Insights into the molecular mechanisms underlying responses of apple trees to abiotic stresses

Apple(Malus×domestica)is a popular temperate fruit crop worldwide.However,its growth,productivity,and quality are often adversely affected by abiotic stresses such as drought,extreme temperature,and high salinity.Due to the long juvenile phase and highly heterozygous genome,the conventional breeding approaches for stress-tolerant cultivars are time-consuming and resource-intensive.These issues may be resolved by feasible molecular breeding techniques for apples,such as gene editing and marker-assisted selection.Therefore,it is necessary to acquire a more comprehensive comprehension of the molecular mechanisms underpinning apples’response to abiotic stress.In this review,we summarize the latest research progress in the molecular response of apples to abiotic stressors,including the gene expression regulation,protein modifications,and epigenetic modifications.We also provide updates on new approaches for improving apple abiotic stress tolerance,while discussing current challenges and future perspectives for apple molecular breeding.

Distinct molecular targets of ProEGCG from EGCG and superior inhibition of angiogenesis signaling pathways for treatment of endometriosis

Endometriosis is a common chronic gynecological disease with endometrial cell implantation outside the uterus.Angiogenesis is a major pathophysiology in endometriosis.Our previous studies have demonstrated that the prodrug of epigallocatechin gallate(ProEGCG)exhibits superior anti-endometriotic and anti-angiogenic effects compared to epigallocatechin gallate(EGCG).However,their direct binding targets and underlying mechanisms for the differential effects remain unknown.In this study,we demonstrated that oral ProEGCG can be effective in preventing and treating endometriosis.Additionally,1D and 2D Proteome Integral Solubility Alteration assay-based chemical proteomics identified metadherin(MTDH)and PX domain containing serine/threonine kinase-like(PXK)as novel binding targets of EGCG and ProEGCG,respectively.Computational simulation and BioLayer interferometry were used to confirm their binding affinity.Our results showed that MTDH-EGCG inhibited protein kinase B(Akt)-mediated angiogenesis,while PXK-ProEGCG inhibited epidermal growth factor(EGF)-mediated angiogenesis via the EGF/hypoxia-inducible factor(HIF-1a)/vascular endothelial growth factor(VEGF)pathway.In vitro and in vivo knockdown assays and microvascular network imaging further confirmed the involvement of these signaling pathways.Moreover,our study demonstrated that ProEGCG has superior therapeutic effects than EGCG by targeting distinct signal transduction pathways and may act as a novel antiangiogenic therapy for endometriosis.

Extended wet sieving method for determination of complete particle size distribution of general soils

The traditional standard wet sieving method uses steel sieves with aperture?0.063 mm and can only determine the particle size distribution(PSD)of gravel and sand in general soil.This paper extends the traditional method and presents an extended wet sieving method.The extended method uses both the steel sieves and the nylon filter cloth sieves.The apertures of the cloth sieves are smaller than 0.063 mm and equal 0.048 mm,0.038 mm,0.014 mm,0.012 mm,0.0063 mm,0.004 mm,0.003 mm,0.002 mm,and 0.001 mm,respectively.The extended method uses five steps to separate the general soil into many material sub-groups of gravel,sand,silt and clay with known particle size ranges.The complete PSD of the general soil is then calculated from the dry masses of the individual material sub-groups.The extended method is demonstrated with a general soil of completely decomposed granite(CDG)in Hong Kong,China.The silt and clay materials with different particle size ranges are further examined,checked and verified using stereomicroscopic observation,physical and chemical property tests.The results further confirm the correctness of the extended wet sieving method.

