Identification of Scolopendra Dispensing Granules by Allele-specific PCR / 中国实验方剂学杂志

ObjectiveTo establish an allele-specific polymerase chain reaction （PCR） method for identifying Scolopendra dispensing granules， so as to ensure the quality and therapeutic effects of Scolopendra and its preparations. MethodThe primer interval suitable for the PCR was selected based on the cytochrome c oxidase subunit 3（COX-3） gene sequence of Scolopendra， and the single nucleotide polymorphism （SNP） loci of Scolopendra and its adulterants were mined from the interval for the design of specific primers. The samples of Scolopendra and its adulterants were collected. The PCR system was established and optimized regarding the annealing temperature， cycles， Taq enzymes， DNA template amount， PCR instruments， and primer concentrations， and the specificity and applicability of this method were evaluated. ResultThe PCR system was composed of 12.5 μL 2×M5 PCR Mix， 0.4 μL forward primer （10 μmol·L-1）， 0.4 μL reverse primer （10 μmol·L-1）， 2.5 μL DNA template， and 9.2 μL sterile double distilled water. PCR parameters： Pre-denaturation at 94 ℃ for 3 min， 30 cycles （94 ℃ for 20 s， 62 ℃ for 20 s， 72 ℃ for 45 s）， and extension at 72 ℃ for 5 min. After PCR amplification with the system and parameters above， the electrophoresis revealed a bright band at about 135 bp for Scolopendra and no band for the adulterants. ConclusionThe established allele-specific PCR method can accurately identify the medicinal materials， decoction pieces， and standard decoction freeze-dried powder of Scolopendra， as well as the intermediates and final products of Scolopendra dispensing granules， which is of great significance for ensuring the quality and clinical efficacy of Scolopendra and its preparations.

A Rapid PCR-RFLP Method for Assessing Heterozygosity of Murraya paniculata Germplasm / 中国实验方剂学杂志

ObjectiveTo establish a rapid method for evaluating the heterozygosity of Murraya paniculata germplasm materials and provide as a foundation for developing germplasm breeding and innovation measures for M. paniculata. MethodSingle nucleotide polymorphisms （SNPs） were screened from the genome resequencing data of 65 plants of M. paniculata. A self-written script was used to transform 20 SNPs into restriction fragment length polymorphism （RFLP） markers. Polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） was employed to detect the 20 RFLP markers in 12 M. paniculata germplasm accessions， and the heterozygosity of M. paniculata germplasm accessions was calculated based on the number of enzyme-cutting bands at the 20 RFLP marker sites. Plink was used to calculate the whole genome heterozygosity of 12 M. paniculata germplasm accessions， and the results obtained with different methods were compared. ResultThere was no significant difference in the heterozygosity calculated by the PCR-RFLP method and the genome resequencing method. The PCR-RFLP and genome resequencing methods identified 8 and 9 germplasm accessions， respectively， with a heterozygosity level less than 30%. Seven germplasm accessions with heterozygosity less than 30.00% were calculated by both methods. ConclusionThe PCR-RFLP method established in this study for evaluating the heterozygosity of M. paniculata germplasm demonstrates the precision of 87.5% and the accuracy of 77.8%. This method serves as a reference for developing heterozygosity evaluation methods in other medicinal plant germplasm resources.

Enzyme-linked Immunosorbent Assay in Quality Control of Chinese Medicines： A Review / 中国实验方剂学杂志

In the quality control of Chinese medicine， the detection of active components and toxic and harmful components are two important links. Although conventional methods such as high performance liquid chromatography and liquid chromatography-mass spectrometry can accurately quantify the above substances， they have shortcomings such as complicated operation， high costs， inability of detection at any time， difficult detection of insoluble and macromolecular substances. Enzyme-linked immunosorbent assay （ELISA） can adsorb antigens or antibodies on the surface of solid carriers and realize qualitative or quantitative analysis of targets by using the specific reactions of antigens and antibodies. This method is praised for the simple operation， high sensitivity， strong specificity， simple requirements for experimental equipment， a wide application range， and low costs. In recent years， ELISA has been widely used in the quality control of Chinese medicine， especially in the content determination of mycotoxins represented by aflatoxin and the qualitative and quantitative analysis of active components. ELISA plays an increasingly important role with its unique advantages， providing new methods and ideas for the rapid quality examination of large quantities of Chinese medicines. This paper reviews the research progress in ELISA for the quality control of Chinese medicine in recent years and prospects its technical development and application prospects， aiming to provide reference and research ideas for further using this method to ensure the quality， safety， and controllability of Chinese medicine.

