Objective::This study aims to investigate the impact of tricuspid regurgitation (TR) severity on the accuracy of echocardiographic estimation of systolic pulmonary arterial pressure (sPAP) in patients with pulmonary arterial hypertension (PAH).Methods::Patients who were diagnosed with PAH and had a right heart catheterization (RHC) and echocardiography examination were selected retrospectively from May 2018 to December 2021. sPAP measured by RHC is used as the gold standard. A difference in sPAP of less than 10 mmHg between echocardiographic estimation by peak TR velocity and RHC measurement was defined as accurate, with a difference ≥10 mmHg considered inaccurate. The factors affecting the accuracy of echocardiographic sPAP estimation were analyzed by univariate and multivariate analysis.Results::A total of 138 patients aged (45.57 ± 15.97) years with PAH were enrolled. sPAP measured by echocardiography and RHC were (80.83 ± 23.46) and (81.62 ± 30.05) mmHg, respectively. The values of the 2 methods were highly correlated ( r = 0.809, P < 0.01) and Bland-Altman plots showed good consistency. The accuracy rate of sPAP estimation by echocardiography was 42.03% (58/138). In the 57.97% (80/138) of patients where echocardiography was inaccurate, sPAP was overestimated in 28.26% (39/138) and underestimated in 29.71% (41/138). Univariate analysis showed that there was a statistically significant difference between the accurate and inaccurate groups in World Health Organization-Function Class, N-terminal pro-B-type natriuretic peptide, severity of TR, tricuspid annular plane systolic excursion (TAPSE), sPAP-RHC, mean pulmonary artery pressure, pulmonary vascular resistance ( P < 0.05). Multivariate logistic regression analyses identified the TR severity (odds ratio = 2.292, 95% confidence interval: 1.126–4.667, P = 0.022) and TAPSE (odds ratio = 0.733, 95% confidence interval: 0.621–0.865, P < 0.001) as independent predictors for the accuracy of echocardiographic sPAP estimation. Conclusion::Higher TR severity and lower TAPSE values reduce the accuracy of sPAP estimated by echocardiography. Therefore, TR severity and right heart function should be considered when echocardiography is used to estimate sPAP by the TR velocity.

Objective::This study aims to investigate the impact of tricuspid regurgitation (TR) severity on the accuracy of echocardiographic estimation of systolic pulmonary arterial pressure (sPAP) in patients with pulmonary arterial hypertension (PAH).Methods::Patients who were diagnosed with PAH and had a right heart catheterization (RHC) and echocardiography examination were selected retrospectively from May 2018 to December 2021. sPAP measured by RHC is used as the gold standard. A difference in sPAP of less than 10 mmHg between echocardiographic estimation by peak TR velocity and RHC measurement was defined as accurate, with a difference ≥10 mmHg considered inaccurate. The factors affecting the accuracy of echocardiographic sPAP estimation were analyzed by univariate and multivariate analysis.Results::A total of 138 patients aged (45.57 ± 15.97) years with PAH were enrolled. sPAP measured by echocardiography and RHC were (80.83 ± 23.46) and (81.62 ± 30.05) mmHg, respectively. The values of the 2 methods were highly correlated ( r = 0.809, P < 0.01) and Bland-Altman plots showed good consistency. The accuracy rate of sPAP estimation by echocardiography was 42.03% (58/138). In the 57.97% (80/138) of patients where echocardiography was inaccurate, sPAP was overestimated in 28.26% (39/138) and underestimated in 29.71% (41/138). Univariate analysis showed that there was a statistically significant difference between the accurate and inaccurate groups in World Health Organization-Function Class, N-terminal pro-B-type natriuretic peptide, severity of TR, tricuspid annular plane systolic excursion (TAPSE), sPAP-RHC, mean pulmonary artery pressure, pulmonary vascular resistance ( P < 0.05). Multivariate logistic regression analyses identified the TR severity (odds ratio = 2.292, 95% confidence interval: 1.126–4.667, P = 0.022) and TAPSE (odds ratio = 0.733, 95% confidence interval: 0.621–0.865, P < 0.001) as independent predictors for the accuracy of echocardiographic sPAP estimation. Conclusion::Higher TR severity and lower TAPSE values reduce the accuracy of sPAP estimated by echocardiography. Therefore, TR severity and right heart function should be considered when echocardiography is used to estimate sPAP by the TR velocity.

