BACKGROUND: Primary studies suggest that coronary artery stenosis is highly exactly shown by 16-slice spiral CT coronary artery imaging.OBJECTIVE: To compare the accuracy and limitation between coronary angiography and multi-slice computed tomography (MSCT) coronary artery imaging to diagnose moderate and severe coronary artery stenosis. DESIGN, TIME AND SETTING: Clinical diagnostic study based on gold standard, which was carried out in the Department of Cardiology, Xuanwu Hospital, Capital Medical University from June 2005 to March 2006. PARTICIPANTS: Twenty-eight patients with suspected coronary arteriosclerotic heart disease were examined by 64-slice spiral CT coronary artery imaging and coronary artery angiography during the 1-month hospitalization in the Department of Cardiology, Xuanwu Hospital, Capital Medical University from June 2005 to March 2006. METHODS: 280 segments of 28 patients were quantitatively analyzed coronary artery stenosis by selective coronary artery angiography and multi-slice spiral CT imaging based on eye-measurement diameter method. MAIN OUTCOME MEASURES: True positive, true negative, false positive, false negative, sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of coronary artery stenosis were measured by multi-slice spiral CT imaging.RESULTS: All 28 patients were included in the final analysis. Multi-slice spiral CT imaging showed that the sensitivity, specificity, positive predictive value, and negative predictive value were 46.5%, 97.6%, 86.8%, and 84.3%, respectively. If excluding the effect of 31 coronary segments with severe calcification, the sensitivity, specificity, positive predictive value and negative predictive value were 66.7%, 98.6%, 90.3% and 93.6%, respectively.CONCLUSION: Multi-slice spiral CT imaging is simple, reliable, noninvasive and safe; moreover, it has a good potential for diagnosing especially excluding coronary arteriosclerotic heart disease, but still some limits.

BACKGROUND AND OBJECTIVEThe expression levels of glucose-regulated protein 78 (GRP78) were elevated and correlated with resistance to chemotherapy drug VP-16 in lung cancer cells. However, little is known about the relationship between its expression and resistance to cisplatin in lung cancer cells. The aim of this study was to investigate the expression of GRP78 under the induction of A23187 and its significance in the resistance to anti-tumor drugs cisplatin in a human lung cancer SPCA-1 cell line.

METHODSRT-PCR and Western blot were used to analyze the expression of GRP78 at mRNA and protein levels in SPCA-1 cell line induced byA23187 at different concentrations (0, 1, 2, 4, 6 microM). MTT was used to determine the effect of cisplation on cell survival.

RESULTSThe expressions of GRP78 at both mRNA and protein levels were increased obviously in SPCA-1 cell line induced by A23187, with a manner of dose-dependent of A23187 to a great degree; MTT assay showed that the cell survival rate of the A23187-induced group decreased significantly compare to the control group, also with a concentration-dependent manner of A23187.

CONCLUSIONThe expression of GRP78 at both mRNA and protein levels were increased obviously in SPCA-1 cell line induced by A23187. The enhancement of GRP78 showed a negative correlation with the cell survival rate treated by cisplatin. All these indicated that overexpression of GRP78 can enhance the sensitivity to cisplatin and there is correlation between the expression of GRP78 and resistance to cisplatin of human lung cancer SPCA-1 cell line.

Antineoplastic Agents ; pharmacology ; Blotting, Western ; Calcimycin ; pharmacology ; Cell Line, Tumor ; Cell Survival ; drug effects ; Cisplatin ; pharmacology ; Drug Resistance, Neoplasm ; genetics ; physiology ; Heat-Shock Proteins ; genetics ; metabolism ; Humans ; Reverse Transcriptase Polymerase Chain Reaction

