Effect of aminophylline on the related indexes in perioperative period in thoracic surgery / 中国生化药物杂志

Objective To investigate the therapeutic effect of aminophylline on the treatment of patients with thoracic surgery perioperative. Methods 230 cases with thoracic surgery were selected as the research objects and divided into the research group and the control group randomly, and there was 15 cases in each group. the control group were ginven closed drainage of thoracic cavity during the surgery, continued to 3 days after surgery. The control group were given intravenous drip of ciprofloxacin lactate injection at 12 h after operation, and the treatment lasted for 7 days. At this basis, the research group were given aminophylline 0.5 mg/d by intravenous injection at the beginning of anesthesia induction and continued for 3 days. The levels of lung and respiratory inflammation related factor (White blood cells, PCT, hs-CRP, TNF-α, IL-6, IL-8 and IL-10), blood gas index in the two groups pre- and post–surgery were detected, and the complications and adverse drug reactions were observed. Results 24h after surgery, TNF alpha, IL-6, IL-8 were significantly lower than those in the control group (P<0.05), and IL-10 level was significantly higher than that in the control group (P<0.05). And PaO2 in the research groupwas significantly higher than that in the control group patients (P<0.05). After treatment, arterial carbon dioxide partial pressure (PaCO2) in the two groups were significantly lower than preoperative (P<0.05). The complication rate in the research group was significantly lower than that in the control group within ten days(P<0.05). There were no adverse reactions in both groups. Conclusion During the perioperative period in thoracic surgery, aminophylline intervention can effectively improve the prognosis. .

Detection of chromosome aneuploidies in spontaneous abortion villus samples by quantitative fluorescence PCR / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To assess the value of quantitative fluorescence polymerase chain reaction (QF-PCR) for the detection of chromosomal aneuploidies in chorionic villus samples from early abortion.</p><p><b>METHODS</b>One hundred seventy seven specimens were collected. Genomic DNA was extracted, and aneuploidies of 8 chromosomes (13, 15, 16, 18, 21, 22, X and Y) were detected by QF-PCR analysis.</p><p><b>RESULTS</b>The QF-PCR was successful in 176 (99.4%) of the cases. All detection was completed in 48 hours. Sixty three(35.8%) cases have shown abnormal signals, which included 3 cases of trisomy 13, 3 cases of trisomy 15, 14 cases of trisomy 16, 2 cases of trisomy 18, 7 cases of trisomy 22, 3 cases of trisomy 21, 13 cases of 45,X, 1 case of 47,XXX, 2 cases of 47,XXY, 2 cases of haploidy, 11 cases of triploidy, 1 case of trisomy 16 and trisomy 22, 1 case of trisomy 21 and trisomy 22. Trisomy 16 was the most common chromosome aneuploidy (22.22%), which was followed by 45,X (20.63%), triploidy (17.46%) and trisomy 22 (11.11%).</p><p><b>CONCLUSION</b>QF-PCR is a quick and easy method for detecting chromosomal aneuploidies in chorionic villi tissue. The results can provide important information for genetic counseling for spontaneous abortions.</p>

Impaired tumor angiogenesis and VEGF-induced pathway in endothelial CD146 knockout mice

CD146 is a newly identified endothelial biomarker that has been implicated in angiogenesis. Though in vitro angiogenic function of CD146 has been extensively reported, in vivo evidence is still lacking. To address this issue, we generated endothelial-specific CD146 knockout (CD146(EC-KO)) mice using the Tg(Tek-cre) system. Surprisingly, these mice did not exhibit any apparent morphological defects in the development of normal retinal vasculature. To evaluate the role of CD146 in pathological angiogenesis, a xenograft tumor model was used. We found that both tumor volume and vascular density were significantly lower in CD146(EC-KO) mice when compared to WT littermates. Additionally, the ability for sprouting, migration and tube formation in response to VEGF treatment was impaired in endothelial cells (ECs) of CD146(EC-KO) mice. Mechanistic studies further confirmed that VEGF-induced VEGFR-2 phosphorylation and AKT/p38 MAPKs/NF-κB activation were inhibited in these CD146-null ECs, which might present the underlying cause for the observed inhibition of tumor angiogenesis in CD146(EC-KO) mice. These results suggest that CD146 plays a redundant role in physiological angiogenic processes, but becomes essential during pathological angiogenesis as observed in tumorigenesis.

