Evaluating the Protective Effectiveness of Rubber Glove Materials Against Organic Solvents Upon Repeated Exposure and Decontamination

Background@#Glove reuse poses risks, as chemicals can persist even after cleaning. Decontamination methods like thermal aeration, recommended by US OSHA, vary in effectiveness. Some studies show promising results, while others emphasize the importance of considering both permeation and tensile strength changes. This research advocates for informed glove reuse, emphasizing optimal thermal aeration temperatures and providing evidence to guide users in maintaining protection efficiency. @*Methods@#The investigation evaluated Neoprene and Nitrile gloves (22 mils). Permeation tests with toluene and acetone adhered to American Society for Testing Materials (ASTM) F739 standards. Decontamination optimization involved aeration at various temperatures. The experiment proceeded with a maximum of 22 re-exposure cycles. Tensile strength and elongation were assessed following ASTM D 412 protocols. Breakthrough time differences were statistically analyzed using t-test and ANOVA. @*Results@#At room temperature, glove residuals decreased, and standardized breakthrough time (SBT)2 was significantly lower than SBT1, indicating reduced protection. Higher temperature decontamination accelerated residual removal, with ΔSBT (SBT2/SBT1) exceeding 100%, signifying restored protection. Tensile tests showed stable neoprene properties postdecontamination. Results underscore thermal aeration's efficacy for gloves reuse, emphasizing temperature's pivotal role. Findings recommend meticulous management strategies, especially post-breakthrough, to uphold glove-protective performance. @*Conclusions@#Thermal aeration at 100°C for 1 hour proves effective, restoring protection without compromising glove strength. The study, covering twenty cycles, suggests safe glove reuse with proper decontamination, reducing costs significantly. However, limitations in chemical-glove combinations and exclusive focus on specific gloves caution against broad generalization. The absence of regulatory directives on glove reuse highlight the importance of informed selection and rigorous decontamination validation for workplace safety practices.

Clinical and genetic characteristics of children with dopa-responsive dystonia caused by tyrosine hydroxylase gene variations / 中华儿科杂志

Objective: To explore the clinical and genetic characteristics of children with dopa-responsive dystonia (DRD) caused by tyrosine hydroxylase (TH) gene variations. Methods: Clinical data of 9 children with DRD caused by TH gene variations diagnosed in the Department of Children Rehabilitation, the Third Affiliated Hospital of Zhengzhou University from January 2017 to August 2022 were retrospectively collected and analyzed, including the general conditions, clinical manifestations, laboratory tests, gene variations and follow-up data. Results: Of the 9 children with DRD caused by TH gene variations, 3 were males and 6 were females. The age at diagnosis was 12.0 (8.0, 15.0) months. The initial symptoms of the 8 severe patients were motor delay or degression. Clinical symptoms of the severe patients included motor delay (8 cases), truncal hypotonia (8 cases), limb muscle hypotonia (7 cases), hypokinesia (6 cases), decreased facial expression (4 cases), tremor (3 cases), limb dystonia (3 cases), diurnal fluctuation (2 cases), ptosis (2 cases), limb muscle hypertonia (1 case) and drooling (1 case). The initial symptom of the very severe patient was motor delay. Clinical symptoms of the very severe patient included motor delay, truncal hypotonia, oculogyric crises, status dystonicus, hypokinesia, decreased facial expression, and decreased sleep. Eleven TH gene variants were found, including 5 missense variants, 3 splice site variants, 2 nonsense variants, and 1 insertion variant, as well as 2 novel variants (c.941C>A (p.T314K), c.316_317insCGT (p.F106delinsSF)). Nine patients were followed up for 40 (29, 43) months, and no one was lost to follow-up. Seven of the 8 severe patients were treated by levodopa and benserazide hydrochloride tablets and 1 severe patient was treated by levodopa tablets. All the severe patients responded well to levodopa and benserazide hydrochloride tablets or levodopa tablets. Although the weight of the patients increased and the drug dosage was not increased, the curative effect remained stable and there was no obvious adverse reaction. One severe patient developed dyskinesia in the early stage of treatment with levodopa and benserazide hydrochloride tablets and it disappeared after oral administration of benzhexol hydrochloride tablets. Until the last follow-up, motor development of 7 severe patients returned to normal and 1 severe patient still had motor delay due to receiving levodopa and benserazide hydrochloride tablets for only 2 months. The very severe patient was extremely sensitive to levodopa and benserazide hydrochloride tablets and no improvement was observed in this patient. Conclusions: Most of the DRD caused by TH gene variations are severe form. The clinical manifestations are varied and easily misdiagnosed. Patients of the severe patients responded well to levodopa and benserazide hydrochloride tablets or levodopa tablets, and it takes a long time before full effects of treatment become established. Long-term effect is stable without increasing the drug dosage, and no obvious side effect is observed.

