Relationships of Panicle Type Index with Subspecies Characteristics and Yield Traits in Filial Generation of Crosses between Indica and Japonica Rice

Two recombinant inbred line （RIL） populations, one derived from a cross between Zhongyouzao 8 （indica） and Toyonishiki （japonica） and the other from a cross between Qishanzhan （indica） and Akihikari （japonica）, were grown in Liaoning and Sichuan Provinces, China, to study the panicle type index （PTI, the ratio of a number of node position on panicle axis where the secondary branch with the most numerous secondary branch grains is located to the number of primary branches） and its relationships with subspecies characteristics and yield traits. With continuous distribution of PTI and numerous of lines with different PTIs in the progenies, indica-japonica hybridization could be a method for breeding cultivars with ideal panicle type. PTI was significantly influenced by environments, with a significant decrease from Liaoning to Sichuan A significantly negative correlation was found between PTI and most of subspecies characteristics. PTI varied remarkably with different subspecies types. As a whole, it showed a trend of indica （H）〉indicalinous （H＇）〉japonicalinous （K＇）〉japonica （K） However, it is not appropriate to regard PTI as a parameter for subspecies classification in rice because it was recombined in the filial generations of cross between indica and japonica rice. The negative correlations were found between PTI and most of panicle characteristics, as well as yield-related traits. Based on PTI, most of lines from the two populations were middle dominant panicle type （the number of grains on the secondary branch is numerous in middle position of the panicle） and lower dominant panicle type （the number of grains on the secondary branch is numerous in lower position of the panicle and becomes less towards the top of panicle） with significant yield advantages.

The Relationship of Carotid Plaque, Intima Media Thickness (IMT), Resistivity Index (RI) and Pulsatility Index(PI) in Asian-Indian Patients with Acute Ischemic Stroke with and without Type2 DM

Aim: To determine the relationship of carotid plaque, intima media thickness (IMT), resistivity index (RI) and pulsatility index (PI) and prevalence of different risk factors with acute ischemic stroke and stroke subtypes in both diabetic and non-diabetic subjects. Materials and methods: 80 cases of acute ischemic strokes and 40 healthy controls were included in the study. The plaque, IMT, RI and PI were measured by carotid duplex ultrasound. Results: 31 subjects were Type 2 diabetic, 54 hypertensive while 25 were both diabetic and hypertensive. 23 cases (28.75%) had lacunar stroke (LACI), 32 (40%) stroke involving partial anterior circulation(PACI), 10(12.5%) stroke in posterior circulation (PACI) and 15(18.75%) stroke involving total anterior circulation(TACI) respectively. The mean IMT (0.88 ± 0.19mm), RI(0.76 ± 0.05) and PI(1.71 ± 0.19) of patients and mean IMT (0.6±0.09mm), RI (0.61 ± 0.06) and PI (1.53 ± 0.11) of controls were statistically significant (p-0.000). The mean values of IMT, PI and RI were significantly higher in diabetics (IMT-0.90 ± 0.16 VS 0.64 ± 0.11, p-0.013;PI-1.76 ± 0.20 VS 1.49 ± 0.09, P-0.000 and RI-0.76 ± 0.04 VS 0.59 ± 0.06, P-0.000) and similarly the mean values for IMT, PI and RI in hypertensives as compared to controls (IMT-0.88 ± 0.16 vs 0.65 ± 0.10, P-0.006;PI1.69 ± 0.18 vs 1.49 ± 0.09, P-0.000 and RI 0.76 ± 0.04 vs 0.59 ± 0.06, P-0.000). The mean IMT, PI and RI were increased significantly in smokers compared to controls (IMT-0.93 ± 0.20 vs 0.63 ± 0.06, P-0.000;PI-1.82 ± 0.22 vs 1.49 ± 0.09, P-0.000 and RI-0.77 ± 0.04 vs 0.59 ± 0.06, P-0.000). Type 3 plaque accounted for 27 (56.2%) cases and Type 2 plaque 12 (25%) cases. The total number of plaques in patients as compared to controls were significantly more (P-0.0034) and the mean plaque area was 46 mm2 for cases and 20 mm2 for control (P-0.0001). TACI was the most common type of ischemic stroke seen in DM (60%), HTN (66.6%) and smokers (66.7%). Plaques (73.3%), IMT (0.90 ± 0.12), PI(1.72 ± 0.14) and RI (0.76 ± 0.13) were more commonly associated with TACI subtype. On multivariate analysis using ANOVA, the mean PI was highly significant (0.000) in relation to types of plaque. Summary and Conclusions: IMT, RI, PI and plaque type are useful diagnostic parameters for acute ischemic stroke and its subtypes. They can be used as noninvasive tools for predicting and preventing ischemic stroke in smokers as well as subjects with DM and hypertension.

