Referring to the rules for agricultural seed testing (GB /T 3543-1995) issued by China, the test of sampling, seed purity, weight per 1 000 seeds, seed moisture, seed viability and germination rate had been studied for screening seed quality test methods of Pesudostellaria heterophylla. The seed quality from different collection areas was measured. The results showed that at least 6.5 g seeds should be sampled and passed through 10-mesh sieve for purity analysis. The weight of 1 000 seeds was determined by using the 500-seed method. The phenotypic observation and size measurement were used for authenticity testing. The seed moisture was determined under the higher temperature (130 ± 2) degrees C for 5 hours. The seeds were dipped into 0.2% TTC sustaining 1 hour at 40 degrees C, then the viability could be determined. The break dormancy seeds were cultured on sand at 10 degrees C. K cluster analysis was applied for the data analysis, the seed quality from different collection areas grading of P. Heterophylla was described as three grades. The seed quality of each grade should reach following requirements: for first grade seeds, germination rate ≥ 86%, 1 000-grain weight ≥ 2.59 g, purity ≥ 87%, moisture ≤ 13.1%; for second grade seeds, germination rate ≥ 70%, 1 000-grain weight ≥ 2.40 g, purity ≥ 77%, moisture ≤ 14.3%; for third grade seeds, germination rate ≥ 41%, 1 000-grain weight ≥ 2.29 g, purity ≥ 76%, moisture ≤ 15.8%. The seed testing methods for quality items of P. heterophylla had been initially established, as well as the primary P. heterophylla seed quality classification standard.
Caryophyllaceae ; chemistry ; growth & development ; Germination ; Quality Control ; Seeds ; chemistry ; growth & development ; Water ; analysis

Boronic Acids ; therapeutic use ; Bortezomib ; Humans ; Male ; Middle Aged ; POEMS Syndrome ; therapy ; Peripheral Blood Stem Cell Transplantation ; Pyrazines ; therapeutic use ; Transplantation, Autologous

One pair of degenerate primer was designed according to conserved motifs of the psaB (A2 subunit of photosystem I) of Chlamydomonas reinhardtii, Chlamydomonas moewusii, Chlorella vulgaris and Mesostigma viride, and a total RNA of Dunaliella salina (D. salina) was extracted with TRIzol reagent. A cDNA fragment, about 1.8kb in length, from green algal D. salina was obtained through RT-PCR method. The resulting PCR product was cloned into T-vector and screened to determine its sequence. Homologous analysis of the deduced amino acid sequence was performed by BLAST and subsequeqtly compared with GenBank data. The obtained cDNA sequence was 1815 bp long, which encodes 605 amino acids (GenBank accession number: AY820754). The sequence shared high homologue with the following psaB: Chlamydomonas reinhardtii 92%, Chlamydomonas moewusii 91%, Chlorella vulgaris 86%, Mesostigma viride 85%, Physcomitrella patens subsp. Patens 85% and Nephroselmis olivacea 84%. It can be concluded that the cloned sequence is psaB cDNA fragment from D. salina.
Algal Proteins ; genetics ; Amino Acid Sequence ; Animals ; Chlamydomonas reinhardtii ; genetics ; Chlorophyta ; genetics ; metabolism ; Cloning, Molecular ; DNA, Complementary ; genetics ; Molecular Sequence Data ; Photosystem I Protein Complex ; genetics ; Sequence Analysis, Protein ; Sequence Homology, Amino Acid

OBJECTIVETo provide guidance for selection and breeding of Pesudostellaria heterophylla, agronomic traits of 3 mainly cultivated form of P. heterophylla were observed and compared in Guizhou shibing.

METHODThirteen agronomic traits of P. heterophylla from 3 cultivation form were measured and the traits were analyzed using multiple comparison, correlation analysis, multiple stepwise regression analysis and path analysis.

RESULTThe results showed that agronomic traits were different in 3 cultivation form, significant(P <0.05)or very significant correlated (P <0.01)among multiple agronomic traits, the width and the number of root, the first branch number, cleistogamous flowers, length and width of leaves, and the aboveground biomass were the main factors that affected the underground biomass, and the number of root, the aboveground biomass had a directly positive effect on the underground biomass. Meanwhile, whole length, length and width of leaves, cleistogamous flowers etc. had direct or indirect effect on the underground biomass.

CONCLUSIONAboveground biomass would be as the best indirect selection traits on breeding high yield of P. heterophylla, the first branch number, width of leaves and cleistogamous flowers world be as a better auxiliary index on breeding high variety of P. heterophylla.

Agriculture ; economics ; Animals ; China ; Hemiptera ; anatomy & histology ; growth & development ; Regression Analysis

OBJECTIVETo provide new germplasm materials for breeding new varieties of Pseudostellaria heterophylla.

