In this study, a novel technique for the preparation of (125)I-5-trimethylstannyl-1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) urail (FIAU) was developed, (125)I-FIAU biodistribution profile was detected in Kunming mice and the possibility of using FTAU radio-labeling for reporter gene imaging was explored. 5-trimethylstannyl-1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) urail (FTAU) was labeled with radioiodine ((125)I). A rotary evaporation method was used to remove excess methanol. The reactant was purified through a Sep-Pak C18 reversal phase column. The radiochemical purity and in vivo stability were determined using silica gel thin layer chromatography (TLC). The biodistribution of (125)I-FIAU in Kunming mice was also detected. The results showed that (125)I-FIAU could be radiolabeled effectively with FTAU, with mean labeling rate being (81±0.38)% (n =5). The mean radiochemical purity of (98.01±0.40)% (n=5) was achieved after a reversal phase Sep-park column purification. (125)I-FIAU was stable when incubated in normal human serum or in saline at 37°C, with a radiochemical purity >96% during a 0.5-24 h time period. Biological experiments exhibited rapid clearance of (125)I-FIAU from the blood pool. (125)I-FIAU was mostly excreted by kidneys. (125)I-FIAU in myocardium dropped conspicuously after 8 h and there was hardly retention at 24 h. We were led to concluded that the new method of radioiodinization of FTAU for the preparation of (125)I-FIAU is easy, highly effective and stable in vivo. The biodistribution of (125)I-FIAU in Kunming mice showed it can serve as an imaging probe for myocardial reporter genes.

Objective To analyze the disease burden caused by occupational coal workers' pneumoconiosis (CWP) in Anhui Methods Province. A total of 1 649 patients with occupational CWP diagnosed in Anhui Province from 1950 to 2019 were selected as the study subjects using a retrospective study method. Age, gender, survival time, location, working age of disease onset, age of death, stage and date of diagnosis of CWP, comorbidities at the time of investigation, hospitalization and outpatient expenses in the past year, cost of absence from work, cost of absence from work of caregivers, and cost of nutrition and transportation were investigated. The years of life lost, years lived with disability (YLDs), disability adjusted life years (DALYs) Results and economic losses were calculated. Among these patients, 1 405 cases survived and 244 cases died. In the age range - - - of 20.0 70.0 years, the YLDs of surviving patients were 2.12 22.20 (8.19±3.59) person years. The YLDs of patients with disease vs - P complications was higher than that of patients without complications [(8.55±3.95) (7.87±3.21) person years, <0.01]. The total - - DALYs of the patients was 14 031.59 person years, and the average per capita DALYs was 8.51 person years. Its YLDs accounted for 82.0 % of the total DALYs. The total economic loss caused by CWP in the 1 405 surviving patients was 354.903 0 Conclusion million yuan, and the average per capita economic loss was 252 600 yuan. The disease burden caused by CWP is relatively high in Anhui Province. In addition to early detection, diagnosis and treatment, it is necessary to focus on prevention and treatment of CWP complications to reduce the disease burden.

Objective To determine the incidence of breast cancer?related lymphedema ( BCRL) in China and to analyze the associated risk factors. Methods A retrospective analysis was performed on the clinical data and the incidence of BCRL in 281 patients who were newly diagnosed with breast cancer and received surgery. The incidence of BCRL was evaluated using arm circumference measurement and Norman questionnaire. The risk factors for lymphedema were analyzed using chi?square test and logistic regression model. Results In all patients,the incidence rates of BCRL determined by arm circumference measurement and Norman questionnaire were 31?7% and 27?0%, respectively. The multivariate analysis showed that postoperative radiotherapy,a preoperative body mass index no less than 24 kg/m2 ,a large axillary lymph node dissection area,and a large number of positive axillary lymph nodes significantly increased the risk of BCRL (HR=2?87,P=0?042;HR=2?54,P=0?011;HR=1?97,P=0?037;HR=1?06,P=0?023). Moreover, patients with breast cancer and hypertension had 1?74?fold higher risk of BCRL than those with normal blood pressure. Conclusions The incidence of BCRL is still very high. However,most of patients only have mild edema. Postoperative radiotherapy, a large axillary lymph node dissection area, a large number of positive axillary lymph nodes,a high preoperative body mass index,and hypertension are risk factors for BCRL.

