1.Consonant pronunciation in spastic dysarthria
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(11):827-829
Objective To research the consonant pronunciation of patients with spastic dysarthria as a result of cerebral palsy and supply a theoretical basis for their rehabilitation.Methods Twenty-eight cerebral palsy patients with spastic dysarthria were examined using a dysarthria examination scale developed by the China Rehabilitation Research Center.The whole process of the tests was recorded using Cool Edit recording software.Praat4 was used to evaluate their pronunciation according to the pronunciation criteria of “experimental phonology”.Their error rates on 21 consonants were counted and the characteristics of the articulation errors were summarized.Results According to the location of articulation,the inaccuracy rates on labials,dentals,apicals,blade-palatals,palatals and velars in the 28 patients were 21%,71%,53%,71%,54% and 36% respectively.Conclusions Patients with spastic dysarthria as a result of cerebral palsy have the most difficulty pronouncing dentals and blade-palatal consonants.They find labial consonants the easiest.
2.HPLC Fingerprint of Flavonoids from Bauhinia blakeana
China Pharmacy 2007;0(31):-
OBJECTIVE: To establish HPLC fingerprint of flavonoids from Bauhinia blakeana and to provide reference for harvest, application and quality evaluation of B. blakeana. METHODS: RP-HPLC method was used to determine the content of flavonoids from 10 batches of B. blakeana from different habitats and in different harvest periods with rutin and quercetin as control. The similarity was calculated using TCM fingerprint similarity evaluation system. The separation was performed on Hypersil ODS C18(250 mm?4.6 mm,5 ?m) column with mobile phase consisted of methanol-0.4% phosphoric acid solution (gradient elution) at flow rate of 0.7 mL?min-1 lasting for 40 min. The UV detection wavelength was set at 360 nm and column temperature was at 25℃. RESULTS: The results showed that 14 peaks were common. The similarity index of 10 batches B. blakeana samples were between 0.88 and 0.94. The results indicated chemical components were similar but content of the compounds was different. CONCLUSION: Established HPLC fingerprint of B. blakeana is stable, reliable and reproducible, which is valuable for harvest, application and quality evaluation of B. blakeana.
3.Design of an Incremental and Open Laboratory Automation System.
Chuanfen XIE ; Yueping CHEN ; Zhihong WANG
Chinese Journal of Medical Instrumentation 2015;39(4):268-271
Recent years have witnessed great development of TLA (Total Laboratory Automation) technology, however, its application hit the bottleneck of high cost and openess to other parties' instruments. Specifically speaking, the initial purchase of the medical devices requires large sum of money and the new system can hardly be compatible with existing equipment. This thesis proposes a new thought for system implementation that through incremental upgrade, the initial capital investment can be reduced and through open architecture and interfaces, the seamless connection of different devices can be achieved. This thesis elaborates on the standards that open architecture design should follow in aspect of mechanics, electro-communication and information interaction and the key technology points in system implementation.
Automation, Laboratory
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Computer Systems
4.Action of tiannianyin on delaying declined reproductive function and hypogonadism in subacute senile rats
Zhihong CHEN ; Congru QI ; Zhenjun YANG
Chinese Journal of Tissue Engineering Research 2005;9(27):244-245
BACKGROUND: Hypogonadism happens gradually with body aging. Traditional Chinese medicine views that deficiency of essential qi is the chief reason for body aging. OBJECTIVE: To observe the influence of tiannianyin, the Chinese herb , on serum testosterone, superoxide dismutase (SOD) activity in testicular tissue and expression of proliferating cell nuclear antigen of spermatogenic cells in testes in subacute senile rats induced by D-galactose. DESIGN: Randomized controlled experiment. SETTING: Basic Medicine Institute of Chengde Medical College. MATERIALS: The experiment was perlormed in Basic Medicine Institute of Chengde Medical College from April to July 2003, in which, 40 adult male SD rats were employed and randomized into 4 groups, 10 rats in each .In normal group, no any management was done. In model group, medication group and negative control, D-galactosie was used for abdominal injection continuously at 200 mg (kg·d), once a day, totally for 40 days to prepare the model of subacute senile animal. In model group, no any management was done after modeling success. In medication group, gastric infusion with tiannianyin. Tiannianyin was administrated everyday after modeling success, once a day, totally for 30 days. In negative control, gastric infusion with physiological saline of same dosage was administrated after modeling success for same days. METHODS: Enzyme linked immunosorbent assay (ELISA) was used for determination of serum testosterone content, xanthine oxidase assay was used for determination of SOD activity in testicular tissue and immunohistochemical method was used to observe expression of proliferating cell nuclear antigen in rats of every group. MAIN OUTCOME MEASURES: ① serum testosterone content; ② SOD activity in testicular tissue; ③ expression of proliferating cell nuclear antigen of spermatogenic cells. RESULTS: Forty rats all entered result analysis. ① Serum testosterone content: That in model group was lower than normal group(P < 0.05), and that in medication group was higher than model group(P < 0.05). ② SOD activity in testicular tissue: That in model group was lower remarkably than normal group(P < 0.01), and that in medication group was higher remarkably than model group(P < 0.01). ③ Expression of proliferating cell nuclear antigen of spermatogenic cells: That in model group was lower than normal group(P < 0.05), and that in medication group was higher remarkably than model group(P < 0.05). CONCLUSION: Tiannianyin delays degeneration of reproductive function and aging of certain degree.