Meta-analysis of the efficacy and safety of 0.05% cyclosporine A in the treatment of dry eye / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To systematically evaluate the safety and efficacy of 0.05% cyclosporine A(CsA)in the treatment of dry eye.METHODS: PubMed, Web of Science, Cochrane Library, Embase, Chinese Bio-Medical Literature Database, CNKI, VIP, and Wan Fang Database were retrieved. Randomized controlled trials related to the treatment of dry eye with 0.05%CsA from January 1, 2016 to March 28, 2022 in each database were included. The CsA group was treated with 0.05% CsA eye drops, and the control group was treated with artificial tears and placebo. ReMan 5.3 was used for Meta-analysis of post-treatment Schirmer Ⅰ test(SⅠt), break up time(BUT), corneal fluorescein staining(CFS), ocular surface disease index(OSDI)and adverse effects.RESULTS: A total of 13 literatures were included, which included 1 164 cases(2 057 eyes). Compared with the control group, the SIt in the CsA group was prolonged(MD=2.04, 95%CI: 1.75～2.33, P<0.00001), BUT was longer(MD=1.32, 95%CI: 0.87～1.76, P<0.00001), CFS decreased(MD=-0.79, 95%CI: -1.20～-0.39, P=0.0001)and OSDI decreased(MD=-5.52, 95%CI: -9.14～-1.91, P=0.003). However, the CsA group had more adverse reactions(OR=1.69, 95%CI: 1.06～2.72, P=0.03).CONCLUSION: 0.05% CsA can improve the subjective symptoms and various objective indicators of dry eye patients. However, 0.05% CsA seems to produce more adverse effects, like ocular burning sensation when compared to drugs such as artificial tears.

Adjuvant rice optimization of rice-steamed Rehmanniae Radix and its anti-osteoporosis effect / 中国中药杂志

The present study aimed to investigate the effect of various adjuvant rice on the quality of rice-steamed Rehmanniae Radix(RSRR) with Japonica rice, millet, yellow rice, black rice, and glutinous rice as raw materials, and analyze the anti-osteoporosis effect of RSRR by the optimal adjuvant rice. On the basis of the established UPLC-MS/MS method for the determination of the content of catalpol and rehmannioside D, comprehensive weighted scoring method was employed to evaluate the effect of various auxiliary rice on the quality of RSRR with the content of catalpol and rehmannioside D, character score, and taste score as indicators to optimize adjuvant rice. The osteoporosis model was induced by ovariectomy in rats. SD rats were randomly divided into a sham operation group, a model group, a positive control group, and low-dose and high-dose groups of Rehmanniae Radix, RSRR, steamed Rehmanniae Radix, and Epimedii Folium-RSRR. After treatment for 12 weeks, body weight, bone calcium content, and bone mineral density were mea-sured. The results showed that Japonica rice was selected as the optimal adjuvant due to the highest comprehensive score of RSRR steamed by Japonica rice. Rehmanniae Radix, RSRR, steamed Rehmanniae Radix, as well as Epimedii Folium-RSRR, could improve osteoporosis by increasing bone calcium content and bone mineral density. RSRR was superior to Rehmanniae Radix in improving osteo-porosis. However, there was no significant difference between RSRR and steamed Rehmanniae Radix. This study confirmed that Japo-nica rice was the optimal adjuvant rice of RSRR and verified the anti-osteoporosis effect of RSRR, which laid a foundation for further research on the pharmacological action and mechanism of RSRR.

Clinical features and microsurgical reconstruction of congenital unilateral absence of the vas deferens with obstructive azoospermia: a tertiary care center experience / 亚洲男科学杂志(英文版)

Patients with congenital unilateral absence of the vas deferens (CUAVD) manifest diverse symptoms from normospermia to azoospermia. Treatment for CUAVD patients with obstructive azoospermia (OA) is complicated, and there is a lack of relevant reports. In this study, we describe the clinical features and evaluate the treatments and outcomes of CUAVD patients with OA. From December 2015 to December 2020, 33 patients were diagnosed as CUAVD with OA in Shanghai General Hospital (Shanghai, China). Patient information, ultrasound findings, semen analysis, hormone profiles, and treatment information were collected, and the clinical outcomes were evaluated. Of 33 patients, 29 patients were retrospectively analyzed. Vasoepididymostomy (VE) or cross VE was performed in 12 patients, the patency rate was 41.7% (5/12), and natural pregnancy was achieved in one of the patients. The other 17 patients underwent testicular sperm extraction as the distal vas deferens (contralateral side) was obstructed. These findings showed that VE or cross VE remains an alternative treatment for CUAVD patients with OA, even with a relatively low rate of patency and natural pregnancy.

