Evaluation of Serum Zinc Status of Pregnant Women in the China Adult Chronic Disease and Nutrition Surveillance (CACDNS) 2015

Objective: The purpose of this study was to evaluate serum zinc status of pregnant women in the China Adult Chronic Disease and Nutrition Surveillance (CACDNS) in 2015–2016. Methods: A total of 7147 apparently healthy pregnant women were randomly selected in 302 national monitoring sites. Information on age, race, residence region, education, pregnancy, and family income per annum was collected, and the concentration of serum zinc was determined. The evaluation of serum zinc status was further performed according to the recommendations by the International Zinc Nutrition Consultative Group (IZiNCG). Results: The median concentration of serum zinc was 858.9 μg/L with an interquartile range (IQR) of 712.9 μg/L and 1048.9 μg/L, while the overall prevalence of zinc deficiency was 3.5% with a 95% confidence interval (CI) of 3.0% and 3.9%. Serum zinc status of pregnant women changed greatly in the different categories, particular in pregnancy and family income per annum (p < 0.05), but no significant difference was observed in the prevalence of zinc deficiency (p > 0.05). Conclusions: The lower prevalence of zinc deficiency generally indicated a better zinc status for pregnant women in the CACDNS in 2015–2016. However, a well-designed evaluation system of zinc status for pregnant women should be continually optimized and improved by inducing more parameters such as biochemical, dietary, or functional indicators.     

Zinc Pharmacotherapy for Elderly Osteoporotic Patients with Zinc Deficiency in a Clinical Setting

Although there have been reported associations between zinc and bone mineral density (BMD), no reports exist on the effect of zinc treatment in osteoporotic patients. Therefore, we investigated the efficacy and safety of zinc pharmacotherapy in Japanese elderly patients. The present investigation included 122 osteoporotic patients with zinc deficiency, aged ≥65 years, who completed 12 months of follow-up. In addition to standard therapy for osteoporosis in a clinical setting, the subjects received oral administration of 25 mg zinc (NOBELZIN^®, an only approved drug for zinc deficiency in Japan) twice a day. BMD and laboratory data including bone turnover markers were collected at 0 (baseline), 6, and 12 months of zinc treatment. Neither serious adverse effects nor incident fractures were seen during the observation period. Serum zinc levels were successfully elevated by zinc administration. BMD increased significantly from baseline at 6 and 12 months of zinc treatment. Percentage changes of serum zinc showed significantly positive associations with those of BMD. Bone formation markers rose markedly from the baseline values, whereas bone resorption markers displayed moderate or no characteristic changes. Additive zinc supplementation may contribute to BMD augmentation ensuing the prevention of fracture occurrence in elderly osteoporotic patients with zinc deficiency.     

Association between Reduced Serum Zinc and Diastolic Dysfunction in Maintenance Hemodialysis Patients

Diastolic dysfunction is an emerging challenge among hemodialysis (HD) patients, and the associations between serum zinc with echocardiographic parameters and diastolic function remain uncertain. A total of 185 maintenance HD patients were stratified by the tertiles of serum zinc level to compare their clinical characteristics and echocardiography. Correlations of serum zinc levels with echocardiographic parameters were examined using Pearson’s analysis. Univariate and multivariate logistic regression analyses were performed to investigate the determinants of E/e’ ratio >15 and left atrial volume index (LAVI) > 34 mL/m², both indicators of diastolic dysfunction. Patients belonging to the first tertile of serum zinc level had a significantly higher E/e’ ratio and LAVI. Serum zinc levels were negatively correlated with E (r = −0.204, p = 0.005), E/e’ ratio (r = −0.217, p = 0.003), and LAVI (r = −0.197, p = 0.007). In a multivariate analysis, older age, diabetes, coronary artery disease, and lower serum zinc levels (OR = 0.974, 95% CI = 0.950–0.999, p = 0.039) were significantly associated with E/e’ ratio >15. Furthermore, diabetes and lower serum zinc levels (OR = 0.978, 95% CI = 0.958–0.999, p = 0.041) were significantly associated with LAVI >34 mL/m². Reduced serum zinc level was significantly associated with diastolic dysfunction among HD patients. Further prospective studies are warranted to investigate whether zinc supplementation can attenuate cardiac dysfunction in maintenance HD patients.     

