Background Pneumoconiosis is a prevalent and severely harmful occupational disease in China. Objective To estimate disease burden and trends of different types of pneumoconiosis among Chinese males from 1992 to 2021, and to provide insights for pneumoconiosis prevention and control as well as the development of public health policies in China. Methods Based on the latest data from the Global Burden of Disease (GBD) study (2021), this study evaluated the disease burden of pneumoconiosis among Chinese males using indicators such as mortality rate and disability-adjusted life years (DALYs). Joinpoint regression model and age-period-cohort model were applied to analyze trends in the mortality rates of pneumoconiosis among Chinese males. Results From 1992 to 2021, the age-standardized DALYs rate, age-standardized years of life lost (YLLs) rate, age-standardized years lived with disability (YLDs) rate, and age-standardized mortality rate of pneumoconiosis among Chinese men all showed a downward trend, with average annual percentage changes (AAPC) of −2.63%, −2.81%, −0.87%, and −2.56%, respectively (P<0.05). Among the four types of pneumoconiosis, the disease burden of silicosis was the highest. The age-standardized mortality rates for silicosis, asbestosis, coal worker’s pneumoconiosis, and other types of pneumoconiosis had AAPC of −2.18%, −1.24%, −3.81%, and −3.21% (P<0.05), respectively. The age effects showed mortality rates for all types increased with age, particularly in silicosis and coal worker’s pneumoconiosis. The period effects showed a general decline in mortality risk, though silicosis remained significantly higher than other types. The cohort effects indicated that later birth cohorts had progressively lower mortality risks. Conclusion From 1992 to 2021, the burden of pneumoconiosis among Chinese males has shownsome alleviation; however, pneumoconiosis remains China’s most severe occupational disease. Given that males are the primary affected group in both incidence and mortality, continued attention and targeted preventive measures are essential. Effective control strategies should be tailored to address the specific characteristics of each type of pneumoconiosis.

Objective To investigate the effects of comprehensive nutrition management on glycolipid metabolism and pregnancy outcomes in patients with gestational diabetes mellitus(GDM).Methods A total of 121 pregnant women with GDM at 24-28 weeks gestation who were registered in the obstetrics department of 6 sub-central hospi-tals in China from May 2021 to July 2021 were included in this study and were randomly divided into intervention group(n=74)and control group(n=47).The intervention group received intensive comprehensive nutrition man-agement,including at least 6 outpatient interventions,individualized nutrition management and a half-day standard-ized outpatient education on gestational diabetes mellitus,continuous dynamic blood glucose monitoring and micro-blood glucose monitoring,and routine check of glycated albumin and urine every 4 weeks.Body weight,body com-position and diet and exercise implementation procedures and fetal development as well as complications were recor-ded.The control group received conventional nutritional guidance.The two groups were compared for difference in blood glucose related indicators at 37 weeks of gestation,weight gain before delivery,some lipid metabolism indica-tors,pregnancy outcomes,and oral glucose tolerance test(OGTT)at 42 days postpartum.Results Compared with the control group,the level of prenatal fasting blood glucose(P=0.006),intravenous plasma glucose(P=0.009)and blood ketone(P = 0.044)in the intervention group was significantly reduced.There was no significant difference in weight gain and weight attainment rate between the two groups.The 2-hour postpartum OGTTs of preg-nant women in the intervention group(P=0.006)were significantly lower than those in the control group,and the incidence of preeclampsia and postpartum blood loss were lower than those in the control group but no statistical difference was found.For newborns,the incidence of macrosomia(P=0.042)and planation(P=0.048)in the in-tervention group was slightly lower than that in the control group,and the results were statistically different.Other adverse pregnancy outcomes were not statistically different between the two groups.Conclusions Intensive compre-hensive nutrition management has a positive impact on the control of the blood glucose in pregnant women and im-proves the maternal and neonatal outcomes of women with GDM.

Sha （痧） is an acute infectious disease characterised by the appearance of rashes on the skin， caused by exposure to epidemic toxin and pestilent qi. Sha Zhang Yu Heng （《痧胀玉衡》） discussed the treatment principles and methods， and listed collateral bloodletting as one of the main treatments. Through organizing the articles and proved cases， we found that the author believes Sha （痧） is caused by epidemic pathogen， belonging to heat toxin with rapid changes， so timely treatment for qi and blood simultaneously could achieve the effect of transforming qi into defensive qi. Sha Zhang Yu Heng focuses on patient's position during treatmet， the material of the needle， the site of treatment， the quantum of stimulation and the operation of the contraindications and other essentials. According to the depth of the disease location， use traditional Chinese herbal medicine， scraping together to identify the root of the disease. In addition， diet suggestions for the prevention of the recrudescence of disease are also described in detail.