Analysis of Pathogenesis and Treatment of Chronic Coronary Syndrome Based on Vessel-collateral Theory / 中国实验方剂学杂志

Based on the syndrome and treatment system of collateral disease， and inheriting the development of the bloodline theory of traditional Chinese medicine （TCM）， academician WU Yi-ling systematically constructed the vessel-collateral theory of TCM and proposed that its core theory was the theory of Yingwei， that is， "Ying in the vein， and Wei outside the vein" （Huangdi Neijing·Lingshu·Yingwei Shenghui）， "obstructing of Yingwei， congelation of blood" （Treatise on Febrile Diseases· Pulse Differentiation Method）， "pathogen transferring through blood vessels， obstructed by blocking" （Jinkui Yaolue·Zangfu Jingluo Xianhou Bingmaizheng First）， and "damage of the heart， adjust its Yingwei". Based on the consistency of vessel-collateral as the channel of blood circulation in TCM with the blood vessels in western medicine， and guided by the Yingwei theory of vessel-collateral theory， the diagnostic criteria of syndrome differentiation of disease of vessel-collateral and vascular system represented by coronary heart disease， arrhythmia， heart failure and others was established to guide the prevention and treatment of vascular diseases. Based on the above analysis， guided by the Yingwei theory of vessel-collateral theory， and on the basis of related researches of vessel-collateral and vascular system， this paper discussed the etiology and pathogenesis of chronic coronary syndrome （CCS） in TCM. Taking useful collateral with unblocking as the treatment principle， the representative Tongluo prescription （Tongxinluo） was constructed， the research progress of Tongxinluo from various aspects such as animal experiment research， pharmacological research and clinical evidence-based research was summarized， a comprehensive system from etiology， pathogenesis， syndrome differentiation to treatment was formed， in order to provide new ideas for the clinical treatment of CCS.

Rules of Syndrome and Treatment of Unstable Angina Pectoris Guided by Vessel-collateral Theory and Mechanism Analysis Based on Network Pharmacology / 中国实验方剂学杂志

Objective:Guided by nutrient-defense stages in the vessel-collateral theory， the modern medical cases of unstable angina pectoris（UAP） were systematically collated and analyzed to explore the rules of syndrome and treatment of UAP and the molecular mechanism of core Chinese herbal combination in the treatment of UAP based on network pharmacology. Method:All medical cases with UAP treated by Chinese medicinal compounds were retrieved from PubMed，China National Knowledge Infrastructure （CNKI），Wanfang Data， VIP， and SinoMed published between database inception and November 2020. The syndromes of medical cases were determined based on the nutrient-defense stages of the vessel-collateral theory. Rules of syndrome and treatment of UAP were investigated by data mining methods， such as frequency statistics， cluster analysis， and enhanced FP-Growth algorithm. The molecular mechanism of core Chinese herbal combination in the treatment of UAP was analyzed by network pharmacology. Result:The first four syndromes of UAP with high frequencies were deficiency and stagnation of collateral Qi， blood stasis obstructing collaterals， depression and stagnation of collateral Qi， and turbid phlegm obstructing collaterals. The Chinese herbal medicines with high frequencies included Salviae Miltiorrhizae Radix et Rhizoma， Glycyrrhizae Radix et Rhizoma， Chuanxiong Rhizoma， and Astragali Radix， which were effective in resolving stasis， dredging collaterals， replenishing Qi， consolidating defensive Qi， regulating Qi， relieving depression， and dispelling phlegm. The association analysis indicated that the core Chinese herbal combination in the treatment of UAP was Salviae Miltiorrhizae Radix Chuanxiong Rhizoma-Astragali Radix. Four Chinese herbal combinations were obtained by cluster analysis. As revealed by network pharmacology， the key components of Salviae Miltiorrhizae Radix et Rhizoma-Chuanxiong Rhizoma-Astragali Radix in the treatment of UAP included quercetin， luteolin， and tanshinone Ⅱ_A， and the key targets included serine/threonine-protein kinase 1 （Akt1）， mitogen-activated protein kinase 1 （MAPK1）， Jun， interleukin （IL）-6， and MAPK8. Kyoto Encyclopedia of Genes and Genomes （KEGG） pathway analysis showed that phosphatidylinositol-3-kinase （PI3K）/protein kinase B （Akt） signaling pathway might serve as the main pathway for its therapeutic efficacy. Conclusion:The basic pathogenesis of UAP is deficiency/depression and stagnation of collateral qi and turbid phlegm obstructing collaterals. The treatment should follow the principles of replenishing Qi， resolving stasis， and dredging collaterals， assisted with regulating Qi and resolving phlegm. The therapeutic efficacy of Salviae Miltiorrhizae Radix-Chuanxiong Rhizoma-Astragali Radix was achieved via multi-component， multi-target， and multi-pathway. This study is expected to inspire future UAP-related studies at the molecular level based on vessel-collateral theory.