Correlations of Body Mass Index, Japan-Defined and IDF-Defined Waist Circumference, Visceral and Subcutaneous Fat Area with Metabolic Parameters in Japanese Patients with Type 2 Diabetes

Obesity is included in the definition of metabolic syndrome. However, there are many controversies surrounding the evaluation of obesity such as body mass index (BMI) and waist circumference (WC) in the definition of metabolic syndrome among various populations. To understand precisely how various anthropometric indices of obesity influence metabolic parameters, we studied the correlations of BMI, WC (Japanese criteria), WC (IDF criteria), visceral fat area (VFA), subcutaneous fat area (SFA) and the VFA/SFA ratio with metabolic parameters in patients with type 2 diabetes. The influences of BMI and WC on diastolic blood pressure and HDL-cholesterol were larger than VFA, whereas the influences of visceral fat area on triglyceride, very low-density lipoprotein-cholesterol, C-peptide and high-sensitivity C-reactive protein were larger than BMI and WC. WC (IDF) was the strongest determinant of adiponectin among anthropometric indices. Present study showed significant different associations of BMI, Japan- and IDF-defined WC, VFA, SFA and the VFA/SFA ratio with blood pressure, glucose and lipid metabolism, and adipocytokines in Japanese patients with type 2 diabetes.

Glycemic Index, Glycemic Load, and Glycemic Response to Pomelo in Patients with Type 2 Diabetes

Food intake has a great influence on blood glucose in patients with diabetes. This study was to determine the glycemic index（GI） and glycemic load（GL） of a particular pomelo named Majia pomelo and its effects on postprandial glucose（PPG） in patients with type 2 diabetes（T2D）. Twenty healthy subjects and 20 T2D patients（controlled on lifestyle measures and/or metformin） were tested on 2 separate days with 50 g of glucose and 50 g equivalent of carbohydrates from Majia pomelo for GI measurement. To test effects of Majia pomelo on PPG, 19 hospitalized T2D patients（controlled on insulin therapy） were selected for a 9-day study. The dose of insulin for each patient was adjusted on the first 3 days. A total of 100 g Majia pomelo was consumed per meal in the last 3 tested days. Blood glucose was measured to evaluate the glycemic excursions. The GIs for Majia pomelo in healthy individuals and T2D patients were 78.34±1.88 and 72.15±1.95 respectively. The value of GL was as low as 4.23 in diabetic patients with serving size of 100 g pomelo, indicting Majia pomelo as a high GI but low GL fruit. Consumption of Majia pomelo in hospitalized T2D patients did not cause significant glucose fluctuation. It was concluded that high GI pomelo can serve as a low GL fruit if it is consumed with a limited daily amount and thus can be supplied to diabetic patients. These results may mean more varieties of food choices for T2D patients.

Unsaturation index and type 2 diabetes:Unknown,unloved

A useful parameter for interpreting analyses of membrane fatty-acid composition is the unsaturation index(UI),a measure of unsaturation that is calculated as the mean number of cis double bonds per fatty-acid residue multiplied by 100.The UI is a fundamental parameter that contains information about many membrane biophysical properties and behavior.UI is a crucial index for type 2 diabetes(T2D) and other disorders,yet it is not properly considered in the scientific community.The goal of the present editorial is to familiarize the scientific T2 D community with the UI.The idea of early systemic cell-membrane disease necessitates new thinking andsuggests that UI should feature prominently on the research agenda.