METHODThe method of single plant selection was adopted, with the comparative experiments being carried out under the same conditions in Shibing county. The 8 plants of Shibing SB-4 were compared respectively with factor analysis for 27 phenotypic traits and 8 yield traits, and single factor variance analysis for the contents of polysaccharides.

RESULTUsing factor analysis, 27 phenotypic traits were classified into 7 principal divisors and 8 yield traits were simplified into 3 principal divisors. The 4 strains of P. heterophylla, ZT-01, ZT-02, ZT-06 and ZT-07, performed better than others in the phenotypic traits, and ZT-01, ZT-02, ZT-03 and ZT-07 in the yield traits. The contents of polysaccharides of ZT-01, ZT-02, ZT-05 and ZT-08 showed significantly higher value.

CONCLUSIONThere is significant difference among the 8 strains of P. heterophylla in phenotypic traits, yield traits and quality traits, making it possible to select certain strains for different purposes. ZT-01 and ZT-02 can be breaded further. ZT-06 and ZT-07 were used as ornamental cultivars for its great phenotypic traits. ZT-03 with good resistance and high yield was taken as resistant variety, and ZT-05 would face next selection on the basis of its high content of polysaccharide.

Breeding ; Caryophyllaceae ; chemistry ; growth & development ; China ; Phenotype ; Polysaccharides ; analysis

OBJECTIVETo study the changes of serum interleukin-2 (IL-2), interleukin-8 (IL-8) and immunoglobulin (IgG, IgA, IgM) in patients with esophageal cancer, and to probe the relationship between the levels of IL-2, IL-8, IgG, IgA and IgM and the progress of cancer.

METHODSThe serum levels of IL-2 and IL-8 were detected by enzyme-linked immunosorbent assay for 72 case of primary esophageal cancer, 68 advanced esophageal cancer and 120 healthy controls, and the level of immunoglobulin (IgG, IgA, IgM) in patients with esophageal cancer was dynamically observed.

RESULTSThe IL-2 level in patients with early esophageal cancer [(1.69 +/- 0.53) ng/ml] or late esophageal cancer [(1.11 +/- 0.60) ng/ml] was lower than the control group [(2.78 +/- 0.51) ng/ml] (P < 0.01), the late esophageal cancer group was lower than early esophageal cancer group (P < 0.05). The level of IL-8 in patients with early esophageal cancer [(85.48 +/- 6.14) ng/L] or late esophageal cancer [(121.41 +/- 6.22) ng/L] was much higher than the control group [(54.48 +/- 12.20) ng/L] (P < 0.01), the late esophageal cancer group was much higher than early esophageal cancer group (P < 0.01); There was correlation between the levels of IL-2 and IL-8 and the worsen-extent of the tumour in patients with early esophageal cancer or late esophageal cancer. But the level of IgG [(12.23 +/- 2.50) g/L], IgM [(1.60 +/- 0.80) g/L] in the patients with esophageal cancer compared with the level of IgG [(11.65 +/- 3.70) g/L], IgM [(1.46 +/- 0.71) g/L] in the health control group have no significant difference (P > 0.05), the level of IgA [(3.50 +/- 1.10) g/L] in patients with esophageal cancer Compared with the control group [(1.88 +/- 1.08) g/L] has significant difference (P < 0.01), and along with the worsen-extent of the tumor in patients the level of IgA has the increased tendency.

CONCLUSIONThe IL-8 might accelerate the pathogenesis of esophageal cancer, and the IL-2 might restrain. The positive correlation between the level of IgA and the patients with esophageal cancer is observed in this study; the immune maladjustment of IL-2, IL-8 and IgA might be correlative to esophageal cancer, and the IL-2, IL-8 and IgA levels might be an available index for the severity of esophageal cancer, Which may be of some help for clinic practitioners to judge the progress, curative effect and prognosis of the cancer.

Adult ; Aged ; Case-Control Studies ; Esophageal Neoplasms ; blood ; pathology ; Female ; Humans ; Immunoglobulin A ; blood ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; Interleukin-2 ; blood ; Interleukin-8 ; blood ; Male ; Middle Aged ; Neoplasm Staging

