[Effects of root extract of host plants on seed germination and haustorium formation of Cistanche deserticola]. / å¯„ä¸»æ¤ç‰©æ ¹æµ¸ææ¶²å¯¹è‚‰è‹è“‰ç§å­èŒå‘åŠå¸å™¨å½¢æˆçš„å½±å“.

We examined the effects of root extracts of Haloxylon ammodendron and Beta vulgaris in Chenopodiaceae extracted by water and ethanol on seed germination and haustorium formation of Cistanche deserticola by filter paper culture dish method. The results showed that only adding root extract had no effect on seed germination and haustorium formation of C. deserticola. The germination rate of C. deserticola seeds treated by adding 10 mg·kg-1 gibberellin to the root extracted by ethanol was not significantly different from that of the control (GA3), whereas those treated by adding gibberellin to the ethanol extract of two kinds of host root was increased by more than 10 times. The germination rate of C. deserticola seeds in the treatment with adding 1 mg·kg-1 fluridone (FL) to root extract was not significantly different from that in the control with only fluridone, while those in the treatment with B. vulgaris root water extraction was the highest (39.4%). Compared to the treatment of adding gibberellin to the root extract, the germination rate of C. deserticola seeds was only increased. When FL was added to the host root extract, the haustorium was formed on the germination tube, with the formation rate of the ethanol extraction group being the highest (16.2%). Seed germination rate of C. deserticola increased to 52.3% when GA3 and FL were added to the ethanol extract of H. ammodendron, but the formation rate of haustorium was not different from that of FL treatment. Only 6.7% of the seed formation haustorium in the control was significantly lower than that in FL treatment. There were differences in the position and shape of the haustorium of C. deserticola seeds under different treatments. The haustorium produced by adding the extract of the host root mostly appeared at the top of the bud tube, and many papillae raised into claws. The haustorium of FL treatment without adding the extract of the host root mostly appeared at the bottom or the top of the bud tube splitting. The results indicated that ethanol extraction and water extraction could extract the substances that could promote the formation of C. deserticola seeds haustorium from the host root, but did not affect seed germination. GA3 and FL could significantly improve the germination rate of C. deserticola seeds, but the formation of the haustorium was affected by some substances in the host root extract.

Effect of high-quality nursing intervention on the psychological disorder in patients with gastric cancer during perioperative period: A protocol of systematic review and meta-analysis.

BACKGROUND: This study will be proposed for investigating the effects of high-quality nursing intervention (HQNI) on the psychological disorder in patients with gastric cancer during perioperative period (GC-PPP). METHODS: A cumulative search from inception up to the March 31, 2020 will be performed in the following databases: Cochrane Library, MEDLINE, EMBASE, Web of Science, VIP database, and China National Knowledge Infrastructure. We will search all potential studies from those electronic databases regardless their language and publication status. We will only consider randomized controlled trials (RCTs) for inclusion, which explores the effect of HQNI on the psychological disorder in patients with GC-PPP. Study identification, information extraction, and study quality appraisal will be independently and respectively done by 2 researchers. Any different opinions between 2 researchers will be disentangled by a third researcher after discussion. Cochrane risk of bias tool will be used for study quality assessment, and RevMan 5.3 software will be utilized for statistical analysis. RESULTS: This study will provide a high-quality synthesis of psychological disorder outcomes to evaluate the effects and safety of HQNI for patients with GC-PPP. CONCLUSION: The findings of this study will provide reference and evidence to appraise whether HQNI is an effective on the psychological disorder in patients with GC-PPP STUDY REGISTRATION NUMBER:: INPLASY202040080.

[Preparation and physiochemical properties of curcumin-loaded lipid cubic liquid crystalline nanoparticles].

OBJECTIVE: To prepare curcumin-loaded lipid cubic liquid crystalline nanoparticles and evaluate its physiochemical properties. METHODS: The nanoparticles were prepared using hot and high-pressure homogenization. The prescription and preparation process were optimized by uniform design with drug loading and entrapment efficiency as indexes. RESULTS: The nanoparticles were spherical under transmission electron microscope (TEM) with average particle size of 176.1 nm, zeta potential of -25.19 mV, average drug loading of (1.5 +/- 0.2)% and entrapment efficiency of (95 +/- 1.8)%. The release equation: In (1-Q) = -0.0251t-0.0075. The cumulative release percentage was 60% at 36 h in vitro. CONCLUSION: The obtained curcumin-loaded lipid cubic liquid crystalline nanoparticles shows high entrapment efficiency and good sustain release property.

Bromido(meso-5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-deca-1,7-diene)copper(II) bromide dihydrate.

There are two formula units (Z' = 2) in the asymmmetric unit of the title compound, [CuBr(C(16)H(32)N(4))]Br·2H(2)O. The title crystal consists of two [Cu(C(16)H(32)N(4))](2+) cations, two Br(-) anions and four uncoordinated water mol-ecules. The metal atom is five-coordinate square pyramidal, with a long apical Cu-Br bond [2.9734 (11) and 2.9229 (11) Šin the two cations]. The two cations form a loosely associated dimer through the formation of hydrogen bonds between both N-H and O-H and Br(-). In addition, there is a network of N-H⋯Br, O-H⋯Br and N-H⋯O hydrogen bonds, leading to the formation of a chain structure.

Hierarchically structured cobalt oxide (Co3O4): the morphology control and its potential in sensors.

A polyol process was developed to synthesize Co3O4 with controllable superstructures. By tuning the reaction conditions, the prepared Co3O4 were readily regulated in its morphologies, which could vary from nanosphere to two-dimensional (2D) nanoplates and 3D hierarchical structures, and finally to microspheres. The growth kinetics of such a process was also studied. The synthesized Co3O4 exhibited good sensitivity, remarkable selectivity, and high stability as an alcohol sensor material.

[Application of transcutaneous electric nerve stimulation in operation of thyroid tumors].

OBJECTIVE: To study the effect of transcutaneous electric nerve stimulation for decreasing stress response and strengthening the anesthetic effect in the operation of thyroid tumors. METHODS: Sixty patients with thyroid tumors were randomly divided into an observation group and a control group, 30 cases in each group. All of them were given modified one-point cervical plexus nerve obstruction. The stimulation at bilateral Hegu (LI 4) and Quchi (LI 11) with HANS was added to the observation group from the beginning to end of operation. RESULTS: The blood pressure, heart rate and jerking reflection were decreased significantly as compared with the control group. The oxygen saturation and respiratory frequency did not change. CONCLUSION: Cardiovascular stress response can be decreased with HANS in the operation of thyroid tumors and anesthetic effect can be strengthened.