[Objective] To study the molecular biological mechanism for a case of ABO blood group B subtype, and perform three-dimensional modeling of the mutant enzyme. [Methods] The ABO phenotype was identified by the tube method and microcolumn gel method; the ABO gene of the proband was detected by sequence-specific primer polymerase chain reaction (PCR-SSP), and the exon 6 and 7 of the ABO gene were sequenced and analyzed. Homologous modeling of Bw.03 glycosyltransferase (GT) was carried out by Modeller and analyzed by PyMOL2.5.0 software. [Results] The weakening B antigen was detected in the proband sample by forward typing, and anti-B antibody was detected by reverse typing. PCR-SSP detection showed B, O gene, and the sequencing results showed c.721 C>T mutation in exon 7 of the B gene, resulting in p. Arg 241 Trp. Compared with the wild type, the structure of Bw.03GT was partially changed, and the intermolecular force analysis showed that the original three hydrogen bonds at 241 position disappeared. [Conclusion] Blood group molecular biology examination is helpful for the accurate identification of ambiguous blood group. Homologous modeling more intuitively shows the key site for the weakening of Bw.03 GT activity. The intermolecular force analysis can explain the root cause of enzyme activity weakening.

[Objective] To investigate the factors associated with alanine aminotransferase (ALT) abnormalities in multi-ethnic blood donors across five Zang autonomous prefectures in the plateau regions of Qinghai Province, and to provide evidence for ensuring blood safety and formulating screening strategies. [Methods] A retrospective analysis was performed on the ALT abnormal test results of blood donors in the Zang autonomous prefectures of Qinghai from 2022 to 2024. The correlations between ALT levels and factors including gender, age, altitude, and infectious markers were investigated. [Results] The overall ALT unqualified rate among blood donors in this region was 9.01%. Significant differences in ALT levels were observed across genders and age groups (P<0.05). Variations in ALT abnormality rates were also noted among different plateau regions (P<0.05). Overall, ALT values exhibited an increasing trend with rising altitude. The average ALT unqualified rates were 11.19% in Zang donors, 7.96% in Han donors, and 4.79% in donors from other ethnic groups (P<0.05). No statistically significant association was observed between ALT abnormality and the presence of HBV/HCV infectious markers (P>0.05). [Conclusion] In the plateau areas of Qinghai, multi-ethnic blood donors have a relatively high ALT levels and ALT unqualified rates, showing distinct regional characteristics. ALT elevation in voluntary blood donors is related to non-pathological factors such as gender, age, and dietary habits, but not to infectious indicators.

This consensus will introduce the characteristics of fillers used in the surgical cavities of domestic nasal surgery patients based on relevant literature and expert opinions. It will also provide recommendations for the selection of cavity fillers for different nasal diseases, with chronic sinusitis as a representative example.
Humans ; Nasal Cavity/surgery* ; Nasal Surgical Procedures ; China ; Consensus ; Sinusitis/surgery* ; Dermal Fillers

[Objective] To investigate and analyze the current status, needs and issues of information system construction in blood collection and supply institutions in Beijing, and to provide strategic suggestions for the further improvements. [Methods] The qualitative information of information systems from relevant departments of Beijing Red Cross Blood Center, central blood stations, blood banks and hospitals in Beijing were collected by sequential interview method, and analyzed. [Results] There were 6 information systems in operation in blood collection and supply institutions in Beijing, covering functions such as blood collection and supply service management, blood donation information inquiry and reporting, blood collection and supply institution business management, blood donor information management, blood information promotion and information disclosure. However, there were still issues such as low level of system informatization, lack of top-level design for information construction, non-unified data standards, and incomplete system analysis and statistical functions. [Conclusion] Blood collection and supply institutions in Beijing need to further carry out network infrastructure construction, reconstruct system architecture, improve the functions of the blood management information platform, unify data and interfaces to achieve information sharing, and use emerging technologies to achieve intelligence and precision in blood collection and supply services and management.