Resistive Index for the Evaluation of Renal Damage in Diabetes Mellitus Type 2

Background: One of the most common causes of renal impairment and development of chronic kidney disease is diabetes mellitus type 2 (DM 2). The aim of this prospective study was to determine the role of Resistive Index (RI) as a non-invasive marker for the evaluation of renal impairment in patients with DM 2. Material and Methods: 47 patients with DM 2 in mean age 62.66 ± 10.081 years were included in the study for the period of one year. All of them were with well-compensated diabetes mellitus (HbA1c Results: Patients with RI 0.05 for all). There was significant difference between the groups according to serum creatinine (p = 0.026), GFR (p = 0.044) and the degree of proteinuria (p = 0.001). There was a positive correlation between RI and serum creatinine (r = 0.418;p = 0.001) and between RI and proteinuria (r = 0.396;p = 0.004). A negative correlation relationship between RI and GFR values was found (r = –0.413;p = 0.011). Conclusions: RI may be used as an indicator for the assessment of the severity of renal impairment in patients with DM 2. It correlates well with serum creatinine, GFR and proteinuria, which are proven biochemical parameters indicating the degree of renal damage in patients with DM 2.

质量监测指标在血站实验室ABO血型检测中的应用

目的分析ABO血型检测相关质量监测指标情况及其变化趋势,探讨质量监测指标在血站实验室ABO血型检测过程中的作用。方法以该中心2012—2021年2733642例献血者标本为研究对象,分析2012—2021年ABO血型检测过程中相关质量监测指标,包括特殊血型检出率、标本血型与血液制剂血型不一致率、采血部门血型检测错误率、送检血型与确认结果符合率等,对数据进行整理和分析。结果2012—2021年2733642例献血者特殊血型检出率中位数为0.030%,各年度比较,差异有统计学意义(0.019%~0.051%;χ^(2)=75.612,P<0.01)。标本血型与血液制剂血型不一致率为0.04■,各年度比较,差异有统计学意义(0.00■~0.21■;χ^(2)=15.787,P<0.01),呈递减趋势(χ^(2)=11.178,P<0.01)。采血部门血型检测错误率为0.55?,各年度比较,差异有统计学意义(0.24■~0.77■;χ^(2)=18.247,P<0.05),呈递减趋势(χ^(2)=8.143,P<0.01)。送检血型与确认结果符合率为78.24%,各年度比较,差异无统计学意义(70.94%~84.71%,χ^(2)=11.993,P>0.05),未见明显趋势变化(χ^(2)=0.879,P>0.05)。结论血站实验室应使用质量监测指标对ABO血型检测进行持续监控和过程评价,确保实验室检测能力的有效性、稳定性,为血型检测过程管理持续改进提供数据依据。

基于代表作制度的学者学术水平评价及文献计量学指标参考价值探讨

学术评价对学术活动具有重要的导向作用,以科研质量和学术水平为导向的代表作评价逐步被接受并得到应用实践。对科研论文使用量化文献计量学指标评价的结果与同行评议的结果差异极小,可在一定条件限制下进行代表作筛选。文献计量学指标h指数可同时反映被引最高频次的论文数量及被引量,在评价学者学术水平时,以h指数为基础,参考最高引用论文的引用频次和论文发表时间范围,根据不同学科活跃度和规模确定学者的代表作,可尽可能客观地体现作者的学术水平。

