Objectiye To investigate the relationship between microsatellite instability (MSI) and mismatch repair gene (MMR) in lung carcinoma,and to analyze its action in lung carcinogenesis.Methods DNA was extracted from 50 cases of lung carcinoma and adjacent normal tissue.SSCP was used to detect MSI.Immunohistochemistry was performed to measure the expression of hMLH1 and hMSH2 protein in lung carcinoma.Results Of the 50 cases of lung carcinoma,14 with high MSI,21 with low MSI,and 15 with microsatellite stability,0 with MSI in normal group (P = 0.000).Lack of hMLH1 and hMLH2 staining was found in 37 of 50 (74 %) and 16 of 50 (32 %) lung carcinoma tissues with MSI,respectively; but both of hMLH1 and hMSH2 positive staining was found in the lung carcinoma tissues with MSS.Conclusion MSI appears to be associated with lung carcinogenesis,and inactivation of either hMLH1 or hMSH2 may be responsible for MSI,suggesting that MSI may become one of diagnosis indexes of lung carcinoma.

ObjectiveTo investigate the clinical efficacy of heat-sensitivepoint Yaoyangguan(GV3)moxibustion for sciatica and preliminarily explore the mechanism of its action.MethodOne hundred and twelve sciatica patients were randomly allocated to heat-sensitive point Yaoyangguan moxibustion (observation), non-heat-sensitive point Yaoyangguan suspended moxibustion (control) and medication groups. The observation group received heat-sensitive point Yaoyangguan moxibustion; the control group, non-heat-sensitive point Yaoyangguan suspended moxibustion; the medication group, oral administration of Yaobitong capsules. The clinical symptoms were scored, the Pain Rating Index (PRI), the Visual Analogue Scale (VAS) and the Present Pain Intensity (PPI) scores were counted and serum IL-8 content was measured in the three groups beforeand after 15 days of treatment.ResultAfter 15 days of treatment, all the three treatments had a certain therapeutic effect on sciatica. The therapeutic effect was bestin the observation group (P<0.05). The PRI, VAS and PPI scores and serum IL-8 contentdecreased in all the three groups compared with before treatment (P<0.05) and were lower in the observation group than in the control and medication groups (P<0.05). There was no statistically significant difference between the control and medication groups (P>0.05).ConclusionHeat-sensitive point Yaoyangguan moxibustion has a better therapeutic effect than non-heat-sensitive point Yaoyangguan suspended moxibustion and oral administration of Yaobitong capsules. This method is an ideal treatment for sciatica. The mechanism may be related to a posttreatment decrease in inflammatory factors in the diseased region.

Antiphospholipid Syndrome ; pathology ; physiopathology ; Child ; Female ; Follow-Up Studies ; Humans

Adult ; Humans ; Male ; Sleep Apnea Syndromes

Objective To investigate clinical significance of Homer expression in peripheral blood leukocytes of patients with ischemic stroke (IS).Methods It was a retrospecive study.The gene expression levels of Homer were measured by RT-qPCR.266 patientscollected in Zhongnan Hospital from September 2015 to June 2016were divided into 5 groups:large-artery atherosclerosis (LAA,100 cases),cardioembolism (CE,42 cases),small vessel occlusion (SVO,68 cases),stroke of other demonstrated etiology (SOE,23 cases) and stroke of undemonstrated etiology (SUE,33 cases).Meanwhile,age and sex matched 126 healthy controls were also collected.IS diagnostic criteria for cerebral infarctionwas in accordance with the guideline for acute ischemic stroke in China in 2010.The levels of Homers in subgroups were compared by Oneway ANOVA.The area under curve (AUC) and 95％ confidence interval (CI) were calculated using ROC analyses.The odds ratio (OR) and 95％ CI were calculated using the multivariate logistic regression analyses.Results The levels of Homer1 [2.01 ± 0.15] and Homer2 [1.81 ± 0.31] in LAA patients were significantly higher than othergroups [Homer1 CE:2.40 ± 0.34;SVO:2.38 ± 0.35;SOE:2.36 + 0.33;SUE:2.40 ± 0.30;control group:2.35 ± 0.28;Homer2 CE:2.09 ± 0.38;SVO:2.08 ± 0.30;SOE:2.09 ± 0.41;SUE:2.10 ± 0.34;control group:2.12 ± 0.31] (Homer1 CE:t =9.353,P＜0.001;SVO:t =9.258,P＜0.001;SOE:t =5.396,P＜0.001;SUE:t=9.644,P＜0.001;control group:t =11.882,P＜0.001;Homer2 CE:t =4.725,P＜0.001;SVO:t =5.545,P＜0.001;SOE:t=3.640,P ＜ 0.001;SUE:t =4.669,P ＜ 0.001);There was no significant difference in the expression of Homer1 (F =0.940,P =0.441) and Homer2 (F =0.336,P =0.854) between non-LAA groupsand healthy controls.There was no significant difference in the expression of Homer3among the groups (F =0.641,P =0.669).Multinomial logistic regression analyses revealed that,higher Homerl (adjusted OR =8.62,95％ CI:4.13-18.00,P＜0.001) and Homer2 (adjusted OR=2.42,95％ CI:1.75-3.36,P ＜ 0.001) levels showed significant associations with increased odds of having LAA stroke,compared with the controls.ROC curves showed that the AUC of the combination of Homer1 and Homer2 for differentiating LAA and controls was 0.896 (95％ CI:0.862-0.929,P ＜0.001) and the AUCfor differentiating LAAand non-LAA was 0.847 (95％ CI:0.800-0.894,P ＜ 0.001).Conclusion The expression of Homer1 and Homer2 in peripheral blood leukocytes could be used as novel biomarkers for LAA stroke.