Effect of Insemination Methods on Pregnancy Outcomes of Day 6 Blastocyst Transfer in Frozen Cycles / 中山大学学报(医学科学版)

ObjectiveTo compare the effects of two different insemination methods， conventional in vitro fertilization （IVF） and intracytoplasmic sperm injection （ICSI）， on pregnancy outcomes in patients with frozen-thawed D6（day 6） blastocyst transfer. MethodsA retrospective cohort study was conducted to analyze the clinical data of patients with thawed D6 blastocyst transfer between January 2018 and April 2020 at the Fertility Center of the Third Hospital of Sun Yat-sen University， divided into conventional IVF group （446 cycles ） and ICSI fertilization group （200 cycles） according to the fertilization method. Patients were divided into those with a history of D5（day 5） blastocyst transfer and those without. The patients’ general characteristics， blastocyst quality， and pregnancy outcomes of the two groups were compared. ResultsBMI， years of infertility， and basal FSH were not statistically significant in the IVF and ICSI groups （P > 0.05）. Regardless of the history of D5 transfer， patients in the ICSI group were younger than those in the IVF group （P < 0.001）， the proportion of primary infertility was significantly higher in the ICSI group （P < 0.001）， and the number of oocytes obtained and the number of normally fertilized oocytes in the ICSI group were higher than those in the conventional IVF fertilization group （P < 0.001）. The proportion of stage V and Ⅵ blastocysts was significantly higher in the conventional IVF group than in the ICSI group （21.6 % vs. 3.14 %， P < 0.001）. High-quality blastocysts with an ICM score of A were significantly higher in the ICSI group than in the IVF group （23.8 % vs. 14.3 %， P = 0.01）. The HCG-positive and clinical pregnancy rates were significantly higher in the ICSI group than in the IVF group （65.5 % vs. 48.4 %， P < 0.001； 56 % vs. 41.3 %， P = 0.001）， and embryo implantation and live birth rates were also higher in the ICSI group than in the conventional IVF group （43.8 % vs. 30.9 %， P < 0.001； 43.0 % vs. 31.8 %， P = 0.006）. After correcting for age and number of oocytes obtained between the two groups， the clinical pregnancy rate was still significantly higher in the ICSI group than in the conventional IVF group （OR： 1.590， 95 % CI： 1.030， 2.455， P = 0.036）. Infant birth weight was lower in the ICSI group than in the IVF group （P = 0.016）， and the differences in preterm birth rate， sex ratio， and mode of delivery were not statistically significant between the two groups. ConclusionsClinical pregnancy and live birth rates after thawing and transfer of D6 blastocysts fertilized by ICSI are higher than those of D6 blastocysts fertilized by conventional IVF， which may be related to the different factors contributing to the slow development of blastocysts in patients who received different fertilization methods. The relatively good pregnancy outcome after the transfer of thawed D6 blastocysts fertilized by ICSI may compensate to some extent for the difference in pregnancy outcome due to the relatively slow blastocyst development and a relatively higher proportion of D6 blastocysts after ICSI fertilization in male infertility patients.

Application of transrectal contrast-enhanced ultrasound in the diagnosis of prostate cancer in different tPSA intervals / 现代泌尿外科杂志

【Objective】 To investigate the clinical value of transrectal contrast-enhanced ultrasound (CEUS) in the diagnosis of prostate cancer in different total prostate specific antigen (tPSA) intervals. 【Methods】 According to serum tPSA levels, 96 patients meeting the inclusion criteria were divided into 3 groups:4-10 ng/mL, >10-20 ng/mL and >20 ng/mL groups. All patients underwent transrectal CEUS. With pathological results as reference, the diagnostic value of transrectal CEUS in different tPSA intervals was evaluated. 【Results】 Of the 96 cases, 62 were confirmed by pathology as prostate cancer and 34 as benign prostatic hyperplasia (BPH). The main perfusion characteristics of prostate cancer under CEUS were rapid enhancement (64.52%), rapid clearance (70.97%), uneven enhancement (83.87%) and high enhancement (61.29%);the main characteristics of BPH were non-rapid enhancement (70.59%), non-rapid clearance (73.53%), uniform enhancement (76.47%) and non-high enhancement (52.94%). There were significant differences in terms of enhancement speed, clearance speed and enhancement uniformity between prostate cancer and BPH (P<0.05), but no significant difference in the enhancement intensity. The sensitivity of transrectal CEUS in the diagnosis of prostate cancer in low, medium and high tPSA groups were 58.33%, 70.37% and 95.65%, the specificity were 83.33%, 76.92% and 66.67%, and the accuracy were 73.33%, 72.50% and 92.31%, respectively. Transrectal CEUS showed consistency at different serum tPSA levels for the diagnosis of prostate cancer, with statistical significance. Moreover, in the 4.0 ng/mL ≤tPSA<10.0 ng/mL group, the diagnostic specificity was the highest. 【Conclusion】 Transrectal CEUS is helpful in the differential diagnosis of benign and malignant prostatic lesions, especially for patients with different serum tPSA levels.

