Effects of long-term wearing of orthokeratology lens on corneal and visual quality of patients / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To investigate the effects of long-term orthokeratology lens wearing on corneal morphology, corneal biomechanics and objective visual quality.METHODS: A retrospective study was conducted to collect 33 myopic patients(60 eyes), including 19 males(35 eyes)and 14 females(25 eyes), mean age 11.80±1.51 years old, with an average equivalent spherical lens of -3.25±0.69D, who had been wearing orthokeratology lens for 2a from October 2019 to December 2020 in our hospital. Relevant data were collected before wearing and 2a after wearing. The radius of curvature(ARC and PRC), the thickness of the thinnest cornea(THP)and the index of comprehensive deviation analysis of corneal dilation(BADD)were measured by Pentacam anterior segment analysis system. Corvis ST biomechanical analyzer measured non-contact biomechanical corrected intraocular pressure(blOP), maximum deformation amplitude(DA), maximum reverse radius(HCR), ratio of deformation amplitude between apex and 1mm(DR), hardness parameters(SPA1), and corneal biomechanical parameters(CBI). The biomechanical index(TBI)of CT scan was obtained by the combined diagnosis system of Pentacam and Corvis ST. OQAS-II objective visual quality analysis system measured modulation transfer function cutoff frequency(MTF cutoff), Stryl ratio(SR), objective scattering coefficient(OSI)and OV value(OV100%, OV20% and OV9%). The above parameters were compared before and continuously wearing orthokeratoscope for 2a. RESULTS: After 2a of wearing orthokeratology, ARC increased, THP decreased, and BADD increased(<i>t</i>=-9.38, 2.85, -13.08; all <i>P</i><0.05), while there was no significant difference between PRC and before wearing(<i>t</i>=1.49, <i>P</i>>0.05). DA increased and HCR decreased compared with before wearing orthokeratology lens(<i>t</i>=-2.37, 2.28; all <i>P</i><0.05), but bIOP, DR, SPA1, CBI and TBI showed no difference(<i>t</i>=1.36, -1.87, 1.27, -0.95, -1.49; all <i>P</i>>0.05). SR was higher than before, OV20% and OV9% were lower than before(<i>t</i>=-5.31, 8.37, 2.34; all <i>P</i><0.05), MTF cutoff, OSI and OV100% had no difference compared with before(<i>t</i>=-1.57, -1.35, 1.11; all <i>P</i>>0.05).CONCLUSION: Long-term wearing of orthokeratology lens changed the morphology of the anterior corneal surface, but had no significant effect on the corneal biomechanics, and the objective visual quality of patients was improved during the day, but decreased at night.

Effect of Anti-Oxidative of Ethyl Pyruvate and Taurine on the Red Blood Cell Storage at 4 ℃ / 中国实验血液学杂志

OBJECTIVE@#To investigate the anti-oxidative effect of ethyl pyruvate (EP) and taurine (TAU) on the quality of red blood cells stored at 4±2 ℃, hemolysis, energy metabolism and lipid peroxidation of the red blood cells in the preservation solution were studied at different intervals.@*METHODS@#At 4±2 ℃, the deleukocyte red blood cells were stored in the citrate-phosphate-dextrosesaline-adenine-1 (CPDA-1) preservation (control group), preservation solution with EP (EP-AS), and TAU (TAU-AS) for long-term preservation. The enzyme-linked immunoassay and automatic blood cell analyzer were used to detect hemolysis and erythrocyte parameters. Adenine nucleoside triphosphate (ATP), glycerol 2,3-diphosphate (2,3-DPG) and malondialdehyde (MDA) kits were used to test the ATP, 2,3-DPG and MDA concentration.@*RESULTS@#During the preservation, the rate of red blood cell hemolysis in EP-AS and TAU-AS groups were significantly lower than that in CPDA-1 group (P<0.01). The MCV of EP-AS group was increased with the preservation time (r=0.71), while the MCV of the TAU-AS group was significantly lower than that in the other two groups (P<0.05). The concentration of ATP and MDA in EP-AS and TAU-AS groups were significantly higher than that in CPDA-1 group at the 14th day (P<0.01). The concentrations of 2,3-DPG in the EP-AS and TAU-AS groups were significantly higher than that in the CPDA-1 group from the 7th day (P<0.01).@*CONCLUSION@#EP and TAU can significantly reduce the red blood cell hemolysis rate, inhibit the lipid peroxidation level of red blood cells, and improve the energy metabolism of red blood cells during storage. The mechanism of EP and TAU may be related to their antioxidation and membrane protection effect, so as to improve the red blood cell quality and extend the preservation time.

