1.A Scoring Method for Quantitative Assessment of Cardiovascular Health Status Based on Non-linear Parameters
Xia LI ; Jing BAI ; Xun JIN ; Zhiying REN
Space Medicine & Medical Engineering 2007;20(1):1-6
Objective To study a scoring method for assessing function status of cardiovascular system quantitatively. Methods First, exercise heart rate variability (EHRV) was obtained from the primary dynamic electrocardiogram (ECG) recorded during exercise testing. Then appropriate entropy, relative complexity, and other three parameters extracted from poincare dispersed-dot plot were extracted from the EHRV. Discriminant analysis was used to classify two extreme groups.Results Based on the values of two groups from the discriminant formula, a scoring formula was proposed and four ranks were divided according to different score domains. A novel scoring method was established. To validate the proposed scoring method, 60 middle-aged hypertensives, 50 elder subjects and 110 young healthy subjects were examined and scored. Conclusion Scores of 220 subjects are consistent with their real health status. The proposed scoring method reflects the status of the subject's cardiovascular system effectively.
2.Study on apoptosis and changes of cell cycle in ovarian cells induced by paclitaxel
Zhiying YU ; Liwen LI ; Jing DU ; Junxia XIA ; Jun LUO ; Qi LUO
Journal of Chinese Physician 2001;0(03):-
Objective To investigate whether paclitaxel can efficiently induce the apoptosis of ovarian cell HO-8910,and to study the relationship between the apoptosis of cells and the cell cycle.Methods With the treatment of paclitaxel with different concentrations and different time,the morphologic change of HO-8910 ovarian cells was observed using fluorescence microscopy and transmission electron microscopy(TEM),and the apoptosis of cells and the changes of cell cycle were determined by flow cytometry(FCM). Results The typical changes of HO-8910 cell apoptosis were observed by TEM and Fluorescence microscopy.With the treatment of paclitaxel,the HO-8910 ovarian cells were firstly arrested in G_2/M phase,and the typical ultrastructural changes of apoptosis were appeared only after the cells were apparently arrested in G_2/M phase.Conclusion Paclitaxel can induce the apoptosis of HO-8910 cells and the apoptosis is associated with the blockage of G_2/M phase in cell cycle.
3.Effect of lumbar puncture cerebrospinal fluid replacement on nuclear factor κB in cerebrospinal fluid and prognosis in patients with aneurismal subarachnoid hemorrhage after endovascular embolization
Bing BAO ; Zhiying CHEN ; Dandan TAN ; Xiangbin WU ; Zhongbin XIA ; Tao WU ; Hongbing NIE
International Journal of Cerebrovascular Diseases 2017;25(2):140-144
Objective To investigate the effect of early cerebrospinal fluid replacement on nuclear factor-κB (NF-κB) level and clinical outcomes in patients with aneurismal subarachnoid hemorrhage (aSAH) after endovascular embolization.Methods Patients with aSAH received aneurysm embolization were enrolled.They were divided into a cerebrospinal fluid replacement group and a non-cerebrospinal fluid replacement group according to the treatment scheme.All patients were treated with cerebral aneurysm coil embolization within 3 days after admission.The cerebrospinal fluid replacement group performed lumbar puncture cerebrospinal fluid replacement within 24 h after coil embolization,once every other day,20-30 ml of cerebrospinal fluid was replaced each time and 3 mg dexamethasone was injected intrathecally.The NF-κB levels in cerebrospinal fluid were detected at day 1,7 and 14 after the coil embolization.The primary outcome measures were the clinical outcomes determined by the modified Rankin scale (mRS) and the Glasgow outcome scale (GOS) at 3 months after onset.Good outcome was defined as mRS score 0-2 or GOS > 3.The secondary outcome measures included severe complications (hydrocephalus,cerebral vasospasm,cerebral infarction,and rebleeding) and death.Results A total of 81 patients with aSAH received aneurysm embolization were enrolled,including 42 in the cerebrospinal fluid replacement group and 39 in the non-cerebrospinal fluid replacement group.There was no significant differences in the