Background The widespread use of herbicides has led to environmental contamination and has implications for human health. The liver is an important organ for the detoxification of environmental pollutants; however, studies on the association between herbicide exposure and liver function are limited. Objectives To investigate the association between baseline serum herbicide levels and changes in liver enzyme levels and liver enzyme abnormalities over a 5-year period in middle-aged and older adults. Methods This study was based on a nested case-control population of type 2 diabetes established in the Dongfeng-Tongji cohort, with a total of 1388 subjects included in this study and followed up for 5 years. Epidemiological data were collected through questionnaires, and baseline serum concentrations of three herbicides (metolachlor, propham, and acetochlor) were measured by gas chromatography-triple quadrupole mass spectrometry. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were detected at baseline and follow-up visits. The associations between baseline serum herbicide levels and changes in AST and ALT over 5 years were assessed using linear regression models with herbicide levels categorized into quartiles, adjusting for age, sex, education level, smoking status, drinking status, physical activity, body mass index, and new-onset type 2 diabetes occurred during follow-up. The relationship between baseline serum herbicide levels and the risk of liver enzyme abnormalities during follow-up was further analyzed using logistic regression models. Results The positive rates of metolachlor, propham, and acetochlor were all higher than 80%, and their spiked rates of recovery ranged from 73.46% to 106.77%. The mean ± standard deviation of the age of subjects at baseline was (62.7±7.6) years, with 34.1% being male. The median serum levels of metolachlor, propham, and acetochlor at baseline were 0.05, 0.16, and 0.03 ng·mL⁻¹, respectively. There was no significant difference in baseline serum herbicide levels between the normal and abnormal liver enzyme groups at follow-up (P >0.05). The baseline liver enzyme levels and the changes in AST and ALT over 5 years in those who developed abnormal liver enzymes were significantly higher than those in the normal liver enzyme group (P <0.05). The linear regression analysis showed that the changes in AST increased progressively over 5 years in the second, third, and fourth quartiles of propham compared to the lowest quartile group (the second quartile: b=1.49, 95%CI: 0.10, 2.87; the third quartile: b=1.52, 95%CI: 0.14, 2.90; the fourth quartile: b=1.69, 95%CI: 0.31, 3.08; P <0.05). The associations of serum metolachlor and acetochlor with changes in AST were not significant. Additionally, no significant relationships were found between the three serum herbicides and the changes in ALT over 5 years or the risk of liver enzyme abnormalities. Conclusion Serum propham levels in middle-aged and older adults are positively associated with changes in liver enzyme AST, which may have an effect on liver function. More studies are needed to provide scientific evidence for the association between herbicide exposure and liver function.

Sports biomechanics is a multidisciplinary applied discipline that studies the mechanics of human movement and plays a crucial role in scientific research and technological support in competitive sports.This paper reviews the research methods in competitive sports biomechanics and focuses on research progress in the year 2023 in three key areas:improving sports performance,preventing sports injuries,and developing sports equipment.The goal is to provide new insights to further advance the application of sports biomechanics in competitive sports.

Transradial approach is the classical access for coronary angiography and percutaneous coronary intervention (PCI). With the increase in the number of interventional procedures, some disadvantages of the transradial approach have also been found, it is easy to lead to various complications, such as radial artery occlusion, radial nerve injury, and puncture difficulties after radial artery spasm. Therefore, some experts put forward the approach of distal radial artery approach for interventional therapy, which has the advantages of convenient positioning, easy postoperative hemostasis, less damage to the proximal radial artery and improving patients' comfort. However, there is no special distal radial artery hemostat in clinic, which limits the development of this approach to a certain extent. Therefore, based on the principles of anatomy and physics, cardiovascular physician at Jiading District District Central Hospital in Shanghai designed and invented a distal radial artery hemostatic device, which is convenient for clinical hemostasis of distal radial artery puncture, and obtained the National Utility Model Patent (patent number: ZL 2021 2 2097829.6). The hemostatic device consists of a glove body with a silicone gasket protruding towards the skin on the inner surface and a binding component. The patient's hand is inserted into the glove body, and after being fixed by the restraint component, the silicone gasket can effectively compress the location of the radial artery puncture point, and play a good hemostatic effect with less pressure, avoid the common complications of proximal radial artery hemostatic, and reduce the discomfort of the patient. Has good application value.

