OBJECTIVETo investigate the changes in the craniofacial morphology ofdeepbite from childhood to adulthood using cross-sectional methods. To analyze the maxillofacial characteristics of adult deepbite.

METHODSThe sample included 159 children (with average age of 12.47 years old) and 81 adults (with average age of21.76 years old) with class III deepbite. The control group consisted of51 normal individuals (with average age of 18.41 years old). Lateral cephalometric radiographs were taken and recorded in a computer through a scanner. Cephalometric measurements were conducted by using Winceph 7.0 software, and results were analyzed with SPSS 12.0 software.

RESULTSSignificant differences between child and adult deepbite were observed in the following: N-ANS, ANS-Me, A-Ms, A-Ptm, Wits, Mo-Ms, Ii-Ii, A-B plane angle to the mandibular plane angle, Gonial angle, L1 to NB length, overjet, mandibular body to anterior cranial base, Mo-Mi, posterior facial height, U1 to NA length, Pog-Go, Cd-Go, occlusion plane angle to SN, and U1 to SN. In addition, significant differences between adult deepbite and normal occlusion were observed in SNB, ANB, convexity, APDI, ODI, Wits, A-B plane to mandibular plane, Gonial angle, overjet, mandibular body to anterior cranial base, S-Ptm, Mo-Mi U1 to SN; Pog-Go, Cd-Go, posterior cranial base, and occlusion plane to SN and posterior facial height.

CONCLUSIONDeepbite patients have certain growth potential after puberty, but the sagittal relationship of their jaws exhibits no improvement. Adult deepbite patients exhibit significant problems in the vertical and sagittal jaw positions.

Adult ; Bone and Bones ; Cephalometry ; Child ; Cross-Sectional Studies ; Dental Occlusion ; Female ; Humans ; Male ; Mandible ; Sexual Maturation

Objective To investigate the etiology and clinical features of transient global amnesia.Methods Seven patients diagnosed as transient global amnesia were analyzed by EEG,TCD,MRI or CT examination,five pa- tients analyzed by single photon emission computed tomography(SPECT).EEG and TCD examination were done within 24 hours during the attack.And SPECT,MRI or CT examination were done within 1 week during the at- tack.Results Six patients showed normal EEG,one patient showed a few slow waves;seven patients showed verte- brobasilar ischemia in TCD;six patients showed normal but one patient showed lacunar infarction in brain CT or MRI;five patients showed significant hypoperfusion in different encephalic region in brain SPECT.They were all fol- lowed up for three to tewty-four months respectively,six patients had no recurrence,but one patient recurred one time and the SPECT demonstrated a decreased cerebral blood flow in the left temporal lobe.Conclusion Transient global amnesia patients showed cerebral ischemia.Transient global amnesia may be related to the decrease of rCBF in the temporal lobe or the temporal hippocampus.

Objective To establish mouse allergic asthma model and observe the effect of bacterial lysates (OM-85BV) on airway inlfammation. Methods Forty-eight 4 to 6 weeks healthy male BALB/c mice were used as research subjects and randomly divided into six groups, a:control group;b:OM-85BV contral group;c:allergic asthma model;d:dexamethasone group (Dex group);e:OM-85BV A group;f:OM-85BV B group (the intervention time was prolonged 10 days than group e). BALB/c mice were sensitized and challenged with ovalbumin (OVA). Mice in groups c, d, e and f were intraperitoneally administered with antigen (OVA)-Al(OH)3 on days 1, 8 and 15, others were administered by PBS. From the 17th day to the 26th day, Mice in group f were treated with OM-85BV and others were treated with normal saline. In the next days, mice in groups c, d, e and f were intranasal given OVA for 5 consecutive days. Additionally, mice in groups b, e and f were treated with OM-85BV before challenge, while mice in the group d were administered by Dex, others were treated with normal saline at the same dose. Twenty four hours after the last intranasal administration, mice were anesthetized and dissected. Lungs were lavaged with PBS and bronchoalveolar lavage lfuid (BALF) was obtained. The total inlfammatory cells and eosinophils in BALF were counted. The total IgE levels of blood serum and IFN-γ/IL-4 levels of lavage were detected. The removed parts of lung tissue were collected for histological examination. Results Compared with groups a and b, lung tissue biopsies by HE staining from the asthma group showed obvious airway inlfammation. The situation of groups d and f was signiifcantly improved than group c, while the differences between groups e and c were not evident. Total cells and the number of eosinophils in BALF of group c (90.3±13.94×104/ml) were signiifcantly higher than that in groups a and b. Compared with the control group, levels of IL-4 in BALF (119.03±19.92 pg/ml) and IgE in serum (15.86±1.97 ng/ml) increased and levels of IFN-γin BALF (90.50±13.51 pg/ml) reduced signiifcantly. The corresponding levels of groups d, e and f were signiifcantly improved than group c (P<0.01). Conclusions Administered by OM-85BV helps regulate the balance between Th1/Th2 in asthmatic mice, reduce airway inlfammation, and prevent the occurrence and development of airway inlfammation.

