Objective To investigate the changes of vitamin D level and its relationship with bone alkaline phosphatase(BAP)and parathyroid hormone(PTH)in infants fed with breast milk and vitamin D supplementation for 0-8 months in People`s Hospital of Longhua New District in Shenzhen city.MethodsTotally 67 newborns in the Department of Obstetrics and Gynecology of People`s Hospital of Longhua New District were selected.These newborns were breastfed and began to supplement vitamin D 400 U/d in the 15th day after birth.The serum 25-(OH)D3 and BAP and PTH levels were measured in newborns and 4-/8-month-old infants,and the correlations of serum 25-(OH)D3 with BAP and PTH were analyzed by Pearson correlation analysis.ResultsCompared with the newborns,the serum 25-(OH)D3 [(78.47±36.41)nmol/L,(75.26±34.73)nmol/L],BAP[(231.43±78.81)μg/L,(205.97±71.64)μg/L],PTH[(31.76±11.54)pg/ml,and(32.94±13.82)pg/ml] levels of 4-and 8-month-old infants were significantly higher,and the difference were statistically significant(t4 months=7.823,12.568,11.852,t8 months=7.364,9.473,11.947;all P=0.000).There was a negative correlation between serum 25-(OH)D3 and BAP in newborns and 4-/8-monthold infants(r=-0.372,-0.463,-0.309;P=0.008,0.016,0.021),the serum BAP was positively correlated with PTH in infants aged 4 months and 8 months(r=0.487,0.338;P=0.005,0.032),and the serum 25-(OH)D3 was negatively correlated with PTH in infants aged 4 months(r=-0.297,P=0.041).Conclusions Infants at birth are prone to vitamin D deficiency in Shenzhen City.After 4 months of breastfeeding and vitamin D400U/d supplementation,the vitamin D levels in most infants become normal.25-(OH)D3 is correlated with BAP and PTH in different months.

Phytoestrogen is a kind of plant element which is similar to animal estrogen. Phytoestrogens can prevent progreator system cancer, cardiovascular disease and osteoporosis. Recently more and more researches are reported on the protection of phytoestrogens on central nerve system.

[ Objective ] To assess the quality of clinical randomised controlled trials (RCT) of traditional Chinese medicine (TCM) for acute myocardial infarction (AMI). [Methods] Eighty - three journals of TCM from the first issues of 1977 to the latest issues of 2002 were manually searched and reviewed under the following inclusion criteria: clinical trials of TCM for AMI with 'randomized controlled or randomised being mentioned. And a questionnaire was designed according to the criteria of RCT with the items of diagnostic standard, consistent of baseline, method of randomization, concealment in allocation, blind method, intention - to - treat analysis, statistic methods and conclusion. Percentages of each item were figured out to assess the quality. [Results] Two thousand five hundred and one trials were associated with heart diseases, among which 102 were associated with AMI and 42 accorded with the inclusion criteria. Calculation method of sample size, concealment in allocation and intention - to - treat analysis after drop - out were mentioned in none of the 42 articles, single - blind method adopted in 4 (9.52%) , diagnostic standard described in 40 (95.24%), baseline consistent illuminated in 27 (64.29%), method of randomization presented in 8 (19.05%) , statistic methods used mistakenly in 6 (14.28%) and statistic methods not described in 18 (42.86%). [Conclusion] There still exist some problems in the design of RCT of TCM for AMI: (1) mistaken use of randomization method; (2) less adoption of calculation method of sample size, concealment in allocation and intention - to - treat analysis after drop - out; (3) improper application of statistic methods; (4) lower rate of utilization for blind study.

