BACKGROUND: Parameters of platelet can reflect functions of coagulation. Granule membrane protein-140 (GMP-140), which is also called P-Selectin, in α-granules of platelets can reflect activities of platelet. Dysfunction of blood sugar and blood lipid in diabetic patients can result in complications such as thrombotic diseases.OBJECTIVE: To analyze the variation regulation of the platelet parameters and GMP-140 in patients with type 2 diabetes mellitus.DESIGN: A case-control study.SETTING:Department of Clinical Laboratory and Department of Endocrinology, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology.PARTICIPANTS: From March to April 2005, forty-five patients with type 2 diabetes mellitus, who were treated at the Department of Endocrinology,Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, were enrolled as diabetic group, and 45 healthy people, who were checked with health examination at the same period,were selected as control group. They all joined the experiment voluntarily. METHODS: Changes of quantity of blood platelet, mean platelet volume (MPV), platelet distribution width (PDW) and platelett-large cell ratio (PLCR) were analyzed with blood cell counter. GMP-140 was measured by enzyme-linked immunosorbent assay (ELISA), meanwhile, compared with those of the healthy people.MAIN OUTCOME MEASURES: Contents of the parameters of platelets and GMP-140 of subjects in the two group s.RESULTS: A total of 90 cases without drop out, 45 cases in the diabetic group and control group, respectively, were involved in the result analysis.①Comparison of the content of GMP-140 in the two groups: It was significantly higher in the diabetic group than that in the control group [(28.8±10.3) ,(9.1±5.6)μg/L(t=2.37,P ＜ 0.01 )]. ②Comparison of parameters of blood platelet of subjects of the two groups: The MPV, PDW and P-LCR in patients of the diabetic group were markedly higher than those in the control group (t=2.02, 2.02, 2.02, P ＜ 0.01 ), while the blood platelets (PLT)was dramatically lower than that in the control group (t=2.15, P ＜ 0.01 ).CONCLUSION: The MPV, PDW, P-LCR and the content of GMP-140 of patients with type 2 diabetes mellitus significantly increase, while the PLT decreases, which indicate that platelet activity enhances and the consumption of platelet increases in patients with type 2 diabetes mellitus.

BACKGROUND: The parameters of blood platelet(B-PLT) can reflect its thrombo-function, but the variation of blood-platelet parameters in patients with thrombotic disease is controversial and not unanimous.OBJECTIVE: To observe the changing rule of the B-PLT parameters in patients with cerebral infarction(CI), and investigate whether blood cell counter can be used in the evaluation of the variation of B-PLT parameters in CI patients.DESIGN: A case-control and experimental study based on patients and healthy people.SETTING: Department of laboratory and internal medicine in a university.PARTICIPANTS: During the January and March 2002, 37 CI patients including 28 males and 9 females aged 45 - 87 years were selected from Department of Neurology, Union Hospital Affiliated to Tongji Medical College,Huazhong University of Science and Technology. Among 37 healthy people,20 males and 17 females aged 40 - 60 years were selected as control group.METHODS: Platelet distribution width (PDW), mean platelet volume (MPV), platelet-large cell ratio(P-LCR) and the changing quantity of B-PLT of 37 CI patients were analyzed with blood cell counter, meanwhile,the healthy people were analyzed as control subjects.MAIN OUTCOME MEASURES: Changes of B-PLT parameters in two groups respectively.RESULTS: A positive relation between PDW and P-LCR was observed and between P-LCR and MPV as well( r = 0. 99, 0.92, P ＜ 0. 001 ). A negative correlation between B-PLT quantity and MPV was observed and also between B-PLTquantity and P-LCR(r= -0.58, -0.59, P ＜0.05) .In CI patients, PDW, MPV and P-LCR were(14.51 ± 2. 88)%, (10.95 ± 1.48) fl and(34.24 ± 11.23)% respectively, which were higher than those of healthy people [ (12. 86 ± 2.02)%, (10. 19 ± 1.29) fl, (28.47 ± 9.41 )% ]respectively, and the difference was significant( P =0. 019 31, 0. 021 77 and 0.026 35), but there was no significant difference between the two groups in B-PLT quantity.CONCLUSION: The blood platelets' parameters in CI patients, which reflect the function of the B-PLT, are significantly higher than those in healthy people. It shows that the enhanced function of platelet is a risk factor of cerebral infarction, the use of blood cell counter in analysis can observe the variation of the platelets' function rapidly and accurately. It can be a useful method of the therapy and prevention in CI patients.