XPO4、MAP2K4及ZIC1在子宫内膜癌组织表达及其对子宫内膜癌患者预后评估价值

目的探讨输出蛋白(XPO)4、丝裂原活化蛋白激酶(MAP2K)4及小脑锌指结构蛋白(ZIC)1在子宫内膜癌(EC)组织中的表达及其对EC患者的预后评估价值。 方法选择2017年6月至2018年6月,无锡市妇幼保健院、复旦大学附属中山医院青浦分院收治的147例EC患者为研究对象。采用免疫组化染色法检测患者EC组织及癌旁正常组织XPO4、MAP2K4、ZIC1表达水平。采用χ²检验,对患者EC组织及癌旁正常组织XPO4、MAP2K4、ZIC1阳性率,以及不同临床病理特征患者EC组织XPO4、MAP2K4、ZIC1阳性率进行比较。采用Two-stage检验,对EC组织XPO4、MAP2K4、ZIC1呈阳性与呈阴性患者的3年总体生存(OS)率进行比较。本研究遵循的程序经过无锡市妇幼保健院、复旦大学附属中山医院青浦分院伦理委员会批准(审批文号：20160803、20160502)。 结果①本组患者EC组织XPO4、MAP2K4阳性率分别为34.7%(51/147)、38.1%(56/147),显著低于癌旁正常组织的66.7%(98/147)与72.8%(107/147),并且差异均有统计学意义(χ²＝30.060、35.812,P<0.001)。本组患者EC组织ZIC1阳性率为72.1%(106/147),显著高于癌旁正常组织的40.1%(59/147),并且差异亦有统计学意义(χ²＝30.512、P<0.001)。②不同年龄、EC直径及绝经与否患者的EC组织XPO4、MAP2K4、ZIC1阳性率比较,差异均无统计学意义(P>0.05)。不同国际妇产科联盟(FIGO)临床分期、组织病理学分级、子宫肌层侵犯程度及淋巴结转移与否患者EC组织XPO4、MAP2K4、ZIC1阳性率分别比较,差异均有统计学意义(P<0.05)。③本组EC组织XPO4、MAP2K4呈阴性患者的3年OS率分别为42.7%、38.5%,均显著低于XPO4、MAP2K4呈阳性者的68.6%、71.4%,并且差异均有统计学意义(χ²＝8.960、P＝0.003,χ²＝15.077、P<0.001)。EC组织ZIC1呈阳性患者3年OS率为35.8%,显著低于ZIC1呈阴性者的68.3%,并且差异亦有统计学意义(χ²＝12.579、P<0.001)。 结论在EC组织中,XPO4、MAP2K4呈低表达,而ZIC1则呈高表达。XPO4、MAP2K4、ZIC1表达水平与患者组织病理学分级、淋巴结转移、FIGO临床分期、子宫肌层侵犯及3年OS率显著相关,其在评估EC患者发病、进展及预后中具有一定价值。     

儿童青少年膳食及血清锌状况与心血管疾病代谢危险因素的关系

目的 了解2016-2017年江苏省儿童青少年膳食及血清锌状况,探索其与营养相关心血管疾病代谢危险因素之间可能存在的关系。 方法 采用多阶段分层随机抽样的方法,2016-2017年从江苏省12个监测点抽取1 251名6~17岁儿童青少年进行体格测量(身高、体重、腰围)、血液生化检验(血清锌、空腹血糖、血脂),并采用连续3 d 24 h膳食回顾法对其进行膳食调查。统计学方法采用Pearson χ²检验、Kruskal-Wallis检验及线性回归分析。 结果 最终有1 122名6～17岁儿童青少年纳入本研究。其膳食锌摄入低于平均需要量(EAR)比例为39.39%,其中13~17岁年龄组、一般农村的被调查对象比例较高,分别为56.7%和54.8%;血清锌水平低于参考值的比例较低,为0.5%,但在不同性别、地区间存在差异,其中男性、大城市儿童青少年血清锌水平较高。线性回归分析结果表明,膳食锌与血清锌无线性关系;膳食锌与高密度脂蛋白呈正相关(β=0.072,95%CI: 0.034~0.111,P<0.001);血清锌与空腹血糖呈负相关(β=-0.506,95%CI:-0.575~-0.437,P<0.001)。 结论 江苏省儿童青少年存在膳食锌摄入不足风险的比例依然较高,充足的膳食锌摄入及较高的血清锌水平与儿童青少年良好的代谢状况有关。     