老年营养风险指数联合BNP对老年慢性心力衰竭患者再入院率的预测价值

目的 探讨老年慢性心力衰竭患者的营养风险指数(GNRI)和血浆脑钠肽(BNP)水平与再入院率之间的关系,以评估其在预测患者再入院风险中的潜在价值。方法 纳入2021年1-12月在安顺市人民医院因老年慢性心力衰竭住院的200例患者进行队列研究。好转出院后所有患者随访1年,根据是否再入院分为再入院组和非再入院组,比较2组患者一般资料、GNRI和BNP水平。采用二元logistic回归分析影响老年慢性心力衰竭患者再入院的危险因素。采用受试者工作特征(ROC)曲线分析GNRI和BNP的预测价值。结果 200例患者中共有66例老年慢性心力衰竭患者再入院治疗(再入院组)。再入院组患者的GNRI低于非再入院组,BNP水平显著高于非再入院组,差异均有统计学意义(P<0.05)。二元logistic回归分析结果显示,高密度脂蛋白、BNP和GNRI是影响老年慢性心力衰竭患者再入院的危险因素(P<0.05)。此外,ROC曲线结果显示,GNRI、BNP及二者联合预测老年慢性心力衰竭患者再入院率的曲线下面积(AUC)分别为0.797、0.785、0.883,敏感度分别为74.6%、69.7%、76.9%,特异度分别为78.8%、88.1%、89.4%。结论 BNP和GNRI是影响老年慢性心力衰竭患者再入院的危险因素。GNRI联合BNP检测在老年慢性心力衰竭患者再入院率中有更好的预测价值。

预后营养指数及血清suPAR、TK1在晚期肝癌预后中的预测价值

目的探索预后营养指数(PNI)及血清可溶性尿激酶型纤溶酶原激活物受体(suPAR)、胸苷激酶1(TK1)在晚期肝癌表达意义以及在预后评估中预测的应用价值。方法选取2019年2月至2021年2月收集的92例晚期肝癌患者进行回顾性分析,均进行PNI评估及血清suPAR、TK1检测,比较两组PNI、suPAR、TK1水平。同时,根据患者是否死亡,分为预后不良组(n=28,死亡),预后良好组(n=64,生存),经多因素Cox回归模型分析影响晚期肝癌患者预后独立危险因素,经受试者操作特征(ROC)曲线分析PNI、suPAR、TK1的诊断价值。结果经单因素分析,血管侵犯、门静脉癌栓会对晚期肝癌预后造成影响(P<0.05),且预后不良组PNI低于预后良好组,suPAR、TK1水平高于预后良好组,差异有统计学意义。Kaplan-Meier生存分析显示,PNI高表达、suPAR低表达、TK1低表达、无血管侵犯、无门静脉癌栓者生存时间显著高于PNI低表达、suPAR高表达、TK1高表达、有血管侵犯、有门静脉癌栓者,差异有统计学意义(P<0.05);经多因素Cox回归模型分析,PNI低表达、suPAR高表达、TK1高表达是影响晚期肝癌患者预后的独立危险因素(P<0.05)。经ROC曲线分析,PNI、suPAR、TK1及3项联合诊断晚期肝癌预后的曲线下面积分别为0.818、0.827、0.801、0.957。结论晚期肝癌患者血清suPAR、TK1水平升高,PNI降低,PNI、suPAR、TK1可作为一项简捷而有效的指标,来协助评估晚期肝癌患者的病情严重程度及预后。

大清河流域景观格局动态变化分析

依据2005和2017年大清河流域景观现状的遥感解译成果,采用景观生态学的分析方法,分析了大清河流域生态景观格局现状特征,评价了大清河流域生态完整性及景观多样性特征,以期对大清河流域土地资源的合理利用以及生态文明建设发挥一定的作用。

