Monitoring results of coal-burning-borne endemic fluorosis in Yunnan Province in 2020 / 中华地方病学杂志

Objective:To learn about the current situation of prevention and control of coal-burning-borne endemic fluorosis (coal burning fluorosis for short) in Yunnan Province, and comprehensively evaluate the implementation effect of prevention and control measures.Methods:From August to November 2020, according to the requirements of the Monitoring Program of Yunnan Province for Coal-burning-borne Endemic Fluorosis (2019 edition), monitoring was carried out in all natural villages in the disease areas of 13 counties (cities and districts, hereinafter referred to as counties) of the province, and 30 households were selected from each natural village to monitor the use of stoves and the formation of related healthy living behaviors. At the same time, children aged 8 - 12 years in the natural villages in the disease areas were examined for the prevalence of dental fluorosis. The evaluation for control and elimination of disease areas was carried out in accordance with the Evaluation Approach for Control and Elimination of Priority Endemic Diseases (2019 edition).Results:A total of 392 244 households were investigated, and the rates of qualified improved stoves, the correct utilization of qualified improved stoves and correct drying of corn and pepper were 99.42% (389 982/392 244), 99.70% (388 796/389 982) and 99.07% (388 579/392 244), respectively. A total of 227 057 children aged 8 - 12 years were examined, 9 413 children of dental fluorosis were detected, the detection rate of dental fluorosis was 4.15%, the dental fluorosis index was 0.10, and the prevalence intensity was negative. Taking the county as a unit, except Fuyuan and Zhenxiong, which reached the control standard of the disease area, the remaining 11 counties reached the elimination standard.Conclusion:The prevention and control measures on coal burning fluorosis are implemented well in Yunnan Province and healthy lifestyle has gradually taken shape, with the overall condition of the disease reduced.

Outcomes and prognostic factors of differentiated thyroid cancer with bone metastasis / 中国辐射卫生

@#<b>Objective</b> To investigate the outcomes and prognostic factors of differentiated thyroid cancer (DTC) with bone metastasis. <b>Methods</b> A retrospective study was conducted on 108 DTC patients with bone metastasis who were treated in the Cancer Hospital of Chinese Academy of Medical Sciences. Kaplan-Meier survival curves were generated. Log-rank test and Cox proportional hazards model were used to screen the prognostic factors. The correlation between treatment and prognosis was analyzed. <b>Results</b> The median overall survival was 70 months. The 5-, 10-, 15-, and 20-year overall survival rates were 54.4%, 24.3%, 9.8%, and 4.3%, respectively. Univariate analysis showed improved prognosis in patients with single bone metastasis, without skeletal-relatedevents (SREs), and without cervical lymph node metastasis (<i>P </i>= 0.003-0.019). Patients who received combined treatments (<i>P</i> < 0.001) or ¹³¹I treatment alone (<i>P</i> = 0.109) showed better prognosis than those without ¹³¹I treatment. Multivariate analysis identified single bone metastases, SREs, and treatmentas independent prognostic factors. <b>Conclusion</b> In DTC patients with bone metastasis, good prognosis is significantly associated with single bone metastases, absence of SREs, and ¹³¹I therapy in combination with other therapeutic approaches.

A comparative study of transtibial approach and assisted medial approach for femoral tunnel near-isometric reconstruction of anterior cruciate ligament / 中华创伤骨科杂志

Objective:To compare the location and efficacy of femoral tunnel near-isometric reconstruction of anterior cruciate ligament (ACL) between the transtibial and assisted medial approaches.Methods:The clinical data of 47 patients were retrospectively analyzed who had been admitted by Department of Orthopaedics, The 904 Hospital of PLA for ACL rupture from January 2018 to December 2019. They were divided into 2 groups according to different surgical approaches. In groups A of 21 cases, there were 15 males and 6 females with an age of (29.5 ± 4.8) years and their ACL was reconstructed through the transtibial approach with adjustable Endobutton plate; in group B of 26 cases, there were 18 males and 8 females with an age of (31.2 ± 9.6) years and their ACL was reconstructed through the assisted medial approach with adjustable Endobutton plate. The 2 groups were compared in terms of location of femoral tunnel, Lysholm score and International Knee Documentation Committee (IKDC) score at the last follow-up, and anterior-posterior and rotational stability of the knee joint.Results:There was no significant difference in the preoperative general data between the 2 groups, showing comparability ( P>0.05). The 47 patients were followed up for 18 to 27 months (average, 22.3 months). As for the center of the inner opening of the femoral tunnel located by the four grid table method, the X-axis loci was 25.6% ± 2.5% and 26.7% ± 1.8% respectively in groups A and B, showing no statistically significant difference ( P>0.05) while the Y-axis loci 19.8% ± 2.0% and 30.6% ± 1.5% respectively in groups A and B, showing a statistically significant difference ( P<0.05). At the last follow-up, the lyholm scores were 90.9 ± 3.4 and 92.4 ± 3.9 and the IKDC scores 89.9 ± 3.5 and 90.2 ± 3.8 respectively in groups A and B, showing no significant difference between the 2 groups ( P>0.05). There was no significant difference either in the results of front drawer test, Lachman test or axial displacement test between the 2 groups ( P>0.05). Conclusion:In femoral tunnel near-isometric reconstruction of ACL, the transtibial approach can result in a tunnel location which is closer to the top of the condyle than the assisted medial approach, but both approaches can lead to satisfactory curative efficacy in the short postoperative period.