Collaterals Doctrine Guided Investigation into Traditional Chinese Medicine Pathogenesis and Clinical Treatment of Myocardial Fibrosis Following Acute Myocardial Infarction / 中国实验方剂学杂志

Interventional or thrombolytic therapy for acute myocardial infarction （AMI） has the effect of opening occluded coronary arteries. However， due to no myocardial regurgitation， ischemia/reperfusion injury and microvascular structure and function destruction， leading to myocardial fibrosis following AMI， ventricular remodeling， and even cardiac failure may occur. Collaterals doctrine is used to guide the investigation into traditional Chinese medicine pathogenesis and clinical treatment of myocardial fibrosis following AMI. Consequently， it proposes the pathogenesis characteristic of "Qi deficiency and blood stasis， collaterals obstruction" and medication principle of "dispersing and dredging"， to develop the formula of Tongxinluo. Fundamental and clinical researches have demonstrated it can effectively protect the structure and function of myocardial microvascular endothelial cells， improve no reflow and reperfusion injury， and inhibit myocardial fibrosis after AMI， which further supports scientific value of the collaterals doctrine.

A retrospective study to compare the treatment outcomes with and without surgical navigation for fracture of the orbital wall / 中华创伤杂志(英文版)

PURPOSE@#To evaluate the outcomes with and without aid of a computer-assisted surgical navigation system (CASNS) for treatment of unilateral orbital wall fracture (OWF).@*METHODS@#Patients who came to our hospital for repairing unilateral traumatic OWF from 2014 to 2017 were included in this study. The patients were divided into the navigation group who accepted orbital wall reconstruction aided by CASNS and the conventional group. We evaluated the surgical precision in the navigation group by analyzing the difference between actual postoperative computed tomography data and preoperative virtual surgical plan through color order ratios. We also compared the duration of surgery, enophthalmos correction, restoration of orbital volumes, and improvement of clinical symptoms in both groups systemically. Quantitative data were presented as mean ± SD. Significance was determined by the two-sample t-test using SPSS Version 19.0 A p < 0.05 was considered statistically significant.@*RESULTS@#Seventy patients with unilateral OWF were included in the study cohort. The mean difference between preoperative virtual planning and actual reconstruction outcome was (0.869 ± 0.472) mm, which means the reconstruction result could match the navigation planning accurately. The mean duration of surgery in the navigation group was shorter than it is in the control group, but not significantly. Discrepancies between the reconstructed and unaffected orbital-cavity volume and eyeball projection in the navigation group were significantly less than that in the conventional group. One patient had remnant diplopia and two patients had enophthalmos after surgery in the navigation group; two patients had postoperative diplopia and four patients had postoperative enophthalmos in the conventional group.@*CONCLUSION@#Compare with the conventional treatment for OWF, the use of CASNS can provide a significantly better surgical precision, greater improvements in orbital-cavity volume and eyeball projection, and better clinical results, without increasing the duration of surgery.