Purpose: Male overweight and obesity could affect sperm quality and reproductive health. However, the impact of body mass index (BMI) on assisted reproductive technology (ART) outcomes in oligospermia and/or asthenospermia patients is yet lacking. This study aims to assess the impact of paternal BMI on ART and neonatal outcomes among oligozoospermia and/or asthenospermia patients undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). Materials and Methods: In this study, 2,075 couples undergoing their first fresh embryo transfer between January 2015 and June 2022 were recruited. Following the World Health Organization’s (WHO’s) categories, couples were stratified into three cohorts based on paternal BMI: normal weight (18.5–24.9 kg/m2), overweight (25.0–29.9 kg/m2), and obese (≥30.0 kg/m2). Modified Poisson regression models were used to assess the associations of paternal BMI with fertilization, in vitro embryonic development, and pregnancy outcomes. Logistic regression models were performed to investigate the associations of paternal BMI with pregnancy loss and neonatal outcomes. Furthermore, stratified analyses were performed based on fertilization methods, male infertility cause, and maternal BMI. Results: Higher paternal BMI is associated with a lower likelihood of achieving normal fertilized (p-trend=0.002), Day 3 transferable (p-trend=0.007), and high-quality embryos (p-trend=0.046) in IVF cycles, rather than in ICSI cycles. Paternal BMI of oligospermia or asthenospermia was negatively correlated with day 3 transferable (p-trend=0.013 and 0.030) and high-quality embryos (p-trend=0.024 and 0.027). Moreover, for neonatal outcomes, paternal BMI was positively associated with macrosomia (p-trend=0.019), large for gestational age (LGA) (p-trend=0.031), and very LGA (p-trend=0.045). Conclusions Our data suggested that higher paternal BMI was associated with fetal overgrowth, reduced fertilization, and embryonic development potential. Among males with oligospermia and/or asthenospermia, the impact of overweight and obesity on the choice of fertilization method and the long-term effects on their offspring need to be further investigated.

Objective:To establish a quality evaluation method for the simultaneous determination of Calycosin-7-O-β-D-Glucopyranoside and Lobetyolin in Danqi Xinmaikang boiled powders and pieces.Methods:Quantitative analysis of multi-components was performed to determine contents of Calycosin-7-O-β-D-Glucopyranoside and Lobetyolin with Calycosin-7-O-β-D-Glucopyranoside as the reference substance by single-maker (QAMS). The chromatogram conditions were established, with C18 column as solid phase, acetonitrile-water as flowing phase, 268 nm as detecting wavelength, 1.0 ml/min as flowing rate, 30 ℃ as column temperature, and 10 μl as injection volume.Results:The relative correction factor between Calycosin-7-O-β-D-Glucopyranoside and Lobetyolin was 1.14. There was no significant difference of measured values between the external standard method and QAMS ( P>0.05). With Calycosin-7-O-β-D-Glucopyranoside retention time of 1.00, the relative retention time of Lobetyolin was 1.51 and RSD was less than 5%. Conclusion:It is feasible and accurate to evaluate the quality of Danqi Xinmaikang boiled powders and pieces by QAMS.

The list of occupational diseases reflecting the latest advances in the identification and recognition of occupational diseases, and providing guidance on the protection of workers' health rights and interests and the prevention, recording, notification and compensation of related occupational diseases. Diagnostic criteria for occupational diseases are an important basis for making diagnoses attributable to occupational diseases, and provide a theoretical basis for health monitoring of occupational groups and occupational hygiene supervision. This thesis starts with the definition of the occupational disease elaborates in detail the development history of list of occupational diseases in International Labour Organization (ILO) , compares the list of occupational diseases in China (2013 version) with the list of occupational diseases in international (2010 version) , and then introduces in detail the latest diagnostic standards of the major occupational diseases. And finally, it puts forward relevant suggestions on the list and diagnostic level of China's occupational diseases, so as to provide certain insights for the further improvement of the list and diagnostic standards of occupational diseases.

The list of occupational diseases reflecting the latest advances in the identification and recognition of occupational diseases, and providing guidance on the protection of workers' health rights and interests and the prevention, recording, notification and compensation of related occupational diseases. Diagnostic criteria for occupational diseases are an important basis for making diagnoses attributable to occupational diseases, and provide a theoretical basis for health monitoring of occupational groups and occupational hygiene supervision. This thesis starts with the definition of the occupational disease elaborates in detail the development history of list of occupational diseases in International Labour Organization (ILO) , compares the list of occupational diseases in China (2013 version) with the list of occupational diseases in international (2010 version) , and then introduces in detail the latest diagnostic standards of the major occupational diseases. And finally, it puts forward relevant suggestions on the list and diagnostic level of China's occupational diseases, so as to provide certain insights for the further improvement of the list and diagnostic standards of occupational diseases.

