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OBJ ECTIVE To predict the quality marker （Q-Marker）of Forsythia suspensa . METHODS The fingerprints of 10 batches of F. suspensa were established by high performance liquid chromatography. The common peaks were confirmed. The candidate components of Q-Marker in F. suspensa were screened. The volatile oil of F. suspensa were analyzed by gas chromatography-mass spectrometry （GC-MS），and the candidate components of Q-Marker in volatile oil were screened. The network pharmacology analysis was performed for the candidate components of Q-Marker. The network diagram of the “candidate components of F. suspensa Q-Marker-target-pathway”was constructed to predict the Q-marker of F. suspensa . RESULTS & CONCLUSIONS Twenty-one common peaks were obtained for 10 batches of F. suspensa ，and four components were identified as phillyrin，forsythoside A ，pinoresinol-4-O-β-D-glucoside and rutin. Seven candidate components were obtained by GC-MS analysis，such as β-pinene，α-pinene，terpinen-4-ol，limonene，γ-terpinene，α-phellandrene，β-myrcene. By network pharmacology analysis， 16 key targets and 17 pathways were obtained. It was preliminarily predicted that phillyrin ， forsythoside A ， pinoresinol-4-O-β-D-glucoside，rutin，terpinen-4-ol，α-phellandrene，α-pinene and β-pinene were Q-marker of F. suspensa .
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Objective:To analyze the brain function of patients with delirium in intensive care unit (ICU) using resting-state functional magnetic resonance imaging (fMRI), further analyze the structural changes in the brain using diffusion tensor imaging (DTI), and explore the correlations of brain function with structural changes in patients with delirium in ICU from a new perspective of functional imaging, provide visual evidence for the diagnosis of delirium.Methods:Patients with delirium admitted to ICU of the Affiliated Hospital of Zunyi Medical University from January 1st to December 31st in 2017 were enrolled as subjects. During the same period, the healthy volunteers who matched the gender, age and education level of the patients with delirium were enrolled as control group. The intensive care delirium screening checklist (ICDSC) scores within 24 hours after ICU admission were recorded. All the subjects were scanned by fMRI and DTI. The abnormal changes in resting-state brain function of the patients with delirium were evaluated by cerebral regional homogeneity (ReHo) data analysis. The DTI data were processed by the FSL software, and the fractional anisotropy (FA) and mean diffusivity (MD) of the brain were extracted, respectively, to evaluate the damage to brain structure. The values of ReHo, FA and MD were compared between the two groups. The ReHo value of brain region with reduced ReHo value of patients with delirium as compared with the healthy volunteers was extracted for Pearson correlation analysis with ICDSC scores.Results:A total of 22 patients with delirium were included. Seven patients who did not cooperate in the examination, used sedatives or had false images in scanning, were excluded. Finally, 15 patients were enrolled in the delirium group, and 15 healthy volunteers in the healthy control group. ① No statistically significant difference was found in gender, age or education time between the two groups. ICDSC score of the delirium group was significantly higher than that of the healthy control group (6.07±1.28 vs. 1.07±0.88, P < 0.01). ② fMRI scanning and analysis results: compared with the healthy control group, the ReHo values of the cerebellum, right hippocampus, striatum, midbrain and pons in the delirium group were significantly increased (all P < 0.05, AlphaSim correction), while the ReHo values of bilateral superior frontal gyrus, bilateral median frontal gyrus, left inferior frontal gyrus, temporal lobe and parietal lobe were significantly lowered (all P < 0.05, AlphaSim correction). Correlation analysis showed that the ReHo value of the left superior frontal gyrus was negatively correlated with ICDSC score in the patients with delirium ( r = -0.794, P < 0.05), indicating that the changes in the functional area of the medial frontal gyrus was most closely related to delirium. ③ DTI scanning and analysis results: compared with the healthy control group, the FA values of the left cerebellum, bilateral frontal lobes, left temporal lobe, corpus callosum and left hippocampus in the delirium group were decreased significantly (all P < 0.05, AlphaSim correction), while the MD values of the medial frontal gyrus, right superior temporal gyrus, anterior cingulate gyrus, bilateral insular lobes and left caudate nucleus were enhanced significantly (all P < 0.05, AlphaSim correction), suggesting that the structural and functional damage was found in multiple brain regions in patients with delirium. Conclusions:Multiple brain regions of patients with delirium present abnormal resting-state brain function. The abnormal resting-state brain function of the left superior frontal gyrus is closely related to the occurrence of delirium. Structural damage is found in multiple brain regions of patients with delirium. The structural changes in the frontal lobe, temporal lobe, corpus callosum, hippocampus and cerebellum and their abnormal functions can be used as preliminary imaging indexes for the diagnosis of delirium.