5.Intervention of gonad function with tian nian yin in acute senile rat model
Congru QI ; Zhihong CHEN ; Songhe YANG
Chinese Journal of Tissue Engineering Research 2005;9(27):242-243
BACKGROUND: In follow of the gradual decrease of senile gonad function in the body, traditional Chinese medicine views that deficiency of essential qi is the chief reason of body senility. OBJECTIVE: To observe the effects of tian nian yin on serum testosterone content, superoxide dismutase activity in testicular tissue and apoptosis of testicular seminiferous cell in subacute senile rats. DESIGN: Randomized controlled experiment. SETTING: Human Anatomy Department of Chengde Medical College. MATERIALS: The experiment was performed in Institute of Basic Medicine of Chengde Medical College from April to July 2003, in which,40 SD male rats were employed and randomized into 4 groups, 10 rats in each group. In model group, medicinal group and the control, D-galactose was injected 200 mg/(kg·d) to prepare subacute senile animal model, once a day, continuously for 40 days. No any management was given in model group after modeling success. In medicinal group, gastric infusion with tian nian yin [composed of zhi heshouwu (Radix Polygoni Mutiflori Preparatea),huainiuxi (Radix Achyranthis Bidentatae), roucongrong (Herba Cistanchis),fuling (Poria), danshen (Radix Salviae Miltiorrhizae) and yinyanghuo (Herba Epimedii), it was decocted till 1.5 g/mL with raw herbs contained] was administrated once a day, totally for 30 days after modeling success. In the control, gastric infusion was administrated with physiological saline of same usage as the medicinal group after modeling success. INTERVENTIONS: In every group, enzyme linked immunosorbent assay (ELISA) was used to determine testosterone content in serum. Xanthine oxidase assay (XOD) was used to determine superoxide dismutase activity in testicular tissue and immunohistochemical method (IHC) was used to observe apoptosis of testicular seminiferous cell. MAIN OUTCOME MEASURES: ① Testosterone content in serum. ②Superoxide dismutase activity in testicular tissue. ③ Apoptosis of testicular seminiferous cell RESULTS: Forty rats all entered result analysis. ① Testosterone content in serum: Testosterone content in model group was lower than normal group [(0.52±0.15) μg/L, (1.26 0.32) μg/L, (t=3.004, P < 0.05)], and that in medicinal group was higher than model group [(1.16±0.32) μg/L,(0.52 0.15) μg/L, (t=2.321, P < 0.05)]. ② Superoxide dismutase activity in testicular tissue: Superoxide dismutase activity in model group was lower remarkably than the normal group [(107.22±9.33) kNU/g, (147.73±11.90) kNU/g,(t=13.339, P < 0.01)], and that in medicinal group was higher remarkably than model group [(141.05±14.57) kNU/g, (107.22±9.33) kNU/g, (t=9.970,P < 0.01)]. ③ Apoptosis of testicular seminiferous cell: Percentage of apoptotic seniniferous tubule and apoptotic rate of positive cell in model group were higher remarkably thannormal group respectively [(53.95 ±2.02)%compared with (34.21±2.10)%, (8.67±0.80)% compared with (3.86±0.52)%,(x2=7.9, P < 0.01, x2=5.01, P < 0.05)], and those in medicinal group were lower remarkably than model group[(35.33±2.18)% compared with (53.95±2.02)%, (4.68±0.74)% compared with (8.67±0.80)%, (x2=7.02, P < 0.01, x2=3.96, P < 0.05)]. CONCLUSION: The apoptosis of testicular seminiferous cell was increased in senile modelgroup. Tian nian yin in gastric infusion decreased apoptotic rate of positive cell. It is explained that tian nian yin eliminates surplus oxygenic free radical, decreases apoptosis and improves seminiferous function in animal model.