A Summary of Health Preserving Thoughts of Confucianism，Buddhism，Taoism and Medicine (Ⅱ) / 中国实验方剂学杂志

Health-preservation thoughts of the four major schools (Confucianism, Buddhism, Taoism and Medicine) have important reference values for the health preservation and health care industry. The core of health-preservation thought of the Taoism is taking mind training as the focus and physical exercise as the supplementary means, Taoism is nature-admiring, emphasizes the idea of natural laws and inaction and humanity follows natural laws, as well as advocates following nature's courses, realizing the passive inaction, and keeping calmness, also, it advocates the way of keeping good health through preserving vital essence, energy and mentality, in order to achieve the purpose of training vital essence into energy, training energy into mentality and maintaining complete vital essence, energy and vitality. Through long-term development, Medicine has formed a relatively complete set of theoretical and systematic health-preservation methods. The holistic concept of Medicine emphasizes the uniformity among human, nature and society, considers human body as an organic whole, and advocates the health-preservation thoughts of living in harmony with nature, accommodating the four seasons, keeping good circulation of energy and blood, dredging collaterals, nourishing essence and replenishing energy, accumulating healthy energy and repelling pathogenic factors, maintaining the inseparability of the body and spirits, as well as taking proper exercises and keeping mental calmness. Based on the health-preservation thoughts of the four major schools, this paper summarizes the modern health-preservation guiding thoughts of dredging collaterals, nourishing essence, taking exercises and keeping mental calmness, in order to provide the theoretical guidance for traditional Chinese medicine health-preservation services.

Historical Review and Reflection About Application of Traditional Chinese Medicine in Epidemic Diseases / 中国实验方剂学杂志

Related records about discipline of diagnosis and treatment of exogenous febrile diseases by traditional Chinese medicine (TCM) were reviewed to summarize TCM knowledge about etiology, pathogenesis, progress and treatment of infectious epidemic diseases among exogenous febrile diseases. In consideration of onset time and major clinical manifestations of novel coronavirus pneumonia (NCP), this disease is considered as within the scope of pestilence in TCM, it is located in the lung, with etiology being poison of winter-warm syndrome, the viruses enter body via mouth and nose, and invade pulmonary collaterals. Based on the syndrome characteristics proposed in diagnosis and treatment schemes of various regions as well as the researches on medication rules, the present study points out the core pathogenesis of NCP is epidemic toxin invading the lung, pathogenic heat obstructing the lung and toxic heat blocking the lung. It also analyzes theoretical formula features of TCM Lianhua Qingwen and related clinical and experimental research results, in order to prove the clinical value of this drug in the outbreak of NCP.

A Summary of Health Preserving Thoughts of Confucianism, Buddhism, Taoism and Medicine (Ⅰ) / 中国实验方剂学杂志

Traditional health preservation thoughts of four major schools (Confucianism, Buddhism, Taoism and medicine) were systematically summarized. The proposed health-preserving ideas of physical health maintenance by Confucianism (self-cultivation, moderation and harmony), mental health maintenance by Buddhism (keeping still and in deep meditation, insight, kindness and help), health preservation by Taoism (following the nature, enhancing spirit and energy) and life protecting by medicine (dredging collaterals, Qi and blood, possessing both the form and the spirit), and the health-preserving methods under the guidance of such ideas have important guiding value for current industry of traditional health care.

Research on Guidance of Prevention and Treatment of Vascular Diseases by Yingwei Theory of Vessel-collateral Theory / 中国实验方剂学杂志

The blood-vein theory is inherited and developed. Combined with the related theory features of Qi and blood of traditional Chinese medicine(TCM), the progress results in two national 973 plan projects undertaken are learned from, the vessel-collateral theory guiding the prevention and treatment of vascular lesions is systematically built, the academic development of TCM collateral disease discipline is pushed from "treatment of symptoms of collateral disease" to study on "vessel-collateral theory", a new stage in the history. The pathogenesis, basic pathogenesis, clinical syndrome and syndrome differentiation therapy of vessel-collateral lesions are systematically studied, Yingwei theory, the core content of vessel-collateral theory, is proposed, the syndrome differential diagnosis standard of "vessel-collateral-vascular system disease" is established, and the blood-vessel theory of TCM is improved. The development of Yingwei theory of vessel-collateral theory is deepened. The theory of Yingwei sympathia and Yingwei's "opening by collaterals, intersecting and generating" are proposed to guide the study on prevention and control of vascular lesions. With tertiary collaterals-microvessel as a breakthrough point of research, four types of microscopic pathological features of microvessels are proposed. It is confirmed that dredging collaterals and protecting tertiary collaterals-microvessel is the common key mechanism for the treatment of major diseases of heart, brain and kidney(sugar). It protects microvessels, improves blood flow perfusion, protects tissue cells, and improves the viscera function. Dredging collaterals and protecting microvascular endothelial cells is the core mechanism of treating tertiary collaterals-microvessel lesions. It is proposed that protection of microvascular endothelial cells is a new strategy to solve the problem of microvascular lesions. After more than ten years, four studies of evidence-based medicine have been completed to solve the clinical problem of acute myocardial infarction without reflow. New drugs are provided to the international medical problem of cardiac insufficiency with premature ventricular contraction. The gap of fast and slow treatment, integration and rhythm adjustment of sinus bradycardia with premature ventricular contraction is filled. The clinical treatment effect of chronic heart failure is significantly improved, a major breakthrough in the treatment of microvascular lesions by TCM is achieved, and it is fully recognized and highly evaluated by the medical profession at home and abroad. It promotes the specialized subject platform construction and society development under the guidance of Yingwei theory of vessel-collateral theory, as well as the clinical application of syndrome differentiation diagnosis and treatment method and drugs of vessel-collateral lesions, and has significant social and economic benefits.