Objective To determine the blood physiological and biochemical indexes in the inbred SHANXI MU strain of spontaneous type 2 diabetes(T2DM)Chinese hamsters.Methods Chinese hamsters with spontaneously developed T2DM and normal hamsters(n=10 hamsters per group),aged 12 months,were selected for the study.Fasting blood samples were collected and 15 physiological parameters and 16 biochemical indicators were analyzed using a Sysmex XT automated hematology analyzer and Hitachi fully automatic biochemical analyzer.Results The white cell count,red cell count,platelet count,hemoglobin level,alanine transaminase,aspartate transaminase,glutamate,total cholesterol,triglycerides,and uric acid all differed significantly between the diabetic and control groups(P＜0.05).Conclusions The change of blood physiological and biochemical indexes in the Chinese hamster spontaneous T2DM model were in line with the trend in human T2DM incidence,thus providing basic data for the application of this model.

γ-aminobutyric acid can be produced by a one-step enzymatic reaction catalyzed by glutamic acid decarboxylase. The reaction system is simple and environmentally friendly. However, the majority of GAD enzymes catalyze the reaction under acidic pH at a relatively narrow range. Thus, inorganic salts are usually needed to maintain the optimal catalytic environment, which adds additional components to the reaction system. In addition, the pH of solution will gradually rise along with the production of γ-aminobutyric acid, which is not conducive for GAD to function continuously. In this study, we cloned the glutamate decarboxylase LpGAD from a Lactobacillus plantarum capable of efficiently producing γ-aminobutyric acid, and rationally engineered the catalytic pH range of LpGAD based on surface charge. A triple point mutant LpGAD^{S24R/D88R/Y309K} was obtained from different combinations of 9 point mutations. The enzyme activity at pH 6.0 was 1.68 times of that of the wild type, suggesting the catalytic pH range of the mutant was widened, and the possible mechanism underpinning this increase was discussed through kinetic simulation. Furthermore, we overexpressed the Lpgad and Lpgad^{S24R/D88R/Y309K} genes in Corynebacterium glutamicum E01 and optimized the transformation conditions. An optimized whole cell transformation process was conducted under 40 ℃, cell mass (OD₆₀₀) 20, 100 g/L l-glutamic acid substrate and 100 μmol/L pyridoxal 5-phosphate. The γ-aminobutyric acid titer of the recombinant strain reached 402.8 g/L in a fed-batch reaction carried out in a 5 L fermenter without adjusting pH, which was 1.63 times higher than that of the control. This study expanded the catalytic pH range of and increased the enzyme activity of LpGAD. The improved production efficiency of γ-aminobutyric acid may facilitate its large-scale production.
Glutamate Decarboxylase/genetics* ; Lactobacillus plantarum/genetics* ; Catalysis ; gamma-Aminobutyric Acid ; Hydrogen-Ion Concentration ; Glutamic Acid

With the rapid development of computer technology, numerical simulation has gradually become an important method to study drying process and improve drying equipment. Using computer to simulate the drying process of traditional Chinese medicine(TCM) is characterized by intuitiveness, scientificity, and low cost, which serves as an auxiliary means for technical innovation in TCM drying. This paper summarizes the theories of different drying methods and the research status of numerical simulation in drying, introduces the modeling methods and software of numerical simulation, and expounds the significance of numerical simulation modeling in shortening the research and development cycle, improving drying equipment, and optimizing drying parameters. However, the current numerical simulation method for drying process has problems, such as low accuracy, lack of quantitative indicators for the control of simulation results on the process, and insufficient in-depth research on the mechanism of drug quality changes. Furthermore, this paper put forward the application prospect of numerical simulation in TCM drying, providing reference for the further study of numerical simulation in this field.
Medicine, Chinese Traditional ; Drugs, Chinese Herbal ; Desiccation

