ObjectiveTo explore the mechanism by which Qijia Rougan decoction ameliorates liver fibrosis through amino acid/fatty acid metabolic reprogramming and phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt） pathway， based on the miRNA-mRNA regulatory network and the interaction between metabolism and signaling pathways. MethodsSprague-Dawley （SD） rats were randomized into four groups （n=8）： control， model， and low-dose and high-dose （7.0， 28.0 g·kg^-1·d^-1， respectively） Qijia Rougan decoction. Liver fibrosis was induced by subcutaneous injection of carbon tetrachloride （CCl₄）. From week 9， drug intervention was implemented for 7 weeks. After the final administration， the pathological changes in the liver were evaluated through hematoxylin-eosin （HE） and picrosirius red （PSR） staining. An automated biochemical analyzer was used to measure the serum levels of biochemical indicators， including alanine aminotransferase （ALT）， aspartate aminotransferase （AST）， alkaline phosphatase （ALP）， total bile acid （TBA）， albumin （ALB）， and cholesterol （TC）. High-throughput miRNA sequencing was performed to identify differentially expressed miRNAs （DemiRs） during liver fibrosis. A miRNA-mRNA interaction network was constructed to identify key targets， which were then subjected to GO and KEGG enrichment analyses. The expression levels of selected DemiRs were validated by Real-time PCR. ResultsCompared with the control group， the model group showed marked hepatic lobular necrosis， increased collagen deposition， significant fibrosis， elevated serum levels of ALT， AST， ALP， and TBA （P<0.01）， and declined levels of ALB and TC （P<0.01）. Compared with the model group， Qijia Rougan decoction treatment reduced hepatic necrosis， collagen accumulation， and fibrosis， lowered the serum levels of ALT， AST， ALP， and TBA （P<0.01）， and raised the levels of ALB and TC （P<0.01）. Integrated miRNA-seq and RNA-seq analysis identified 31 DemiRs （6 upregulated and 25 downregulated） and 498 targets. The expression trends of four selected DemiRs， including rno-miRNA-376b-3p， were consistent with sequencing results （R²=0.93）. Functional annotation revealed that top 20 upregulated targets were enriched in amino acid and fatty acid metabolism， while top 20 downregulated targets were significantly associated with the PI3K/Akt signaling pathway and cancer progression. ConclusionQijia Rougan decoction alleviates liver fibrosis by reconstructing the miRNA-mRNA regulatory network， promoting metabolic reprogramming， and inhibiting the PI3K/Akt signaling pathway. These findings provide mechanism evidence supporting the multi-targeted antifibrotic effects of traditional Chinese medicine compound formulas.

ObjectiveTo explore the role and mechanism of Hei Xiaoyaosan in regulating the protein kinase B （Akt）/glycogen synthase kinase-3β （GSK-3β）/nuclear factor E₂-related factor 2 （Nrf2）/heme oxygenase-1 （HO-1） signaling pathway in cascade modulation of oxidative stress and apoptosis for preventing and treating Alzheimer's disease （AD）. MethodsNinety male SD rats of 4 months old were randomly assigned into a control group （n=10）， a sham group （with injection of 1 μL normal saline into bilateral hippocampi， n=10）， and a modeling group （with injection of 1 μL beta-amyloid 1-42 solution into bilateral hippocampi to induce AD， n=70）. One week after modeling， 50 successfully modeled rats were selected and randomly allocated into model， donepezil hydrochloride （0.45 mg·kg^-1）， and high-， medium-， and low-dose （15.30， 7.65， 3.82 g·kg^-1， respectively） Hei Xiaoyaosan groups. The rats were administrated with corresponding drugs once daily for six consecutive weeks. The Morris water maze was used to assess the learning and memory abilities of rats. Hematoxylin-eosin （HE） staining was performed to reveal hippocampal morphological changes in AD rats. Apoptosis in the hippocampal CA3 region was detected by terminal-deoxynucleotidyl transferase-mediated Nick end labeling. Immunofluorescence was used to visualize the expression of neuronal nuclear antigen （NeuN） in the CA1 region. Additionally， enzyme-linked immunosorbent assay was performed to assess the activities of glutathione peroxidase （GSH-Px）， glutathione-S-transferase （GST）， and catalase （CAT） in the hippocampus. Real-time PCR was conducted to measure the mRNA levels of Akt， GSK-3β， Nrf2， and HO-1， while Western blot was employed to determine the protein levels of phosphorylated Akt （p-Akt）/Akt， phosphorylated GSK-3β （p-GSK-3β）/GSK-3β， Nrf2， and