Therapeutic effect of nux vomica total alkali gel on adjuvants arthritis rats / 中国中药杂志

<p><b>OBJECTIVE</b>To observe the therapeutic effect and mechanism of nux vomica total alkali gel (NVTAG) on adjuvants arthritis (AA) rats.</p><p><b>METHOD</b>SD rats were randomly divided into nine groups: the normal group, the AA model group, NVTAG high, middle and low-dose (25, 12.5, 6.25 mg x kg(-1)) groups and the Votalin control (diclofenac diethylamine emulgel, 50 mg x kg(-1)) group. Except for the normal group, the remaining groups were transcutaneously administered with 0.1 mL freund's adjuvant complete (FCA) for inflammation in left rear feet and then evenly treated with medicine and packed with oilpapers. The foot volume method was adopted to determine foot swelling degree, with pain scoring and polyarthritis scoring. HE staining was used to observe arthro-pathologic injury. The content of prostaglandin E2 (PGE2), interleukin-1 (IL-1), IL-6, tumor necrosis factor (TNF-alpha) and vascular epidermal growth factor (VEGF) in synovium homogenates were measured by enzyme-linked immuno-absorbent assay (ELISA) respectively.</p><p><b>RESULT</b>Compared with the model group, NVTAG and control gel can obviously reduce the foot swelling degree, polyarthritis indicators and relieve arthro-pathologic injury in AA rats (17-21 d). The levels of IL-1, PGE2, IL-6, VEGF and TNF-alpha in synovial homogenates of AA rats were also reduced by NVTAG significantly.</p><p><b>CONCLUSION</b>NVTAG shows an antergic effect on AA progress in rats, which is closely related to inhibition of development of inflammatory mediator.</p>

Preparation and characterization of niosomes of Semen Strychni alkaloids extract / 中国中药杂志

<p><b>OBJECTIVE</b>To prepare a noisome formulation of Semen Strychni alkaloids extract with high encapsulation efficiency.</p><p><b>METHOD</b>S. Strychni alkaloids were encapsulated into niosomes by pH gradient loading method. The factors influencing on the encapsulation efficiency were investigated, and formulation and preparation process of niosomes were optimised and validated.</p><p><b>RESULT</b>When the drug to lipid weight ratio was under 1: 10, pH gradient in buffer solution of citric acid at 50 degrees C was more than 4.0, the niosomes (mean diameter 179.2 nm and Zeta potential -25.41 mV) were formed with encapsulation efficiency of over 86.9%.</p><p><b>CONCLUSION</b>The pH gradient loading method was reliable for preparing niosomes of Semen Strychni alkaloids extract.</p>

Effects of 12 weeks of aerobic exercise on brachial-ankle pulse wave velocity in older adults / 中华物理医学与康复杂志

Objective To determine the effects of a 12-week aerobic exercise program on brachial-ankle pulse wave velocity ( baPWV) in sedentary and under-exercised healthy older adults. Methods A total of 35 sedentary and unfit but healthy older adults with mean age of 74.7 years were randomly assigned to a progressively increased intensity aerobic exercise group ( n = 17) or a control group ( n = 18). The exercise group performed aerobic exercise 3 times each week for 12 weeks. The control group didn't participate in the exercise program. Heart rate,blood pressure and baPWV were evaluated at admission to the aerobic exercise program and at the end of the 12 weeks in both groups. Results The mean baPWV in the aerobic exercise group decreased from 15.88 m/s to 14.62 m/s after exercise, a significant reduction. Blood pressure in the exercise group showed a decrease which was not significant. No significant improvement was identified in the control group. Conclusions Only 12 weeks of aerobic exercise with progressively increased intensity can improve arterial elasticity in sedentary and unfit older adults.