1.Spicy food consumption and risk of vascular disease: Evidence from a large-scale Chinese prospective cohort of 0.5 million people.
Dongfang YOU ; Dianjianyi SUN ; Ziyu ZHAO ; Mingyu SONG ; Lulu PAN ; Yaqian WU ; Yingdan TANG ; Mengyi LU ; Fang SHAO ; Sipeng SHEN ; Jianling BAI ; Honggang YI ; Ruyang ZHANG ; Yongyue WEI ; Hongxia MA ; Hongyang XU ; Canqing YU ; Jun LV ; Pei PEI ; Ling YANG ; Yiping CHEN ; Zhengming CHEN ; Hongbing SHEN ; Feng CHEN ; Yang ZHAO ; Liming LI
Chinese Medical Journal 2025;138(14):1696-1704
BACKGROUND:
Spicy food consumption has been reported to be inversely associated with mortality from multiple diseases. However, the effect of spicy food intake on the incidence of vascular diseases in the Chinese population remains unclear. This study was conducted to explore this association.
METHODS:
This study was performed using the large-scale China Kadoorie Biobank (CKB) prospective cohort of 486,335 participants. The primary outcomes were vascular disease, ischemic heart disease (IHD), major coronary events (MCEs), cerebrovascular disease, stroke, and non-stroke cerebrovascular disease. A Cox proportional hazards regression model was used to assess the association between spicy food consumption and incident vascular diseases. Subgroup analysis was also performed to evaluate the heterogeneity of the association between spicy food consumption and the risk of vascular disease stratified by several basic characteristics. In addition, the joint effects of spicy food consumption and the healthy lifestyle score on the risk of vascular disease were also evaluated, and sensitivity analyses were performed to assess the reliability of the association results.
RESULTS:
During a median follow-up time of 12.1 years, a total of 136,125 patients with vascular disease, 46,689 patients with IHD, 10,097 patients with MCEs, 80,114 patients with cerebrovascular disease, 56,726 patients with stroke, and 40,098 patients with non-stroke cerebrovascular disease were identified. Participants who consumed spicy food 1-2 days/week (hazard ratio [HR] = 0.95, 95% confidence interval [95% CI] = [0.93, 0.97], P <0.001), 3-5 days/week (HR = 0.96, 95% CI = [0.94, 0.99], P = 0.003), and 6-7 days/week (HR = 0.97, 95% CI = [0.95, 0.99], P = 0.002) had a significantly lower risk of vascular disease than those who consumed spicy food less than once a week ( Ptrend <0.001), especially in those who were younger and living in rural areas. Notably, the disease-based subgroup analysis indicated that the inverse associations remained in IHD ( Ptrend = 0.011) and MCEs ( Ptrend = 0.002) risk. Intriguingly, there was an interaction effect between spicy food consumption and the healthy lifestyle score on the risk of IHD ( Pinteraction = 0.037).
CONCLUSIONS
Our findings support an inverse association between spicy food consumption and vascular disease in the Chinese population, which may provide additional dietary guidance for the prevention of vascular diseases.