HO-1. ResultsCompared with the control group， the model group on day 5 showed an increase in total swimming distance （P<0.01）， a reduction in the percentage of time spent in the target quadrant （P<0.01）， reduced and disarranged neurons， nuclear condensation， varying degrees of cellular damage， increased apoptosis of hippocampal neurons （P<0.01）， decreased NeuN content （P<0.01）， weakend activities of GSH-Px， GST， and CAT （P<0.01）， and down-regulated mRNA levels of Nrf2 and HO-1 （P<0.01） and protein levels of p-Akt/Akt， p-GSK-3β/GSK-3β， Nrf2， and HO-1 （P<0.01） in the hippocampus. Compared with the model group， donepezil hydrochloride and high， medium， and low doses of Hei Xiaoyaosan shortened the total swimming distance on day 5 （P<0.05， P<0.01）， increased the percentage of time spent in the target quadrant （P<0.05， P<0.01）， improved the arrangement and morphology of neurons， reduced nuclear condensation and the apoptosis rate of hippocampal neurons （P<0.01）， increased the NeuN content （P<0.01）， enhanced the activities of GSH-Px， GST， and CAT （P<0.05， P<0.01）， and up-regulated the mRNA levels of Nrf2 and HO-1 （P<0.05， P<0.01） and the protein levels of p-Akt/Akt， p-GSK-3β/GSK-3β， Nrf2， and HO-1 （P<0.05， P<0.01） in the hippocampus. ConclusionHei Xiaoyaosan can regulate the Akt/GSK-3β/Nrf2/HO-1 pathway to enhance the antioxidant stress capacity and inhibit neuron apoptosis to exert the neuroprotective effect， thereby ameliorating the cognitive dysfunction and pathological damage in AD rats.

ObjectiveTo explore the mechanism of Hei Xiaoyaosan in improving the cognitive function in Alzheimer's disease （AD） from cell apoptosis mediated by the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt）/nuclear factor kappa B （NF-κB） signaling pathway. MethodsFour-month-old SD male rats were randomly assigned into a blank group， a sham group， a model group， a donepezil hydrochloride （0.45 mg·kg^-1） group， and high-， medium-， and low-dose （15.30， 7.65， and 3.82 g·kg^-1， respectively） Hei Xiaoyaosan groups， with 10 rats in each group. The sham group received bilateral hippocampal injection of 1 μL normal saline， while the other groups received bilateral hippocampal injection of 1 μL beta-amyloid 1-42 （Aβ_1-42） solution for the modeling of AD. Rats were administrated with corresponding agents once a day for 42 consecutive days. The Morris water maze test was carried out to assess the learning and memory abilities of rats. Hematoxylin-eosin staining was employed to observe pathological changes in the hippocampus of rats. Enzyme-linked immunosorbent assay was employed to measure the levels of cysteinyl aspartate-specific proteinase-3 （Caspase-3）， B-cell lymphoma-2 （Bcl-2）， and Bcl-2-associated X protein （Bax）. Western blot was employed to determine the protein levels of PI3K， Akt， and NF-κB. A cell model of AD was established by co-culturing Aβ_1-42 and PC12 cells in vitro. Cell viability and apoptosis were detected by the cell-counting kit 8 （CCK-8） assay and flow cytometry （FC）， respectively. ResultsAnimal experiments showed that compared with the blank group， the model group had a prolonged escape latency （P<0.01）， a reduced number of crossing platforms （P<0.01）， disarrangement and a reduced number of hippocampal neurons， up-regulated expression of Bax and Caspase-3， down-regulated expression of Bcl-2 （P<0.01）， decreased p-PI3K/PI3K and p-Akt/Akt levels， and an increased p-NF-κB/NF-κB level （P<0.01）. Compared with the model group， donepezil hydrochloride and high- and medium-dose Hei Xiaoyaosan shortened the escape latency and increased the number of crossing platforms （P<0.05， P<0.01）， improved the arrangement and increased the number of hippocampal neurons， down-regulated the expression levels of Bax and Caspase-3， up-reguated the expression level of Bcl-2 （P<0.05， P<0.01）， increased the p-PI3K/PI3K and p-Akt/Akt levels （P<0.05， P<0.01）， and reduced the p-NF-κB/NF-κB level （P<0.05， P<0.01）. Cell experiments showed that compared with the blank group， the model group exhibited an increased apoptosis rate （P<0.01）. Compared with the model group， the serum containing Hei Xiaoyaosan at various doses improved the cell viability （P<0.01）， and the serum containing Hei Xiaoyaosan at the high dose decreased the cell apoptosis （P<0.01）. ConclusionHei Xiaoyaosan may improve the learning and memory abilities of AD model rats by regulating cell apoptosis， while increasing the vitality and reducing the apoptosis rate of AD model cells via the PI3K/Akt/NF-κB signaling pathway.