Optimizing the Diameter of Plugging Balls in Deep Shale Gas Wells

Deep shale gas reserves that have been fractured typically have many relatively close perforation holes. Due to theproximity of each fracture during the formation of the fracture network, there is significant stress interference,which results in uneven fracture propagation. It is common practice to use “balls” to temporarily plug fractureopenings in order to lessen liquid intake and achieve uniform propagation in each cluster. In this study, a diameteroptimization model is introduced for these plugging balls based on a multi-cluster fracture propagationmodel and a perforation dynamic abrasion model. This approach relies on proper consideration of the multiphasenature of the considered problem and the interaction force between the involved fluid and solid phases. Accordingly,it can take into account the behavior of the gradually changing hole diameter due to proppant continuousperforation erosion. Moreover, it can provide useful information about the fluid-dynamic behavior of the consideredsystem before and after plugging. It is shown that when the diameter of the temporary plugging ball is1.2 times that of the perforation hole, the perforation holes of each cluster can be effectively blocked.

Gut microbial metabolite targets HDAC3-FOXK1-interferon axis in fibroblast-like synoviocytes to ameliorate rheumatoid arthritis

Rheumatoid arthritis(RA)is an autoimmune disease.Early studies hold an opinion that gut microbiota is environmentally acquired and associated with RA susceptibility.However,accumulating evidence demonstrates that genetics also shape the gut microbiota.It is known that some strains of inbred laboratory mice are highly susceptible to collagen-induced arthritis(CIA),while the others are resistant to CIA.Here,we show that transplantation of fecal microbiota of CIA-resistant C57BL/6J mice to CIA-susceptible DBA/1J mice confer CIA resistance in DBA/1J mice.C57BL/6J mice and healthy human individuals have enriched B.fragilis than DBA/1J mice and RA patients.Transplantation of B.fragilis prevents CIA in DBA/1J mice.We identify that B.fragilis mainly produces propionate and C57BL/6J mice and healthy human individuals have higher level of propionate.Fibroblast-like synoviocytes(FLSs)in RA are activated to undergo tumor-like transformation.Propionate disrupts HDAC3-FOXK1 interaction to increase acetylation of FOXK1,resulting in reduced FOXK1 stability,blocked interferon signaling and deactivation of RA-FLSs.We treat CIA mice with propionate and show that propionate attenuates CIA.Moreover,a combination of propionate with anti-TNF etanercept synergistically relieves CIA.These results suggest that B.fragilis or propionate could be an alternative or complementary approach to the current therapies.

镁质膨胀剂微胶囊对砂浆裂缝自修复效果的影响研究

混凝土呈脆性、内部易产生细小裂缝,从而影响混凝土的整体性和耐久性。以氧化镁膨胀剂、硅质材料和水泥为囊芯,硅酸盐材料为囊壁,制备了四种粒径的镁质膨胀剂微胶囊。研究了各粒径微胶囊掺量对砂浆试件抗压强度的影响;以强度恢复率和裂缝面积修复率作为评价指标,探讨了微胶囊对砂浆裂缝自修复性能的影响;采用X射线衍射(X-ray diffraction,XRD)和扫描电子显微镜(scanning electron microscopy,SEM)对裂缝处自修复物质进行物相和形貌分析,探讨了自修复机理。结果表明,当微胶囊掺量不超过10%时,微胶囊的掺入提升了砂浆试件的抗压强度。当微胶囊掺量为10%、粒径为1.18~2.36mm、二次养护14 d时,宽度0.3 mm以下的裂缝完全修复,裂缝面积修复率达到100%,远高于空白组。结合XRD和SEM分析可知,裂缝修复的主要机理是裂缝中C-S-H凝胶、Ca(OH)_(2)、CaCO_(3)、AFt和Mg(OH)_(2)等高强、微膨胀物质大量生成,有效填充了裂缝空间,促进了裂缝的愈合,从而显著提升了砂浆的耐久性与整体性能。