6.The impact of management program for children with diabetes in China on the glycemic control of type 1 diabetic mellitus children and factors associated with glycemic control
Liwei SUN ; Ming LI ; Zhihong CHEN
Chinese Journal of Applied Clinical Pediatrics 2016;31(8):584-587
Objective To compare the glycemic control of different management approaches in type 1 diabetic mellitus (T1 DM) children,and to evaluate the influence factors associated with glycemic control.Methods This survey included 68 T1DM children from January 2012 to December 2014 in the Affiliated Hospital of Qingdao University of more than 1 year management.Hemoglobin A1c (HbA1c) levels were detected to assess glycemic control.Twenty-three T1DM children who participated in the World Diabetes Foundation(WDF) management program (group A) were compared with 45 T1DM children who were managed by themselves (group B).The clinical data were analyzed to explore the correlations with glycemic control.Results The HbA1c of 68 children was (8.86 ± 2.00)%,and only 21 cases (30.9%) had optimal HbAlc (HbAlc < 7.5%).The level of HbA1 c of group A (7.60 ± 1.57)% was significantly lower than that of group B[(9.40 ± 1.91) %] (t =-4.045,P =0.001).Group A had less fluctuation in blood glucose than group B,which the duration more than 3 years.Duration (F =2.277,P =0.004),frequency of self-monitoring blood glucose (F =9.375,P =0.001),diabetic education (F =3.276,P =0.002),and diabetic diet (t =-2.046,P =0.025) were associated with glycemic control.Conclusions The glycemic control of T1 DM children at the Affiliated Hospital of Qingdao University was at the medium level,most of them haven't reached the target levels.The WDF management program could significantly and continuously monitor the glycemic level.Diabetic education and more frequent self-monitoring blood glucose and diabetic diet are associated with better glycemic control.
7.Comparison of improvement of two kinds of preventative administration of inter-leukin-27 on airway inflammation and impaired phosphorylation of STAT1 in asthma mice
Xiaoqiong SU ; Zhihong CHEN ; Xiangdong WANG
Chinese Journal of Immunology 2016;32(7):1022-1027
Objective:Animal models were set up to explore the best preventative intra-nasal administration of interleukin 27 (IL-27)to diminish allergic airway inflammation of asthma and the related molecular mechanisms. Methods:Ninety-six female C57/6J mice were randomly divided into four groups,a group of the control group,a group of asthma group,and two groups of the prevention group. Based on being sensitizing and challenging with Ovalbumin ( OVA ) in the asthma model, two kinds of IL-27 administration asthma animal models were set up,one of which was low-dose-multiple preventive administration before OVA sensitization,one was low-dose-multiple preventive administration after OVA sensitization but before OVA challenge. Sacrificed the mice after challenging and analyzed the IL-5 and IL-13 levels in supernatant of Broncho alveolar lavage fluid( BAL) using ELISA;and HE stain and inflammation score were done for the lungs. Sacrificed the mice before challenging and used the lungs to analyze the level of total signal transducer and activator of transcription-1(STAT1) protein and phos-STAT1 based on the method of Western blot. Results: In low-dose-multiple administration before sensitization preventions group,IL-27 inhibits the secretion of IL-5 and IL-13(P<0. 05) and inflammation around bronchial and vascular obviously, and the inflammation score was lower than asthma group ( P<0. 05 ) , while another group has no significant effects ( P>0. 05 ) . The phosphorylation of STAT1 was impaired in mice after OVA sensitization, and preventative administration of IL-27 before sensitization could reverse the impairment of STAT1, whereas another group had no obviously changes. Conclusion:Preventative administration of IL-27 before sensitization can attenuate the airway inflammation in the mouse asthma model via reversing the phosphorylation of STAT1,while the mice which has been sensitized resisting the inhibition of IL-27 due to the impairment of the phosphorylation of STAT1 and already committed Th2-CD4+T cells existed in sensitization-mice airway might be the reason for such IL-27 resistance.
