Gene chip is a kind of technology that makes genetic fragments or oligonucleotide arrange orderly with high density in glass,silicon and other solid phase supports,and through various means of detection on the probe signal strength testing and analysis,eventually obtaining samples of gene expression in sequences and the information.Bccause of its high affinity,high accuracy and high advantages of information,gene chip can play an important role in research of clinical disease.This paper will review the application of gene chip in ophthalmology.

Objective:To compare the visual quality of patients with astigmatic multifocus intraocular lens (ART IOL) and astigmatic monofocus IOL (Toric IOL) after implantation.Methods:A prospective, non-randomized, controlled study was conducted to include 72 eyes of 72 cataract patients with corneal astigmatism (1.0-2.5 D) who were scheduled to receive phacoemulsification combined with IOL implantation in Chaoju Eye Hospital of Inner Mongolia from July 2017 to October 2018.Patients were divided into ART IOL group (37 eyes) and Toric IOL group (35 eyes) according to different IOLs implanted.All patients were followed up for 1 year after surgery.The main and secondary outcome indicators were compared.The main outcome indicators included distance (5 m), intermediate (80 cm), and near (40 cm) uncorrected visual acuity and best corrected visual acuity, defocus curve, contrast sensitivity, postoperative IOL rotation and residual astigmatism, while the secondary outcome indicators included visual subjective symptoms and spectacle independence rate.The above outcome indicators were compared between the two groups.This study followed the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Chaoju Eye Hospital of Inner Mongolia (No.CJYKLL202012).Written informed consent was obtained from each patient before surgery.Results:There was no statistically significant difference between the two groups in average uncorrected distance visual acuity and best corrected distance, intermediate and near visual acuity (all at P>0.05).The average intermediate and near visual acuity in the ART IOL group was significantly higher than that in the Toric IOL group, showing statistically significant differences (both at P<0.05).The defocus curve of the ART IOL group presented a double peak, which reached the peak at the far focus (0.0 D) and near focus (-2.5 D), respectively.The visual acuity range from 1.5 to-3.0 D was above 0.2 logarithm of the minimum angle of resolution (LogMAR), and the focus depth range was 4.5 D (1.5 to -3.0 D).The defocus curve of the Toric IOL group had only one crest, which was located at best corrected visual acuity (0.0 D).The visual acuity reached 0.2 LogMAR or above were from 1.0 to -1.0 D, and the focal depth range was 2.0 D (1.0 to -1.0 D).There was no statistically significant difference in contrast sensitivity at different spatial frequencies between the two groups in bright light, bright flashing light and dark light (all at P>0.05), while the contrast sensitivity of the ART IOL group at high dark flashing light frequency was lower than that of the Toric IOL group, showing statistically significant difference ( P<0.05).In the ART IOL group and the Toric IOL group, the average residual astigmatism after surgery was (-0.47±0.51)D and (-0.49±0.42)D, respectively, with no statistically significant difference ( t=0.408, P>0.05).There was no significant difference in postoperative IOL rotation between the two groups ( t=1.906, P>0.05).The total postoperative spectacle independence rate in the ART IOL group was 97.30%(36/37), which was higher than that in the Toric IOL group (17.14%, 6/35), showing statistically significant difference ( χ2=15.320, P<0.05). Conclusions:Both Toric IOL and ART IOL can better correct corneal astigmatism and improve patients' distance visual acuity, but ART IOL implantation can provide better distance, intermediate and near visual acuity, and higher spectacle independence rate.

