This paper summarizes professor BAI Yanping's clinical experience in treating rosacea. It is believed that stagnant heat in cutaneous collaterals serves as the core pathogenesis of rosacea， and the interbinding of static blood and heat as well as blockage of cutaneous collaterals constitute the key pathological links. The core therapeutic principles consist of nourishing blood， activating blood circulation to resolve stasis， clearing heat， relieving stagnation and unblocking collaterals. In clinic， Wenqing Decoction （温清饮） is adopted as the basic formula， with flexible modifications according to distinct clinical syndromes and stages of rosacea. Based on clinical syndromes， for erythematotelangiectatic rosacea， the treatment should focus on activating blood to unblock collaterals， clearing heat and cooling blood； for papulopustular rosacea， the treatment should focus on clearing heat and resolving toxins， and resolving stasis and dissipating masses； for hypertrophic phymatous rosacea， the treatment should simultaneously softening hard masses， dissipating stagnation， nourishing blood and moisturizing the skin； for ocular rosacea， the treatment should prioritize clearing liver heat to improve eyesight， unblocking orifices and eliminating heat. Based on the stages， in acute phase， heat-clearing， detoxifying and blood-cooling therapies are emphasized； for protracted chronic phase， concurrent regulation of static blood and heat plus blood-nourishing and collateral-unblocking methods are applied； the consolidation stage targets invigorating the spleen and replenishing qi to strengthen vital resistance and eliminate pathogenic factors. Meanwhile， precise compatibility of aromatic medicinals， blood-level medicinals and channel-guiding medicinals is highly valued. The therapy should balance systemic regulation and local lesion care， and combine internal and external treatment， which may provides clinical references for TCM intervention of rosacea.

This paper summarizes professor BAI Yanping's clinical experience in treating rosacea. It is believed that stagnant heat in cutaneous collaterals serves as the core pathogenesis of rosacea， and the interbinding of static blood and heat as well as blockage of cutaneous collaterals constitute the key pathological links. The core therapeutic principles consist of nourishing blood， activating blood circulation to resolve stasis， clearing heat， relieving stagnation and unblocking collaterals. In clinic， Wenqing Decoction （温清饮） is adopted as the basic formula， with flexible modifications according to distinct clinical syndromes and stages of rosacea. Based on clinical syndromes， for erythematotelangiectatic rosacea， the treatment should focus on activating blood to unblock collaterals， clearing heat and cooling blood； for papulopustular rosacea， the treatment should focus on clearing heat and resolving toxins， and resolving stasis and dissipating masses； for hypertrophic phymatous rosacea， the treatment should simultaneously softening hard masses， dissipating stagnation， nourishing blood and moisturizing the skin； for ocular rosacea， the treatment should prioritize clearing liver heat to improve eyesight， unblocking orifices and eliminating heat. Based on the stages， in acute phase， heat-clearing， detoxifying and blood-cooling therapies are emphasized； for protracted chronic phase， concurrent regulation of static blood and heat plus blood-nourishing and collateral-unblocking methods are applied； the consolidation stage targets invigorating the spleen and replenishing qi to strengthen vital resistance and eliminate pathogenic factors. Meanwhile， precise compatibility of aromatic medicinals， blood-level medicinals and channel-guiding medicinals is highly valued. The therapy should balance systemic regulation and local lesion care， and combine internal and external treatment， which may provides clinical references for TCM intervention of rosacea.

The concept of "qi deficiency with stagnation" refers to a pathological state characterized by the depletion of primordial qi， impaired qi transformation， and the development of internal stagnation. Under the cyclic chemotherapy regimen in oncology， chemotherapy-induced myelosuppression follows a progressive pathological course from qi deficiency to increasing stagnation. This sequential evolution from mild to severe myelosuppression closely aligns with the dynamic syndrome differentiation and treatment framework of "qi deficiency with stagnation". "Qi deficiency" reflects the gradual depletion of qi， blood， and essence， while "stagnation" refers to the accumulation of phlegm， turbid dampness， and blood stasis. These two components interact reciprocally， forming a vicious cycle where deficiency leads to stagnation， and stagnation further damages the healthy qi. In the early stage of mild myelosuppression， chemotoxicity begins to accumulate in the bone marrow， leading to qi consumption， blood deficiency， yin injury， and the gradual formation of turbid phlegm and damp stagnation. In the advanced stage of severe myelosuppression， the accumulation of toxicity causes qi sinking， exhaustion of essence， and marrow depletion， along with blood stasis obstructing the collaterals. Treatment strategies should be based on syndrome differentiation， with an emphasis on assessing the severity of the condition， balancing deficiency and excess， and achieving both symptomatic relief and root cause resolution.