Treatment Based on Syndrome Differentiation of Arrhythmia Guided by Yingwei Theory of Vessel-collateral Theory / 中国实验方剂学杂志

Meridians include (Qi) channels and blood (vessels). In Duyi Suibi, ZHOU Xue-hai of qing Dynasty named the terminal of Qi channel as"fine collateral of Qi" and the terminal of blood vessel as"fine collateral of blood". Qi channels of the heart cover extensive regulating mechanisms including cardiac pacing and conducting system. Blood vessels of the heart cover circulation system of coronary artery. Cardiac Qi channels and blood vessels are coordinated mutually, and Ying and Wei run together, to jointly maintain normal functions of the heart. Abnormal Yingwei caused by various pathogenic factors leads to occurrence of arrhythmia. Based on the Yingwei theory of vessel-collateral theory, this paper puts forward treatment based on syndrome differentiation of arrhythmia guided by therapeutic principle of"regulating Yingwei in case of heart damage" (Nanjing·14thNan) as well as addresses both symptoms and root causes by prescriptions for regulating Wei, Qi, Ying and blood through sufficiently considering modern pathogenic factors and pathogenic characteristics, in order to provide beneficial reference for clinical diagnosis and treatment.

Correlation between C-reactive Protein and Morphology of Aortic Intramural Hematoma on CT Angiography / 中国医学科学杂志(英文版)

Objectives To investigate the morphologic characteristics of intramural hematoma (IMH) on CT angiography (CTA), and evaluate the possible correlation of serum C-reactive protein (CRP) with morphologic characteristics of IMH. Material and Methods Forty-two patients who were initially diagnosed as IMH by aortic CTA and also had serum CRP examination on the same day of CTA were enrolled in this retrospective study, including 30 males and 12 females, with the mean age of 61 ± 14 years old. The volumetric CT data were retrospectively processed and analyzed on post-processing workstation. Based on the thickness of IMH and the length-area curve, the cross-sectional area of true lumen and total vessel were measured, the hematoma-vessel ratio (HVR) was calculated. Imaging characteristics were compared between patients who had pathological elevated CRP (> 0.8 mg/dl) and those did not. Spearman correlation analyses of CRP level and morphological characteristics of IMH were performed, and the receiver operating characteristic (ROC) curve was used to evaluate the diagnostic validity of CRP. Results Of all 42 IMH patients, the mean serum CRP was 3.94 ± 4.71 mg/dl, and the mean HVR was 46.7%± 14.2%. HVR in patients with elevated CRP was significantly higher than those with normal CRP (49.7% ± 15.0% vs. 40.7% ± 10.5 %, P = 0.030). HVR was mildly correlated with CRP in all patients (r =0.48, P < 0.001). CRP levels differed neither between patients with Stanford type A and B (P = 0.207), nor between patients with and without intimal disruption (P = 0.230). To discriminate HVR > 47% (the mean value), the area under curve (AUC) were 0.700 (95% CI: 0.535-0.865) for CRP at a cutoff point of 3.55 mg/dl, with a sensitivity of 54.5% and a specificity of 90.0%. Conclusion CRP was mildly correlated with the severity of cross-sectional hematoma area of IMH, but not with Stanford types and the presence of intimal disruption.