Objective To investigate the involvement of calmodulin(CaM)in the pathogenesis of Alzheimer disease(AD)and the mechanism by which CaM binds to amyloid-β(Aβ).Methods The hub genes expressed in AD and predicted to be the target proteins for AD prevention and treatment were obtained using bioinformatics methods.The GST-Aβ1-42 recombinant plasmid was constructed through genetic recombination and was then sequenced.The recombinant plasmids were identified using agarose gel electrophoresis,while the extracted and purified GST-Aβ1-42 fusion protein was confirmed using SDS-PAGE gel electrophoresis.GST pull-down assay was used to detect the interaction between GST-Aβ1-42 protein and CaM,expressed in the plasmid.Results The top 20 hub genes in degree ranking were obtained.The DNA sequencing results of the plasmid proved that the recombinant plasmid was successfully constructed.The agarose gel electrophoresis results indicated that the fragment digested by the enzyme was similar to the molecular weight of the Aβ1-42 gene seg-ments,further proving the successful construction of the recombinant plasmid.Binding of GST-Aβ1-42 protein to CaM in a concentration dependent manner was revealed through the GST pull down experiment.Conclusion The GST-Aβ1-42 recombinant plasmid is success-fully constructed and is shown to bind to CaM.

Objective:To investigate the current situation of the use of transjugular intrahepatic portosystemic shunt (TIPS) for portal hypertension, which should aid the development of TIPS in China.Methods:The China Portal Hypertension Alliance (CHESS) initiated this study that comprehensively investigated the basic situation of TIPS for portal hypertension in China through network research. The survey included the following: the number of surgical cases, main indications, the development of Early-TIPS, TIPS for portal vein cavernous transformation, collateral circulation embolization, intraoperative portal pressure gradient measurement, commonly used stent types, conventional anticoagulation and time, postoperative follow-up, obstacles, and the application of domestic instruments.Results:According to the survey, a total of 13 527 TIPS operations were carried out in 545 hospitals participating in the survey in 2021, and 94.1% of the hospital had the habit of routine follow-up after TIPS. Most hospitals believed that the main indications of TIPS were the control of acute bleeding (42.6%) and the prevention of rebleeding (40.7%). 48.1% of the teams carried out early or priority TIPS, 53.0% of the teams carried out TIPS for the cavernous transformation of the portal vein, and 81.0% chose routine embolization of collateral circulation during operation. Most of them used coils and biological glue as embolic materials, and 78.5% of the team routinely performed intraoperative portal pressure gradient measurements. In selecting TIPS stents, 57.1% of the hospitals woulel choose Viator-specific stents, 57.2% woulel choose conventional anticoagulation after TIPS, and the duration of anticoagulation was between 3-6 months (55.4%). The limitation of TIPS surgery was mainly due to cost (72.3%) and insufficient understanding of doctors in related departments (77.4%). Most teams accepted the domestic instruments used in TIPS (92.7%).Conclusions:This survey shows that TIPS treatment is an essential part of treating portal hypertension in China. The total number of TIPS cases is far from that of patients with portal hypertension. In the future, it is still necessary to popularize TIPS technology and further standardize surgical indications, routine operations, and instrument application.

The upset insomnia caused by life and work pressure has seriously affected the physical and mental health of modern people and induced many diseases. The quality of Chinese medicine for nourishing heart and tranquilizing mind is stable, and it has a significant effect on the treatment of insomnia, with fewer adverse reactions, and no dependence on sedative and hypnotic as chemical drugs. The Chinese herbal pieces and preparations for nourishing heart and tranquilizing mind can be divided into psychotropic and sedative drugs according to their functions. Their active ingredients mainly include flavonoids, alkaloids, organic acids, polysaccharides, amino acids and vitamins, etc. They are mostly used in the treatment of cardiovascular diseases and central nervous system inhibition. In this paper, the types and active ingredients and development tendency and application status of the Chinese herbal pieces and preparations of nourishing heart and tranquilizing mind were reviewed individually, in order to provide reference for the development of drugs of nourishing heart and tranquilizing mind in the field of clinical application and related drugs.

Pyroptosis is a programmed death of inflammatory cells triggered by pathogen invasion,dependent on caspase activation,through both classical and non-classical pyroptosis pathways.Cell pyroptosis is related to the occurrence and development of a variety of animal infectious diseases caused by microbial infection.After microorganisms invading,cells are stimulated by pathology-re-lated molecular patterns,causing strong immune response,stimulating inflammatory signaling pathways,and then activating inflammasome,leading to pyroptosis.The immune system has e-volved multiple mechanisms to fight microbial infections and regulate inflammatory responses.The innate immune system,by recognizing microbial molecules in pathogens and responding quickly by producing inflammasome and activating pyroptosis,helps clear pathogens to prevent infection and maintain the normal functioning of the body.A thorough study of the pathogenesis and immune es-cape mechanism of cell pyroptosis in animal infectious diseases will provide a new direction for the treatment of animal infectious diseases.