Compatibility stability of cinepazide maleate injection and dopamine hydrochloride injection / 中国基层医药

Objective:To investigate the compatibility stability of cinepazide maleate injection and dopamine hydrochloride injection and explore the basis for the combined application of cinnamazide maleate injection and dopamine hydrochloride injection.Methods:A method for determining cinnamazide maleate injection and dopamine hydrochloride injection was established using an ultraviolet-visible spectrophotometer and verified from March 1, 2021 to May 20, 2021. The color and pH value of the solution prepared using the two drugs were determined within 5 hours at room temperature. The content change of the prepared solution was determined using an ultraviolet-visible spectrophotometer.Results:The linear range of the mass concentration of cinnamazide maleate was 4.03 - 32.24 mg/L and the linear range of dopamine hydrochloride was 20 -120 mg/L. At 25 ℃, the color of the prepared solution did not change within 5 hours and the pH value was in the range of 4.43 ± 0.06, indicating that the pH of the prepared solution did not change markedly. The concentrations of cinnamazide maleate and dopamine hydrochloride were (98.23 ± 1.09)% and (99.96 ± 0.41)% respectively, indicating good stability.Conclusion:The prepared solution using cinepazide maleate injection and dopamine hydrochloride injection can be used within 5 hours at 25 ℃.

Impact of completion rates of 3-hour and 6-hour bundle on the prognosis of septic shock patients / 中华危重病急救医学

Objective:To explore the impact of completion rates of 3-hour and 6-hour sepsis bundle therapy on prognosis of patients with septic shock in Prefecture-level grade A hospitals, and analyze the risk factors for prognosis.Methods:A retrospective analysis was conducted to patients with septic shock in the intensive care unit (ICU) of Liaocheng People's Hospital, Shandong Province from January 1, 2020 to December 31, 2021. The data of gender, age, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), sequential organ failure assessment (SOFA), sites of infection, pathogenic microorganisms, completion rates of 3-hour and 6-hour sepsis bundle therapy, 28-day prognosis were collected. Logistic regression analysis was used to identify risk factors for patients' mortality at 28-day.Results:① Among 159 patients with septic shock, 93 survived and 66 died with 28-day. There were no significant differences in gender and age between the survival group and death group. Compared with the survival group, APACHE Ⅱ score and SOFA score were significantly higher in the death group [APACHE Ⅱ score: 26.85±5.04 vs. 20.67±4.29, SOFA score: 12.86±3.02 vs. 9.37±2.51, both P < 0.05]. ② Sites of infection in the 159 patients: 47 cases were abdominal infection (29.6%), 36 case were bloodstream infection (22.6%), 31 cases were pulmonary infection (19.5%), 16 cases were soft tissue infection (10.1%), 13 cases were urinary tract infection (8.2%), 12 cases were biliary tract infection (7.5%), and 4 cases were other sites infection (2.5%). Pathogens were found in 128 cases and the positive rate was 80.5%, including 90 cases of Gram-negative (G -) bacilli (56.6%), 27 cases of Gram-positive (G +) cocci (17.0%) and 11 cases of fungi (6.9%). The top three pathogenic bacteria were Escherichia coli (49 cases, 30.8%), Klebsiella pneumoniae (21 cases, 13.2%) and Staphylococcus aureus (15 cases, 9.4%). The differences were not statistically significant. ③ Among the 159 patients, 101 cases completed 3-hour sepsis bundle therapy (63.5%), including 67 cases (72.0%) in survival group and 34 cases (51.5%) in death group; 106 cases completed 6-hour sepsis bundle therapy (66.7%), including 70 cases (75.3%) in survival group and 36 cases (54.5%) in death group. The differences between the two groups were statistically significant (all P < 0.05). ④ The factors (APACHE Ⅱ score, SOFA score and completion rate of 3-hour and 6-hour sepsis bundle therapy) affecting the prognosis in the univariate analysis were included in the binary Logistic regression analysis, and the results showed that the APACHE Ⅱ score, SOFA score, completion rate of 3-hour sepsis bundle therapy were independent risk factors affecting mortality within 28-day [odds ratio ( OR) was 1.216, 1.303, 0.402, all P < 0.05]. Conclusions:The higher APACHE Ⅱ score and SOFA score in septic shock, the worse the prognosis. Improving the completion rates of 3-hour and 6-hour bundle therapy especially the completion rate of 3-hour bundle therapy can reduce the mortality of patients and improve the prognosis.