8.Traditional Medical Ethics and Cultivating the Core Socialist Values
Changlin DU ; Zhihong CHEN ; Yanqing ZHANG
Chinese Medical Ethics 2015;(5):782-785
Combining with traditional medical ethics for medical students to carry out the cultivation of core so -cialist values is a specific and realistic path .Virtue ethics features of traditional medical ethics are good for medical students to internalize core socialist values .Normative characteristics of traditional medical ethics are good for med-ical students to be cultivated of social responsibility , sense of responsibility to life , dedication and integrity aware-ness .By demonstrating the role of ethics and ancient doctors′model in classic literature , students can not only un-derstand the rich connotations of traditional ethics of traditional culture , but also get the cultivation and practice of core socialist values .
9.The homing of transplanted bone marrow mesenchymal stem cells to the thymus
Zhihong WANG ; Weimin CHEN ; Kunyuan GUO
Chinese Journal of Tissue Engineering Research 2016;20(10):1439-1445
BACKGROUND:Bone marrow mesenchymal stem cels have low immunogenicity and can induce immune tolerance. At present, the mechanism of immune regulation of bone marrow mesenchymal stem cels is not completely understood. It has been rarely reported whether the bone marrow mesenchymal stem cels can migrate to the thymus after transplantation.
OBJECTIVE:To observe the distribution and survival of bone marrow mesenchymal stem cels in the thymus of aging rats after transplantation.
METHODS: Bone marrow mesenchymal stem cels cultured in vitrowere transfected by adenovirus vectors expressing green fluorescent protein. Transfected bone marrow mesenchymal stem cels were injected into the portal vein of aging rats. At days 3, 7, 14, 21 after transplantation, the survival of bone marrow mesenchymal stem cels homing to the thymus was observed under fluorescence microscope. At day 3 after transplantation, thymus tissues were taken and stained with hematoxylin-eosin for pathological observation.
RESULTS AND CONCLUSION:Green fluorescent protein-labeled bone marrow mesenchymal stem cels had a strong green fluorescence at days 3 and 7 after transplantation, and the cel contour was clear. There was no significant difference in the mean absorbance values at days 3 and 7 (P> 0.05). Expression of green fluorescent protein was weakened significantly at days 14 and 21 compared with that at day 3 (P < 0.05). At 3 days after transplantation, the transplanted bone marrow mesenchymal stem cels were clearly visible in the thymus, and acute rejection was not observed. The results show that bone marrow mesenchymal stem cels can migrate to the damaged thymus tissue through the blood circulation, and can survive at least 1 week.
10.Neurological recovery effect of blood activating and phlegm removing decoction in treatment of the patients with hypertensive cerebral hemorrhage
Shanshan JIANG ; Zhihong FU ; Lin CHEN
Chinese Journal of Primary Medicine and Pharmacy 2016;23(8):1252-1255
Objective To investigate neurological recovery effect and mechanisms of blood activating and phlegm removing decoction in the treatment of patients with hypertensive cerebral hemorrhage.Methods 68 patients with hypertensive cerebral hemorrhage in our hospital were divided into two groups.34 patients of the control group were given conventional western medicine,and 34 patients of the observation group were taken conventional western medicine combined with blood activating and phlegm removing decoction.The clinical outcomes, hematoma volume change and neurological recovery were compared,and analyzed its mechanism of action.Results The effective rate of the observation group(94.12%) was significantly higher than 73.53%of the control group (χ2 =5.31,P<0.05). After 7d,14d,21d treatment,NIHSS scores of the observation group [(12.87 ±1.43) points,(8.55 ±1.11) points and (5.67 ±0.76) points] were significantly lower than those of the control group [(20.43 ±2.57) points, (17.66 ±2.08)points,(14.54 ±1.44)points],and the differences were statistically significant (t=14.99,22.53, 31.76,all P<0.05).After treatment,hematoma volume of the observation group[(6.44 ±0.54)mL]was significant-ly lower than before treatment[(16.30 ±1.90)mL]and after treatment in the control group [(12.11 ±1.44)mL] (t=29.11,21.50,all P<0.05).After treatment,ALD score of the observation group [(66.34 ±5.22)points] was significantly lower than before treatment[(27.53 ±2.20)points]and after treatment in the control group[(47.55 ± 3.33)points],and the differences were statistically significant(t=39.95,17.70,all P<0.05).Conclusion The effect of blood activating and phlegm removing decoction in the treatment of patients with hypertensive cerebral hemor-rhage is significant,can significantly improve neurologic impairment and daily living skills,has no obvious conflict of interest and high application value,worthy of promotion and application.