· AIM: DLAD (DnaseII-like acid Dnase) is an acid DNase that is highly expressed in human and murine lens fibre cells. Recently, the DLAD-/- mice with a deficience in DLAD gene were reported to develop nuclear cataract.To elucidate whether a deficient DLAD gene can cause some human cataract, we studied autosomal dominant nuclear catarat in 6 families and analysed linkage between cataract and DLAD locus.·METHODS: Two-point Lod score values were obtained for markers D1S551 and GATA65B07.· RESULTS: The results show negative Lod scores (z=-∞ at θ =0), so linkage was excluded between the defect and DLAD locus in these families.·CONCLUSION: no evidence for cataracts in these families linkage to chromosome 1p22.3, the DLAD locus.

ObjectiveTo observe testis tissue changes of experimental cryptorchidism after orchiopexy in various-day-rats.MethodsSeventy-two Sprague-Dawley(SD) male rats were divided into 3 groups randomly and made artificial cryptorchidism:unilateral cryptorchidism group(n=24),bilateral cryptorchidism group(n=24)and sham operation group(n=24)at age 21-day-old.Intra-abdominal testicle was resetting in 2 weeks,at age 40 days and 60 days,the rats were sacrificed for detection tubular fertility index(TFI) and mean tubular diametar(MTD) with hematoxylin-eosine staining and germ cell apoptosis by terminal deoxynucleotidyl transferase mediated d-UTP nick end labeling(TUNEL) assay.ResultsThere were significant differences of MTD,TFI and apoptosis index(AI) between cryptorchidism and scrotal testes(P0.05).The AI of cryptorchidism testes of unilateral cryptorchidism group were significantly lower than that of bilateral cryptorchidism group in 40 days(P0.05).ConclusionsAI of artificial resetting testis is increased and contralateral descended testes in unila-teral cryptorchidism have various damage.It is to lighten that pathological damage of testes of cryptorchidism with prolongation of reset time.

Objective To construct a fusion gene (h1a-spaO) encoding H1a-SpaO protein of Sal-monella paratyphi A ( S.paratyphi A) and to express it in prokaryotic expression system , then to further ana-lyze the immunoprotective effects of the expressed protein rH 1a-SpaO.Methods The h1a-spaO fusion gene formed from separate h1a and spaO genes was amplified by PCR using flexible peptide sequence-containing linking primers and then sequenced after T-A cloning.A prokaryotic expression system for expressing h1a-spaO fusion gene was constructed by using the genetic engineering technique .The expressed protein rH1a-SpaO was examined by SDS-PAGE.The antigenicity and immunoreactivity of rH1a-SpaO protein were deter-mined by Western blot assay .The ability of rH1a-SpaO antiserum agglutinating S.paratyphi A strains was detected by micro-Widal′s test.The immunoprotective effects of rH 1a-SpaO against the lethal dose challenge of S.paratyphi A strains were analyzed in a mouse model and that were compared with those by using equal dose of individual recombinant protein H1a and SpaO (rH1a and rSpaO) as the immunogens, respectively. Results The h1a-spaO fusion gene was 100%identical with the individual h1a or spaO gene in nucleotide and amino acid sequences .The constructed prokaryotic expression system could express the recombinant pro-tein rH1a-SpaO with an advantage of high efficiency .rH1a-SpaO protein was able to react with rH 1a or rSpaO antiserum.Moreover, rH1a-SpaO antiserum also could efficiently recognize rH 1a and rSpaO as well as agglutinate Salmonella paratyphi A strains by binding with H-antigen.The immunoprotective rate (93.3%) in mice pre-immunized with 100 μg of rH1a-SpaO protein was significantly higher than that in those pre-immunized with equal dose of rH1a (60.0%) protein or rSpaO protein(53.3%) (P<0.05).Conclusion The recombinant fusion protein rH 1a-SpaO showed more stronger immunoprotective function than the individ-ual rH1a or rSpaO protein , which could be used as an effective antigen for the development of bi -valent para-typhoid A vaccine or typhoid/paratyphoid capsular polysaccharide-protein combined vaccine .

