Application of 3D printing in the preoperative evaluation of transcatheter aortic valve replacement for patients at risk of coronary artery obstruction:two case reports / 中国介入心脏病学杂志

Transcatheter aortic valve replacement(TAVR)is currently one of the main therapeutic strategies for aortic valve disease.Preoperative imaging assessment is crucial for operation project planning and prevention of procedure-associated complications.Different from planar image reconstruction,3D printing technology can accurately depict the anatomical structure of the aortic root.It enables further assessment of operative risk and therapeutic strategy through in vitro simulation,especially for assessing the risk of coronary artery obstruction and planning interventional procedures.Here,we report on two patients who underwent a 3D printing aortic root anatomical simulation model,followed an by in vitro balloon dilatation/valve implantation test,to evaluate the risk of coronary artery obstruction suggested by CT angiography planar image reconstruction before TAVR.

Simultaneous GC-MS determination of sixteen pesticide residues and safety assessment for Lycii Fructus / 中成药

AIM To establish a GC-MS method for the simultaneous content determination of sixteen pesticide residues in Lycii Fructus and perform safety assessment.METHODS The analysis was performed on DB-5MS chromatographic column(30 m×0.25 mm,0.25 μm)subjected to the programmed heating,with splitless injection of 1.0 μL dissolved sample at a flowing rate of 1.0 mL/min.Other parameters were as follows:injection port temperature of 250℃,electron impact ionization(EI),electron energy of 70 eV;ion source temperature of 230℃,multi-reaction monitoring mode,and collision gas.of high-purity N2.Pesticide residues with relatively high dietary risk were analyzed and discussed with regard to residue levels,dietary intake risk,risk ranking and cumulative exposure assessment.RESULTS Sixteen pesticides showed good linear relationships within their own ranges(r≥0.994 4),whose average recoveries were 70%-114%,with the RSDs of less than 2%.The highest average cyfluthrin residue of 0.999 2 mg/kg in Lycii Fructus of production regions and the highest average cypermethrin residue of 0.088 4 mg/kg in Lycii Fructus commodities were both detected.In Lycii Fructus of production regions with chronic hazard index(HI)value of 0.012 9 and acute HI value of 0.065 5 and their commodities with chronic HI of 0.001 2 and acute HI of 0.005 4,the pesticide residue of cypermethrin was the leading cause of chronic and acute dietary risk,and additionally,pyridaben within maximum residue limit(MRL)was the only detectectable highly toxic pesticide among the other most concerning pestcides of deltamethrin,pyridaben,chlorpyrifos,dichlorvos and methidathion.CONCLUSION There exist pesticide residues within MRL values in some samples of Lycii Fructus and the use of cypermethrin should be well-controlled.