Effect and Mechanism of Didangtang on NLRP3 Inflammasomes in Diabetic Cardiomyopathy Mice / 中国实验方剂学杂志

Objective:To investigate the effects of different doses of Didangtang on myocardial inflammatory lesions in diabetic mice. Method:Sixty C57BL/6J mice were randomly divided into normal group （<italic>n</italic>=10） and model group （<italic>n</italic>=50）. The diabetic mice in the model group were established by intraperitoneal injection of high-fat diet combined with streptozotocin （STZ）. After model reproducing， the mice were fed with high-fat diet. After 8 weeks， the cardiac function of the mice was detected by using an ultrasound imaging platform. If the cardiac function decreased， the diabetic cardiomyopathy mice were modeled successfully. The nonmodel mice were eliminated， and finally 40 model mice were modeled. The rats in the model group were randomly divided into model group， low， medium and high dose of Didangtang group（1.5，3，6 g·kg^-1） and simvastatin group（0.001 5 g·kg^-1） according to heart function， with 8 rats in each group. The cardiac function of mice was detected by ultrasound imaging platform， fiber bragg grating（FBG）， triglyceride（TG） and total cholesterol（TC） were detected by automatic biochemical analyzer， hematoxylin-eosin （HE） staining was used to observe the pathological changes of myocardium， and the levels of NOD-like receptor3（NLRP3）， thiomdoxin interaction protein（TXNIP）， cysteinyl aspartate specific proteinase-1（Caspase-1） and Interleukin-1<italic>β</italic>（IL-1<italic>β</italic>） in myocardial tissue， as well as the content of reactive oxygen species（ROS） were detected by Western blot. Result:Compared with the normal control group， the levels of FBG， TC and TG in the model group significantly increased （<italic>P</italic><0.01）； the values of EF and FS significantly decreased （<italic>P</italic><0.01）； the expression of ROS significantly increased （<italic>P</italic><0.05）， and the expressions of NLRP3， TXNIP， Caspase-1 and IL-1<italic>β</italic> in the myocardial tissue significantly increased （<italic>P</italic><0.05）. Compared with the model group， the levels of FBG， TC and TG in the middle and high dose groups of Didangtang and simvastatin groups significantly decreased （<italic>P</italic><0.05）； the EF and FS in each dose group and simvastatin group improved （<italic>P</italic><0.05）， and the change in the middle dose group was more obvious （<italic>P</italic><0.05）. HE staining showed that Didangtang could improve the pathological changes of myocardial tissue in mice， the ROS expression levels of mice in each dose group of Didangtang and simvastatin group significantly reduced， especially in the middle dose group， the expression levels of NLRP3， TXNIP， Caspase-1 and IL-1<italic>β</italic> in each dose group significantly decreased， and the effect of middle dose of Didangtang on reducing expressions of NLRP3， TXNIP and Caspase-1 in myocardial tissue was more obvious， the effect of high dose of Didangtang on reducing the expression of IL-1<italic>β</italic> in myocardial tissue was more obvious. Conclusion:Didangtang can improve myocardial inflammatory lesions in diabetic cardiomyopathy mice by inhibiting the activation of NLRP3 inflammasome.