Objective Present study aimed to observe the effects of Apoptin gene on killing retinoblastoma HXO-RB_(44) cells and illustrates its mechanisms. Methods Human retinoblastoma cells strain, HXO-RB_(44), was cultured and passaged in RPMI 1640 medium containing bovine serum. Apoptin gene was transfected into HXO-RB_(44) cells by liposome into HXO-RB_(44)/Apoptin, and pcDNA_3 was transfected in HXO-RB_(44)/peDNA_3 group. The expression of Apoptin mRNA was detected using Reverse Transcription Polymerase Chain Reaction (RT-PCR). The expression of protein of Apoptin and p53 were detected by SABC immunohistochemistry. The growth rate of HXO-RB_(44) cells was studied by constructing the growth curve and calculated as the formula: inhibitory rate = 1-cell number in experiment group/cell number in control group x 100%. Cellular apoptosis was determined by flow cytometry. Results The RT-PCR result showed the 450 kb specific band in UXO-RB_(44)/Apoptin group and absent amplification result in HXO-RB_(44) group and HXO-RB_(44)/pcDNA_3 group. The difference in SABC-positive cell number between HXO-RB_(44)/Apoptin group and control group was statistically significant (P ＜ 0. 05). The growth of HXO-RB_(44) cells was significantly inhibited in HXO-RB_(44)/Apoptin group compared with control group (P ＜ 0.05). Apoptosis cells increased significantly. The apoptosis rate was 38. 5% . Conclusion Apoptin gene could inhibit the growth of HXO-RB_(44) cells effectively. Up-regulation of expression of p53 gene might not be one of cell apoptosis mechanisms.

Objective To observe the effect of triptolide combined with gemcitabine on proliferation and apoptosis of pancreatic cancer cells ,and to analyze the relevant mechanisms .Methods After treated with TPL ,GEM or TPL combined with GEM in vitro , PANC-1 cells proliferation was accessed by MTT assay and the interaction between the two drugs was calculated .Apoptotic mor-phological changes and apoptosis rate of the cells were investigated by Hoechst 33258 staining and flow cytometry ,respectively .The expression of signal transduction and transcription factor 3(STAT3) ,cysteine aspartate specific proteases-3(caspase-3) protein were detected by Western blot analysis .Results TPL ,GEM or TPL combined with GEM could significantly inhibit the prolifera-tion of PANC-1 cells ,and the combination of the two drugs had a synergistic effect .The cells of the TPL group ,GEM group ,as well as the combined group showed typical apoptotic morphological changes .Compared with the TPL group and GEM group ,the number of apoptotic cells of the combined group increased significantly .Compared with the control group ,the cells apoptosis rate of the TPL group ,GEM group and combined group was significantly increased (P< 0 .05) ,and the apoptosis rate of the the combined group was significantly higher than that of the monotherapy group(P<0 .05) .TPL combined with GEM synergistically inhibited p-STAT3 protein expression and activated caspase-3 protein expression .Conclusion TPL combined with GEM can synergistically in-hibit proliferation and induce apoptosis of pancreatic cancer PANC-1 cells ,its mechanism is related to the inhibition of STAT 3 sig-naling pathway ,promotion the expression of caspase-3 protein .

