The role of FMO3 in metabolic diseases

Flavin containing monooxygenase 3(FMO3)is a member of the flavin monooxygenase family,which can oxidize the precursor Trimethylamine(TMA)provided from food to produce Trimethylamine N-oxide(TMAO).The autosomal recessive inherited disease caused by partial functional loss of Fmo3 gene,which leads to excessive excretion of TMA in body fluids and emits fishy odor,is called Fish Odor Syndrome or Trimethylaminuria.This disease has been documented for 3,000 years ago and was first reported in the case report in 1970.FMO3 mainly exists in the liver and can participate in the TMA-TMAO metabolic balance in intestinal microorganisms,liver,and kidneys,closely related to insulin resistance,diabetes,cholesterol metabolism,and cardiovascular disease.Due to its wide range of catalytic substrates and low susceptibility to metabolite accumulation,its role in drug metabolism,new drug development,and discovery of new drug targets are increasingly valued.This review will summarize the research progress on the metabolic process and localization of FMO3,congenital genetic defects,metabolic diseases,and its related possible mechanisms.

Favorable prognosis of female patients with nasopharyngeal carcinoma

The female sex is traditionally considered a favorable prognostic factor for nasopharyngeal carcinoma (NPC). However, no particular study has reported this phenomenon. To explore the prognostic impact of gender on patients with NPC after definitive radiotherapy, we reviewed the clinical data of 2,063 consecutive patients treated between 1st January 2000 and 31st December 2003 in the Sun Yat-sen University Cancer Center. The median follow-up for the whole series was 81 months. The female and male patients with early stage disease comprised 49.4% and 28.1% of the patient population, respectively. Both the 5-year overall survival (OS) and disease-specific survival (DSS) rates of female patients were significantly higher than those of male patients (OS: 79% vs. 69%, P < 0.001; DSS: 81% vs. 70%, P < 0.001). For patients with locoregionally advanced NPC, the 5-year OS and DSS rates of female vs. male patients were 74% vs. 63% (P < 0.001) and 76% vs. 64%, respectively (P < 0.001). A multivariate analysis showed that gender, age, and TNM stage were independent prognostic factors for the 5-year OS and DSS of NPC patients. The favorable prognosis of female patients is not only attributed to the early diagnosis and treatment but might also be attributed to some intrinsic factors of female patients.

Influence of laser scanning speed on Cu-Zr-Al composite coatings on Mg alloys

To improve the surface properties of magnesium alloys, a study was conducted on Cu-Zr-A1 composite coatings on AZ91HP magnesium alloy by laser cladding. The influence of laser scanning speed on the microstructures and properties of the coatings was discussed. The coatings consist of amorphous phase, CusZr3, and Cul0ZrT. With the increase of laser scanning speed, the amorphous phase content of the coatings increases and reaches 60.56wt% with the laser scanning speed of 2.0 m/min. Because of the influence of laser scanning speed on the amorphous and crystal phases, the coatings show the maximum elastic modulus, hardness, and wear resistance at the laser scanning speed of 1.0 m/min. At the laser scanning speed of 2.0 m/min, the coatings have the best corrosion resistance.

Transvenous versus open chest lead placement for resynchronization therapy in patients with heart failure： comparison of ventricular electromechanical synchronicity

Transvenous 铅放置是标准途径因为留给室(LV ) 在心脏的再同步治疗(CRT ) 踱步，当开的胸存取 epicardial 铅放置当前是经常第二使用的大多数时选择。我们试图与在 techniques.MethodsWe 上踱步的这二不同 LV 在 CRT 以后在病人把室的机电的 synchronicity 与心失败作比较的学习第二与倔强的心失败注册了 33 个连续病人到扩大心肌症为在这研究的 CRT 是合格的。当 14 收到了开的胸(OP 组) 时，十九个病人收到了 transvenous (电视组) LV 铅踱步。Intra室、内部室的机电的 synchronicity 被织物 Doppler 估计成像( TDI )在前和在 CRT procedure.ResultsBefore CRT 过程以后的一年，吝啬的QRS持续时间，最大的时差到在 12 个左室片断( LV Ts-12 )之中的收缩山峰速度，到 12 个左室片断( LV Ts-SD )的收缩山峰速度的时差的标准差，和在 OP 和电视组的内部室的机械延期( IVMD )是 166 ????