An effective method has been developed for laboratory scale production of IgG. Hybridomas were cultured in serum-free media with 2% IgG-free ascites. Cell density of up to 3.55 × 10 6cells/ml and antibody concentration of 135μ g/ml after purification were abtained, which is four time more than total production of that of IgG concentration in serum-free media. This in vitro method allows great improvement in antibodies production in batch tissue culture. The method reported here is easy to handle and is economical and universally adaptable.

BACKGROUND: As a kind of filling material for wedge-shaped defects, GC Fuji Ⅸ glass-ionomer cement has arose more and more attention. However, the comparison of repair results between GC Fuji Ⅸ glass-ionomer cement and reinforced glass-ionomer cement are poorly understood. OBJECTIVE: To compare the clinical effect of GC Fuji Ⅸ glass-ionomer cement and reinforced gtass-ionomer cement for repairing wedge-shaped defects of old people. METHODS: Totally 80 teeth were randomly divided into 2 groups, and filled by GC Fuji Ⅸ glass-ionomer cement (experimental group) and reinforced glass-ionomer cement (control group), respectively. The clinical effect of 2 materials were evaluated on color match, edge density heterozygosity, restoration integrity, occurrence of secondary caries and pulp symptom at immediately, 3 months, 6 months and 1 year after placement. RESULTS AND CONCLUSION: The color match of the experimental group was better than that of the control group at 3 months, 6 months and 1 year after placement (P < 0.05); and the edge density heterozygosity of the experimental group was superior to the control group at 6 months and 1 year after placement (P < 0.05); in addition, the restoration integrity of the experimental group was surpass the control group at 1 year after placement (P < 0.05). It demonstrated that GC Fuji IX glass-ionomer cement is an ideal choice for wedge-shaped defects of old people, which exhibits superior effects to reinforced glass-ionomer cement in 1-year follow-up.

Objective To find an internal quality controlling method for 17-OHP determination by time-resolved fluoroimmuno-assay .Methods 20 quality control data were collected .The data were analyzed by using L-J method ,instant method and improved instant method .Results were used for the construction of quality control charts .Result The first three quality control data had a great impact on the following judgments of internal quality controlling when instant method was used .The subsequent results might be false acceptance .Improved instant method could effectively reduce the situations of false run-away and false acceptance ,which was suitable for the internal quality control of 17-OHP determination by time-resolved fluoroimmunoassay in newborn screening . Conclusion There are many steps of manual operations in 17-OHP determination of time-resolved fluoroimmunoassay .The details of these operations have great impacts on the experimental results .Thus ,the operations of 17-OHP test should be specified and exe-cuted strictly according to requirement .

Objective To investigate the effect of aerosol inhalation of iloprost on pulmonary arterial pressure and hypoxic pulmonary vasoconstriction (HPV)during one-lung ventilation (OLV) in rats.Methods Thirty male rats were randomly divided into three groups,10 in each group. Models of lung perfusion were established,100% FiO 2 was ensured under the condition of OLV and the atomizers were opened.Atomization inhalation with normal saline was performed in group A,ilo-prost at a concentration of 0.05 μg·kg-1 ·min-1 in group B and iloprost at a concentration of 0.1μg·kg-1 ·min-1 in group C.Mean pulmonary artery pressure (MPAP)and PaO 2 of drainage-fluid from left atrium were recorded at time points of perfusion for 10 min (T1 ),aerosol inhalation for 10 min (T2 )and OLV for 1 h (T3 ).Oxygenation index (OI)was calculated with PaO 2 at each time point.Both lungs were harvested for electronic microscope detection.Results MPAPs at T2 and T3 were higher in contrast with that at T1 (P <0.05).A decrease of MPAP at T2 and T3 showed in group B and C when compared with those in group A (P <0.05).Group C had lower MPAP in comparison with group B at each time point.Considering the time span,we found that OIs at T2 and T3 were lower than that at T1 .In addition,OIs at T2 and T3 in group C were higher than those in group B,respectively.Under elec-tronic microscope,nuclear membranes typeⅡ alveolar epithelial cells of both lungs in group A and of non-ventilated lungs in group B and C bulged out or invaginated and lamellar bodies were evacuated,especially when compared to those in ventilated lungs in groups B and C.Conclusion In rat models of lung perfusion, atomization inhalation with iloprost can decreased MPAP,reduce intrapulmonary shunt and increase oxygen-ation.