A novel targeting drug carrier (FA-BO-PAMAM) based on the PAMAM G5 dendrimer modified with borneol (BO) and folic acid (FA) molecules on the periphery and doxorubicin (DOX) loaded in the interior was designed and prepared to achieve the purposes of enhancing the blood-brain barrier (BBB) transportation and improving the drug accumulation in the glioma cells. 1H NMR was used to confirm the synthesis of FA-BO-PAMAM; its morphology and mean size were analyzed by dynamic light scattering (DLS) and transmission electron microscope (TEM). Based on the HBMEC and C6 cells, cytotoxicity assay, transport across the BBB, cellular uptake and anti-tumor activity in vitro were investigated to evaluate the properties of nanocarriers in vitro. The results showed that the nanocarrier of FA-BO-PAMAM was successfully synthesized, which was spherical in morphology with the average size of (22.28 ± 0.42) nm, and zeta potential of (7.6 ± 0.89) mV. Cytotoxicity and transport across the BBB assay showed that BO-modified conjugates decreased the cytotoxicity of PAMAM against both HBMEC and C6 cells and exhibited higher BBB transportation ability than BO-unmodified conjugates; moreover, modification with FA increased the total uptake of DOX by C6 cells and enhanced the cytotoxicity of DOX-polymer against C6 cells. Therefore, FA-BO-PAMAM is a promising nanodrug delivery system in employing PAMAM as a drug carrier and treatment for brain glioma.
Biological Transport ; Blood-Brain Barrier ; Bornanes ; chemistry ; Cell Line, Tumor ; Dendrimers ; Doxorubicin ; pharmacology ; Drug Carriers ; chemistry ; Drug Delivery Systems ; Folic Acid ; chemistry ; Glioma ; Humans

OBJECTIVETo observe the clinical effectiveness of warm needling combined with element calcium on postmenopausal osteoporosis, and to explore its action mechanism.

METHODSEighty-five postmenopausal patients were randomly divided into an observation group (43 cases) and a control group (42 cases). Both the two groups were treated with oral administration of caltrate-D tablet, 600 mg per day, once a day before sleep for one year. Patients in the observation group were treated with warm needling at Dazhu (BL 11), Shenshu (BL 23), Xuan-zhong (GB 39), once a day; 30 days of treatment were taken as a course, and totally 4 courses were given with an interval of 60 days between courses. The bone mineral density (BMD) of the lumbar vertebra and hip joint, and the level of serum bone gla protein (S-BGP) and hydroxyproline/creatinine (Hyp/Cr) were observed before and after treatment in the two groups.

RESULTS(1)After treatment, the BMD in the observation group was significantly increased [lumbar vertebra (0. 811±0. 024) g/cm2 vs (0. 892±0.019) g/cm2, femoral neck (0. 512±0.014) g/cm2 vs (0. 554±0. 015) g/cm2, femoral trochanter (0. 716±0. 028) g/cm2 vs (0.769±0.026) g/cm2, Ward's trigonum (0. 590±0. 013) g/cm2 vs (0. 660±0. 017) g/cm2, all P<0. 05)]; the improvement in the observation group was more significant than that in the control group (all P<0. 05). (2)After treatment, the index of bone metabolism in the control group was increased, and the serum S-BGP, the Hyp/Cr in the control group were higher than those in the observation group (both P<0. 05).

CONCLUSIONThe treatment of warm needling combined with element calcium on postmenopausal osteoporosis is significant, which is likely to be achieved by reducing the bone metabolism of postmenopausal patients.

Acupuncture Therapy ; Bone Density ; Calcium ; metabolism ; Female ; Humans ; Middle Aged ; Osteoporosis, Postmenopausal ; metabolism ; physiopathology ; therapy

Objective To explore the risk factors for falls in patients with dementia. Methods Totally 118 patients diagnosed with dementia were divided into fails group and no fails group. The scores of mini-mental state examination (MMSE), clinical dementia rating (CDR) , activity of daily living scale (ADL), neuropsychiatric inventory (NPI) and unified Parkinson's disease rating scale (UPDRS) were compared between the two groups. The relationship between falls and their risk factors were analyzed by logistic regression model. Results The NPI and UPDRS scores were higher in falls group than in no falls group(t=2. 237,2. 213; both P<0.05). Multivariate analysis showed that dyskinesia and behavior disorders were significantly associated with an increased risk of falls (β=0.77 and 0.86, both P<0.05). Conclusions Dyskinesia and behavior disorders may be related to fails in patients with dementia and intervention measures of these risk factors are very essential.