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1.
Chinese Journal of Endemiology ; (12): 211-214, 2021.
Article in Chinese | WPRIM | ID: wpr-883695

ABSTRACT

Objective:To explore the relationship between dental fluorosis and serum chemical elements in children after water modification.Methods:Using the method of stratified sampling, according to the monitoring data of the Xi'an Center for Disease Control and Prevention in the past 20 years, the drinking-water-borne fluorosis areas in Xi'an City were changed according to the water-improvement period of 1-, 5-, 10- and ≥15 years, and 2 villages in each layer were selected as the survey sites. Each survey site selected school-age children aged 7 to 13 years old as the survey subjects to detect the prevalence of dental fluorosis; and blood samples were collected to detect 14 chemical elements contents in the serum [calcium (Ca), iron (Fe), magnesium (Mg), copper (Cu), zinc (Zn), iodine (I), selenium (Se), lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), fluorine (F), mercury (Hg), nickel (Ni)]. The differences of chemical element contents in children with different water improvement years and different dental fluorosis conditions were analyzed.Results:The prevalence of dental fluorosis of children were 51.40% (55/107), 16.92% (11/65), 16.67% (17/102) and 5.08% (6/118) in the villages with different water improvement period, the difference was statistically significant (χ 2 = 74.444, P < 0.05). Serum levels of Ca, Fe, Mg, Cu, Zn, I, Se, Pb, As, Cr, F and Ni in children of different water improvement period were compared, the difference were statistically significant ( P < 0.05). Levels of Fe, Zn and Ni in dental fluorosis patients were lower than those in normal children ( P < 0.05), and the serum fluoride level was higher than that of normal children ( P < 0.05). There were no significant differences in the contents of other chemical elements levels between children with dental fluorosis and normal children ( P > 0.05). Conclusions:The detection rate of dental fluorosis in children in ward villages whose water has been improved for more than 15 years is the lowest, and the detection rate of children with dental fluorosis can be reduced by improving water to reduce fluoride. Children in the drinking-water-borne fluorosis areas are deficient in some trace element.

2.
Article in Chinese | WPRIM | ID: wpr-883659

ABSTRACT

Objective:To evaluate the effect of different water-improving methods on dental fluorosis of children aged 8 to 12 in drinking-water-borne fluorosis areas in Xi'an City, and provide basis for making fine prevention and control measures.Methods:In 2018, 50 drinking-water-borne fluorosis villages in Xi'an City with water improvement time from 2011 to 2013 were selected as survey sites. The condition and the way of water improvement were surveyed, water fluoride content was determined and the prevalence of dental fluorosis in children aged 8 to 12 was examined, and the rates of dental fluorosis were compared before and after the water improvement in the 50 villages.Results:The water-improving projects were in normal operation in 50 villages. The medians of water fluoride content were 0.31, 0.88 and 1.14 mg/L in villages with municipal water supply, low fluorine well and defluoridation treatment water supply (the villages of different water-improvement methods were 12, 24 and 14, respectively), the differences were statistically significant ( H = 75.54, P < 0.01). The qualification rates of water fluoride in villages with different water-improvement methods were 100.00% (12/12), 79.17% (19/24) and 57.14% (8/14), and the difference was statistically significant (χ 2 = 6.95, P < 0.05). The detection rate of dental fluorosis was 43.17% (218/505) in the 11 villages with excessive water fluoride content, and the detection rate was 20.77% (331/1 594) in the 39 villages with qualified water fluoride content, the difference was statistically significant (χ 2 = 99.66, P < 0.01). After water improvement, the total detection rate of dental fluorosis (26.16%, 549/2 099) in the 50 villages was lower than that before water improvement (41.66%, 959/2 302), the difference was statistically significant (χ 2 = 117.17, P < 0.01). The detection rates of dental fluorosis were reduced after the water improvement in villages with municipal water supply and low fluorine well, the differences were statistically significant (χ 2 = 74.37, 69.36, P < 0.01). The detection rate was declined after water improvement in villages with defluoridation treatment water supply, but the difference was not significant (χ 2 = 0.78, P > 0.05). There was a statistically significant difference in the detection rate of dental fluorosis among children in villages with different water-improvement methods (χ 2 = 72.79, P < 0.01). The detection rate of dental fluorosis in villages with defluoridation treatment water supply [39.53% (200/506)] was higher than that in villages with municipal water supply [17.97% (133/740)] and low fluorine well [25.32% (216/853)], the differences were statistically significant ( P < 0.017); the detection rate of dental fluorosis in villages with municipal water supply was lower than that in villages with low fluorine well ( P < 0.017). Conclusions:The dental fluorosis of children's has been effectively controlled in the villages after water improvement in Xi'an City. The fluoride content in the water and the detection rate of dental fluorosis in children in some endemic areas are still high. It is necessary to further improve the water quality or consolidate the improvement effect as soon as possible.

3.
Article in Chinese | WPRIM | ID: wpr-905152

ABSTRACT

Objective:To develop a patient-reported outcomes (PRO) scale for post-stroke aphasia based on the Traditional Chinese Medicine (TCM) holism. Methods:Referring to the TCM holism, the theoretical model was established following the standard process for the development of the PRO scale. An item pool was established and optimized with case review, patient interview, expert questionnaire survey and consensus conference. The PRO scale was established finally. Results:A pool of post-stroke aphasia items based on the holistic view of TCM was constructed in the physical, psychological and social model. The Expert Comment Form for the PRO Scale for Aphasia after Stroke was formed after sorting out the item pool. After expert surveys and meeting discussion, 40 items were finally selected to form the first version of Patient-reported Outcomes Scale for Post-stroke Aphasia-TCM. Conclusion:The first version of Patient-reported Outcomes Scale for Post-stroke Aphasia-TCM has been developed based on the TCM holism and the concept of PRO, which can be evaluated clinically.