Objective To explore the effect of cucumber to moisten lips to alleviate xerostomia in patients with gastrointestinal decompression. Methods 180 patients were consecutively recruited at the department of gastric & intestinal surgery of the affiliated hospital of Guilin medical univemity from August 2010 to December 2011,they were randomly divided into the observation group and the control group,80 in each group.The observation group was given cucumber to moisten their lips besides conventional care,and the control group was only given conventional care.Finally we compared the two groups,and display difference between them in comfort degree of oral cavity. Results The comfort degree and oral cavity conditions of the observation group were better than those of the control group. Conclusions Giving cucumber to moisten lips can alleviate xerostomia and improve comfort level in patients with gastrointestinal decompression.

Objective To evaluate the anatomic morphology of submandibular fossa. Methods Cone-beam computed tomography (CBCT) was used to analyze the anatomic morphology of submandibular fossa. Implants of various dimensions were virtually placed into the mandibular 1st and 2nd molar region. Spatial relationships among submandibular fossa , mandibular canal and implant were analyzed. Results The depth of the submandibular fossa was (1.0 ± 0.61)mm in the 1st molar region and (1.5 ± 0.61)mm in the 2nd molar region. There were no significant statistical difference in genders, sides, and tooth loss. The length of the implants was (19.7 ± 3.75)mm (d = 4 mm) and (18.6 ± 3.73)mm (d = 5 mm) in the 1st molar region and (16.2 ± 3.46) mm (d = 4 mm) and (15.2 ± 3.09)mm (d = 5 mm) in the 2nd molar region in patiens with teeth and lingual perforation; the length of the implants was (17.1 ± 3.77)mm (d = 4 mm) and (15.6 ± 3.85)mm (d = 5 mm), and (14.2 ± 4.05)mm (d = 4 mm) and (13.2 ± 4.27)mm (d = 5 mm) in patients with tooth loss, respectively. Conclusions Determination of spatial relationships among submandibular fossa , mandibular canal and implants by using CBCT has important significance in guiding dental implant surgery.

Objective To establish a multi-drug resistant model of temporal lobe epilepsy,and to observe the changes of γ-aminobutyric acid (GABA) receptor expression in the hippocampal tissues so as to explore its effects in pharmacoresistant epileptogenesis.Methods One hundred rats were selected to prepare the amygdaloid kindled model of epilepsy by chronic stimulation of amygaloid basal lateral nucleus.After the kindled model of epilepsy was prepared successfully(n =52),pharmacoresistant epileptic rats were selected according to their response to the phenobabital and phenytoin.The selected pharmacoresistant epileptic rats (n =8)were sacrificed and the hippocampus was removed to determine the GABA receptor expression,and the same number of pharmacosensitive epileptic rats was used as control.Results The pharmacoresistant epileptic rats displayed degenerative and necrotic hippocampal neurons.The arrangement of hippocampal neurons was disordered,and the structural characteristics of the arrangement of the hippocampal neurons disappeared.The gray values of GABAA-positive neurons in the hippocampal tissues (141.15 ± 14.72) increased significantly compared with the pharmacosensitive epileptic rats (92.56 ± 5.17; t =3.380,P =0.006).Western blot method demonstrated that the band of GABAA became narrowed and thin.The relative quantity of GABAA in the hippocampal tissues (0.38 ± 0.08) decreased significantly as compared with the pharmacosensitive epileptic rats (0.88 ± 0.18).A significant difference was observed (t =5.420,P =0.002).Conclusions GABA receptor expression might be decreased in the hippocampal tissues of pharmacoresistant epileptic rats.It might play a certain role in the formation of pharnmacoresistant epilepsy.