Objective To investigate the influence of Batroxobin on plasma level of lysophosphatidic acid(LPA) in patients with acute cerebral infarction.Methods A total of 61 patients with acute cerebral infarction were selecued randomly to Batroxobin group ( n=31) or control group ( n=30). Aspirin and Danshen root were used in both groups as basic treatment. Batroxobin was used in Batroxobin group for one course of treatment. The plasma levels of LPA were measured before treatment and 5th, 7th, 10th, and 14th day after treatment in both acute cerebral infraction groups, and compared with health volunteers(normal group).Results The plasma levels of LPA in both Batroxobin group and control group were remarkably higher than that in normal group(all P0.05). In Batroxobin group the plasma levels of LPA were significantly lower than that in control group at 5th, 7th, 10th, 14th day after treatment(all P

Objective To construct a glioma targeting delivery system, PAMAM G5 were modified with the oligopeptide of blood brain barrier (BBB) targeting TGN and tumor targeting oligopeptide iRGD to solve the problem of non-specificity in distribution and difficulty in permeating BBB of ATO, in order to have better anti-glioma effect. Methods The physical and chemical properties of nanocarriers were investigated by 1H-NMR and transmission electron microscopy (TEM); The encapsulation efficiency and in vitro release were analyzed by inductively coupled plasma emission spectrum (ICP) and dialysis bag method; The effects of iRGD and TGN on cellular uptake of the carriers were analyzed by laser confocal and flow cytometry. The cytotoxicity of nanocarriers on brain microvascular endothelial cells (HBMEC) and glioma cells (U87), the inhibition effect on U87 cells of drug delivery systems after acrossing the BBB model in vitro were investigated by MTT method. Results The iRGD/TGN-PEG-PAMAM was synthesized successfully. The TEM results showed that iRGD/TGN-PEG-PAMAM was regular in shape and uniform in size. The particle size of iRGD/TGN-PEG-PAMAM/ATO was (24.87 ± 0.84) nm and the potential was (17.26 ± 1.64) mV. The synthesized carrier had less toxicity to HBMEC and U87 cells. The encapsulation efficiency of iRGD/TGN-PEG-PAMAM/ATO delivery system was (71.92 ± 1.17)%. The in vitro release showed that ATO had a slow release trend after entrapment, and it was more favorable for ATO release under acidic conditions. The cell uptake indicated that iRGD/TGN modification was more beneficial for U87 cell to uptake the drug delivery system. The in vitro inhibition effect on U87 cells after acrossing the BBB model showed iRGD/TGN-PEG-PAMAM/ATO had better inhibition effect on U87 cells. Conclusion The iRGD/TGN-PEG-PAMAM/ATO targeting drug delivery system has good inhibition effect on U87 cells effect after acrossing the BBB model in vitro, which provides a new strategy for the treatment of glioma.

Antibodies, Monoclonal ; therapeutic use ; Antibodies, Monoclonal, Humanized ; Antineoplastic Agents ; therapeutic use ; Breast Neoplasms ; drug therapy ; metabolism ; Carcinoma, Ductal, Breast ; drug therapy ; metabolism ; Drug Delivery Systems ; Female ; Humans ; Nitriles ; therapeutic use ; Receptor, ErbB-2 ; metabolism ; Survival Rate ; Tamoxifen ; therapeutic use ; Trastuzumab ; Triazoles ; therapeutic use

Objective To explore the diagnosis value of cystatin C(Cyst-C) level on the renal function early impairment of Henoch-Schonlein purpura(HSP).Methods The selected serum creatinine(SCr) normal 45 sufferers,with measured their urine routine analysis,and the same time did serum Cyst-C.Compared with 30 healthy children of serum Cyst-C.Results The levels of serum Cyst-C in HSP were definitely higher than those in healthy group,and the differences were together with its signifincance(P

There are some problems in the teaching of medical physics course,such as low learning initiative,deficient grasp of concept,and obstacles to realize the internalization and practical application of knowledge.The PAD (presentation-assimilation-discussion) class is applied in the course,in order to improve the students' learning state.PAD class is a teaching mode proposed from a psychological point,which advocates that teaching is the first before students start to learn and has an equal treatment on students' discussions and teachers' instruction,supporting independent learning.The teaching measures include:selecting course content to reach the balance between simplification and detailed interpretation;assigning open homework based on the course;dividing the class discussion into four steps;assessing students based on the performances of homework and final examinations.The research has shown that the PAD class facilitates improving the students' initiative of study and promoting the absorption and application of knowledge.