Objective To construct intrauterine adhesion (IUA) mouse models induced by two different concentrations of ethanol injury, compare the phenotypes, and optimize a more stable IUA modeling method. Methods Twenty 8-week-old female C57BL/6N mice were randomly divided into two groups: the 95% ethanol injury group and the 50% ethanol injury group. Using a self-control method, the left uterine horn was infused with ethanol to establish the IUA model, while the right uterine horn was infused with saline as the sham operation. Five mice from each group were euthanized on day 7 and 15 after modeling, and uterine tissues were collected. Hematoxylin-eosin (HE) staining was used to observe the endometrial pathology, and Masson staining was used to assess the degree of endometrial fibrosis. Quantitative real-time PCR was employed to detect the expression levels of fibrosis markers and pro-inflammatory factors in the uterine tissues. Results Compared to the sham operation, these two ethanol injury led to a significant reduction in elasticity of the uterus, an increase in inflammatory infiltration, and a marked increase in the degree of fibrosis on day 7 after modeling (P<0.05). The 95% ethanol injury group showed a significant decrease in endometrial thickness (P<0.05), whereas no significant change was observed in the 50% ethanol injury group when compared to the sham operation (P>0.05). The expression levels of fibrotic marker molecules collagen type Ⅳ alpha 1 chain (Col4A1), α-smooth muscle actin (α-SMA), transforming growth factor-β (TGF-β), and pro-inflammatory factors tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were significantly elevated in the 50% ethanol injury group when compared to the sham operation (P<0.05), although there was an increasing trend of the same markers in the 95% ethanol injury group, the differences were not statistically significant (P>0.05). On day 15 after modeling, the histopathological changes in both ethanol injury groups were not significant when compared to the sham operation, the expression levels of Col4A1, TGF-β, TNF-α and IL-1β remained significantly higher in the 50% ethanol injury group (P<0.05), while only IL-1β was significantly elevated in the 95% ethanol injury group (P<0.05). Conclusion Uterine infusion with 95% ethanol results in more marked histopathological changes in the IUA mouse model compared to the 50% ethanol injury group. The 95% ethanol injury model is suitable for histopathological studies. However, the 50% ethanol injury group shows higher expression levels of fibrosis markers and pro-inflammatory factors compared to the 95% ethanol injury group, suggesting that the 50% ethanol injury model is more suitable for molecular pathological study.

Thyroid masses are uncommon in children，and thyroid nodules as a result of ectopic thymus tissue are even rarer. Here a case of ectopic thymus within the thyroid gland in an 11-year-old child was presented from Peking Union Medical College Hospital. The ultrasonic imaging showed hypoechoic nodules in both lobes of the thyroid gland with dot echogenic foci. Since the ultrasonic imaging posed a malignancy risk，an ultrasound-guided fine needle aspiration biopsy was performed. The fine-needle aspiration pathology and immunohistochemistry diagnosed it as an ectopic thymus within the thyroid gland. After two years of follow-up，there were no apparent changes in the ultrasonic imaging. Accurately diagnosing thymic tissue within the thyroid gland in children is of great significance for avoiding unnecessary surgeries.

Objective:To study the impact of fluoride exposure through drinking water on the risk of hypertension among residents in Jishan County, Shanxi Province.Methods:From March to April 2023, a cluster sampling method was used to select permanent residents aged ≥18 years and residing for ≥10 years in 12 villages in drinking water-borne endemic fluorosis areas of Jishan County, Shanxi Province as the survey subjects. A questionnaire survey, physical examination, and morning urinary fluoride level testing were conducted. The least absolute shrinkage and selection operator (Lasso) regression were used to analyze the key influencing factors of hypertension. Restricted cubic spline was used to evaluate the linear relationship between urinary fluoride and hypertension. Logistic regression was used to analyze the impact of urinary fluoride on hypertension.Results:Finally, 2 453 survey subjects were included, aged (62 ± 10) years, including 1 565 patients (63.80%) with hypertension. There were significant differences in the distribution of age, gender, education level, annual household income, body mass index (BMI), and the level and distribution of urinary fluoride between hypertension group and normal blood pressure group ( P < 0.05). The Lasso regression results showed that age, education level, BMI, and urinary fluoride were the key influencing factors of hypertension, with coefficients of 1.04, - 0.12, 0.24 and 0.01, respectively. The results of the restricted cubic spline showed that there was a linear relationship between urinary fluoride and hypertension after adjusting for age, education level, and BMI ( Poverall = 0.018, Pnonlinear = 0.482). The logistic regression results showed that after adjusting for age, education level, and BMI, urinary fluoride > 4.68 mg/L was a risk factor for hypertension ( OR = 1.42, 95% CI: 1.10 - 1.84, P = 0.007). Conclusion:High urinary fluoride is a risk factor for hypertension in drinking water-borne endemic fluorosis areas of Jishan County, Shanxi Province.

