Objective To establish an equation between canine and other permanent teeth,and probe a new method to predict the sum of the mesiodistal diameters of unerupted permanent canines.Methods Samples consisted of 118 dental casts were obtained from Chinese patients(50 males,68 females,respectively).Mesiodistal tooth diameters were measured by a vernier caliper.GAS was used to establish the equation between canine and other permanent teeth,and compared with stepwise regression analysis.Those were modelling samples that optimized equations coefficient(112 samples).Others were inspection samples(6 samples).Results The equation between canine and other permanent teeth was established.MU=0.0511U1+0.2164U2+0.2780U4+0.0407U5+0.2853U6+0.8321①;ML=0.2998U1+0.1294U2+0.3912U4+0.0088U5+0.0791U6+0.9839②;FU=0.1419U1+0.1741U2+0.3258U4+0.0412U5+0.093U6+1.7355③;FL=0.2796U1+0.3750U2+0.2968U4+0.0268U5+0.0043U6+0.6030④.Compared with stepwise regression analysis,the mean error of precision by GAS was less(P

The content of zinc and copper in the hair of 321 persons was detected by an atomic absorption spectropolarimeter. The subjects included young healthy group (35 men, 30 women), middle aged healthy group (72 men, 18 women), arteriosclerosis group (81 men, 20 women), cerebral embolism group (23 men, 8 women) and its control group (23 men, 8 women). The ratio of zinc to copper in the hair of the persons suffered from cerebral embolism was obviously higher than that of healthy controls. By comparing the function of the susceptible factors in cerebral embolism with Feisher's determination analysis method, diastolic pressure was found to be 75.02 percent, the ratio of zinc to copper 16.32 percent. The diagnostic coincidence was found to be above 82 percent.

Objective:To study the detection value of platelet activation indexes and platelet parameters in patients with hepatitis B-induced cirrhosis.Methods:40 patients with hepatitis B-induced cirrhosis in our hospital from November 2015 to August 2016 were selected as the observation group.40 healthy subjects went through physical examination during the same period were chosen as the control group.The platelet activation indexes and platelet parameters of subjects with same age in two groups were detected and compared.The detection results of the two items in patients with different stages of hepatitis B-induced cirrhosis were compared,too.Results:The PLT of observation group was lower than that of control group,while the other platelet parameters and platelet activation indexes were all higher than those of control group.The detection results of two items in patients with different stages of hepatitis B-induced cirrhosis were with significant differences,all P＜0.05.Conclusion:The platelet activation indexes and platelet parameters in patients with hepatitis B-induced cirrhosis are obviously abnormally expressed.There are significant differences among the detection results in patients with different stages.Therefore,surveillance of those indexes in patients with hepatitis B-induced cirrhosis should be strengthened.