Objective:To retrospectively analyze the treatment status of tyrosine kinase inhibitors (TKI) in newly diagnosed patients with chronic myeloid leukemia (CML) in China.Methods:Data of chronic phase (CP) and accelerated phase (AP) CML patients diagnosed from January 2006 to December 2022 from 77 centers, ≥18 years old, and receiving initial imatinib, nilotinib, dasatinib or flumatinib-therapy within 6 months after diagnosis in China with complete data were retrospectively interrogated. The choice of initial TKI, current TKI medications, treatment switch and reasons, treatment responses and outcomes as well as the variables associated with them were analyzed.Results:6 893 patients in CP ( n=6 453, 93.6%) or AP ( n=440, 6.4%) receiving initial imatinib ( n=4 906, 71.2%), nilotinib ( n=1 157, 16.8%), dasatinib ( n=298, 4.3%) or flumatinib ( n=532, 7.2%) -therapy. With the median follow-up of 43 ( IQR 22-75) months, 1 581 (22.9%) patients switched TKI due to resistance ( n=1 055, 15.3%), intolerance ( n=248, 3.6%), pursuit of better efficacy ( n=168, 2.4%), economic or other reasons ( n=110, 1.6%). The frequency of switching TKI in AP patients was significantly-higher than that in CP patients (44.1% vs 21.5%, P<0.001), and more AP patients switched TKI due to resistance than CP patients (75.3% vs 66.1%, P=0.011). Multi-variable analyses showed that male, lower HGB concentration and ELTS intermediate/high-risk cohort were associated with lower cytogenetic and molecular responses rate and poor outcomes in CP patients; higher WBC count and initial the second-generation TKI treatment, the higher response rates; Ph + ACA at diagnosis, poor PFS. However, Sokal intermediate/high-risk cohort was only significantly-associated with lower CCyR and MMR rates and the poor PFS. Lower HGB concentration and larger spleen size were significantly-associated with the lower cytogenetic and molecular response rates in AP patients; initial the second-generation TKI treatment, the higher treatment response rates; lower PLT count, higher blasts and Ph + ACA, poorer TFS; Ph + ACA, poorer OS. Conclusion:At present, the vast majority of newly-diagnosed CML-CP or AP patients could benefit from TKI treatment in the long term with the good treatment responses and survival outcomes.

ObjectiveTo investigate the antiviral effect of Menispermi Rhizoma total alkaloids and its relationship with the type Ⅰ interferon （IFN-Ⅰ） signaling pathway. MethodThe effects of Menispermi Rhizoma total alkaloids on the intracellular replication of influenza A virus （H1N1）， vesicular stomatitis virus （VSV）， and cerebral myocarditis virus （EMCV） were detected by fluorescent inverted microscope， flow cytometry， Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR）， and Western blot. A mouse model infected with H1N1 was constructed， and the mice were divided into a control group， H1N1 model group， Menispermi Rhizoma total alkaloids groups （10， 20， 30 mg·kg^-1）， and oseltamivir group （40 mg·kg^-1）， so as to study the effects on the weight and survival rate of infected mice. Real-time PCR was used to detect the activation effect of Menispermi Rhizoma total alkaloids on the IFN-Ⅰ pathway in cells， and the relationship between the antiviral effect of Menispermi Rhizoma total alkaloids in IFNAR1 knockout A549 cells （IFNAR1^-/--A549） and IFN-Ⅰ pathway was detected. ResultCompared with the control group， the virus proliferated significantly in the model group （P<0.01）. Compared with the model group， Menispermi Rhizoma total alkaloids could significantly inhibit the replication of H1N1， VSV， and EMCV in vitro （P<0.01）， inhibit the weight loss of the mice infected with the H1N1 in vivo， and improve the survival rate of mice （P<0.05）. In addition， Menispermi Rhizoma total alkaloids activated the IFN-I pathway and relied on this pathway to exert the function of antiviral infection. ConclusionMenispermi Rhizoma total alkaloids exert antiviral effects in vivo and in vitro by activating the IFN-Ⅰ pathway.