Epidemiological status and disease burden of chronic heart failure of 326 patients / 公共卫生与预防医学

Objective To investigate the prevalence of chronic heart failure in the adult hospitalized population and to analyze the related disease burden. Methods A total of 326 chronic heart failure samples from adult inpatients in Yanliang District, Xi'an City from 2019 to 2021 were selected for analysis. The three-year epidemic situation was described and analyzed, and the information on the disease burden (hospitalization and cost, quality of life) caused by heart failure was collected, and the disease burden was preliminarily analyzed. The study used the Chinese version of the Minnesota heart failure quality of life questionnaire (Minnesota lving with heart failure questionnaire, MLHFQ) to measure the quality of life of patients during hospitalization. Results Among the patients in this study, there were 196 male patients (60.12%) and 130 female patients (39.88%), with an average age of (57.14±13.64) years, and the highest incidence was in the age group of 60-69 years. The highest proportion of cardiac function grades I to IV is grade III, and the lowest is grade I; coronary atherosclerotic heart disease is the first cause, followed by hypertensive heart disease, cardiomyopathy and rheumatism. Sexual heart valve. In addition, the patients' primary disease duration was on average (7.14±3.05) years. 26.99% of patients had blood pressure exceeding the standard during hospitalization. The average length of hospitalization of the subjects was (12.97±4.52) d, and there were significant differences in the length of hospitalization between patients with different age groups, different cardiac function grades, different primary diseases, and different primary disease durations (all P<0.05). The median medical expenses of the subjects during hospitalization were 31 373.70 (15 250.65, 47 005.15) yuan. The quality of life scores of the patients with heart failure in this study were (44.65±14.47), (35.91±12.58) in the physical domain, and (53.66±19.81) in the emotional domain. And the quality of life of male patients is lower; the quality of life of heart failure caused by dilated cardiomyopathy and hypertension is lower; the level of cardiac function increases, and the quality of life score decreases. Conclusion In recent years, the elderly inpatients with chronic heart failure in Yanliang District, Xi'an City, the middle-aged, the high-level cardiac function, the patients with cardiomyopathy and hypertensive heart disease, and the patients with the normal course of the primary disease have longer hospitalization time and higher medical expenses. Male patients, patients with heart failure caused by dilated cardiomyopathy and hypertension, and patients with higher cardiac function grades have lower quality of life.

Early warning and accurate screening for the high-risk population of hepatocellular carcinoma / 临床肝胆病杂志

It is an effective way to improve the early diagnosis rate of hepatocellular carcinoma (HCC) in China by conducting standardized screening among the population with chronic liver diseases, achieving accurate stratification and standardized management of the population at a risk of HCC, and realizing the early warning for HCC through effective technical means. In clinical practice, the risk scoring models for liver cancer including aMAP can be used for preliminary risk screening of the population with chronic liver diseases to identify the population with a moderate or high risk of liver cancer. Novel serum biomarkers can be used to further screen out the population with an extremely high risk of liver cancer, and then imaging technology can be used for early diagnosis. Constant exploration and improvement of the "pyramid" screening and management mode through stratified enrichment may help to achieve the goal of improving early diagnosis rate of HCC and reducing HCC-related mortality.