Biosynthesis and Application of Sugar Nucleotides / 生物化学与生物物理进展

Glycosylation is one of the most important reactions in living organisms as it results in the formation of glycoconjugates with diverse biological functions. Sugar nucleotides are structurally composed of sugar and nucleoside diphosphate or monophosphate, which are widespread within a variety of biological cells. As glycosyl donors for the transglycosyl reactions catalyzed by Leloir-type glycosyltransferases, sugar nucleotides are essential for the synthesis of glycans and glycoconjugates. However, high costs and limited availability of nucleotide sugars prevent applications of biocatalytic cascades on an industrial scale. Therefore, attentions on synthetic strategies of sugar nucleotides have been increasing to achieve their wide applications in various fields. The 9 common sugar nucleotides in mammals have been fully studied with large-scale synthesis through chemical, enzymatic (chemo-enzymatic) and cell factory strategies. In addition to common sugar nucleotides, many rare sugar nucleotides are present in plants and bacteria. Although unnatural sugar nucleotides cannot be synthesized in organisms, they have great potential in research as substrates for glycosyltransferases in carbohydrate synthesis, as enzyme inhibitors in biochemical studies, and as components of glycoconjugate biosynthesis. Therefore, increasing attention has been paid to explore the efficient synthesis of unnatural sugar nucleotides. Currently, strategies for chemical synthesis of sugar nucleotides have been greatly improved, such as the use of effective catalysts for forming pyrophosphate bonds and the development of entirely new synthesis protocols. Multiple sugar nucleotides, especially unnatural sugar nucleotides, are synthesized chemically. However, chemical synthesis requires tedious protection and deprotection steps, resulting in complex steps, high cost and low yield. In contrast, enzymatic (chemo-enzymatic) and cell factory methods have significant advantages such as high yield, easy operation and easy process scale-up in the preparation of sugar nucleotides. Hence, they are prominent strategies for sugar nucleotide preparation. Herein, the biosynthesis and application of sugar nucleotides are reviewed, mainly focusing on the 9 sugar nucleotides common in mammals. The early strategies for enzymatic synthesis of sugar nucleotides generally used de novo synthesis pathway. With the discoveries of enzymes involved in salvage pathway of sugar nucleotide synthesis and the development of one-pot multienzyme (OPME) method, the synthesis of sugar nucleotides was greatly simplified. Cell factory method employs the microbial living cells as a “processing plant” by engineering their metabolic pathways through genetic engineering technology. The cell factory method has high yield, and has been applied for efficient synthesis of several sugar nucleotides. Moreover, the strategy of gram-scale synthesis of multiple rare sugar nucleotides by cascade reactions from common sugar nucleotides using sugar nucleotides synthases cloned from different sources was illustrated. In recent years, the synthesis cost of sugar nucleotides has been further reduced through various ways, such as regeneration of nucleotides, regeneration of organic cofactors, and application of immobilized enzyme technology. Furthermore, through the continuous improvement of sugar nucleotide purification process, the use of high concentration of multi-enzyme cascade and rapid non-chromatographic purification process, the synthesis of multiple sugar nucleotides and their derivatives from monosaccharides was achieved, which gradually broke the limitations of the existing strategy. With the efficient synthesis of sugar nucleotides, their applications in various fields have been increasingly explored, including the synthesis of glycans and glycoconjugates, biochemical characterization of glycosyltransferases and bioorthogonal labeling strategies, which are of great significance to the research of biochemistry, glycobiology and the development of related pharmaceutical products.

Study on Variation Trend of Pre-treatment Blood Human Chorionic Gonadotropin in Predicting Efficacy of Tubal Pregnancy Treated by Drug Therapy / 广州中医药大学学报

Objective To investigate the role of variation trend of pre-treatment blood beta human chorionic gonadotropin(β-HCG)in predicting the efficacy of tubal pregnancy(TP)treated by drug therapy.Methods Clinical data of 380 TP patients treated by drug therapy at the First Affiliated Hospital of Guangzhou University of Chinese Medicine from January 2017 to June 2022 were collected.The patients were divided into 271 cases in the pure Chinese medicine(CM)treatment group(shortened as pure CM group)and 109 cases in the combination of Chinese medicine and western medicine group(shortened as combination group)according to the therapy.The relevant factors that may affect the outcomes of the therapy were analyzed,and logistic regression analysis was used for the control of confounding factors.The influences of pre-treatment β-HCG on the outcomes of TP treated by various therapies were investigated,and the value of variation trend of pre-treatment β-HCG in predicting the efficacy of TP treated by drug therapy was assessed using the receiver operating characteristic curve(ROC curve).Results(1)The results of univariate analysis showed that the initial value of blood β-HCG,the variation trend of β-HCG and the difference value of β-HCG detected for 2 times before treatment were correlated with the treatment outcomes in the pure CM group and the combination group,and the differences were all statistically significant(P＜0.05 or P＜0.01).(2)The results of multivariate regression analysis showed that in the pure CM group,the blood β-HCG values and the variation trend of β-HCG detected for 2 times before treatment were correlated with the treatment outcomes,and the differences were all statistically significant(P＜0.05 or P＜0.01);in the combination group,the menopausal time and blood β-HCG value detected at the second time before treatment were correlated with the treatment outcomes,and the differences were all statistically significant(P＜0.05).(3)After controlling for the confounding factors,the variation trend of pre-treatment β-HCG in the pure CM group was correlated with the treatment outcomes,and the difference was statistically significant(OR=3.35,95%CI being 1.69-6.65,P = 0.001).However,the variation trend of pre-treatment β-HCG in the combination group did not affect the treatment outcomes,and the difference was not statistically significant(P＞0.05).(4)The ROC curve analysis showed that the area under the curve(AUC)in the pure CM group was 0.74,the cutoff value was-0.14,the sensitivity was 71.3%and the specificity was 67.8%.The AUC in the combination group was 0.67,the cutoff value was 0.10,the sensitivity was 73.6%and the specificity was 60.7%.Conclusion The variation trend of pre-treatment blood β-HCG can effectively predict the efficacy of Chinese medicine for the treatment of TP,but has no value for predicting the efficacy of the combination of Chinese medicine and western medicine in treating TP.The variation value of pre-treatment blood β-HCG can be used as a valuable reference indicator for the early prediction of the outcomes of TP treated by drug therapy.