OBJECTIVETo explore the rate of compliance, influencing factors and the safety of patients with onychomycosis under treatment of oral antifungal agents.

METHODSAccording to the scoring clinical index of onychomycosis (SCIO), 330 patients with onychomycosis, their target nail's integral of the SCIO were calculated and randomly divided into three groups under the baseline of the SCIO integral range. Patients were treated with intermittent pulse itraconazole (A group), continuous terbinafine (B group) and intermittent terbinafine (C group) respectively. Self-administered questionnaire was applied in the survey on every onychomycosis patient.

RESULTSThe average rate of compliance was 55.15%. The cure rate for those compliance with doctors' order was 89.01%, while it was only 30.41% for those noncompliant patients The overall non-compliant rate was 44.85%. Among the noncompliant ones, 29.73% were worried about the side effects of medicine, 22.30% thought that they had already been cured, 15.54% was due to economic reasons and 12.16% could not bear the side effects of medicine. It was found that the compliant rates were significantly correlated to ageing, position of the target nails, the integral of the SCIO and the therapy scheme (P < 0.05), while no significant correlations were seen between male and female, culture degree and course (P > 0.1). The frequency of adverse incident of A, B, C groups were 22.73%, 21.43%, 23.15% respectively, but without statistical significance (P > 0.1). Majority of the adverse incidents happened during the first month of therapy but were mild and reversible.

CONCLUSIONOur results showed that the overall compliance was low which exerted a significant influence on the curative effect of onychomycosis patients. Factors as ageing, position of the target nail, integral of the SCIO and the therapy scheme had an influence on the compliant rate. When treating onychomycosis with oral itraconazole, the results seemed to be just as safe as when using terbinafine.

Administration, Oral ; Age Factors ; Antifungal Agents ; administration & dosage ; adverse effects ; economics ; Dose-Response Relationship, Drug ; Female ; Humans ; Itraconazole ; administration & dosage ; adverse effects ; economics ; Male ; Naphthalenes ; administration & dosage ; adverse effects ; economics ; Onychomycosis ; drug therapy ; Patient Compliance ; statistics & numerical data ; Surveys and Questionnaires

OBJECTIVETo investigate the factors influencing the quality of life (QOL) of children with phenylketonuria (PKU) in Anhui Province, China.

METHODSA total of 104 PKU children who were diagnosed and treated in three major maternal and child health hospitals in Anhui Province were enrolled as study subjects. The PedsQL™ 4.0 Generic Core Scales were used to evaluate the quality of life of these children. The multivariate logistic regression analysis was used to evaluate the factors influencing the QOL.

RESULTSThe 104 PKU children had significantly lower overall QOL score and scores on the subscales of physiological functioning, emotional functioning, and social functioning than the general school-age children (P<0.01). They also had a significantly lower score on the physiological domain consisting of emotional functioning, social functioning, and role functioning than the general school-age children (P<0.01). The multivariate logistic regression analysis showed that an older age (≥4 years) of PKU children was the risk factor for poor QOL (OR=8.569, P<0.01), and guardians' engagement at enterprises or institutions was the protective factor for QOL (OR=0.206, P<0.05).

CONCLUSIONSPKU children have a low level of QOL, and age and guardians' occupation are factors influencing the QOL.

Adolescent ; Age Factors ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Logistic Models ; Male ; Phenylketonurias ; psychology ; Quality of Life

OBJECTIVENucleic acid amplification (PCR) fluorogenic quantitative assay is used for the diagnosis of respiratory syncytial virus (RSV) infection. This study was designed to explore the sensitivity of PCR fluorogenic quantitative assay for ascertaining respiratory RSV infection and RSV infection conditions by detecting the presence of RSV-RNA related sequences in children.

METHODSBronchial and nasopharyngeal secretions specimens from 261 hospitalized children with respiratory tract infections from January 2007 to October 2008 were collected. Respiratory syncytial virus nucleic acid (RNA) in the specimens was measuredby PCR fluorogenic quantitative assay. Blood RSV-IgM was detected by enzyme linked immunosorbent assay (ELISA). The sensitivity for ascertaining respiratory RSV infection was compared between the two assays.

