Objective:To preliminarily explore therapeutic effects and possible molecular mechanisms of sinomenine on atopic dermatitis (AD) -like mouse models.Methods:Thirty female BALB/c mice (6 - 8 weeks old) were randomly divided into 5 groups: blank control group, model group, positive control group, topical sinomenine group, and oral sinomenine group. Except for the blank control group, all groups were subjected to repeated topical stimulation with 2,4-dinitrochlorobenzene (DNCB) on the dorsal skin to establish an AD-like mouse model. After modeling, no special treatment was given to the blank control group, the positive control group was topically treated with 100 μg of 0.1% mometasone furoate cream twice daily on the lesions, the topical sinomenine group was topically treated with 100 μl of 10 mg/ml sinomenine solution twice daily on the lesions, and the oral sinomenine group was gavaged with sinomenine solution at a dose of 100 mg·kg -1·d -1 (100 μl per dose, twice daily) . Treatments lasted for 14 days. Twelve hours after the final treatment, the severity of skin lesions in each group was assessed. Blood samples were collected via enucleation, and serum levels of interleukin (IL) -1β, IL-6, and immunoglobulin E (IgE) were measured using enzyme-linked immunosorbent assay (ELISA) . Histopathological changes in dorsal skin lesions were observed, and immunohistochemical study was performed to detect the expression levels of p38 mitogen-activated protein kinase (MAPK) and nuclear factor (NF) -κB p65 in skin tissues, expressed as the percentage of the immunopositive area. One-way analysis of variance was used for multiple group comparisons, while Tukey′s test or the Games-Howell test was applied for post-hoc comparisons between groups. Results:Compared with the blank control group, the model group exhibited epidermal hyperkeratosis with parakeratosis, thickening of the spinous layer, spongiosis, significant inflammatory cell infiltration, and prominent angiogenesis. In contrast, the positive control group, topical sinomenine group, and oral sinomenine group showed reduced spinous layer thicknesses, decreased inflammatory cell infiltration, and less pronounced angiogenesis compared to the model group. In the blank control group, model group, positive control group, topical sinomenine group, and oral sinomenine group, the severity scores of skin lesions were 0, 8.83 ± 0.75, 4.33 ± 1.08, 2.58 ± 0.49, 2.83 ± 0.93 respectively, the serum levels of IL-1β were 52.58 ± 1.72, 168.40 ± 7.23, 57.07 ± 6.39, 85.74 ± 4.15, 100.30 ± 11.55 pg/ml respectively, IL-6 levels were 86.88 ± 4.60, 215.00 ± 5.02, 79.34 ± 4.91, 127.20 ± 1.06, 149.00 ± 6.21 pg/ml respectively, IgE levels were 2 159.00 ± 176.00, 3 493.00 ± 89.61, 2 294.00 ± 158.10, 2 550.00 ± 214.70, 2 814.00 ± 119.70 μg/ml respectively, the expression levels of p38 MAPK in skin tissues were 3.03% ± 3.38%, 12.95% ± 6.89%, 2.14% ± 1.28%, 5.28% ± 3.71%, 3.85% ± 2.26% respectively, and NF-κB p65 expression levels were 0.61% ± 0.49%, 18.92% ± 6.96%, 3.77% ± 1.90%, 5.66% ± 2.28%, 6.25% ± 3.14% respectively; the differences in all the above parameters were statistically significant among groups (all P < 0.05) . Compared with the blank control group, the model group had significantly increased skin lesion severity scores, serum IL-1β, IL-6, and IgE levels, as well as elevated expression of p38 MAPK and NF-κB p65 in skin tissues (all P < 0.01) . Compared with the model group, the positive control group, topical sinomenine group, and oral sinomenine group showed significantly reduced skin lesion severity scores, decreased serum IL-1β, IL-6, and IgE levels, and lower expression of p38 MAPK and NF-κB p65 in skin tissues (all P < 0.05) . Compared with the positive control group, the topical and oral sinomenine groups exhibited further reductions in skin lesion severity scores (both P < 0.05) . Additionally, the topical sinomenine group showed significantly lower serum levels of IL-1β and IL-6 compared with the oral sinomenine group (both P < 0.05) . Conclusion:Sinomenine solution could obviously alleviate the severity of skin lesions in AD-like mouse models, likely by down-regulating the expression of IL-1β, IL-6 and IgE, inhibiting the MAPK/NF-κB signaling pathway, and thus reducing the degree of inflammation.