4.
Chinese Journal of Endemiology ; (12): 892-896, 2020.
Article in Chinese | WPRIM | ID: wpr-866228

ABSTRACT

Objective:To analyze the thyroid health status of residents in different water iodine areas in Xi'an City and understand the iodine nutritional level of the population.Methods:Using the stratified cluster sampling method, the towns in Xi'an City were divided into 3 levels of < 10, 10-100, and > 100 μg/L according to the median of water iodine of 2017. One street (township) was selected from each level, two communities (natural villages) were selected from each street (township), and 100 households were selected from each community (natural village) to carry out the survey. One drinking water sample was collected from each household for determination of water iodine content. Residents over 18 years old were selected as the subjects of the survey, and their urine iodine content test and thyroid B-ultrasound examination were carried out.Results:A total of 343, 227, 226 water samples were collected in 3 regions with water iodine content, and the median water iodine was 4.14, 38.95, 124.15 μg/L, respectively. A total of 1 308 people were investigated. The detection rate of abnormal thyroid morphology was 9.86% (129/1 308), the detection rate of abnormal echo was 10.86% (142/1 308), and the detection rate of thyroid space-occupancy was 33.94% (444/1 308). The detection rate of nodules was 26.22% (343/1 308). The detection rates of thyroid abnormal echo, space-occupying, and nodules in women were higher than those in men[11.75% (120/1 021) vs 7.67%(22/287), 35.85% (366/1 021) vs 27.18% (78/287), 27.82% (284/1 021) vs 20.56% (59/287), χ 2=3.868, 7.509, 6.101, P < 0.05]. The differences of detection rates of thyroid abnormal echo, space-occupying, and nodules were statistically significant in different age groups (χ 2=11.223, 68.032, 64.543, P < 0.05); the detection rate of thyroid abnormal echo was different in different water iodine areas (χ 2=6.297, P < 0.05). The detection rate of multiple thyroid nodules in women was higher than that in men [11.75% (120/1 021) vs 7.32% (21/287), χ 2=4.584, P < 0.05]; the detection rates of single nodules, multiple nodules, nodule diameter ≤1 cm and nodule diameter > 1 cm were different in different age groups (χ 2=26.010, 31.807, 22.859, 10.392, P < 0.05); the detection rate of thyroid nodule diameter > 1 cm in water iodine < 10 μg/L area was higher than that in water iodine 10-100 and > 100 μg/L areas ( P < 0.05). A total of 755 urine samples were collected, and the median urine iodine was 217.00 μg/L, there were satistically signficant differences in urine iodine levels among residents in different water iodine areas( H=93.806, P < 0.05). Conclusions:The detection rate of thyroid diseases in Xi'an City is relatively high, and the adult iodine nutrition is at a super-suitable level. The detection rate of thyroid nodules increases with age, women are higher than men, so follow-up and early diagnosis and treatment should be strengthened.

5.
Article in Chinese | WPRIM | ID: wpr-866061

ABSTRACT

Objective:To assess the implementation of control measures and dental fluorosis of children in drinking-water-borne endemic fluorosis areas in Xi'an City, and to evaluate the implementation effects of the prevention and control measures.Methods:All drinking-water-borne endemic fluorosis villages in Xi'an were selected as the investigation sites. The progress and running condition of all water-improved projects were investigated, fluoride concentration in all the water-improved projects and tap water were tested. "Standard Test Method for Drinking Water" (GB/T 5750.5-2006) was used to test the water fluoride. A cross-sectional analytical study was conducted on school children aged 8 - 12 years old, the dental fluorosis was determined according to "Diagnosis of Dental Fluorosis" (WS/T 208-2011).Results:There were 273 drinking-water-borne endemic fluorosis villages, the rate of water improved villages was 91.58% (250/273), and all of the water-improved projects were operating normally (100.00%, 196/196). The rate of water-improved projects with qualified water fluoride was 88.27% (173/196), 237 villages had fluoride safe drinking water and the qualified rate was 86.81% (237/273). The median of water fluoride in the 250 villages with water-improved projects was 0.78 mg/L, the median was 0.83 mg/L in the 23 villages without water-improved projects, and the difference was not significant ( Z = 1.475, P > 0.05) . The overall prevalence of dental fluorosis among children aged 8 - 12 years old was 19.86% (1 960/9 871), and the dental fluorosis index was 0.39. The prevalence of dental fluorosis in the villages with qualified water fluoride was 16.13% (1 377/8 539), and the rate was 43.77% (583/1 332) in the villages with unqualified water fluoride, and the difference was significant (χ 2 = 553.283, P < 0.01). The prevalence of dental fluorosis in children with water fluoride content of 0.00 - 1.20, 1.21 - 1.50, and ≥1.51 mg/L was 16.13% (1 377/8 539), 41.20% (281/682), 46.46% (302/650), and the difference was significant (χ 2 = 559.011, P < 0.01), the severity of the disease was positively correlated with water fluorine concentration ( r = 0.273, P < 0.01). The epidemic situation in 202 villages was effectively controlled and 71 villages did not reach the control standard. Conclusions:The progress of water-improved projects and the rate of qualified water fluoride are not optimistic in Xi'an, the dental fluorosis of children is still higher than the government standard in the high fluoride drinking-water areas. The measures for water improving defluorination and disease surveillance should be strengthened.