Caffeoyl quinic acids in Chrysanthemum morifolium improve LPS-induced HUVEC vascular endothelial cell injury by regulating ERK/MAPK signaling pathway / 药学学报

To explore the effect of total extract of Chrysanthemum morifolium on lipopolysaccharide (LPS)-induced acute lung injury in mice, we studied the effects of three caffeoyl quinic acids isolated from Chrysanthemum morifolium on vascular endothelial cell injury and their mechanisms of action. All animal experiments were carried out strictly in accordance with the National Animal Welfare Ethics and Protection Regulations. A mouse model of acute lung injury was established by intranasal instillation of LPS. After 6 days of oral administration of chrysanthemum extract, the lung wet weight/dry weight ratio, tumour necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) were measured in mouse bronchoalveolar lavage fluid. Human umbilical vein endothelial cells (HUVEC) were serum starved for 12 h and treated with 2.5 μg·mL-1 LPS for 24 h to establish the in vitro model of vascular endothelial cell injury. After 24 h of treatment of caffeoyl quinic acids from Chrysanthemum morifolium, the levels of TNF-α, IL-6, IL-1β, vascular cell adhesion molecule-1 (VCAM-1) and endothelin-1 (ET-1) were measured by ELISA in the cell culture supernatant, the malondialdehyde (MDA) level was detected by TBA method, the superoxide dismutase (SOD) level was determined by hydroxylamine method, and the nitric oxide (NO) level was assayed by a one-step method. The levels of p-MEK1/2, MEK1/2, p-ERK1/2, ERK1/2, p-JNK, JNK, p-P38 and P38 of mitogen-activated protein kinase (MAPK) signaling pathway were detected by Western blot. The total extract of Chrysanthemum morifolium can significantly reduce the wet weight/dry weight ratio of lung in mice and the levels of TNF-α, IL-6 and IL-1β in alveolar lavage fluid. The caffeoyl quinic acids from Chrysanthemum morifolium significantly increased the levels of SOD and NO, decreased the levels of TNF-α, IL-6, IL-1β, VCAM-1, ET-1 and MDA, and significantly reduced the levels of p-MEK1/2, p-ERK1/2. In conclusion, total extracts of Chrysanthemum morifolium exhibit certain protective effect on mice with acute lung injury, and three caffeoyl quinic acids from Chrysanthemum morifolium may improve LPS-induced vascular endothelial cell injury by inhibiting inflammatory cytokines and oxidative stress, and regulating inter-cellular adhesion molecule and vasomotor factors through ERK/MAPK signaling pathway.

Effects of polysaccharides from Ginkgo biloba on proliferation of 4T1 breast cancer cells and expression of GLUT family genes / 中国药理学通报

Aim To investigate the effects of polysac-charides from Ginkgo biloba on the proliferation, apop-tosis of mouse 4T1 breast cancer cells and the possible mechanism. Methods 4T1 cells in logarithmic growth phase were treated with polysaccharides from Ginkgo biloba of different concentrations. The effect of poly-saccharides from Ginkgo biloba on inhibition of prolif-eration and cytotoxicity of 4T1 cells was determined by MTT assay and trypan blue exclusion assay respective-ly. The apoptotic effect of polysaccharides from Ginkgo biloba on 4T1 cells was detected by DAPI staining. qRT-PCR experiments were carried out for the detec-tion of gene expressions of the glucose transporter fami-ly upon the treatment with the polysaccharides from Ginkgo biloba. Results Polysaccharides from either Ginkgo biloba leaf or Ginkgo biloba exocarp significant-ly inhibited the proliferation of 4T1 cells in a dose-and time-dependent manner. Moreover, with the increasing doses of polysaccharides, cell viability decreased, ac-companied by the increased cell cytotoxicity and apop-tosis. qRT-PCR results showed that polysaccharides from Ginkgo biloba significantly reduced glucose trans-porter 1 gene expression. Conclusions Polysaccha-rides from Ginkgo biloba can both inhibit 4T1 cell pro-liferation and induce cell apoptosis, and by regulating glucose transporter family gene expression, it interfered with cell energy metabolism, which infers that the effects of cell proliferation inhibition as well the apopto-sis induction might be due to the regulation of glucose transporter family gene expression.