OBJECTIVE: While higher therapeutic doses of toxic cardiac glycosides derived from Cerbera odollam are frequently employed in cases of suicide or homicide, ongoing research is investigating the potential anticancer properties of low-concentration extracts obtained from the fruits of C. odollam. The present study aimed to determine the enhanced anticancer effects and minimize potential side effects of combining extracts from C. odollam fruits from Thailand with sorafenib against HCT116 and HepG2 cells. METHODS: The dried powder of fresh green fruits of C. odollam was fractionated, and its phytochemical contents, including total cardiac glycosides, phenolics, flavonoids, and triterpenoids, were quantified. The cytotoxic effects of these fractions were evaluated against HCT116 and HepG2 cells using the MTT assay. The fractions showing the most significant response in HCT116 and HepG2 cells were subsequently combined with sorafenib to examine their synergistic effects. Apoptosis induction, cell cycle progression, and mitochondrial membrane potential (MMP) were then assessed. The underlying mechanism of the apoptotic effect was further investigated by analyzing reactive oxygen species (ROS) generation and the expression levels of antioxidant proteins. RESULTS: Phytochemical analysis showed that C. odollam-ethyl acetate fraction (COEtOAc) was rich in cardiac glycosides, phenolics, and flavonoids, while the dichloromethane fraction (CODCM) contained high levels of triterpenoids and saponins. Following 24 h treatment, HCT116 showed the most significant response to COEtOAc, while HepG2 responded well to CODCM with IC₅₀ values of (42.04 ± 16.94) μg/mL and (123.75 ± 14.21) μg/mL, respectively. Consequently, COEtOAc (20 μg/mL) or CODCM (30 μg/mL), both administered at sub-IC₅₀ concentrations, were combined with sorafenib at 6 μmol/L for HCT116 cells and 2 μmol/L for HepG2 cells, incubated for 24 h. This combination resulted in a significant suppression in cell viability by approximately 50%. The combination of treatments markedly enhanced apoptosis, diminished MMP, and triggered G₀/G₁ phase cell cycle arrest compared to the effects of each treatment administered individually. Concurrently, increased formation of ROS and decreased expression of the antioxidant enzymes superoxide dismutase 2 and catalase supported the proposed mechanism of apoptosis induction by the combination treatment. Importantly, the anticancer effect demonstrated a specific targeted action with a favorable safety profile, as evidenced by HFF-1 cells displaying IC₅₀ values 2-3 times higher than those of the cancer cells. CONCLUSION Utilizing sub-IC₅₀ concentrations of COEtOAc or CODCM in combination with sorafenib can enhance targeted anticancer effects beyond those achieved with single-agent treatments, while mitigating opposing side effects. Future research will focus on extracting and characterizing active constituents, especially cardiac glycosides, to enhance the therapeutic potential of anticancer compounds derived from toxic plants.

