Objective: To investigate the disease burden of occupational pneumoconiosis from 2009 to 2021 in Jinhua City, Zhejiang Province, so as to provide insights into formulating occupational pneumoconiosis prevention and control measures. Methods: Data on occupational pneumoconiosis in Jinhua City from 2009 to 2021 were collected through Occupational Disease and Health Hazard Monitoring Information System including demographic characteristics, disability level, age, pneumoconiosis type and stage, and analyzed years live dwith disability (YLD), years of life lost (YLL) and disability adjusted life years (DALY) by different genders, pneumoconiosis stages, pneumoconiosis types, ages and disability levels. Results: A total of 244 occupational pneumoconiosis cases were diagnosed in Jinhua City from 2009 to 2021, of which 225 cases were male, accounting for 92.21%. The median age of onset was 44.50 (interquartile range, 23.00) years. There were 229 deaths, with a median age of 78.00 (interquartile range, 13.00) years. The DALY was 3 791.88 person-years, YLD was 2 428.21 person-years (64.04%) and YLL was 1 363.67 person-years (35.96%). The YLD was 3 647.8 person-years in men, which was higher than 144.08 person-years in women (P<0.05). The YLD of asbestosis cases was lower than that of silicosis, coal workers' pneumoconiosis and other pneumoconiosis (P<0.05). The YLL was not statistically significant in the stage and type of occupational pneumoconiosis (P>0.05). The YLD was higher among cases at ages of less than 40 years, and lower among cases at ages of 60 to 69 years and 70 years and over (P<0.05); the YLL was lower among cases at ages of 70 years and over (P<0.05). The cases with second/third level of disability had the highest YLD, followed by the cases with fourth/fifth level of disability, and the cases with sixth/seventh level of disability had the lowest YLD (P<0.05). Conclusions The disease burden of occupational pneumoconiosis in Jinhua City from 2009 to 2021 is mainly induced by disability, and the disease burden caused by silicosis is the highest. With the progress of pneumoconiosis stages and disability levels, the life loss continues to increase.

Objective To study the relationship of microRNA-145(miR-145) and CD44 in the hepatocellular carcinoma(HCC).Methods 13 clinical samples of HCC tissues and corresponding normal liver tissues were collected at department of General Surgery,Second Affiliated Hospital of Fujian Medical University from October 2015 to June 2016.The patients with positive expression of CD44 were studied.The expression levels of miR-145 and CD44 in HCC tissues and corresponding normal tissues were detected by real-time quantitative PCR.Western blot was performed to detect the expression of CD44 in HCC cells Hep G2 and SNU423.Biological information methods predicted whether miR-145 and CD44 have a targeted relationship.CD44 expression levels were detected after high expression of miR-145 in HCC cell line with positive expression of CD44.The vector and luciferase reporter genes were constructed to verify the interaction between miR-145 and CD44.The effects of miR-145 on proliferation in HCC cell lines with positive and negative CD44 expression were examined by tetramethylazoazole salt (MTT) assay.Results 8 of the 13 patients showed positive CD44 expression in HCC tissues.Compared with normal liver tissues,the relative expression of miR-145 in HCC tissues was significantly lower (0.998±0.010 vs.0.503±0.046,P＜0.05),and the relative expression of CD44 was higher (0.996±0.005 vs.1.878±0.108,P＜0.05).Bioinformatics suggested that miR-145 had a targeted relationship with CD44.High expression of miR-145 can significantly reduce the expression level of CD44 mRNA in HCC cell SNU423 (0.941±0.010 vs.0.515±0.021,P＜0.05) and down-regulate the expression of CD44 protein.Confirmed by luciferase reporter assay,CD44 is the target gene of miR-145.After transfection with miR-145 mimics,the proliferation of CD44 positive cell SNU423 was significantly inhibited (P＜0.05).Conclusions miR-145 can affect the proliferation of CD44 positive HCC cells by regulating the expression of CD44,which may be one of the pathogenesis of HCC.

