Objective To investigate the apoptotic effects of hypertrophic scar fibroblast (HSF) induced by HMME-PDT.Methods Fibroblasts were cultured from nontreated hypertrophic scars,and cells at passages 4-6 were used for the experiments (photosensitizer dose 4 μg/ml,λ630 nm,pow er density 10 mw/cm2,energy fluence 2.5 J/cm2).Morphological and biochemical changes in fibroblasts were assessed by Hoechst 33258 staining and fluorescence microscopy.The rate of apoptotic or necrotic cells was detected by flow cytometry (FCM) through double staining of Annexin V -FITC and popodium iodide (PI),respectively.Results Marked morphological features of cell apoptosis were viewed under the fluorescent microscope through Hoechst 33258 staining.The analysis of FCM indica ted that the apoptotic rate was significantly increased after HMME PDT [(34.82 ± I.42) ％ vs (3.12±0.28) ％,P＜0.05],and apoptotic rate was higher than necrosis rate [(14.65±1.02) ％ vs (34.82±1.42) ％,P＜0.05].Conclusions Low level exposure to 630 nm PDT mediated by HMME appears to induce fibroblast apoptosis.

Objectives To study health-related quality of life(HRQOL) of children with subclinical epileptiform electroencephalographic discharges.Methods Subjects were 30 children with subclinical epileptiform electroencephalographic discharges,50 children with clinical seizures,28 children without clinical seizures and 30 controls.Guardians completed a valid epilepsy-specific HRQOL questionnaire for children,the quality of life in children epilepsy questionnaire(QOLCE).Results Children with subclinical epileptiform electroencephalographic discharges have 8 subscales scores lower than control group,2 subscales scores higher than group with clinical seizures.Conclusions Quality of life of children with subclinical epileptiform electroencephalographic discharges is better than that of children with clinical seizures.However cognitive,behavior,daily life and social activity are impaired by subclinical epileptiform electroencephalographic discharges and lowered the HRQOL of children.

ObjectiveTo investigate the role of caspase 3 in HMME-induced apoptosis in hypertrophic scar fibroblasts (HSFs).MethodsFibroblasts were obtained from 10 patients with untreated hypertrophic scar,and subjected to a primary culture.After 4 to 6 passages of culture,the HSFs were divided into 3 groups to remain untreated(control group),be treated with HMME followed by photodynamic therapy (HMME-PDT group),or the combination of HMME and Z-DEVD-FMK followed by photodynamic therapy (caspase 3 inhibitor group).At 12 hours after the therapy,HSFs were collected and immunofluorescence microscopy was used to observe the fluorescence intensity of caspase 3 after staining with fluorescein isocyanate (FITC) and popodium iodide (PI),flow cytometry was performed to determine the percentage of caspase 3-positive HSFs and apoptosis rate in HSFs after single staining with FITC and PI respectively.Results The fluorescence intensity of caspase 3 was weak in the control group and caspase 3 inhibitor group,but was strong in the HMME-PDT group.An increased percentage of caspase 3-positive HSFs was noted in the HMMEPDT group compared with the control group and caspase 3 inhibitor group(30.86％ ± 1.21％ vs.3.12％ ±0.28％ and 2.46％ ± 0.18％,t =19.92,21.76,both P ＜ 0.05).The apoptosis rate in HSFs was significantly higher in the HMME-PDT group and caspase 3 inhibitor group than in the control group(30.54％ ± 3.78％ and 10.46％ ± 2.15％ vs.2.45％ ± 0.22％,t =35.90,27.97,both P＜ 0.05),and higher in the HMME-PDT group than in the caspase 3 inhibitor group.ConclusionsThe apoptosis in HSFs induced by HMME-PDT is closely related to the activation of caspase 3,while caspase 3 seems to be dispensable for the apoptosis.

Objective To study the clinical outcomes and safety of immunoadsorption therapy for refractory autoimmune disease in children.Methods Three boys who suffered of severe autoimmune disease-one boy suffered of severe dermatomyositis and pulmonary infection; one suffered of severe anaphylactoid purpura with alimentary tract hemorrhage and entero ablation for intestinal perforation ; other one suffered of systemic juvenile idiopathic arthritis and severe prosopo-cellular tissue infection,macrophage active syndrome,were treated with blood immunoadsorption by resin immunoadsorbent of HA280.Then evaluated the clinical outcome of 3 cases,including symptom improvement,change of serum immune globulin,complement,enzyme of liver and heart,autoantibody.Results After the treatment of immunoadsorption,the symptom of 3 cases improved obviously; the sensitivity of the corticosteroids increased; autoantibody of antinuclear antibody (ANA) and anti-cyclic citrullinated peptide antibody (CCP) changed to negative; C-reactive protein (CRP) dropped (P ＜ 0.05) ; descending scale of IgM,IgA,C3,C4 increased (P ＜ 0.05) ; the normal scale of immunoglobulin didn't changed (P ＞ 0.05) ; besides aspartate aminotransferase (AST) dropped in the case of dermatomyositis,the other enzyme of liver and heart didn't changed.Conclusions The body could be restored quickly by the treatment of immunoadsorption together with the drug; CRP in the blood could be removed by immunoadsorbent of resin; 1 or 2 times blood immunoadsorption could not change the level of enzyme,but it need to do more on severe cases,especially those with poor organ function; for the safe of the treatment of immunoadsorption for the young age,low weigh and severe cases,the operative procedure should be critical care.