In the last decade, next-generation sequencing (NGS) technology, which is characterized by being high-throughput, rapid, sensitive, and accurate, has developed rapidly. Main components of NGS are platforms: 454 sequencing; illumina sequencing; ion torrent sequencing; SOLID sequencing. NGS is used widely for the human immunodeficiency virus (HIV)-1. In this review, we focus on applications of the dynamics of HIV-1 quasispecies.
Animals ; HIV Infections ; virology ; HIV-1 ; classification ; genetics ; isolation & purification ; High-Throughput Nucleotide Sequencing ; methods ; Humans

Human immunodeficiency virus ( HIV) is commonly transmitted through blood transfu-sion, sexual contact and mother-to-child transmission. The number of patients with HIV infection has kept growing in the last three decades. Although the wide application of antiretroviral therapy ( ART) has effec-tively suppressed the replication of HIV, the emergence of drug resistant mutants compromises the efficacy of ART. What is worse is that there has been transmission of drug resistance strains in ART-na?ve HIV-infected individuals. This review describes the distribution of transmitted drug resistance strains in different regions and high risk population as well as the factors associated with the transmission in recent years.

AlM:To explore the clinical outcome of trabeculectomy with mitomycin C ( MMC) on glaucoma.
METHODS: A total of 57 patients (95 eyes) of primary glaucoma were randomly divided into two groups, 31 patients ( 54 eyes ) in trabeculectomy with MMC ( T+MMC ) group, which received trabeculectomy with 0. 2mg/mL MMC in surgical sites, and 26 patients ( 41 eyes ) in trabeculectomy ( T ) group. The anterior chamber, bleb, intraocular pressure ( lOP ) and complications were observed. The post-operative follow-up periods ranged between 4 and 6mo.
RESULTS:The mean lOP was 11. 24 ± 3. 73mmHg on 1d in group T+MMC. There was the significant difference compared with preoperative lOP ( P<0. 01 ), while no difference with the group T (P>0. 05). At final follow-up, the lOP was significantly different between group T+MMC and group T (16. 15±3. 62mmHg vs 18. 79±5. 27mmHg, P<0. 05). The rate of bleb formation was 94. 44% and 80. 48%in group T+MMC and T, respectively (P<0. 01). The postoperative complications were seldom, hyphema and corneal edema, and were cured finally.
CONCLUSlON:Trabeculectomy with MMC for glaucoma can effectively reduce postoperative scar formation of the filtration passage and lower the lOP to a target level with fewer complications.

AIM: To analyze the clinical value of femtosecond laser in vitrectomy combined with phacoemulsification and intraocular lens (IOL) implantation.
METHODS: We selected 100 patients ( 102 eyes ) undergoing vitrectomy combined with phacoemulsification and IOL implantation in our hospital from October 31 2013 to October 31 2015. They were divided into routine operation group, 50 cases (52 eyes), and femtosecond laser group, 50 cases (50 eyes). The parameters were compared between the two groups, including total operation time, postoperative complications ( elevated intraocular pressure, uveitis, vitreous hemorrhage, and retinal detachment ), postoperative intraocular pressure and postoperative half of the visual acuity ( near visual acuity, visual acuity, uncorrected visual acuity, corrected visual acuity).
RESULTS: The difference on total operation time of the two groups was statistically significant ( P < 0. 05). The differences between the two groups on postoperative intraocular pressure, uveitis, vitreous hemorrhage, retinal detachment were not statistically significant ( P >0. 05). There were no significant differences on internal pressure, near visual acuity, far visual acuity, uncorrected visual acuity, corrected visual acuity at 6mo after surgery (P>0. 05).
CONCLUSION: Femtosecond laser in vitrectomy combined with phacoemulsification and IOL implantation has a high safety and efficacy with the advantages as accurate, efficient.

Acupuncture Points ; Aged ; Aged, 80 and over ; Bloodletting ; Female ; Humans ; Middle Aged ; Pruritus ; therapy