Association between clustering of cardiovascular risk factors and resting heart rate in Chinese population:a cross-sectional study

BACKGROUND Epidemiologic studies have explored the association between a single cardiovascular risk factor(CVRF)and resting heart rate(RHR),but the research on the relation of multiple risk factors with RHR remains scarce.This study aimed to explore the associations between CVRFs clustering and the risk of elevated RHR.METHODS In this cross-sectional study,adults aged 35-75 years from 31 provinces were recruited by the China PEACE Million Persons Projects from September 2015 to August 2020.We focused on seven risk factors:hypertension,diabetes mellitus,dyslipidemia,obesity,smoking,alcohol use,and low physical activity.Multivariate logistic regression was used to calculate odds ratios(OR)for elevated RHR(>80 beats/min).RESULTS Among 1,045,405 participants,the mean age was 55.67±9.86 years,and 60.4%of participants were women.The OR(95%CI)for elevated RHR for the groups with 1,2,3,4 and≥5 risk factor were 1.11(1.08-1.13),1.36(1.33-1.39),1.68(1.64-1.72),2.01(1.96-2.07)and 2.58(2.50-2.67),respectively(Ptrend<0.001).The association between the CVRFs clustering number and elevated RHR was much more pronounced in young males than in other age-sex subgroups.Clusters comprising more metabolic risk factors were associated with a higher risk of elevated RHR than those comprising more behavioral risk factors.CONCLUSIONS There was a significant positive association between the CVRFs clustering number and the risk of elevated RHR,particularly in young males.Compared clusters comprising more behavioral risk factors,clusters comprising more metabolic risk factors were associated with a higher risk of elevated RHR.RHR may serve as an indicator of the cumulative effect of multiple risk factors.

Unplanned J-valve implantation during open heart surgery for severe valvular annulus and ventricle calcification

Aortic annulus calcification(AC)and mitral AC are common in patients with cardiac valvular disease.[1]Procedures to resect or debride aortic AC and mitral AC may lead to cerebral emboli,heart failure,arrhythmia,coronary artery lesions,and even ventricular rupture.[2]Therefore,it is often a challenge for surgeons to choose an appropriate surgical strategy for patients with severe valvular AC.[3,4]A sutureless valve is a good choice,doing away with the need to take time to remove the AC,but many countries do not have this valve.Transcatheter aortic valve implantation(TAVI)and transcatheter mitral valve replacement(TMVR)have developed rapidly during recent years.

Effect of Chinese medicine prescriptions of warming-Yang or cooling-heat combined with Gefitinib on H1650 cell line

目的：探索两个相反治则的温阳、清热中药联合靶向药物吉非替尼对H1650细胞的生长、凋亡及表皮生长因子受体（EGFR）通路的影响.方法：培养并收集对数生长期的H1650细胞,利用MTT法计算吉非替尼单药的IC50,再联合不同浓度的参附、清开灵注射液,作用48、72小时,MTT法检测联合药物对细胞株的増殖抑制率,计算Q值比较联合效应,选择联合指数差异较大的药物浓度、作用时间点,通过Annexin V/PI法检测药物对细胞凋亡的影响.Westernblot法检测EGFR通路相关蛋白的表达.结果：与单药相比,QKL联合吉非替尼显着抑制H1650细胞増殖并诱导细胞凋亡（P〈0.05）.相反,SF和吉非替尼对细胞活力抑制和细胞凋亡均具有显着的诘抗作用（48h：0.85〈Q〈1.15,72h：Q〈0.85）.吉非替尼组EGFR蛋白表达水平明显低于吉非替尼组,但p-EGFR在各组间变化不明显（P〉0.05）.下游蛋白分子AKT/p-AKT,ERK/p-ERK表达在吉非替尼,吉非替尼＋SF和吉非替尼＋QKL组均无显著差异（P〉0.05）.结论：清开灵注射液与吉非替尼对H1650细胞具有协同抑制效应,其机制可能是下调EGFR的表达进而改善H1650细胞对EGFR-TKIs的耐药.