三酰甘油-葡萄糖指数和尿酸水平对2型糖尿病患者并发颈动脉粥样硬化的影响及风险列线图模型构建

目的探讨三酰甘油-葡萄糖(TyG)指数和尿酸水平对2型糖尿病(T2DM)患者并发颈动脉粥样硬化的影响,并构建T2DM并发颈动脉粥样硬化的风险预测模型。方法选择2020年1月至2022年12月新乡市第一人民医院收治的125例T2DM患者为研究对象。根据是否并发颈动脉粥样硬化将患者分为颈动脉粥样硬化组(n=33)和非颈动脉粥样硬化组(n=92)。通过电子病历系统收集患者的性别、年龄、病程、体质量指数(BMI)、舒张压(DBP)及收缩压(SBP)等一般临床资料;使用全自动生化分析仪测定患者的三酰甘油(TG)、空腹血糖(FPG)、肌酐(Cr)、空腹胰岛素(FINS)、糖化血红蛋白(HbA1c)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、总胆固醇(TC)水平,尿酸酶法测定尿酸水平;应用单因素和多因素logistic回归分析T2DM患者并发颈动脉粥样硬化的危险因素。使用R3.5.3软件绘制预测T2DM患者并发颈动脉粥样硬化的列线图模型,应用受试者操作特征(ROC)曲线对列线图模型预测效能进行检验,并应用Bootstrap法检验模型的准确性。另选择2023年1月至2023年6月新乡市第一人民医院收治的27例T2DM患者对模型预测效能进行验证。结果单因素分析结果显示,颈动脉粥样硬化组与非颈动脉粥样硬化组患者的年龄、病程、Cr、FINS、FPG、TC、TG、TyG指数及尿酸水平比较差异有统计学意义(P<0.05);2组患者的性别、BMI、DBP、SBP、HbA1c、HDL-C、LDL-C比较差异无统计学意义(P>0.05)。多因素logistic回归分析结果显示,年龄≥60岁、高水平Cr、低水平FINS、高水平TC、高TyG指数和高水平尿酸为T2DM患者并发颈动脉粥样硬化的危险因素(P<0.05)。使用Bootstrap法验证基于年龄、Cr、FINS、TC、TyG指数及尿酸水平建立的预测T2DM患者并发颈动脉粥样硬化的风险预测模型结果显示,该模型的C-指数为0.762(95%置信区间:0.728~0.808),ROC曲线下面积、灵敏度、特异度分别为0.779、77.34%、82.46%。27例T2DM患者中实际并发颈动脉粥样硬化8例,风险列线图模型预测并发颈动脉动脉硬化7例;ROC曲线显示,曲线下面积、灵敏度及特异度分别为0.785、80.47%、75.36%。结论高TyG指数及尿酸水平是T2DM患者并发颈动脉粥样硬化的危险因素,基于TyG指数、尿酸水平、年龄、Cr、FINs及TC构建的风险列线图模型对T2DM患者并发颈动脉粥样硬化具有较好的预测效能。

长白山区4种针叶林有效叶面积指数遥感精细反演及空间分布规律

[目的]研究快速、准确、宏观获取不同森林类型有效叶面积指数(LAI_(e))的方法,探讨其空间分布规律,为中小尺度森林LAI_(e)遥感产品的开发提供新思路,为林业精细化监测和森林生态系统碳水循环模拟提供科学可靠的技术手段。[方法]以长白山为研究区,基于Sentinel-2A多光谱影像,运用三维卷积神经网络提取研究区4种针叶林型(长白落叶松、樟子松、红松和红皮云杉)的空间分布;采用区分林型和全样本2种方案,分析样地实测LAI_(e)与7种植被指数(增强植被指数、反红边叶绿素指数、改进简单植被指数、归一化水体指数、归一化植被指数、土壤调节植被指数、简单植被指数)的相关关系;利用各林型对应的最优植被指数,构建区分林型和全样本LAI_(e)与植被指数的回归模型,并基于验证样本数据对比区分林型模型、全样本模型和PROSAIL模型在LAI_(e)反演中的精度表现;结合地理因子分析4种针叶林型LAI_(e)空间格局及变化规律。[结果]所有样本组中7种植被指数与相对的LAI_(e)均存在极显著相关关系(P<0.01),除增强植被指数(EVI)与红松LAI_(e)、简单植被指数(SR)与红皮云杉LAI_(e)外,相关系数均大于0.6,但组间LAI_(e)与不同植被指数相关性具有较大差异;红松、长白落叶松和樟子松LAI_(e)与反红边叶绿素指数(IRECI)相关性最高,红皮云杉、红松LAI_(e)分别与EVI、改进简单植被指数(MSR)相关性最高;4种不同林型模型比全样本模型的R2提高12.7%以上,RMSE降低34.5%;研究区内4种林型LAI_(e)范围在0.37~5.86之间,平均LAI_(e)由高至低依次为红松、长白落叶松、樟子松、红皮云杉。红松对海拔、坡度、坡向的变化最为敏感,红皮云杉、樟子松次之,长白落叶松最小。[结论]不同林型LAI_(e)与遥感植被指数的相关程度存在明显差异,区分林型构建回归模型能够提高LAI_(e)反演精度;区分林型后拟合的线性模型精度整体较PROSAIL模型和全样本模型更高,但LAI_(e)高值区域没有PROSAIL模型表现稳定;4种针叶林型LAI_(e)对地理因子变化的反应差异较大。本研究可为精细区分森林类型的中小尺度针叶林LAI_(e)遥感反演研究提供参考。