Humans
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Male
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Female
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Prospective Studies
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Middle Aged
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Aged
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Vascular Diseases/etiology*
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Risk Factors
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China/epidemiology*
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Adult
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Proportional Hazards Models
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Cerebrovascular Disorders/epidemiology*
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East Asian People
2.Data Mining of Professor Zhang Farong's Core Prescription for Type 2 Diabetes Mellitus and Its Clinical Efficacy
Wei FANG ; Jie XU ; Huanping WANG ; Xiaoran ZHANG ; Hongxia ZHU ; Qiu CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):174-182
ObjectiveTo explore the medication patterns of Professor Zhang Farong in treating type 2 diabetes mellitus (T2DM) and the clinical efficacy of his core prescription. MethodsClinical case records of T2DM treated by Professor Zhang Farong were collected to establish a prescription database. Frequency statistics, visual analysis, and factor analysis were employed to investigate the characteristics and principle of the prescriptions, and a core prescription was derived. A randomized controlled trial was conducted, enrolling 60 T2DM patients with the dampness-heat syndrome. The patients were allocated into an observation group (core prescription + metformin) and a control group (metformin alone), with both groups undergoing a 12-week treatment course. Changes in TCM symptom scores, glucose metabolism indicators [fasting plasma glucose (FPG), 2-hour postprandial blood glucose (2 hPG), and glycated hemoglobin (HbA1c)], pancreatic function indicators [fasting C-peptide (FCP), 2-hour postprandial C-peptide (2 hCP), and area under the C-peptide curve (AUCcp)], and lipid profiles were measured before and after treatment. The adverse reactions were observed and recorded. ResultsA core prescription named modified Gegen Qinlian Decoction was formulated, comprising Puerariae Lobatae Radix, Coptidis Rhizoma, Scutellariae Radix, Astragali Radix, Lycii Cortex, Mori Cortex, Jineijin Endothelium Corneum Gigeriae Galli, Rehmanniae Radix Praeparata, Atractylodis Rhizoma, Polygonati Rhizoma, and Pogostemonis Herba. The clinical trial results showed that both groups had significantly decreased FPG, 2 hPG, and HbA1c (P0.05), and the observation group outperformed the control group in recovering the level of HbA1c (P0.05). After treatment, both groups had declined TCM symptoms scores (P0.05), and the declines in the observation group were larger than those in the control group (P0.05). After treatment, the TC and LDL-C levels declined in the observation group (P 0.05), while the lipid levels showed a decreasing trend with no statistically significant difference in the control group. After treatment, both groups showed increases in FCP and AUCcp (P0.05), and the 2 hCP in both groups presented a recovering trend with no statistically significant difference. There was no statistically significant difference in the incidence of adverse reactions between the two groups. ConclusionModified Gegen Qinlian Decoction embodies Professor Zhang Farong's academic philosophy of treating consumptive thirst by tonifying the spleen and kidney, replenishing Qi and Yin, clearing deficiency and heat, unblocking stasis in collaterals, and addressing both deficiency and stasis. The combination of the core prescription with metformin alleviates clinical symptoms in T2DM patients with the dampness-heat syndrome, demonstrating potential effects in restoring pancreatic islet function, regulating blood glucose, and improving lipid profiles. It serves as a therapeutic option for T2DM in the patients with the dampness-heat syndrome under syndrome differentiation, meriting broader clinical application.
3.A self-controlled study on endotracheal tube cuff pressure management modes.
Yanxin LIU ; Yanhong GAO ; Xingli ZHAO ; Hongxia LI ; Baojun SUN ; Xiangqun FANG ; Zhijian ZHANG
Chinese Critical Care Medicine 2025;37(4):348-353
OBJECTIVE:
To explore the effects of different endotracheal tube cuff pressure management modes on cuff sealing and the pressure exerted on the tracheal wall.
METHODS:
A prospective self-controlled study was conducted. Eleven patients undergoing endotracheal intubation and mechanical ventilation with an automatic airway management system (AGs) admitted to the Second Medical Centre of the Chinese People's Liberation Army General Hospital from October 1, 2020, to April 1, 2022, were enrolled as the study subjects. Within 24 hours after the establishment of artificial airway and mechanical ventilation, four cuff pressure management modes were randomly applied to each patient for 24 hours in sequence: automatic cuff pressure management mode [modeI: the safe range of cuff pressure was set at 20-35 cmH2O (1 cmH2O≈0.098 kPa), and the CO2 pressure above the endotracheal tube cuff was automatically detected by AGs every 5 minutes to determine the cuff sealing status, and the cuff pressure was automatically adjusted], constant cuff pressure (25 cmH2O) management mode (mode II: the cuff pressure was monitored by AGs through a pressure sensor, and the cuff pressure was maintained at 25 cmH2O via a pressure pump), constant cuff pressure (30 cmH2O) management mode (mode III: the cuff pressure was monitored by AGs through a pressure sensor, and the cuff pressure was maintained at 30 cmH2O via a pressure pump), and manual cuff pressure management mode (mode IV: the cuff pressure was manually measured by nurses every 6-8 hours using a cuff pressure gauge to keep the cuff pressure at 25-30 cmH2O after inflation). The CO2 pressure above the endotracheal tube cuff (at 60-minute intervals) and the cuff pressure changes (at 50-ms intervals) were recorded to compare the differences in number of cuff leaks [no leak was defined as CO2 pressure = 0, small leak as 0 < CO2 pressure < 2 mmHg (1 mmHg≈0.133 kPa), and large leak as CO2 pressure ≥ 2 mmHg] and cuff pressure among modesI-IV.