ObjectiveTo clarify the therapeutic effect of Huashi Baidu prescription on pneumonia in mice caused by influenza A （H1N1） virus and explore its mechanism based on the transcriptome. MethodA mouse influenza viral pneumonia model was built by intranasal infection with influenza A virus， and mice were continuously administered the drug for five days， so as to investigate the general condition， lung index， viral load， pathological morphology of lung tissue， survival time， and prolongation rate of survival time of mice and clarify the therapeutic effect of Huashi Baidu prescription on influenza viral pneumonia. Transcriptome technology was used to detect the differentially expressed genes in the lung tissue of mice in the model group and the normal group， as well as the Huashi Baidu prescription group and the model group， and the potential core target of the Huashi Baidu prescription for the treatment of influenza viral pneumonia was screened. Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to verify the effect of Huashi Baidu prescription on the mRNA expression level of core target genes. ResultCompared with the normal group， the lung index and viral load in the lung tissue of the model group were significantly increased （P<0.05， P<0.01）. Compared with the model group， the high-dose group of Huashi Baidu prescription significantly prolonged the survival time of mice infected with influenza A virus （P<0.05） and significantly reduced the lung index value of mice （P<0.05） and the viral load of lung tissue. The high-dose， medium-dose， and low-dose groups of Huashi Baidu prescription could significantly reduce lung tissue inflammation， blood stasis， swelling， and other pathological changes in mice （P<0.05， P<0.01）. Transcriptome analysis of lung tissue showed that core genes were mainly enriched in the nuclear transcription factor-κB （NF-κB） signaling pathway， interleukin-17 （IL-17） signaling pathway， cytokine-cytokine receptor interaction， and other pathways after the intervention of Huashi Baidu prescription. TRAF6， NFKBIA， CCL2， CCL7， and CXCL2 were the top five node genes with combined score values. Real-time PCR validation showed that Huashi Baidu prescription significantly downregulated the mRNA expression of key genes TRAF6 and NFKBIA in the NF-κB signaling pathway， as well as chemokines CCL2， CCL7， and CXCL2 （P<0.05， P<0.01）. ConclusionHuashi Baidu prescription has a therapeutic effect on influenza viral pneumonia， possibly by inhibiting the expression of key nodes TRAF6 and NFKBIA in the NF-κB signaling pathway and that of chemokines CCL2， CCL7， and CXCL2， reducing the recruitment of inflammatory cells and viral load， and exerting anti-influenza viral pneumonia effects.

In recent years, with the continuous studies on tumor metabonomics, more and more results have shown that changes of metabolism play important roles in the occurrence and development of malignant tumor. Carcinogenic factors can destroy the metabolic balance of human body, induce metabolic reprogramming, and then mediate a variety of biological behaviors to partici-pate in the proliferation and invasion of cancer cells. Lipids provide the body with the necessary energy and essential fatty acids, and a variety of lipid molecules and metabolites are involved in cell signal transduction. Lipid metabolism is an important link in the metabolic system of the body, and the relationship between the occurrence and development of pancreatic cancer and lipid metabo-lism is not clear. The purpose of this paper is to reveal the changes of lipid metabolism in pancreatic cancer, summarize some preclinical studies and clinical trials, and deeply explain the research status of abnormal lipid metabolism associated with pancreatic cancer, so as to provide new ideas for the study of pancreatic cancer pathogenesis and accurate treatment.

OBJECTIVETo explore the impacts on physical and mental health of the patients with polycystic ovary syndrome (PCOS) treated with electroacupuncture (EA) or Diane 35.