宣白承气汤治疗肺热腑实型重症肺炎合并胃肠功能障碍的临床研究

目的探讨宣白承气汤对肺热腑实型重症肺炎合并胃肠功能障碍患者呼吸、氧合功能及血清水通道蛋白(AQP)1和AQP5表达水平的影响。方法60例肺热腑实型重症肺炎合并胃肠功能障碍患者随机分为对照组和试验组各30例。对照组采用西医常规治疗,试验组在对照组治疗基础上加服宣白承气汤,2组疗程均为7 d。比较治疗前后2组患者呼吸频率和氧合指数、机械通气使用率、临床疗效评分(CURB-65、CPIS量表)、中医证候积分、胃肠功能指标[腹内压、血清促胃液素(GAS)和血管活性肠肽(VIP)]、血清AQP1和AQP5水平,记录并比较2组患者治疗期间机械通气天数及ICU住院天数。结果治疗后,与对照组比较,试验组患者呼吸频率、中医证候积分、腹内压均显著下降(P<0.05,P<0.01),血清GAS、AQP1和AQP5水平及氧合指数显著提高(P<0.05,P<0.01)。结论宣白承气汤能显著改善患者的呼吸和氧合功能等临床症状,其机制可能与调控AQP1和AQP5有关。

基于电成像的孔洞型碳酸盐岩储层连通性评价

碳酸盐岩储层非均质性强,孔隙结构复杂,相较于常规碎屑岩储层,其孔隙度、渗透率关系的规律及特征不明显。碳酸盐岩储层的连通性与孔洞特征具有强相关性,且连通性是影响储层渗透率的重要因素,因此,对碳酸盐岩孔洞连通性的评价是孔洞型碳酸盐岩储层评价的关键问题。以伊拉克东南部B油田FQ-1井M组MB21亚油组孔洞型碳酸盐岩储层为例,基于地层微电阻率扫描成像(FMI)测井的高分辨率动态图像,利用最大类间方差算法(OTSU)进行二次迭代分割,识别电成像图像孔洞;根据8连通域标记法标记连通孔洞;提取每个连通孔洞的特征孔径、内部最长通道距离、内部最长通道与水平方向夹角、平均通道宽度这4个几何参数,最终构建孔洞型碳酸盐岩储层连通指数。连通指数在伊拉克东南部B油田FQ-1井M组MB21亚油组孔洞型碳酸盐岩储层的应用表明,利用此方法建立的连通指数与FQ-1井碳酸盐岩储层岩心渗透率相关系数达0.8437,并且连通指数曲线的趋势符合岩心渗透率在储层不同深度的分布情况,证明了连通指数可以指示储层孔隙结构较好、溶蚀孔洞发育的深度段,并可以划分储层中连通性较好的深度区间,该参数对于寻找碳酸盐岩储层渗透层具有重要意义。

