OBJECTIVE: To evaluate the immediate effect of Kuanxiong Aerosol (KXA) on perioperative coronary microcirculation in patients with unstable angina (UA) suffering from elective percutaneous coronary intervention (PCI). METHODS: From February 2021 to July 2023, UA inpatients who underwent PCI alone in the left anterior descending (LAD) branch were included. Random numbers were generated to divide patients into the trial group and the control group at a ratio of 1:1. The index of coronary microcirculation resistance (IMR) was measured before PCI, and the trial group was given two sprays of KXA, while the control group was not given. IMR was measured again after PCI, cardiac troponin I (cTnI) and creatine kinase isoenzyme-MB (CK-MB) were detected before and 24 h after surgery, and major cardiovascular adverse events (MACEs) were recorded for 30 days. The data statistics and analysis personnel were blinded. RESULTS: Totally 859 patients were screened, and 62 of them were involved into this study. Finally, 1 patient in the trial group failed to complete the post-PCI IMR and was excluded, 30 patients were included for data analysis, while 31 patients in the control group were enrolled in data analysis. There was no significant difference in baseline data (age, gender, risk factors, previous history, biochemical index, and drug therapy, etc.) between the two groups. In addition, differences in IMR, cTnI and CK-MB were not statistically significant between the two groups before surgery. After PCI, the IMR level of the trial group was significantly lower than that of the control group (19.56 ± 14.37 vs. 27.15 ± 15.03, P=0.048). Besides, the incidence of perioperative myocardial injury (PMI) was lower in the trial group, but the difference was not statistically significant (6.67% vs. 16.13%, P=0.425). No MACEs were reported in either group. CONCLUSIONS KXA has the potential of improving coronary microvascular dysfunction. This study provides reference for the application of KXA in UA patients undergoing elective PCI. (Registration No. ChiCTR2300069831).
Humans ; Percutaneous Coronary Intervention ; Male ; Microcirculation/drug effects* ; Female ; Angina, Unstable/physiopathology* ; Pilot Projects ; Middle Aged ; Aged ; Drugs, Chinese Herbal/pharmacology* ; Aerosols ; Troponin I/blood* ; Coronary Circulation/drug effects* ; Elective Surgical Procedures

OBJECTIVE: To evaluate the efficacy and safety of Shexiang Tongxin Dropping Pill (STDP) in treating stable angina patients with phlegm-heat and blood-stasis syndrome by exercise duration and metabolic equivalents. METHODS: This multicenter, randomized, double-blind, placebo-controlled clinical trial enrolled stable angina patients with phlegm-heat and blood-stasis syndrome from 22 hospitals. They were randomized 1:1 to STDP (35 mg/pill, 6 pills per day) or placebo for 56 days. The primary outcome was the exercise duration and metabolic equivalents (METs) assessed by the standard Bruce exercise treadmill test after 56 days of treatment. The secondary outcomes included the total angina symptom score, Chinese medicine (CM) symptom scores, Seattle Angina Questionnaire (SAQ) scores, changes in ST-T on electrocardiogram and adverse events (AEs). RESULTS: This trial enrolled 309 patients, including 155 and 154 in the STDP and placebo groups, respectively. STDP significantly prolonged exercise duration with an increase of 51.0 s, compared to a decrease of 12.0 s with placebo (change rate: -11.1% vs. 3.2%, P<0.01). The increase in METs was significantly greater in the STDP group than in the placebo group (change: -0.4 vs. 0.0, change rate: -5.0% vs. 0.0%, P<0.01). The improvement of total angina symptom scores (25.0% vs. 0.0%), CM symptom scores (38.7% vs. 11.8%), reduction of nitroglycerin consumption (100.0% vs. 11.3%), and all domains of SAQ, were significantly greater with STDP than placebo (all P<0.01). The changes in Q-T intervals at 28 and 56 days from baseline were similar between the two groups (both P>0.05). Twenty-five participants (16.3%) with STDP and 16 (10.5%) with placebo experienced AEs (P=0.131), with no serious AEs observed. CONCLUSION STDP could improve exercise tolerance in patients with stable angina and phlegm-heat and blood stasis syndrome, with a favorable safety profile. (Registration No. ChiCTR-IPR-15006020).
Humans ; Double-Blind Method ; Drugs, Chinese Herbal/adverse effects* ; Male ; Female ; Middle Aged ; Angina, Stable/physiopathology* ; Aged ; Syndrome ; Treatment Outcome ; Placebos ; Tablets