Objective To explore the efficacy of total laparoscopic subtotal colectomy with transrectal specimen retrieval for the treatment of slow transit constipation(STC).Methods A total of 18 patients with STC underwent laparoscopic subtotal colectomy with transrectal specimen retrieval from June 2022 to December 2024.A portion of the ileocecal region was reserved.The colon specimen was removed from the rectum and anus,and ileocecal rectal anastomosis was performed.The efficacy of treatment was evaluated by using the Wexner constipation score and Gastrointestinal Quality of life index(GIQLI).Results All the operations in the 18 patients were completed smoothly.There was no conversion to laparotomy or addition of abdominal wall incision for specimen retrieval.The operation time was240-480 min(median,360 min),the intraoperative blood loss was 20-100(median,60 ml),and the length of the resected intestinal tube was 70-110 cm(median,95 cm).The gastrointestinal function recovery time of the patients after surgery was 1-3 d(median,2 d),and the hospital stay was 8-13 d(median,10 d).All the patients recovered smoothly after surgery,without serious complications such as anastomotic leakage and abdominal infection.The Wexner constipation score at 6 months after surgery was(5.7±2.8)points,which was significantly lower than the preoperative score[(16.2±2.1)points,t=21.401,P=0.000].The GIQLI score at6 months after surgery was(114.9±9.1)points,which was significantly higher than the preoperative score[(85.2±7.2)points,t=-28.865,P=0.000].Conclusions Total laparoscopic subtotal colectomy with transrectal specimen retrieval is effective for STC.The patients'defecation status and quality of life are improved after surgery,which has certain clinical promotion value.

This study aims to establish an antibody detection method for porcine deltacoronavirus (PDCoV). The recombinant proteins PDCoV-N1 and PDCoV-N2 were expressed via the prokaryotic plasmid pColdII harboring the N gene sequence of the PDCoV strain CH/XJYN/2016. The reactivity and specificity of PDCoV-N1 and PDCoV-N2 with anti-PEDV sera were analyzed after the recombinant proteins were analyzed by SDS-PAGE and purified by the Ni-NTA Superflow Cartridge. Meanwhile, Western blotting and indirect immunofluorescence assay were carried out separately to validate the recombinant proteins PDCoV-N1 and PDCoV-N2. Finally, we established an indirect ELISA method based on the recombinant protein PDCoV-N2 after optimizing the conditions and tested the sensitivity, specificity, and reproducibility of the method. Then, the established method was employed to examine 102 clinical serum samples. The recombinant protein PDCoV-N2 showed low cross-reactivity with anti-PEDV sera. The optimal conditions of the indirect ELISA method based on PDCoV-N2 were as follows: the antigen coating concentration of 1.25 μg/mL and coating at 37 ℃ for 1 h; blocking by BSA overnight at 4 ℃; serum sample dilution at 1:50 and incubation at 37 ℃ for 1 h; secondary antibody dilution at 1:80 000 and incubation at 37 ℃ for 1 h; color development with TMB chromogenic solution at 37 ℃ for 10 min. The S/P value ≥ 0.45, ≤0.38, and between 0.45 and 0.38 indicated that the test sample was positive, negative, and suspicious, respectively. The testing results of the antisera against porcine epidemic diarrhea virus (PEDV), porcine circovirus 2 (PCV2), transmissible gastroenteritis virus (TGEV), foot-and-mouth disease virus (FMDV), and African swine fever virus (ASFV) showed that the S/P values were all less than 0.38. The testing results of the 800-fold diluted anti-PDCoV sera were still positive. The results of the inter- and intra-batch tests showed that the coefficients of variation of this method were less than 10%. Clinical serum sample test results showed the coincidence rate between this method and neutralization test was 94.12%. In this study, an ELISA method for the detection of anti-PDCoV antibodies was successfully established based on the truncated N protein of PDCoV. This method is sensitive, specific, stable, and reproducible, serving as a new method for the clinical diagnosis of PDCoV.
Animals ; Enzyme-Linked Immunosorbent Assay/methods* ; Swine ; Antibodies, Viral/blood* ; Recombinant Proteins/genetics* ; Deltacoronavirus/isolation & purification* ; Coronavirus Infections/virology* ; Swine Diseases/diagnosis* ; Coronavirus Nucleocapsid Proteins ; Sensitivity and Specificity

Objective To analyze the differences and connections between the current grading and classification methods for nuclear medicine workplaces, and to provide technical guidance for environmental impact assessments and technical reviews. Methods By comparing the objects, purposes, and computational approaches between the two methods, this article illustrates the usage of both methods through specific examples and analyzes the relationship between them. Results The two methods differed in objects, purposes, and computational approaches. The A, B, and C grading scheme was primarily used to establish the level of administrative supervision for an entire nuclear medicine workplace. In contrast, the I, II, and III classification system specifies the hardware facilities and engineering protection requirements of internal places or rooms. Conclusion These two methods are complementary and collectively provide a complete framework for the assessment of nuclear medicine workplaces.