RESULTSThe RSV-RNA positive rate ascertained by PCR fluorogenic quantitative assay (38.7%) was significantly higher than blood RSV-IgM positive rate (21.1%) (p<0.01). The RSV-RNA positive rate (43.6%) in children at ages of less than 6 months was significantly higher than that in children at ages of 1 to three years (32.1%) (p<0.01). The RSV-RNA positive rate in children with bronchiolitis (58.5%) was the highest, followed by bronchopneumonia (38.2%) and acute bronchitis (20.0%).

CONCLUSIONSThe sensitivity of PCR fluorogenic quantitative assay for ascertaining respiratory RSV infection is higher. RSV is a major pathogen of lower respiratory tract infections in infants and young children. A higher rate of RSV infection is associated with a younger age. RSV infection is the most common in children with bronchiolitis.

Antibodies, Viral ; blood ; Child ; Child, Preschool ; Enzyme-Linked Immunosorbent Assay ; Female ; Fluorescence ; Humans ; Immunoglobulin M ; blood ; Infant ; Male ; Polymerase Chain Reaction ; methods ; RNA, Viral ; analysis ; Respiratory Syncytial Viruses ; genetics ; immunology ; isolation & purification ; Respiratory Tract Infections ; virology ; Sensitivity and Specificity ; Sputum ; virology

Objective To compare the clinical effect of nasal intubation with domestic video intubationscope and Macintosh direct laryngoscope. Methods One hundred patients scheduled for oro-maxillo-facial operation, American Society of Anesthesiologists (ASA) grade I or II, aged 19 ~ 67 years, were randomly divided into the domestic video intubationscope group (group V) and the Macintosh direct laryngoscope group (group M), with 50 cases in each group. Nasal intubation was respectively performed with domestic video intubationscope (Group V) and Macintosh direct laryngoscope (group M). Cormark-Lehane grade (C-L classification), tracheal intubation time, first-time intubation success rate and tracheal intubation complications were recorded.Mean arterial pressure (MAP) and heart rate (HR) of before induction of anesthesia (T0), after induction of anesthesia (T1), at glottic exposure (T2), at intubation (T3), 1 min after intubation (T4) and 3 min after intubation (T5) were recorded. Results C-L classification in group V was significantly lower than that in group M (P < 0.05), intubation time in group V was significantly shorter than that in group M (P < 0.05), first-time intubation success rate in group V was significantly higher than that in group M (P < 0.05). Compared with T1, MAP was significantly higher at T3~ T4and HR was significantly faster at T3in group V, MAP was significantly higher at T2~ T4and HR was significantly faster at T2~ T3in group M (P < 0.05). Compared with group M, MAP and HR in group V were significantly lower at T2~ T4 (P < 0.05). The incidence of tracheal intubation complications in group V was significantly lower than that in group M (P < 0.05). Conclusions Compared with Macintosh direct laryngoscope,domestic video intubationscope in nasal intubation is better in glottic exposure,it could shorten tracheal intubation time ,increase first-time intubation success rate, maintain stable hemodynamics, has fewer tracheal intubation complications and is worthy of clinical application.

Objective To investigate the curative effects of various infusion volumes on liver-related metabolic mechanism in the treatment of hemorrhagic shock.Methods A severe hemorrhagic shock rabbit model was established in 30 rabbits.The rabbits were randomly divided into three groups:non-infusion group (A), conventional infusion group (B), and excessive infusion group (C) (n=10 in each group).Taking group B as the control, groups A and C were observed for the damage of non-infusion and excessive infusion, respectively.The outcomes in the three groups and their relations with liver tissue metabolism changes were analyzed with gas chromatograph-mass spectrometer (GC-MS).Results The mortality in groups A, B, and C group were 80％, 0％, and 70％, respectively.The liver tissue metabolic profile in group B showed statistically significant difference compared with that in groups A and B.In group C, the levels of 21 metabolites were lower than those in group B, and the levels of8 metabolites were lower than those in group A.The relative contents of various metabolites were correlated with infusion volumes, and the succinic acid content was associated with death events (P＜0.05).Conclusion The conventional infusion has significant curative effect on hemorrhagic shock.The metabolites of liver tissues with excessive infusion are generally decompensated and have longer survival time than those in non-infusion group, which may caused by the excessive infusion-induced blood volume increase after hemorrhagic shock.Tissue fluid dilution is an important cause of death.