BackgroundBigbag intraocular lens (IOL),due to its special conducive design to support vitreous and retina after cataract surgery in high myopia,and ensure the visualization of peripheral retinal,is closely concerned.But whether its concave design has the advantage in reducing aberrations on the basis of stability or not is worth to be studied.ObjectiveThis study was to evaluate the high order aberrations(HOA) of phacoemulsification and the Bigbag IOL implantation in patients with myopia and cataract.MethodsA retrospective case-observational study was designed.Total 39 eyes of 39 cases with cataract and high myopia were enrolled in this study.The patients were divided into Bigbag IOL group and AR40e IOL group.Phaco-chop technique and IOL implantation were performed in April to June,2010 in Tianjin Eye Hospital.Two months after surgery,the operated eyes were clinical examined and the aberrations were detected including Root-Mean-Square (RMS),coma,spherical and Trefoil.Postoperative RMS values of HOA components of the whole and interior optic with iTrace were compared.Results The operation was smoothly with the correct IOL position after two months.No complication was found.Under the 4.5 mm pupil diameters,the whole ocular HOA RMS values and coma were significantly different between Bigbag IOL group and AR40e IOL group( t =-3.296 、-3.322,P＜0.05 ),but no significant differences were seen in spherical and Trefoil aberrations ( t =- 1.256、- 0.573,P＞ 0.05 ).Regarding to the interior optic with iTrace aberration,only the coma showed the significant difference between Bigbag IOL group and A R40e IOL group( t =-2.004,P＜0.05 ),and there were no significant differences in RMS,spherical and Trefoil aberrations( t=-1.073、0.380、0.288,P＞0.05 ).ConclusionsThe Bigbag IOL,a design for high myopia,is safe and effective after implant for the high myopia with cataract.It offers more exact obligate degree and better visual quality.The chief total and interior HOA components difference between groups is coma aberration.

Background The test for visual acuity is the conventional standard for evaluating visual quality.However,there is little correlation between visual acuity and visual disability.Therefore,other clinical observations such as contrast sensitivity or straylight have been used in the clinical assessment of visual quality after cataract surgery.Objective This study was to examine the change in the amount of straylight in cataractous eyes and to evaluate the correlation of the types of cataract with visual quality.Methods A non-randomized case-controlled study was designed.Eighty eyes of 40 patients with age-related cataract were enrolled in this study,including 22 eyes with hard nucleus cataract,19 eyes with cortical cataract,23 eyes with mixed cataract and 16 eyes with posterior subcapsular cataract diagnosed based on the criteria from Lens Opacities Classification System Ⅲ(LOCS Ⅲ).The values for straylight and best corrected visual acuity (BCVA) were measured with the C-quant straylight meter and Snellen chart,respectively.The differences in the straylight values among the different types of cataract were analyzed,and the correlation of the straylight value with age or BCVA was assessed.Forty eyes of 40 age-matched normal people served as controls.Results Examination was completed in sixty-two eyes of 31 patients in the cataract group at a completion rate of 77.5％,and all the subjects in the control group finished the examination at a rate of 100％.The mean straylight value was (2.06±0.88) log in the cataract group and (1.96±0.42) log in the control group,showing a significant difference between them (t =3.251,P＜0.01).The respective mean C-quant measurements for hard nucleus cataract,cortical cataract,nuclear-cortical cataract and posterior subcapsular cataract patients were (1.96±0.42) log,(1.91 ±0.16) log,(2.05 ±0.19) log and (2.48 ±0.66) log,respectively,with a significant difference among these four groups (F =2.156,P =0.019).The highest straylight value was detected in the posterior subcapsular cataract group.The straylight value was enlarged with the increase of age with a regression equation of Y=0.0010X+ 1.025 in the hard nucleus cataract group (r =0.455,P ＜ 0.05).In addition,the negative linear correlation was found between the straylight value and BCVA in both the hard nucleus cataract group and cortical cataract group (r=-0.590,-0.697,P＜0.01).However,no correlation was found in the mixed cataract group and posterior subcapsular cataract group (r =-0.240,-0.235,P＞0.05).Conclusions The C-quant straylight meter can objectively reflect the visual function for hard nucleus and cortical cataractous eye.Posterior subcapsular cataract produces straylight and exerts a great influence on visual quality due to early glare sensation,so it should be benefit to perform surgery earlier.

AlM:To evaluate the early diagnosis of sub-clinic stage of diabetic retinopathy.
METHODS: This was cross sectional study, multifocal retina electroretinogram ( mf-ERG ) , contrast sensitivity ( CS) and central retinal artery color Doppler examination were recorded from 30 cases ( 30 eyes ) matched control subjects, 35 cases (35 eyes) with type 2 diabetes mellitus (DM) without diabetic retinopathy ( NDR) and 38 cases ( 38 eyes ) with non-prolifera tive diabetic retinopathy ( NPDR) . One-way ANOVA and SNK-q test were used for data analysis.
RESULTS: P1 response density of NDR patients were found decrease, N1 implicit time were delayed. Which were related with the degree of retinopathy (P<0. 05);CS of NDR patients were found significant in middle and high frequency ( P < 0. 05 ), NPDR patients were found significant in full frequency ( P<0. 05 ); Central retinal artery (CRA) blood flow in the control groups and NDR groups were not found statistically significant (P>0. 05), The differences between normal group, NDR group and NPDR group were found statistically significant (P<0. 05).
CONCLUSlON: mf-ERG and CS are sensitive indexes for early evaluation of visual function in patients with diabetes mellitus, with development of the disease, CRA blood flow also appears to decline.