baseline data between the cerebrospinal fluid replacement group and the non-cerebrospinal fluid replacement group (all P >0.05).The duration of neck stiffness in the cerebrospinal fluid replacement group was significantly shorter than that in the non-cerebrospinal fluid replacement group (11.3 ± 3.2 d vs.16.5 ± 3.5 d;t =6.985,P < 0.001).The cerebrospinal fluid NF-κB levels were progressively reduced at day 1,7 and 14 after coil embolization in the cerebrospinal fluid rephcement group and non-cerebrospinal fluid rephcement group (all P <0.05),but the ccerebrospinal fluid levels of NF-κB in the cerebrospinal fluid replacement group at each time point were significantly lower than those in the non-cerebrospinal fluid replacement group (all P < 0.01).The good outcome rates evaluated according to the mRS score (92.9% vs.56.4%;x2 =14.446,P < 0.001) and GOS score (97.6% vs.76.9%;x2 =8.004,P=0.005) in the cerebrospinal fluid replacement group at 3 months were significantly higher than those in the non-cerebrospinal fluid replacement group,and the incidence of cerebral vasospasm was significantly lower than that in the non-cerebrospinal fluid replacement group (14.3% vs.33.3%;x2 =4.086,P =0.043).Conelusiom Cerebrospinal fluid replacement therapy can reduce the incidence of cerebral vasospasm in patients with aSAH receiving aneurysm embolization and improve clinical outcomes.Its mechanism may be associated with the decrease of NF-κB level in cerebrospinal fluid.
4.Amperometric Choline Biosensor Based on Dispersion of Multi-walled Carbon Nanotubes in Poly(diallyldimethylammonium chloride) via Layer-by-Layer Assembly Technique
Lili CHEN ; Huicai WANG ; Xia QIN ; Xinsheng WANG ; Zixia ZHAO ; Zhiying MIAO ; Wei ZHAO ; Miaomiao SHAN ; Qiang CHEN
Chinese Journal of Analytical Chemistry 2010;38(3):337-341
Poly(diallyldimethylammonium chloride)(PDDA) was chosen to disperse multi-walled carbon nanotubes(MWCNTs) to prepare the stable PDDA-MWCNTs aqueous dispersion. Then, the positively charged PDDA-MWCNTs composite and negatively charged choline oxidase(ChOx) were employed to fabricate multilayer films on platinum(Pt) electrodes by layer-by-layer self-assembly technique, the anti-interferential film of Nafion was dropped at the end of the last multilayer films. The results showed that MWCNTs were evenly dispersed within the PDDA films and the multilayer films of (PDDA-MWCNTs)_n could improve the catalytic current response to choline significantly with the increased number of the multilayer films. The optimum assembly number was 6. The choline biosensor fabricated showed good linear correlation from 5×10~(-6)-2.5×10~(-4) mol/L with a detection limit of 2×10~(-6) mol/L(S/N=3), and the sensitivity was 21.97 mA/mol with a response time of 6.6 s, the RSD was less than 5%(n=3). Moreover, the biosensor exhibited an excellent anti-interferential property and a good stability.
5.Physical fitness of preschool children in Kunshan city
HAN Xia, FENG Pei, CHEN Lei, LU Ping, WU Bing, XIA Zhiying, NIU Xiaohu, XU Yong
Chinese Journal of School Health 2019;40(3):403-405
Objective:
To investigate current status and associated factors of preschool children’s physical fitness, in order to provide scientific basis for improving preschool children’s physical fitness.
Methods:
A total of 3 240 preschool children aged 3-6 years old in Kunshan city were selected through cluster sampling method. They were surveyed about physical fitness and influencing factors.
Results:
The number of excellence of preschool children’s physical fitness was 269, and the rate was 8.30 percent. The excellence rates of preschool children’s physical fitness in girls, high grade, non-residency in Jiangsu Province were higher(10.87%, 10.96%, 14.88%), and the excellence rate of preschool children’s physical fitness in premature group was lower(4.31%)(P<0.05). Further unconditioned logistic regression analysis found that girls, middle and high grade and non-residency in Jiangsu Province were the protective factors for the excellence of preschool children’s physical fitness, OR values were 1.96, 1.94, 2.45 and 1.87, respectively; premature was a risk factor for the excellence of preschool children’s physical fitness, OR value was 0.47.