OBJECTIVES: To investigate the effect of pachymic acid on brown/beige adipocyte differentiation and lipid metabolism in preadipocytes. METHODS: 3T3-L1 MBX cells were induced to differentiate into beige adipocytes using a brown cocktail method. The impact of pachymic acid on the viability of 3T3-L1 MBX cells was evaluated using the CCK-8 assay. The formation of lipid droplets following treatment with pachymic acid was observed by oil red O staining. The mRNA expression levels of key browning genes, including uncoupling protein (Ucp) 1, the peroxisome proliferator activated receptor-γ coactivator (Pgc)-1α, and the PR domain-containing protein 16 (Prdm16), as well as the mRNA expression of sterol regulatory element-binding protein (Srebp) 1c, acetyl-coA carboxylase (Acc), fatty acid synthase (Fas), and hormone-sensitive triglyceride lipase (Hsl), adipose triglyceride lipase (Atgl), and carnitine palmitoyltransferase (Cpt) 1 were detected by quantitative reverse transcription polymerase chain reaction. The protein expression of Ucp1, Pgc-1a, and Prdm16 was detected by Western blotting. RESULTS: The 3T3-L1 MBX cells were induced in vitro to form beige adipocytes with high expression of key browning genes(Ucp1, Pgc-1α, and Prdm16), and beige adipose-marker genes (Cd137, Tbx1, and Tmem26). Concentrations range of 0-80 μmol/L pachymic acid were non-cytotoxic to 3T3-L1 MBX cells. Pachymic acid treatment significantly inhibited the differentiation of 3T3-L1 MBX cells, resulting in a notable decrease in lipid accumulation. There was a marked increase in the expression of key browning genes and their proteins products, such as Ucp1, Pgc-1α, and Prdm16, while the expressions of fat synthesis-related genes Srebp1c, Acc and Fas were significantly decreased (all P<0.05). The expressions of lipolysis-related genes (Hsl, Atgl, and Cpt1) were significantly increased (all P<0.05). Treatment with 20 μmol/L pachymic acid showed the most pronounced effect. CONCLUSIONS Pachymic acid can inhibit fat synthesis and promote lipid decomposition by regulating the brown formation and lipid differentiation of preadipocytes.
Animals ; Lipid Metabolism/drug effects* ; Mice ; Cell Differentiation/drug effects* ; Adipocytes, Beige/drug effects* ; 3T3-L1 Cells ; Adipocytes, Brown/drug effects* ; Triterpenes/pharmacology* ; Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha ; Uncoupling Protein 1 ; Sterol Regulatory Element Binding Protein 1/metabolism*

This consensus was developed by the Orthodontic Society of the Chinese Stomatological Association to provide a systematic, scientific, and practical guideline for informed consent in orthodontic care. Orthodontic treatment is typically lengthy, highly individualized, and involves multiple factors such as growth and development, occlusal function, and facial esthetics. Rapid technological advances and diverse risk profiles make the traditional reliance on orthodontist experience or institutional templates insufficient to ensure patients′ full understanding and autonomous decision-making. To address this, the expert panel conducted extensive reviews of domestic and international guidelines, analyzed representative dispute cases, and performed multicenter patient-clinician surveys. Using a multi-round Delphi method, the group established a standardized informed consent framework covering the initial consultation, treatment, and retention phases. The consensus emphasizes that informed consent is not only a fundamental legal and ethical requirement but also a key step in building trust, improving patient compliance, and enhancing treatment satisfaction. Orthodontists should clearly and comprehensively explain treatment plans, potential risks, uncertainties, and associated costs, while respecting the autonomy of patients or guardians, and maintain continuous communication and dynamic evaluation throughout the treatment process. The release of this consensus provides unified and authoritative guidance for clinical orthodontics, helping to standardize informed consent, enhance its transparency, safeguard patient rights, reduce medical risks, and promote high-quality, sustainable development of orthodontic practice.