RESULTS:
A total of 24 CO2 pressure measurements were taken per patient across the four modes, resulting in a total of 264 detections for each mode. Regarding the cuff leak, the total number of leak and large leak in modeIwas significantly lower than that in modes II-IV [total leak: 30 cases (11.36%) vs. 81 cases (30.68%), 70 cases (26.52%), 103 cases (39.02%); large leak: 15 cases (5.68%) vs. 50 cases (18.94%), 48 cases (18.18%), 66 cases (25.00%), all P < 0.05]. There was no significant difference in the number of cuff leak between modes II and III, and mode IV had the most severe cuff leak. In terms of cuff pressure, since mode IV required blocking the cuff tube from the AGs tube and the AGs cuff pressure management module did not actually work, real-time monitoring of cuff pressure was not possible. Therefore, cuff pressure changes were only analyzed in modes I-III. Each of the 11 patients underwent 24-hour cuff pressure monitoring under modes I-III, with 19 008 000 monitoring times for each mode. The cuff pressure in mode I was between that in modes II and III [cmH2O: 27.09 (26.10, 28.14) vs. 26.60 (25.92, 27.47), 31.01 (30.33, 31.88), both P < 0.01]. Moreover, the number of extreme values of cuff pressure > 50 cmH2O in mode I was significantly lower than that in modes II and III [19 900 cases (0.105%) vs. 22 297 cases (0.117%), 27 618 cases (0.145%), both P < 0.05].
CONCLUSION
Dynamically monitoring the CO2 pressure above the cuff to guide the adjustment of endotracheal tube cuff pressure can achieve better cuff sealing with a relatively lower cuff pressure load.
Humans
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Intubation, Intratracheal/instrumentation*
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Pressure
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Prospective Studies
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Respiration, Artificial
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Male
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Airway Management/methods*
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Female
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Middle Aged
4.Determination of Eight Lignans in Schisandrae Sphenantherae Fructus on the Market from Different Habitats by UPLC-MS/MS
Lianhao GAO ; Hongwei LI ; Junling WANG ; Xiuping LI ; Zhewei FANG ; Qian XIONG ; Hongxia LIU ; Jinsi YANG ; Rong MA ; Mengxian LI
Chinese Journal of Modern Applied Pharmacy 2024;41(4):520-523
OBJECTIVE
To compare the contents of schizandrin A, schizandrin B, schizandrin C, schisandrol A, schisandrol B, schisantherin A, anwuligan, and schisanhenol in Schisandrae Sphenantherae Fructus on market from 12 habitats.
METHODS
The samples were pre-treated by 96-well fitration plates. The assay was performed on ACE EXCEL 1.7 C18-AMIDE(100 mm×2.1 mm, 1.7 μm) column with 0.1% formic acid-water(A) and methanol(B), gradient elution, flow speed was 0.4 mL·min–1. Ion source was electric spray ion source, positive ion monitoring mode, multireaction monitoring mode for quantitative analysis. Linear, instrument precision, stability, repeatability, average recovery were investigated.
RESULTS
The content of schisantherin A in 10 of 12 producing areas reached the standard of ≥0.2% of Schisandrae Sphenantherae Fructus in 2020 Edition of Chinese Pharmacopoeia.
CONCLUSION
UHPLC-MS/MS is suitable for simultaneous determination of multiple components in Schisandrae Sphenantherae Fructus. The Schisandrae Sphenantherae Fructus in the market basically meet the national legal standards.