ObjectiveTo predict the potential nephrotoxic components in traditional Chinese medicine health food products based on the Traditional Chinese Medicine Toxicity Alert System and Basic Toxicology Database （TCMTAS-BTD）， screen and validate the predicted components by cell and animal experiments， and decipher the mechanism of nephrotoxicity by network pharmacology. MethodTCMTAS-BTD was utilized to predict the toxicity of 3 540 compounds found in the catalogue of traditional Chinese health food ingredients. In the cell experiment， the top 5 compounds with high toxicity probability were screened by measurement of cell proliferation and viability （CCK-8） and high-content screening. ICR mice were randomized into a control group， a low-dose （2.91 mg·kg^-1·d^-1） ecliptasaponin A， and a high-dose （29.1 mg·kg^-1·d^-1） ecliptasaponin A group， with 10 mice in each group， and treated continuously for 28 days. During the experiment， the general conditions of the rats were observed， and the kidney index was calculated. The levels of serum creatinine （SCr） and blood urea nitrogen （BUN） in the serum as well as the content of malondialdehyde （MDA） and superoxide dismutase （SOD） in the renal tissue were measured. The pathological changes of the kidney were observed. Network pharmacology was employed to predict the potential pathways of nephrotoxicity. Finally， the pathway-associated proteins were validated by Western blot. ResultThe top 5 compounds with high probability of nephrotoxicity were ecliptasaponin A， chrysophanol， rutaecarpine， tanshinoneⅠ， and geniposidic acid. In the cell experiment， CCK-8 results showed that 10 μmol·L^-1 ecliptasaponin A， 60 μmol·L^-1 chrysophanol， 40 μmol·L^-1 rutaecarpine， and 20 μmol·L^-1 tanshinone I altered the viability of HK-2 cells. High-content analysis showed that 10 μmol·L^-1 ecliptasaponin A， chrysophanol， rutaecarpine， and tanshinone Ⅰ reduced the cell number （P<0.05， P<0.01）. The animal experiment showed that the mice in the high-dose ecliptasaponin A group presented slow movement， slow weight gain （P<0.01）， increased kidney index （P<0.01）， elevated SCr， BUN， and MDA levels （P<0.01）， and lowered SOD level （P<0.01）. Mild histopathological changes were observed in the high-dose ecliptasaponin A group. The network pharmacology results showed that the key targets of nephrotoxicity induced by ecliptasaponin A were mainly enriched in the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt） signaling pathway， prostatic cancer and lipid and atherosclerosis pathways. Western blot results verified that high dose of ecliptasaponin A raised the phosphorylation levels of PI3K and Akt （P<0.01）. ConclusionOn day 28 of administration， 29.1 mg·kg^-1 ecliptasaponin A was found to induce renal injury in rats. The mechanism may be related with the PI3K/Akt signaling pathway， which implied that excessive and prolonged usage of Ecliptae Herba may increase the incidence of adverse drug reactions.