中西医结合防治老年髋部骨折围手术期下肢深静脉血栓形成的疗效观察

目的 探讨加味补中益气汤联合低分子量肝素钙防治老年髋部骨折围手术期下肢深静脉血栓(DVT)形成的临床价值。方法 选取2020年4月至2022年2月四川省骨科医院老年骨科1、2病房收治的符合诊断标准的78例老年髋部骨折患者为研究对象,按照随机数字表法分为对照组和试验组,每组39例。对照组给予常规剂量低分子量肝素钙治疗,试验组在对照组治疗基础上加用加味补中益气汤治疗,比较两组患者术后DVT发生率,患肢大腿、小腿周径差,血红蛋白、血小板计数和凝血四项等指标。结果 试验组术后DVT发生率低于对照组,但差异无统计学意义(P>0.05);两组患肢大、小腿周径差在术后第7天均较术前降低(P<0.05);试验组术后第7天患肢大、小腿周径差均小于对照组(P<0.05)。试验组术后第3、7天血红蛋白计数均高于对照组(P<0.05)。两组术前、术后第1、3、7天凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、纤维蛋白原(FIB)计数比较,差异均无统计学意义(P>0.05)。试验组术前、术后第1、3、7天凝血酶时间(TT)指标与对照组比较,差异均有统计学意义(P<0.05);试验组术后第3、7天血清D-二聚体计数明显低于对照组(P<0.05)。结论加味补中益气汤联合低分子量肝素钙预防老年髋部骨折围手术期下肢DVT形成临床疗效确切,在改善患肢肿胀程度、提高血红蛋白计数、降低D-二聚体计数等方面均优于单用低分子量肝素钙。

动态心电图和动态血压监测老年高血压并髋部骨折患者对心脑血管事件发生的风险分析

目的分析不同年龄段老年高血压并发髋部骨折患者同步监测的动态血压和动态心电图变化情况,评估心脑血管事件相关风险。方法选取2018年7月至2022年1月在四川省骨科医院住院的65岁及以上老年高血压并发髋部骨折患者162例,分为低龄老年组(65~79岁)84例和高龄老年组(≥80岁)78例,对每位患者行动态心电图及动态血压同步监测,并对其结果进行分析。结果两组患者平均收缩压增高,两组间比较差异无统计学意义(P>0.05);低龄老年组平均舒张压在24 h、日间及夜间均高于高龄老年组(P<0.05);低龄老年组出现平均脉压差大、血压节律紊乱、低心率变异性、频发早搏、阵发性室上速及无症状心肌缺血人数均少于高龄老年组(P<0.05);低龄老年组24 h平均心率慢于高龄老年组(P<0.05)。结论高龄老年组患者血压节律紊乱更突出、心律失常发生率更高,需动态监测血压及心电图,及时发现异常并进行针对性调整,从而积极预防心脑血管事件的发生。

消增强骨片联合西药在原发性骨质疏松症中的应用价值及安全性分析

目的:分析消增强骨片联合西药在原发性骨质疏松症中的应用价值及安全性。方法:选取2021年7月~2022年7月我院收治的原发性骨质疏松症患者154例,按照分层抽样法将患者分为对照组、研究组各77例;对照组给予患者西药治疗,研究组在对照组基础上加服消增强骨片。比较两组患者血钙(Ca)、血磷(P)、碱性磷酸酶(ALP)、骨钙素(BGP)、总I型胶原氨基端延长肽(t-PINP)、β胶原降解产物(β-CROSSL)、股骨颈骨密度、股骨三角区骨密度变化、腰1-4椎体平均值、VAS评分、OKT评分、生活质量以及治疗效果。结果:治疗后与对照组相比,研究组血Ca较高、P、ALP含量较低(P<0.05);治疗后与对照组相比,研究组t-PINP较低、β-CROSSL指标水平较高(P<0.05);治疗后与对照组相比,研究组股骨颈骨密度、股骨三角区骨密度、腰1-4椎体平均值较高(P<0.05);治疗后与对照组相比,研究组VAS评分较低、OKT评分较高(P<0.05);治疗后与对照组相比,研究组生活质量较高(P<0.05);对照组治疗效果低于研究组(P<0.05)。结论:使用中医消增强骨片联合西药对原发性骨质疏松症患者进行治疗可有效改善骨代谢生化指标,改善原发性骨质疏松症患者的疼痛程度,促进骨形成,进而起到治疗原发性骨质疏松症的作用。