In recent years, continuous manufacturing technology has attracted considerable attention in the pharmaceutical industry. This technology is highly sought after for its significant advantages in cost reduction, increased efficiency, and improved productivity, making it a growing trend in the future of the pharmaceutical industry. Compared to traditional batch production methods, continuous manufacturing technology features real-time control and environmentally friendly intelligence, enabling pharmaceutical companies to produce drugs more efficiently. However, the adoption of continuous manufacturing technology has been slow in the field of traditional Chinese medicine(TCM) pharmaceuticals. On the one hand, there is insufficient research on continuous manufacturing equipment and technology that align with the characteristics of TCM preparations. On the other hand, the scarcity of talent with diverse expertise hampers its development. Therefore, in order to promote the modernization and upgrading of the TCM pharmaceutical industry, this article combined the current development status of the TCM industry to outline the development status and regulatory requirements of continuous manufacturing technology. At the same time, it analyzed the problems with existing TCM manufacturing models and explored the prospects and challenges of applying continuous manufacturing technology in the field of TCM pharmaceuticals. The analysis focused on continuous manufacturing control strategies, technical tools, and pharmaceutical equipment, aiming to provide targeted recommendations to drive the development of the TCM pharmaceutical industry.
Medicine, Chinese Traditional ; Quality Control ; Drug Industry ; Technology, Pharmaceutical/methods* ; Drugs, Chinese Herbal ; Pharmaceutical Preparations

【Objective】 To evaluate and analyze the impact of COVID-19 epidemic on inventory of red blood cells (RBCs)in local and municipal blood stations in China, and to provide reference for the management of public health emergencies. 【Methods】 Relevant data from 2018 to 2021 were collected, and the differences in the volume of qualified RBCs, the usage efficiency of inventory RBCs, the average daily distribution of RBCs,the blood distribution rate of RBCs prepared by 400 mL whole blood, the difference in the average storage days of RBCs at the time of distribution, the average daily inventory of RBCs and the time of the average daily inventory of RBCs to maintain the distribution in 24 local and municipal blood stations in China during the COVID-19 epidemic and non-epidemic periods were retrospectively analyzed. 【Results】 Compared with non-epidemic periods, the volume of qualified RBCs [(117 525.979 ±52 203.175)U] and the average daily distribution of RBCs [( 156. 468 ± 70. 186) U ] increased significantly, but the usage efficiency of inventory RBCs decreased(97.24%±0.51%) significantly (P<0.05).There was no significant difference in the blood distribution rate of RBCs prepared by 400 mL whole blood(73.88%±20.30%), the average storage days of RBCs distribution(13.040 ±3.486), the average daily stock quantity of RBCs[(2 280.542 ±1 446.538) U ] and the time of the average daily inventory of RBCs to maintain the distribution[(15.062 ±7.453) d] (P>0.5). 【Conclusion】 During the COVID-19 epidemic, the inventory management of RBCs operated well, the overall inventory remained relatively stable, the stock composition and storage period showed no significant change.

Due to the characteristics of confusing varieties of Chinese medicinal materials, different sources, complex chemical composition, non-standard preparation process, and non-standard pharmaceutical equipment, the quality of Chinese medicinal preparations is difficult to be controlled and evaluated effectively under the current quality control mode and method of Chinese medicinal preparation. The present study proposed an engineering quality view of Chinese medicine pharmacy and a strategy to control the quality of Chinese medicinal preparations based on the current situation. The "overall, dialectical, and dynamic" multi-factor engineering quality view, covering original medicinal materials, preparation technologies, pharmaceutical equipment, and Chinese medicinal preparations, ensures the traceable process, measurable procedures, and feedback quality. The quality control mode of Chinese medicinal preparation with controllable sources, standardized preparation technologies, green pharmaceutical equipment, and intelligent manufacturing is built up.
Commerce ; Drugs, Chinese Herbal ; Medicine, Chinese Traditional ; Pharmacy ; Quality Control