Advances of pathogenesis and drug development in amyotrophic lateral sclerosis / 中国药理学通报

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease affecting both upper and lower motor neurons. ALS patients develop progressive muscle atrophy, muscle weak and paralysis, finally died of respiratory failure. ALS is characterized by fast aggression and high mortality. What' s more, the disease is highly heterogeneous with unclear pathogenesis and lacks effective drugs for therapy. In this review, we summarize the main pathological mechanisms and the current drugs under development for ALS, which may provide a reference for the drug discovery in the future.

The mediating effect of perceived social support in the relationship between maternal personality traits and pregnancy-related anxiety / 中华预防医学杂志

Objective: Exploring the mediating effect of perceived social support between the maternal personality traits and pregnancy-related anxiety. Methods: Singleton pregnant women who underwent antenatal checkups in the obstetrics department of general hospital affiliated to Ningxia Medical University from July to December 2021 were enrolled in this study to investigate perceived social support, pregnancy-related anxiety and conscious personality traits. Pearson correlation analysis was used to analyze the association between the maternal personality traits, perceived social support, and pregnancy-related anxiety, and the mediating effect of perceived social support was analyzed using Bootstrap method. Results: A total of 1 259 subjects were included in the study, of which 170 (13.50%) pregnant women felt introverted. The total score of perceived social support was (46.37±8.38), and 31.45% of pregnant women had high perceived social support. The total score of pregnancy-related anxiety was (21.48±5.53). The score of worry about fetal health was (10.09±3.24), and 368 (29.23%) of pregnant women had pregnancy-related anxiety. Maternal personality traits and pregnancy-related anxiety were negatively correlated (r=-0.076, P<0.05) and positively correlated with perceived social support during pregnancy (r= 0.127, P<0.05). Perceived social support during pregnancy and pregnancy-related anxiety were negatively correlated (r=-0.236, P<0.05). Perceived social support partially mediated the relationship between the maternal personality traits and pregnancy-related anxiety, with a relative effect value of 37.50%. Conclusion: The maternal personality traits, level of perceived social support and pregnancy-related anxiety are all related. Perceived social support could mediate the relationship between the maternal personality traits and pregnancy-related anxiety.

Expression profile of microRNA secreted by rat condylar chondrocytes under tensile stress / 中华口腔医学杂志

Objective: To preliminarily explore the mechanism of tensile stress regulating endochondral osteogenesis of condyle by analyzing the expression profiles of significantly different microRNAs (miRNAs) in exosomes of rat mandibular condylar chondrocytes (MCC) under quiescent and cyclic tensile strain (CTS) conditions. Methods: Rat condylar chondrocytes were cultured under static and CTS conditions respectively (10 SD rats, male, 2 weeks old), and exosomes were extracted. The two groups of exosomes were named as control group and CTS group respectively. The differential expression miRNAs were screened by high-throughput sequencing. Bioinformatics analysis and prediction of target genes related to osteogenesis were performed by TargetScan and miRanda website. Results: The exosomes of rat condylar chondrocytes cultured under tensile stress showed a "double concave disc" monolayer membrane structure, the expression of CD9 and CD81 were positive, and the particle size distribution accorded with the characteristics of exosomes, which was consistent with that of static cultured rat condylar chondrocytes. A total of 85 miRNAs with significantly different expression were detected by high-throughput sequencing (P<0.05). The main biological processes and molecular functions of differential miRNAs were biological processes and protein binding, respectively. Kyoto Encyclopedia of Genes and Genomes (KEGG) database pathway enrichment analysis showed that there was significant enrichment in mammalian target of rapamycin (mTOR) signal pathway. The candidate target genes of miR-199a-5p include bone morphogenetic protein 3 (BMP3), endothelin converting enzyme 1, and miR-186-5p may target Smad8 and BMP3 to exert osteogenesis-related functions. Conclusions: Compared with static state, tensile stress stimulation can change the expression of miRNAs such as miR-199a-5p, miR-186-5p in the exocrine body of rat condylar chondrocytes, which can be considered as a mean to regulate the application potential of the exosomes.