AIM:To assess changes of tear film function in patients after pterygium excision combined with amniotic membrane transplantation.
METHODS:Totally 126 patients with pterygium excision with amniotic membrane transplantation from January 2011 to November 2013 were entered in the study. The tear breakup time ( BUT) , the Schirmer I test ( SⅠt) and tear ferning test ( TFT ) were elevated in the patients before and after pterygium excision combined with amniotic membrane transplantation. The examnation times were 1d before surgey, 1wk, 1, 2mo after surgery. Operation eyes were studied group, while opposite healthy eyes as control group.
RESULTS: Compared with the control group, BUT and TFT were significantly different in the eyes with pterygium (P<0. 05); However, no obvious difference was detected in the results of SⅠt (P>0. 05). The results of BUT and TFT at 1mo after surgery in study group were significantly better than 1wk (P<0. 05), while no significant difference compared with 2mo (P>0. 05); The tear film stability in the study group at 1wk after surgery was still inferior to the control group (P<0. 05) and there was no significant difference at 1, 2mo after surgery (P all>0. 05). SⅠt results did not differ between the different examination times(P>0. 05).
CONCLUSION:Tear film stability was broken in the eyes with pterygium. Pterygium excision combined with amniotic membrane transplantation can obviously restore the tear film function into normal state, and the tear film function could reach steady-state 1mo after surgery.

·AlM:To evaluate the effect and safety of intrachamberal triamcinolone acetonide ( TA ) injection during cataract surgery on controlling postoperative inflammation and macular edema on diabetic patients.
· METHODS: Three hundred patients ( 300 eyes ) with type 2 diabetes who scheduled for cataract surgery were randomly divided into three groups: group A: 0.3%tobramycin/0. 1% dexamethasone eye drops and pranoprofen eye drops treatment for 1mo postoperatively;group B:intrachamberal injection of TA 1mg after cataract surgery, and 0.5% levofloxacin eye drops treatment for one month postoperatively; group C: intrachamberal injection of TA 2mg after cataract surgery, and 0.5%levofloxacin eye drops treatment for one month postoperatively.The main measurements included visual acuity, intraocular pressure ( lOP ) , corneal endothelial cell density, anterior chamber inflammation and the thickness of macula of the three groups.
· RESULTS:All cataract surgeries were done successfully by a single surgeon.The best corrected vision of group B and C was better than that of group A 1d, 1wk and 1mo postoperatively (P<0.05).The inflammation of anterior chamber of group B and C was milder than that of group A 1d and 1wk postoperatively (P<0.05).The average lOP of group C 1d postoperatively was higher than that of group A (P<0.05).There was no significant difference between group B and group C on the best corrected vision, anterior chamber inflammation and lOP at any time point.No significant change in the macular thickness was found in patients of group B and C before and after cataract surgery, while there was thicker macula in patients of group A 3wk and 1mo postoperatively when comparing with that of the baseline (P<0.05).There was no significant difference among three groups on corneal endothelial cell density at any time point.
· CONCLUSlON: lntrachamberal TA injection during phacoemulsification can effectively control postoperative inflammation, reduce the macular edema and accelerate the recovery of visual acuity.lntrachamberal TA 1mg has good effect and safety.

Natural killer (NK) cells, as an essential part of innate immunity, can directly identify and kill tumor cells after being activated by the synergistic action of surface inhibitory receptors and activated receptors. It can secrete cytokines to recruit dendritic cells (DCs), induce DCs maturation and enhance adaptive immune response. It can target cancer stem cells (CSCs) and circulating tumor cells (CTCs) to inhibit cancer metastasis. NK cells have a unique inflammatory tendency, which can respond to cytokines and chemokines released from tumor sites and migrate to tumor sites, making them occupy an important advantage in cancer targeted therapy. The research on cancer targeted therapy of NK cells as drug delivery carriers, NK cell membrane-coated biomimetic nanoparticles, and NK cell extracellular vesicles (NKEVs) has attracted more and more attention. The article will focus on the mechanism of NK cells inhibiting cancer, and summarize the research progress of cancer targeted therapy of NK cells.