Objective:To preliminarily explore therapeutic effects and possible molecular mechanisms of sinomenine on atopic dermatitis (AD) -like mouse models.Methods:Thirty female BALB/c mice (6 - 8 weeks old) were randomly divided into 5 groups: blank control group, model group, positive control group, topical sinomenine group, and oral sinomenine group. Except for the blank control group, all groups were subjected to repeated topical stimulation with 2,4-dinitrochlorobenzene (DNCB) on the dorsal skin to establish an AD-like mouse model. After modeling, no special treatment was given to the blank control group, the positive control group was topically treated with 100 μg of 0.1% mometasone furoate cream twice daily on the lesions, the topical sinomenine group was topically treated with 100 μl of 10 mg/ml sinomenine solution twice daily on the lesions, and the oral sinomenine group was gavaged with sinomenine solution at a dose of 100 mg·kg -1·d -1 (100 μl per dose, twice daily) . Treatments lasted for 14 days. Twelve hours after the final treatment, the severity of skin lesions in each group was assessed. Blood samples were collected via enucleation, and serum levels of interleukin (IL) -1β, IL-6, and immunoglobulin E (IgE) were measured using enzyme-linked immunosorbent assay (ELISA) . Histopathological changes in dorsal skin lesions were observed, and immunohistochemical study was performed to detect the expression levels of p38 mitogen-activated protein kinase (MAPK) and nuclear factor (NF) -κB p65 in skin tissues, expressed as the percentage of the immunopositive area. One-way analysis of variance was used for multiple group comparisons, while Tukey′s test or the Games-Howell test was applied for post-hoc comparisons between groups. Results:Compared with the blank control group, the model group exhibited epidermal hyperkeratosis with parakeratosis, thickening of the spinous layer, spongiosis, significant inflammatory cell infiltration, and prominent angiogenesis. In contrast, the positive control group, topical sinomenine group, and oral sinomenine group showed reduced spinous layer thicknesses, decreased inflammatory cell infiltration, and less pronounced angiogenesis compared to the model group. In the blank control group, model group, positive control group, topical sinomenine group, and oral sinomenine group, the severity scores of skin lesions were 0, 8.83 ± 0.75, 4.33 ± 1.08, 2.58 ± 0.49, 2.83 ± 0.93 respectively, the serum levels of IL-1β were 52.58 ± 1.72, 168.40 ± 7.23, 57.07 ± 6.39, 85.74 ± 4.15, 100.30 ± 11.55 pg/ml respectively, IL-6 levels were 86.88 ± 4.60, 215.00 ± 5.02, 79.34 ± 4.91, 127.20 ± 1.06, 149.00 ± 6.21 pg/ml respectively, IgE levels were 2 159.00 ± 176.00, 3 493.00 ± 89.61, 2 294.00 ± 158.10, 2 550.00 ± 214.70, 2 814.00 ± 119.70 μg/ml respectively, the expression levels of p38 MAPK in skin tissues were 3.03% ± 3.38%, 12.95% ± 6.89%, 2.14% ± 1.28%, 5.28% ± 3.71%, 3.85% ± 2.26% respectively, and NF-κB p65 expression levels were 0.61% ± 0.49%, 18.92% ± 6.96%, 3.77% ± 1.90%, 5.66% ± 2.28%, 6.25% ± 3.14% respectively; the differences in all the above parameters were statistically significant among groups (all P < 0.05) . Compared with the blank control group, the model group had significantly increased skin lesion severity scores, serum IL-1β, IL-6, and IgE levels, as well as elevated expression of p38 MAPK and NF-κB p65 in skin tissues (all P < 0.01) . Compared with the model group, the positive control group, topical sinomenine group, and oral sinomenine group showed significantly reduced skin lesion severity scores, decreased serum IL-1β, IL-6, and IgE levels, and lower expression of p38 MAPK and NF-κB p65 in skin tissues (all P < 0.05) . Compared with the positive control group, the topical and oral sinomenine groups exhibited further reductions in skin lesion severity scores (both P < 0.05) . Additionally, the topical sinomenine group showed significantly lower serum levels of IL-1β and IL-6 compared with the oral sinomenine group (both P < 0.05) . Conclusion:Sinomenine solution could obviously alleviate the severity of skin lesions in AD-like mouse models, likely by down-regulating the expression of IL-1β, IL-6 and IgE, inhibiting the MAPK/NF-κB signaling pathway, and thus reducing the degree of inflammation.