Exploration of family rehabilitation model for children with scar contracture after hand burns / 中华烧伤杂志

Objective: To explore the family rehabilitation model for children with scar contracture after hand burns and observe its efficacy. Methods: A retrospective non-randomized controlled study was conducted. From March 2020 to March 2021, 30 children with scar contracture after deep partial-thickness to full-thickness burns of hands, who met the inclusion criteria, were hospitalized in the Burn Center of PLA of the First Affiliated Hospital of Air Force Medical University. According to the rehabilitation model adopted, 18 children (23 affected hands) were included in a group mainly treated by family rehabilitation (hereinafter referred to as family rehabilitation group), and 12 children (15 affected hands) were included in another group mainly treated by hospital rehabilitation (hereinafter referred to as hospital rehabilitation group). In the former group, there were 11 males and 7 females, aged (4.8±2.1) years, who began rehabilitation treatment (3.1±0.8) d after wound healing; in the latter group, there were 7 males and 5 females, aged (4.6±2.1) years, who began rehabilitation treatment (2.8±0.7) d after wound healing. The children in hospital rehabilitation group mainly received active and passive rehabilitation training in the hospital, supplemented by independent rehabilitation training after returning home; after 1-2 weeks of active and passive rehabilitation training in the hospital, the children in family rehabilitation group received active and passive rehabilitation training at home under the guidance of rehabilitation therapists through WeChat platform. Both groups of children were treated for 6 months. During the treatment, they wore pressure gloves and used hand flexion training belts and finger splitting braces. Before treatment and after 6 months of treatment, the modified Vancouver scar scale, the total active movement of the hand method, and Carroll quantitative test of upper extremity function were used to score/rate the scar of the affected hand (with the difference of scar score between before treatment and after treatment being calculated), the joint range of motion (with excellent and good ratio being calculated), and the function of the affected limb, respectively. Data were statistically analyzed with independent sample t test, equivalence test, Fisher's exact probability test, and Mann-Whitney U test. Results: The differences of scar scores of the affected hands of children in family rehabilitation group and hospital rehabilitation group between after 6 months of treatment and those before treatment were 3.0 (2.0, 7.0) and 3.0 (2.0, 8.0) respectively (with 95% confidence interval of 2.37-5.38 and 1.95-5.91). The 95% confidence interval of the difference between the differences of the two groups was -2.43-2.21, which was within the equivalent boundary value of -3-3 (P<0.05). The excellent and good ratios of joint range of motion of the affected hand of children in family rehabilitation group and hospital rehabilitation group were 3/23 and 2/15 respectively before treatment, and 15/23 and 12/15 respectively after 6 months of treatment. The ratings of joint range of motion of the affected hand of children in family rehabilitation group and hospital rehabilitation group after 6 months of treatment were significantly higher than those before treatment (with Z values of 3.58 and 2.30, respectively, P<0.05), but the ratings of joint range of motion of the affected hand between the two groups were similar before treatment and after 6 months of treatment (with Z values of 0.39 and 0.55, respectively, P>0.05). The functional ratings of the affected limbs of children in family rehabilitation group and hospital rehabilitation group after 6 months of treatment were significantly higher than those before treatment (with Z values of 3.98 and 3.51, respectively, P<0.05), but the functional ratings of the affected limbs between the two groups were similar before treatment and after 6 months of treatment (with Z values of 1.27 and 0.38, respectively, P>0.05). Conclusions: The WeChat platform assisted rehabilitation treatment with mainly family rehabilitation, combined with hand flexion and extension brace can effectively reduce the scarring after children's hand burns, improve the joint range of motion of the affected hands, and promote the recovery of affected limb function. The effect is similar to that of hospital-based rehabilitation providing an optional rehabilitation, treatment method for children who cannot continue to receive treatment in hospital.