The inhibitory effect of calcium dobesilate on cisplatin induced HK-2 cell apoptosis and its mechanism / 药学学报

We observed the effect of calcium dobesilate (CaD) on apoptosis induced by cisplatin in human proximal tubular epithelial cells (HK-2) and explored the possible mechanism. Based on HK-2 cells apoptosis model induced by cisplatin, CCK-8 method was used to detect the effect of CaD on the proliferation of HK-2. Apoptosis was detected by flow cytometry. Reactive oxygen species (ROS) assay was used to evaluate the level of oxidative stress. The mitochondrial membrane potential was measured by JC-1 method. The expression levels of p53, caspase-3, bcl-2 and bax in cisplatin-induced HK-2 were detected by Western blot. The expression of renal injury factor 1(KIM-1) and neutrophil gelatin-related apolipoprotein (NGAL), markers of acute kidney injury, were detected by ELISA. The results showed that CaD could reduce the oxidative stress level induced by cisplatin and inhibit apoptosis in renal tubular epithelial cells. Cisplatin can up-regulate the protein expressions of p53, caspase-3, bax, KIM-1 and NGAL, and reduce the expression of bcl-2. After using CaD, the protein levels of KIM-1, NGAL, p53, caspase-3 and bax were significantly reduced, while the levels of bcl-2 were increased. This study has shown that CaD can alleviate cisplatin-induced HK-2 injury and inhibit HK-2 apoptosis, which may be related to the regulation of bax/bcl-2/caspase-3 apoptosis signaling pathway.

Based on PI3K/Akt/mTOR Signaling Pathway to Explore Mechanism of Zhigancao Tang Against MIRI-induced Ventricular Tachycardia and Ventricular Fibrillation in Rats / 中国实验方剂学杂志

Objective:Through phosphatidylinositol 3-kinase（PI3K）/protein kinase B （Akt）/mammalian rapamycin target protein （mTOR） signaling pathway， explore the effect of Zhigancao Tang on myocardial ischemia-reperfusion injury（MIRI）The role and mechanism of arrhythmia（ventricular tachycardia and ventricular fibrillation）. Method:The 72 SD rats were randomly divided into sham operation group，model group， Zhigancao Tang low，medium and high dose group（11.43，22.86，45.72 g·kg-1），Wenxin granule group（2.43 g·kg-1），continuous drug intervention for 10 days. Two hours after the last administration，the MIRI model of rat was prepared by ligating the left anterior descending coronary artery，and the changes of electrocardiogram were recorded. After successful modeling，blood and heart tissue were collected to detect the content of creatine creatine（CK），lactate dehydrogenase（LDH）and aspartate aminotransferase（AST）in the serum, the enzyme-linked immunoassay（ELISA） method was used to detect cardiac troponin（CtnI）content, immunohistochemical detection of myocardial PI3K，Akt，mTOR expression. Western blot was used to detect the myocardial autophagy-related protein microtubule-associated protein 1 light chain 3（LC-3），autophagy markers Beclin1 and PI3K/Akt/mTOR signaling pathway related protein expression and phosphorylated p-PI3K，p-Akt，p-mTOR levels. Result:In model group， 100% of ventricular tachycardia and 91.67% of ventricular fibrillation occurred. Compared with sham operation group， the serum levels of CK，LDH，AST，and CtnI in the model group were significantly increased（P<0.01），PI3K，Akt，mTOR AOD values in myocardial tissue were significantly increased （P<0.01），the relative expression of the ratio of LC3-Ⅱ/LC3-Ⅰ and Beclin1 was significantly increased（P<0.01），p-PI3K/PI3K，p-Akt/Akt，and p-mTOR/mTOR were significantly reduced （P<0.01）. Compared with model group， the incidence of ventricular tachycardia and ventricular fibrillation in the high-dose Zhigancao Tang group was significantly reduced （P<0.01），and the duration was the shortest compared with other administration groups（P<0.01）， CK，LDH，AST level and CtnI content were significantly reduced（P<0.01）， the expression of PI3K，Akt and mTOR of Zhigancao Tang group was significantly decreased with increasing dose（P<0.01）， the expression of LC-3 and Beclin1 was accompanied by Zhigancao Tang increase of each dose group of soup had different degrees of decrease （P<0.01），while the expression ratio of PI3K/Akt/mTOR-related protein was significantly increased （P<0.05，P<0.01）. Conclusion:Pretreatment of Zhigancao Tang can reduce the abusually elevated cardiac enzymes CK, LDH, AST and CtnI, inhibit excessive autophagy of cells, and up-regulate the expression of PI3K, Akt and mTOR, indicating that the anti-MIRI arrhythmia effect of Zhigancao Tang may be related to the PI3K/Akt/mTOR signaling pathway.