Association of maternal adverse childhood experiences and parenting styles with emotional behavior problems in preschool children / 中国学校卫生

Objective@#To explore the role of parenting style in the association of maternal adverse childhood experiences (ACEs) and emotional behavior problems (EBPs) in preschool children, so as to provide a reference for the prevention and control of EBPs in children.@*Methods@#A total of 6 111 children aged 3-6 years old from 36 kindergartens in 3 areas of Anhui Province in June 2021, follow up data were collected in December 2021. Maternal ACEs, mother child relationship and children EBPs were respectively assessed using the Adverse Childhood Experiences International Questionnaire(ACEs-IQ), Parental Rearing Style Scale and the difficulty score factor in the Chinese Strength and Difficulty Questionnaire(SDQ). The Bootstrap was used to examine the mediation effect of maternal parenting styles.@*Results@#Maternal ACEs were positively associated with child SDQ difficulty scores( r = 0.28, P <0.01). Negative parenting (indulgent, permissive, authoritarian and inconsistent) were positively correlated with maternal ACEs scores( r =0.28, 0.30, 0.21, 0.31) and child SDQ difficulty scores( r =0.25, 0.20, 0.20, 0.28)( P <0.01). Positive parenting (democracy) was negatively correlated with maternal ACEs and SDQ difficulty scores( r =-0.09, -0.29, P <0.01). After adjusting for confounding factors, the results of the mediation effect test of Bootstraping procedure showed that maternal parenting styles (indulgent, democracy, permissive, authoritarian and inconsistent) played a mediation role in maternal ACEs and EBPs of preschool children, and the mediation effects were respectively 19.13%, 7.34%, 24.88%, 12.05% and 26.83%.@*Conclusion@#Parenting styles play a mediating role in the association of maternal ACEs and EBPs in preschool children, and improving mothers negative parenting styles is of great significance to reduce EBPs in the offspring of maternal ACEs.

Identification of chemical constituents in Zhachong Shisanwei Pills by UPLC-Q-TOF-MS/MS / 中国中药杂志

Zhachong Shisanwei Pills, composed of 13 Chinese medicinal materials, are used for treating the diseases such as hemiplegia, pain of muscles and bones, rheumatism, and joint pain. The chemical composition and pharmacodynamics of Zhachong Shisanwei Pills have not been reported. Ultra-performance liquid chromatography/quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS/MS) was employed to quickly identify the chemical components of Zhachong Shisanwei Pills, which was performed with Shim-pack GIST C_(18) column(4.6 mm×150 mm, 5 μm). The gradient elution was conducted with methanol-0.05% acetic acid as the mobile phase. Electrospray ionization mass spectrometry(ESI-MS) was carried out in both positive and negative ion modes. The compounds were identidied based on accurate relative molecular weight, fragment ion species, and the MS data of reference substances and in literature. In conclusion, a total of 98 compounds were identified, including 19 organic acids, 36 flavonoids, 13 volatile oils, 8 tannins, 5 2-(2-phenylethyl)chromones, 5 amino acids, 3 sesquiterpenoids, 3 alkaloids, and 2 other compounds. This study characte-rized the chemical components of Zhachong Shisanwei Pills rapidly for the first time, laying a foundation for further research on the pharmacodynamic material basis and quality evaluation.

A Report of Chigger Mites on the Striped Field Mouse, Apodemus agrarius, in Southwest China

Based on the field investigations in 91 investigation sites (counties) in southwest China between 2001 and 2019, the present paper reported the chigger mites on A. agrarius mice in southwest China for the first time by using a series of statistical methods. From 715 striped field mice captured in 28 of 91 investigated sites, only 255 chiggers were collected, and they were identified as 14 species, 6 genera in 3 subfamilies under 2 families. Of 715 A. agrarius mice, only 24 of them were infested with chigger mites with low overall prevalence (PM=3.4%), overall mean abundance (MA=0.36 mites/host) and overall mean intensity (MI=10.63 mites/host). The species diversity and infestation of chiggers on A. agrarius were much lower than those previously reported on some other rodents in southwest China. On a certain species of rodent, A. agrarius mouse in southwest China seems to have a very low susceptibility to chigger infestations than in other geographical regions. Of 14 chigger species, there were 3 dominant species, Leptotrombidium sialkotense, L. rupestre and Schoengastiella novoconfuciana, which were of aggregated distribution among different individuals of A. agrarius hosts. L. sialkotense, one of 6 main vectors of scrub typhus in China, was the first dominant on A. agrarius. The species similarity of chigger mites on male and female hosts was low with CSS=0.25, and this reflects the sex-bias of different genders of A. agrarius mice in harboring different chigger species.