Objective To summarize the nursing experience of 1 case of very low birth weight infant decannulation difficult in PICC. Methods The nursing key points included: full assessment analysis decannulation difficult reason, consult the PICC catheter outpatient health nurses, give magnesium sulfate hydropathic compress, mucopolysaccharide polysulfate cream local besmear outside, sanyrene outside, at the same time give low-molecular-weight heparin calcium injection subcutaneous injection such as anticoagulant active treatment and nursing. Results After 7 days ,the infant left axillary mass dispel, PICC pull out smoothly. Conclusions Decannulation difficult of very low birth weight infant requires full evaluation, multidisciplinary cooperation and specialist consultation, can give targeted personalized nursing safety smooth tube drawing, is worthy of reference for clinic.

Objective To investigate the influence of factors related to metabolic syndrome(MS)on the outcome in subjects without diabetes mellitus in a community.Methods A two-year follow-up study was conducted in 885 subjects who were enrolled in the epidemiologic survey carried out in Pingliang Community, Shanghai in 2002.Oral glucose tolerance test,lipid prefde,blood pressure(BP),body mass index(BMI),waist and hip circumferences were measured.Results (1)The baseline of BMI,fasting plasma glucose(FPG),2h plasma glucose after glucose loading(2hPG),BP,triglyceride(TG)in the subjects with impaired glucose regulation(IGR)increased significantly as compared to those with normal glucose regulation(NGR)(all P

Objective To observe effect of Jintong capsule on model mice of tourette syndrome (TS).Methods TS models of mouse were established by intraperitoneal injection of amphetamine (AMP) or subcutaneous injection of apomorphine (APO). The animals were randomly divided into the normal control group, model group, Jintong capsule large dose group, Jintong capsule small dose group and haloperidol control group. The spontaneous movements and grasping action of model animals were observed and the contents of dopamine and its products of metabolism in striatum of animals were detected.Results The abnormal hyperactivity and the content of dopamine of Jintong capsule groups in striatum of AMP model mice were lower than that of the model group ( P< 0.05 ), and the grasping time of Jintong capsule groups in APO model mice shorten compare with the control group ( P<0.05).Conclusion Jintong capsule can ameliorate hyperactivity behaviors of these two animal models, and decrease the content of dopamine in striatum.

0.05),the mean FA on the left was higher than the right(t=1.912,P

Objective To determine if there is any difference in neuronal and glial(astrocytic and microglial)activation in the spinal cord in three rat models of neuropathic pain.Methods Twenty-four SD rats weighing 150-200 g were randomly divided into 4 groups(n=6 each):Ⅰ control group;Ⅱ chronic constrictive injury group(CCI);Ⅲ spinal nerve ligation group(SNL)and Ⅳ spared nerve injury(SNI).No operation was performed in control group.In CCI group left sciatic nerve was exposed and loosely ligated with catgut.In SNL group the L_5 spinal nerve was exposed and ligated with silk suture and cut.In SNI group tibial nerve and common fibular nerve were ligated and cut.Pain threshold was measured using plantar tactile stimulator(Ugo,Basile Co. Italy)every other day from 3 days before until 15 days after operation.50% paw withdrawal threshold was measured using up-and-down sequential mechanical stimulation of different intensity(0.45,0.70,1.20,2.00, 3.63,5.50,8.50,15.10 g)applied to the plantar surface of the injured paw.On the 15~(th) day after operation after pain threshold was measured the animals were anesthetized with intraperitoneal 10% chloral hydrate 400 mg? kg~(-1).The L_(5,6) segment of the spinal cord was isolated.Neuronal,astrocytic and microglial activation was determined by immuno-histochemistry with antibodies of c-Fos(a proto-oncogene protein),GFAP(an astrocyte marker)and OX-42(a microglial marker).Results The 50% paw withdrawal threshold reached the lowest level on the 7~(th) day after operation.The lowest level was maintained until the 15~(th) day after operation in group CCI,SNL and SNI.The 50 % paw withdrawal threshold was(14.1+1.5)g in control group,(2.5+0.5)g in CCI group, (1.5?0.6)g in group SNL and(0.8?0.4)g in group SNI.The number of c-Fos positive neurons in laminae Ⅳ-Ⅵ of dorsal horn was significantly greater in group CCI,SNL and SNI than in control group,but there was no significant difference among the 3 peripheral nerve injury groups.The activation of astrocytes and microglias in laminae Ⅰ-Ⅳ of dorsal horn was significantly increased in group CCI,SNL and SNI than in control group but there was no significant difference among the 3 peripheral nerve injury groups.Condusion There is no significant difference in activation of neurons and astrocytes and microglias in the ipsilateral dorsal horn among the 3 pain models.