6.
Chinese Journal of Endemiology ; (12): 710-714, 2019.
Article in Chinese | WPRIM | ID: wpr-790912

ABSTRACT

Objective To assess the effects of defluoridation on prevalence of children's dental fluorosis in Xi'an City and study related influencing factors.Methods In 2017,the survey results of 2013 were collected from the previous investigation of drinking water type fluorosis in Xi'an Center for Disease Control and Prevention,and villages from drinking water type fluorosis areas were divided into five groups:0.0-,0.2-,0.5-,1.0-,and ≥ 1.5 mg/L,according to the fluoride concentrations of water.Four villages were randomly selected from each group,a total of 20 villages were selected as the investigation sites.A cross-sectional analytical study was conducted in the 20 villages,the fluoride in drinking water,the dental fluorosis of children aged 8-12 years and fluoride content in urine were detected,and the survey results were compared with those of 2013.Children were divided into five groups according to urinary fluoride contents as:0.0-(control),0.4-,0.8-,1.2-,and ≥ 1.6 mg/L,and the logistic regression model was used to evaluate the risk of dental fluorosis.Results There were no significant differences in water fluoride content between 2013 and 2017 (P > 0.05).The rates of dental fluorosis among the study population in 2013 and 2017 were 25.35% (200/789) and 20.58% (164/797),and the difference was significant (x2 =5.11,P<0.05).The prevalence rate and severity of dental fluorosis in 2013 [3.52% (9/256),13.28% (17/128),31.62% (43/136),37.82%(45/119),57.33%(86/150)] and 2017[4.02%(10/249),11.82%(13/110),18.05%(24/133),29.13%(37/127),44.94% (80/178)] were significantly increased with increase of water fluoride concentration (x2 =168.02,117.83,P < 0.01).The prevalence rate of dental fluorosis was higher than 30% in the three groups with water fluoride content 0.5-,1.0-and ≥ 1.5 mg/L in 2013,and the prevalence rates were decreased in these groups in 2017.The prevalence rate of dental fluorosis was lower than 30% in the groups with water-fluorine content of 0.5-,1.0-<1.5 mg/L,while the rate of dental fluorosis in the group with water-fluorine content of higher than 1.5 mg/L was still over 40%.The geometric mean of urinary fluoride of children in 2013 and 2017 were 1.02,0.67 rg/L,and the difference was significant (t =10.24,P < 0.01).There were significant differences in children urinary fluoride between water fluoride groups in 2013 and 2017 (F =85.36,151.14,P < 0.01).The risk of dental fluorosis increased with increase of urinary fluoride content,the odds ratio (OR) values were 5.26,7.83 and 13.28 in the three groups with the urinary fluoride 0.8-,1.2-,≥1.6 mg/L in 2013;the OR values in 2017 were 5.18,7.65 and 13.36,the differences were statistically significant (P < 0.05).Conclusions The situation of water fluoride and dental fluorosis are not optimistic after defluoridation of drinking water.It is necessary to reinforce the measures of water defluoridation,and carry out classified management in endemic fluorosis areas.

7.
Journal of Leukemia & Lymphoma ; (12): 596-602, 2019.
Article in Chinese | WPRIM | ID: wpr-789044

ABSTRACT

Objective To investigate the value of NPM1 and FLT3 gene mutation combined with bone marrow imaging detection in the prognosis judgement of initial treatment cytogenetically normal acute myeloid leukemia (CN-AML). Methods The clinical data of 100 patients (non-M3 type) with primary and initial treatment CN-AML from January 2010 to January 2014 in the Peace Hospital Affiliated of Changzhi Medical College were retrospectively analyzed. All patients were enrolled in the bone marrow imaging examination on the end day of induction treatment or the first day after the end of induction treatment (T time point). Univariate and multivariate prognostic analyses were performed on AML patients according to FLT3 and NPM1 gene status, bone marrow juvenile cell ratio at T time point. Results A total of 100 patients included 36 cases with FLT3 gene mutation and 44 cases with NPM1 gene mutation. The complete remission (CR) rate of CN-AML patients was 13.9% (5/36) and 71.9% (46/64), respectively (P< 0.01), 2-year recurrence-free survival (RFS) rate was 5.6% and 59.8%, respectively (P< 0.01), 2-year overall survival (OS) rate was 15.6% and 66.2%, respectively in FLT3+group and FLT3-group (P<0.01). The median RFS and median OS time in FLT3+ group was 6.9 months and 9.4 months, respectively, and the median RFS and median OS time in FLT3-group had not yet reached. There were no significant differences of all the indexes between the two groups (all P< 0.01). And there were no significant differences in CR rate, 2-year RFS rate and 2-year OS rate between NPM1+group and NPM1-group (all P>0.05). The CR rate, 2-year RFS rate and 2-year OS rate in NPM1+ FLT3-group were better than those in NPM1- FLT3-, NPM1-FLT3+and NPM1+FLT3+groups; NPM1-FLT3+and NPM1+FLT3+groups had the worst prognosis, and there were no statistical differences in the CR rate, RFS and OS time between the two groups (all P> 0.05). The prognosis of the patients in bone marrow juvenile cell ratio < 0.05 group at T time point was better than that in ratio ≥0.05 group (all P< 0.05). CN-AML patients were classified into the good prognosis group (NPM1-FLT3-), the medium prognosis group (NPM1+FLT3-), and the poor prognosis group (NPM1-FLT3+and NPM1+FLT3+) according to the FLT3 and NPM1 genes. The good prognosis group+the ratio of bone marrow juvenile cells at T time point<0.05 group, the good prognosis group+the ratio of bone marrow juvenile cells at T time point≥0.05 group, the medium prognosis group + the ratio of bone marrow juvenile cells at T time point < 0.05 group had no statistical differences in CR rate, 2-year RFS rate and 2-year OS rate (all P >0.05). The medium prognosis group + the ratio of bone marrow juvenile cells at T time point ≥0.05 group, the poor prognosis group+the ratio of bone marrow juvenile cells at T time point<0.05 group had the equivalent prognosis, and the average prognosis was moderate; the poor prognosis group + the ratio of bone marrow juvenile cells at T time point ≥ 0.05 group had the worst prognosis. According to Cox multivariate regression analysis, FLT3 gene mutation and the ratio of bone marrow juvenile cells at T time point were independent influencing factors for RFS and OS in CN-AML patients (all P< 0.05). NPM1 was an independent prognosis factor affecting RFS and OS of FLT3-patients (all P < 0.05). Conclusions After induction chemotherapy, the responsiveness and sensitivity of AML patients to chemotherapy regimen can be assessed early and objectively according to molecular genetics and the ratio of bone marrow juvenile cells at T time point, which has a certain value in the prognosis judgement.