5.Clinical evaluation of preoperative nasal spray of low-dose dexmedetomidine in elderly patients by heart rate variability analysis
Yi FANG ; Hongxia LIU ; Yuhan HUANG ; Luyang MIAO ; Dai SHEN
Journal of Practical Stomatology 2024;40(1):87-90
Objective:To study the effects of low-dose dexmedetomidine via nasal spray on preoperative anxiety and tracheal intuba-tion induced stress response in elderly patients with maxillofacial surgery using heart rate variability(HRV).Methods:60 elderly pa-tients underwent maxillofacial surgery were randomly divided into the dexmedetomidine group(group D)and the control group(group C).Patients in the group D were treated with nasal spray of dexmedetomidine at 45 min preoperatively.Those in the group C were giv-en the same dose of normal saline spray at the same time.All patients were given intravenous combined with inhalation general anes-thesia.The hemodynamics,HRV index,sedation score and BIS value of the 2 groups of patients were compared at 3 time points,be-fore operation(T0),entrance(T1)and tracheal intubation(T2)respectively.Results:At T1,the average score of Ramsay in group D and group C was 2.8±0.7 and 1.1±0.39,BIS 87.3±6.1 and 97.4±0.5,SD1 20.9±7.0 and 15.4±5.4,SDNN 30.9±6.6 and 37.1±7.0,LF/HF 1.3±0.3 and 2.6±0.4,respectively(P<O.01).At T2,the average score of SD1 in group D and group C was 10.4±3.5 and 7.7±3.1,SDNN 59.2±6.5 and 70.1±7.1,LF/HF 5.l±0.5 and 7.5±0.5,respectively(P<0.01).Conclusion:Low-dose dexmedetomidine nasal spray can effectively relieve the preoperative anxiety of elderly patients in maxillofacial surgery and reduce the stress response of tracheal intubation.
6.Efficiency and safety of belimumab in the treatment of lupus nephritis in Chinese adults:a meta-analysis
Bojiang LI ; Hongxia PAN ; Yixing FU ; Meirong FANG ; Xiang HU ; Jianhua DONG ; Youwen XIAO
China Pharmacy 2024;35(7):853-859
OBJECTIVE To systematically evaluate the real-world effectiveness and safety of belimumab in the treatment of lupus nephritis (LN) in Chinese adult patients. METHODS Retrieved from PubMed, Embase, Web of Science, Cochrane Library, Wanfang data, CNKI, VIP and CBM, real-world studies on belimumab in the treatment of LN in Chinese adult patients were collected from the inception to July 7th, 2023. Two reviewers independently screened the literature, extracted data, and assessed the quality of the included studies. Meta-analysis was then performed using RevMan 5.3 software. RESULTS A total of 10 real- world studies were included, involving 253 Chinese adult patients with LN. The results of the meta-analysis demonstrated that the complete renal response rate, partial renal response rate, and the incidence of adverse reaction rate in Chinese adult patients with LN treated with belimumab were 61% (95%CI was 46%-76%, P<0.000 01), 23%(95%CI was 2%-44%, P=0.03), and 30% (95%CI was 16%-43%, P<0.000 01), respectively. Belimumab could reduce the 24-hour urinary protein (MD=-1.71, 95%CI was -3.02--0.40, P=0.01), urine protein-creatinine ratio (MD=-1.76,95%CI was -2.06--1.46,P<0.000 01), the systemic lupus erythematosus disease activity index (MD=-8.63, 95%CI was -12.12--5.13, P<0.000 01), and glucocorticoids dosage (MD=-18.65, 95%CI was -31.82--5.48, P=0.006). In addition, it could elevate the levels of complement C3 (MD=0.19, 95%CI was 0.08-0.30, P=0.000 6) and complement C4 (MD=0.06, 95%CI was 0.02-0.09, P=0.001). However, belimumab could not improve the levels of serum creatinine and estimated glomerular filtration rate (P>0.05). CONCLUSIONS Belimumab has good efficacy and safety in Chinese adult patients with LN.