ObjectiveTo systematically review the studies about Yiqing Capsules in the treatment of pharyngitis， tonsillitis， gingivitis， and oral ulcers with heat-toxin syndrome and clarify the advantages and therapeutic characteristics of Yiqing capsules， thus providing reference for the decision-making by relevant departments and clues for the clinical and basic research. MethodThe multi-criteria decision analysis （MCDA） model and CSC v2.0 were employed to comprehensively evaluate Yiqing capsules from multiple aspects. ResultThe serious adverse reactions in the spontaneous reporting system （SRS） monitoring data of Yiqing capsules included pruritus， rash， an ddiarrhea， all of which were relieved or cured， without aggravation or interhospital transfer for treatment. Literature data showed that the main clinical adverse reactions were abdominal pain， diarrhea， etc. Both acute toxicity and long-term toxicity tests showed good safety， and thus the safety of Yiqing capsules was rated as grade B. The results of Meta-analysis showed that Yiqing capsules used alone or in combination with other medicines outperformed Niuhuang Jiedu capsules or Western medicine in the treatment of pharyngitis， tonsillitis， gingivitis， and oral ulcers with heat toxin in terms of symptom alleviation， disappearance rate of main symptoms， and recurrence rate of aphtha. Pharmacological and pharmacodynamic studies showed that Yiqing capsules had antimicrobial， antiviral， and anti-inflammatory effects， with the effectiveness rated as grade B. The decision tree model was adopted to analyze the incremental cost-effectiveness ratio. With the threshold of 1 fold per capita GDP and the disappearing rate of pain in gingivitis as the indicator， Yiqing capsules had an economic advantage in the treatment of gingivitis due to heat-toxin compared with Niuhuang Jiedu capsules， and the incremental cost-effectiveness ratio was 0.39 yuan/%， which indicated acceptable cost， with the economy rated as grade B. Yiqing capsules can not only clear heat from Qi aspect but also purge blood fire， serving as the representative prescription of clearing and purging for heat-toxin syndrome. Considering the industrial service system and enterprise innovation， the comprehensive innovation of Yiqing capsules was rated as grade B. Generally， this product does not require personalized treatment plans and features convenient supply， storage， transportation， policy publicity， drug information standards， and easy operation for medical care and patients. The Chinese patent medicine information was complete and in line with national standards， and thus the suitability of Yiqing capsules was rated as grade A. With a low price and good availability and affordability， the accessibility of Yiqing capsules was rated as grade A. The Yiqing capsules prescription， Sanhuang Xiexin decoction， originated from ancient medical books， with rich real-world studies， and thus the traditional Chinese medicine characteristics of Yiqing capsules was rated as grade C. ConclusionThe clinical value of Yiqing capsules was rated as grade B from the "6+1" dimensions， suggesting that it could be conditionally converted into the relevant policy results of basic clinical drug management according to the procedure.

Objective:To evaluate the effect of the right stellate ganglion block (SGB) on the acute lung injury induced by hind limb ischemia-reperfusion (I/R) in rats.Methods:Twenty-seven SPF healthy male Sprague-Dawley rats, aged 7-8 weeks, weighing 200-250 g, were divided into 3 groups ( n=9 each) by the random number table method: sham operation group (Sham group), hind limb I/R group (I/R group) and right SGB+ hind limb I/R group (SGB+ I/R group). The right hind limb I/R injury model was developed in anesthetized rats in I/R and SGB+ I/R groups, and the right SGB was performed with 0.2% ropivacaine 0.5 ml before the right hind limb ischemia in SGB+ I/R group. The pathological changes of lung tissues were observed with a light microscope, the wet/dry lung weight ratio, PaO 2 and PaCO 2 were determined, and the oxygenation index was calculated. The concentrations of serum malondialdehyde (MDA) and glutathione peroxidase (GSH-Px) were determined using enzyme-linked immunosorbent assay. Results:Compared with Sham group, the wet/dry lung weight ratio, PaO 2, oxygenation index, and GSH-Px concentrations were significantly decreased, and the concentrations of serum MDA were increased in I/R and SGB+ I/R groups ( P<0.05). Compared with I/R group, the wet/dry lung weight ratio, PaO 2, oxygenation index, and GSH-Px concentrations were significantly increased, the concentrations of serum MDA were decreased ( P<0.05), and the pathological changes of lung tissues were significantly attenuated in SGB+ I/R group. There was no significant difference in PaCO 2 among the 3 groups ( P>0.05). Conclusions:The right SGB can alleviate the acute lung injury induced by hind limb I/R, and the mechanism may be related to the inhibition of oxidative stress responses in rats.