8.
Article in Chinese | WPRIM | ID: wpr-776093

ABSTRACT

Supercritical large area or large segmental bone defects are still a clinical problem. Researchers are committed to the development of artificial bone materials, but in order to solve the problem of poor bone formation of artificial bone materials, people are paying more and more attention to application of bone marrow mesenchymal stem cells in bone tissue engineering. In this review, bone marrow mesenchymal stem cells, osteogenic differentiation, osteoblasts cells, clinical application were used as keywords to search CNKI database, Wanfang database, Weipu database and PUBMED database by computer. The isolation and culture of bone marrow mesenchymal stem cells, bone marrow mesenchymal stem cell identification method, osteogenic induction method, osteogenic differentiation identification and clinical applicationt were comprehensively summarized in order to provide a theoretical basis for its use as a seed cell in the treatment of bone tissue diseases. Scholars have preliminarily studied the treatment of bone and cartilage defects, osteoarthritis, femoral head necrosis and other diseases with bone marrow mesenchymal stem cells combined with transplantation, and obtained good clinical efficacy.However, bone marrow mesenchymal stem cells have certain advantages and disadvantages, and further clinical studies and long-term efficacy verification are needed.


Subject(s)
Bone Marrow Cells , Cell Differentiation , Cells, Cultured , Mesenchymal Stem Cells , Osteogenesis
9.
Chinese Journal of Endemiology ; (12): 554-558, 2019.
Article in Chinese | WPRIM | ID: wpr-753546

ABSTRACT

Objective To find out the iodine nutrition and thyroid function of adults in rural and urban areas of Xi'an City, and to analyze the relationship between iodine intake and thyroid function. Methods Two streets ( townships ) were selected in urban and rural areas of Xi'an City according to multi-stage stratified cluster sampling, one community (administrative village) was selected in each street (township), and 100 residents were selected from each community (administrative village). Drinking water, household salt, urine and blood samples of people over the age of 16 were collected to test water iodine, salt iodine, urinary iodine and thyroid function. Results A total of 354 drinking water samples were examined, and the median of water iodine was 4.50 μg/L in Xi'an, and iodine concentrations of ≥10 μg/L in urban group was higher than that of rural group [ 48 . 21% ( 94/195 ) vs 20.13% (32/159), χ2= 30.123, P < 0.05]. The highest value of urban water iodine was 244.10 μg/L. A total of 354 edible salt samples were examined, and the median of salt iodine was 19.62 mg/kg in urban and rural areas of Xi'an. The edible rate of qualified iodized salt in urban group was higher than rural group [78.97%(154/195) vs 69.18%(110/159),χ2=12.523,P<0.05]. The median of urinary iodine of urban and rural groups were 236.00 and 196.00μg/L, respectively, and urban group was higher than rural group (Z = - 3.121, P < 0.05). The frequency distribution of urinary iodine in urban group was different from rural group (χ2=24.440,P<0.05). The mean value of thyroxine (T4) in urban group was lower than that of rural group,and there was statistical difference [nmol/L:(89.43 ± 19.70) vs (93.57 ± 16.89), t = - 2.098,P < 0.05]. The positive rates of anti-thyroglobulin antibody (TgAb) of urban and rural groups were 21.54%(42/195) and 13.21%(21/159), the positive rate of TgAb was higher in urban than in rural (χ2=4.155, P < 0.05). The positive rates of thyroid peroxidases antibody (TPOAb) were 13.33% (26/195) and 6.92%(11/159), respectively. There were no statistically significant differences of thyroid dysfunction in urban and rural groups [14.87%(29/195) vs 12.58%(20/159), P > 0.05]. Subclinical hypothyroidism in all thyroid dysfunction was the main thyroid disorder, which was 7.18%(14/195) and 6.92% (11/159) in urban and rural groups. Conclusions Xi'an urban healthy adult iodine intake is at an ultra-appropriate level. In rural areas, the intake of iodine in healthy adults is at an appropriate level. The areas of high water iodine are found in Xi'an for the first time. Increased iodine intake may promote the occurrence of subclinical hypothyroidism.