7.The current situation and influencing factors of patient perception for humanistic care in 30 provincial hospitals
Fengjian ZHANG ; Haixin ZHANG ; Yilan LIU ; Shaoshan PAN ; Shujie GUO ; Xia XIN ; Yan YANG ; Huiqin XI ; Xiue LI ; Yuanjuan CHENG ; Beirong MO ; Weihua LI ; Xiaohong ZHANG ; Fang WANG ; Hongxia WANG
Chinese Journal of Nursing 2024;59(3):324-330
Objective To understand the current status and influencing factors of patient perception for humanistic care in China hospitals,and to provide a basis for developing nursing humanistic care measures and improving the quality of nursing humanistic care services.Methods A total of 30,099 outpatients and inpatients from 107 hospitals in 30 provinces(autonomous regions and municipalities)from July to August 2022 as survey subjects.A general information questionnaire and the Relational Caring Questionnaire-Patient Form were used for a cross-sectional survey,and a single-factor analysis was used to analyze the influencing factors of patient relationship care.Results Finally,29 108 valid questionnaires were collected,and the effective questionnaire recovery rate was 96.7%.The patient evaluation of relationship care was(65.72±8.61)points.Single-factor analysis showed that gender,age,marital status,children's situation,education level,occupation,place of residence,average family income,medical insurance type,visiting department,and location of the visiting hospital,and whether or not surgery were influencing factors of patient relationship care(P<0.05).Conclusion The evaluation score of caregiver-patient relationship care among Chinese hospital patients is above average,but there is still room for improvement in western and rural regions,seriously ill and outpatient patients,low-income and low-medical insurance reimbursement populations,and non-surgical patients.Medical institutions at all levels should optimize and improve nursing humanistic care services based on influencing factors,and further enhance patients'perception of nursing humanistic care.
8.Expression and diagnostic value of lymphocyte subsets and activation status in non-Hodgkin's lymphoma-associated hemophagocytic lymphohistiocytosis
Guangli YIN ; Jujuan WANG ; Tian TIAN ; Limin DUAN ; Xin GAO ; Ziwei FANG ; Ji XU ; Hongxia QIU ; Lei FAN
Chinese Journal of Hematology 2024;45(8):748-754
Objective:To determine the expression and diagnostic value of peripheral blood lymphocytes and functional activation status in non-Hodgkin lymphoma with hemophagocytic lymphohistiocytosis (NHL-HLH) .Methods:We retrospectively analyzed clinical data from 30 newly diagnosed NHL-HLH patients admitted to Jiangsu Province Hospital from September 2022 to September 2023. We assessed peripheral blood lymphocytes and activation status by flow cytometry. Forty newly diagnosed patients with NHL who received treatment at our hospital during the same period and had lymphocyte and functional activation indexes were selected as the control group. The differences in relative and absolute lymphocyte counts and functional activation indexes between the two groups were compared. The optimal cutoff values for continuous variables were calculated from the receiver operating characteristic curve and logistic regression analysis was used to evaluate the risk factors in NHL patients with HLH.Results:A total of 30 NHL-HLH patients were evaluated, including 12 T-cell lymphoma and 18 B-cell lymphoma patients. Forty individuals were in the control group, which included 19 T-cell lymphoma and 21 B-cell lymphoma patients. The absolute counts of CD3 + T, CD4 + T, CD8 + T, and NK cells, along with the relative count of NK cells, were significantly lower in the HLH group compared with that in the control group (all P values<0.01) . The expression of CD38 and HLA-DR on CD8 + T-cell activated subgroups was significantly higher in the NHL-HLH group compared with that in the control group (CD8 +CD38 +/CD8 + T expression median: 57.4% vs 21.5%, P<0.001; CD8 +CD38 +/CD8 + T expression median: 49.7% vs 33.5%, P=0.028, respectively) . In addition, CD28 expression on CD4 + and CD8 + T cells was significantly higher in NHL-HLH patients ( P<0.01) . ROC curve and multivariate logistic regression analyses revealed that absolute NK cell count ≤72.0 cells/μl, CD4 +CD28 +/CD4 + T >94.2%, and CD8 +CD28 +/CD8 + T >38.4% were risk factors for predicting the occurrence of NHL-HLH patients. The sensitivity and specificity of the regression model were 86.7% and 86.1%, respectively, with an area under the curve of 0.94 ( P<0.001) . Conclusions:In NHL patients with HLH, there was a significant reduction in the absolute number of peripheral blood lymphocyte subpopulations, whereas T-cell function was notably activated. Specifically, absolute counts of NK cells ≤72.0 cells/μl, CD4 +CD28 +/CD4 + T >94.2%, and CD8 +CD28 +/CD8 + T >38.4% were identified as risk factors for predicting the development of NHL-HLH patients. This will assist in early clinical diagnosis and treatment.