METHODSSeventy-two patients of PCOS were randomized into an acupuncture group and a western medication group, 36 cases in each group. In the acupuncture group, acupuncture was applied to relieving liver stagnation and regulatingactivity at Ganshu (BL 18), Danzhong (CV 17), Qimen (LR 14), Zhongwan (CV 4), Tianshu (ST 25), Guanyuan (CV 4), Zigong (EX-CA 1), Sanyinjiao (SP 6), Zusanli (ST 36) and Taichong (LR 3). Afterarrival, the electric stimulation was added for 30 min. Acupuncture treatment was given 3 times a week. In the western medication group, Diane 35 was taken since the 5th day of menstruation and lasted for 21 days. The cycle of treatment was 3 months in the two groups. Before treatment and at the end of treatment, the symptom scores were evaluated and the self-report symptom inventory, symptom checklist-90 (SCL-90) was used for the mental health evaluation and the comparison was made between the two groups.

RESULTSCompared with those before treatment in the same group, the symptom scores were reduced significantly after treatment in the two groups (both<0.01). After treatment, the symptom scores in the acupuncture group were reduced significantly as compared with those in the western medicationgroup (<0.01). After treatment, the scores of somatization, interpersonal sensitivity, depression, anxiety and hostility were reduced significantly as compared with those before treatment in the acupuncture group (all<0.05). After treatment, the scores of somatization, interpersonal sensitivity, depression, anxiety, hostility and phobic factor were lower significantly than those in the western medication group (all<0.05).

CONCLUSIONSEA with relieving liver stagnation and regulatingactivity reduces the symptom scores of PCOS and SCL-90 scores, acting on regulating both physical and mental conditions. The effects achieved with acupuncture are better than those with Diane 35.

UNLABELLEDObjective To explore the effects of sperm DNA integrity rate, acrosome integrity rate and acrosome reaction rate on the outcomes of rescue intracytoplasmic sperm injection (ICSI).

METHODSThis retrospective analysis was conducted among 97 infertile couples receiving rescue ICSI due to failure of in vitro fertilization procedures in our Reproductive Medicine Center. Of these 97 women, 41 had clinical pregnancy and 56 did not, and the effects of sperm DNA integrity rate (estimated by DNA fragmentation index, DFI), acrosome integrity rate and acrosome reaction rate on rescue ICSI outcomes were analyzed.

RESULTSNo significant difference was found in paternal age, testosterone value, testicular volume, FSH, female patient' age or the number of eggs retrieved between the two groups (P>0.05), but the infertility years was significantly shorter in the pregnancy group than in the non-pregnancy group (P<0.05). The fertilization rate and cleavage rate were similar between the two groups (P>0.05), but the good embryo rate was significantly higher in the pregnancy group (P<0.05). The sperm DNA integrity or acrosome reaction rate did not differ significantly between the two groups (P>0.05), but the acrosome integrity rate was significantly higher in the pregnancy group (P<0.05). The sperm DNA integrity rate, acrosome integrity or acrosome reaction rate were not correlated with the fertilization rate, cleavage rate or good embryo rate (P>0.05). The pregnancy rate, twin and single fetus rates were 42.3%, 10.3% and 32.0% in this cohort after recue ICSI, respectively.

CONCLUSIONRescue ICSI is an effective treatment after failed in vitro fertilization procedure, and sperm acrosome integrity rate is associated with the outcome of rescue ICSI.

Acrosome ; pathology ; Acrosome Reaction ; DNA Fragmentation ; Female ; Fertilization ; Fertilization in Vitro ; Humans ; Infertility ; Male ; Pregnancy ; Pregnancy Rate ; Retrospective Studies ; Sperm Injections, Intracytoplasmic

) was updated in 2014 on the basis of the version 2011. Inof the updated version, the evidence quality grade and GRADE were adopted for the evidence evaluation and recommendation grading in methodology, and the clinical feasibility was stressed. In text, the recognition of modern medicine was updated, the sta-ging treatment of acupuncture and moxibustion was emphasized, the inclusive articles were expanded and the important indexes of efficacy evaluation were increased and highlighted. The paper aims to provide the instruction for the application ofof the version 2014.