ObjectiveTo investigate the effects of Hei Xiaoyaosan on cognitive impairment and the histone deacetylase sirtuin-1 （SIRT1）/tumor suppressor p53/solute carrier family 7 member 11 （SLC7A11） signaling pathway in the rat model of Alzheimer's disease （AD）. MethodsA total of 90 16-week-old SPF-grade SD male rats were randomly assigned in a blank group （n=10）， a sham group （n=10， with injection of 1 μL normal saline into the bilateral hippocampi）， and an AD modeling group （n=70， with injection of 1 μL β amyloid 1-42 solution into the bilateral hippocampi）. According to the random number table method， fifty successfully modeled rats were assigned into model， donepezil hydrochloride （0.45 mg·kg^-1）， and high-， medium-， and low-dose （15.30， 7.65， and 3.82 g·kg^-1， respectively） Hei Xiaoyaosan groups， and they were administrated with corresponding agents via gavage once a day for 42 consecutive days. Morris water maze test was carried out to examine the cognitive function of rats. Nissl staining was employed to observe the morphology of hippocampal neurons in each group， and Prussian blue staining was used to detect iron deposition in the hippocampal tissue. Biochemical kits were used to measure the levels of superoxide dismutase （SOD）， malondialdehyde （MDA）， and iron ion （Fe²⁺） in the hippocampal tissue. Western blot and real-time quantitative polymerase chain reaction （Real-time PCR） were employed to determine the protein and mRNA levels， respectively， of SIRT1， p53， SLC7A11， glutathione peroxidase 4 （GPX4）， and acyl-CoA synthetase long-chain family member 4 （ACSL4） in the hippocampus. ResultsCompared with the blank group， the model group showed reductions in target quadrant movement distance （P<0.01） and target quadrant residence time （P<0.05）， disarrangement of hippocampal neurons， increased ferroptosis deposition in the hippocampus， a lowered level of SOD， risen levels of MDA and Fe²⁺ （P<0.05， P<0.01）， down-regulated protein and mRNA levels of SIRT1， SLC7A11， and GPX4 （P<0.05， P<0.01）， up-regulated protein and mRNA levels of p53 and ACSL4 （P<0.01）， and aggravated pathological process of AD. Compared with the model group， donepezil hydrochloride extended the target quadrant residence time and the target quadrant movement distance （P<0.05， P<0.01）. High- and medium- doses of Hei Xiaoyaosan extended the target quadrant residence time and the target quadrant movement distance （P<0.05， P<0.01）， improved the neuron arrangement and reduced the ferroptosis deposition in the hippocampus， elevated the SOD level， lowered the MDA and Fe²⁺ levels （P<0.05， P<0.01）， up-regulated the protein and mRNA levels of SIRT1， SLC7A11， and GPX4 （P<0.01， P<0.05）， and down-regulated the protein and mRNA levels of p53 and ACSL4 （P<0.05， P<0.01）. ConclusionHei Xiaoyaosan can regulate the SIRT1/p53/SLC7A11 signaling pathway to mitigate oxidative stress and inhibit ferroptosis， thereby ameliorating the cognitive dysfunction in AD rats.

