Objective Sanguisorba officinalis is the principal medicinal ingredient of Sicaokeyin gel. Gallic acid is commonly used as a key indicator component for evaluating the quality of Sanguisorba officinalis and its preparations. To establish a HPLC method for the determinant of gallic acid in Sicaokeyin gel. Methods With gallic acid as reference substance，HPLC analysis was performed on a Agilent Eclipse XDB-C₁₈ column （4.6 mm ×25 mm，5 μm） with methanol-0.05%phosphoric acid （5∶95） under isocratic elution. The flow rate was 1.0 ml/min and the detection wavelength was 272 nm. The column temperature was 30℃, the injection volume was 10 μl. Results Gallic acid showed good linear relationship in the range of 1.004-50.18 μg/ml （r=0.999 9）. The average recovery was 102.9% （n=9）. Conclusion The method was easy to operate; the result was accurate and reliable, which could be used for the quality control of sanguisorba officinalis in Sicaokeyin gel.

Osteoporosis can be induced by various factors including prolonged glucocorticoid usage, diminished estrogen levels, secondary hyperparathyroidism, and alterations in the microenvironment of bone tissue. The bone metabolism imbalance(osteogenic-lipogenic imbalance) plays a crucial role in the development of osteoporosis. This imbalance is primarily driven by an increase in the differentiation of bone marrow mesenchymal stem cells into adipocytes and a decrease in their differentiation into osteoblasts, thus forming the core of the osteogenic-lipogenic imbalance observed in osteoporosis. The bone morphogenesis protein(BMP) plays a crucial role in the regulation of the osteogenic-lipid balance in osteoporosis. This regulatory function is accomplished through both the Smad-dependent and Smad-independent pathways. This review centers on the Smad-dependent and Smad-independent pathways facilitated by BMP, offering a comprehensive overview of the potential mechanisms through which BMP-2, 4, 6, 7, and 9 contribute to the regulation of osteogenesis and lipid metabolism in osteoporosis via these pathways. In order to present novel insights for the identification of efficacious targets for clinical anti-osteoporosis medications.

Objective To understand the health-related quality of life (HRQOL) of migrant workers with pneumoconiosis who received basic medical treatment in Hunan Province. Methods A total of 613 migrant workers with pneumoconiosis who received basic medical treatment and assistance in Hunan Province was selected as the study subjects using stratified random sampling method. The European Quality of Life-5 Dimensions (EQ-5D) questionnaire was used to assess their HRQOL. Results The abnormality of the five dimensions of the EQ-5D health description system, from high to low, were as follows： daily activities, mobility, pain/discomfort, anxiety/depression, and self-care, with the abnormal rates of 50.9%, 46.8%, 41.1%, 21.0%, and 14.5%, respectively. The visual analogue scale (VAS) score of EQ-5D was (63.5±18.6) points. Patients with stage Ⅲ pneumoconiosis had high abnormality in mobility, daily activities, and pain/discomfort compared with those with stage Ⅰ and Ⅱ disease (all P<0.02). Patients in stage Ⅱ and Ⅲ of pneumoconiosis had higher incidence of anxiety/depression compared with those with stage I disease (all P<0.02). Patients with complications in addition to pneumoconiosis had higher abnormality in mobility, self-care, and pain/discomfort compared to those with simple pneumoconiosis or those eligible for lung lavage treatment (all P<0.02). Patients with simple pneumoconiosis had a higher incidence of anxiety/depression compared with those eligible for lung lavage treatment (P<0.02). Patients with stage Ⅲ pneumoconiosis had lower average VAS scores compared with stage Ⅰ and Ⅱ patients (all P<0.02). Patients with simple pneumoconiosis or those with complications had lower average VAS scores compared with those eligible for lung lavage treatment (all P<0.05). Conclusion The HRQOL of pneumoconiosis patients among migrant workers needs improvement, especially for patients with stage Ⅲ disease and those with complications. This study indicates the need of optimizing policies, raising the hospitalization expense limit for critically ill patients with stage Ⅲ pneumoconiosis or with complications, and improving their HRQOL.