Objective : To investigate the characteristics and the chronic health risks of metals in fine particulate matter（PM2.5） of Wucheng District,Jinhua . Methods: The PM2.5 samples were collected in Wucheng District of Jinhua from the year 2015 to 2017.Chromium(Cr), manganese (Mn),nickel(Ni),arsenic(As),selenium(Se),cadmium(Cd),antimony(Sb),lead(Pb),beryllium(Be),aluminum(Al),thallium（Tl）and mercury（Hg） were measured by inductively coupled plasma mass spectrometry（ICP-MS）. The health risks of the metals were assessed based on the standard method recommended by United States Environmental Protection Agency . Results: From 2015 to 2017,the average concentration of PM2.5 in Wucheng District was（53.42±26.95）μg/m3,and the average concentration of PM2.5 in each season and each year were significantly different（P<0.05）. The median（interquartile range）concentration of metal elements in PM2.5 was 136.66（117.14）ng/m3,with higher concentration of Al,Pb,Mn,Cd and Se. From 2016 to 2017,the average concentration of Cd exceeded the reference limit（5.00 ng/m3）. The median （interquartile range） concentration of metal elements in PM2.5 in winter was 175.12（132.45）ng/m3,the highest,and in summer was 92.55（52.81）ng/m3,the lowest. The total hazard quotient（HQ）of nine kinds of metal elements in PM2.5 was 2.90;the HQ of As,Be,Ni,Se,Hg,Al,Mn and Sb were all less than 1,except Cd. The total carcinogenic risk of five kinds of metal elements in PM2.5 was more than 10-6,among which the carcinogenic risk of As and Cd were more than 10-6,and the carcinogenic risk of Be,Pb and Ni were less than 10-6 . Conclusion The concentrations of Al,Pb,Mn,Cd and Se in PM2.5 of Wucheng District were higher and the concentration of Cd exceeded the reference limit. The non-carcinogenic and carcinogenic risk of Cd were both higher,the carcinogenic risk of As was also higher.

Objective: To understand the health risk of drinking water in rural areas of Jinhua and to provide evidence for water sanitary management in rural areas. Methods: Totally 2 032 samples of drinking water in rural areas of Jinhua were collected from 2016 to 2018. According to GB/T 5750-2006 Standard Examination Methods for Drinking Water,five chemical carcinogens（As,Cd,Cr6+,CHCl3 and CCl4）and twelve non-carcinogenic chemicals（Pb,Hg,Se、CN-、F-、NO3-、Al、Fe、Mn、Cu、Zn and NH3-N）were detected. The health risk assessment in rural drinking water was conducted by United States Environmental Protection Agency（USEPA）model. Results: The total health risk,total carcinogenic risk and total non-carcinogenic risk of rural drinking water caused by the seventeen chemicals were 34.8×10-6/a,34.80×10-6/a and 6.65×10-9/a,respectively. The carcinogenic risk of five chemical carcinogens accounted for 99.98% of the total health risk,and the carcinogenic risk of Cr6+ accounted for 89.95% of the total health risk. The total health risk of the fully processed,partially processed and unprocessed water samples were 31.68×10-6/a,34.78×10-6/a and 34.77×10-6/a,respectively. The total health risk of finished water and peripheral water were 34.79×10-6/a and 34.82×10-6/a. Conclusion The health risk of drinking water in rural areas of Jinhuacaused by chemicals is low. The hexavalent chromium has the highest health risk and need more attention to be paid on.

Objective To investigate clinical efficacy of lateral tibia bone removal micro vessel regeneration combined with hyperbaric oxygen (HBO) in the treatment of diabetic foot ulcer.Methods A retrospective analysis was made on the clinical practice of lateral tibia bone removal micro vessel regeneration combined with HBO in 21 patients (the treatment group)with diabetic foot ulcer who received treatment in the hospital from November 2015 to March 2017.The patients in the treatment group were compared with the 21 patients (the control group) with diabetic foot ulcer who were treated with HBO at the same period.For the patients in the treatment group,a bone window with an area of about 2 cm × 10 cm was performed at medial surface of the affected lateral tibia,and a special external fixation lateral traction frame was placed and debridement was performed on the affected foot at the same time.On the first day after surgery,the patients received HBO therapy with a pressure of 0.20 MPa,once a day,10 days a treatment course,with a total of 3 courses.On the fifty day after surgery,the bone window was slowly removed laterally (1 mm/day).For the patients in the control group,debridement of the affected foot was performed,and on the first day after surgery,HBO therapy was also implemented in the control group with the same treatment scheme as the treatment group.Before surgery and 3 months after surgery,corresponding dada of healing time,ankle brachial index (ABI) and Michigan neuropathy sensation instruments (MNSI) were closely observed in the patients of the 2 groups.Results The patients of the two groups all had medical followed-ups for an average of 9.3 months.In the control group,the wound of one patient with Wagner Ⅴ failed to heal and in the end had amputation,but the wound of the remaining patients all healed,with an average healing time of (39.52 ± 8.43) days.The wound of the treatment group all healed,with an average healing time of (31.74 ± 6.12) days.Three months after surgery,the ABI level of the treatment group increased from pre-surgical level 0.56 ± 0.18 to post-surgical level 0.94 ± O.16,and the MNSI level decreased from pre-surgical level 5.92 ± 1.13 to post-surgical level 4.11 ± 1.25.Three months after surgery,the ABI level of the control group increased from pre-surgical level 0.54 ±0.21 to post-surgical level 0.81 ±0.20,and the MNSI level decreased from pre-surgical level 5.74 ± 1.26 to post-surgical level 4.98 ± 1.34.Statistical significance could be noted in wound healing time when comparisons were made between the two groups.Three months after surgery,statistical significance could also be found in ABI and MNSI levels as compared with those detected before surgery.The treatment group was superior to the control group,also with statistical significance.Conclusions Lateral tibia bone removal micro vessel regeneration could be used to reconstruct vasoganglion below lower leg and promote surrounding vessel and nerve function recovery.Combined with HBO therapy,it could promote wound surface healing,with the advantages of simple surgery,accurate curative effect,high success rate of limb-salvage.For this reason,it was one of the ideal methods for the treatment of diabetic foot ulcer.