Clinical Efficacy of Modified Shentong Zhuyutang in Treatment of Acute Discogenic Low Back Pain Due to Wind-Cold and Stasis Obstruction Syndrome / 中国实验方剂学杂志

Objective:To evaluate of modified Shentong Zhuyutang combined with celecoxib capsules in the treatment of acute discogenic low back pain due to wind-cold and stasis obstruction sydrome. Method:One hundred and forty eligible patients were randomly divided into control group （70 cases） and observation group （70 cases）. Patients in both groups took the celecoxib capsules orally， 200 mg/time. On this basis， patients in the control group were further treated with Tongluo Huoxue capsule orally， 6 capsules/time， 3 times/day， while those in the observation group received the modified Shentong Zhuyutang， 1 bag/day， for three weeks. The short-form McGillpain questionnaire （SF-MPQ）， including pain rating index （PRI）， present pain intensity （PPI）， and visual analog scale （VAS）， Oswestry disability index （ODI）， wind-cold obstruction and stasis syndrome， and abilities of daily living （ADL） scoring and the Schober's test were conducted before and after treatment. The tumor necrosis factor-<italic>α</italic> （TNF-<italic>α</italic>）， interleukin-1<italic>β</italic> （IL-1<italic>β</italic>）， IL-6， thromboxane B₂ （TXB₂）， and 6-keto prostaglandin F₁<italic>_α</italic> （6-keto-PGF₁<italic>_α</italic>） levels before and after treatment were measured， followed by the safety evaluation. Result:The PRI， VAS， and PPI scores in SF-MPQ of the observation group were reduced in contrast to those in the control group （<italic>P</italic><0.01）. The wind-cold and stasis obstruction syndrome and ODI scores in the observation group also declined as compared with those of the control group （<italic>P</italic><0.01）， while the ADL and Schober's test scores were elevated （<italic>P</italic><0.01）. The TNF-<italic>α</italic>， IL-1<italic>β</italic>， IL-6， and TXB₂ levels in the observation group were lower than those in the control group （<italic>P</italic><0.01）， whereas the 6-keto-PGF₁<italic>_α</italic> was higher （<italic>P</italic><0.01）. The excellent and good rate of the observation group was （51/63） 80.95%， significantly better than （39/63） 61.90% of the control group （<italic>χ</italic>²＝5.601， <italic>P</italic><0.05）. No adverse reactions occurred after the intake of Chinese medicinal prescriptions. Conclusion:The modified Shentong Zhuyutang combined with celecoxib capsules is efficient and safe in inhibiting inflammation， easing back pain， enhancing lumbar spine mobility， and improving the ADL of patients with acute DLBP of wind-cold obstruction syndrome.

Clinical Efficacy of Modified Bushen Huoxuetang Combined with LCP in Treatment of Nonunion of Limb Long Bone Shaft Fracture / 中国实验方剂学杂志