Objective:To evaluate the diagnostic efficacy and practicality of the Jaundice color card (JCard) as a screening tool for neonatal jaundice.Methods:Following the standards for reporting of diagnostic accuracy studies (STARD) statement, a multicenter prospective study was conducted in 9 hospitals in China from October 2019 to September 2021. A total of 845 newborns who were admitted to the hospital or outpatient department for liver function testing due to their own diseases. The inclusion criteria were a gestational age of ≥35 weeks, a birth weight of ≥2 000 g, and an age of ≤28 days. The neonate′s parents used the JCard to measure jaundice at the neonate′s cheek. Within 2 hours of the JCard measurement, transcutaneous bilirubin (TcB) was measured with a JH20-1B device and total serum bilirubin (TSB) was detected. The Pearson′s correlation analysis, Bland-Altman plots and the receiver operating characteristic (ROC) curve were used for statistic analysis.Results:Out of the 854 newborns, 445 were male and 409 were female; 46 were born at 35-36 weeks of gestational age and 808 were born at ≥37 weeks of gestational age. Additionally, 432 cases were aged 0-3 days, 236 cases were aged 4-7 days, and 186 cases were aged 8-28 days. The TSB level was (227.4±89.6) μmol/L, with a range of 23.7-717.0 μmol/L. The JCard level was (221.4±77.0) μmol/L and the TcB level was (252.5±76.0) μmol/L. Both the JCard and TcB values showed good correlation ( r=0.77 and 0.80, respectively) and agreements (96.0% (820/854) and 95.2% (813/854) of samples fell within the 95% limits of agreement, respectively) with TSB. The JCard value of 12 had a sensitivity of 0.93 and specificity of 0.75 for identifying a TSB ≥205.2?μmol/L, and a sensitivity of 1.00 and specificity of 0.35 for identifying a TSB ≥342.0?μmol/L. The TcB value of 205.2?μmol/L had a sensitivity of 0.97 and specificity of 0.60 for identifying TSB levels of 205.2 μmol/L, and a sensitivity of 1.00 and specificity of 0.26 for identifying TSB levels of 342.0 μmol/L. The areas under the ROC curve (AUC) of JCard for identifying TSB levels of 153.9, 205.2, 256.5, and 342.0 μmol/L were 0.96, 0.92, 0.83, and 0.83, respectively. The AUC of TcB were 0.94, 0.91, 0.86, and 0.87, respectively. There were both no significant differences between the AUC of JCard and TcB in identifying TSB levels of 153.9 and 205.2 μmol/L (both P>0.05). However, the AUC of JCard were both lower than those of TcB in identifying TSB levels of 256.5 and 342.0 μmol/L (both P<0.05). Conclusions:JCard can be used to classify different levels of bilirubin, but its diagnostic efficacy decreases with increasing bilirubin levels. When TSB level are ≤205.2 μmol/L, its diagnostic efficacy is equivalent to that of the JH20-1B. To prevent the misdiagnosis of severe jaundice, it is recommended that parents use a low JCard score, such as 12, to identify severe hyperbilirubinemia (TSB ≥342.0 μmol/L).