Anticancer Effects of Constituents of Herbs Targeting Osteosarcoma / 中国结合医学杂志

Osteosarcoma is a rare primary malignancy of bone that is prone to early metastasis. Resection surgery and chemotherapeutic regimens are current standard treatments for osteosarcoma. However, the long-term survival rate of patients with osteosarcoma is low due to a high risk of metastasis. Hence, a new approach is urgently needed to improve the treatment of osteosarcoma. Compared with chemotherapy, natural active constituents isolated from herbs exhibit less adverse effects and better anti-tumor effects. This study aimed to summarize the anticancer effects of constituents of herbs on the progression and metastasis of osteosarcoma cells. It showed that many constituents of herbs inhibited osteosarcoma by targeting proliferation, matrix metalloproteinases, integrin and cadherin, and angiogenesis. The findings might be beneficial for the development of new drugs and treatment strategies.

Study on related factors of postoperative complications after endoscopic treatment for colon polyps in children / 中国实用儿科杂志

OBJECTIVE: To investigate the clinical characteristics and related factors of postoperative complications in children with colon polyps treated by endoscopy. METHODS: Clinical data of 379 hospitalized children who underwent electronic colonoscopic polypectomy in Children's Hospital Affiliated to Xi'an Jiaotong University from January 2014 to December 2016 were collected and retrospectively analyzed. RESULTS: Among 379 patients with polypectomy,36 patients(9.1%)had related complications,including fever in 6 patients(1.6%)and bleeding in 30 patients(7.9%);there was no intestinal perforation.Among the 30 cases of bleeding,26 cases(6.9%)were with minor bleeding,and 4 cases(1.1%)were with massive bleeding.The bleeding was successfully stopped by emergency endoscopy,and no additional surgery was performed. Univariate correlation analysis found that the duration of hematochezia,the location of the polyp,being with pedicle or not,the method of resection and postoperative braking were significantly correlated with postoperative complications(P<0.05). Multi-factor Logistic regression analysis found that:the longer the time of hematochezia,the higher the risk of postoperative complications,OR value being 1.08[95%CI:(1.03,2.14),P=0.003]. Patients with non-rectal polyps(including transverse colon,ascending colon and ileocecal)were 18.88 times more likely to have postoperative complications than patients with rectal polyps[95%CI:(2.23,159.74),P=0.007]. The risk of postoperative complications in patients with pedicle was 11.424 times higher than that in patients without pedicle[95%CI:(2.42,53.91),P=0.002]. CONCLUSION: Endoscopic resection of colon polyps in children is safe and effective,and postoperative bleeding is the most common complication. The longer period of hematochezia,the polyp being farther away from the anus,and being with pedicle increases the risk of postoperative complications. The use of titanium clips,strict postoperative braking and softening stool can reduce the occurrence of complications.

Intervention of auricular point sticking on perioperative psychological stress in patients with anorectal diseases / 中国针灸