Objective:To analyze the scientific research projects of health management disciplines in medical institutions in Beijing.Methods:This study was an observational study, and data was retrieved through computer between 2014 and 2023 from the scientific research data filling system of health management disciplines in medical institutions in Beijing region, which recorded the project name, project category, scientific research funding, institution, discipline, field, etc.. Excel 2016 was used to analyze the scientific research projects of health management disciplines in medical institutions in the Beijing region.Results:From 2014 to 2023, a total of 1 848 scientific research projects of health management disciplines in medical institutions in the Beijing region were initiated, with research funding of 1 204.775 million yuan. In terms of institutional categorization, they were mainly concentrated on central and municipal medical institutions, and in terms of research fields, there were 1 577 projects in Western medicine, with research funding of 1 133.240 million yuan, and 271 projects in Chinese medicine/combination of Chinese and Western medicine, with research funding of 71.535 million yuan. Cardiovascular diseases ranked first in the sub-discipline of Western medicine, and Chinese internal medicine ranked first in the sub-discipline of Chinese medicine.Conclusions:The scientific research projects of health management disciplines in medical institutions in Beijing are characterized by an imbalance in the distribution of institutions and the classification of funded sub-disciplines. The research innovation of health management in medical institutions needs to strengthen multidisciplinary cooperation and talent cultivation.

Objective To evaluate the safety and effectiveness of different doses of epidural oxycodone injection for traction reaction during cesarean sections to determine the optimal dose.Methods Totally 119 cases of parturients who underwent cesarean sections from October 2023 to May 2024 were selected and randomly divided into groups A,B,C and D.All four groups of lying-in women received epidural injection after the umbilical cord was cut.Groups A,B and C were given oxycodone 3 mg,5 mg and 7 mg respectively,and group D was given an equal amount of normal saline.The primary outcomes were documentation of maternal vital signs and traction reaction during the surgery.Secondary outcomes included patient-controlled intravenous analgesia(PCIA)times within 48 hours and documentation of any postoperative adverse events within 24 hours.Results The comparison of in-tra?operative vital signs among the four groups of patients revealed no statistically significant differences.In groups A,B and C the incidence of traction reactions was significantly lower at 20％,17.2％and 3.3％,respectively,compared to group D at 53.3％,showing statistically significant differences(P<0.05).Additionally,the inci?dence of traction reaction in group C was significantly lower than in group A(P<0.05).Groups A,B and C pro?duced significantly better results than group D in terms of the duration of anesthesia.PCIA presses were substan?tially less in groups A and C than in group D(P<0.05),and group C had a significantly higher total incidence of adverse events than group A and group D(P<0.05).Conclusions Epidural injection of 3 mg,5 mg and 7 mg oxycodone has been proved to significantly reduce traction reaction during cesarean sections while minimally im?pacting intraoperative vital signs.This intervention has the potential to extend the duration of anesthesia,decrease the frequency of PCIA presses.Among these,7 mg is the most effective but has the highest incidence of adverse effects,requiring carefully post?operative monitoring.

Objective To investigate the mechanism by which 4-week high-intensity interval training(HIIT)regulates the mitochondrial unfolded protein response(UPRmt)in skeletal muscle and improves mitochondrial function in a rat model of chronic unpredictable mild stress(CUMS).Methods Male SPF-grade SD rats(6～8 weeks old)were divided randomly into control(C),model(M),HIIT+control(HC),and HIIT+model(HM)groups.Rats in the M and HM groups were subjected to CUMS for 8 weeks to establish a depression model,while rats in the HC and HM groups received HIIT for 5 d a week for 4 weeks.The exercise regimen consisted of 3 min high-speed(85％～90％Smax)combined with 1 min low-speed(50％～55％Smax)uninterrupted repetitive training(Smax is maximum training speed).Behavioral changes were evaluated at weeks 4 and 8.Tissue samples were taken 24 h after the last behavioral test and skeletal muscle mitochondria were examined by transmission electron microscopy.The ATP and reactive oxygen species(ROS)contents were measured by enzyme-linked immunosorbent assays and protein expression levels of activating transcription factor(ATF)4,ATF5,C/EBP homologous protein(CHOP),and heat shock protein 60(HSP60)were detected by Western blot.Results(1)The body mass,number of crossing grids,number of upright positions,sugar-water preference rate,and ATP content were significantly decreased in group M compared with group C(P＜0.01),while the number of damaged mitochondria,ROS content,ATF4,ATF5,CHOP,and HSP60 protein expression were significantly increased(P＜0.01).(2)After 4-weeks of HIIT intervention,the ATP content and ATF4 and ATF5 protein expression levels were significantly increased in the HC group compared with C group(P＜0.05,P＜0.01).The number of crossing grids,number of upright positions,sugar-water preference rate,ATP content,and ATF4 protein expression were significantly increased in the HM group compared with M group(P＜0.01),while the number of damaged mitochondria,ROS content,and ATF5,CHOP,and HSP60 protein expression levels were significantly decreased(P＜0.01).(3)After 4 weeks of HIIT intervention,the number of crossing grids in CUMS rats was significantly positively correlated with ATF4 protein expression,and ROS content was correlated with CHOP protein expression,number of damaged mitochondria,and ATF5 protein expression(|r|＞0.75,P＜0.01;|r|＞0.75,P＜0.05).Upright frequency was significantly negatively correlated with ATF5 and HSP60 protein expression,the number of crossing grids,the sugar-water preference rate,and the expression of CHOP and HSP60 proteins(|r|＜0.75,P＜0.05).Conclusions 4-week HIIT intervention can improve mitochondrial dysfunction and alleviate depressive-like behavior in CUMS rats by regulating skeletal muscle UPRmt.