10.
Journal of Leukemia & Lymphoma ; (12): 596-602, 2019.
Article in Chinese | WPRIM | ID: wpr-797215

ABSTRACT

Objective@#To investigate the value of NPM1 and FLT3 gene mutation combined with bone marrow imaging detection in the prognosis judgement of initial treatment cytogenetically normal acute myeloid leukemia (CN-AML).@*Methods@#The clinical data of 100 patients (non-M3 type) with primary and initial treatment CN-AML from January 2010 to January 2014 in the Peace Hospital Affiliated of Changzhi Medical College were retrospectively analyzed. All patients were enrolled in the bone marrow imaging examination on the end day of induction treatment or the first day after the end of induction treatment (T time point). Univariate and multivariate prognostic analyses were performed on AML patients according to FLT3 and NPM1 gene status,bone marrow juvenile cell ratio at T time point.@*Results@#A total of 100 patients included 36 cases with FLT3 gene mutation and 44 cases with NPM1 gene mutation. The complete remission (CR) rate of CN-AML patients was 13.9% (5/36) and 71.9% (46/64), respectively (P < 0.01), 2-year recurrence-free survival (RFS) rate was 5.6% and 59.8%, respectively (P < 0.01), 2-year overall survival (OS) rate was 15.6% and 66.2%, respectively in FLT3+ group and FLT3- group (P < 0.01). The median RFS and median OS time in FLT3+ group was 6.9 months and 9.4 months, respectively, and the median RFS and median OS time in FLT3- group had not yet reached. There were no significant differences of all the indexes between the two groups (all P < 0.01). And there were no significant differences in CR rate, 2-year RFS rate and 2-year OS rate between NPM1+ group and NPM1- group (all P > 0.05). The CR rate, 2-year RFS rate and 2-year OS rate in NPM1+ FLT3- group were better than those in NPM1- FLT3-, NPM1- FLT3+ and NPM1+ FLT3+ groups; NPM1- FLT3+ and NPM1+ FLT3+ groups had the worst prognosis, and there were no statistical differences in the CR rate, RFS and OS time between the two groups (all P > 0.05). The prognosis of the patients in bone marrow juvenile cell ratio < 0.05 group at T time point was better than that in ratio ≥0.05 group (all P < 0.05). CN-AML patients were classified into the good prognosis group (NPM1- FLT3-), the medium prognosis group (NPM1+ FLT3-), and the poor prognosis group (NPM1- FLT3+ and NPM1+ FLT3+) according to the FLT3 and NPM1 genes. The good prognosis group+ the ratio of bone marrow juvenile cells at T time point < 0.05 group, the good prognosis group+ the ratio of bone marrow juvenile cells at T time point ≥0.05 group, the medium prognosis group+ the ratio of bone marrow juvenile cells at T time point < 0.05 group had no statistical differences in CR rate, 2-year RFS rate and 2-year OS rate (all P > 0.05). The medium prognosis group+ the ratio of bone marrow juvenile cells at T time point ≥0.05 group, the poor prognosis group+ the ratio of bone marrow juvenile cells at T time point < 0.05 group had the equivalent prognosis, and the average prognosis was moderate; the poor prognosis group+ the ratio of bone marrow juvenile cells at T time point ≥ 0.05 group had the worst prognosis. According to Cox multivariate regression analysis, FLT3 gene mutation and the ratio of bone marrow juvenile cells at T time point were independent influencing factors for RFS and OS in CN-AML patients (all P < 0.05). NPM1 was an independent prognosis factor affecting RFS and OS of FLT3- patients (all P < 0.05).@*Conclusions@#After induction chemotherapy, the responsiveness and sensitivity of AML patients to chemotherapy regimen can be assessed early and objectively according to molecular genetics and the ratio of bone marrow juvenile cells at T time point, which has a certain value in the prognosis judgement.

11.
Article in Chinese | WPRIM | ID: wpr-801123

ABSTRACT

Blood glucose monitoring is an important part and means in the process of diabetes treatment and management. There is a high correlation between glucose concentration in interstitial fluid and glucose concentration in blood. Real-time monitoring of glucose concentration in interstitial fluid has important clinical significance. Continuous glucose monitoring (CGM) is an emerging glucose monitoring technology, which indirectly reflects the blood glucose level of the body through the glucose level in the interstitial fluid, providing continuous and comprehensive information and rules of blood glucose variation over a period of time. There are three main categories of CGM: minimally invasive implantation, non-invasive microtransparency and non-invasive technology. Noninvasive blood glucose monitoring technology is the future development direction, but accuracy and delay of blood glucose will be the biggest challenge to be overcome in clinical application.