Objective:To observe the changes of relevant clinical indicators and ultrasound pre-sentations in rheumatoid arthritis (RA) patients after being treated with tocilizumab for 3 months and explore the efficacy and safety of tocilizumab in the treatment of RA.Methods:Clinical data, laboratory and ultrasound examinations and medications of RA patients who met inclusion criteria in our hospital from Jan-uary 2017 to September 2020 were included and their data were analyzed retrospectively, and the efficacy and safety of tocilizumab and the ultrasound assessment of disease remission were analyzed. Paired sample t test, Wilcoxon signed-rank test, χ2 test or Fisher's exact probability test were used for comparative analysis. Results:① Compared with baseline data, morning stiffness duration of patients treated with tocilizumab for 3 months [60(30, 120) min vs 0(0, 10) min, Z=-6.19, P<0.001], disease activity score of 28 joints-erythrocyte sedimentation rate (DAS28-ESR) [(4.6±1.5) vs (3.2±1.2), t=6.83, P<0.001], disease activity score of 28 joints-C-reactive protein (DAS28-CRP) [(4.2±1.4) vs (2.8±1.1), t=7.14, P<0.001], swollen joint count (SJC) [2(1, 7) vs 0(0, 2), Z=-4.31, P<0.001], tender joints count (TJC) [6(2, 13.5) vs 2(0,4), Z=-5.16, P<0.001], gray scale score (GS) [4.5(2, 6) vs 1(0, 3), Z=-5.86, P<0.001], intra-synovial blood flow energy Doppler (PD) [2(1, 3) vs 0(0, 0), Z=-5.38, P<0.001], white blood cell (WBC) [6.6(4.9, 8.4)×10 9/L vs 5.7(4.9, 7.3)×10 9/L, Z=-2.83, P=0.005], hemoglobin (Hb) [119(104, 131) g/L vs 123(113, 136) g/L, Z=-2.82, P=0.007], ESR [32(14.5, 50) mm/1 h vs 19 (10, 30) mm/1 h, Z=-3.31, P=0.001], CRP [11.40(3.02, 25.80) mg/L vs 3.49(1.30, 11.82) mg/L, Z=-2.78, P=0.004], D-dimer (D-D) [0.93(0.47, 2.07) mg/L vs 0.43(0.21, 0.80) mg/L, Z=-3.77, P<0.001] were significantly improved, and the difference was statistically significant. ② The serum levels of interleukin (IL)-2 [2.08(1.43, 2.76) pg/ml vs 1.21(0.54, 2.08) pg/ml, Z=-2.67, P=0.008], IL-6 [22.40(5.13, 67.27) pg/ml vs 14.63(5.27, 27.71) pg/ml, Z=-2.81, P=0.005], IL-10 [(2.53±0.68) pg/ml vs (1.74±0.74) pg/ml, t=2.60, P=0.017] were significantly changed, while serum levels of IL-4 [1.63(1.08, 3.38) pg/ml vs 1.33(0.97, 2.59) pg/ml, Z=-0.89, P=0.374], tumor necrosis factor (TNF) -α [4.04(1.41, 10.45) pg/ml vs 1.62(0.84, 3.79) pg/ml, Z=-1.92, P=0.056], IL-17 [4.68(1.67, 6.72) pg/ml vs 3.15(1.81, 5.29) pg/ml, Z=-0.53, P=0.594] were not significantly changed from baseline data. ③ There was poor consistency between ultrasonic response and DAS28-ESR response, simplified disease activity Index (SDAI) response and clinical disease activity index (CDAI) response ( Kappa coefficient: 0.142, 0.142, 0.191), but no consistency between ultrasonic response and DAS28-CRP response (Kappa coefficient: -0.015) were found. Receiver operating characteristic (ROC) curve showed that ultrasound was not statistically significantly different in assessing the remission of RA, indicating subclinical synovitis remained in ultrasound examination even though clinically remission could be reached based on the above scoring indexes in RA patients. ④ In terms of adverse reactions, neutrophils (NEU) of patients after 3 months' tocilizumab treatment [4.47(2.77, 5.39)×10 9/L vs 3.76(2.98, 4.74)×10 9/L, Z=-2.77, P=0.006], platelet count (PLT) [(291±84)×10 9/L vs (254±70)×10 9/L, t=4.76, P<0.001] were significantly decreased, high-density lipoprotein-cholesterol (HDL-C) [(1.22±0.27) mmol/L vs (1.39±0.34) mmol/L, t=3.12, P=0.003], low density lipoprotein-cholesterol (LDL-C) [(1.96±0.66) mmol/L vs (2.19±0.84) mmol/L, t=3.15, P=0.003], triglyceride (TG) [0.85(0.68, 1.08) mmol/L vs 0.93(0.71, 1.25) mmol/L, Z=-2.36, P=0.018] and total cholesterol (TC) [(4.18±1.04) mmol/L vs (4.52±1.16) mmol/L, t=3.33, P=0.002] were significantly different from baseline. Among 65 patients, 5 patients (7.7%) had transaminase abnormality, but returned to normal after symptomatic treatment. Conclusion:Tocilizumab treatment can effectively suppress the inflammatory reactions, improve the clinical symptoms and prognosis of patients, however, patients who judged as clinical remission according to the current clinical commonly scores may still have subclinical active disease, ultrasound results should be included as one criteria for disease remission assessment and take into consideration when adjusting treatrnent.