脾瘅方加减联合二甲双胍治疗肥胖型2型糖尿病的临床疗效及对其血脂、胰岛素抵抗指数的影响

目的分析脾瘅方加减联合二甲双胍治疗肥胖型2型糖尿病(Diabetes mellitus type 2,T2DM)患者的临床疗效及对其血脂、胰岛素抵抗指数(Homeostatic Model Assessment of Insulin Resistance,HOMA-IR)的影响。方法选取2022年1月—2023年2月期间就诊于济宁市中医院的肥胖型T2DM患者100例作为研究对象,按随机数表法分为对照组和观察组,每组各50例。对照组常规服用二甲双胍0.5 g/次,3次/d;观察组在对照组基础上加用脾瘅方对症加减治疗。治疗12周后观察比较两组患者临床疗效,治疗前后血糖指标[血糖(Fasting blood glucose,FBG)、餐后2 h血糖(2-hour postprandial blood glucose,2 h PBG)、糖化血红蛋(Glycosylated hemoglobinA1c,HbA1c)]、中医证候积分、血脂指标[总胆固醇(Total cholesterol,TC)、甘油三酯(Triglycerides,TG)、低密度脂蛋白(Low density lipoprotein,LDL-C)]、胰岛素指标[空腹胰岛素(Fasting insulin,FINS)、胰岛素抵抗指数(Homeostasis Model Assessment-Insulin Resistance,HOMA-IR)、胰岛β细胞功能指数(Homeostatic model assessment ofβ-cell function,HOMA-β)]及炎症因子[白介素-6(Interleukin-6,IL-6)、超敏C反应蛋白(Highsensitivity C-reactive protein,hs-CRP)]水平。结果治疗后观察组临床总有效率94.00%(47/50)明显高于对照组78.00%(39/50),差异有统计学意义(P<0.05)。治疗后两组患者血糖FBG、2 h PBG、HbAlc指标及中医证候积分均较治疗前降低,差异有统计学意义(P<0.05);且观察组血糖FBG、2 h PBG、HbAlc指标及中医证候积分均明显低于对照组,差异有统计学意义(P<0.05)。治疗后两组患者血脂指标TG、TC、LDL-C均较治疗前降低,差异有统计学意义(P<0.05);且观察组血脂指标TG、TC、LDL-C均明显低于对照组,差异有统计学意义(P<0.05)。治疗后两组患者胰岛素FINS、HOMA-IR指标均较治疗前降低,HOMA-β指标均较治疗前升高,差异有统计学意义(P<0.05);且观察组胰岛素FINS、HOMA-IR指标明显低于对照组,HOMA-β指标明显高于对照组,差异有统计学意义(P<0.05)。治疗后两组患者炎症因子IL-6、hs-CRP水平均较治疗前降低,差异有统计学意义(P<0.05);且观察组炎症因子IL-6、hs-CRP水平均明显低于对照组,差异有统计学意义(P<0.05)。结论脾瘅方加减联合二甲双胍治疗肥胖型T2DM患者能有效调节血糖、血脂水平,改善胰岛素抵抗,减轻炎症反应,临床疗效显著。

NT-proBNP对有创机械通气小儿急性呼吸衰竭28 d内死亡的预测价值研究

目的:研究氧合指数(OI)和N末端B型钠尿肽前体(NT-proBNP)在儿童重症监护病房(PICU)需要有创机械通气的急性呼吸衰竭(ARF)患儿28 d内死亡的预测价值。方法:选取2017—2019年入住本院PICU的需要有创机械通气的111例ARF患儿,收集并分析患儿临床资料,包括儿童机械通气死亡风险评分Ⅲ(PRISMⅢ)、OI、NT-proBNP、机械通气后28 d内生存情况等。采用单因素和多因素logistic回归分析评估ARF患儿28 d内死亡的危险因素。采用受试者工作特征(ROC)曲线评估NT-proBNP、OI和年龄预测28 d生存情况的效果。结果:患儿中位年龄12个月(4.5~66个月),28 d内79例存活(71.17%),32例死亡(28.83%)。与存活组相比,死亡组OI显著升高,NT-proBNP水平显著降低(均P<0.05),两组24 h内PRISMⅢ评分无显著差异(P>0.05)。多因素logistic回归分析结果显示,年龄、OI、NT-proBNP均为ARF患儿28 d内死亡的独立危险因素(P<0.05)。年龄、OI、NT-proBNP及三者联合的ROC曲线下面积(AUC)分别为0.625 0、0.603 6、0.602 8和0.657 2,年龄+OI+NT-proBNP联合具有更好的预测效果。结论:在ARF需机械通气患儿中,最初24 h的年龄、OI和NT-proBNP水平与28 d死亡风险相关;年龄、OI和NT-proBNP三者联合有助于早期识别ARF插管患儿死亡风险。

