ObjectiveThis study aims to systematically analyze the blood-absorbed components and metabolic profiles of Xiebaisan（XBS） in normal and chronic bronchitis （CB） mice using ultra performance liquid chromatography-quadrupole-electrostatic field orbitrap high resolution mass spectrometry（UPLC-Q-Exactive Orbitrap MS）， while comparing differences between the two states. MethodsThirty female BABL/c mice were randomly divided into the normal group， the normal drug administration group， the CB group， the CB drug administration group and the dexamethasone group， with 6 mice in each group. The CB mouse model was established by inducing with ovalbumin （OVA）. The mice in the normal drug administration group and the CB drug administration group started to be gavaged with XBS（13.2 g·kg^-1） from the 21^st day， and the dexamethasone group mice were simultaneously gavaged with dexamethasone （0.5 mg·kg^-1） until the end of the 35^th day of the experiment. Subsequently， serum samples were collected and evaluated for their efficacy， based on the pharmacological evaluation indicators， to determine the efficacy of XBS in treating CB. Then the UPLC-Q-Exactive Orbitrap MS was employed to identify and analyze the chemical constituents， blood-absorbed components， and metabolites of XBS. Chemometric analysis was conducted to reveal metabolic profile differences under "dual states". Concurrently， Real-time PCR technology was utilized to detect the expression levels of key liver metabolic enzymes CYP2E1， CYP3A1， UGT1A1， and UGT1A6. ResultsA total of 28 prototype components and 158 metabolites （including 48 phase Ⅰ metabolites and 110 phase Ⅱ metabolites） of XBS were unambiguously identified in the serum of normal mice. Additionally， a comprehensive characterization was performed on a total of 32 prototype components and 178 metabolites （including 50 phase Ⅰ metabolites and 128 phase Ⅱ metabolites） of XBS in the serum of CB mice. Among them， 27 prototype components were detected in both states， including 12 flavonoids， 2 alkaloids， 3 triterpenes， 4 organic acids， 3 amides， 1 stilbene and 2 other compounds. The chemometrics analysis revealed no significant difference in the prototype components and metabolites of XBS between normal and CB mice； however， there was a significant increase in the in-vivo exposure of XBS in CB mice. Compared to normal mice， the levels of phase Ⅰ metabolites such as oxidation， reduction and methylation of blood components of XBS as well as phase Ⅱ metabolites of glucuronidation showed significant changes in CB mice. Real-time PCR further confirmed that these alterations were attributed to the upregulation of CYP2E1 （P<0.05）， CYP3A1 （P>0.05）， UGT1A1 （P<0.01） and UGT1A6 （P<0.01） enzymes expression in the liver of CB mice. ConclusionThis study elucidated the disparities in the levels of the blood-absorbed components and metabolic profiles of XBS in normal and CB mice， especially in oxidation， reduction， methylation in phase Ⅰ metabolism and glucoaldehyde acidification in phase Ⅱ metabolism. And there are related to the differences in the expression levels of phase Ⅰ and phase Ⅱ metabolic enzymes CYP2E1， CYP3A1， UGT1A1 and UGT1A6 in the liver.