Objective To explore the common features of Chinese ethnic groups.Methods Eight body indexes of 62 ethnic groups in China were analyzed.Results The cluster analysis showed that 52 males and 59 females ethnic groups were grouped into the mixed group dominated by the northern ethnic group and the mixed group dominated by the southern ethnic group.Eight Han ethnic groups were grouped into each group,but no Han group was aggregated.The result of body index classification showed that the main body types of Chinese male population were long trunk,middle chest,wide shoulder,wide pelvis and middle leg.Middle body,wide chest,wide shoulder,wide pelvis and middle leg were the main body types of Chinese female population.This showed that the characteristics of Chinese ethnic groups had obvious consistency.The consistency of Chinese group features was related to its close origin.It should be said that Han nationality played an important role in the process of communication and integration of various ethnic groups in China.In the history of the Han nationality,there had been many large-scale population migration.The southern movement of the northern ethnic minorities into the northern Han and the southward movement of the northern Han into the south promoted the formation of the Southern Han,which made the southern Han and the northern Han had similar body features,and also promoted the southern ethnic minorities into the southern Han.In addition,the Han nationality who moved into minority areas also gradually integrated into minority areas.Conclusion There are obvious commonalities in Chinese ethnic groups.

Objective To survey and analysis of cephalometric indicators of Wa adults in China.Methods Cephalometric parameters were measured in 1996 cases(858 males and 1138 females)of Wa adults in China,including 927 cases(381 males and 546 females)of the Baraoke ethnic group,564 cases(241 males and 323 females)of the A Wa ethnic group,and 505 cases(236 males and 269 females)of the Wa ethnic group by using sliding caliper and spreading caliper.Seventeen direct cephalofacial parameters and one indirect parameter for each of the three dialect ethnic groups were derived separately and analyzed for age correlations,inter-sex u-tests,and multiple comparisons.Finally,the three dialect ethnic groups were subjected to cluster analysis and principal component analysis with 15 ethnic groups in China.Results Nose breadth,mouth breadth and physiognomic ear length were significantly and positively correlated with age for both sexes in the three Wa dialect ethnic groups,while head breadth and lip height were significantly and negatively correlated with age.Except for the interocular breadth,there were gender differences between males and females in the cephalometric parameters of the three Wa dialect ethnic groups.The cephalofacial features of the Baraoke,A Wa and Wa ethnic groups were different,as evidenced by the fact that males and females of the Baraoke and Wa dialect ethnic group had higher lip height,wider nasal breadth and wider mouth breadth,while males and females of the A Wa ethnic group had lower nasal height.Conclusion The cephalofacial features of the three Wa dialect ethnic groups are close to those of the Khmus and Mang,who have their origins in the ancient Baipu people and are also members of the Mon-Khmer language group of the Austroasiatic linguistic.

BACKGROUND:Due to the young age of children,the occipital condyle and foramen magnum are not fully developed,and they are prone to various diseases and injuries in the occipitocervical junction,which requires surgical treatment in severe cases.However,anatomical parameters for the development of the occipital condyle and foramen magnum in children are lacking. OBJECTIVE:To measure the morphological structure of the occipital condyle and foramen magnum by three-dimensional reconstruction technique,and to provide important anatomical parameters for occipitocervical junction lesions,related surgical procedures and forensic identification. METHODS:Imaging data of 389 cases of primitive children and adolescents involved in skull base undergoing spiral CT scanning(247 males and 142 females)aged 1-18 years were collected and divided into 1-3-year-old group,4-6-year-old group,7-9-year-old group,10-12-year-old group,13-15-year-old group,and 16-18-year-old group according to their age.Mimics 16.0 software was used to reconstruct the skull base and measure the length and width of the foramen magnum.A formula was used to calculate the area and index of the foramen magnum.We measured the length,width and height of the occipital condyle,the angle between the long axis and the sagittal axis of the occipital condyle(O-S angle),the included angle between the midpoint of the front and back edges of the foramen magnum and the connection between the back edge of occipital condyle and the intersection point of the foramen magnum(F-O angle),and the included angle between the midpoint of the front and back edges of the foramen magnum and the midpoint of the back wall of the sublingual neural tube(F-H angle).Gender,side and age differences were analyzed among the indicators. RESULTS AND CONCLUSION:(1)In foramen magnum measurement,there was no significant difference between sexes in the index of the foramen magnum(P>0.05),but there were significant differences in length,width and area of the foramen magnum(P<0.05).(2)The O-S angle,F-O angle and F-H angle of the occipitral condyle were not significantly different between genders(P>0.05),but length,width and height of the occipital condyle were significantly different between genders(P<0.05).(3)There were no significant differences in the length of the occipital condyle among different groups(P>0.05),but there were significant differences in the width and height of the occipital condyle,O-S angle,F-O angle and F-H angle among different groups(P<0.05).(4)Length,width and area of the foramen magnum,length,width and height of the occipital condyle showed a wavy increasing trend with the increase of age,while O-S,F-O and F-H angles showed a wavy decreasing trend with the increase of age,while the index of the foramen magnum showed no significant change.(5)In conclusion,there are gender and lateral differences in the morphological indexes of the foramen magnum and the occipital condyle in children.These differences can provide an important reference for clinical surgical approach selection and forensic examination.