Chemical components of Magnoliae Officinalis Cortex of different origins and with different tree ages before and after being processed with ginger juice:a qualitative and quantitative analysis / 中国中药杂志

This study aimed to investigate the impact of ginger juice on chemical profile of Magnoliae Officinalis Cortex(MOC) when they were processed together. Ultra-high-performance liquid chromatography coupled to quadrupole-orbitrap high-resolution mass spectrometry(UHPLC-Q-Orbitrap HRMS) was used for qualitative analysis of the chemical component of MOC samples before and after being processed with ginger juice. UPLC was performed to observe the content variation of eight main components in processed MOC. A total of 174 compounds were identified or tentatively deduced from processed and unprocessed MOC samples according to MS data obtained in positive and negative ion mode. After MOC was processed with ginger juice, the peak areas of most phenolics increased, while the peak areas of most phenylethanoid glycosides decreased; as for neolignans, oxyneolignans, other lignans and alkaloids, changes in the peak area were variable, and the peak areas of terpenoid-lignans varied little. Additionally, gingerols and diarylheptanoids were only detected in the processed MOC sample. The contents of syringin, magnoloside A, and magnoloside B decreased significantly in the processed MOC sample while no significant difference was observed in the contents of magnoflorine, magnocurarine, honokiol, obovatol, and magnolol. This study comprehensively explored the content variation of chemical components in processed and unprocessed MOC samples derived from different regions and with different tree ages using UPLC and UHPLC-Q-Orbitrap HRMS, and summarized the variation characteristics of various compounds. The results provide a data foundation for further research on pharmacodynamic substances of MOC processed with ginger juice.

Quality of moxa from Artemisia argyi and A. stolonifera in different storage years based on simultaneous thermal analysis / 中国中药杂志

The quality of moxa is an important factor affecting moxibustion therapy, and traditionally, 3-year moxa is considered optimal, although scientific data are lacking. This study focused on 1-year and 3-year moxa from Artemisia stolonifera and A. argyi(leaf-to-moxa ratio of 10∶1) as research objects. Scanning electron microscopy(SEM), Van Soest method, and simultaneous thermal analysis were used to investigate the differences in the combustion heat quality of 1-year and 3-year moxa and their influencing factors. The results showed that the combustion of A. stolonifera moxa exhibited a balanced heat release pattern. The 3-year moxa released a concentrated heat of 9 998.84 mJ·mg~(-1)(accounting for 54% of the total heat release) in the temperature range of 140-302 ℃, with a heat production efficiency of 122 mW·mg~(-1). It further released 7 512.51 mJ·mg~(-1)(accounting for 41% of the total heat release) in the temperature range of 302-519 ℃. The combustion of A. argyi moxa showed a rapid heat release pattern. The 3-year moxa released a heat of 16 695.28 mJ·mg~(-1)(accounting for 70% of the total heat release) in the temperature range of 140-311 ℃, with an instantaneous power output of 218 mW·mg~(-1). It further released 5 996.95 mJ·mg~(-1)(accounting for 25% of the total heat release) in the temperature range of 311-483 ℃. Combustion parameters such as-R_p,-R_v, D_i, C, and D_b indicated that the combustion heat quality of 3-year moxa was superior to that of 1-year moxa. It exhibited greater combustion heat, heat production efficiency, flammability, mild and sustained burning, and higher instantaneous combustion efficiency. This study utilized scientific data to demonstrate that A. stolonifera could be used as excellent moxa, and the quality of 3-year moxa surpassed that of 1-year moxa. The research results provide a scientific basis for the in-depth development of A. stolonifera moxa and the improvement of moxa quality standards.

Treatment of degenerative mitral regurgitation with China-made JensClip transcatheter repair system:a case report / 中国介入心脏病学杂志

Mitral regurgitation(MR)is a common valvular heart disease in China,the prevalence of which increases with age,and most patients present with a wide range of cardiac or non-cardiac comorbidities.Transcatheter mitral valve edge-to-edge repair(TEER)has become a guideline-recommended,safe and effective treatment option for patients with severe primary or secondary mitral regurgitation.With the rapid development of TEER technology in China,relevant devices have been developed and approved for clinical trials,including the self-designed and manufactured JensClip system,which adopts a unique slider locking design to realize the innovation of mitral clip locking mode.Here we reported a case of JensClip device in treatment of a patient with degenerative mitral regurgitation(DMR).