OBJECTIVE@#To explore and quantify the intervention effect of auricular point sticking on perioperative psychological stress in patients with anorectal diseases.@*METHODS@#Eighty patients who underwent anorectal surgery were randomly divided into an observation group (40 cases) and a control group (40 cases). The routine preoperative guidance, preoperative visits, and informed of the postoperative condition were received in the control group. On the basis of the treatment in the control group, auricular point sticking was immediately applied at Shenmen (TF), Shen (CO), Wei (CO), Gan (CO), Pi (CO), Pizhixia (AT), E (AT), Nie (AT) and Zhen (AT) in the observation group.The patients were pressed by themselves, 3 to 5 min per point each time, 5 times a day, and the contralateral auricular points were replaced every 2 or 3 days until 1 week after surgery. The Hamilton anxiety scale (HAMA), Hamilton depression scale (HAMD), and Pittsburgh sleep quality index (PSQI) scores were compared between the two groups before and 7 days after surgery.@*RESULTS@#There was no significant difference in the total HAMA scores between after and before surgery in the observation group (>0.05). The total HAMA score in the control group was higher than that before surgery (0.05). The scores of somatic anxiety factor in the two groups were higher than those before surgery (0.05). The total score of PSQI in the two groups was lower than that before surgery (<0.05), and the total score of PSQI in the observation group was lower than that in the control group (<0.05).@*CONCLUSION@#Auricular point sticking can effectively improve some psychological stress problems during perioperative period in patients with anorectal diseases.

Expression and Significance of PTEN and Survivin in Acute Lymphoblastic Leukemia / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To explore expression and significance of phosphatase and tensin homolog deleted on chromosome ten (PTEN) and survivin in acute lymphoblastic leukemia (ALL).</p><p><b>METHODS</b>Peripheral blood samples were collected from 68 patients with ALL in our hospital including 48 newby diagnosed patients, 13 patients in remission, 7 patients in relapse, and 20 healthy volunteers (control). The expressions of PTEN and survivin mRNA and protein were detected by real time PCR, Western blot and respectively, and clinical pathological parameter was analyzed.</p><p><b>RESULTS</b>The expressions of PTEN mRNA and protein in newby diagnosed, remission and relapsed group were lower than that in control group (P<0.01). The expressions of PTEN mRNA and protein in newly diagnosed and relapsed groups were lower than that in remission group (P<0.01). The expressions of survivin mRNA and protein in newly diagnosed, remission and relapsed group were higher than that in control group (P < 0.01). The expressions of survivin mRNA and protein in newly diagno sed and relapsed groups were higher than that in remission group (P < 0.01). The expressions of PTEN and survivin mRNA did not relahed with the age, sex and white blood count in ALL patients, and also did not related with the morphological classification in newly diagnosed ALL (P>0.05), but related with immunological calssification in newly diagnosed ALL (P < 0.01). The expressions of PTEN and survivin were negatively correlated in ALL (P < 0.01).</p><p><b>CONCLUSION</b>PTEN and survivin play an important role in the occurrence, development and prognosis in ALL, and may be one of the potential targets for ALL treatment.</p>

The association of HHIP gene (rs1828591 and rs12504628) with Chinese Uygur patients with chronic ob?structive pulmonary disease / 实用医学杂志

Objective To explore the relationship between HHIP gene with COPD patients in Xinjiang Uygur population. Methods DNA was extracted from peripheral blood samples. HHIP gene (rs1828591 and rs12504628)polymorphic loci was detected by iMLDR technique in 233 cases and 292 controls in Uygur. Results There was no significant difference in the genotype,allele frequencies distribution of 2 haplotypes of HHIP (rs1828591 and rs12504628)between the disease group and the control group(P > 0.05). There was no differ? ence in 2 haplotypes of HHIP gene between the disease group and the control group(P > 0.05). Rs1828591 and rs12504628 gene showed significance with predicted FEV1%(P < 0.05). Conclusion Rs1828591 and rs12504628 gene are related with predicted FEV1%.