Objective To detect the global level of histone 4 lysine 20 (H4K20) methylation and its relation with DNA damage-repair in peripheral blood cell of arsenic-exposed residents in the coal-contaminated arsenism areas in Guizhou,in order to provide a basis to deepen the interpretation of the role of arsenic in inhibiting DNA damage-repair.Methods Jiaole village in coal-burning-borne arsenism areas in Xingren County of Guizhou was selected as the survey point,and 115 cases of arsenic-exposed residents were selected as the arsenic exposed group on the basis of physical examination.Moreover,53 residents from one village of non-epidemic area neighboring the diseased area were selected as controls.Hair and peripheral blood samples of these subjects were collected,and the histone protein was extracted from the lymphocytes separated from blood samples.The hair samples were digested with microwave digestion instrument,and the hair arsenic content was tested via the inductively coupled plasma-mass spectrometry (ICP-MS) method;the level of H4K20 1,2,3 methylation (H4K20me2,me2,me3) in peripheral blood cell was tested by enzyme-linked immunosorbent assay (ELISA);DNA damage of peripheral blood cell was measured by single cell gel electrophoresis (SCGE).Results The testing results of hair arsenic contents showed that the arsenic levels of hair in arsenic exposed group [0.30 (0.19-0.46)μg/g] were significantly higher than those of control group [0.12 (0.08-0.18) μg/g,F=11.968,P ＜ 0.05].Compared with the control (0.44 ± 0.14,0.99 ± 0.41,1.06 ± 0.33),the level of H4K20me1 (0.60 ± 0.29) in arsenic exposed group was higher (F =2.513,P ＜ 0.05),H4K20me2 (0.75 ± 0.26) was lower (F =4.707,P ＜ 0.05),and H4K20me3 (1.20 ± 0.62) was of no significant difference (F =0.582,P ＞ 0.05).The detecting results of DNA damage of the lymphocytes separated from peripheral blood showed a statistically significant increase (F =9.307,9.457,all P ＜ 0.05) in TailDNA％ and Olivetailmoment in arsenic exposed group [Median (M):10.75,11.69]compared with those of control group (M:2.12,1.16).The correlation analysis indicated that the arsenic levels of hair of subjects were positively correlated with H4K20me1 (r =0.214,P ＜ 0.05) and inversely with H4K20me2 (r =-0.224,P ＜ 0.05);H4K20me1 was positively associated with TailDNA％ (r =0.383,P ＜ 0.05) and Olivetailmoment (r =0.380,P ＜ 0.05);H4K20me2 was inversely associated with TailDNA％ (r =-0.290,P ＜ 0.05) and Olivetailmoment (r =-0.298,P ＜ 0.05).Conclusion H4K20 methylated modification makes a response to arsenic exposure of human body,the alteration of H4K20mel/me2 may participate in regulating DNA damage-repair induced by arsenic in vivo.

Objective To better understand the clinical characteristics of Familial Idiopathic Basal Ganglia Calcifi?cation (FIBGC), including at the perspective of hereditary pattern, clinical test results, onset age, clinical heterogeneity and the volume of basal ganglia calcification (VBGC). Method 8 Eight FIBGC families were collected and draw family pedigrees were draw. Analysis of was conducted on the patient's clinical test results, head CT and MRI changes, onset ag?es, relationship of clinical manifestations with VBGC. Results No significant difference was found in serum calcium, alu?minum, arsenic, cobalt, magnesium, phosphorus, iron, parathyroid hormone and calcitonin concentration between the fam?ily members of patients and healthy controls (P>0.05). Family members from 8 FIBGC families including the two with consanguineous marriage manifested autosomal dominant heredity. The severity of , symptomatic s was correlated with VBGCpatients showed the same clinical manifestations in the dyskinesia family. The psychiatric symptoms was not asso? ciated with VBGC whereas patients with dyskinesia had a large VBGC. There was a significant difference in onset age be?tween patients with psychiatric symptoms and those with dyskinesia. P.atients with dyskinesia suffer larger VBGC, and is characterized by Patients with dyskinesia had relatively later onset age (43.95 ± 2.47 y) whereas those with. psychiatric symptoms hadsymptomatic patients with early onset age (31.32±10.16y). The comparison of the onset age (43.954±2.473 vs. 31.319±10.156 y, t=4.438, P=0.001) and VBGC (1.748±0.622 vs. 0.392±0.276 cm3, t=2.518, P=0.028) with symptom?atic patients between dyskinesia and psychogenic families was significant. Conclusions Eight FIBGC families manifested autosomal dominant heredity. Patients with dyskinesia suffer have a larger VBGC and are associated with a, and is char?acterized by relatively later onset age. In contrast, patients with psychiatric symptomspsychogeny is not related withhave a the small VBGC and showedand their age of onset is young. earlier onset age.