益气健脾活血法在老年髋部骨折围手术期并发胃肠功能紊乱中的预防价值分析

目的:探究益气健脾活血法在老年髋部骨折围手术期并发胃肠功能紊乱中的预防价值。方法:选取2020年1月~2023年1月我院收治的老年髋部骨折患者224例,按照随机法将患者分为对照组、试验组,各112例。对照组患者行常规治疗,试验组患者在常规治疗基础上行辨证论治,使用益气健脾活血法进行治疗。分析两组患者治疗前后临床症状、凝血功能、炎症指标、胃肠功能指标、胃肠功能紊乱发生率以及不良反应发生率。结果:相较于对照组,试验组患者临床症状改善较好(P<0.05);治疗后相较于对照组,试验组PT、APTT上升幅度较大(P<0.05);治疗后两组患者炎症相关指标均有所下降,且与对照组相比,试验组SAA、TNG-α、IL-6水平均较低(P<0.05);治疗后两组患者胃肠功能相关指标均得到提升,且相较于对照组,试验组胃泌素、胃动素水平较高(P<0.05);服药前、服药3剂、服药6剂后对照组、试验组胃肠功能紊乱发生率相比,无差异性(P>0.05);停药4d后试验组胃肠功能紊乱发生率低于对照组(P<0.05);与对照组相比,试验组患者治疗后不良反应发生率略高(P>0.05)。结论:使用益气健脾活血法对行手术治疗老年髋部骨折手术患者进行治疗,能够有效改善患者凝血功能、炎症以及胃肠功能指标,有效的预防胃肠功能紊乱发生情况,起到较好的治疗效果。

腰肌指数、腰椎椎体骨髓脂肪分数与骨密度关系及对骨质疏松的诊断效能

目的探讨腰肌指数(psoas muscle index,PMI)、腰椎椎体骨髓脂肪分数(fat fraction,FF)与骨密度(bone mineral density,BMD)间的关系及对骨质疏松(osteoporosis,OP)的诊断效能。方法选取四川省骨科医院2018年3月至2021年5月BMD筛查的200例检查者作为研究对象,根据BMD分为骨量正常组(T值≥-1.0,n=105)、骨量减少组(-2.5<T值<-1.0,n=57)、OP组(T值≤-2.5,n=38)。对比三组一般资料及BMD、PMI、腰椎椎体骨髓FF,分析PMI、腰椎椎体骨髓FF与BMD间关系,建立OP的Logistic回归模型,评估PMI、腰椎椎体骨髓FF对OP的诊断效能。结果OP组BMD、PMI低于骨量减少组、骨量正常组,FF高于骨量减少组、骨量正常组(P<0.05);骨量减少组的BMD、PMI低于骨量正常组,FF高于骨量正常组(P<0.05);PMI与BMD呈正相关,腰椎椎体骨髓FF与BMD呈负相关(P<0.05);年龄、身体质量指数(body mass index,BMI)、PMI、腰椎椎体骨髓FF是骨量减少的影响因素,年龄、PMI、腰椎椎体骨髓FF是OP的影响因素(P<0.05);腰椎椎体骨髓FF联合诊断OP的受试者工作特征(receiver operating characteristic,ROC)曲线下的面积(area under curve,AUC)为0.853,大于单一指标诊断值(P<0.05)。结论PMI、腰椎椎体骨髓FF是BMD的独立影响因素,二者联合在OP诊断中具有较高效能。

植物来源表面活性剂、碱组合剂在含盐洗涤块产品中的应用研究

文章以清除污垢的能力、泡沫量作为洗碗机专用洗涤块的清洁能力评价指标,研究4种不同植物来源表面活性剂、碱组合剂与盐的清洁配伍能力。结果表明,椰油基葡糖苷与脂肪酸甲酯磺酸钠的使用比例为2∶1、碳酸钠和柠檬酸钠比例为2∶3时,配方展现出优秀的清除污垢能力且泡沫量少的优点,在实际运用中取得良好效果。

Multi-Antenna Jammer Assisted Covert Communications in Data Collected IoT with NOMA