Objective:To analyze the epidemiological characteristics of pneumoconiosis in Hunan Province.Methods:In November 2018, we collected the type of work, pneumoconiosis type, pneumoconiosis stage, length of service, age of onset and complications of pneumoconiosis cases diagnosed by Hunan occupational disease prevention and control hospital from January 2017 to October 2018. A total of 3 325 cases of pneumoconiosis were collected, including 651 cases (19.58%) of occupational pneumoconiosis and 2674 cases (80.42%) of clinically diagnosed pneumoconiosis. The measurement data were expressed by ± s. The comparison between groups was performed by independent sample t test and one-way ANOVA. Results:The age of 651 patients with occupational pneumoconiosis was 35.59-85.15 years old, the average age of onset was (54.27±8.29) years, and the average exposure to dust was (14.74±8.60) years. 2 674 cases of clinically diagnosed pneumoconiosis were 26.85~87.02 years old. The average age of onset was (55.26±7.38) years, and the average exposure time was (18.83±9.35) years. Compared with silicosis patients, coal workers' pneumoconiosis patients had longer exposure time, the difference was statistically significant ( P<0.05) , and the difference was statistically significant ( F=3.678, P<0.05) . There were no complications in 651 cases of occupational pneumoconiosis. Among 2 674 cases of clinically diagnosed pneumoconiosis, 710 cases (26.55%) had complications. Conclusion:Further attention should be paid to the clinical diagnosis of pneumoconiosis in Hunan Province.

Objective:To analyze the epidemiological characteristics of pneumoconiosis in Hunan Province.Methods:In November 2018, we collected the type of work, pneumoconiosis type, pneumoconiosis stage, length of service, age of onset and complications of pneumoconiosis cases diagnosed by Hunan occupational disease prevention and control hospital from January 2017 to October 2018. A total of 3 325 cases of pneumoconiosis were collected, including 651 cases (19.58%) of occupational pneumoconiosis and 2674 cases (80.42%) of clinically diagnosed pneumoconiosis. The measurement data were expressed by ± s. The comparison between groups was performed by independent sample t test and one-way ANOVA. Results:The age of 651 patients with occupational pneumoconiosis was 35.59-85.15 years old, the average age of onset was (54.27±8.29) years, and the average exposure to dust was (14.74±8.60) years. 2 674 cases of clinically diagnosed pneumoconiosis were 26.85~87.02 years old. The average age of onset was (55.26±7.38) years, and the average exposure time was (18.83±9.35) years. Compared with silicosis patients, coal workers' pneumoconiosis patients had longer exposure time, the difference was statistically significant ( P<0.05) , and the difference was statistically significant ( F=3.678, P<0.05) . There were no complications in 651 cases of occupational pneumoconiosis. Among 2 674 cases of clinically diagnosed pneumoconiosis, 710 cases (26.55%) had complications. Conclusion:Further attention should be paid to the clinical diagnosis of pneumoconiosis in Hunan Province.

OBJECTIVE:To observe clinical efficacy and safety of Compound xiongshao capsules in the treatment of diabetic peripheral neuropathy (DPN).METHODS:A total of 97 DPN patients selected from our hospital during Jun.2015-Apr.2016 were divided into group A (compound xiongshao treatment group,46 cases) and control group (51 cases) according to random number table.The latter was divided into group B (epalrestat+beraprost sodium group,12 cases),group C (fursultiamine+mecobalamin group,12 cases) and group D (epalrestat group,27 cases) according to clinical symptoms and economic situation of patients.Four groups were given antidiabetic drugs for blood glucose control.Based on it,group A was additionally given Compound xiongshao capsules 0.9 g,tid;group B was additionally given Epalrestat tablets 50 mg,tid+Beraprost sodium tablets 40 μg,tid;group C was additionally given Fursultiamine tablets 50 mg,tid+Mecobalamin tablets 0.5 mg,rid;group D was additionally given Epalrestat tablets 50 mg,tid.All groups were treated for 6 months.Clinical efficacies were observed.TCSS scores,motor nerve conduction velocity (MCV),sensory nerve conduction velocity (SCV),incubation period and amplitude of median nerve and common peroneal nerve,the levels of hemorheology indexes,blood glucose,glycosylated hemoglobin,blood lipid,serum creatinine were compared before and after treatment.The occurrence of ADR was recorded.RESULTS:Total response rates of group A and B (82.61％,83.33％)were significantly higher than those of group C and D (33.33％,66.67％),total response rate of group D was significantly higher than that of group C,with statistical significance (P＜0.05).Before treatment,there was no statistical significance in TCSS scores,MCV,SCV,incubation period and amplitude of median nerve,MCV and amplitude of common peroneal never,SCV,incubation period and amplitude of common peroneal never or whole blood high-shear viscosity among 4 groups (P＞0.05).After treatment,TCSS scores of group A,B and D were decreased significantly compared to before treatment,and those of group A and B were lower than those of group C and D,with statistical significance (P＜0.05).MCV,incubation period and amplitude of median nerve in group A and B,amplitude of median nerve in group C,MCV and amplitude of median nerve in group D were significantly better than before treatment;MCV,incubation period and amplitude of median nerve in group A and B were significantly better than group C and D,with statistical significance (P＜0.05).MCV,incubation period and amplitude of common peroneal never in group A,B,C were significantly better than before treatment,MCV and amplitude of common peroneal never in group A,B were significantly better than group C,D;the improvement of incubation period of common peroneal never in group A,B,D were significantly better than group C,with statistical significance (P＜0.05).SCV,incubation period and amplitude of median nerve,SCV and amplitude of common peroneal nerve in group A,B and D were significantly better than before treatment;SCV,incubation period and amplitude of median nerve,SCV and amplitude of common peroneal nerve in group A,SCV,incubation period and amplitude of median nerve and amplitude of common peroneal nerve in group B were significantly better than group C and D;SCV of median nerve in group D was significantly better than group C,with statistical significance (P＜0.05).Whole blood high-shear viscosity of group A was decreased significantly compared to before treatment,and significantly lower than those of group B,C and D,with statistical significance (P＜0.05).There was no statistical significance in total response rate and TCSS score between group A and B,and in the levels of blood glucose,glycosylated hemoglobin,blood lipid or serum creatinine among 4 groups (P＞0.05).No obvious ADR was found in 4 groups.CONCLUSIONS:Compound xiongshao capsules shows significant therapeutic efficacy for DPN,and improves nerve conduction velocity,incubation period and amplitude of median nerve and common peroneal nerve,whole blood high-shear viscosity.Its effect is similar to that of epalrestat combined with beraprost sodium,and better than those of fursultiamine combined with mecobalamin,epalrestat alone.It does not affect the blood glucose,blood lipid and serum creatinine levels with good safety.