Study on protective effects of Shiyifang medicinal wine on knee osteoarthritis in rabbits based on TLR 4/MyD88/ NF-кB signaling pathway / 中国药房

OBJECTIVE To study the protective effect and mechanism of Shiyifang medicinal wine （SYF） on knee osteoarthritis（KOA）of rabbit induced by papain . METHODS Thirty-five rabbits were randomly divided into blank group ，model group，positive group （Diclofenac diethylamine emulsion 200 mg/kg），SYF high -dose group （386 mg/kg）and SYF low -dose group（97 mg/kg），with 7 rabbits in each group （all had 4 males and 3 females）. Except for the blank group ，the other groups ’ rabbits were injected 0.5 mL papain mixture （containing 2% papain and 0.03 mol/L L -cysteine）into the right knee cavity on day 1， 4 and 7，to replicate KOA model . Blank group was given constant volume of normal saline . From the 15th day ，drugs were applied to right hind knee joints of rabbits in each group ，twice a day for 20 days. At the same time ，the diameter of right knee joints of rabbits was measured by vernier calipers at day 0，8，14 and 35 to calculate swelling degree . After the experiment ，the levels of IL-1β，TNF-α and PGE 2 in synovial tissue were determined by enzyme -linked immunosorbent assay . Hematoxylin-eosin（HE） staining was used to prepare the sections of synovial tissue ，and the pathological changes were observed . The relative mRNA expressions of TLR 4，MyD88 and NF - кB p 65 in the TLR 4/MyD88/NF- кB signaling pathway were detected by real -time quantitative polymerase chain reaction . The relative protein expressions of TLR 4，MyD88，NF-кB p 65 and p -NF-кB p 65 were detect by Western blot . RESULTS Compared with blank group，the degree of knee swelling could be increased in model group ，the pathological damage of synovial tissue was more serious ，and the levels of IL -1β，TNF-α and PGE 2 were increased significantly in synovial tissue （P＜0.05）. The relative expression levels of TLR 4，MyD88，NF-кB p 65 mRNAs and TLR 4，MyD88，p-NF-кB p 65 proteins were significantly increased（P＜0.05）. Compared with model group ，swelling degree of right hind knee and the pathological injury degree of synovial tissue were significantly improved in each treatment group ，while the levels of IL -1β，TNF-α and PGE 2 in synovial tissue were significantly decreased （P＜0.05）. The relative mRNA expressions of TLR 4，MyD88 and NF -кB p 65 and relative protein expressions of TLR 4，MyD88（except for SYF low -dose group ）and p -NF-кB p 65 were all significantly decreased （P＜0.05）. CONCLUSIONS SYF shows protective effect on KOA induced by papain ，the mechanism of which is associated with decreasing the levels of IL -1β，TNF-α and PGE 2 and down -regulating TLR 4/MyD88/NF-кB signaling pathway .

China guideline for the screening and early detection of prostate cancer (2022, Beijing) / 中华肿瘤杂志

Prostate cancer (PC) is one of the malignant tumors of the genitourinary system that occurs more often in elderly men. Screening, early diagnosis, and treatment of the PC high risk population are essential to improve the cure rate of PC. The development of the guideline for PC screening and early detection in line with epidemic characteristics of PC in China will greatly promote the homogeneity and quality of PC screening. This guideline was commissioned by the Bureau of Disease Control and Prevention of the National Health Commission. The National Cancer Center of China initiated and convened a working group comprising multidisciplinary experts. This guideline strictly followed the World Health Organization Handbook for Guideline Development and combined the most up-to-date evidence of PC screening, China's national conditions, and practical experience in cancer screening. A total of fifteen detailed evidence-based recommendations were provided with respect to the screening population, technology, procedure management, and quality control in the process of PC screening. This guideline aimed to standardize the practice of PC screening and improve the effectiveness and efficiency of PC prevention and control in China.

The normal values of water-perfused high resolution esophageal manometry: a multicenter study / 中华消化杂志