Objective:To study the impact of fluoride exposure through drinking water on the risk of hypertension among residents in Jishan County, Shanxi Province.Methods:From March to April 2023, a cluster sampling method was used to select permanent residents aged ≥18 years and residing for ≥10 years in 12 villages in drinking water-borne endemic fluorosis areas of Jishan County, Shanxi Province as the survey subjects. A questionnaire survey, physical examination, and morning urinary fluoride level testing were conducted. The least absolute shrinkage and selection operator (Lasso) regression were used to analyze the key influencing factors of hypertension. Restricted cubic spline was used to evaluate the linear relationship between urinary fluoride and hypertension. Logistic regression was used to analyze the impact of urinary fluoride on hypertension.Results:Finally, 2 453 survey subjects were included, aged (62 ± 10) years, including 1 565 patients (63.80%) with hypertension. There were significant differences in the distribution of age, gender, education level, annual household income, body mass index (BMI), and the level and distribution of urinary fluoride between hypertension group and normal blood pressure group ( P < 0.05). The Lasso regression results showed that age, education level, BMI, and urinary fluoride were the key influencing factors of hypertension, with coefficients of 1.04, - 0.12, 0.24 and 0.01, respectively. The results of the restricted cubic spline showed that there was a linear relationship between urinary fluoride and hypertension after adjusting for age, education level, and BMI ( Poverall = 0.018, Pnonlinear = 0.482). The logistic regression results showed that after adjusting for age, education level, and BMI, urinary fluoride > 4.68 mg/L was a risk factor for hypertension ( OR = 1.42, 95% CI: 1.10 - 1.84, P = 0.007). Conclusion:High urinary fluoride is a risk factor for hypertension in drinking water-borne endemic fluorosis areas of Jishan County, Shanxi Province.

Thyroid masses are uncommon in children，and thyroid nodules as a result of ectopic thymus tissue are even rarer. Here a case of ectopic thymus within the thyroid gland in an 11-year-old child was presented from Peking Union Medical College Hospital. The ultrasonic imaging showed hypoechoic nodules in both lobes of the thyroid gland with dot echogenic foci. Since the ultrasonic imaging posed a malignancy risk，an ultrasound-guided fine needle aspiration biopsy was performed. The fine-needle aspiration pathology and immunohistochemistry diagnosed it as an ectopic thymus within the thyroid gland. After two years of follow-up，there were no apparent changes in the ultrasonic imaging. Accurately diagnosing thymic tissue within the thyroid gland in children is of great significance for avoiding unnecessary surgeries.

Objective:To determine the motion detection uncertainty of the real-time CybeRay ? imaging system and patient intrafractional motion with thermoplastic mask-based immobilization. Methods:Real-time CybeRay ? imaging system was used for irradiation and treatment for head phantom and patients with brain tumors. All patients were immobilized with thermoplastic masks. Real-time imaging was delivered using kilovoltage projection images during radiotherapy. The detected patient motion data was collected from 5 head phantom measurements and 27 treatment fractions of 9 brain tumor patients admitted to Kaifeng Cancer Hospital. The accuracy and uncertainty of the motion monitoring system were determined. Results:The mean and standard deviation (SD) of the detected motion in the X, Y, and Z directions for phantom were (-0.02±0.41) mm, (-0.05±0.22) mm and (0.01±0.35) mm, respectively. The detected motion in the X, Y and Z directions for patents were (-0.13±0.48) mm, (-0.05±0.48) mm and (0.11±0.36) mm, respectively. After removing the motion detection uncertainty, the actual intrafractional motion of patients were (-0.11±0.25) mm, (0±0.43) mm and (0.10±0.08) mm in three directions, respectively. Conclusions:The uncertainty of real-time imaging-based motion monitoring system of CybeRay ? is less than 0.5 mm. It is feasible to apply thermoplastic masks for brain tumor patients in clinical practice, which can provide steady immobilization and limit the SD of patient intrafractional motion within 0.5 mm. Real-time imaging-based motion monitoring system of CybeRay ? is accurate for patient motion monitoring during frameless stereotactic radiosurgery/radiotherapy.

Purpose: Prostate cancer (PCa) is an epithelial malignancy that originates in the prostate gland and is generally categorized into low, intermediate, and high-risk groups. The primary diagnostic indicator for PCa is the measurement of serum prostate-specific antigen (PSA) values. However, reliance on PSA levels can result in false positives, leading to unnecessary biopsies and an increased risk of invasive injuries. Therefore, it is imperative to develop an efficient and accurate method for PCa risk stratification. Many recent studies on PCa risk stratification based on clinical data have employed a binary classification, distinguishing between low to intermediate and high risk. In this paper, we propose a novel machine learning (ML) approach utilizing a stacking learning strategy for predicting the tripartite risk stratification of PCa. Methods: Clinical records, featuring attributes selected using the lasso method, were utilized with 5 ML classifiers. The outputs of these classifiers underwent transformation by various nonlinear transformers and were then concatenated with the lasso-selected features, resulting in a set of new features. A stacking learning strategy, integrating different ML classifiers, was developed based on these new features. Results: Our proposed approach demonstrated superior performance, achieving an accuracy of 0.83 and an area under the receiver operating characteristic curve value of 0.88 in a dataset comprising 197 PCa patients with 42 clinical characteristics. Conclusions This study aimed to improve clinicians’ ability to rapidly assess PCa risk stratification while reducing the burden on patients. This was achieved by using artificial intelligence-related technologies as an auxiliary method for diagnosing PCa.