In this paper,we investigate covert communications in data collected IoT with NOMA,where the paired sensor nodes S_(m) and S_(n) transmit covert messages to a legitimate receiver(Bob)in the presence of a Warden(Willie).To confuse the detection at Willie,an extra multi-antenna friendly jammer(Jammer)has been employed to transmit artificial noise(AN)with random power.Based on the CSI of Willie is available or not at Jammer,three AN transmission schemes,including null-space artificial noise(NAN),transmit antenna selection(TAS),and zeroforcing beamforming(ZFB),are proposed.Furthermore,the closed-form expressions of expected minimum detection error probability(EMDEP)and joint connection outage probability(JCOP)are derived to measure covertness and reliability,respectively.Finally,the maximum effective covert rate(ECR)is obtained with a given covertness constraint.The numerical results show that ZFB scheme has the best maximum ECR in the case of the number of antennas satisfies N>2,and the same maximum ECR can be achieved in ZFB and NAN schemes with N=2.Moreover,TAS scheme also can improve the maximum ECR compared with the benchmark scheme(i.e.,signal-antenna jammer).In addition,a proper NOMA node pairing can further improve the maximum ECR.

Targeting LncRNA LLNLR-299G3.1 with antisense oligonucleotide inhibits malignancy of esophageal squamous cell carcinoma cells in vitro and in vivo

Accumulating evidence has indicated that long non-coding RNAs(lncRNAs)play critical roles in the development and progression of cancers,including esophageal squamous cell carcinoma(ESCC).However,the mechanisms of lncRNAs in ESCC are still incompletely understood and therapeutic attempts for in vivo targeting cancer-associated lncRNA remain a challenge.By RNA-sequencing analysis,we identified that LLNLR-299G3.1 was a novel ESCC-associated lncRNA.LLNLR-299G3.1 was up-regulated in ESCC tissues and cells and promoted ESCC cell proliferation and invasion.Silencing of LLNLR-299G3.1 with ASO(antisense oligonucleotide)resulted in opposite effects.Mechanistically,LLNLR-299G3.1 bound to cancerassociated RNA binding proteins and regulated the expression of cancer-related genes,including OSM,TNFRSF4,HRH3,and SSTR3.ChIRP-seq(chromatin isolation by RNA purification and sequencing)revealed that these genes contained enriched chromatin binding sites for LLNLR-299G3.1.Rescue experiments confirmed that the effects of LLNLR-299G3.1 on ESCC cell proliferation were dependent on interaction with HRH3 and TNFRSF4.Therapeutically,intravenous delivery of placental chondroitin sulfate A binding peptide-coated nanoparticles containing antisense oligonucleotide(pICSA-BP-ANPs)strongly inhibited ESCC tumor growth and significantly improved animal survival in vivo.Overall,our results suggest that LLNLR-299G3.1 promotes ESCC malignancy through regulating gene-chromatin interactions and targeting ESCC by pICSA-BP-ANPs may be an effective strategy for the treatment of lncRNA-associated ESCC.

我院精细化绩效管理的实践与思考

公立医院实施精细化绩效管理是推进医院管理能力现代化的重要举措。湘南学院附属医院建立以财务信息为中心、医疗和管理信息为辅助的全面绩效管理信息系统,为医院及时、精准地掌握不同层级的医疗活动状况提供信息支持;通过设立不同维度的绩效考评指标和奖惩体系,有效促进了医院的业务发展和技术进步。