Beta-blockers and 1-year clinical outcomes in hospitalized heart failure patients with atrial fibrillation

OBJECTIVE To assess the association between beta-blockers and 1-year clinical outcomes in heart failure(HF)patients with atrial fibrillation(AF),and further explore this association that differs by left ventricular ejection fraction(LVEF)level.METHODS We enrolled hospitalized HF patients with AF from China Patient-centered Evaluative Assessment of Cardiac Events Prospective Heart Failure Study.COX proportional hazard regression models were employed to calculate hazard ratio of betablockers.The primary outcome was all-cause death.RESULTS Among 1762 HF patients with AF(756 women[41.4%]),1041(56%)received beta-blockers at discharge and 1272(72.2%)had an LVEF>40%.During one year follow up,all-cause death occurred in 305(17.3%),cardiovascular death occurred in203 patients(11.5%),and rehospitalizations for HF occurred in 622 patients(35.2%).After adjusting for demographic characteristics,social economic status,smoking status,medical history,anthropometric characteristics,and medications used at discharge,the use of beta-blockers at discharge was not associated with all-cause death[hazard ratio(HR):0.86;95%Confidence Interval(CI):0.65-1.12;P=0.256],cardiovascular death(HR:0.76,95%CI:0.52-1.11;P=0.160),or the composite outcome of all-cause death and HF rehospitalization(HR:0.97,95%CI:0.82-1.14;P=0.687)in the entire cohort.There were no significant interactions between use of beta-blockers at discharge and LVEF with respect to all-cause death,cardiovascular death,or composite outcome.In the adjusted models,the use of beta-blockers at discharge was not associated with all-cause death,cardiovascular death,or composite outcome across the different levels of LVEF:reduced(<40%),mid-range(40%-49%),or preserved LVEF(≥50%).CONCLUSION Among HF patients with AF,the use of beta-blockers at discharge was not associated with 1-year clinical outcomes,regardless of LVEF.

Determination of band alignment between GaO_(x)and boron doped diamond for a selective-area-doped termination structure

An n-GaO_(x)thin film is deposited on a single-crystal boron-doped diamond by RF magnetron sputtering to form the pn heterojunction.The n-Ga Ox thin film presents a small surface roughness and a large optical band gap of 4.85 e V.In addition,the band alignment is measured using x-ray photoelectron spectroscopy to evaluate the heterojunction properties.The GaO_(x)/diamond heterojunction shows a type-Ⅱstaggered band configuration,where the valence and conduction band offsets are 1.28 e V and 1.93 e V,respectively.These results confirm the feasibility of the use of n-GaO_(x)as a termination structure for diamond power devices.

针刺治疗癌痛:从临床证据到科学研究

The increase in cancer incidence and survival rate poses an urgent demand on palliative care and symptom management for cancer survivors.Traditional Chinese medicine(TCM)such as herbal medicine and acupuncture have been widely used in clinical oncology as complementary therapies to conventional cancer treatment[1].

Two new neolignans from Manglietia insignis

Two new neolignans,manneoinsigins A(1)and B(2),together with four known lignans,were isolated from the leaves and stems of Manglietia insignis.The new compounds were established on the basis of extensive spectroscopic analyses.All compounds except 2 were tested for their cytotoxic activity.Compound 3 showed weak cytotoxic activity against the HL-60 human tumor cell line with the IC50 value of 23.5μM.

N-acetylcysteine ameliorates erectile dysfunction in rats with hyperlipidemia by inhibiting oxidative stress and corpus cavernosum smooth muscle cells phenotypic modulation