Correction of matrix effect in determination of heavy metal elements in iron dextran by icp-oes internal standard method / 药物评价研究

Objective To establish a method for the determination of 8 heavy metal elements of Pb,Cd,As,Hg,Co,V,Se,Mo in iron dextran by inductively coupled plasma optical emission spectrometry (ICP-OES).Method Through selection of detection wavelengths,optimization of instrument parameters,verification of matrix effect interference and investigation of internal standard for correction of matrix effect interference,the 8 heavy metal elements were analyzed by ICP-OES.Results The recovery rate of the detected elements were increased from 83％-90％ to 94％-100％,after correction of matrix effect interference by internal standard method.The accuracy of the method were good.The spiked recoveries of the detected elements were from 94.3％ to 101.5％.The precision of the method were good (RSD ＜ 3.5％,n =6).The linearities of the detected elements were good,and the correlation coefficients were all greater than 0.999.The detection limits were from 0.22 to 8.54 ng/mL.The quantization limits were from 0.68 to 25.73 ng/mL.Conclusion The established method was accurate,sensitivity,rapid and reliable,which can be applied to the determination of contents of 8 heavy metal elements in iron dextran.

Correction of matrix effect in determination of heavy metal elements in iron dextran by icp-oes internal standard method / 药物评价研究

Objective To establish a method for the determination of 8 heavy metal elements of Pb,Cd,As,Hg,Co,V,Se,Mo in iron dextran by inductively coupled plasma optical emission spectrometry (ICP-OES).Method Through selection of detection wavelengths,optimization of instrument parameters,verification of matrix effect interference and investigation of internal standard for correction of matrix effect interference,the 8 heavy metal elements were analyzed by ICP-OES.Results The recovery rate of the detected elements were increased from 83％-90％ to 94％-100％,after correction of matrix effect interference by internal standard method.The accuracy of the method were good.The spiked recoveries of the detected elements were from 94.3％ to 101.5％.The precision of the method were good (RSD ＜ 3.5％,n =6).The linearities of the detected elements were good,and the correlation coefficients were all greater than 0.999.The detection limits were from 0.22 to 8.54 ng/mL.The quantization limits were from 0.68 to 25.73 ng/mL.Conclusion The established method was accurate,sensitivity,rapid and reliable,which can be applied to the determination of contents of 8 heavy metal elements in iron dextran.

The association between the polymorphisms in the IL-4-590C/T gene and children asthma disease:a Meta analysis / 重庆医学

Objective To investigate the relationship between polymorphism of IL-4-590C/T and susceptibility of asthma.Methods The case-control articles reporting the relationship between IL-4-590C/T polymorphism and susceptibility of asthma were collected by China National Knowledge Infrastructure,WanFang data,VIP citation databases,Pubmed,Baidu Scholar,time limits are retrieved from the building a database to January 2016.The Meta-analysis software RevMan5.0 and Stata 12.0 was applied for heterogeneity test and pooled OR calculation.Results Seven case-control studies were selected,including 1 167 cases in the asthma group and 1 101 cases in the control group.Meta-analysis showed that both-590C/T polymorphisms genotypes were significantly associated with asthma,five kinds of senotypes OR(95％ CI) were CT+CC vs.TT[0.7 (0.57-0.85)],CC vs.CT+ TT [0.56(0.43-0.72)],CC vs.TT[0.46(0.33-0.64)],CC vs.CT[0.64(0.48-0.85)],C vs.T[0.45(0.27-0.77)].From subgroup analysis,genotype CC vs.CT+TT[0.50(0.35-0.72)],CC vs.TT[0.50(0.27-0.95)],CT vs.TT[0.61(0.41-0.92)],C vs.T[0.47 (0.23-0.95)] with risk correlated in Asian children asthma(P value is 0.01,0.04,0.02,0.03).Genotype CC vs.CT+TT[0.63(0.44-0.90)],CC vs.TT[0.49(0.25-0.96)],CC vs.CT[0.67(0.45-0.98)] also indicated a significant correlation between-590C/T polymorphisms of IL-4 and asthma in non-Asian children(P value is 0.01,0.04,0.04).Conclusion Current evidence suggests that the-590C/T polymorphism of IL-4 gene is associated with children asthma.

