·AIM:To observe the efficacy and the safety of low-dose mitomycin-C (MMC) in the treatment of pterygium.·METHODS:In a prospective,randomized and controlled clinical trial,a total of 550 eyes of 400 patients diagnosed with pterygium were randomly divided into the four groups-group 1:130 eyes of 100 patients,without MMC;group 2:140 eyes of 100 patients,with 0.2g/L MMC;group 3:150 eyes of 100 patients,with 0.3g/L MMC;group 4:130 eyes of 100 patients,with 0.4g/L MMC.They underwent the excision of primary pterygium barely the sclera.Visual acuity,intraocular pressure (IOP),extraocular movement,iridocyclitis,scarring, symptoms (tearing,photophobia,foreign body sensation) and signs (conjun-ctival hyperemia,ulcer of sclera and cornea,perforation of sclera) of subjects,were recorded on the day of enrollment,and after the surgery,on 2 weeks,2 months,6 months,and 1 year.·RESULTS:In group 3 and group 4,the recurrence of pterygium after the excision were less than that in group 1 and group 2 ( P < 0.01 ).In group 4,after the surgery,there were more probability of raising lOP,iridocyclitis,symptoms and signs than that in group 1,2,and 3.·CONCLUSION:Low-dose MMC is effective in the treatment of preventing the recurrence of primary pterygium.Its efficacy rises along with its density.And meantime,the safety of the treatment of low-dose MMC declines.

Objective To investigate the clinical effects of focused ultrasound in the treatment of cervical erosion.Methods 417 patients with cervical erosion were treated with focused ultrasound(Haijixing treatment instrument),and followed up for 3 months to observe the efficacy and adverse reactions.Results In total 417 cases,321cases(76.98％) were cured,and there were effective in 95 cases(22.78％),ineffective in 1 case(0.24％),and the total effective rate was 99.76％.No serious adverse reactions were founded.Conclusion Focused ultrasound(Haijixing treatment instrument) in the treatment of cervical erosion has obvious effect and mild adverse reactions.

China ; Humans ; Vascular Diseases

Objective:To investigate the effects of the treatment of early cracked teeth with vital pulp preservation.Methods:63 early cracked teeth with vital pulp in 56 patients were treated by light cured composite resin filling with or without MTA rebasing,and restored by precious metal crown.The patients were followed up for 2 years.Results:After 2 years follow-up,57 teeth were successfully treated and failure was found in 6 teeth,the effective rate was 90.4％.Conclusion:Light cured resin filling directly or with MTA rebasing for early cracked teeth with vital pulp,and restoration by precious metal crown are effective in the treatment of early cracked teeth with vital pulp.

BACKGROUND:Several studies have demonstrated that bone marrow mesenchymal stem cells (BMSCs) inhibit the proliferation and activation of T lymphocytes, exerting a role of negative immunological regulation. OBJECTIVE: To induce rat BMSCs to differentiate into neuron-like cells in vitro using all-trans retinoic acid and to investigate the effects of differentiated cells on T lymphocyte proliferation.DESIGN, TIME AND SETTING: A cytological in vitro observation was performed in Guangdong Medical College in March 2008.MATERIALS: Two male 4-week-old Sprague Dawley rats were provided by the Laboratory Animal Center of Guangdong Medical College. Fresh healthy human blood was provided by the Department of Clinical Laboratory, Guangdong Medical College. METHODS: Rat BMSCs were isolated by adherent method and were passaged in vitro. Cells of passage 5 were pre-induced with Low glucose-dulbecco's modified eagle's medium (LG-DMEM) containing 0.3 mg/L all-trans retinoic acid and 10% fetal bovine serum. Twenty-four hours later, aforementioned LG-DMEM was discarded and LG-DMEM containing 0.6 mg/L all-trans retinoic acid was added to induce cells differentiation into neuron-like cells. Fresh healthy human blood was taken to prepare responding cells. Rat BMSCs, as stimulator cells, were included for one-way mixed lymphocyte reaction. Four groups were designated. Control group: 100 μL of responding cells at a concentration of 1×109/L; Experimental group 1:1×104 neuron-like cells + 100 μL of responding cells; Experimental group 2:1×105 neuron-like cells + 100 μL of responding cells; Experimental group 3:1×106 neuron-like cells + 100 μL of responding cells.MAIN OUTCOME MEASURES: Morphological observation of induce-differentiated cells, identification of nerve cells, and one-way mixed lymphocyte reaction results.RESULTS: Fifty minutes after addition of inducing medium, under the optical microscope, BMSCs exhibited a typical morphology of perikaryon. Three hours later, most of cells became into bipolar or multipolar neuron-like cell appearance with cell bodies and processes. Immunocytochemical staining results showed that majority of cells exhibited neuron specific enolase- and nestin-positive expression and glial fibrillary acidic protein-negative expression. Compared with the control group, radionuclide counts per minute were significantly reduced in each experimental group (P<0.05). There was significant difference in radionuclide counts per minute between experimental groups (P<0.05). With increasing BMSCs amount, the inhibitory effects on T lymphocyte proliferation were more evident.CONCLUSION: AII-trans retinoic acid can induce neuron-like cell differentiation of rat BMSCs in vitro. The neuron-like cells can inhibit human T lymphocyte proliferation in a dose-dependent manner.