9.Analysis on Changes of Aquaporin and Intestinal Flora in a Rat Model with Spleen-Yin Deficiency Syndrome
Hongxia HUANG ; Xuefeng LU ; Quan ZHOU ; Hong FANG ; Xiaxia DENG ; Youzhi SUN ; Yi ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(23):131-139
ObjectiveTo investigate the effects of spleen-Yin deficiency on gastrointestinal absorption, water metabolism and intestinal flora in rats with spleen-Yin deficiency syndrome. MethodA rat model of spleen-Yin deficiency syndrome was established by using the composite factors, including irregular meat and vegetable diet, weight-bearing fatigue swimming and gavage with warm-heat injury-Yin drugs. The changes of body weight, food intake, water intake and duration of swimming in the blank and model groups were observed. Hematoxylin-eosin(HE) staining was used to observe the histopathological damage of the stomach and colon. Urinary excretion rate of D-xylose was determined by phloroglucinol method. The content of gastrin(GAS) in serum was determined by enzyme-linked immunosorbent assay(ELISA). The relative expression levels of vasoactive intestinal peptide(VIP), aquaporin 3(AQP3) and AQP4 in gastric tissues were detected by Western blot. The relative mRNA expression levels of VIP, AQP3 and AQP4 in gastric tissues were detected by Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR), and the changes of intestinal flora were analyzed by 16S rDNA sequencing. ResultCompared with the blank group, the results of general physical signs showed that the body weight and food intake of rats in the model group were significantly decreased, the water intake was significantly increased(P<0.05, P<0.01), and the duration of swimming was significantly decreased(P<0.01). Pathological examination results showed that in the mucosa of gastric tissues of rats in the model group appeared to be misaligned, the mucosa of colonic tissues could be seen to be obviously thinned or mutilated, and the epithelial cells appeared to be necrotic or even exfoliated. Compared with the blank group, the urinary D-xylose excretion rate of rats in the model group was significantly decreased(P<0.01), and the serum GAS content was significantly decreased(P<0.05). Compared with the blank group, Western blot results showed that the relative expression level of VIP protein in gastric tissues of rats in the model group was significantly decreased, while the relative expression levels of AQP4 and AQP3 proteins were significantly increased(P<0.01). Compared with the blank group, Real-time PCR results showed that the relative expression level of VIP mRNA in gastric tissues of rats in the model group was significantly decreased(P<0.01), and the relative mRNA expression levels of AQP3 and AQP4 were significantly increased(P<0.05, P<0.01). Compared with the blank group, the results of intestinal flora analysis showed that the number of operational taxonomic units(OTUs) and α-diversity increased and β-diversity decreased significantly in the model group, the abundance of Porphyromonadaceae was increased significantly, and the abundance of Oscillibacter_ruminantium was decreased significantly(P<0.05). Spearman correlation analysis showed that Porphyromonadaceae was significantly positively correlated with AQP4 protein level, while Oscillibacter_ruminantium was significantly positively correlated with VIP protein level, and negatively correlated with AQP3 and AQP4 protein levels(P<0.05). Linear discriminant analysis effect size(LEfSe) analysis results showed that there were significant differences in a variety of intestinal bacteria between groups, and the intestinal bacteria of the model group were significantly enriched in the phylum/order/family/genus of Elusimicrobia, Betaproteobacteria, Burkholderiales, Sutterellaceae and Parasutterella(P<0.05). ConclusionSpleen-Yin deficiency syndrome can weaken the digestion and absorption capacity of gastrointestinal tract, and cause the disturbance of water metabolism and intestinal flora. AQP4, AQP3 and VIP protein levels of gastric mucosa are closely related to Porphyromonadaceae and Oscillibacter_ruminantium. And AQP4, AQP3 and VIP may be involved in the regulation of intestinal flora in order to affect the physiological function of spleen governing transportation and transformation.