A systematic review and meta-analysis comparing cardiac CT angiography with transesophageal echocardiography in planning left atrial appendage closure / 中国介入心脏病学杂志

Objective To systematically evaluate the differences in preoperative planning for left atrial appendage closure(LAAC)using cardiac CT angiography(CCTA)and transesophageal echocardiography(TEE).Methods Relevant studies comparing CCTA and TEE for preoperative assessment of LAAC published from the inception of each database to July 18,2023,were searched in PubMed,EMBASE,the Cochrane Library,CNKI,Wanfang,and CBM database.Meta-analysis was performed using RevMan 5.4 and Stata 15.1.Results A total of 21 studies with 2 137 patients were included.Compared to TEE,preoperative CCTA measurement of the left atrial appendage(LAA)showed a larger maximum diameter(MD 2.27 mm,95％CI 1.70-2.83,P＜0.001)and higher accuracy in predicting occlusion device(RR 1.67,95％CI 1.39-2.01,P＜0.001).Subgroup analysis based on whether 3D reconstruction was performed and occlusion device type showed similar results.There was no statistically significant difference in the surgical success rate(RR 1.03,95％CI 0.98-1.08,P=0.230)between the two imaging methods.Additionally,preoperative 3D reconstruction based on CCTA resulted in fewer occlusion devices used(MID-0.29,95％CI-0.53--0.04,P=0.020),less contrast agent usage(MD-4.48 ml,95％CI-7.40—-1.56,P=0.003),shorter operative time(MD-14.98 min,95％CI-17.79—-12.17,P＜0.001),and a lower rate of postoperative residual leakage(RR 0.59,95％CI 0.36-0.99,P=0.040).Conclusions Compared to TEE,preoperative CCTA for LAAC improves the accuracy of occlusion device prediction.3D reconstruction based on CCTA reduces the occlusion devices used and the usage of contrast agents,shortens the operative time,improves surgical efficiency,and is associated with a lower rate of postoperative residual leakage.Therefore,CCTA has more advantages in preoperative planning for LAAC.

Simultaneous determination of six constituents in Xiao'er Qingyan Granules by HPLC / 中成药

AIM To establish an HPLC method for the simultaneous content determination of monocaffeyltartaric acid,forsythiaside A,chicoric acid,phillyrin,arctiin and harpagoside in Waigan Fenghan Granules.METHODS The analysis of 70%methanol extract of this drug was performed on a 30℃thermostatic Agilent Zorbax SB-C18 column(250 mm×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 278,330 nm.RESULTS Six constituents showed good linear relationships within their own ranges(r≥0.999 4),whose average recoveries were 96.80%-102.61%with the RSDs of 0.26%-1.93%.CONCLUSION This simple and accurate method can be used for the quality control of Xiao'er Qingyan Granules.

Epidemiological characteristics of allergic rhinitis and its correlation with serum IFN-γ and IL-4 levels / 公共卫生与预防医学

Objective To analyze the epidemiological characteristics of AR and its correlation with serum IFN-γ and IL-4 levels in Bazhong City, and to provide theoretical basis for clinical prevention and treatment of AR. Methods Adopt the method of multistage stratified random survey from January 2019 to January 2020 bazhong 3 armour hospital otolaryngology seeing a doctor , with face to face questionnaire survey form the people generally, AR number of statistics, the main clinical symptoms and related symptoms, AR merger disease situation, according to the illness severity was divided into mild and moderately severe group, Five mL of elbow venous blood was extracted from AR patients, and 22 kinds of allergens were determined by using the allergen-specific IgE antibody detection kit (western blot). Serum IFN-γ and IL-4 levels were determined by enzyme-linked immunosorbent assay. Pearson correlation analysis was performed on serum IFN-γ and IL-4 levels and severity of allergic rhinitis. Results Among 1 243 patients who completed the questionnaire, the prevalence of AR was 275 (22.12%). There was significant difference in the prevalence of AR among different age groups (χ2=6.809 , P2=7.914 , P<0.0) and the prevalence of AR in workers was the highest (26.48%). Among 275 AR patients in Bazhong City, 153 cases (55.64%) had seasonal allergic rhinitis and 122 cases (44.36%) had perennial allergic rhinitis. The main clinical symptoms of AR patients were sneezing in 234 cases (85.09%) and nasal obstruction in 197 cases (71.64%). AR combined with bronchial asthma in 59 cases (21.45%), conjunctivitis in 28 cases (10.18%); the peak of AR incidence was mainly in July. Among 22 allergens, dust mite was the most common allergen in 139 cases (50.55%), followed by penicillin in 56 cases (20.36%). The main inducing factors were pollen 112 cases (40.73%) and cold 98 cases (35.64%). According to the severity of the disease, they were divided into mild group (n=178) and moderate to severe group (n=97). The serum IL-4 level in moderate and severe groups was significantly higher than that in mild group (P<0.05). The serum IFN-γ level in moderate and severe groups was significantly lower than that in mild group (P<0.05). Pearson correlation analysis showed that il-4 level was positively correlated with disease severity (r=0.492, P<0.05). IFN-γ was negatively correlated with the severity of the disease (r=-0.459, P<0.05). Conclusion The prevalence of AR is high in Bazhong city, and the main clinical symptom is sneezing. Among the complications, bronchial asthma is the most common. Colds and weather changes are the main factors causing AR.