ObjectiveTo analysis the clinic outcome(similarities & differences, indication and caution)of repairing fingertip soft tissue defect with two kind of reverse digital artery island flaps with the palmar cutaneous branch of proper digital nerve.MethodsFrom January 2000 to Auguest 2008, all 500cases (514 fingers) were repaired with reverse homodigital artery island flap (263 fingers of 250 cases) and reverse cross finger digital artery island flap(251 fingers of 250 cases).All cases were followed up from 3-8years,compared with flap range,finger extension,sensory rehabilitation,et al. ResultsAll flaps (A & Bgroup) of 500 cases (514 fingers) survived.According to flap range,cross finger flap was better than homodigital flap (P ＜ 0.05); according to finger extension,homodigital flap better than cross finger flap (P ＜0.05); according to sensory rehabilitation,homodigital flap little better than cross finger flap(P ＜ 0.05); according to long-term follow-up, all had no obviously different (P ＞ 0.05).ConclusionHomodigital flap can cover distal soft tissue defect less than 2.0 cm× 2.5 cm, cross finger flap is a better choice for more than 2.0cm×3.0cm of distal soft tissue defect. According to the flap cover area, cross finger flap is first choice,and to finger extension & sensory rehabilitation,homodigital flap is first choice; accoding to finger movements,two kinds of flaps are all good choice.

China ; epidemiology ; Humans ; Occupational Diseases ; diagnosis ; Occupational Health ; standards

As the transportation of O2 and CO2 inside human body is an integrated aspect of Qi-blood transportation, a hemodynamic model is established based on the analysis of the respiratory and circulation system. The results of such model show that the abnormality of the circulatory and respiratory parameters always lead to a reduction of Po2 (O2 pressure) in tissue fluid, and then a Lung Qi-Deficiency Syndrome (QDS). This model can be used to quantitatively explain, to some extent, the physiological phenomena of Lung QDS, and could combine all the discoveries of in clinical researches, on Lung QDS. The measurement of Po2 in tissue fluid as an index to analyze Lung QDS is in accordance with TCM and TMM (the theory of modern medicine). This model may provide a new approach in clinical research of Lung QDS.
Hemodynamics ; Lung Diseases ; physiopathology ; Medicine, Chinese Traditional ; Models, Biological ; Qi ; Respiratory Mechanics

Cardiac deficiency of qi(vital energy) is one of the main syndromes in terms of TCM (Traditional Chinese Medicine). Based on our analysis of blood-tissue fluid circulation, we set up a hemodynamics model describing cardiac deficiency of qi. The model's theoretical results can reflect the manifestations of cardiac deficiency of qi, and are identical to those of clinical experimental discoveries, therefore it has substantiated our theory-cell's abnormal physiological function caused by undernourishment of tissue fluid is the reason of qi-deficiency.
Animals ; Cardiovascular Diseases ; physiopathology ; Hemodynamics ; physiology ; Humans ; Medicine, Chinese Traditional ; Models, Cardiovascular ; Qi ; Rabbits

Objective To investigate the characteristics of multimodal MRI of breast cancer with different molecular subtypes and the correlation between each molecular type and MRI findings. Methods Multimodality MRI date of 87 patients with breast cancer confirmed by pathology were retrospectively analyzed. According to the expression of estrogen receptors(ER),progesterone receptors(PR)and human epidermal growth factor receptor-2 (HER-2),the tumors were classified into triple-negative breast cancer,HER-2 overexpression,Luminal A and Lu-minal B subtypes. The MRI features of breast cancers of different molecular subtypes were compared. Results Among the 87 cases of breast cancer,luminal type A accounted for 29.9%(26/87),luminal type B accounted for 36.8%(32/87),HER-2 type accounted for 19.5%(17/87),and triple-negative type accounted for 13.8%(12/87). The average ADC value is 0.97 × 10-3 mm2/s;those whose irregular or edge burr like mass were more often Lu-minal type MRI,triple-negative breast cancer showed the edge smooth,clear boundary,annular enhancement, more easily showed enhanced mode of TIC type Ⅲ. The mean ADC values of type Luminal and HER-2 over-expres-sion were lower than the mean ADC values of the triple-negative type. Conclusion The different molecular sub-types of breast cancer MRI morphologic and hemodynamic characteristics and the value of ADC has certain charac-teristics. The MRI features of breast cancer can be predicted to analyze the molecular typing,providing a reference for clinical treatment.