12.
Article in Chinese | WPRIM | ID: wpr-701265

ABSTRACT

Objective To investigate the dental fluorosis and intelligence level of children in drinking water-type of endemic fluorosis areas in Xi'an,and to provide a scientific basis for development of prevention and control strategies.Methods In 2016,six drinking water-type of endemic fluorosis villages and one non-diseased village were selected as investigation sites in Xi'an.According to the detection rate and prevalence of dental fluorosis in children,six diseased villages were divided into three groups,the disease light-affected areas were Huidong and Xingnan,the moderate-affected areas were Liulin and Xiazhu,and the serious-affected areas were Hetou and Xiaoyang;and the Deng village was the non-diseased.A cross-sectional survey was conducted to collect 3 tap water samples in each village to test the fluorine content in water.For all children aged 8 to 12 years in diseased villages and 100 children aged 8 to 12 years in non-diseased villages,dental fluorosis examination and intelligence test were carried out.Results Mean value of water fluoride in non-diseased village and endemic fluorosis areas were (0.25 ± 0.01),(0.78 ± 0.43) mg/L,and the water fluoride content in two diseased villages was over 1.20 mg/L.The detection rate of dental fluorosis in children aged 8 to 12 (30.32%,67/221) in diseased areas was significantly higher than that in non-diseased area (2.00%,2/100;x2 =31.32,P < 0.01).Children's IQ scores in the four groups were 108.68 ± 10.83,102.54 ± 12.54,101.70 ± 14.85,93.45 ± 10.84,and the IQ scores were decreased with the severity of dental fluorosis,the difference in IQ scores was significant between the endemic fluorosis areas and non-endemic fluorosis area (P < 0.05);the percentage of children with IQ≤89 in endemic fluorosis areas was significantly higher than that in non-endemic fluorosis area (x2 =22.02,P < 0.01).The IQ scores of children with dental fluorosis was 94.96 ± 13.75,and the IQ was 105.26 ± 10.19 in children with normal condition,the difference was significant (t =5.61,P < 0.01),the mean value of IQ was decreased with the severity of dental fluorosis (F =7.42,P < 0.05),the percentage of children with IQ≤89 in patient was higher than that in normal children,the difference was significant (x2 =45.70,P < 0.01).Conclusion Low level of water fluoride still has negative influence on children's dental health and intelligence,water improving and surveillance should be strengthened to ensure the health of children.

13.
Chinese Journal of Radiology ; (12): 452-456, 2018.
Article in Chinese | WPRIM | ID: wpr-707957

ABSTRACT

Objective To investigate the value of blood oxygen level-dependent (BOLD) and arterial spin labeling (ASL) MRI in the early diagnosis of renal allograft dysfunction. Methods A total of 53 patients with allograft kidney transplantation from December 2014 to April 2017 in Tianjin First Center Hospital were prospectively collected. In all cases, the serum creatinine value was detected, and the estimated glomerular filtration rate (eGFR) was calculated. All patients were divided into three groups according to the eGFR. There were three groups;continuous renal transplant function group (group A, 19 cases), short term allograft dysfunction group (group B, 17 cases), and continuous renal function damage group (group C, 17 cases). Fifty-three patients were examined by BOLD and ASL MRI at 10 to 14 days after operation. Twenty one patients were reviewed by BOLD and ASL MRI at 10 to 13 weeks after operation (A, B and C group were 7, 6, 8 cases). The values of renal cortex R2* (R2*=1/T2*), renal medullary R2* and renal cortical renal blood flow (RBF) were measured in each group. One-way analysis of variance (ANOVA) was used to compare the differences of eGFR and BOLD, ASL index (renal cortex R2*, renal medulla R2*, renal cortex RBF value) after the first post renal transplant among the 3 groups. Correlations between BOLD and ASL index with eGFR index in the first post renal transplant were assessed by using Pearson correlation analysis. The efficacy of BOLD and ASL in the differential diagnosis of continuous renal transplant function group and short term allograft dysfunction group by the receiver operating characteristic (ROC). Paired samples t test was used to compare the differences of eGFR, BOLD and ASL indexes for the baseline and follow-up. Results The differences of eGFR, cortical R2*value, medullary R2*value and cortical RBF value were statistically significant between the 3 groups (P<0.05). The transplanted kidney medullary R2* value and cortical RBF value were positively correlated with eGFR (r values were 0.553, 0.687; P<0.01). There was no correlation between transplanted kidney renal cortex R2*value and eGFR value (P>0.05). The area under ROC was 0.776 for the renal medullary R2*in the diagnosis of continuous renal transplant function group and the short term allograft dysfunction group;with the threshold of 24.5, the sensitivity of diagnosis of renal allograft short term allograft dysfunction was 58.8%, specificity was 84.2%;the area under ROC for renal cortex RBF was 0.881, with the threshold of less than 277 ml·100 g-1·min-1, the sensitivity was 70.6%, specificity was 89.4%. During follow-up, eGFR, cortical R2*and medullary R2*in group A remained stable, while the renal cortex RBF value went slightly higher, and the differences were statistically significant ( P<0.05). The cortical R2* values in group B remained stable, eGFR, renal medulla R2* and renal cortex RBF decreased, and the differences were statistically significant (P<0.05). The values of eGFR and R2*in group C remained stable, while the renal medullary R2* value and cortex R2* value increased slightly, and the differences were statistically significant (P<0.05). Conclusions This study shows that BOLD and ASL MRI can longitudinally monitor the functional status of the transplanted kidney and detect the abnormality of renal allograft function early. CRBF value shows high diagnostic value.

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Journal of Medical Postgraduates ; (12): 858-861, 2017.
Article in Chinese | WPRIM | ID: wpr-611814

ABSTRACT

Objective Cancer-related fatigue (CRF) is a key in the management of cancer patients' clinic syptoms.This article investigated the status quo of nurses' knowledge and attitude towards CFR.Methods THe method of cross-sectional survey and questionnaire was used to investigate the knowledge and attitude towards CRF among nurses from related departments of three Grade III hospitals in Nanjing.Results 142 nurses answered the questionnaire.The average correct rate was 76.25%, among which nurses from the oncology department had better congition rate than nurses from other medical and surgical departments (84.3%, 75.98%, 79.57%) , representing significant difference (P<0.05).64.79% of the nurses found the relatives of cancer patients and nurses often fail to understand cancer patients;complaint of fatigue, 76.76% of nurses assumed there is lack of communication in fatigue between patients and medical staff.94.36% of nurses agreed medical institutions should strengthen the management of CRF.Conclusion At present, the clinical nurses have inadequate knowledge about CRF, which should be enhanced in future work.

