Objective To investigate the characteristics of respiratory impedance in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods The impulse oscillometry(IOS) and polysomnography (PSG) indices were measured in 52 patients with OSAHS, 13 patients with chronic obstructive pulmonary disease (COPD) and 17 healthy persons. Results The levels of R20, total respiratory impedence and central airway resistance in the patients with OSAHS were significantly higher than those in healthy persons (P

Objective: To isolate the cross-reactive antibodies against hemagglutinin of influenza virus and identify its biological function. Methods: The antibodies gene reservoir of cross-reactive and H5N1 pseudotype particles neutralizing B cell circulating in peripheral blood of a human H5N1 case was recovered by in vitro B cell culture, screening, RT-PCR and expression vector cloning techniques. The Ab gene pairing was screened by transient transfection of human kidney 293T cells and detected using ELISA and neutralization test. The heterosubtypic antibodies were prepared and characterized. Results: We discovered the VH1-2-based heterosubtypic antibodies from two B cell lineages could neutralize GX-H5N1 pseudotype particles and have broader binding with Group 1 (including H1, H5, H6 and H9) and H7 subtype. Conclusions Cross-reactive antibodies can be induced by H5N1 infection.

Objective:The aim of this study was to compare the efficacy and safety of iguratimod (IGU) or leflnomide (LEF) in combination with methotrexate (MTX) in patients with active rheumatoid arthritis (RA).Methods:This was a multicenter, randomized, double-blinded, double dummy and controlled clinical trial. Patients with moderate or high active RA were randomized in a 1∶1 ratio to receive IGU+MTX (Group A) or LEF+MTX (Group B) treatment. The efficacy and safety were assessed at week 12, 24 and 52, respectively. The primary endpoint was the American Colleague of Rheumatology 20 (ACR20) response rates at the 52th week. Pearson chi square test and two-way Analysis of Variance (ANOVA) were used to compare the improve- ment of ACR20 and DAS28 at 52 weeks. Pearson chi square test or Fisher exact probability test were used to compare the ACR 20 and ACR70 rate between the two groups after treatment. The measurement data of the two groups were compared by independent sample t-test or nonparametric test. Results:A total of 240 RA patients were enrolled in the present study. As a result, 84.1% and 81.0% of patients achieved ACR20 criteria at the 52th week in Group A and Group B, respectively ( χ2=0.35, P=0.56). And the ACR50/70 response rates, disease activity score 28 (DAS28), simplified disease activity index (SDAI) and the absolute decrease of DAS28 from baseline were not statistically different between the two groups at week 12, 24 and 52. The rates of adverse events were lower in Group A than those in Group B (60.0% vs 79.0%, P<0.01). The elevations of glutamic pyruvic transaminase/glutamic oxalacetic transaminase levels, concomitant use of hepatinica and white blood cell decrease were more common in Group B ( P<0.05). Conclusion:IGU in combination with MTX is an efficacious and safe treatment regimen, which is comparable in efficacy in control active RA but superior in safety to LEF combined with MTX.

Purpose To evaluate the function of swallowing by examining the relative motion of the hyoid bone and larynx(HL)via ultrasonography,and to explore the value of HL motion ratio in the evaluation of stroke with pharyngeal dysphagia.Materials and Methods A total of 43 stroke patients with dysphagia(dysphagia group)and 43 healthy adults(healthy control group)from June 2021 to April 2022 in the Third Affiliated Hospital of Henan University of Traditional Chinese Medicine and the First Affiliated Hospital of Henan University of Traditional Chinese Medicine were enrolled.The displacement and motion time of HL were measured by ultrasonography when the participants swallowed 5 ml water.The median flow tracking algorithm was implemented in Python language to measure the displacement of the hyoid bone,the movement time of the hyoid bone,the displacement of the larynx and the movement time of larynx,and then HL movement ratio was calculated,respectively.The differences in ultrasonography measurements between the two groups were compared,and the influencing factors of stroke with dysphagia were screened out via Logistic regression analysis.Then the receiver operating characteristic curve was drawn,the area under curve and the cut-off value,sensitivity and specificity were calculated subsequently.Results The larynx motion time(static phase),the larynx displacement(elevation phase)and the HL motion ratio were significantly related to swallowing in healthy participants,with significant differences between the two groups(t=4.97,6.38,6.17,P<0.05).The results of Logistic regression analysis showed that the HL motion ratio was the influencing factor of stroke with dysphagia(OR>1,P<0.05).The optimal cut-off value of the HL motion ratio for the diagnosis of dysphagia was 0.58,leading to a sensitivity of 86.0%,a specificity of 93.0%and the area under curve of 0.967,respectively.Conclusion Ultrasonography can quantitatively evaluate the motion of the HL during swallowing,and the HL motion ratio can be considered as a parameter for the evaluation of stroke with dysphagia,providing new insights for clinical diagnosis of dysphagia.

Myocardial fibrosis （MF） is a common pathological manifestation of various heart diseases. Due to the non-renewable nature of myocardial cells， the occurrence of MF represents irreversible damage to the myocardium. Previous studies have suggested that fibroblast-mediated collagen deposition is the main mechanism of MF. Recent studies have found that there is an immune regulation mechanism in the heart itself， and macrophage activation/polarization plays an important role in MF. With the deepening of traditional Chinese medicine research， scholars have found that traditional Chinese medicine can interfere with MF by regulating the renin-angiotensin-aldosterone system （RAAS） system and the inflammatory process， repairing the extracellular matrix， managing oxidative stress， and maintaining the balance of autophagy. This process is closely related to the activation and M1/M2 polarization of macrophages. Throughout the MF process， macrophage activation is beneficial， but excessive activation will be harmful. In the early stage of MF， appropriate M1 macrophage polarization is conducive to activating immunity and removing harmful substances. In the middle and late stages of MF， appropriate M2 macrophage polarization is conducive to remodeling the damaged myocardium. If macrophage activation is excessive/insufficient， or the balance of M1/M2 macrophage polarization is broken， the effect changes from improvement to destruction. Traditional Chinese medicines that regulate the activation/polarization of macrophages have the effects of replenishing Qi and nourishing Yin， as well as regulating Qi and activating blood， but there are also some heat-clearing， dampness-drying， and detoxification products. Therefore， the occurrence of MF may be caused by Qi and Yin deficiency， damp heat accumulation， and Qi stagnation and blood stasis. By summarizing the biological processes involved in macrophage activation/polarization in MF， this paper expounded on the research progress of traditional Chinese medicine in regulating macrophage activation and M1/M2 polarization from different angles to improve MF， so as to provide a reference for the treatment of MF with traditional Chinese medicine.