鲑降钙素鼻用喷雾剂辅助治疗对内分泌失调性骨质疏松症患者骨密度及骨转化标志物水平的影响

目的探讨鲑降钙素鼻用喷雾剂辅助治疗对内分泌失调性骨质疏松症患者骨密度及骨转化标志物(BTMs)水平的影响。方法选取2019年5月至2020年5月四川省骨科医院收治的内分泌失调性骨质疏松症患者88例,根据随机数字表法分为对照组和观察组,各44例。对照组予碳酸钙D_(3)片、盐酸曲马多缓释片口服治疗,观察组在对照组基础上予鲑降钙素鼻用喷雾剂鼻腔喷入治疗,2组均治疗6个月。比较2组临床疗效,治疗前后骨密度、BTMs水平、疼痛视觉模拟量表(VAS)评分,骨折及不良反应发生情况。结果观察组总有效率明显高于对照组[95.5%(42/44)比77.3%(34/44)],差异有统计学意义(P=0.001)。治疗后,2组L_(1~4)、股骨颈及Ward三角骨密度均高于治疗前,且观察组均高于对照组[(0.84±0.11)g/cm^(2)比(0.79±0.10)g/cm^(2)、(0.75±0.09)g/cm^(2)比(0.70±0.08)g/cm^(2)、(0.61±0.08)g/cm^(2)比(0.59±0.07)g/cm^(2)](均P<0.05)。治疗后,2组Ⅰ型胶原氨基端前肽、Ⅰ型胶原羧基末端肽交联β特殊序列水平均低于治疗前,且观察组均低于对照组,25-羟基维生素D水平均高于治疗前,且观察组高于对照组,差异均有统计学意义(均P<0.05)。治疗后,2组疼痛VAS评分均低于治疗前,且观察组低于对照组,差异均有统计学意义(均P=0.001)。治疗期间2组骨折及不良反应发生率差异均无统计学意义(均P>0.05)。结论鲑降钙素鼻用喷雾剂辅助治疗内分泌失调性骨质疏松症患者,可有效调节BTMs表达水平并促进骨密度升高,且不增加不良反应的发生。

乳腺背景超声分型与乳腺癌组织学及形态学特征的相关性

目的:探讨乳腺背景超声分型与乳腺癌组织学及形态学特征的相关性。方法:选取2017年9月—2018年9月在新疆医科大学附属肿瘤医院经病理证实的乳腺癌患者119例,根据乳腺背景超声分型方法分为致密型和非致密型,其中致密型78例,非致密型41例,采用卡方检验分析不同乳腺背景下乳腺癌的组织学特征及形态学特征。结果:年龄<50岁与≥50岁、有无绝经在致密型与非致密型乳腺组间差异有统计学意义(P<0.05),T分级、N分级、组织学分级、淋巴管浸润在致密型与非致密型乳腺组间差异无统计学意义(P>0.05),有无高回声晕在致密型与非致密型乳腺间差异有统计学意义(P<0.05),边界、纵横比、血流分级在致密型与非致密型乳腺间差异无统计学意义(P>0.05)。结论:乳腺背景超声分型受年龄及月经状态的影响,高回声晕在非致密型乳腺中较易显示,结合乳腺背景超声分型观察高回声晕有助于提高乳腺癌的诊断。

曲前列尼尔治疗心脏移植患者肺动脉高压15例疗效分析

目的总结分析曲前列尼尔对心脏移植患者肺动脉高压的治疗效果。方法回顾性分析15例术前合并肺动脉高压心脏移植患者术后使用曲前列尼尔降肺动脉压力的临床资料,比较使用曲前列尼尔前后血流动力学[有创动脉收缩压(SBP)、心率(HR)、中心静脉压(CVP)、乳酸(Lac)和尿量、肺动脉收缩压(PASP)、三尖瓣环收缩期位移(TAPSE)和血肌酐(Cr)、谷丙转氨酶(ALT)、总胆红素(TIBL)和血小板计数(PLT)]的变化,同时记录使用过程中出现的不良反应。结果使用前后SBP、HR无明显变化,CVP在用后16 h开始与用前比差异有统计学意义(用后16 h,P=0.00;用后24 h,P=0.00;用后48 h,P=0.00;用后72 h,P=0.00);Lac从用后16 h开始与用前比较差异有统计学意义(用后16 h,P=0.04;用后24 h,P=0.04;用后48 h,P=0.02;用后72 h,P=0.01);尿量在用后16 h至48 h与用前比较差异有统计学意义(用后16 h,P=0.02;用后24 h,P=0.005;用后48 h,P=0.006), PASP在用后1 d开始与用前比较差异有统计学意义(用后1 d,P=0.00;用后2 d,P=0.00;用后3 d,P=0.00);TAPSE在用后2 d和3 d与用前比较差异有统计学意义(用后2 d,P=0.00;用后3 d,P=0.00)。Cr在用后2 d开始与用前比较差异有统计学意义(用后2 d,P=0.01;用后3 d,P=0.00);TIBL在用后1 d开始与用前比较差异有统计学意义(用后1 d,P=0.01;用后2 d,P=0.03;用后3 d,P=0.006),ALT、PLT使用前后差异无统计学意义(P>0.05)。在使用过程中4例(26.7%)患者出现颜面及胸部皮肤潮红;1例(6.7%)患者出现明显血压下降,1例(6.7%)患者出现严重恶心呕吐。结论曲前列尼尔可有效降低心脏移植患者的肺动脉压力和中心静脉压,改善右心收缩功能,改善灌注,改善肝肾功能,但在使用过程中需注意其不良反应。