Objective To explore the regularity of hematopoietic materials during the clonal evolution of aplastic anemia(AA), paroxysmal nocturnal hemoglobinuria (PNH) , myelodysplastic syndrome (MDS) and acute leukemia(AL). Methods Patients diagnosed as AA, PNH, MDS and AL were recruited as cases and health volunteers were recruited as controls. Serum folic acid, vitamin B12 and ferritin levels were measured by radioimmunoassay and competitive enzyme immunoassay,before and after-treatment. Results Before treatment,the level of serum folic acid in PNH group were significantly lower than that in the control group(P<0. 05). Vitamin B12 and ferritin levels of MDS patients were higher than the control group (P < 0. 05); Serum Folic acid level in AL patients was significantly lower than the control group (P < 0. 05). In contrast, vitamin B12 and ferritin levels were higher than the control group(P <0. 05). Compared to pre-treatments AA patients, vitamin B12 and ferritin levels of MDS patients were significantly higher(P <0. 01) ;Serum folic acid level in AL patients was significantly lower(P < 0.05). However,vitamin B12 and ferritin levels were higher. Compared to pre-treatments MDS patients, serum folic acid level in AL patients was significantly lower(P < 0. 05) , whereas vitamin B12 and ferritin levels were higher(P < 0. 05). The comparison of hematopoietic materials between pre-and post-treatments among the groups showed that there was no significant difference for AA patients between pre- and post-treatments in the levels of serum folic acid and vitamin Bl2 (P > 0. 05), whereas ferritin was significantly higher after treatment caused by transfusion in AA patients(P<0. 05) ;ln PNH patients,serum folic acid was significantly higher after treatment(P<0. 05) ,and there was no significant difference in the levels of vitamin B12 and ferritin between pre-and post-treatments (P >0. 05). In MDS patients, there was no significant difference in the level of ferum folic acid between pre-and post-treatments (P > 0. 05) , whereas vitamin B12 and ferritin levels were significantly lower after treatment (P < 0. 05); In AL patients,serum folic acid was significantly higher after treatment(P <0. 05) .whereas the levels of vitamin B12 and ferritin were significantly lower after treatment (P <0. 05). Conclusions There are significant difference in serum folic acid,vitamin B12 and ferritin among the patitents of AA,PNH,MDS and AL and would be helpful in discovering the interrelationship among the four diseases pertinent to the clonal evolution,prognosis,treatment and prognosis.

Purpose: To realize the detection of T-wave end with an efficient and accurate method. Methods: R-wave was lo-cated using wavelet transforming, and then the T-wave detection interval was identified accttrately by avoiding the influence of heart rate and P-wave. In addition, T-wave peaks were determined referring to the modulus maxima in the interval. Based on these, the T-wave end was located with a simple and practical geometrical method, which was applied for the evaluation of QT database. Results: The positioning capability of the above-mentioned method reached to (-0.35225±18.5869) ms which was comparable or even better than those manual annotations from QT database by cardiologists. Conclusions: The experimental results showed that our algorithm for T-wave end detection is robust to noise, baseline drift and waveform morphological varia-tions, and easy to calculate and to realize.

With the non-invasive analysis of time-frequency features and instantaneous frequency (IFs) of atrial fibrillation (AF) from surface ECG signals, some important information reflecting the dynamic behavior of atria with AF can be extracted. In this paper is proposed a hybrid time-frequency analysis method, which uses the respective advantages of Gabor expansion and quadratic Wigner distribution. Our study showed that the time-frequency representation of atrial fibrillation signals was formulated into the combinations of time-frequency atoms series. By controlling the trade-off of resolution and interference terms via Manhattan distance threshold, this method in combination with moment-based computation obtained more robust estimation of IFs. The comparative analysis of 10 pairs of non-terminating and terminating types of AF signals suggested that hybrid estimation of IFs can detect the reduction of a majority of the fibrillatory rate when AF will end. Meanwhile, this method decreases compute burden and is a more robust way relative to peak-based or spectrogram method. So, the proposed method would have prospective applications in clinical management of atrial fibrillation.
Algorithms ; Atrial Fibrillation ; diagnosis ; physiopathology ; Electrocardiography ; methods ; Humans ; Signal Processing, Computer-Assisted