Objective To investigate the effect of vecuronium bromide on the malignant biological behavior of gastric cancer cells and its molecular mechanism.Methods Gastric cancer cells HGC-27 were divided into control group,experimental-L,-M,-H groups,si-NC group,si-FGD5-AS1 group,pcDNA-FGD5-AS1 group,pcDNA group,experimental-H+pcDNA group,experimental-H+pcDNA-FGD5-AS1 group.The control group was cultured conventionally;experimental-L,-M,-H groups were treated with 5,10 and 20μmol·mL-1 vecuronium bromide,respectively;si-FGD5-AS1 group and the si-NC group were transfected with lncRNA FGD5-AS1 interference expression vector and negative control plasmid,respectively;pcDNA-FGD5-AS1 group and pcDNA group were transfected with lncRNA FGD5-AS1 overexpression vector and negative control plasmid,respectively;lncRNA FGD5-AS1 overexpression vector and negative control plasmid were transfected into HGC-27 cells in the experimental-H+pcDNA-FGD5-AS1 group and experimental-H+pcDNA group,and then treated with 20 μmuol·mL-1 vecuronium bromide.Methyl thiazolyl tetrazolium(MTT),flow cytometry and real-time fluorescent quantitative polymerase chain reaction(RT-qPCR)were applied to dectect cell viability,apoptosis and lncRNA FGD5-AS1 expression.Results The cell activity of control group,experimental-L,-M,-H groups,si-NC group,si-FGD5-AS1 group,pcDNA group,PCDNA-FGD5-AS1 group,experimental-H+pcDNA group and experimental-H+PCDNA-FGD5-AS1 group were 1.31±0.07,0.58±0.03,1.31±0.06,0.51±0.03,1.29±0.08,1.68±0.15,0.59±0.03 and 1.16±0.06;the apoptosis rates were(6.49±0.44)％,(23.52±0.98)％,(6.42±0.44)％,(26.75±0.97)％,(6.72±0.38)％,(2.56±0.19)％,(23.56±1.04)％and(11.65±0.47)％;the expression levels of lncRNA FGD5-AS1 were 1.00±0.05,0.37±0.02,0.99±0.05,0.21±0.02,1.00±0.03,2.98±0.12,0.38±0.02 and 0.87±0.05,respectively.The above indexes were compared with the control group and experimental-H group,those in the si-FGD5-AS1 group were compared with the si-NC group,those in the pcDNA-FGD5-AS1 group were compared with the pcDNA group,and those in the experimental-H+pcDNA-FGD5-AS1 group were compared with the experimental-H+pcDNA group,the differences were statistically significant(all P＜0.05).Conclusion Vecuronium bromide may inhibit the proliferation of HGC-27 cells and promote cell apoptosis by down-regulating lncRNA FGD5-AS1.