This consensus was developed by the Orthodontic Society of the Chinese Stomatological Association to provide a systematic, scientific, and practical guideline for informed consent in orthodontic care. Orthodontic treatment is typically lengthy, highly individualized, and involves multiple factors such as growth and development, occlusal function, and facial esthetics. Rapid technological advances and diverse risk profiles make the traditional reliance on orthodontist experience or institutional templates insufficient to ensure patients′ full understanding and autonomous decision-making. To address this, the expert panel conducted extensive reviews of domestic and international guidelines, analyzed representative dispute cases, and performed multicenter patient-clinician surveys. Using a multi-round Delphi method, the group established a standardized informed consent framework covering the initial consultation, treatment, and retention phases. The consensus emphasizes that informed consent is not only a fundamental legal and ethical requirement but also a key step in building trust, improving patient compliance, and enhancing treatment satisfaction. Orthodontists should clearly and comprehensively explain treatment plans, potential risks, uncertainties, and associated costs, while respecting the autonomy of patients or guardians, and maintain continuous communication and dynamic evaluation throughout the treatment process. The release of this consensus provides unified and authoritative guidance for clinical orthodontics, helping to standardize informed consent, enhance its transparency, safeguard patient rights, reduce medical risks, and promote high-quality, sustainable development of orthodontic practice.

Objective To explore the efficacy of total laparoscopic subtotal colectomy with transrectal specimen retrieval for the treatment of slow transit constipation(STC).Methods A total of 18 patients with STC underwent laparoscopic subtotal colectomy with transrectal specimen retrieval from June 2022 to December 2024.A portion of the ileocecal region was reserved.The colon specimen was removed from the rectum and anus,and ileocecal rectal anastomosis was performed.The efficacy of treatment was evaluated by using the Wexner constipation score and Gastrointestinal Quality of life index(GIQLI).Results All the operations in the 18 patients were completed smoothly.There was no conversion to laparotomy or addition of abdominal wall incision for specimen retrieval.The operation time was240-480 min(median,360 min),the intraoperative blood loss was 20-100(median,60 ml),and the length of the resected intestinal tube was 70-110 cm(median,95 cm).The gastrointestinal function recovery time of the patients after surgery was 1-3 d(median,2 d),and the hospital stay was 8-13 d(median,10 d).All the patients recovered smoothly after surgery,without serious complications such as anastomotic leakage and abdominal infection.The Wexner constipation score at 6 months after surgery was(5.7±2.8)points,which was significantly lower than the preoperative score[(16.2±2.1)points,t=21.401,P=0.000].The GIQLI score at6 months after surgery was(114.9±9.1)points,which was significantly higher than the preoperative score[(85.2±7.2)points,t=-28.865,P=0.000].Conclusions Total laparoscopic subtotal colectomy with transrectal specimen retrieval is effective for STC.The patients'defecation status and quality of life are improved after surgery,which has certain clinical promotion value.