Current status of early nutritional support in patients with severe acute pancreatitis complicated with intestinal fistula / 肠外与肠内营养

Objective:To investigate the current status of early nutritional support treatment in patients with severe acute pancreatitis complicated with intestinal fistula,and analyze the impact on the clinical outcomes of patients.Methods:Retrospective analysis was used to select the relevant data of 60 ICU admission patients with severe acute pancreatitis complicated with intestinal fistula of a tertiary hospital in Nanjing from May 2022 to May 2023,the statistics analysis of the patients'early nutritional support treatment were carried out,and explored the impact on clinical outcomes of patients.Results:A total of 45(75％)and 57(95％)patients started EN and PN treatment within 48 h of admission.The EEN calorie compliance rate after admission of 1 week was 44.2％.There was a difference in mechanical ventilation time and hospitalization expenses between the early enteral nutrition calorie group and non-compliance group,but no significant difference in the length of ICU stay(P＞0.005).Conclusion:The early enteral nutrition compliance rate of patients with severe acute pancreatitis combined with intestinal fistula is slightly lower.Compared with the early enteral nutrition non-compliance group,the enteral nutrition standard group has shorter mechanical ventilation time and lower total hospitalization costs,which can improve the clinical outcome of patients.

Preliminary study on the relationship between biological rhythm changes and pregnancy complications during pregnancy / 中华预防医学杂志

To study the characteristics of heart rate rhythm in pregnant women at different trimester of pregnancy, and to explore the relationship between the basic rhythm of heart rate and pregnancy complications. Thirteen pregnant women who were diagnosed with normal early pregnancy in the Reproductive Center of the Second Affiliated Hospital of Soochow University from June 2018 to December 2019 were prospectively selected. Personal files were created and the heart rate data of pregnancy women was collected 24 hours a day by wearable devices until delivery. Prenatal examination and pregnancy outcomes were surveyed at follow-up. The cosine analysis method and the designed statistical module were used to analyze the long-term rhythm of pregnant women's heart rate. The heart rate of pregnant women showed a significant rhythm at different gestational weeks. Compared with the gestational week of 12, the midline-estimating statistic of rhythm(MESOR) increased significantly at the gestational week of 28 and 32 (t=-2.751,P=0.013;t=-2.314,P=0.032).The phase of rhythm shifted from 14∶00 pm in the first trimester of pregnancy (12 weeks) to 16∶00 pm in the second trimester (24 weeks) (t=2.613,P=0.018) and returned to 14∶00 pm at the third trimester (32 weeks) (t=-2.176,P=0.046). Season had no significant effect on the changes of MESOR, amplitude and phase of maternal heart rate in the first trimester (t=-0.356,P=0.729;t=-0.777,P=0.464;t=-0.434,P=0.673), while season had no significant effect on the changes of MESOR, amplitude and phase in the third trimester (t=-0.663,P=0.532;t=-0.209,P=0.841;t=0.625,P=0.592). The heart rate of one pregnant woman with natural delivery had rhythm disorder from the start of labor to delivery. The heart rate of one pregnant woman with premature rupture of membranes showed rhythm disorder before and after the rupture of membranes, and smaller amplitude. Rhythm disturbance may play a suggestive role in preterm delivery and labor initiation. In conclusion, pregnancy may cause changes in the internal heart rate rhythm. Maternal internal rhythm disturbance may occur when delivery or premature rupture of membranes occurs. The heart rate rhythm of pregnant women may be related to some common complications of pregnancy such as premature rupture of membranes.