Objective To investigate the mechanism by which 4-week high-intensity interval training(HIIT)regulates the mitochondrial unfolded protein response(UPRmt)in skeletal muscle and improves mitochondrial function in a rat model of chronic unpredictable mild stress(CUMS).Methods Male SPF-grade SD rats(6～8 weeks old)were divided randomly into control(C),model(M),HIIT+control(HC),and HIIT+model(HM)groups.Rats in the M and HM groups were subjected to CUMS for 8 weeks to establish a depression model,while rats in the HC and HM groups received HIIT for 5 d a week for 4 weeks.The exercise regimen consisted of 3 min high-speed(85％～90％Smax)combined with 1 min low-speed(50％～55％Smax)uninterrupted repetitive training(Smax is maximum training speed).Behavioral changes were evaluated at weeks 4 and 8.Tissue samples were taken 24 h after the last behavioral test and skeletal muscle mitochondria were examined by transmission electron microscopy.The ATP and reactive oxygen species(ROS)contents were measured by enzyme-linked immunosorbent assays and protein expression levels of activating transcription factor(ATF)4,ATF5,C/EBP homologous protein(CHOP),and heat shock protein 60(HSP60)were detected by Western blot.Results(1)The body mass,number of crossing grids,number of upright positions,sugar-water preference rate,and ATP content were significantly decreased in group M compared with group C(P＜0.01),while the number of damaged mitochondria,ROS content,ATF4,ATF5,CHOP,and HSP60 protein expression were significantly increased(P＜0.01).(2)After 4-weeks of HIIT intervention,the ATP content and ATF4 and ATF5 protein expression levels were significantly increased in the HC group compared with C group(P＜0.05,P＜0.01).The number of crossing grids,number of upright positions,sugar-water preference rate,ATP content,and ATF4 protein expression were significantly increased in the HM group compared with M group(P＜0.01),while the number of damaged mitochondria,ROS content,and ATF5,CHOP,and HSP60 protein expression levels were significantly decreased(P＜0.01).(3)After 4 weeks of HIIT intervention,the number of crossing grids in CUMS rats was significantly positively correlated with ATF4 protein expression,and ROS content was correlated with CHOP protein expression,number of damaged mitochondria,and ATF5 protein expression(|r|＞0.75,P＜0.01;|r|＞0.75,P＜0.05).Upright frequency was significantly negatively correlated with ATF5 and HSP60 protein expression,the number of crossing grids,the sugar-water preference rate,and the expression of CHOP and HSP60 proteins(|r|＜0.75,P＜0.05).Conclusions 4-week HIIT intervention can improve mitochondrial dysfunction and alleviate depressive-like behavior in CUMS rats by regulating skeletal muscle UPRmt.