Avian influenza viruses (AIVs) H9N2 are in the course of reassorting into novel AIVs / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

In 2013, two episodes of influenza emerged in China and caused worldwide concern. A new H7N9 avian influenza virus (AIV) first appeared in China on February 19, 2013. By August 31, 2013, the virus had spread to ten provinces and two metropolitan cities. Of 134 patients with H7N9 influenza, 45 died. From then on, epidemics emerged sporadically in China and resulted in several victims. On November 30, 2013, a 73-year-old woman presented with an influenza-like illness. She developed multiple organ failure and died 9 d after the onset of disease. A novel reassortant AIV, H10N8, was isolated from a tracheal aspirate specimen that was obtained from the patient 7 d after onset. This case was the first human case of influenza A subtype H10N8. On 4 February, 2014, another death due to H10N8 avian influenza was reported in Jiangxi Province, China.

Autophagy protects against histones-mediated extracellular apoptosis in proximal tubules / 实用医学杂志

Objective To investigate the effect of autophagy on histone-mediated apoptosis of human proximal tubular endothelial cells(HK-2).Methods To investigate the effect of histones on the autophagy and apoptosis,HK-2 cells were treated with increasing concentrations of histones.The rate of apoptosis and the expressions of autophagy-related protien LC3Ⅱ and Beclin1 in HK-2 cells were detected by using flow cytometry and immunoblotting assay,respectively.To further confirm the effect of autophagy on apoptosis of HK-2 cells,cells were incubated with histones after one hour pretreatment with 10 mmol/L 3-MA,a pharmacological inhibitor.The rate of apoptosis and the activity of caspase-3 of HK-2 cells were detected separately by using flow cytometry and immunoblotting assay.Results Histones significantly enhanced apoptosis of HK-2 cells in a dose-dependent manner,with the increased expressions of LC3Ⅱ and Beclin1.Blockage of autophagy by 3-MA significantly increased the apoptosis of HK-2 cells and the activity of caspase3.Conclusion Autophagy in proximal tubules protects against apoptosis induced by histones,with potential value in acute kidney injury (AKI).

Inhibitory effect of curcumin on Aβ1-42-induced cell damage and mitochondrial pathway apoptosis / 中国药理学与毒理学杂志

OBJECTIVE To investigate the protective effect of curcumin on Aβ1-42 damaged cells. METHODS SH-SY5Y cells were cultured with Aβ1-4210μmol · L-1 in the absence or presence of curcumin 1, 5 or 10 μmol · L-1. Cell viability was assayed by MTT. Cell membrane damage was detected by the concentration of lactate dehydrogenase (LDH) in culture medium. Cell apoptosis was measured by flow cytometry with Annexin Ⅴ-FITC/PI staining. Mitochondrial membrane potential was characterized by fluorescence of JC-1 dye. Enzymatic activity of caspases-9 and-3 was measured by colorimetric assay. Protein expression of caspase-3 was detected by Western blotting. RESULTS Compared with vehicle control, the cell viability, concentration of LDH and both early and late apoptosis in Aβ1-4210 μmol · L-1 damaged group were decreased(P<0.01). However, the cell viability, release of LDH and both early and late apoptosis in curcumin group were promoted compared with that in Aβ1-4210μmol·L-1 damaged group. Curcumin inhibited Aβ1-42-induced depolarization of mitochondrial membrane potential(P<0.01), and attenuated Aβ1-42-induced activation of both caspases9 and caspases3 in a concentration-dependent manner, respectively(r=0.990, P<0.01; r=0.996, P<0.01). There were no significant differences in the above detected indexes between curcumin 10 μmol · L-1 group and vehicle control group. CONCLUSION Curcumin inhibits Aβ1-42-induced cell damage and apoptosis by promoting mitochondrial membrane potential and depressing the activation of caspases.