个性化健康管理对青少年代谢综合征的心理评价

目的评价个性化健康管理对青少年代谢综合征患者心理指导的效果:方法随机选取年龄为16-30岁的青少年代谢综合征患者130例,采用随机分配原则分为两组,对照组(65例)和观察组(65例)。对照组按健康干预常规进行,观察组在健康常规干预的基础上实施个性化健康管理。于干预1年后分别对两组患者干预前后的肥胖、体质指数、血压、血脂、血糖指标进行比较,同时干预前后进行CDSMQ自我管理能力(主要从生活管理、饮食管理、不良嗜好管理、服药管理、急救管理、运动管理、情绪认知管理7个方面进行评分)、SCL-90心理健康症状自评量表以及患者满意度调查比较结果两组患者干预后体质指数、腰围、血压、血脂、血糖等指标较干预前均有所下降(P<0.05),且干预后,实施个性化健康管理观察组改善程度明显优于对照组(P<0.05),观察组的自我管理能力、心理健康评分均优于对照组(P<0.05),并且患者满意度调查明显提高(P<0.05)结论个性化健康管理对青少年代谢综合征患者的各项代谢指标能有效改善,提高患者的自我管理能力,明显改善焦虑与惊恐程度,有助于恢复患者自信心,提升患者的生活质量,促进青少年的生理与心理健康发展。

非综合征型耳聋的不同听力学表型与常见致聋基因的相关性

目的:探讨非综合征型耳聋(NSHL)患者的发病年龄、听力学特征等与核基因GJB2、GJB6和线粒体DNA(mtDNA)A1555G、C1494T突变的相关性。方法:按不同的听力学表型对269例NSHL患者进行分组及GJB2、GJB6和mtDNA A1555G、C1494T基因检测。结果:269例NSHL患者GJB2和GJB6的检出率分别为16.73%和0.37%,mtDNA A1555G和C1494T检出率分别为23.79%和0.37%;按患者听力损失程度分为轻度、中度、重度、极重度,其构成比分别为9.67%、27.88%、23.42%和39.03%,GJB2和GJB6在4组间的总检出率分别为7.69%、8.00%、25.40%和20.95%,组间差异有统计学意义(χ^2=10.163,P=0.017);mtDNA A1555G和C1494T总突变率分别为38.46%、34.67%、30.16%和9.52%,组间差异有统计学意义(χ^2=20.932,P<0.001);在语前聋组(0~3岁)、学龄前组(3~6岁)、学龄组(6~18岁)及成年组中,GJB2和GJB6总突变率分别为26.57、13.51%、5.56%、1.89%,mtDNA A1555G和C1494T总突变率分别为14.69%、24.32%、41.67%、37.74%,组间差异有统计学意义(χ^2=21.199、18.357,均P<0.001)。结论:核基因GJB2和GJB6致病突变主要在重度和极重度耳聋中检出,mtDNA基因突变在各个程度的耳聋中均有检出,听力损失越严重,检出率越低;语前聋中核基因GJB2和GJB6致病突变多于mtDNA A1555G和C1494T,语后聋中主要为mtDNA A1555G和C1494T突变。