OBJECTIVE To study the levels of serum chitinase-like protein-40(YKL-40),protease-activated recep-tor 1(PAR1)messenger ribonucleic acid(mRNA)and programmed cell death molecule 5(PDCD5)in patients with influenza A virus infection-related pneumonia,and to investigate their relationship with prognosis.METHODS A total of 951 patients with simple influenza A virus infection diagnosed and treated in Linfen People's Hospital from Jan.2022 to Jan.2024 were selected as the influenza A group,166 patients with influenza A virus infection-related pneumonia were selected as the influenza A pneumonia group,963 healthy people who underwent physical examination in the hospital during the same period were selected as the healthy group,and the levels of serum YKL-40,PAR1 mRNA and PDCD5 were compared among the three groups.According to the prognosis of pa-tients with influenza A virus infection-related pneumonia,the patients in the influenza A pneumonia group were di-vided into a good prognosis group(139 cases)and a poor prognosis group(27 cases),the levels of serum YKL-40,PAR1 mRNA and PDCD5 were compared between the two groups,and the predictive value of the combina-tion of the three on the prognosis of patients with influenza A virus infection-related pneumonia was analyzed.RESULTS The levels of serum YKL-40,PAR1 mRNA and PDCD5 in the influenza A pneumonia group were(39.41±7.85)ng/ml,(11.31±3.52)and(3.04±0.89)μg/L,respectively,which were higher than those in the influenza A group[(28.19±5.88)ng/ml,(5.87±1.29),(1.96±0.55)μg/L]and the healthy group,and those in the influenza A group was higher than in the healthy group(P＜0.05).The levels of serum YKL-40,PAR1 mRNA and PDCD5 in the poor prognosis group were(45.73±9.63)ng/ml,(13.20±4.11)μg/L and(3.96±1.32)μg/L,respectively,which were higher than those in the good prognosis group(P＜0.05).The ar-ea under the curve(AUC)of serum YKL-40,PAR1 mRNA,and PDCD5 combined to predict the prognosis of pa-tients with influenza A virus infection-associated pneumonia was 0.840,which was higher than that of the three tests alone(P＜0.05).CONCLUSION The occurrence of influenza A virus infection and its related pneumonia cause elevated levels of serum YKL-40,PAR1 mRNA and PDCD5,and the combination of the three can effective-ly improve the prognostic value of patients with influenza A virus infection-related pneumonia.

OBJECTIVE To study the levels of serum chitinase-like protein-40(YKL-40),protease-activated recep-tor 1(PAR1)messenger ribonucleic acid(mRNA)and programmed cell death molecule 5(PDCD5)in patients with influenza A virus infection-related pneumonia,and to investigate their relationship with prognosis.METHODS A total of 951 patients with simple influenza A virus infection diagnosed and treated in Linfen People's Hospital from Jan.2022 to Jan.2024 were selected as the influenza A group,166 patients with influenza A virus infection-related pneumonia were selected as the influenza A pneumonia group,963 healthy people who underwent physical examination in the hospital during the same period were selected as the healthy group,and the levels of serum YKL-40,PAR1 mRNA and PDCD5 were compared among the three groups.According to the prognosis of pa-tients with influenza A virus infection-related pneumonia,the patients in the influenza A pneumonia group were di-vided into a good prognosis group(139 cases)and a poor prognosis group(27 cases),the levels of serum YKL-40,PAR1 mRNA and PDCD5 were compared between the two groups,and the predictive value of the combina-tion of the three on the prognosis of patients with influenza A virus infection-related pneumonia was analyzed.RESULTS The levels of serum YKL-40,PAR1 mRNA and PDCD5 in the influenza A pneumonia group were(39.41±7.85)ng/ml,(11.31±3.52)and(3.04±0.89)μg/L,respectively,which were higher than those in the influenza A group[(28.19±5.88)ng/ml,(5.87±1.29),(1.96±0.55)μg/L]and the healthy group,and those in the influenza A group was higher than in the healthy group(P＜0.05).The levels of serum YKL-40,PAR1 mRNA and PDCD5 in the poor prognosis group were(45.73±9.63)ng/ml,(13.20±4.11)μg/L and(3.96±1.32)μg/L,respectively,which were higher than those in the good prognosis group(P＜0.05).The ar-ea under the curve(AUC)of serum YKL-40,PAR1 mRNA,and PDCD5 combined to predict the prognosis of pa-tients with influenza A virus infection-associated pneumonia was 0.840,which was higher than that of the three tests alone(P＜0.05).CONCLUSION The occurrence of influenza A virus infection and its related pneumonia cause elevated levels of serum YKL-40,PAR1 mRNA and PDCD5,and the combination of the three can effective-ly improve the prognostic value of patients with influenza A virus infection-related pneumonia.