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Parenteral & Enteral Nutrition ; (6): 336-340, 2017.
Article in Chinese | WPRIM | ID: wpr-665569

ABSTRACT

Objective:This study aims to investigate the incidence and potential cause of the undernutrition in gastrointestinal cancer patients received postoperatively adjuvant chemotherapy.Method:Between July and December 2016,a total of 181 gastrointestinal cancer patients who underwent postoperatively adjuvant chemotherapy in the Department of General Surgery of Nanjing General Hospital were enrolled in this study.Nutritional risks of the patients were screened by the patient-generated subjective global assessment (PG-SGA).Serum albumin concentrations,plasma hemoglobin levels and white blood cell numbers of the patients were determined during the chemotherapy.The patients'clinical data,including gender,age,tumor location,chemotherapy stage and adverse events post the chemotherapy,were recorded.Result:All patients completed the PG-SGA for nutritional risk screening.Among the patients,69 cases (38.1%) had a PG-SGA score of 0 ~ 3 points,showing absence of undernutrition.The remaining 112 cases (61.9%)had a PG-SGA score above 4 points,indicating moderate or severe undernutrition.71cases (39.2%) of them displayed moderate underuutrition (4-8 points),and 41 cases (22.7 %) showing severe undernutrition (> 8 points).The PG-SGA scores in patients with gastric cancer were significantly higher than those in the rectal cancer patients (P < 0.05) and in the colon cancer cases (P < 0.01).In addition,the incidence of undernutrition in the male patients was much higher than in the female cases (P < 0.05).The incidence of undernutrition in the patients aging > 65 years was higher than in the cases below 65 years old (P < 0.05).The levels of plasma hemoglobin and numbers of white blood cells were significantly lower in the patients with undernutrition (PG-SGA score >4 points),and adverse events such as nausea and vomiting were also more frequently presented in these cases.No significant difference in the incidence of the patients' undernutrition was observed between different stages of the chemotherapy.Conclusion:The patients with gastrointestinal cancer underwent postoperatively adjuvant chemotherapy had higher incidence ofundernutrition.Gender,age and tumor location were the risk factors for the development of undernutrition.Our findings provide evidence for the utilization of nutrition interventions in these patients.

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Article in Chinese | WPRIM | ID: wpr-311522

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the changes of CD4T lymphocytes in peripheral blood of patients with follicular lymphoma and its clinical significance.</p><p><b>METHODS</b>Blood samples were collected for detection of whole blood cells, including absolute monocyte count (AMC), absolute lymphocyte count (ALC), hemoglobin (Hb), platelet count (Plt). Age, sex, pathological grade, number of involved lymph nodes, bone marrow involvement (BMI), Ann Arbor stage, B symptoms, serum lactate dehydrogenase (LDH) and serum β-2 microglobulin (β2-MG) were recorded, the prognostic stratification was performed by using FLIPI and FLIPI-2. The T lymphocyte subsets were analyzed by flow cytometry, including the absolute number of CD4T lymphocytes (ACD4C) and the absolute number of CD8T lymphocytes (ACD8C).</p><p><b>RESULTS</b>Patients were with higher Ann Arbor stage, Hb<120 g/L, LDH greater than the upper limit of normal, the number of lymph nodes were involved> 4, the bone marrow was involvement, β2-MG levels were high FLIPI score and FLIPI-2 score, AMC level was higher (P<0.05). There were no significant differences in ACD4C levels among different groups. Patients with AMC≥0.89×10/L showed a shorter progression-free survival (PFS) and a shorter overall survival time (OS) (P=0.010,0.002) as compared with patients with AMC<0.89×10/L. The patients with ACD4C>0.16×10/L had longer progression-free survival and overall survival time, as compared with patients with ACD4C ≤0.16×10/L (P=0.016,0.012). Low ACD4C and high AMC related with shorter PFS and OS (P=0.013, 0.020). Univariate Cox regression analysis showed that age (P=0.026), bone marrow involvement (P=0.017), elevated LDH (P=0.001), β2-MG (P=0.014), FLIPI and FLIP2 score (P= 0.004 and 0.000) related with a shorter PFS. Multivariable Cox regression analysis showed that Hb (P=0.015), elevated LDH (P=0.003), β2-MG (P=0.045), bone marrow involvement (P=0.016) and FLIPI-2 score(P=0.003) related with short OS. ACD4C ≤0.16×10/L was a factor influencing prognosis of FL patients (PFS and OS) (P<0.05).</p><p><b>CONCLUSIONS</b>Low ACD4C levels relatees with poor prognosis of patients with FL, and the ACD4C levels may be an important predictor for FL disease and prognosis.</p>

17.
Braz. arch. biol. technol ; 60: e17160337, 2017. graf
Article in English | LILACS-Express | LILACS | ID: biblio-951472