Discussion on Academic Thought of Professor ZHAO Zhiqiang Syndrone Differentiation and Treatment of Adenomatous Polyp of Colon / 浙江中医药大学学报

Objective]The paper summarizes academic thought of Professor ZHAO Zhiqiang syndrome differentiation and treatment of adenomatous polyp of colon. [Method]By learning from ZHAO Zhiqiang and studying the medical record of adenomatous polyp of colon,sum up professor ZHAO Zhiqiang′ s experiences from etiology and pathogenesis, differential treatment, administered medical herbs and prescription ,and with one case for detailed explanation. [Results] Professor ZHAO thinks that the pathogeny raletes to exopathy, diet, emotion, weakness of the spleen and stomach, physique, smoke poison,influence of other diseases,the key of pathogenesis is phlegm, blood stasis and toxin stagnation, accumulation of intestine, Qi is out of adjustment, the conduction loss of us, He believes that the syndrome diagnosis of the disease is different from others, the syndrome diagnosis should include disease syndrome elements, syndrome elements of disease location and morbid state, disease syndrome elements should need the help of the modern medical endoscope and pathology, and ill treatment to detoxify the anti-cancer variable as the core, supplemented with Ruanjian Sanjie,coordinating zang and fu, modification according to symptoms.[Conclusion] Professor ZHAO's treatment of adenomatous polyp of colon has rich experience and prominent features, it is worth clinical promotion.

Effect of Magnolol on Proliferation and Apoptosis of HL-60 Cells and Its Molecular Mechanism / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the effect of magnolol on proliferation and apoptosis of HL-60 cells and its mechanism.</p><p><b>METHODS</b>MTT assay was used to measure the proliferation of HL-60 cells after treatment with different concentration of magnolol (5, 10, 20, 40, 80 and 160 µg/ml). The morphological changes of HL-60 cells were examined by light microscopy, and DAPI staining was performed to observe the nuclear morphology of HL-60 cells. The early cell apoptosis was detected by flow cytometry with Annexin V-FITC/PI double-staining. RT-PCR was carried out to examine the mRNA expression of BAX and BCL-2. Western blot was performed to detect the protein expression of caspase family.</p><p><b>RESULTS</b>The magnolol inhibited HL-60 cell proliferation, and the inhibitory rate of cell proliferation increased significantly in a dose- and time- dependent manner (P < 0.05). HL-60 cells became small, even apoptotic bodies appeared after treatment with magnolol. In addition, nuclear condensation or fragmentation could be observed, which is the typical morphological features of apoptosis. When HL-60 cells were treated with 40 µg/ml of magnolol for 24 h, the ratio of early apoptotic cells reached to (11.7 ± 2.4) %, which was significant different from control (1.4 ± 1.1) % (P < 0.05). RT-PCR results showed that treatment of HL-60 cells with magnolol up-regulated the expression of BAX, whereas down-regulated the expression of BCL-2. Western blot results showed that the cleavages of caspase-3, -8 and -9 were significantly enhanced by magnolol.</p><p><b>CONCLUSION</b>The magnolol can significantly inhibit the proliferation of HL-60 cells and induce the apoptosis of HL-60 cells, which may occur through up-regulation of BAX, down-regulation of BCL-2 and the activation of caspases.</p>

Association between Q-1, T2 locus allele in ADAM33 gene and chronic obstructive pulmonary disease in Xinjiang Kazak, Han population / 实用医学杂志

Objective To explore the relationship of the ADAM33 gene Q-1,T2 single nucleotide polymorphism (SNP) and suffering from chronic obstructive pulmonary disease (COPD) in Xinjiang Kazakh and Han population. Methods Peripheral blood samples to extract DNA, and the single nucleotide polymorphisms of Q-1 and T2 in ADAM33 gene were detected by SNaPshot SNP genotyping. Results Case group compared with the control group, frequencies of Q-1 locus genotypes and alleles were significant differences in Kazak (P 0.05). There were no significant differences in T2 locus genotypes and clinical indicators of lung function FEV1% predicted and FEV1/FVC in patient group (P > 0.05). Conclusion The ADAM33 gene Q-1 locus may be related to the COPD susceptibility in Xinjiang Kazak, Han.