Objective To explore clinical characteristics and pathogenic gene of lisencephaly. Methods The clinical manifestation, laboratory examination and gene detection results of lisencephaly in two children were analyzed retrospectively, and relevant literature were reviewed. Results Two male children with lisencephaly are at ages of 7 months, and 3 years and 4 months respectively. Both of them were admitted to hospital due to epilepsy and loss of consciousness at the time of attack. There was no obvious abnormality in laboratory examination. Both of their EEG indicated epileptic wave. Cranial MRI showed lissencelphaly. Gene analysis showed that there was a heterozygous mutation of IVS3-1G>A in PAFAH1B1 gene in a child, which resulted in the deletion of exon 4 in mRNA level by functional analysis. No mutations were found in the parents of the child. The other one had c.274A>G mutation (p.K92E) in PAFAH1B1 gene, which has not been reported before, and his parents were normal. Conclusion Patients with lissencelphaly may combine with epilepsy, and the PAFAH1B1 gene mutation is the common cause.

OBJECTIVE:To summarize the method and experience of clinical pharmacist participating in pharmaceutical care for a case of refractory class Ⅳ+Ⅴ lupus nephritis (LN). METHODS:Clinical pharmacists and physicians formulated individualized treatment together,i.e. prednisone 30 mg/d+MMF 0.5 g,q12 h+FK506 1 mg,q12 h;on the fifth day of treatment,the patient suf-fered from ardent fever and increase of blood pressure,and clinical pharmacist suggested using linezolid 0.6 g,ivdrip,q12 h+merope-nem1.0 g,ivdrip,q8 h to control pulmonary infection;using Amlodipine besylate tablet 5 mg,po,qd+one Valsartan hydrochlorothia-zide capsule, po,qd+Arotinolol hydrochlorid tablet 10 mg,po,bid to control blood pressure. RESULTS:Multi-target treatment for re-fractory class Ⅳ+Ⅴ lupus nephritis achieved efficacy:the patient got higher plasma albumin and lower 24 h urine protein quantity af-ter 14 days;the patient suffered from secondary pulmonary infection and high blood pressure;physicians adopted the pharmacist’s suggestion so that pulmonary infection and blood pressure had been controlled. CONCLUSIONS:To ensure the effectiveness and safe-ty of the multi-target treatment,clinical pharmacists should formulate individualized treatment,focus on the possible ADR and provide phamaceutical care in the field of blood pressure monitoring,infection control,etc. when participating in multi-target treatment.

The theory framework of "cognition- emotion-behavior" of the Gestalt Psychology is based on to build the conceptual model to integrate service encounter quality, customer consumption emotion and customer satisfaction. Such a model is also used to raise related hypothesis and verified against the backdrop of the medical service industry. Empirical outcomes prove the following: hospital service encounter quality consists such factors as environment dominance, doctor dominance and nurse dominance; in the course of their consumption in hospitals, patients undergo at the same time positive consumption emotion and negative consumption emotion, as the latter exerts negative impacts on the positive one; hospital service encounter quality bears significant impact on both patient' s consumption emotion and patient satisfaction; positive emotion and negative emotion both bear significant impacts on patient' s satisfaction.

Objective To explore the relationship between P-selection,nitric oxide(NO),high-sensitive-C-reactive protein(hs-CRP)and type 2 diabetes mellitus(T2DM)with macroangiopathy.Methods In sernm of 125 T2DM subjects(60 subjects with macroangiopathy and 65 subjects without macroangiopathy)and 55 normal controls,the activity of P-selection,NO and hs-CRP was detected by ELISA,Nitrate Reductase Assay and scattering immunoturbidimetric method,respectivley.Results The activity of serum P-selection and hs-CRP was significantly higher in diabetic macroangiopathie group than in non macroangiopathic group and control normal.Serum NO was significantly lower in diabetic rnacroanglopathic group than in non macroangiopathic group and control normal.Serum P-selection was positively correlated with hs-CRP-systolic blood pressure(SBP),LDL-C,and was negatively correla- ted with NO:P-selection,hs-CRP,LDL-C and SBP were independently risk factors for T2DM with macroangiopathy. Conclusion Determination of P-selection and NO is very important for prevention and diagnosis of diabetic mac- roangiopathy in early stage.