ObjectiveTo construct a cough model induced by chemical stimuli by whole-body plethysmography （WBP） for counting coughs based on cough waveforms， and use this model to explore the antitussive effect of GK-A. MethodDifferent chemical stimuli were used to induce coughs in mice or guinea pigs. Respiratory waveforms were monitored by WBP， and the recognizable and typical cough waveforms were selected for cough counting. Guinea pigs were induced to cough with different concentrations of citric acid or capsaicin， and cough waveforms were used to optimize the stimulation conditions. The optimized guinea pig model of cough was validated with dextromethorphan， and the optimized guinea pig model of capsaicin-induced cough was used to evaluate the antitussive effect of GK-A. ResultWBP could count the coughs induced by capsaicin and citric acid in guinea pigs by recognizable and typical respiratory waveforms. The optimized stimulation conditions were capsaicin concentration of 100 µmol·L^-1 and nebulization for 2 min. The validation results showed that compared with the model group， the dextromethorphan group of guinea pigs had reduced coughs （P<0.05） and prolonged cough latency （P<0.01）. GK-A prolonged the cough latency （P<0.05） and reduced coughs （P<0.05） in the mouse model of ammonia-induced cough. In the guinea pig model of capsaicin-induced cough， GK-A prolonged cough latency （P<0.05）， reduced coughs （P<0.05）， and decreased substance P （SP） content in the guinea pig serum （P<0.05， P<0.01）. ConclusionA guinea pig model of capsaicin-induced cough was successfully established based on cough waveform counting， which provided an objective and accurate cough counting method. GK-A has antitussive effects， possibly by inhibiting the neuropeptide SP.

Molecular knowledge of human gastric corpus epithelium remains incomplete. Here, by integrated analyses using single-cell RNA sequencing (scRNA-seq), spatial transcriptomics, and single-cell assay for transposase accessible chromatin sequencing (scATAC-seq) techniques, we uncovered the spatially resolved expression landscape and gene-regulatory network of human gastric corpus epithelium. Specifically, we identified a stem/progenitor cell population in the isthmus of human gastric corpus, where EGF and WNT signaling pathways were activated. Meanwhile, LGR4, but not LGR5, was responsible for the activation of WNT signaling pathway. Importantly, FABP5 and NME1 were identified and validated as crucial for both normal gastric stem/progenitor cells and gastric cancer cells. Finally, we explored the epigenetic regulation of critical genes for gastric corpus epithelium at chromatin state level, and identified several important cell-type-specific transcription factors. In summary, our work provides novel insights to systematically understand the cellular diversity and homeostasis of human gastric corpus epithelium in vivo.
Humans ; Epigenesis, Genetic ; Gastric Mucosa/metabolism* ; Chromatin/metabolism* ; Stem Cells ; Epithelium/metabolism* ; Fatty Acid-Binding Proteins/metabolism*

Background: Red blood cell distribution width/platelet count ratio (RPR) is a reliable prognostic assessment indicator for numerous diseases. However, no studies to date have examined the relationship between RPR and the prognosis of diffuse large B-cell lymphoma (DLBCL).Therefore, this study aimed to investigate the correlation between RPR and the clinical characteristics and prognosis of patients with diffuse large B-cell lymphoma. Methods: We retrospectively studied 143 patients with newly diagnosed DLBCL and used the median value as the RPR threshold. We also investigated the correlation of pretreatment RPR level with clinical characteristics and its impact on DLBCL prognosis. Results: Using the median value as the cut-off, patients with DLBCL were divided into a low RPR group (＜0.0549) and a high RPR group (≥0.0549). Patients in the high RPR group were older, had a later Ann Arbor stage, were prone to bone marrow invasion, and had a higher National Comprehensive Cancer Network International Prognostic Index score (P ＜ 0.05). A survival analysis showed that progression-free survival (PFS) (P =0.003) and overall survival (OS) (P ＜0.0001) were significantly shorter in the high versus low RPR group. A multifactorial Cox analysis showed that bone marrow invasion and elevated lactate dehydrogenase (LDH) were separate risk factors for PFS (P ＜0.05), while an RPR ≥0.0549 and elevated LDH were separate risk factors for OS (P ＜0.05). Conclusion A high RPR (≥0.0549) in patients with newly diagnosed DLBCL is an independent risk factor for a poor prognosis.