Objective:To establish the normal values of water-perfused high resolution esophageal manometry (HREM)(GAP-36A) at resting period, water swallowing, semisolid swallowing and solid swallowing in Chinese population.Methods:From September 1, 2019 to June 30, 2020, 91 healthy volunteers receiving water-perfused HREM (GAP-36A) at resting period, water swallowing, semisolid swallowing and solid swallowing were selected from 9 hospitals (Union Hospital, Tongji Medical College, Huazhong University of Science and Technology; the First Affiliated Hospital of Dalian Medical University; the Second Hospital of Hebei Medical University; the Second Affiliated Hospital, Naval Medical University; the First Affiliated Hospital, Sun Yat-sen University; the First Affiliated Hospital, University of Science and Technology of China; Aviation General Hospital of China Medical University; the Affiliated Hospital of Medical School of Nanjing University and the First People′s Hospital of Yichang). Parameters included the position of the upper and lower edges of the upper esophageal sphincter (UES) and lower esophageal sphincter (LES), the length of the LES and UES, the position of the pressure inversion point (PIP), the resting pressure of UES and LES and swallow-related parameters such as the distal contraction integral (DCI), 4 s integrated relaxation pressure (IRP), distal latency (DL) and UES residual pressure. One-way analysis of variance, post-hoc test and sum rank test were used for statistical analysis.Results:A total of 87 healthy volunteers were enrolled, including 40 males and 47 females, aged (38.5±14.2) years old (ranged from 19 to 65 years old). The position of the upper and lower edges of the LES was (42.7±2.8) and (45.6±2.8) cm, respectively, the length of the LES was (2.9±0.4) cm, and the position of PIP was (43.3±2.8) cm. The position of the upper and lower edges of the UES was (18.1±3.0) and (22.6±2.0) cm, respectively, and the length of the UES was (4.8±1.0) cm. The resting pressure of LES and UES was (17.4±10.7) and (84.1±61.1) mmHg (1 mmHg=0.133 kPa), respectively. The DCI value at solid swallowing was higher than those at water swallowing and semisolid swallowing ((2 512.4±1 448.0) mmHg·s·cm vs. (2 183.2±1 441.2) and (2 150.8±1 244.8) mmHg·s·cm), and the differences were statistically significant ( t=-4.30 and -3.74, both P<0.001). The values of 4 s IRP at semisolid swallowing and solid swallowing were lower than that at water swallowing ((4.6±4.1) and (4.9±3.9) mmHg vs. (5.4±3.9) mmHg), and the differences were statistically significant ( t=3.38 and 2.09, P=0.001 and 0.037). The DL at water swallowing was shorter than those at semisolid swallowing and solid swallowing ((8.5±1.8) s vs. (9.8±2.2) and (10.6±2.8) s), and the DL at semisolid swallowing was shorter than that at solid swallowing, and the differences were statistically significant ( t=-10.21, -13.91 and -4.68, all P<0.001). The UES residual pressure at water swallowing was higher than those at semisolid swallowing and solid swallowing (9.5 mmHg, 6.5 to 12.3 mmHg vs. 8.0 mmHg, 4.5 to 11.7 mmHg and 5.5 mmHg, 2.0 to 9.3 mmHg), and the UES residual pressure at semisolid swallowing was higher than that at solid swallowing, and the differences were statistically significant ( t=3.48, 10.30 and 6.35, all P<0.001). Conclusions:The normal values of water-perfused HREM (GAP-36A) in Chinese population at resting period, water swallowing, semisolid swallowing and solid swallowing can provide a reference basis for clinical diagnosis and treatment for patients receiving water-perfused HREM examination.

Analysis of disease composition and outcome of patients in intensive care department of 3A hospitals: analysis of 3 249 cases in the department of Liaocheng People's Hospital from 2019 to 2021 / 中华危重病急救医学