Objective To understand the relationship between age and chronic complications in hospitalized aged patients with hypertension, to provide evidence for hypertension prevention and control. Methods To retrospectively analyze the clinical and laboratory data on 17,682 patients with essential hypertension during Jan 1st,1993-Dee 12th, 2008 in PLA general hospital. Results 1)Among all of the inrolled cases, those aged 60-64 account for 27.87%, 65-69 years group account for 26.55%, 70-74 years group accounted for 23.96%, 75-79 years group accounted for 14.14%, 80-84 years group accounted for 5.26%, 85-89 years group accounted for 1.69%, > 90 years accounted for 0.41%. 2) The prevalence rate of chronic complications in 60-69 years group were 31.3-31.2% for diabetes and,22.6-27.0% for cerebrovascular disease, 9.5-11.1% for myocardial infarction, 6.7-9.1% for heart failure, 5.8-6.0% for renal dysfanction 4.9-6.8% for atrial fibrillation, 0.1-0.3% for multiple organ dysfunction syndrome (MODS) in the elderly(P <0.05 ). 3) The first four complications of hypertension were diabetes(33.5%), cerebrovascular disease (31.9%), myocardial infarction(13.2%) and heart failure(12.3%) in 70-74 years group (P<0.05), cerebrovascular disease (42.8%), diabetes (32.8%), heart failure (16.5%) and myocardial infarction(15.9%) in 75-79 years group (P<0.05), cerebrovascular disease (45.4%), diabetes (35.0%), heart failure (21.1%) and myocardial infarction(15.9%) in 80-84 years group (P<0.05), cerebrovascular disease(42.5%), diabetes (35.8%), heart failure (23.1%) and renal dysfanction (17.7%) in 85-89 years group(P<0.05 ),and cerebrovascular disease (45. 2%), heart failure(31.5%), diabetes (26.0%) and renal dysfanction (20.5%) in patients more than 90 years group (P<0.05). Conclusions The prevalence rate and kinds of chronic complications in hospitalized aged patients with hypertension were changed with the increasing age, and the first kind of complication is cerebrovascular disease. It is of more importance to prevent the occurrence of renal dysfanction and heart failure in those hypertension patients who were more than 80 years old.

OBJECTIVEThis study aims to synthesize MTO1 (a kind of oligodeoxynucleotides) and N-isopropylacrylamide-modified polyethylenimines (PEN) complexes (MT01/PEN) as well as to investigate the effect of the complexes on the expression of osteoprotegerin (OPG) and the receptor activator of nuclear factor κB ligand (RANKL) in the human osteoblast-like cell line MG63.

METHODSMG63 cells were transfected by MT01/PEN complexes formed with three different mass ratios (1:2, 1:4, 1:6) of MT01 to PEN. MT01 and MT01-s were used as positive control. Enzyme-linked immunosorbent assay and real-time polymerase chain reaction were performed to estimate the amount of OPG and RANKL released into the culture media and in MG63 at 24, 48, 72 h.

RESULTSMG63 responded to the MT01/PEN complexes by significantly upregulating the OPG on the protein and mRNA levels (P < 0.05). The protein and mRNA levels of RANKL were lower in most of the groups with complexes, and the OPG/RANKL ratio were higher (P < 0.05). MG63 were affected by the MT01/PEN complexes with different mass ratios, particularly when the ratio was 1:6.

CONCLUSIONMT01 can enhance the promotion of ossification by establishing the delivery system with PEN.

Acrylamides ; Cell Line ; Enzyme-Linked Immunosorbent Assay ; Humans ; Oligodeoxyribonucleotides ; Osteoblasts ; Osteoprotegerin ; Polyethyleneimine ; RANK Ligand ; RNA, Messenger ; Real-Time Polymerase Chain Reaction

Objective To investigate the influence of age on recent prognosis of elderly inpatients with acute myocardial infarction (AMI).Methods A total of 2535 inpatients with AMI were divided into different age groups.The influences of age and coexistent diseases on prognosis in AMI patients were analyzed retrospectively.Results The hospital mortality and 30-day mortality were higher in patients aged ≥80 years compared with patients aged 65-79 years and patients aged 60-64 years(χ2 =46.378,P<0.01 ;χ2 = 44.534, P<0.01).In 60-64 years old patients with AMI, the prevalences of old myocardial infarction (OMI), renal insufficiency, respiratory insufficiency were higher and the prevalence of angina pectoris was lower in death group than in survival group (all P<0.05).In 65-79 years old patients with AMI, the prevalences of OMI, hypertension, diabetes,cerebrovascular disease, renal insufficiency, respiratory insufficiency were higher and the prevalence of angina pectoris was lower in death group than in survival group(P<0.05).In 80-94 years old patients with AMI, the prevalences of OMI, diabetes, cerebrovascular disease, renal insufficiency, respiratory insufficiency were higher and the prevalence of angina pectoris was lower in death group than in survival group(P<0.05).The prevalences of OMI, hypertension, diabetes, cerebrovascular disease,respiratory insufficiency were significantly increased in 80-94 years old death group versus 60-64 and 65-79 years old death group(all P<0.05).Conclusions The mortality rate of elderly patients with AMI is increased with age and atypical angina pectoris should be paid more attention in these patients.