ObjectiveTo establish background data for a 90-day feeding trial of SD rats to ensure the reliability of research data. MethodsBackground data from six independent 90-day feeding trials of SD rats conducted by the National Center for Safety Evaluation of Drugs from 2020 to 2023 were summarized. These studies involved a blank control group of 120 SPF-grade 4-week-old SD rats, with an equal number of males and females, which were only given standard full-nutrient pelleted rat feed. After the quarantine period, the animals were observed for an additional 90 days, followed by intraperitoneal injection of Zoletil (50 mg/mL) for anesthesia, blood sampling, euthanasia, and necropsy. By analyzing the data from the blank control group, a relevant background database for SD rats was established. ResultsBoth male and female rats exhibited steady weight gain, with a more pronounced increase in male rats. Within 90 days, the average body weight of male and female rats increased to over 500 g and 300 g, respectively. Three weeks later, the average daily food intake of male rats stabilized at approximately 25~28 g per rat, while that of female rats remained stable at approximately 16~19 g per rat. The food utilization rate of all animals gradually decreased from the first week of the experiment. In the white blood cell (WBC) differential count results, significant differences were observed in the counts of WBCs, neutrophils (Neut), lymphocytes (Lymph), and monocytes (Mono) between males and females (P<0.001). However, there were no significant differences in the percentages of neutrophil (%Neut), lymphocyte (%Lymph), and monocyte (%Mono) between the sexes (P>0.05). The average red blood cell count (RBC), hemoglobin concentration (HGB), hematocrit (HCT), platelet count (PLT), prothrombin time (PT), and activated partial thromboplastin time (APTT) were higher in male animals than in female animals (P<0.05). The average values of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), creatine phosphokinase (CK), lactate dehydrogenase (LDH), glucose (GLU), and triglyceride (TG) in male rats were higher than those in female rats (P<0.05). The urinary pH range for male animals was 5.0 to 8.5, while for female animals it was 6.5 to 9.0. The majority of male animals had a urinary specific gravity lower than 1.020, and the majority of female animals had a urinary specific gravity lower than 1.015. The weights of various organs (excluding the adrenal glands and reproductive organs) in male animals were heavier than those in female animals (P<0.001), while the organ/body weight ratios (excluding the kidneys and reproductive organs) of female animals were higher than those of male animals (P<0.001). ConclusionThis study summarizes the background reference ranges for body weight, food intake, hematology, and serum biochemistry indicators in SPF-grade SD rats in the untreated control group from six 90-day feeding trials conducted by the National Center for Safety Evaluation of Drugs. It provides important reference data for related research. By summarizing the background and spontaneous histopathological changes in rats, this study aids in the standardization and normalization of subsequent research, as well as in the evaluation and analysis of abnormal results.

Protrusive facial deformities, characterized by the forward displacement of the teeth and/or jaws beyond the normal range, affect a considerable portion of the population. The manifestations and morphological mechanisms of protrusive facial deformities are complex and diverse, requiring orthodontists to possess a high level of theoretical knowledge and practical experience in the relevant orthodontic field. To further optimize the correction of protrusive facial deformities, this consensus proposes that the morphological mechanisms and diagnosis of protrusive facial deformities should be analyzed and judged from multiple dimensions and factors to accurately formulate treatment plans. It emphasizes the use of orthodontic strategies, including jaw growth modification, tooth extraction or non-extraction for anterior teeth retraction, and maxillofacial vertical control. These strategies aim to reduce anterior teeth and lip protrusion, increase chin prominence, harmonize nasolabial and chin-lip relationships, and improve the facial profile of patients with protrusive facial deformities. For severe skeletal protrusive facial deformities, orthodontic-orthognathic combined treatment may be suggested. This consensus summarizes the theoretical knowledge and clinical experience of numerous renowned oral experts nationwide, offering reference strategies for the correction of protrusive facial deformities.
Humans ; Orthodontics, Corrective/methods* ; Consensus ; Malocclusion/therapy* ; Patient Care Planning ; Cephalometry

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

Objective To explore the preference of medical staff in public hospitals for various incentive factors,and to provide theoretical basis for the hospital to formulate a reasonable incentive system and stimulate the enthusiasm of medical staff.Methods Based on the discrete choice experiment,it was conducted from March 2023 to June 2023,through the method of multistage stratified random sampling,the medical staff of a general hospital,a Traditional Chinese Medical Hospital and a maternal and child health hospital in one city in the east,west,south,north and middle of Hainan Province were investigated by questionnaire,and analyzed their incentive preference and willingness to pay by using the mixed logit model.Results All the six attributes have significant influence on medical staff's incentive preference,among which,medical staff prefer to choose the incentive effect brought by the annual salary of 350 000 yuan,good working atmosphere and working intensity of 8 hours,while hospital development has little influence on incentive preference.Among the non-economic factors,when the working atmosphere changes from depression to good,they are willing to get an annual salary of 168 305.4 yuan less,while when the hospital development changes from nothing to good,they are only willing to get an annual salary of 12 433.14 yuan less.Conclusion According to the different incentive needs of medical staff,it is more helpful to formulate accurate incentive schemes and adopt economic and non-economic incentive means to stabilize the hospital talent team and improve work enthusiasm.