【Objective】 To investigate the characteristics of HBV serological markers of NAT reactive blood donors under different HBsAg status. 【Methods】 NAT reactive samples, with HBsAg-, HBsAg+ /retest - and HBsAg+ by single reagent were collected from September 2021 to May 2022 in our laboratory. The TMA non-reactive samples were retested by Roche PCR, then HBsAg, anti-HBs, HBeAg, anti-HBe and anti-HBc were detected by ECLI for statistical analysis. 【Results】 A total of 66 samples were collected, among which 55 were HBsAg-/NAT+. The positive rate of anti-HBc, anti-HBs+ anti-HBc, anti-HBe+ anti-HBc was 87.3% (48/55), 43.6% (24/55) and 45.5% (25/55), respectively. The positive rate of anti-HBs was 10.9% (6/55) and the overall negative rate was 1.8% (1/55). In 7 HBsAg+ initially/retest -/NAT+ samples, the positive rate of anti-HBc was 100%(7/7), and the positive rate of anti-HBe+ anti-HBc was 71.4%(5/7). In 4 HBsAg+ /NAT+ samples by single reagent, the positive rate of HBsAg+ anti-HBs+ anti-HBe+ anti-HBc was 50% (2/4), and positive rate of anti-HBe+ anti-HBc was100% (4/4). Samples, not reactive to TMA discriminatory and anti-HBc negative, were also non-reactive to individual PCR retest. There were significant differences in the positive rates of anti-HBe+ anti-HBc between HBsAg-/NAT+ samples and HBsAg+ /NAT+ (single reagent) samples (P<0.05). 【Conclusion】 Most HBsAg-/NAT+ blood donors were occult hepatitis B virus infection.The anti-HBe+ anti-HBc positive were correlated with HBV infection status. Non-reactivity discriminated by TMA plus anti-HBc negative do not exclude HBV DNA non-reactivity.

The authors introduced the construction of one-stop admission service in a large general hospital.Measures were carried out by implementing the measures of one window handling of admission business, building one-stop pre-hospital preparation center, optimizing the operational pattern of pre-hospital examination, strictly controlling the hospitalization time of surgical patients, optimizing the information system according to admission criteria, providing personalized services for clinic and implementing quality monitoring.It effectively improved the pre-hospital examination rate, shortened the waiting time and the average length of stay of the patients undergoing elective surgery, and increased the satisfaction of pre-hospital patients.

Objective:To investigate the advantages and disadvantages of percutaneous compression plate (PCCP) for femoral neck fractures in the elderly patients.Methods:A retrospective study was conducted of the 31 elderly patients with femoral neck fracture who had been treated with PCCP from January 2012 to December 2018 at Orthopaedic Department, The First People's Hospital of Yancheng, Orthopaedic Department, The Ninth People's Hospital of Wuxi and Department of Orthopaedics, The People's Hospital of Wuxi. They were 16 men and 15 women, aged from 65 to 80 years (average, 70.5 years). By the Garden classification, 7 cases were type Ⅱ, 15 cases type Ⅲ and 9 cases type Ⅳ; by the Singh index, 4 cases were level Ⅲ, 11 cases level Ⅳ, 10 cases level Ⅴ and 6 cases level Ⅵ. The time from injury to operation ranged from 3 to 14 days (average, 5.8 days). The operation time, intraoperative blood loss, fracture reduction, fracture union time, complications and functional recovery of the hip were observed.Results:The operation time averaged 73.4 min and intraoperative blood loss 116.4 mL. At one week after operation, the Garden alignment index was level Ⅰ in 25 cases and level Ⅱ in 6. Superficial incision infection was noted in one case intraoperatively. Follow-ups for the 31 patients ranged from 12 to 47 months (mean, 18.9 months). All the fractures united after 4.9 months on average (from 4 to 8 months). Delayed union occurred in 2 cases, neck shortening in 12 cases, and avascular necrosis of femoral head in 3 displaced subcranial fractures 2 of which were high shear ones. The necrosis of femoral head was treated by arthroplasty in 2 and by conservative treatment in one. The Harris hip scores at the last follow-up for the 31 patients averaged 90.9 (from 75 to 100), giving 15 excellent, 12 good and 4 fair cases and an excellent to good rate of 87.1% (27/31).Conclusions:In treatment of femoral neck fractures in the elderly patients, PCCP has advantages of allowing early weight-bearing after operation, a high rate of fracture union, limited complications and quick and fine functional recovery of the hip. However, it should be used with caution in patients with severe osteoporosis, displaced subcranial or high shear fracture.