10.Multicenter study on the etiology characteristics of neonatal purulent meningitis
Yanli LIU ; Jiaojiao CAI ; Xiaoyi ZHANG ; Minli ZHU ; Zhenlang LIN ; Yicong PAN ; Junhu ZHENG ; Yiwei ZHAO ; Xiang WANG ; Hongping LU ; Meifang LIN ; Ji WANG ; Haihong GU ; Lizhen WANG ; Keping CHENG ; Yuxuan DAI ; Yuan GAO ; Junsheng LI ; Hongxia FANG ; Na SUN ; Lihua LI ; Xiaoquan LI ; Ying LIU ; Yingyu LI ; Wa GAO ; Minxia LI
Chinese Journal of Infectious Diseases 2023;41(6):393-400
Objective:To study the distribution and antibiotics resistance of the main pathogens of neonatal purulent meningitis in different regions of China.Methods:A retrospective descriptive clinical epidemiological study was conducted in children with neonatal purulent meningitis which admitted to 18 tertiary hospitals in different regions of China between January 2015 to December 2019. The test results of blood and cerebrospinal fluid, and drug sensitivity test results of the main pathogens were collected. The distributions of pathogenic bacteria in children with neonatal purulent meningitis in preterm and term infants, early and late onset infants, in Zhejiang Province and other regions outside Zhejiang Province, and in Wenzhou region and other regions of Zhejiang Province were analyzed. The chi-square test was used for statistical analysis.Results:A total of 210 neonatal purulent meningitis cases were collected. The common pathogens were Escherichia coli ( E. coli)(41.4%(87/210)) and Streptococcus agalactiae ( S. agalactiae)(27.1%(57/210)). The proportion of Gram-negative bacteria in preterm infants (77.6%(45/58)) with neonatal purulent meningitis was higher than that in term infants (47.4%(72/152)), and the difference was statistically significant ( χ2=15.54, P=0.001). There were no significant differences in the constituent ratios of E. coli (36.5%(31/85) vs 44.8%(56/125)) and S. agalactiae (24.7%(21/85) vs 28.8%(36/125)) between early onset and late onset cases (both P>0.05). The most common pathogen was E. coli in different regions, with 46.7%(64/137) in Zhejiang Province and 31.5%(23/73) in other regions outside Zhejiang Province. In Zhejiang Province, S. agalactiae was detected in 49 out of 137 cases (35.8%), which was significantly higher than other regions outside Zhejiang Province (11.0%(8/73)). The proportions of Klebsiella pneumoniae, and coagulase-negative Staphylococcus in other regions outside Zhejiang Province (17.8%(13/73) and 16.4%(12/73)) were both higher than those in Zhejiang Province (2.9%(4/137) and 5.1%(7/137)). The differences were all statistically significant ( χ2=14.82, 12.26 and 7.43, respectively, all P<0.05). The proportion of Gram-positive bacteria in Wenzhou City (60.8%(31/51)) was higher than that in other regions in Zhejiang Province (38.4%(33/86)), and the difference was statistically significant ( χ2=6.46, P=0.011). E. coli was sensitive to meropenem (0/45), and 74.4%(32/43) of them were resistant to ampicillin. E. coli had different degrees of resistance to other common cephalosporins, among which, cefotaxime had the highest resistance rate of 41.8%(23/55), followed by ceftriaxone (32.4%(23/71)). S. agalactiae was sensitive to penicillin, vancomycin and linezolid. Conclusions:The composition ratios of pathogenic bacteria of neonatal purulent meningitis are different in different regions of China. The most common pathogen is E. coli, which is sensitive to meropenem, while it has different degrees of resistance to other common cephalosporins, especially to cefotaxime.


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