Conclusion
Preschool children in Kunshan have poor physical fitness, especially in boys, low grade and premature groups. Education department and health department should work together to improve the preschool children’s physical fitness.
6.Clinical effect of voice therapy in the treatment of teachers' voice disorders patients combined subjective and objective assessment
Wenjun GUO ; Libing SUN ; Xia HE ; Wenyong YU ; Zhiying ZHENG ; Binquan WANG
Chinese Journal of Practical Nursing 2017;33(35):2751-2754
Objective To explore the curative effectiveness of comprehensive voice training methods on teachers' voice disorders patients by using subjective and objective assessment. Methods Forty-seven teachers' voice disorders patients suffering from voice symptoms without organic disease and complete follow-up data as the research object were treated with a three-month comprehensive voice training program. Training content included relieving laryngeal muscle tension, improving the throat vocal cord movement and reconstruction methods of pronunciation. The use of voice acoustic analysis and voice handicap index(VHI) were compared before and after training. Results The jitter and shimmer were significantly decreased after comprehensive voice training from 1.06(0.79,1.38)%and 2.71(2.16,3.24)%to 0.78 (0.59, 0.99)% and 1.64(1.03,2.45)%, the differences were significant (Z=3.249,-4.121, P<0.05). Maximum phonation time and dysphonia severity index were significantly increased obviously from (9.87 ± 2.61)s and-2.23±0.75 to (12.81±1.97)s and-0.43±1.65 respectively, the differences were significant (t=-6.057,-5.273, P<0.05). After the training, the VHI score of voice disorder index decreased from (37.41±4.96)points to (26.31± 4.29) points after the comprehensive voice training. In addition to emotional function, the difference was statistically significant(t=12.715, 5.881, 11.483, P<0.05). Conclusions Voice training can reduce the degree of voice disorders effectively, increase the power of the respiratory system, therefore improve the voice quality of teachers with voice disorders. The subjective and objective combination assessment can evaluate the quality of the patient′s voice more thoroughly and evaluate the clinical efficacy of voice training further.
7.Nursing experience of endoscopic retrograde cholangiopancreatography in biliary stone patients with diabetes
Yuan LIU ; Haiping XIA ; Zhiying LI
Journal of Clinical Medicine in Practice 2014;(6):29-31
Objective Ti investigate the pistiperative nursing strategies if endiscipic ret-rigrade chilangiipancreatigraphy(ERCP)in biliary stine patients with diabetes.Methods A ret-rispective analysis if nursing pricess after ERCP was carried iut in 18 biliary stine patients with diabetes.Bliid glucise cintrilling,nasibiliary nursing,pistiperative cimplicatiins,psychiligical nursing were analyzed in the research.Results Bliid glucise cintrilling if 18 patients was in giid cinditiin and patency rate if nasibiliary drainage was 100%.There were ni majir pistipera-tive cimplicatiins such as biliary tract hemirrhea,severe pancreatitis and intestinal perfiratiin dur-ing hispitalizatiin.Conclusion ERCP ciuld effectively cure biliary stine patients with diabetes, and giid pistiperative nursing measures may reduce the incidence if majir cimplicatiins.