Objective To study the changes in cesarean delivery rate (CSR) and indications against the background of two-child policy. Methods Maternal information and indications for cesarean delivery were retrospectively obtained from medical records of 62007 women who delivered at the Obstetrics and Gynecology Hospital of Fudan University between January 2013 and December 2016. Indications for cesarean section were divided into 16 categories, such as maternal or fetal indication, repeat cesarean section, maternal request, labor arrest disorders, fetal distress, and so on. Changes in CSR and the proportion of cesarean delivery for each indication were evaluated. One-way analysis of variance, Chi-square or Fisher's exact test were used for statistical analysis. The average annual percent change (AAPC) in cesarean delivery rate was calculated by Joinpoint Analyses software. Relative contribution of each indication to the overall increase or decrease in CSR was analyzed using the data of the years of 2013 and 2016. Results The CSR dropped from 45.2％ (6683/14798) in 2013 to 38.3％ (6546/17104) in 2016. The rate of cesarean delivery due to maternal request and labor arrest disorders decreased significantly (χ2=49.402 and 14.617, both P<0.05) .The rate of cesarean delivery due to labor arrest disorders in all cases decreased sharply from 14.7‰ in 2013 to 0.9‰ in 2016 at an annual decrease of 48.0％ (95％CI: - 67.6％- - 21.5％). It was also worth noting that the rate of cesarean delivery on maternal request in all cases decreased from 119.3 ‰ in 2013 to 40.7 ‰ in 2016 at an average annual decrease of 30.1％ (95％CI: - 31.3％- - 28.9％). Despite of a limited number of cesarean delivery cases for uterine scar caused by leiomyoma resection, its rate increased from 1.4 per 1000 deliveries in 2013 to 2.9 per 1000 deliveries in 2016 with the highest average annual increase of 32.3％ (95％CI: 10.1％-60.9％), followed by the rate of cesarean delivery due to maternal pyrexia, increasing from 6.6 per 1000 deliveries in 2013 to 16.4 per 1000 deliveries in 2016 at an average annual increase of 27.4％ (95％CI: 11.0％-46.5％), and the rate of cesarean delivery due to repeat cesarean section, increasing from 67.6 per 1000 deliveries in 2013 to 113.9 per 1000 deliveries in 2016 at an average annual increase of 19.0％ (95％CI: 5.0％-34.6％). The first two positive contributors to the total decrease of CSR were maternal request and labor arrest disorders (144.2％ and 27.7％, respectively), while the first two negative contributors were repeat cesarean section and maternal pyrexia (-102.3％ and -18.9％, respectively). Conclusions The CSR is reduced after the implementation of two-child policy through active control on maternal request and application of new partogram.