新发2型糖尿病患者维生素D与胰岛素抵抗的相关性

目的探讨新发2型糖尿病(type 2 diabetes mellitus,T2DM)患者25-羟基维生素D3[25(OH)D3]水平与胰岛素抵抗、尿pH值等因素的相关性。方法分别测定325例非糖尿病患者(对照组)及208例新发T2DM患者(新发T2DM组)的25(OH)D_(3)水平,并根据25(OH)D_(3)水平将新发T2DM患者分成新发T2DM患者维生素D缺乏组(n=92)及新发T2DM患者维生素D非缺乏组(n=116)。非缺乏组25(OH)D_(3)水平为20~100 ng/mL;缺乏组25(OH)D_(3)水平为<20 ng/mL;25(OH)D_(3)与胰岛素抵抗、尿pH值等的相关性采用SPSS 26.0统计软件来进行统计分析。结果新发T2DM组25(OH)D_(3)水平低于对照组(P<0.01);新发T2DM患者维生素D缺乏组的年龄、糖化血红蛋白、胰岛素抵抗指数、尿pH值、游离三碘甲状腺原氨酸(FT_(3))和游离甲状腺素(FT_(4))均高于非缺乏组(P<0.05),而组间的胰岛功能指数、空腹C肽、血清钙、促甲状腺激素(TSH)差异无统计学意义(P>0.05)。Logistic回归分析显示,糖化血红蛋白(OR=1.776,P<0.05)、胰岛素抵抗指数(OR=1.289,P<0.05)是新发T2DM患者维生素D缺乏的危险因素。结论新发T2DM患者25(OH)D_(3)水平低于对照组。较高的糖化血红蛋白和胰岛素抵抗指数是T2DM合并维生素D缺乏的危险因素。

基于MXI测度的街区功能混合类型及分布特征解析——以南京老城区为例

功能混合是城市集约发展和活力提升的关键因素,街区是功能混合的关键尺度层级,其混合测度有助于存量空间功能布局的认知和评估。选用功能混合指数(MXI)来测度南京老城街区单元的功能构成,通过测度结果的GIS地图映射和类型分析,呈现不同功能混合街区单元的空间分布,解析街区功能混合类型的分布与老城区位及空间结构的关联性,归纳街区混合类型的空间分布模式,并提示低混合度街区可能存在的问题。

早发性卵巢功能不全伴睡眠障碍中医证型分布规律探析

目的探究早发性卵巢功能不全(Primary ovarian insufficiency,POI)伴睡眠障碍中医证型分布规律及不同证型间睡眠质量指数分布差异性,以期为POI伴睡眠障碍的辨证治疗和预防提供依据。方法收集符合纳入标准的600例POI患者进行流行病学调查,选取满足睡眠障碍诊断的405例患者作为研究组,采集患者一般资料、中医四诊及性激素水平信息,采用匹兹堡睡眠质量指数(Pittsburgh sleep quality index,PSQI)量表评估患者睡眠情况,分析POI伴睡眠障碍中医证型特征及影响因素。结果POI伴睡眠障碍的主要中医证型为心肾不交证(41.98%)、脾肾阳虚证(22.22%)、肾虚肝郁证(20.99%)和肾虚血瘀证(14.81%),其中心肾不交证入睡时间最长,睡眠时间最短,更依赖于催眠药物,PSQI总分最高;心肾不交证与肾虚肝郁证睡眠质量最差;脾肾阳虚证日间功能障碍得分最高;各中医证型间FSH水平无显著性差异;E 2值由低到高分布为:心肾不交证、肾虚肝郁证、脾肾阳虚证、肾虚血瘀证,多组间比较存在显著差异(P<0.05)。结论POI伴睡眠障碍患者主要中医证型为心肾不交证、脾肾阳虚证、肾虚肝郁证和肾虚血瘀证,其中最常见及睡眠质量最差的中医证型为心肾不交证,可能与雌激素E 2水平密切相关。