Hyperlipidemia is a major risk factor for erectile dysfunction(ED).Oxidative stress and phenotypic modulation of corpus cavernosum smooth muscle cells(CcSMCs)are the key pathological factors of ED.N-acetylcysteine(NAC)can inhibit oxidative stress;however,whether NAc can alleviate pathological variations in the corpus cavernosum and promote erectile function recovery in hyperlipidemic rats remains unclear.A hyperlipidemia model was established using 27 eight-week-old male Sprague-Dawley(SD)rats fed a high-fat and high-cholesterol diet(hyperlipidemic rats,HR).In addition,9 male SD rats were fed a normal diet to serve as controls(NC).HR rats were divided into three groups:HR,HR+normal saline(NS),and HR+NAC(n=9 for each group;NS or NAc intraperitoneal injections were administered daily for 16 weeks).Subsequently,the lipid profiles,erectile function,oxidative stress,phenotypic modulation markers of ccsMCs,and tissue histology were analyzed.The experimental results revealed that erectile function was significantly impaired in the HR and HR+NS groups,but enhanced in the HR+NAC group.Abnormal lipid levels,over-activated oxidative stress,and multi-organ lesions observed in the HR and HR+NS groups were improved in the HR+NAC group.Moreover,the HR group showed significant phenotypic modulation of CCSMCs,which was also inhibited by NAC treatment.This report focuses on the therapeutic effect of NAc in restoring erectile function using a hyperlipidemic rat model by preventing CcSMC phenotypic modulationand attenuating oxidativestress.

埃德蒙顿症状评估量表在针灸治疗癌痛患者中的应用:基于肿瘤科住院患者的回顾性分析和一项前瞻性预试验

Background:As pain is the most prominent clinical symptom for cancer patients and closely related to other symptoms,it is necessary to have a comprehensive assessment on promising intervention to improve pain management.Methods:A retrospective study of 489 inpatient cancer patients(1081 visits)was conducted by querying the electronic medical record database to test the reliability and validity of the Edmonton Symptom Assessment System.Data from a pilot prospective randomized controlled study on acupuncture for cancer pain was analyzed to validate the Edmonton Symptom Assessment System(ESAS)as the primary outcome in the integrative oncology research.Results:In the retrospective analysis,scores of the numerical rating scale(NRS)and the ESAS total score were significantly correlated(r=0.15,P=0.02),and the correlation coefficient between NRS and pain sub-scale in ESAS was 0.47(P<0.001).The pilot study showed the proportions of participants experiencing more than a 2-point reduction in NRS at the end of the treatment were 80%(n=12/15)in the acupuncture group and 50%(n=7/14)in the control group,without a significant difference between groups(P=0.13).For the total scores of ESAS,more responders were found in the acupuncture group(n=13/15)compared to that in the control group(n=7/14),with no significant difference between groups(P=0.05).Conclusions:ESAS is suitable for the comprehensive assessment in patients with cancer pain and could be an appropriate outcome measurement in acupuncture research for cancer pain.Trial registration:Registered on 09/07/2018 with ChiCTR1800017023(https://www.chictr/org.cn/edit.aspx?pid=28879&htm=4)

Parameters optimization and nonlinearity analysis of grating eddy current displacement sensor using neural network and genetic algorithm

A grating eddy current displacement sensor(GECDS) can be used in a watertight electronic transducer to realize long range displacement or position measurement with high accuracy in difficult industry conditions.The parameters optimization of the sensor is essential for economic and efficient production.This paper proposes a method to combine an artificial neural network(ANN) and a genetic algorithm(GA) for the sensor parameters optimization.A neural network model is developed to map the complex relationship between design parameters and the nonlinearity error of the GECDS,and then a GA is used in the optimization process to determine the design parameter values,resulting in a desired minimal nonlinearity error of about 0.11%.The calculated nonlinearity error is 0.25%.These results show that the proposed method performs well for the parameters optimization of the GECDS.

Combination of low-energy shock-wave therapy and bone marrow mesenchymal stem cell transplantation to improve the erectile function of diabetic rats