To investigate the pharmacokinetic characteristics and metabolites of Src homology 2 region-containing protein tyrosine phosphatase 2 (SHP2) protein inhibitor in SD rats, a triazole quinolinone based derivative NC-55-122 was utilized. Firstly, rats were randomly divided into groups and given compound NC-55-122 intragastric and intravenous administration, respectively. Blood samples were collected at different time points. Taking carbmazepine as the internal standard, ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to determine the concentration of NC-55-122 in rats, and the methodology was verified. DAS 2.0 software was used to calculate the main pharmacokinetic parameters, and GraphPad Prism 8.0.1 software was used to plot the blood concentration-time curve. At the same time, UPLC-Q-TOF/MS was established to analyze plasma samples, and UNIFI metabolite prediction software was used to analyze metabolites after oral gavage and intravenous injection. The linear range of the mass concentration of compound NC-55-122 was from 1 ng·mL^-1 to 1 600 ng·mL^-1, and the linear relationship was good. The matrix effect, extraction recovery, precision, accuracy and stability were investigated in this linear range, which met the requirements of biological analysis. Secondly, the analysis of pharmacokinetic parameters showed that the oral bioavailability of the compound was low, with F%= 3.09%, indicating that the compound was absorbed slowly in vivo. Finally, five possible metabolites were deduced by analyzing the ion flow diagram and combining UNIFI software. The detection method established in this experiment is highly sensitive, specific, rapid and efficient, which is suitable for the determination of the blood concentration of compound NC-55-122 in rats and the analysis of metabolites, and lays a foundation for the structural modification and druggability evaluation of the later anti-tumor drug NC-55-122. All animal experiments were approved by the Experimental Animal Ethics Committee of Guizhou Medical University (approval number: 2200823).

AIM To study the chemical constituents from the leaves of Citrus reticulata Blanco and their anti-inflammatory activities.METHODS The 85%ethanol extract from the leaves of C.reticulata was isolated and purified by silica gel,D101 macroporous resin,MCI,ODS and Sephadex LH-20,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The Griess method was used to determine their inhibitory activities on lipopolysaccharide-induced NO production in macrophages RAW 264.7 cells.The mice foot swelling inflammation model induced by carrageenan was established,and the levels of IL-1β,TNF-α were detected.RESULTS Twelve compounds were isolated and identified as nobiletin(1),tangeretin(2),5-demethylinoblitin(3),5,4'-dihydroxy-6,7,8,3'-tetramethoxy flavone(4),5-hydroxy-7,8,3',4'-trimethoxyflavanone(5),3,5,6,7,8,3',4'-heptamethoxyflavanone(6),hesperetin(7),5-hydroxy-6,7,3',4'-tetramethoxyphenone(8),β-balsam alcohol(9),stigmaster-5-en-3β-alcohol(10),p-hydroxybenzaldehyde(11),vanillin(12).Compounds 1,4,6,7,10 and 12 had strong inhibitory activites on NO release in LPS-induced RAW 264.7 cells,and the IC50 values were(25.21±2.10),(37.77±0.50),(38.19±1.58),(21.89±1.73),(43.81±1.18),(47.98±2.55),(41.23±1.11),(43.80±1.43)μmol/mL,respectively.Compounds 2-3 reduced IL-1β and TNF-α levels(P＜0.05,P＜0.01).CONCLUSION Compounds 6-7,9 are isolated from this plant for the first time.Compounds 1-4,8 exhibit strong in vitro anti-inflammatory activities,and compounds 2-3 exhibit significant in vivo anti-inflammatory activities.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

Objective To explore the correlation among image acquisition parameter optimization,coronary angiography radiation dose and image quality.Methods 60 patients scheduled for elective percutaneous coronary angiography from January 2022 to January 2024 in our hospital were selected.Basic information and body measurements were collected.Patients were divided into three groups based on BMI,and patients in each BMI group were randomly assigned to the conventional mode group(coronary mode image acquisition:Cardiac Left Coronary,15fps)and the optimized mode group(electrophysiology mode image acquisition:Cardiac EP,7.5fps).Radiation dose data were collected.Image quality was evaluated using an image quality scoring table.Independent sample t-tests,Mann-Whitney U tests,and one-way ANOVA were used for comparisons between groups.Pearson analysis was used for correlations.Results Higher BMI and larger chest circumference were associated with higher radiation doses in a positive linear correlation.Within each BMI group,all radiation dose data(Dose-Area Product,Air Kerma and Chest skin dose)were lower in the optimized mode group than in the conventional mode group(all P＜0.05,reduction rate 48.95％-70.59％).The difference in image quality scores between two groups was not statistically significant(P＞0.05),and all images were of the required quality.Conclusions The radiation dose of percutaneous coronary angiography is affected by the patient's body size,image acquisition parameters,exposure time and many other factors.Optimizing the image acquisition parameters can ensure the quality of the image while realizing the low dose of radiation and reducing the radiation hazards to the patient and the operator.