Objective To observe the phosphorylation of Smad3 in hyperplastic scar fibroblasts (HSFs) induced by hematoporphyrin monomerthyl ether (HMME) followed by photodynamic therapy (PDT).Methods Fibroblasts were isolated from the hypertrophic scar tissues of 10 patients and subjected to culture in vitro.After 3-5 passages,the HSFs were divided into 4 groups:control group receiving no treatment,PDT group pretreated with HMME of 4 μg/ml followed by PDT,HMME group induced by HMME alone,and laser group irradiated with laser alone.Fluorescence microscopy was used to observe the expression of Smad3 after immunofluorescent staining with anti-Smad3 antibody,and Western blot to detect the expression of Smad3 and phosphorylated Smad3 in these HSFs.Paired t test was conducted to compare the difference in Smad3 and phosphorylated Smad3 expression between these groups.Results The total fluorescence intensity of Smad3 was similar between these groups,but the intranuclear fluorescence signal was significantly weaker in the PDT group than in the control group.The level of phosphorylated Smad3 was statistically decreased in the PDT group compared with the control group (0.20 ± 0.02 vs.0.92 ± 0.15,P ＜ 0.05),but no significant difference was observed between the HMME group and laser group (P ＞ 0.05).Conclusion PDT may inhibit the proliferation of HSFs via attenuating the phosphorylation of Smad3.

Objective To investigate the relationship between the "prominent laterality of the posterior cerebral artery (PLPCA)" found on magnetic resonance angiography (MCA) and the size and distribution of cerebral infarction and the National Institutes of Health Stroke Scale (NIHSS)scores in patients with occlusion of the M1 segment of the middle cerebral artery (MCA).Methods Fifty patients with acute cerebral infarction caused by the occlusion of the M1 segment of MCA were divided into PLPCA positive group (n =24) and PLPCA negative group (n =26) according to MRA manifestation.the NIHSS scores,size of cerebral infarction scores,and constituent ratios of distribution in all the feeding subregions of MCA in both groups were compared.Results The proportions of the patients with ≥3 risk factors (9/24 vs.18/26,P =0.046),NIHSS scores (5.4 4.4 vs.10.4 ±4.9,t = -3.690,P =0.001),and the size of cerebral infarction scores (1.92 ± 1.10vs.2.88 ± 1.37,t = -3.690,P =0.001) in the PLPCA positive group were significantly lower than those in the PLPCA negative group.The proportions of the patients with cerebral infarction involying the middle branch of the MCA territory (6/24 vs.19/26,P =0.002) and the posterior branch of the MCA territory (2/24 vs.5/26,P ＜0.001) in the PLPCA positive group were significantly lower than those in the PLPCA negative group.The proportions of the patients whose infarction involving the area of the posterior watershed zone were significantly higher than those in the PLPCA negative group (6/24 vs.1/26,P =0.045),and the proportions of complete infarction were significantly lower than those in the PLPCA negative group (0/24 vs.6/26,P =0.023).Conclusions When MCA M1segment was occluded,if PLPCA were observed on MRA,it indicated that the infarct size was smaller and the NIHSS score was lower.The infarction was less involved in the middle and post branches of MCA,and it is prone to have posterior watershed infarction.

Aims To construct an expression vector of human lncRNA H 1 9 ,and to determine the effect of H1 9 overexpression on MCF-7 cell proliferation. Methods Total RNA was extracted from MCF-7 cells,and the full-length of H1 9 lncRNA was amplified by RT-PCR and subcloned into pcDNA3.1 (-)ex-pression vector.The constructed H1 9 expression vector was transfected into HEK-293T and COS-7 cells and the H1 9 lncRNA expression was evaluated by real-time PCR.Following the transfection of H1 9 expression vec-tor into MCF-7 cells for 0,24h and 48h and H1 9 siR-NA interference fragment into MCF-7 cells for 24h, MCF-7 cell proliferation was determined by MTS as-say.Results A hH1 9-pcDNA3.1 (-)expression vector was successfully constructed. At Forty-eight hours after the transfection with H1 9 expression vector in to MCF-7 cells,cell proliferation was significantly increased in the transfected group compared to those without transfection and to those transfected with a neg-ative control vector,while twenty-four hours after the transfection with H1 9 siRNA interference fragment into MCF-7 cells,cell proliferation was significantly de-creased in the transfected group compared to those transfected with a negative control vector.Conclusion Ectopic overexpression of H1 9 lncRNA can promote breast cancer MCF-7 cell proliferation.