The connotation of universal health management and its implementation in the context of Healthy China Strategy / 中华预防医学杂志

In the context of the implementation of Healthy China Strategy, universal health management is an effective approach to promote the construction of the chain of social health governance system of"prevention, treatment, and management". This paper composes the connotations and main characteristics of universal health management from five aspects: coverage, resource input, service content, management mode, and expected results, with a view to providing reference for the clarification of the connotation of universal health management and related practices.

Preliminary study on the relationship between biological rhythm changes and pregnancy complications during pregnancy / 中华预防医学杂志

To study the characteristics of heart rate rhythm in pregnant women at different trimester of pregnancy, and to explore the relationship between the basic rhythm of heart rate and pregnancy complications. Thirteen pregnant women who were diagnosed with normal early pregnancy in the Reproductive Center of the Second Affiliated Hospital of Soochow University from June 2018 to December 2019 were prospectively selected. Personal files were created and the heart rate data of pregnancy women was collected 24 hours a day by wearable devices until delivery. Prenatal examination and pregnancy outcomes were surveyed at follow-up. The cosine analysis method and the designed statistical module were used to analyze the long-term rhythm of pregnant women's heart rate. The heart rate of pregnant women showed a significant rhythm at different gestational weeks. Compared with the gestational week of 12, the midline-estimating statistic of rhythm(MESOR) increased significantly at the gestational week of 28 and 32 (t=-2.751,P=0.013;t=-2.314,P=0.032).The phase of rhythm shifted from 14∶00 pm in the first trimester of pregnancy (12 weeks) to 16∶00 pm in the second trimester (24 weeks) (t=2.613,P=0.018) and returned to 14∶00 pm at the third trimester (32 weeks) (t=-2.176,P=0.046). Season had no significant effect on the changes of MESOR, amplitude and phase of maternal heart rate in the first trimester (t=-0.356,P=0.729;t=-0.777,P=0.464;t=-0.434,P=0.673), while season had no significant effect on the changes of MESOR, amplitude and phase in the third trimester (t=-0.663,P=0.532;t=-0.209,P=0.841;t=0.625,P=0.592). The heart rate of one pregnant woman with natural delivery had rhythm disorder from the start of labor to delivery. The heart rate of one pregnant woman with premature rupture of membranes showed rhythm disorder before and after the rupture of membranes, and smaller amplitude. Rhythm disturbance may play a suggestive role in preterm delivery and labor initiation. In conclusion, pregnancy may cause changes in the internal heart rate rhythm. Maternal internal rhythm disturbance may occur when delivery or premature rupture of membranes occurs. The heart rate rhythm of pregnant women may be related to some common complications of pregnancy such as premature rupture of membranes.

The connotation of universal health management and its implementation in the context of Healthy China Strategy / 中华预防医学杂志

In the context of the implementation of Healthy China Strategy, universal health management is an effective approach to promote the construction of the chain of social health governance system of"prevention, treatment, and management". This paper composes the connotations and main characteristics of universal health management from five aspects: coverage, resource input, service content, management mode, and expected results, with a view to providing reference for the clarification of the connotation of universal health management and related practices.

Ginsenoside Rgl inhibits neuronal ferroptosis caused by ischemic stroke through activating of Nrf2/xCT/GPX4 axis / 中国药理学通报

Aim To study the inhibitory effect of ginsenoside Rgl on neuronal ferroptosis after ischemic stroke and its mechanism. Methods A model of oxygen glucose deprivation/reoxygenation (OGD/R) was established in HT22 cells, and the effect of Rgl on the viability of HT22 cells after OGD/R injury was detected by CCK-8. The effect of Rgl on ferroptosis in HT22 cells after OGD/R injury was detected by the test of ferroptosis markers GSH/GSSG, SOD, MDA, and Fe