Objective:To provide the basis and direction for the establishment of the database of severe patients by analyizing of the disease composition and outcome of patients in the department of critical care medicine of the 3A hospital.Methods:The clinical data of 3 249 patients admitted to the department of critical care medicine of Liaocheng People's Hospital from January 1, 2019 to December 31, 2021 were retrospectively analyzed, including gender, age, admission time, admission route, diagnosis, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score 24 hours after admission, outcome and other information.Results:The mean age of 3 249 patients was (61.99±18.29) years old, and the proportion of young and old patients aged 60-74 years accounted the largest (34.01%). There were more males (1 800 cases) than females (1 449 cases). The most patients were admitted in January (119 cases) and the least in March (75 cases). The top eight diseases in the department of critical care medicine were respiratory system diseases (21.88%), multiple injuries (12.65%), cardiovascular system diseases (11.48%), gastrointestinal surgery diseases (9.42%), pathological obstetrics (7.76%), digestive system diseases (7.63%), urinary system diseases (5.69%) and nervous system diseases (5.23%). Among 3 249 critically ill patients, 54.36% (1 766 cases) were transferred to the general ward for treatment after improvement, with APACHE Ⅱ score was 17.99±5.51. 15.91% (517 cases) returned to local hospital for further treatment after improvement, APACHE Ⅱ score was 22.48±6.57. 1.51% (49 cases) were transferred to superior hospitals, APACHE Ⅱ score was 21.71±5.18. 24.22% (787 cases) were discharged automatically, APACHE Ⅱ score was 25.64±5.45. 4.00% (130 cases) died in intensive care unit (ICU), APACHE Ⅱ score was 29.08±8.10. The APACHE Ⅱ score of patients who died in ICU was higher than that of patients who were transferred to another department, another hospital or discharged automatically after their condition improved, and the differences were statistically significant (all P < 0.001). Among 3 249 patients, a total of 1 265 patients were admitted to ICU for sepsis caused by aggravated infection, and 44.43% (562 cases) of the 1 265 patients improved to the general ward after treatment, with APACHE Ⅱ score was 18.99±5.46. 19.21% (243 cases) returned to local hospital after treatment with APACHE Ⅱ score was 22.79±6.74. 1.50% (19 cases) were transferred to superior hospitals for further treatment with APACHE Ⅱ score was 21.21±4.81. 31.54% (399 cases) were discharged automatically with APACHE Ⅱ score was 25.55±4.84; 3.32% (42 cases) died in ICU with APACHE Ⅱ score was 27.69±7.92. The APACHE Ⅱ score of patients who died in ICU was higher than that of patients who were transferred to another department, another hospital or discharged automatically after their condition improved, and the difference was statistically significant (all P < 0.001). Conclusions:Among the patient admitted to ICU 2019-2021 in Liaocheng People's Hospital, respiratory system diseases accounted for the first, multiple injuries accounted for the second place, followed by cardiovascular system diseases, gastrointestinal surgery diseases, pathological obstetrics, etc. Males and elderly patients aged 60-74 years have a higher proportion of severe cases. APACHE Ⅱ scores were associated with patients' prognosis.

China guideline for the screening, early detection and early treatment of gastric cancer (2022, Beijing) / 中华肿瘤杂志

Gastric cancer (GC) is a major digestive tract malignancy in China, which seriously threatens the health of Chinese population. A large number of researches have demons-trated that screening, early detection and early treatment are effective in reducing the incidence and mortality of GC. The development of the guideline for GC screening, early detection and early treatment in line with epidemic characteristics of GC in China will greatly promote the homogeneity and standardization, and improve the effect of GC screening. This guideline was commissioned by the Bureau of Disease Control and Prevention of the National Health Commission. The National Cancer Center of China initiated and convened a working group comprising multidisciplinary experts. Following the World Health Organization Handbook for Guideline Development, this guideline combined the most up-to-date evidence of GC screening, China's national conditions, and practical experience in cancer screening. This guideline provided evidence-based recommendations with respect to the screening population, technology and procedure management, aiming to improve the effect of GC screening and provide scientific evidence for the GC prevention and control in China.

China guideline for the screening, early detection and early treatment of esophageal cancer (2022, Beijing) / 中华肿瘤杂志

Esophageal cancer (EC) is a major digestive tract malignancy in China, which seriously threatens the health of Chinese population. A large number of researches have demonstrated that screening and early detection are effective in reducing the incidence and mortality of EC. The development of the guideline for EC screening and early detection in line with epidemic characteristics of EC in China will greatly promote the homogeneity and standardization, and improve the effect of EC screening. This guideline was commissioned by the Bureau of Disease Control and Prevention of the National Health Commission. The National Cancer Center of China initiated and convened a working group comprising multidisciplinary experts. Following the World Health Organization Handbook for Guideline Development, this guideline combined the most up-to-date evidence of EC screening, China's national conditions, and practical experience in cancer screening. This guideline provided evidence-based recommendations with respect to the screening population, technology and procedure management, aiming to improve the effect of EC screening and provide scientific evidence for the EC prevention and control in China.

Prevention and treatment strategy for deviation of costal cartilage dorsal onlay graft in rhinoplasty / 中华医学美学美容杂志

Objective:To investigate the prevention and treatment for deviation of costal cartilage dorsal onlay grafts in rhinoplasty.Methods:From January 2010 to October 2020, a total of 588 patients (83 male cases, 505 female cases, age range from 25 years to 55 years, 32±4 years in average) accepted costal cartilage rhinoplasty in Shenzhen Mylike Medical Plastic Aesthetic Hospital. During the operation, various methods were used in the process of catilage selection, water bath, sculpture, treatment of nasal dorsal, graft fixation and fascial modification to prevent and treat the deformation and displacement of the costal cartilage dorsal onlay grafts.Results:The immediate postoperative photograph of 588 cases showed that costal cartilage dorsal onlay graft was put on the middle of dorsum. After a follow-up period of 396 cases from 6 to 60 months, the average follow-up period was 12.1 months, there were 44 cases happened with the deviation of dorsal onlay grafts, and deviation was managed after the second rhinoplasty surgery. There was no prolonged function sequela such as ventilation dysfunction, abnormal sensation, or hyposmia occured. 362 cases were satisfied with the aesthetic effect.Conclusions:It is particularly important to grasp the principles of managing costal cartilage in rhinoplasty and to learn how to prevent and treat postoperative complications of costal cartilage dorsal onlay graft.