Role of Autophagy in Acute Lymphoblastic Leukemia -Review / 中国实验血液学杂志

Autophagy is an evolutionarily highly conservative lysosomal degradative process and closely associates with pathogenesis, process, treatment, drug resistance and relapse of acute lymphoblastic leukemia (ALL). Whether the autophagy displays resistance to chemotherapy or a tumor suppressor in ALL, it mainly depends on the context of autophagy in the cells. Understanding the different role of autophagy in different conditions for ALL, determing the autophagy signaling pathways and targeting combination with autophagy revulsants or inhibitors were significant for the therapy of ALL, particularly for the treatment of refractory/relapsed ALL patients. This review summarizes the role of autophagy in pathogenesis, developmant, drug resistance and treatment of ALL, providing some theoretical guidance of new drugs targeting autophagy for ALL therapy.

Association between ADAM33 gene polymorphism with chronic obstructive pulmonary disease incidence in Kazakh of Xinjiang / 天津医药

Objective To explore correlation of Xinjiang Kazakh population who suffered from COPD with polymor?phisms of F+1,S2,T1,ST+5 locus of ADAM33 gene. Methods Blood samples (n=193) from healthy controls (Control group, n=193) and COPD patients (Case group, n=197) were detected by SNP SNaP shot. Results Comparing case group with the control group, gene frequency and allele frequency of F+1 locus were of significant differences (P0.05). The gene frequencies and allele frequency of S2、T1 and ST+5 locus were not significantly differ?ent between case group and control group (P>0.05). F+1 and S2 locus were analyzed by haplotype analysis which showed that there was significant differences in Hap1 (CC) haplotype between case group and control group (P1 revealed that its haplotype may increase the risk of COPD . The distri?bution of Hap2 (TG) and Hap4 (CG) were not significantly different (P>0.05) between the 2 groups. T1 and ST+5 locus were analyzed by haplotype analysis which showed significant differences in haplotypes between case group and control group (P<0.05). Conclusion The occurrence of COPD may be related to the polymorphism of ADAM33 gene in F+1 locus in Xinjiang Kazakh.

Research progress in root rot diseases of Chinese herbal medicine and control strategy by antagonistic microorganisms / 中国中药杂志

In recent years, root rot diseases of Chinese herbal medicine have been posing grave threat to the development of the traditional Chinese medicine industry. This article presents a review on the occurring situation of the root rot disease, including the occurrence of the disease, the diversity of the pathogens, the regional difference in dominant pathogens,and the complexity of symptoms and a survey of the progress in bio-control of the disease using antagonistic microorganisms. The paper also discusses the existing problems and future prospects in the research.

Induction of apoptosis by osthole in HL-60 cells and the molecular mechanism research / 国际肿瘤学杂志

Objective To detect the effect of osthole on proliferation and apoptosis of HL-60 cells and its molecular mechanism.Methods HL-60 cells proliferation was measured through the CCK8 assay method.The cell morphological changes were observed by Hoechst33342 staining after 8 h of drug effect.Induction of apoptosis was determined by flow cytometry and fluorescent microscopy.Expressions of Bcl-2 and Bax mRNA were evaluated by RT-PCR,and the expressions of cleaved caspase-3,caspase-8,caspase-9,Fas and FasL were evaluated by using western bolt assay.Results Osthole could inhibit the proliferation of HL-60 cells,the maximum inhibiting rate was (90.7 ±4.5)％,F =138.46,P =0.000; the apoptosis rate was 33.6％,F =27.75,P =0.006.The changes of apoptosis of cells and nucleus were shown in cell morphological observation.Osthole affected the decrease of the mRNA levels of Bcl-2 and the increase of the Bax mRNA levels via a dosedependent manner(F =210.12,P =0.000).Western blotting demonstrated that osthole could lead to the increase of the expression levels of cleaved caspase-3,caspase-8,caspase-9,Fas and FasL in the HL-60 cell line via a time-dependent manner.Conclusion Data suggests that osthole inhibits proliferation and induces apoptosis of HL-60 cells through mitochondria-dependent pathway and death-receptor pathway.