8.Effect of Baicalein on Osteogenic Differentiation of MC3T3-E1 Cells and Its Bacteriostasis against Common Oral Bacteria
Yue WANG ; Fangchen LIN ; Qi SU ; Xia HUANG ; Zhiying ZHOU
Journal of Sun Yat-sen University(Medical Sciences) 2024;45(4):602-612
[Objective]To investigate the impact of varying concentrations of baicalein on the proliferation and biological responses of MC3T3-E1 cells,as well as the antibacterial efficacy of baicalein against prevalent oral bacteria,and to elucidate the underlying mechanisms.[Methods]MC3T3-E1 cells were exposed to different concentrations of baicalein(0,6,12,18,and 24 μmol/L)and cell viability was determined by using the CCK-8 assay.Alkaline phosphatase(ALP)activity of MC3T3-E1 cells following osteogenic induction was assessed.RT-PCR was used to examine the expression of RunX2,BMP2,and Osterix.After 24 hours of treatment,the antibacterial potential of baicalein against Escherichia coli,Staphylococcus Aureus and Streptococcus Sanguis was evaluated by using the K-B paper disk method.[Results]Baicalein exhibited a modest reduction in proliferation of MC3T3-E1 cells but without affecting their sustained proliferation.Baicalein at a concentration of 18 μmol/L enhanced ALP activity of MC3T3-E1 cells,upregulated BMP2 and Osterix expression,downregulated RunX2 expression,significantly inhibited the proliferation of Staphylococcus Aureus and Streptococcus Sanguis(P<0.05).[Conclusions]Baicalein at an optimal concentration(18 μmol/L)demonstrated a promotional effect on the osteogenic differentiation of MC3T3-E1 cells and effectively suppressed the proliferation of common oral bacteria,including Staphylococcus Aureus and Streptococcus Sanguis.
9.Nursing experience of endoscopic retrograde cholangiopancreatography in biliary stone patients with diabetes
Yuan LIU ; Haiping XIA ; Zhiying LI
Journal of Clinical Medicine in Practice 2014;(6):29-31
Objective Ti investigate the pistiperative nursing strategies if endiscipic ret-rigrade chilangiipancreatigraphy(ERCP)in biliary stine patients with diabetes.Methods A ret-rispective analysis if nursing pricess after ERCP was carried iut in 18 biliary stine patients with diabetes.Bliid glucise cintrilling,nasibiliary nursing,pistiperative cimplicatiins,psychiligical nursing were analyzed in the research.Results Bliid glucise cintrilling if 18 patients was in giid cinditiin and patency rate if nasibiliary drainage was 100%.There were ni majir pistipera-tive cimplicatiins such as biliary tract hemirrhea,severe pancreatitis and intestinal perfiratiin dur-ing hispitalizatiin.Conclusion ERCP ciuld effectively cure biliary stine patients with diabetes, and giid pistiperative nursing measures may reduce the incidence if majir cimplicatiins.
10.The correlation analysis between nutritional risk screening scores and the levels of malnutrition in primary hospitals
Xia ZHAO ; Zhiying TAO ; Liping SUN
China Modern Doctor 2024;62(27):61-63
Objective To analyze the correlation between the scores obtained according to nutritional risk screening 2002(NRS 2002)and malnutrition level diagnosed according to global leadership initiative on malnutrition(GLIM)in district level primary hospital.Methods A retrospective study was conducted involving 361 patients with positive nutritional risk screening(NRS 2002 score ≥3 points)admitted to General Hospital Medical Communities of Shaoxing Second Hospital from November 2023 to February 2024.The patients were diagnosed for malnutrition according to GLIM criteria,and those identified with malnutrition were further evaluated for the severity of malnutrition(moderate malnutrition or severe malnutrition).Statistical methods were employed to analyze the correlation between nutritional risk screening scores and the severity of malnutrition.Results Among 361 patients with positive nutritional risk screening,179 cases were diagnosed with no malnutrition,140 cases with moderate malnutrition,and 42 cases with severe malnutrition.Analysis using Kendall's tau-b coefficient revealed a strong positive correlation between nutritional risk screening(NRS 2002)scores and malnutrition levels by GLIM criteria(Kendall's tau-b>0.6,P<0.0001).The occurrence of malnutrition differed significantly between age groups(<70 years old and ≥70 years old)(P<0.05),there is no statistically significant difference in the incidence of malnutrition between different gender groups(P>0.05).Conclusion There was a strong positive correlation between higher nutritional risk screening scores(according to NRS 2002)and higher levels of malnutrition(according to GLIM)in the primary hospital.The prevalence of malnutrition was not related to gender,but those aged ≥ 70 years old had a higher prevalence of malnutrition compared to those aged<70 years old.