ABSTRACT

ABSTRACT Screening promising L. thermophiles with high productivity, high efficiency and strong adaptability are very important in lactic acid industry. For this purpose, 80MeV/u carbon ions were applied to irradiate L. thermophiles. After high-throughput screening, a mutant, named SRZ50, was obtained. Different carbon sources or nitrogen sources were provided to investigate carbon or nitrogen source utilization between mutant SRZ50 and wild type, and different fermentation periods were also chose to study fermentation characteristic between mutant SRZ50 and wild type. The results showed that mutant SRZ50 exhibited the enhanced L-(+)-lactic acid production from wild type. When glucose or fructose was the sole carbon source, the L(+)-lactic acid production by mutant SRZ50 was both the highest, respectively, 23.16 ± 0.72 g/L or 23.24 ± 0.66 g/L, which had a significant increase from that of wild type (P<0.01), following obvious increase in biomass (P<0.05). When yeast powder was the sole nitrogen source, it can promote mutant SRZ50 to accumulate the highest L-(+)-lactic acid accumulation, which also had a significant increase from that of wild type (P<0.01). Under different fermentation periods, it was obtained that mutant SRZ50 all exhibited significant increase in L-(+)-lactic acid accumulation from wild type. In conclusion, a mutant strain with improved production profiles for L-(+)-lactic acid, was obtained, indicating that heavy ions can be an efficient tool to improve metabolic product accumulations in microbes.

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Article in Chinese | WPRIM | ID: wpr-492144

ABSTRACT

BACKGROUND:Previous studies have found that platelet-rich fibrin has a good ability to induce gingival soft tissue repair and regeneration. OBJECTIVE:To observe the effects of platelet-rich fibrinversus colagen membrane on gingival soft tissue healing, and to evaluate the ability of platelet-rich fibrin to repair gingival defects. METHODS:Twenty-two patients (2 premolar teeth and 20 molars) scheduled for premolar or molar removal or ridge preservation due to various reasons were selected and randomized into two groups. Bio-Oss was implanted into the extraction socket folowed by covering with platelet-rich fibrin or colagen membrane. Healing time and healing rate of gingival defects were detected to evaluate the ability of platelet-rich fibrin to promote gingival tissue healing at 1-2 weeks after Bio-Oss implantation. RESULTS AND CONCLUSION:The healing time was (12.17±2.25) days in the platelet-rich fibrin group and (17.30±2.58) days in the colagen group. The healing rate of the platelet-rich fibrin group was notably higher than that in the colagen membrane group at 1 and 2 weeks after Bio-Oss implantation. These findings indicate that platelet-rich fibrin is better than colagen membrane to improve the healing of gingival soft tissues with a shorter healing time.

19.
Article in Chinese | WPRIM | ID: wpr-486443

ABSTRACT

BACKGROUND: In clinical, the research on the method and the material of the soft tissue defect of the operation area has been in depth. It wil have a positive impact on our exploration and research in this field through the establishment of reliable experimental animal oral soft tissue defect model. OBJECTIVE: To establish a rabbit model of oral soft tissue defects for oral treatment of soft tissue defects in-depth study. METHODS: Eighteen 3-month-old male New Zealand rabbits were enrol ed. A tissue ring cutting dril of 5 mm diameter was used to prepare round ful -thickness soft tissue defects in the front part of the hard palate and, respectively, from the back of the maxil ary incisors, about 2 mm from the hard palate mucosal edge. Morphology and histology were observed at 3, 7, 14, 21, 28 and 56 days after model establishment. RESULTS AND CONCLUSION: (1) Morphological observation: After 3 and 7 days, the wound’s inflammatory reaction was obvious. As the time goes, the inflammatory response subsided, the wound gradual y healed. Scar formation was observed at 21, 28 and 56 days after surgery. (2) Histological observation: 3 and 7 days after injury, many inflammatory cel s were infiltrating, and tissue necrosis area was larger. At 7 days after surgery, with the extensive formation of connective tissue proliferation and new blood capil aries, the wound gradual y shaping completely. (3) Results indicated that a rabbit model of oral soft tissue defects was successful y established, which was in line with the physical laws of wound healing and the characteristics of human oral soft tissue defects healing.

20.
Article in Chinese | WPRIM | ID: wpr-484839

ABSTRACT

BACKGROUND:In previous experiments, we have confirmed that platelet rich fibrin has the ability of osteoinduction, and have conducted a preliminary study on its microstructure and biomechanics. However, little is reported on its histology research. OBJECTIVE:To compare the histological changes after implanting platelet-rich fibrin, Bio-Oss and autologous bone and to analyze the pros and cons of platelet-rich fibrin implantation for repair of bone defects. METHODS: As previously reported, animal models of critical bone defects were established respectively on the bilateral femoral condyles of 12 beagle dogs. Then, platelet-rich fibrin, Bio-Oss+colagen membrane (Bio-Oss group) and autologous bone (autologous bone group)+colagen membrane were respectively implanted. At 3, 6, 8 and 12 months, one experimental dog from each group was kiled, respectively, and histological observation was performed. Another beagle dog as blank control was enroled to establish the animal model of critical bone defects, with no implantation. RESULTS AND CONCLUSION:At 3, 6, 8 and 12 months after implantation, there were significant differences in the new bone formation speed and amount between the platelet-rich fibrin group, Bio-Oss group and autologous bone group. These three kinds of bone grafts al had osteoinductive ability to different extents. In the platelet-rich fibrin group, the osteogenic effects were better at 3 and 6 months, and the new bone was similar to natural one; in the autologuos bone group, bone necrosis was noticeable at 3 and 6 months, but the osteogenic effects became better at 8 months, and the new bone was similar to natural one at 12 months; in the Bio-oss group, the osteogenic effects were similar to those in the platelet-rich fibrin group, but the residual of Bio-oss was visible at 12 months; in the blank control group, no bone formed at 3 months, indicating the animal model of critical bone defects was made successfuly. In brief, the platelet-rich fibrin has good osteoinductive ability, with shorter time and better quality.

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