AIM To establish an HPLC method for the simultaneous content determination of four constituents in Qingzhiyi Tablets (Puerariae lobatae Radix,Phyllanthi Fructus,Salviae miltiorrhizae Radix et Rhizoma,etc.).METHODS The analysis of 50％ methanol extract of this drug was performed on a 30 ℃ thermostatic Kromasil C18 column (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of 0.1％ formic acid-methanol-acetonitrile flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 270 nm.RESULTS Gallic acid,puerarin,salvianolic acid B and tanshinone Ⅱ A showed good linear relationships within the ranges of 11.95-382.48,14.23-455.28,10.77-344.68 and 3.89-124.32 μg/mL,whose average recoveries were 99.96％,100.92％,98.87％ and 97.67％ with the RSDs of 1.09％,1.30％,1.11％ and 1.22％,respectively.CONCLUSION This sensitive,simple and accurate method can be used for the quality control of Qingzhiyi Tablets.

Objective To implement a two?level community?based health education pattern of schistosomiasis in residents of endemic areas in marshland and lake regions,so as to explore the suitable pattern of health education under hypo?endemic situa?tion. Methods Two schistosomiasis endemic villages in Jiangling County,Hubei Province were collected as study areas,and among which,one village was treated as an intervention group,where the two?level community?based health education pattern as well as regular control measures was implemented;the other village was a control group,where only regular control measures were implemented. The awareness rates on schistosomiasis control,the rates of correct behavior and the compliance rates of ex?amination,treatment and chemotherapy of the two groups before and after the intervention were compared. Results According to the results of the baseline survey in 2014,the awareness rates of schistosomiasis control of the intervention and control groups were 84.00%and 77.45%,respectively,the correct rates of behavior of the two groups were 72.00%and 63.73%,respectively, and the compliance rates of the treatment were 80.36%and 82.28%,respectively,there were no statistically significant differ? ences between all the above rates of the two groups(all P>0.05). After the intervention of the two?level community?based health education,the correct rates of behavior,and the compliance rates of examination and chemotherapy of the two groups were 92.31%and 80.37%,95.11%and 82.55%,84.13%and 63.64%,respectively,and the differences between all the rates above of the two groups were statistically significant(all P<0.05). When compared to those before intervention,the growing rates of the compliance rates of examination,treatment and chemotherapy of the intervention group were 20.97%,15.33%and 23.29%, respectively,while those of control group were 14.27%,4.17%,-3.77%,respectively,the growing rates of the intervention groups were higher than those of the control groups. Conclusions Through the two?level community?based pattern of health edu?cation,the compliance rates of examination and treatment of the residents have improved,and therefore,the pattern is suitable for popularization and application in marshland and lake regions.

PurposePifrrmann scoring based on T2WI can only evaluate intervertebral disc qualitatively and is easily affected by the surrounding environment and imaging parameters. The present study attempted to make a quantificational study on lumbar intervertebral disc degeneration by using MR T2 mapping sequence so as to improve its diagnosis.Materials and Methods Sagittal T1FSE, sagittal and axial T2FSE, sagittal T2 mapping sequence were performed on 265 lumbar intervertebral discs from 53 subjects. The MR imaging was analyzed and all the discs were classified according to Pifrrmann scoring. T2 relaxation time of the discs was calculated and statistical analysis was conducted on its correlation.Results Among the 265 discs, 5 (1.9%) were scored as Pfirrmann I, 153 (57.7%) were scored as Pfirrmann II, 86 (32.3%) were scored as Pfirrmann III, 20 (7.5%) were scored as Pfirrmann IV, 1 (0.38%) were scored as Pifrrmann V. The average anterior annulus T2 values showed no difference between every Pfirrmann grade (P>0.05), while the difference of average posterior annulus T2 values was significant between groups (P<0.05). The relaxation time of anterior annulus was signiifcantly shorter than that of posterior annulus in the discs of Pifrrmann II-IV, whilst the reverse occurred in the discs of Pifrrmann I (P<0.05). The differences of the relaxation time of nucleus pulposus T2 values were signiifcant between groups of Pifrrmann grade I to IV (P<0.05). The T2 relaxation time of each partition of nucleus pulposus (ROI2/ROI3, ROI3/ROI4, ROI2/ROI4) was signiifcantly correlated (r=0.86, 0.76 and 0.63,P<0.05), the T2 relaxation time of anterior annulus and posterior annulus had no correlation (r=0.09, P<0.05), and the nucleus pulposus T2 values and Pfirrmann grade were negatively correlated (r=-0.78,P<0.05).Conclusion MR T2 mapping can quantitatively evaluate the T2 relaxation time of lumbar intervertebral discs, and is signiifcantly correlated with Pifrrmann grades.