Objective:To discuss the clinical efficacy of modified Bushen Huoxuetang combined with autologous bone grafting and locking compression plate （LCP） in treating nonunion of long bone fractures， and the effect on microcirculation， osteogenic differentiation factor and bone metabolism index. Method:A total of 70 patients were randomly divided into control group and observation group by random number table， with 35 cases in each group. Patients in both groups received LCP. Patients in control group got Dieda Shenggu granule， 10 g/time， 1 time/day. Patients in observation group got Bushen Huoxuetang， 1 dose/day. The course of treatment lasted for 3 months， and 3-month follow-up data were recorded. On a weekly basis， the main symptoms， such as pain， tenderness， longitudinal percussion pain and swelling were checked， and the time of disappearing of main symptoms and signs were compared. On a weekly basis， a X-ray examination was performed for callus formation and fracture line， and the fracture healing time was recorded. Before and after treatment， Fugl-Meyer （FMA） was scored， and levels of fibrinogen （FIB）， whole blood viscosity （BV） （high shear， low shear）， plasma viscosity （PV）， platelet aggregation rate （PAR）， <italic>D</italic>-Dimer （<italic>D</italic>-D）， bone morphogenetic protein-2 （BMP-2）， BMP-7， insulin-like growth factor-1 （IGF-1）， vascular endothelial growth factor （VEGF）， transforming growth factor-<italic>β</italic>₁ （TGF-<italic>β</italic>₁）， osteocalcin （BGP）， osteoprotegerin （OPG）， procollagen type Ⅰ N-terminal propeptideserum amino pro peptide （PINP）， serum type 1 collagen cross-linked C-terminal peptide （S-CTX） and serum tartrate resistant acid phosphatase （TRACP） of type I procollagen were detected， and the safety was evaluated. Result:Disappearance time of symptoms and signs and fracture healing time in observation group were all lower than those in control group （<italic>P</italic><0.01）. At the third month after treatment， and during the three-month follow-up， scores of callus and FMA （upper and lower limbs） in observation group were all higher than those in control group （<italic>P</italic><0.01）. Levels of <italic>D</italic>-D， FIB， PAR， BV and PV （high-cut and low-cut）， BMP-2， BMP-7， IGF-1， VEGF， TGF-<italic>β</italic>₁， S-CTX and TRACP were all lower than those in control group （<italic>P</italic><0.01）， whereas levels of BGP， OPG and PINP were higher than those in control group （<italic>P</italic><0.01）. The curative effect of fracture healing was better than that of control group （<italic>Z</italic>=1.977， <italic>P</italic><0.05）. And the limb function recovery was superior to that in control group （<italic>Z</italic>=1.970， <italic>P</italic><0.05）. Conclusion:Based on autogenous bone and LCP， modified Bushen Huoxuetang can promote the fracture healing， shorten the course of disease， and promote the recovery of limb function， with a good clinical efficacy. It can improve microcirculation， promote the expression of osteogenic differentiation factor， regulate bone metabolism， and play a role in promoting fracture healing， with a safety in clinical use.

Effects of Bilateral Arm Transcutaneous Electrical Acupoint Stimulation on Upper Limb Function for Subacute Stroke Hemiplegic Patients / 中国康复理论与实践

Objective:To explore the effects of bilateral arm transcutaneous electrical acupoint stimulation (TEAS) based on mirror therapy (MT) on upper limb function of subacute stroke hemiplegic patients. Methods:From September, 2017 to October, 2019, 48 subacute stroke hemiplegic patients were randomly divided into control group (n = 24) and experimental group (n = 24). All the patients accepted routine rehabilitation and MT, while the experimental group received bilateral arm TEAS and the control group received sham TEAS, for four weeks. They were assessed with Fugl-Meyer Assessment-Upper Extremity (FMA-UE), Action Research Arm Test (ARAT), Wolf Motor Function Test (WMFT) and modified Barthel Index (MBI) before and after treatment. Results:All the scores of FMA-UE, ARAT, WMFT and MBI improved in both groups after treatment (|t| > 11.870, P < 0.001), and improved more in the experimental group than in the control group (|t| > 2.678, P < 0.05). Conclusion:Bilateral arm TEAS based on MT can promote the upper limb function of subacute stroke hemiplegic patients.

Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China

This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was Ŝ (R)=37e–(0.28R)2. The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chigger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographical regions with large host samples are recommended in the investigations of chigger mites.

Investigation of the metabolites of five major constituents from Berberis amurensis in normal and pseudo germ-free rats / 中国天然药物

Berberis amurensis (Berberidaceae) is a traditional Chinese medicine, which is often used to treat hypertension, inflammation, dysentery and enteritis. It contains alkaloids, mainly including berberine, berbamine, magnoflorine, jatrorrhizine and palmatine. Berberis amurensis extracts (BAEs) is often orally taken. Oral herbs might be metabolized by intestinal bacteria in the small intestine. However, the interaction between the herb and the gut microbiota is still unknown. In the current study, UPLC/Q-TOF-MS/MS combined with Metabolitepilot and Peakview software was used to identify the metabolites of BAEs in anti-biotic cocktail induced pseudo germ-free rats and normal rats. As a result, a total of 46 metabolites in normal rats were detected and its main metabolic pathways include demethylation, dehydrogenation, methylation, hydroxylation, sulfation and glucuronidation. Only 29 metabolites existed in pseudo germ-free rats. Dehydrogenated metabolites (M29, M30, M34 and M36), methylated metabolites (M33, M41 and M46) and other metabolites were not detected in pseudo germ-free rats. The result implied that the intestinal bacteria have an influence on the metabolism of BAEs. Furthermore, this investigation might contribute to the understanding of the metabolism of BAEs, and further promote its clinical application.