Objective To investigate clinical efficacy of lateral tibia bone removal micro vessel regeneration combined with hyperbaric oxygen (HBO) in the treatment of diabetic foot ulcer.Methods A retrospective analysis was made on the clinical practice of lateral tibia bone removal micro vessel regeneration combined with HBO in 21 patients (the treatment group)with diabetic foot ulcer who received treatment in the hospital from November 2015 to March 2017.The patients in the treatment group were compared with the 21 patients (the control group) with diabetic foot ulcer who were treated with HBO at the same period.For the patients in the treatment group,a bone window with an area of about 2 cm × 10 cm was performed at medial surface of the affected lateral tibia,and a special external fixation lateral traction frame was placed and debridement was performed on the affected foot at the same time.On the first day after surgery,the patients received HBO therapy with a pressure of 0.20 MPa,once a day,10 days a treatment course,with a total of 3 courses.On the fifty day after surgery,the bone window was slowly removed laterally (1 mm/day).For the patients in the control group,debridement of the affected foot was performed,and on the first day after surgery,HBO therapy was also implemented in the control group with the same treatment scheme as the treatment group.Before surgery and 3 months after surgery,corresponding dada of healing time,ankle brachial index (ABI) and Michigan neuropathy sensation instruments (MNSI) were closely observed in the patients of the 2 groups.Results The patients of the two groups all had medical followed-ups for an average of 9.3 months.In the control group,the wound of one patient with Wagner Ⅴ failed to heal and in the end had amputation,but the wound of the remaining patients all healed,with an average healing time of (39.52 ± 8.43) days.The wound of the treatment group all healed,with an average healing time of (31.74 ± 6.12) days.Three months after surgery,the ABI level of the treatment group increased from pre-surgical level 0.56 ± 0.18 to post-surgical level 0.94 ± O.16,and the MNSI level decreased from pre-surgical level 5.92 ± 1.13 to post-surgical level 4.11 ± 1.25.Three months after surgery,the ABI level of the control group increased from pre-surgical level 0.54 ±0.21 to post-surgical level 0.81 ±0.20,and the MNSI level decreased from pre-surgical level 5.74 ± 1.26 to post-surgical level 4.98 ± 1.34.Statistical significance could be noted in wound healing time when comparisons were made between the two groups.Three months after surgery,statistical significance could also be found in ABI and MNSI levels as compared with those detected before surgery.The treatment group was superior to the control group,also with statistical significance.Conclusions Lateral tibia bone removal micro vessel regeneration could be used to reconstruct vasoganglion below lower leg and promote surrounding vessel and nerve function recovery.Combined with HBO therapy,it could promote wound surface healing,with the advantages of simple surgery,accurate curative effect,high success rate of limb-salvage.For this reason,it was one of the ideal methods for the treatment of diabetic foot ulcer.

Objective To explore the process of clinical treatment of senile intertrochanteric fractures in patients with closed reduction and internal fixation,to analyze the related factors leading to operation failure,and to lay the foundation for the clinical treatment in Department of Orthopedics.Methods 100 elderly patients with intertro-chanteric fracture were treated with closed reduction and internal fixation,and the related factors leading to the failure of the operation were analyzed.Results Through the statistics of all patients,7 cases were found in patients with internal fixation failure.The internal fixation failure rates of the patients with 4 ~6 class Singh index,basic diseases, TAD >25mm,and the using of hormone drugs were significantly higher than those of the patients with 1 -3 class Singh index,basic diseases,TAD≤25mm,and no using hormone drugs,the differences were statistically significant (χ2 =6.246,4.532,4.532,6.439,all P <0.05).And the fracture type,Singh index,basic diseases,TAD >25mm and Cleveland partition were internal fixation failure risk factors,the difference was statistically significant(all P <0.05).Conclusion In the application of closed reduction and internal fixation for the treatment of intertrochanteric fractures in the elderly patients,the fracture type,Singh index,basic disease,TAD >25mm and Cleveland partition can be used as the risk factors of internal fixation failure.