In order to observe the effect of the immune and weight of chickens after use the attenuated vaccine with low dose of chicken infectious anemia virus (CIAV). In this study, the effects of low dose of CIAV on the weight of SPF chickens and NDV antibody production were observed by simulated experiments. The results showed that 10 EID50 and 5 EID50 CIAV per plume attenuated NDV vaccines were used to cause the weight loss of SPF chickens. Compared with the use of the non contaminated vaccine group, it has significant difference. And NDV antibody levels compared with the use of the non contaminated groups also decreased after use the vaccine with two doses of CIAV contaminated. It has significant difference. A certain proportion of CIAV antibody positive was detected at the beginning of the second week after use the NDV vaccine with two doses of CIAV contaminated. The detection of a high proportion of CIAV nucleic acid was detected in the first week after the use of a contaminated vaccine. The results of the study demonstrate the effects of CIAV pollution on the production and immune function of SPF chickens, and it is suggested that increasing the detection of viral nucleic acid can help save time and improve the detection rate in the detection of exogenous virus contamination by SPF chicken test method.
Animals ; Antibodies, Viral ; immunology ; Chicken anemia virus ; genetics ; immunology ; physiology ; Chickens ; Circoviridae Infections ; immunology ; veterinary ; virology ; Poultry Diseases ; immunology ; virology ; Specific Pathogen-Free Organisms ; Vaccines, Attenuated ; administration & dosage ; genetics ; immunology

Background Idiopathic orbital inflammatory pseudotumor (IOIP) is a common orbital disease, but its etiology is still unclear,so the effect of glucocorticoid treatment is unsatisfied.Objective This study was to investigate the effects of dexamethasone on orbital fibroblasts from IOIP patients and explore the action machanism.Methods Six pieces of IOIP tissues from 6 IOIP patients and 3 pieces of normal orbital connective tissues from lacrimal gland prolapse patients were obtained during the surgery in Beijing Tongren Hospital from November 2011 to January 2012.The orbital fibroblasts were cultured using explant culture method.The morphology of the cells were observed under the optical microscope,and biomarks of the cells were detected by immunochemistry.The growth and proliferation of the cells were assayed using WST-8.The expression of ICAM-1 in the cells in both the control group and the IOIP group was detected by immunochemistry.The fibroblasts were incubated in 96-well plates, and different concentrations of dexamethasone (0,1 × 10-3 , 1 × 10-4 , 1 × 10-5 and 1 × 10-6 mol/L) were respectively added into the medium for 24,48 and 72 hours,and then the proliferation of the cells was detected by WST-8 assay.The contents of ICAM-1 in different concentrations of dexamethasone groups were assayed by ELISA.Results The characteristics of the cells were similar between the control group and the IOIP group with the spindle shape and long protructions.The cells showed the positive response for vimentin and absent response for desmin, S-100, cytokeratin (CK).Compared with the control group,the growth speed of fibroblasts was fast in the IOIP group.The proliferative values of the cells (absorbancy) were gradually reduced with the increase of dexamethasone concentrations (F ion =36.27,P=0.00) and the lapse of acting time (Ftime =3.69 ,P=0.00).In cultured cells without dexamethasone for 24,48 and 72 hours,the mean expression levels of ICAM-1 were 0.298±0.008,0.312±0.003 and 0.319±0.011, showing a gradually increasing trend.However,the expression of ICAM-1 was gradually reduced with the increases of concentrations and the lapse of acting time of dexamethasone (Fconcentration =75.17,P=0.00;Ftime =3.11,P=0.00).Conclusions Occurrence and development of IOIP is probably associated with the over-expression of ICAM-1 in orbital fibroblasts.Dexamethasone plays anti-inflammation and treating effects on IOIP by down-regulating the expression of ICAM-1 and inhibiting the proliferation of orbital fibroblasts.