OBJECTIVETo investigate the protective effect of extracts from Cichorium endivia (CEE) in H2O2-induced HepG2 cell oxidative stress injury, and explore the antioxidant mechanism of CEE in HepG2 cells.

METHODThe viability of H2O2-induced HepG2 cells and the intracellular ROS level were measured by MTT assay and DCFH-DA fluorescence staining assay. The antioxidant-response element (ARE)-Luciferase activity was tested in HepG2 cells stably transected by ARE reporter gene. The fluorescence quantitative RT-PCR was adopted to determine the mRNA expressions of genes containing ARE sequence in HepG2 cells.

RESULTThe cell viability reduced, while the ROS level increased after HepG2 cells were treated by H2O2. Different concentrations of CEE could be added to significantly improve the above results. After HepG2 cells transected by ARE reporter gene were treated with different concentrations of CEE, the intracellular ARE activity could increase in a concentration-dependent manner. In addition, the mRNA expressions of regulatory genesGCLC, GCLM and HMOX-1 containing ARE sequence in HepG2 cells were up-regulated in a concentration-dependent manner by CEE.

CONCLUSIONCEE inhibited the H2O2-injured HepG2 cells by reducing the ROS level. CEE's antioxidant mechanism for HepG2 cells may be closely related to the antioxidant defense system associated with its effect of activating Nrf2-ARE pathway in HepG2 cells.

Antioxidants ; isolation & purification ; pharmacology ; Asteraceae ; chemistry ; Cell Survival ; drug effects ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Hep G2 Cells ; Humans ; Hydrogen Peroxide ; pharmacology ; Reactive Oxygen Species ; metabolism ; Response Elements ; genetics

OBJECTIVETo study the effects of different parameters (frequency, intensity, needle-retained time and treatment interval) of electroacupuncture at Fenglong (ST 40) for adjusting blood lipids, so as to find out the optimization parameter.

METHODSFifty-four cases meeting the criteria for hyperlipoidemia were randomly divided into 27 groups with orthogonal design L27 (3(13) ). According to the orthogonal design program they were treated with electroacupuncture at Fenglong (ST 40). Ten sessions constituted one course with a one week's interval between two course. The treatment was given for 2 courses.

RESULTS(1) The parameters of EA at Fenglong (ST 40) for regulating blood lipids in primary and secondary orders are: frequency, needle-retained time, interval of treatment, intensity. (2) The parameters of EA at Fenglong (ST 40) for various programs in regulating various blood lipids are: for TG, frequency AM 50 Hz, needle-retained time 20 ain, intensity 1 mA, twice each week; for TC, frequency AM 100 Hz, needle-retained time 30 min, intensity 1 mA, once every other day; for LDL-C, frequency Am 100 Hz, needle-retained time 30 min, intensity tolerable and comfortable, once every other day.

Acupuncture Points ; Aged ; Cholesterol ; blood ; Cholesterol, HDL ; blood ; Cholesterol, LDL ; blood ; Electroacupuncture ; methods ; Female ; Humans ; Hyperlipidemias ; blood ; therapy ; Lipids ; blood ; Male ; Middle Aged