Objective To explore the protective effect of thyroxin on severe traumatic brain injury of brain tissue by observing the effect of thyroxin on neuronal apoptosis,serum neuronal specific enolase(NSE),interleukin-6 (IL-6) and serum FT3 and FT4.Methods A total of 90 SD rats was randomly divided into control group,model group,low dosage of levothyroxine sodium tablets group,moderate dosage of levothyroxine sodium tablets group and high dosage of levothyroxine sodium tablets group,18 rats in each group.The animal model was reproduced by referring to Feeney's free fall impact modeling.Intragastric administration was performed at 6 h after injury.The levels of neuronal apoptosis and serum NSE,IL-6,FT3 and FT4 were detected by TUNEL method,ELISA method and radioimmunoassay at 24,72,168 h after intragastric administration.Results (1) After severe traumatic brain injury,the levels of serum FT3 and FT4 were under the normal and the level of FT4 was decreased to the lowest at 168 h.Thyroxine could increase the levels of FT3 and FT4.(2) Significant neuronal apoptosis was observed in rats with severe craniocerebral injury,and the apoptosis continued until 168 h.Moderate and high dose of thyroxine could improve neuronal apoptosis within 24 h,while low dose of thyroxine changed within 168 h.(3) The levels of serum NSE and IL-6 were increased significantly in rats after severe traumatic brain injury until 168 h,and they could be decreased by moderate and high dose of thyroxine within 72 h.Conclusion Exogenous thyroxine can protect brain tissue in rats with severe traumatic brain injury.

Objective To explore the gastric tube indwelling with different length, in order to find out the best length for stroke patients. Methods A total of 182 stroke patients with enteral nutrition by nasogastric tube were randomly assigned into control group (n=58), observation group A (n=60) and observation group B(n=64). The indwelling length of nasogastric tube was from eyebrows to earlap then mucronate cartilage in the control group (45-55 cm); based on this length, additional 15 cm was extended in observation group A (60-70 cm);the length for observation group B was 55-65 cm from eyebrows to navel. The situation of gastric tube inserting, the incidence of regurgitation, bucking and aspiration and the residual gastric volume in three groups were compared. Results A total of 53 cases (91. 38%) of the control group had gastric tube ends at the cardia;in the observation group, 44 cases (73. 33%) of group A had gastric tube ended at the pylorus, and 55 cases (85. 94%) of observation group B in the body of the stomach. The incidence of regurgitation, bucking and aspiration in observation group A and group B were both significant lower than those of the control group (P<0.01), but the residual gastric volumes in two groups were more than that of the control group (P <0. 01);there were no significant differences between group A and group B in residual gastric volume and the incidence of regurgitation, bucking and aspiration (P >0. 05). However, there were 8 cases (13. 33%) of gastric tube twisting or knotting in stomach in group A, and 2 cases ( 3. 33%) of gastric tube entering the duodenum. Conclusions Indwelling gastric tube with the length of 55 -65 cm ( from eyebrow to navel) is simple and reasonable for stroke patients in patients with different height, so it is worthy of promotion in clinical practice.

We analyzed the whole genome coding sequence of Volvariella volvacea to study the pattern utilization of codons by Codon W 1.4.2. As results, 24 optimal codons were identified. Moreover, the frequency of codons usage was calculated by CUSP program. We compared the frequency of codons usage of V. volvacea with other organisms including 6 modal value species (Homo sapiens, Saccharomys cerevisiae, Arabidopsis thalian, Mus musculus, Danio rerio and Drosophila melanogaster) and 4 edible fungi (Coprinopsis cinerea, Agaricus bisporus, Lentinula edodes and Pleurotus ostreatus). We found that there were less differences in 3 edible fungi (excluding Pleurotus ostreatus) than 6 modal value species, comparing with the frequency of codons usage of V. volvacea. With software SPSS16.0, cluster analysis which showed differences in the size of codon bias, reflects the evolutionary relationships between species, which can be used as a reference of evolutionary relationships of species. This was the first time for analysis the codon preference among the whole coding sequences of edible fungi, serving as theoretical basis to apply genetic engineering of V. volvacea.
Agaricales ; genetics ; Animals ; Arabidopsis ; genetics ; Cluster Analysis ; Codon ; DNA, Fungal ; genetics ; Drosophila melanogaster ; genetics ; Humans ; Mice ; Saccharomyces cerevisiae ; genetics ; Software ; Volvariella ; genetics ; Zebrafish ; genetics