Analysis of the changes and characteristics of pediatric outpatient visits in a general hospital in Beijing before and after the COVID-19 pandemic / 北京大学学报(医学版)

OBJECTIVE@#To analyze the changes and characteristics of pediatric outpatient visits in a general hospital before and after the coronavirus disease (COVID-19) epidemic.@*METHODS@#Based on the registration data of pediatric outpatient visits in the information system (HIS)of Beijing Tsinghua Changgung Hospital, from January 1 2018 to December 31 2020, aged 0 to 16 years, we analyzed the changes of outpatient visits before and after the epidemic, focusing on respiratory infection including influenza. The relationship between the outpatient visits and age and quarterly distribution were also studied.@*RESULTS@#(1) Respiratory infection accounted for the majority of outpatient visits in 2018 and 2019 (60.6% and 60.5%, respectively). Non-respiratory infection accounted for the main proportion of outpatient visits in 2020, while respiratory infection accounted for only 47.4%. Annual respiratory infection visits, respiratory infectious diseases visits especially influenza visits all decreased significantly in 2020 compared with that in 2018 and 2019 (P < 0.05). (2)Respiratory infection visits were highest in the infant group, lowest in the school age group (P < 0.05) and highest in the fourth quarter each year. It decreased significantly in the second quarter of 2020 with statistical significance when compared with the other quarters of 2020(P < 0.05). (3)Influenza accounted for the highest proportion of respiratory infectious diseases visits in each year. It was highest in first quarter, which was significantly different from the other quarters of the year (P < 0.05). There were different distributions of influenza visits throughout 2018 and 2019, while it was only distributed in the first quarter and 99% in January in 2020.@*CONCLUSION@#The respiratory infection and influenza visits have decreased significantly in our pediatric outpatient department after the COVID-19 epidemic, which is considered closely related to the lifestyle and personal protection after the epidemic. It is recommended that health education on respiratory infection and influenza prevention should be strengthened, especially in winter and spring, to promote the development of good respiratory and hand hygiene habits.

Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China

This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was Ŝ (R)=37e–(0.28R)2. The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chigger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographical regions with large host samples are recommended in the investigations of chigger mites.

Relative Abundance of a Vector of Scrub Typhus, Leptotrombidium sialkotense, in Southern Yunnan Province, China

The chigger mite Leptotrombidium sialkotense is one of the 6 main vectors of scrub typhus in China. Before present study, L. sialkotense was found in some parts of Hunan province, China with a narrow geographical distribution. During field investigation 2016-2017, we found L. sialkotense in Jingha, southern Yunnan, China. Of 15 small mammal host species, L. sialkotense were collected from 6 species of the hosts. Rattus brunneusculus was a dominant host of L. sialkotense, from which 98.3% of the mites were collected. The chigger mite showed a relatively high infestation prevalence (PM=11.7%) and mean abundance (MA=0.5) in comparison with the rest 5 host species. These results reveal a certain host specificity of L. sialkotense to a rat R. brunneusculus. The mite L. sialkotense showed an aggregated distribution on the host (P<0.05). A positive correlation observed between L. sialkotense and the body length of hosts. There was a positive interspecific association between L. sialkotense and 2 other dominant vectors, L. deliense and L. scutellare.

Antimicrobial activities of chlorogenic acid and 13 main metabolites in vitro / 中草药

Objective: To compare with the antimicrobial activities of chlorogenic acid and its 13 main metabolites in vivo. Methods: Main metabolites were detected by broth microdilution method against clinical isolated strains including methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), non ESBLs-producting Escherichia coli (E-), extended-spectrum β-lactamase Escherichia coli (E+), Klebsiella pneumoniae (E-/E+), Acinetobacter baumannii, and Pseudomonas aeruginosa to compare with the minimal inhibitory concentrations value of chlorogenic acid. Results: For the most tested strains, the antibacterial activities of some major metabolites were enhanced, ranging from four to 66 times higher than chlorogenic acid. Benzoic acid, p-hydroxybenzoic acid, p-coumaric acid, dihydrocaffeic acid, and gallic acid were stronger than the other metabolites. Moreover, the antibacterial actions of dihydrocaffeic acid and gallic acid against MSSA and MRSA was increased 33-66 times respectively. Conclusion: Some main metabolites presented more potent antibacterial activities than chlorogenic acid, and chlorogenic acid may exert antibacterial effects through some of its metabolites.