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Acute respiratory distress syndrome (ARDS) is considered to be a pulmonary manifestation of systemic inflammatory response syndrome (SIRS), often occurring as a complication of disease, and worsening the prognosis of patients. In recent years, the incidence of trauma has increased year by year. Severe trauma can lead to SIRS, which is one of the common risk factors of ARDS. The spleen is the largest peripheral immune organ of the body, containing a large number of immune cells and secreting inflammatory factors. The inflammatory factors play an important role in the formation of traumatic ARDS. In recent years, the benefits of treating ARDS by inhibiting spleen-induced inflammatory response have gradually been discovered, providing new ideas for the treatment of ARDS. Therefore, the research status of spleen-mediated inflammatory response in traumatic ARDS is of great significance for the prevention and treatment of traumatic ARDS. This article reports the spleen-mediated systemic inflammatory response, the role of inflammatory mediators in the development of ARDS, and the current state of research on ARDS treatment to explore new approaches to the prevention and treatment of traumatic ARDS.
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The etiology of hemophagocytic lymphohistiocytosis (HLH) is complicated and difficult to diagnose, unexplained HLH often with hematological malignancies. Invasive biopsy can help to find etiology, the results may be affected by the technique and the location of the puncture site. Multiangle puncture can improve the success rate, but the corresponding risk increases. A patient with HLH was admitted to Affiliated Hospital of Zunyi Medical College. The etiology was unknown. Active symptomatic support treatment was conducted, at the same time, finding the evidence of viral infection, autoimmune disease related detection, blood culture, bone marrow puncture smear and spleen biopsy were performed respectively to find the pathogen basis. Spleen hemorrhage was not being controlled after spleen biopsy in patients, and emergency splenectomy was adopted to stop bleeding for saving lives. Finally, the patients died of low protein, pulmonary edema and respiratory failure. The bone marrow puncture and spleen biopsy failed to provide the basis for tumor invasion, while the spleen pathological slices plus immunohistochemical indicate diffuse large B cell lymphoma (DLBCL) after splenectomy, which was identified as malignant tumor-associated hemophagocytic syndrome. Underscoring the high risk of bleeding after tumor-associated splenomegaly puncture and the importance of having emergency plans. Through analyzing the clinical characteristics, diagnosis and treatment of this patient, we hope to improve the clinicians' understanding of HLH and lymphoma.
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Objective To explore the sedation and analgesia effect of dexmedetomidine (DEX) in patients with multiple trauma during mechanical ventilation.Methods Eighty cases of multiple trauma patients under mechanical ventilation treated from September 2016 to March 2017 were analyzed by retrospective case-control study.There were 58 males and 22 females with an age range of 18-60 years (mean,41.87 years).The injury severity score (ISS) was (18.45 ±4.53)points.The patients were treated with sedation and analgesia,and they were divided into two groups according to the sedative drugs.DEX composite tartaric acid butorphanol were used in 40 patients as DEX group.Midazolam composite tartaric acid butorphanol were used in 40 patients as Midazolam group.The degree of sedation score (Ramsay score) were compared between groups.The time from initial drug use to effective sedation achievement,daily wake-up time,mechanical ventilation duration,emergency intensive care unit (EICU) time,dosage of tartaric acid butorphanol,heart rate,blood pressure changes,and incidence of delirium were compared.Results (1) Two groups could both reach the target of sedation.DEX group had shorter daily wake-up time,shorter mechanical ventilation time and shorter length of EICU stay compared with Midazolam group (P ＜ 0.05).(2) The time to achieve satisfied sedation after initial usage in Midazolam group was shorter than that in DEX group (P ＜ 0.05).(3) DEX group had smaller tartaric dosage of acid butorphanol,and lower incidence of delirium compared those in Midazolam group (P ＜ 0.05).(4) The comparison of systolic blood pressure,diastolic blood pressure,heart rate within either group showed significant difference before and after sedation (P ＜ 0.05),but had no significant difference between two groups (P ＞ 0.05).Conclusions For multiple trauma patients with mechanical ventilation,DEX can attain sedation and analgesia and shorten daily wake-up time,mechanical ventilation time,and length of hospital stay.DEX can reduce the dosage of analgesic (butorphanol) and the incidence of delirium.Blood pressure and heart rate are associated with small variations before and after sedation.
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With the development of molecular and cell biology,new concept of the etiology of pituitary adenomas was taking shape.The etiology of pituitary adenoma was considered to be related to gene mutation and transforming factors.This paper reviews the roles of gene mutations,transforming factors,expression of receptors on cells and growth factors in the etiology of pituitary adenomas.