Objective To observe the expression of osteoprotegerin (OPG), receptor activator of nuclear factor κβ ligand(RANKL) and receptor activator of nuclear factor κβ (RANK) in bone tissue of rats with chronic fluorosis and to explore the relation between OPG/RANKL/RANK system and bone damage in chronic fluoride poisoning rat and the antagonism effects of Danlan Xianpeng capsule. Methods SD rats were randomly divided into six groups according to body weight (equal male and female in each group): fluorosis group, high dose drug group, medium dose drug group, low dose drug group, control group, borax group(positive control), 12 rats in each group. The control group drank tap water and the remaining 5 experimental groups consumed 50 mg/L fluoride water, and high, medium and low doses drug group took Danlan Xianpeng capsule at doses of 0.8,0.4,0.2 g/kg,borax group took borax at dose of 0.8 g/kg. OPG, RANKL, RANK protein in rat tibial metaphysis was detected by immunohistochemistry at the 6 month. Results Compared with the control group(173.79 ± 5.23, 174.17 ± 5.01,155.63 ± 7.11), the expressions of OPG, RANKL were increased and the expression of RANK was decreased in fluorosis group(156.83 ± 5.80, 157.74 ± 6.70, 173.92 ± 4.37), the difference was statistically significant (all P ＜ 0.05). Compared with the fluorosis group, the expression of OPG and RANKL were decreased and the expression of RANK was increased in high-dose drug group, middle-dose drug group(169.67±5.07, 168.08 ± 5.05,162.12 ± 4.24, 170.78 ± 5.01, 168.41 ± 7.19, 166.69 ± 5.78, all P ＜ 0.05). Compared with the borax group (167.27 ± 4.08, 167.85 ± 5.01, 166.14 ± 3.95), the expression of OPG and RANKL was increased in the low-dose drug group (163.40 ± 4.11, 159.49 ± 5.78), the expression of RANK was increased in the high-dose drug group (162.12 ± 4.24) and decreased in the low-dose drug group(171.54 ± 8.06), the difference was statistically significant (all P ＜ 0.05). Conclusions Chronic fluoride poisoning can cause increased bone turnover and enhance the activity of osteoelastic absorption by increasing RANKL. Danlan Xianpeng capsule can affect bone remodeling through the OPG/RANKL/RANK system, and antagonises bone damage caused by fluoride.

Objective To detect the expression of Cytokeratin 19 (CK19) mRNA in the peripheral blood of cervical carcinoma patients and evaluate its clinical significance.Methods The expression of CK19 mRNA was evaluated by fluorescent quantitative reverse transcription polymerase chain reaction ( FQRT-PCR ) in the peripheral blood of 138 patients with cervical carcinoma and 36 patients with benign gynecological tumors.In 138 patients,possible correlations between clinical pathological factors were analyzed.Results The positive expression rates of CK19 mRNA was 69.6％ in 138 cervical carcinomas in comparison with 13.9％ in benign gynecological tumors,and 57.9％ in patients with FIGO Stage Ⅰ A to Ⅱ A cervical carcinoma in comparison with 80.6％ in patients with FIGO Stage Ⅱb to Ⅳ cervical carcinoma.The expression of CK19 mRNA in patients with FIGO Stage Ⅰ A to Ⅱ A cervical carcinoma were significantly correlated with stage,differentiation and lymph vascular space involvement,but was not associated with prognostic factors including age,bully tumor size,pathological types,deep stromal invasion and lymph node metastasis.In multivariate survival analysis,lymph vascular space involvement was an independent risk factor of CK19mRNA expression in patients with cervical carcinoma.Conclusions Fluorescent quantitative RTPCR can be used to detect the expression of CK19 in the peripheral blood of cervical carcinoma patients,and it is a sensitive and specific technique.CK19 mRNA in peripheral blood may be a potential biomarker for detecting micrometastasis in cervical carcinoma.The results suggest a possible use of this approach for evaluating prognosis.