Correlation between glycemic variability and glycosylated hemoglobin level during follow-up in elderly male patients with type 2 diabetes in Beijing / 中华内科杂志

Objective:To investigate the relationship between glycemic variability and glycosylated hemoglobin (HbA1c) level during follow-up in elderly male patients with type 2 diabetes.Methods:Retrospective cohort study. A total of 200 elderly male patients who received continuous glucose monitoring from January 2007 to January 2011 were recruited in the Second Medical Center of PLA General Hospital. The subjects were divided into two groups according to baseline mean amplitude of glycaemic excursion (MAGE) level, including MAGE <3.9 mmol/L group ( n=114) and MAGE ≥3.9 mmol/L group ( n=86). The correlation between baseline MAGE and mean HbA1c during follow-up were evaluated by univariate Pearson correlation analysis and multivariate linear regression analysis. Results:Baseline characteristics including age, body mass index, waist circumference, smoking, drinking, fasting blood glucose, blood lipid and blood pressure were comparable between MAGE <3.9 mmol/L group and MAGE ≥3.9 mmol/L group. The average follow-up period was 12.5 years. The mean HbA1c during follow-up in MAGE ≥3.9 mmol/L group was significantly higher than that in MAGE <3.9 mmol/L group (7.23%±0.72% vs. 6.91%±0.77%, t=-2.94, P=0.004). The proportion of mean HbA1c <7.0% during follow-up in MAGE ≥3.9 mmol/L group was 44.2% (38/86), which was significantly lower than that in MAGE <3.9 mmol/L group [60.5% (69/114), χ 2=5.26, P=0.022]. In univariate analysis, MAGE at baseline was correlated with the mean HbA1c during follow-up ( r=0.306, P<0.001). Multivariate linear regression analysis suggested that the baseline MAGE remained an independent influential factor of mean HbA1c ( β=0.09, 95% CI: 0.03 to 0.15, P=0.006, R2=0.31) after several confounding factors were adjusted. Conclusions:With the increased glycemic variability at baseline, mean HbA1c level during follow-up is accordingly elevated. The glycemic variability at baseline is independently related to mean HbA1c level during follow-up in elderly male patients with type 2 diabetes.

The creation and application of entity teaching model of medical physics—taking hemodynamics as example / 中华医学教育探索杂志

Hemodynamics is a branch of fluid mechanics, which mainly studies the physiological process of circulatory system from the perspective of mechanics, and has a wide range of applications in medicine. The entity teaching model is made to help medical students master the knowledge of hemodynamics more easily and intuitively by showing them the phenomenon of laminar flow, turbulence and axial concentration of red blood cells. And then we check their learning effect by questionnaires. Students are interested in the entity teaching model that the teacher has used in the class. Thus, the entity teaching model can play an important role in the teaching process.

3D digital image microscope system-assisted vasovasostomy and vasoepididymostomy in rats / 亚洲男科学杂志(英文版)

Optimal vision and ergonomics are essential factors contributing to the achievement of good results during microsurgery. The three-dimensional (3D) digital image microscope system with a better 3D depth of field can release strain on the surgeon's neck and back, which can improve outcomes in microsurgery. We report a randomized prospective study of vasoepididymostomy and vasovasostomy using a 3D digital image microscope system (3D-DIM) in rats. A total of 16 adult male rats were randomly divided into two groups of 8 each: the standard operating microscope (SOM) group and the 3D-DIM group. The outcomes measured included the operative time, real-time postoperative mechanical patency, and anastomosis leakage. Furthermore, a user-friendly microscope score was designed to evaluate the ergonomic design and equipment characteristics of the microscope. There were no differences in operative time between the two groups. The real-time postoperative mechanical patency rates were 100.0% for both groups. The percentage of vasoepididymostomy anastomosis leakage was 16.7% in the SOM group and 25.0% in the 3D-DIM group; however, no vasovasostomy anastomosis leakage was found in either group. In terms of the ergonomic design, the 3D-DIM group obtained better scores based on the surgeon's feelings; in terms of the equipment characteristics, the 3D-DIM group had lower scores for clarity and higher scores for flexibility and adaptivity. Based on our randomized prospective study in a rat model, we believe that the 3D-DIM can improve surgeon comfort without compromising outcomes in male infertility reconstructive microsurgery, so the 3D-DIM might be widely used in the future.