New EMA real-time fluorescence PCR method for detection of alive Listeria monocytogenes in foods / 中国人兽共患病学报

A new EMA real-time fluorescence PCR method was developed to detect alive Listeria monocytogenes in foods.The specific primers and probe were designed based on the conserved inlA gene.The pretreatment conditions including EMA of different concentrations and irradiating times were optimized.The detection limit and inhibition rate to dead bacteria of this method were confirmed by using direct plating method.The detection specificity was evaluated by using 35 L.monocytogenes strains,25 non-L.monocytogenes strains and 92 non-Listeria strains.Simulation detection experiments were performed on 15 beverage samples and 15 cooked meat samples supplemented separately with inactivated L.monocytogenes,alive L.monocytogenes and Staphylococcus aureus.Results showed that the Ct of EMA real-time fluorescence PCR for alive L.monocytogenes was Ct=38.46-3.30 × log (R2=0.999).The detection limit was 55 cfu per reaction.Inhibition rate of DNA of inactivated strains was over 99.98％.The Ct of 35 L.monocytogenes strains were between 16.21 and 29.38,while 25 non-L.monocytogenes strains and 92 non-Listeria strains had Ct ＞35.The variation coefficient of CT was less than 5％ when the experiments were repeated.Results of 30 simulation samples were consistent with that by using standard method.The test time by using newly developed EMA real-time fluorescence PCR was shortened from 3-5 days to about 10 h.The newly developed EMA real-time fluorescence PCR method for alive L.monocytogenes is rapid,convenient,specific and sensitive and could be applyed in foods inspection.

Prognostic value of SCC-Ag for cervical cancer / 临床检验杂志

Objective To evaluate the prognostic significance of squamous cell carcinoma-associated antigen (SCC-Ag) in cervical cancer.Methods The databases of Pubmed,Embase,Science Direct and Cochrane Library were searched to collect all the literatures of the prognostic correlation of SCC-Ag for cervical cancer and evaluate the quality of the included literatures according to the evaluation criteria.Hazard ratio (HR) and 95％ confidence interval (CI) were used to evaluate the correlation between SCC-Ag and prognosis of cervical cancer,and the subgroup analysis was also performed.the forest map and funnel map were plotted out by StataSE12.0 software.Results A total of 14 articles met to inclusion criteria were included.The high expression of SCC-Ag correlated significantly with the poor overall survival,(OS) in prognosis of cervical cancer (HR =2.73,95％ CI =1.48-5.05,P =0.001).The disease free survival (DFS) of low expression of SCC-Ag was longer than that of high expression of SCC-Ag (HR =2.17,95％ CI =1.84-2.57,P ＜0.01).No correlation of high expression of SCC-Ag with progression-free survival (PFS) of the patients was found (HR =2.68,95％ CI =0.99-7.24,P =0.051).There was a significant heterogeneity of prospective OS (I2 =93.1％,P ＜0.01) in the subgroup analysis,but there was no statistical heterogeneity of prognostic DFS in the subgroup analysis (12 =23％,P =0.239).Conclusion SCC-Ag should be an important prognostic factor for cervical cancer.High expression of SCC-Ag may associate with poor prognosis of cervical cancer with statistical significance.

Rutaecarpine protects against myocardial ischemia / reperfusion injury through inhibiting Toll-like receptor 4 / NF-κB signaling pathway in rats / 中国药理学通报

Aim To investigate whether the protection of rutaecarpine against myocardial ischemia / reperfusion (I/ R ) injury is mediated by Toll-like receptor 4 (TLR4)/ NF-κB pathway,and whether these effects are related to the release of calcitonin gene-related peptide(CGRP)in plasma. Methods Sprague-Daw-ley rats were subjected to 60 min of ligation of the left anterior descending coronary followed by 3h of reperfu-sion to induce I/ R injury. Rats were pretreated with rutaecarpine 10 min before the ligation,and some rats were pretreated with capsazepine 2 min before rutae-carpine administration. Myocardial infarct size,CGRP concentration in plasma and creatine kinase (CK)ac-tivity in serum were measured. The expression of TLR4 mRNA in myocardial tissue was determined by RT-PCR. The protein expression of TLR4 and NF-κB in myocardial tissue was analyzed by immunohistochemis-try. Results Rutaecarpine (100,300 μg · kg - 1 , iv)significantly reduced the infarct size and the serum CK activity concomitantly with the increase in plasma CGRP concentration (P < 0. 05). Importantly,the ex-pression of TLR4 (both mRNA and protein)and NF-κB (protein)was increased by myocardial I/ R injury, and dramatically inhibited by rutaecarpine pretreatment (P < 0. 05). All these effects of rutaecarpine were a-bolished by capsazepine (1. 5 mg·kg - 1 ,iv),a spe-cific antagonist for vanilloid receptor-1. Conclusion Rutaecarpine protects against myocardial I/ R injury by inhibiting TLR4 / NF-κB pathway,which is related to the increased release of CGRP.