried pathogens for three important emerging zoonotic diseases(Babesiosis,Lyme disease,and fever with thrombocytopenia syndrome)at border areas between China and Mongolia,to provide data support for the construction of a database on cross-border transmission of important tick-borne diseases and the prevention and control of zoonotic tick-borne diseases in border areas.In 2023-2024,tick samples were collected from 12 border areas along the Sino-Mongolian bor-der,and tick species were identified according to morphology and molecular biology,then tested for the pathogens of three newly emerging zoonotic diseases with real-time fluorescence quantitative PCR and conventional PCR.Positive samples were verified through gene sequencing.A total of 2 477 ticks of five genera and nine species were collected from the border areas of China and Mongolia.The dominant tick species were identified as the grassland leatherback tick,the full-groove tick,and the small glaucous-eyed tick.The overall positivity rates of ticks carrying Babesia,Lyme disease spirochetes,and fever with thrombocytopenia virus in the 12 border ar-eas were 8.32%,11.59%,and 0%,respectively.Babesia,the most widely distributed tick species,was detected in ticks at eight areas in the eastern,central,and western parts of the China-Mongolia border.This species was found in eastern,central,and western ports along the Sino-Mongolian border;showed tick positivity rates of 0.37%-38.82%;and was most frequently carried by full-groove hard ticks.Spirochetes of Lyme disease were the next most widely distributed,and were detected in samples from four port areas,primarily in the eastern ports along the Sino-Mongolian border;97.2%of positive samples were detected in full-groove hard ticks.Zoonotic Babe-sia spp.were widely distributed in the border crossing areas of China and Mongolia,and included five species of Babesia microti,Ba-besia venatorum,and Babesia divergens,whereas the Lyme disease spirochetes were prevalent mainly in the east,including five geno-types of Borreliella garinii,Borreliella afzelii,and Borrelia burgdorferi sensu stricto.Co-infection with Babesia and Lyme disease spiro-chetes was present in hard ticks throughout the groove,and co-infected samples accounted for 74.27%of Babesia positive and 53.31%of Lyme disease positive samples.Thus,Babesia and Lyme disease spirochetes were found to be important tick-borne emerging zoo-notic pathogens in the Sino-Mongolian border crossing areas,the infected ticks were primarily full-grooved hard ticks,and co-infections were found.

Objective This study aimed to investigate the effect of acupoint injection on glycometabolism in patients with Polycystic ovary syndrome(PCOS).Methods Eighty patients who were newly diagnosed with polycystic ovary syndrome(PCOS)in our hospital were randomly allocated into two groups:a control group and a treatment group,with 40 cases in each group.The two groups were treated with dietary exercise lifestyle and dietary exercise lifestyle+acupoint injection intervention for 3 months,respectively.The basal disposition index(DI0),early-phase disposition index(DI30),and total disposition index(DI120)represented β-cell function at fasting,early phase,and 120 minutes during the oral glucose tolerance test(OGTT).The homeostatic model assessment for insulin resistance(HOMA-IR)and the M value obtained from the high insulin-euglycemic clamp(HEC)test indicated insulin sensitivity.The changes in anthropometric indicators[waist-to-hip ratio(WHR),body mass index(BMI)],blood glucose and insulin levels[fasting blood glucose(Glu0),2 h post-OGTT blood glucose(Glu120),fasting insulin(Ins0),2 h post-OGTT insulin(Ins120),and glycated hemoglobin A1c(HbA1c)],sex hormones[free testosterone index(FAI),luteinizing hormone/follicle-stimulating hormone(LH/FSH)],pancreatic β-cell function and insulin sensitivity,oxidative stress[malondialdehyde(MDA),Cu/Zn superoxide dismutase(Cu/Zn SOD),glutathione peroxidase 1(GPX1)],and inflammation[interleukin-6(IL-6),interleukin-1β(IL-1β),tumor necrosis factor-α(TNF-α)]were compared before and after treatment,and safety observations were conducted.Results The baseline levels of the two groups were consistent(P>0.05);after treatment,the Glu0,Ins0,HOMA-IR,MDA,IL-6,IL-1β,and TNF-α in the treatment group were significantly reduced compared to those observed in the control group(P<0.05,P<0.01),while DI0,DI120,M value,Cu/Zn SOD,and GPX1 were higher than those in the control group(P<0.05,P<0.01).However,there were no statistically significant differences in anthropometric indicators,sex hormones,and other glucose metabolism indicators(P>0.05),and the incidence of adverse reactions between the two groups was not statistically significant(P>0.05).Conclusion Acupoint injection can alleviate glycometabolism in patients with PCOS of kidney deficiency and blood stasis to a certain extent,improve systemic oxidative stress and inflammatory status,and provide a possible external treatment method in traditional Chinese medicine for these patients.

We surveyed tick species and their carried pathogens for three important emerging zoonotic diseases(Babesiosis,Lyme disease,and fever with thrombocytopenia syndrome)at border areas between China and Mongolia,to provide data support for the construction of a database on cross-border transmission of important tick-borne diseases and the prevention and control of zoonotic tick-borne diseases in border areas.In 2023-2024,tick samples were collected from 12 border areas along the Sino-Mongolian bor-der,and tick species were identified according to morphology and molecular biology,then tested for the pathogens of three newly emerging zoonotic diseases with real-time fluorescence quantitative PCR and conventional PCR.Positive samples were verified through gene sequencing.A total of 2 477 ticks of five genera and nine species were collected from the border areas of China and Mongolia.The dominant tick species were identified as the grassland leatherback tick,the full-groove tick,and the small glaucous-eyed tick.The overall positivity rates of ticks carrying Babesia,Lyme disease spirochetes,and fever with thrombocytopenia virus in the 12 border ar-eas were 8.32%,11.59%,and 0%,respectively.Babesia,the most widely distributed tick species,was detected in ticks at eight areas in the eastern,central,and western parts of the China-Mongolia border.This species was found in eastern,central,and western ports along the Sino-Mongolian border;showed tick positivity rates of 0.37%-38.82%;and was most frequently carried by full-groove hard ticks.Spirochetes of Lyme disease were the next most widely distributed,and were detected in samples from four port areas,primarily in the eastern ports along the Sino-Mongolian border;97.2%of positive samples were detected in full-groove hard ticks.Zoonotic Babe-sia spp.were widely distributed in the border crossing areas of China and Mongolia,and included five species of Babesia microti,Ba-besia venatorum,and Babesia divergens,whereas the Lyme disease spirochetes were prevalent mainly in the east,including five geno-types of Borreliella garinii,Borreliella afzelii,and Borrelia burgdorferi sensu stricto.Co-infection with Babesia and Lyme disease spiro-chetes was present in hard ticks throughout the groove,and co-infected samples accounted for 74.27%of Babesia positive and 53.31%of Lyme disease positive samples.Thus,Babesia and Lyme disease spirochetes were found to be important tick-borne emerging zoo-notic pathogens in the Sino-Mongolian border crossing areas,the infected ticks were primarily full-grooved hard ticks,and co-infections were found.