Meta-analysis of calcium chemotherapeutic effect of anterior cervical subtotal vertebroplasty and posterior laminoplasty / 中国骨伤

OBJECTIVE@#To systematically assess the efficacy of anterior cervical corpectomy and fusion (ACCF) versus posterior laminoplasty (LAMP) for cervical ossification of posterior longitudinal ligament (OPLL).@*METHODS@#PubMed and EMBASE, Cochrane Library, CBM, CNKI, Wanfang and VIP were collected from 7 databases of ACCF, LAMP from 1970 to May 2018. According to the criteria, the articles were included and independently screened by two authors. The quality of the articles was assessed by using the MINORS scale (methodological index for non randomized studies). After extracting the data from the article, the JOA score, cervical curvature, operation time, bleeding volume, excellent and good rate, recovery rate, adverse events and secondary surgery were analyzed by using Review Manager 5.3 software.@*RESULTS@#Finally, a total of 22 articles with 1 678 patients were included in this Meta-analysis, with 810 patients in ACCF group and 868 patients in LAMP group. Meta analysis results showed that the ACCF group had higher postoperative JOA scores[MD=0.63, 95%CI(0.05, 1.20), = 0.03], higher excellent rate [=1.85, 95%CI (1.14, 3.02), =0.01] and higher recovery rate [=11.90, 95%CI (5.75, 18.05), =0.000 1]. But the LAMP group has a shorter operative time [MD=52.19, 95%CI (29.36, 75.03), <0.000 01], less complications [=1.56, 95%CI (1.03, 2.35), =0.04] and less reoperations [=3.73, 95%CI (1.62, 8.57), =0.002]. There was no significant different in postoperative lordosis [MD=3.15, 95%CI(-0.14, 6.43), =0.06] and blood loss[SMD= 0.26, 95%CI(-0.05, 0.57), =0.10] between two groups.@*CONCLUSION@#The recovery of functionof ACCF group was better, but operation time, complications and reoperations of LAMP group were all better than ACCF group. There was no difference in postoperative lordosis and intraoperative blood loss between two groups. However, there are some limitations in this study. Therefore, higher quality and larger sample size clinical studies are needed to further verify.

Effect of ozone oil for prevention and treatment of sorafenib-induced hand-foot skin reactions: a randomized controlled trial / 南方医科大学学报

OBJECTIVE@#To compare the effects of medical ozone oil and urea ointment for prevention and treatment of hand-foot skin reaction (HFSR) caused by sorafenib in patients with hepatocellular carcinoma (HCC).@*METHODS@#A total of 99 patients diagnosed with advanced HCC according to National Comprehensive Cancer Network (NCCN) who were scheduled to receive sorafenib treatment for the first time were enrolled in this study between April, 2018 and January, 2020. The patients were randomized into medical ozone oil group (@*RESULTS@#Eight patients were excluded for poor compliance or protocol violations, leaving a total of 91 patients for analysis, including 44 in medical ozone oil group and 47 in urea ointment group. Sixteen (36.4%) of patients in ozone oil group developed HFSR, a rate significantly lower than that in urea ointment group (57.4%; @*CONCLUSIONS@#Medical ozone oil can significantly reduce the incidence and severity of HFSR to improve the quality of life of HCC patients receiving sorafenib treatment.

Analysis of acupoint selection of plaster therapy in treatment of stable chronic obstructive pulmonary disease based on data mining / 中国中药杂志

This article analyze acupoint selection and characteristics of plaster therapy for stable chronic obstructive pulmonary di-sease(COPD) by data mining. The CNKI, VIP, CBM, WanFang, PubMed, EMbase, Cochrane Library were retrieved for collecting clinical studies of plaster therapy for stable COPD. After literature screening, a total of 46 systematic reviews were included. Frequency statistics, cluster analysis, and Apriori correlation analysis were used to analyze the pattern and characteristics of plaster therapy for stable COPD. The result showed that the main acupoints for stable COPD were BL13, Dingchuan, CV22, BL23 and BL20. The acupoints used are mainly concentrated on the chest and back. The most frequently used meridian is the bladder meridian. Analysis of the acupoints yielded 27 correlation rules. And cluster analysis grouped the high frequency acupoints into 5 categories. The results of the study showed that the current choice of acupoints is rather concentrated. "Local acupuncture points" and "matching points with front and back" were the main acupoint selection rules. The choice of acupuncture points reflected the traditional Chinese medicine treatment principle of strengthening healthy Qi to eliminate pathogenic factor, treating both manifestation and root cause of disease, and preventing measure taken after the occurrence of disease.