Objective To explore the preference of medical staff in public hospitals for various incentive factors,and to provide theoretical basis for the hospital to formulate a reasonable incentive system and stimulate the enthusiasm of medical staff.Methods Based on the discrete choice experiment,it was conducted from March 2023 to June 2023,through the method of multistage stratified random sampling,the medical staff of a general hospital,a Traditional Chinese Medical Hospital and a maternal and child health hospital in one city in the east,west,south,north and middle of Hainan Province were investigated by questionnaire,and analyzed their incentive preference and willingness to pay by using the mixed logit model.Results All the six attributes have significant influence on medical staff's incentive preference,among which,medical staff prefer to choose the incentive effect brought by the annual salary of 350 000 yuan,good working atmosphere and working intensity of 8 hours,while hospital development has little influence on incentive preference.Among the non-economic factors,when the working atmosphere changes from depression to good,they are willing to get an annual salary of 168 305.4 yuan less,while when the hospital development changes from nothing to good,they are only willing to get an annual salary of 12 433.14 yuan less.Conclusion According to the different incentive needs of medical staff,it is more helpful to formulate accurate incentive schemes and adopt economic and non-economic incentive means to stabilize the hospital talent team and improve work enthusiasm.

Objective To explore the preference of medical staff in public hospitals for various incentive factors,and to provide theoretical basis for the hospital to formulate a reasonable incentive system and stimulate the enthusiasm of medical staff.Methods Based on the discrete choice experiment,it was conducted from March 2023 to June 2023,through the method of multistage stratified random sampling,the medical staff of a general hospital,a Traditional Chinese Medical Hospital and a maternal and child health hospital in one city in the east,west,south,north and middle of Hainan Province were investigated by questionnaire,and analyzed their incentive preference and willingness to pay by using the mixed logit model.Results All the six attributes have significant influence on medical staff's incentive preference,among which,medical staff prefer to choose the incentive effect brought by the annual salary of 350 000 yuan,good working atmosphere and working intensity of 8 hours,while hospital development has little influence on incentive preference.Among the non-economic factors,when the working atmosphere changes from depression to good,they are willing to get an annual salary of 168 305.4 yuan less,while when the hospital development changes from nothing to good,they are only willing to get an annual salary of 12 433.14 yuan less.Conclusion According to the different incentive needs of medical staff,it is more helpful to formulate accurate incentive schemes and adopt economic and non-economic incentive means to stabilize the hospital talent team and improve work enthusiasm.

Objective To explore the preference of medical staff in public hospitals for various incentive factors,and to provide theoretical basis for the hospital to formulate a reasonable incentive system and stimulate the enthusiasm of medical staff.Methods Based on the discrete choice experiment,it was conducted from March 2023 to June 2023,through the method of multistage stratified random sampling,the medical staff of a general hospital,a Traditional Chinese Medical Hospital and a maternal and child health hospital in one city in the east,west,south,north and middle of Hainan Province were investigated by questionnaire,and analyzed their incentive preference and willingness to pay by using the mixed logit model.Results All the six attributes have significant influence on medical staff's incentive preference,among which,medical staff prefer to choose the incentive effect brought by the annual salary of 350 000 yuan,good working atmosphere and working intensity of 8 hours,while hospital development has little influence on incentive preference.Among the non-economic factors,when the working atmosphere changes from depression to good,they are willing to get an annual salary of 168 305.4 yuan less,while when the hospital development changes from nothing to good,they are only willing to get an annual salary of 12 433.14 yuan less.Conclusion According to the different incentive needs of medical staff,it is more helpful to formulate accurate incentive schemes and adopt economic and non-economic incentive means to stabilize the hospital talent team and improve work enthusiasm.

Objective To explore the preference of medical staff in public hospitals for various incentive factors,and to provide theoretical basis for the hospital to formulate a reasonable incentive system and stimulate the enthusiasm of medical staff.Methods Based on the discrete choice experiment,it was conducted from March 2023 to June 2023,through the method of multistage stratified random sampling,the medical staff of a general hospital,a Traditional Chinese Medical Hospital and a maternal and child health hospital in one city in the east,west,south,north and middle of Hainan Province were investigated by questionnaire,and analyzed their incentive preference and willingness to pay by using the mixed logit model.Results All the six attributes have significant influence on medical staff's incentive preference,among which,medical staff prefer to choose the incentive effect brought by the annual salary of 350 000 yuan,good working atmosphere and working intensity of 8 hours,while hospital development has little influence on incentive preference.Among the non-economic factors,when the working atmosphere changes from depression to good,they are willing to get an annual salary of 168 305.4 yuan less,while when the hospital development changes from nothing to good,they are only willing to get an annual salary of 12 433.14 yuan less.Conclusion According to the different incentive needs of medical staff,it is more helpful to formulate accurate incentive schemes and adopt economic and non-economic incentive means to stabilize the hospital talent team and improve work enthusiasm.