葡萄糖酸钙锌口服液联合布拉酵母菌散剂治疗轮状病毒性腹泻的效果

目的　观察葡萄糖酸钙锌口服液联合布拉酵母菌散剂对轮状病毒感染患儿症状控制及胃肠功能的影响,为临床治疗提供参考。方法　选取2017年8月—2019年10月三亚市人民医院收治的120例轮状病毒感染患儿作为研究对象,根据治疗方法分为常规组与联合组,各60例,其中常规组给予饮食指导、合理补液、抗病毒、预防或纠正电解质紊乱等常规治疗,联合组在常规组治疗基础上给予葡萄糖酸钙锌口服液联合布拉酵母菌散剂治疗。记录2组患儿治疗前后粪便标本中肠道菌群含量、血清中胃肠激素水平变化,并统计分析2组患儿临床治疗总有效率、症状改善时间（退热、止泻、止吐、大便性状正常）及住院时间。结果　治疗后,联合组总有效率为93.33%,高于常规组的80.00%（P＜0.05）,退热时间[（1.69±0.42）d]、止泻时间[（2.28±0.45）d]、止吐时间[（1.92±0.44）d]、大便性状正常时间[（2.30±0.45）d]、住院时间[（4.82±1.37）d均短于常规组,差异均有统计学意义（P均＜0.05）。治疗前,2组粪便标本中肠道菌群含量、血清中胃肠激素水平比较,差异均无统计学意义（P均＞0.05）。治疗后,2组粪便标本中双歧杆菌、乳酸杆菌含量较治疗前上升,肠杆菌含量及血清中胃泌素、胃动素、血管活性肠肽水平较治疗前下降,且联合组粪便标本中肠道菌群含量改善程度及胃肠激素水平下降幅度均高于常规组（P均＜0.05）。结论　葡萄糖酸钙锌口服液联合布拉酵母菌散剂可促进轮状病毒感染患儿临床症状的消失,改善胃肠激素水平,平衡肠道菌群,提高疗效。     

癌高发区非癌症患者血清铜、锌水平及影响因素

目的：探讨癌高发区非癌症患者的血清铜、血清锌水平及其影响因素。方法：用原子吸收法测定血清铜、血清锌值。并对膳食、健康状况和经济水平等因素进行问卷调查,采用单因素相关、逐步回归分析方法来研究癌高发区、对照区年龄在40～60岁长期居住的非癌症患者人群及其多种因素影响的关系。结果：癌高发区人群血清铜、血清铜锌比值明显高于对照区,血清锌值明显低于对照区。血清铜值与现病史和地区有关．男性血清铜高于女性,血清锌值随经济水平和肉摄入量的增加而增高。地区、现病史和性别对血清铜锌比值影响比其它因素更明显。结论：现病史和地区是影响血清铜锌比值的重要因素。血清铜锌比值可考虑作为评价癌高发区的因素之一。     

血清锌、钙、锰含量对矮小儿童身高、骨龄的影响

目的:探讨血清锌、钙、锰含量对儿童身高、骨龄的影响。方法:用高频等离子体发射光谱法测定30例矮小儿童血清锌、钙、锰含量,同30例正常健康儿童比较。并进行锌、钙、锰与身高、骨龄相关分析。结果:矮小儿童血清锌、钙、锰含量明显低于对照组。相关分析发现,血清锌、钙、锰与身高呈明显正相关(P<0.01),血清锌、锰与骨龄呈明显正相关(P<0.01),而血清钙与骨龄无相关性(P>0.05)。结论:血清锌、钙、锰与儿童身高增长,骨龄成熟密切相关。     

一磺酸基酞菁锌和四磺酸基酞菁锌的分离及在水溶液中的 …

目的 分离一磺酸基酞菁锌（ＺｎＰｃＳ）和四磺酸基酞菁锌（ＺｎＰｃＳ４）,并研究这两种配合物在水溶液中伏安行为。方法 采用高效液色谱分离纯化ＺｎＰｃＳ和ＺｎＰｃＳ４,应用三电极系统测定其在水溶液中伏安曲线,测定ＺｎＰｃＳ４在不同ｐＨ值下和红光照射下的循环伏安曲线。结果 在水溶液中（ｐＨ７．０）,这两种配合物均呈现二个不可逆的单电子还原电流峰,峰Ⅰ的峰电位（Ｅｐ）是＋０．１８Ｖ,峰Ⅱ的峰位置（Ｅｐ）－