This paper describes the use of piezo-driven micropipette for intracytoplasmic sperm injection of mice eggs. The head of fresh spermatozoa from KM (Kunming) fertile mice was individually injected into mature oocytes of hybrid mice B6D2F1. Approximately eighty three percent of sperm-injected oocytes survived, and 84.0% of them fertilized normally (extrusion of the second polar body and formation of male and female pronuclei). The eggs fertilized by sperm injection could develop in vitro to 2-cell (98% vs 94.7%), 4-cell (89.5% vs 92.1%) stages, no significantly (P > 0.05) different from embryos fertilized in vivo but there were significantly (P < 0.01) few morulae (63.8% vs 84.2%) and blastocysts (25.7% vs 68.4%) developed in vitro after further culture in vitro in the group of ICSI. When 120 embryos at the pronuclear stage were transferred to seven pseudopregnant KM female, 23.3% of the embryos (0 - 50%, depending on the host) reached the full term. Except for three that were cannibalized soon after birth, all of the young (25 pups) developed into normal and fertile adult. Here we report the first birth of mouse offspring following ICSI in China. These studies may increase understanding of the fertilization process and of how ICSI works.
Animals ; Embryo Transfer ; Female ; Fertilization in Vitro ; methods ; Male ; Mice ; Oocytes ; physiology ; Pregnancy ; Sperm Injections, Intracytoplasmic ; methods

OBJECTIVETo study the role of transplantation of the vascularized pedicle iliac crest for the repair of bone and soft tissue defect of lower extremity.

METHODSThe vascularized pedicle iliac crest was designed for the repair of bone and soft tissue defect of lower extremity according to anatomic feature of leg and foot. Skin graft was used for coverage of the iliac flap.

RESULTSSkin survival could demonstrate the survival of the vascularized pedicle iliac crest indirectly one week postoperatively. Skin survived completely in 4 cases and partly in 3 cases. Callus was seen at the transplantation site one month postoperatively, and K-wires were removed 4 months later in the cases of metatarsal defect. The external fixators were removed in the cases of tibia defect 6 to 8 months postoperatively. The functions of lower extremities were restored in 2 to 4 months. The bone and soft tissue defects were repaired, and ultimate function and cosmetic effects were satisfied after the mean follow up of 10 months (ranged from 6 to 15 months).

CONCLUSIONTransplantation of the vascularized pedicle iliac crest is an ideal method for the repair of bone and soft tissue defect of lower extremity. The operation can be performed in one stage. The functions and cosmetic effects are better than the traditional methods.

Adult ; Bone Transplantation ; methods ; Female ; Follow-Up Studies ; Humans ; Ilium ; blood supply ; transplantation ; Leg Injuries ; surgery ; Male ; Middle Aged ; Skin Transplantation ; methods ; Soft Tissue Injuries ; surgery ; Transplantation, Autologous

The study was aimed to explore the mechanism of SYK and CBL family of ubiquitin ligases in Bufalin-induced HL-60 cells apoptosis. Cell viability was tested by trypan blue staining and apoptosis was detected by using flow cytometry. The expressions of CBL and CBL-b and the phosphorylation of SYK were detected by using immunoprecipitation and Western blot. The results showed that Bufalin inhibited HL-60 cell proliferation in time- and dose-dependent manners. IC(50) of suppressing cell viability at 24, 48 and 72 hours were about 26.3, 7.8 and 2.0 nmol/L respectively. The high dose of bufalin already induced apoptosis of HL-60 cells at 8 hours. SYK was quickly phosphorylated, and the expressions of CBL and CBL-b were down-regulated after treatment with Bufalin. It is concluded that SYK activation and CBL protein down-regulation may be involved in Bufalin-induced HL-60 cell apoptosis.
Apoptosis ; drug effects ; Bufanolides ; pharmacology ; Cell Proliferation ; drug effects ; Down-Regulation ; Gene Expression Regulation, Leukemic ; HL-60 Cells ; Humans ; Intracellular Signaling Peptides and Proteins ; metabolism ; Protein-Tyrosine Kinases ; metabolism ; Proto-Oncogene Proteins c-cbl ; metabolism ; Signal Transduction ; Syk Kinase

Amantadine(AMD)residue can accumulate in organisms through the food chain and cause serious harm to human body.AMD can specifically bind to AMD specific aptamer and cause its conformation to change from a random single strand to a stem-loop structure.To avoid the influence of excess nucleotides on binding of aptamer to AMD,the truncation of the AMD original aptamer J was optimized by retaining an appropriate stem-loop structure,and a new type of truncation aptamers was developed in this work.By comparing the truncated aptamer with the original aptamer,it was found that the truncated aptamer J-7 had better affinity and specificity with AMD.The detection limit of AMD was 0.11 ng/mL by using J-7 as specific recognition element and molybdenum disulfide nanosheet(MoS2Ns)as signal amplification element.The developed method base on truncated aptamer J-7 was used for detection of AMD in milk,yogurt and SD rat serum samples for the first time with recoveries of 86.6%-108.2%.This study provided a reference for truncating other long sequence aptamers and provided a more sensitive detection method for monitoring AMD residues in food.