This study was purposed to compare the clinical efficacy and adverse reactions of low-dose decitabine combined with CAG regimen (aclarubicin, Ara-C, and G-CSF) and CAG regimen alone in intermediate to high-risk myelodysplastic syndromes (MDS), and evaluate the validity and efficacy of the former regimen as new treatment method of intermediate to high-risk myelodysplastic syndromes. A total of 12 patients with intermediate (IR) to high-risk (HR) MDS treated by low-dose decitabine combined with CAG regimen and 10 patients with IR to HR MDS treated by CAG regimen alone were evaluated after treatment of 1 cycle and at least after 2 cycles. The complete remission (CR) after 1 cycle, overall remission rate (ORR), progression free survival (PFS) and overall survival (OS) between them were analyzed. The results showed that 9 patients treated by low-dose decitabine combined with CAG regimen achieved complete remission after 1 cycle, 2 patients achieved partial remission, 1 patient did not show reaction. The complete remission rate was 75.0% and overall response rate was 91.7%. The median time of disease free survival was 9 months (0-27 months). The median overall survival time was 16 months (3-28 months). 4 patients suffered from pulmonary infection after treatment and then were all cured after treatment with anti-infective therapy. The 5 patients treated by CAG regimen alone achieved complete remission,3 patients achieved partial remission, 2 patients showed non-reaction. The complete remission rate was 50.0% and overall response rate was 80.0%. The median time of disease free survival was 6 months(0-18 months). The median overall survival time was 13 months(3-31 months), 4 patients suffered from pulmonary infection, 1 patient suffered from enteric infection and 1 patient suffered from Escherichia coli septicemia after treatment, all of them becomed better after active treatment. Two groups of patients all had no serious adverse reactions, All patients could tolerate, no severe complication-related death occurred in them. The statistical analysis indicated that the patients treated with low-dose decitabine combined with CAG regimen had longer progression free survival time than those treated with CAG regimen alone, and had longer overall survival time but did not have statistically significant. It is concluded that low-dose decitabine combined with CAG regimen has better clinical efficacy for patients with intermediate to high-risk MDS and did not increase risk for them. It is worth to apply in clinic.
Aclarubicin ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Azacitidine ; administration & dosage ; analogs & derivatives ; Cytarabine ; therapeutic use ; Disease-Free Survival ; Granulocyte Colony-Stimulating Factor ; therapeutic use ; Humans ; Myelodysplastic Syndromes ; drug therapy ; Remission Induction ; Treatment Outcome

Objective To establish the method of multiple loci VNTR(variable numbers tandem-repeats) analysis (MLVA) for genotyping Leptospira interrogans serogroup ieterohaemorrhagiae . Methods Seven VNTR loci were chosen for genotyping 117 strains of L. interrogans serogroup Icterohaemorrhagiae by PCR-electrophoresis-based VNTR analysis and the results were analyzed by software BioNumerics( Version 4.0). Results One hundred and seventeen isolates of L. interrogans serogroup Icterohaemorrhagiae detec-ted with 7 VNTR loci were classified into three clusters(A,B,C), twenty-eight types were found, type A 11.97% (14/117), type B 0.85% (1/1 17), type C 87.18% (102/117). Diversity Indexes for the loci varied between 0.0831 and 0.8005. Clinical strains isolated from the same geographic area and belonging to the same serogroup shared a common VNTR pattern. Conclusion MLVA could be used to classify and identify Leptospira interrogans preliminarily. With the improvement of technology, this rapid and easy method should greatly contribute to a better knowledge of the epidemiology of Leptospira.

Objective: Explore the feasibility of POL intervention based on life skills in young students at high-risk of AIDS, and to provide reference for POL intervention. Methods: Nine potential POLs were recruited from young students at high risk of AIDS in Xi’an, and received life-skill-based interventions from May to October in 2017. A unified approach was adopted before the intervention. The effect of intervention was evaluated at 1 month and 3 months after the intervention. Results: The difference in POLs peer status and psychosocial ability scores was not significant after the intervention. The scores of persistence efficacy dimension of condom use efficacy before, 1-month and 3-month after the intervention were (10.56±1.88)(11.11±2.21)(12.89±2.09)(F=6.84, P<0.05) respectively. No significant changes were found in AIDS-related knowledge and behavior before and after the intervention. POL has increased from 108 students before intervention to 216 publicity coverage after three months intervention, however, the difference was not statistically significant. Feasibility analysis of the POL intervention showed that 8 of the POLs considered to be "very useful". Conclusion Life skill-based POL intervention for young students at high-risk of AIDS has a wide coverage and reasonable acceptance, as well as condom use adherence. The long-term effectiveness still needs to be verified.