Stem cell transplantation and low-energy shock-wave therapy （LESWT） have emerged as potential and effective treatment protocols for diabetic erectile dysfunction. During the tracking of transplanted stem cells in diabetic erectile dysfunction models, the number of visible stem cells was rather low and decreased quickly. LESWT could recruit endogenous stem cells to the cavernous body and improve the microenvironment in diabetic cavernous tissue. Thus, we deduced that LESWT might benefit transplanted stem cell survival and improve the effects of stem cell transplantation. In this research, 42 streptozotocin-induced diabetic rats were randomized into four groups： the diabetic group （n = 6）, the LESWT group （n = 6）, the bone marrow-derived mesenchymal stem cell （BMSC） transplantation group （n = 15）, and the combination of LESWT and BMSC transplantation group （n = 15）. One and three days after BMSC transplantation, three rats were randomly chosen to observe the survival numbers of BMSCs in the cavernous body. Four weeks after BMSC transplantation, the following parameters were assessed： the surviving number of transplanted BMSCs in the cavernous tissue, erectile function, real-time polymerase chain reaction, and penile immunohistochemical assessment. Our research found that LESWT favored the survival of transplanted BMSCs in the cavernous body, which might be related to increased stromal cell-derived factor-1 expression and the enhancement of angiogenesis in the diabetic cavernous tissue. The combination of LESWT and BMSC transplantation could improve the erectile function of diabetic erectile function rats more effectively than LESWT or BMSC transplantation performed alone.

China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction： Study Design

Background： Despite the rapid growth in the incidence of acute myocardial infarction （AMI） in China, there is limited information about patients＇ experiences after AMI hospitalization, especially on long-tern1 adverse events and patient-reported outcomes （PROs）. Methods： The China Patient-centered Evaluative Assessment of Cardiac Events （PEACE）-Prospective AMI Study will enroll 4000 consecutive AM I patients from 53 diverse hospitals across China and follow them longitudinally for 12 months to docunlent their treatment, recovery, and outcomes. Details of patients＇ medical history, treatment, and in-hospital outcomes are abstracted from medical charts. Comprehensive baseline interviews are being conducted to characterize patient demographics, risk factors, presentation, and healthcare utilization. As part of these interviews, validated instruments are administered to measure PROs, including quality of life, symptoms, mood, cognition, and sexual activity. Follow-up interviews, measuring PROs, medication adherence, risk factor control, and collecting hospitalization events are conducted at 1, 6, and 12 months after discharge. Supporting documents for potential outcomes are collected for adjudication by clinicians at the National Coordinating Center. Blood and urine samples are also obtained at baseline, 1 - and 12-month follow-up. In addition, we are conducting a survey of participating hospitals to characterize their organizational characteristics. Conclusion： The China PEACE-Prospective AMI study will be uniquely positioned to generate new information regarding patient＇s experiences and outcomes alter AMI in China and seiwe as a foundation for quality improveinent activities.

Neonatal surgical outcomes after prenatal diagnosis of complex congenital heart disease: experiences of a perinatal integrated diagnosis and treatment program

Background This study aimed to evaluate neonatal surgical outcomes of patients diagnosed with complex congenital heart disease(CHD)during pregnancy and treated by the newly initiated"perinatal integrated diagnosis and treatment program(PIDTP)".Methods We reviewed clinical data of 207 neonates(surgical age≤28 days)who underwent cardiac surgeries in a single center from January 2017 to December 2018,including 31 patients with referrals from the"PIDTP"(integration group)and 176 patients with routine referral treatment(non-integrated group).Results In the integration group,median admission age was 0 days and median age at surgery was 4 days.In the non-integrated group,median admission age was 8 days(P=0.001)and median age at surgery was 13 days(P=0.001).The emergency surgery rate in patients with duct-dependent defects was 36%in the integration group and 59%(P=0.042)in the non-integrated group,respectively.The in-hospital mortality was 16%in the integration group and 14%(P=0.78)in the non-integrated group.The 2-year cumulative survival rate after surgery was 83.9%±6.6%in the integration group and 80.3%±3.1%(P=0.744)in the non-integrated group.According to multivariable regression analysis,independent risk factors for early mortality of overall neonatal cardiac surgery were low body weight,high serum lactate level,postoperative extracorporeal membrane oxygenation(ECMO)support and prolonged cardiopulmonary bypass(CPB)time.Conclusions PIDTP shortens the postnatal transit interval,reduces the emergency operation rate of neonatal critical CHD,and provides better preoperative status for surgery.Patients treated by the PIDTP tend to have more complicated anatomical deformity and a greater requirement for the operation and postoperative management,but early outcome and follow-up prognosis are satisfactory.