In this study,a novel technique for the preparation of 125I-5-trimethylstannyl1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) urail (FIAU) was developed,125I-FIAU biodistribution profile was detected in Kunming mice and the possibility of using FTAU radio-labeling for reporter gene imaging was explored.5-trimethylstannyl-l-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) urail.(FTAU) was labeled with radioiodine (125I).A rotary evaporation method was used to remove excess methanol.The reactant was purified through a Sep-Pak C18 reversal phase column.The radiochemical purity and in vivo stability were determined using silica gel thin layer chromatography (TLC).The biodistribution of 125I-FIAU in Kunming mice was also detected.The results showed that 125I-FIAU could be radiolabeled effectively with FTAU,with mean labeling rate being (81±0.38)％ (n =5).The mean radiochemical purity of (98.01±0.40)％ (n=5) was achieved after a reversal phase Sep-park column purification.125I-FIAU was stable when incubated in normal human serum or in saline at 37℃,with a radiochemical purity ＞96％ during a 0.5-24 h time period.Biological experiments exhibited rapid clearance of 125I-FIAU from the blood pool.125I-FIAU was mostly excreted by kidneys.125I-FIAU in myocardium dropped conspicuously after 8 h and there was hardly retention at 24 h.We were led to concluded that the new method of radioiodinization of FTAU for the preparation of 125I-FIAU is easy,highly effective and stable in vivo.The biodistribution of 125I-FIAU in Kunming mice showed it can serve as an imaging probe for myocardial reporter genes.

Purpose::Shaping and assembling contemporary external fixators rapidly for the severe mandibular fractures remains a challenge, especially in emergency circumstance. We designed a novel external fixator that incorporates universal joints to provide the stabilization for mandibular comminuted fractures. This study aims to confirm the efficacy of this novel external fixator through biomechanical tests in vitro and animal experiments. Methods::In vitro biomechanical tests were conducted using 6 fresh canine with mandibular defect to simulate critical comminuted fractures. Three mandibles were stabilized by the novel external fixator and other mandibles were fixed by 2.5 mm reconstruction plates. All fixed mandibles were subjected to loads of 350 N on the anterior regions of teeth and 550 N on the first molar of the unaffected side. The stability was evaluated based on the maximum displacement and the slope of the load-displacement curve. In animal experiments, 9 beagles with comminuted mandibular fractures were divided into 3 groups, which were treated with the novel external fixation, reconstruction plate, and dental arch bar, respectively. The general observation, the changes in animals’ weight, and the surgical duration were recorded and compared among 3 groups. The CT scans were performed at various intervals of 0 day (immediately after the surgery), 3 days, 7 days, 14 days, 21 days, and 28 days to analyze the displacement of feature points on the canine mandible and situation of fracture healing at 28 days. The statistical significance was assessed by the two-way analysis of variance test followed by the Bonferroni test, enabling multiple comparisons for all tests using GraphPad Prism10.1.0 (GraphPad Inc, USA). Results::The outcomes of the biomechanical tests indicated that no statistically significant differences were found in terms of the maximum displacement ( p = 0.496, 0.079) and the slope of load displacement curves ( p = 0.374, 0.349) under 2 load modes between the external and internal fixation groups. The animal experiment data showed that there were minor displacements of feature points between the external and internal fixation groups without statistic difference, while the arch bar group demonstrated inferior stability. The CT analysis revealed that the best fracture healing happened in the internal fixation group, followed by the external fixation and arch baring at 28 days after fixation. The external fixation group had the shortest fixation duration (25.67 ± 3.79) min compared to internal fixation ((70.67 ± 4.51) min, p < 0.001) and arch baring ((42.00 ± 3.00) min, p = 0.046). Conclusion::The conclusion of this study highlighted the efficacy and reliability of this novel external fixator in managing mandibular fractures rapidly, offering a viable option for the initial stabilization of comminuted mandibular fractures in the setting of emergency rescue.