Adolescent ; Adult ; Cyclophosphamide ; adverse effects ; Female ; Femur Head Necrosis ; etiology ; Humans ; Immunosuppressive Agents ; adverse effects ; Male ; Middle Aged ; Paraquat ; poisoning ; Young Adult

Diagnosis, Differential ; Female ; Humans ; Infant, Newborn ; Nasopharyngeal Neoplasms ; pathology ; surgery ; Polyps ; pathology ; surgery ; Teratoma ; pathology

Objective To investigate the immunomodulatory effects and the mechanism of interferon (IFN)-γ-pretreated adult autologous adipose tissue-derived mesenchymal stem cells (ADSCs) on peripheral blood lymphocytes. Methods ADSCs were obtained from adult subcutaneous adipose tissues. IFN-γ with and without pretreated ADSCs were used as IFN-γ-pretreated group and IFN-γ-unpretreated group, which were cultured with autologous peripheral blood mononuclear cells (PBMCs) at different concentrations of ADSCs-to-PBMCs ratios in presence of concomitant phytohemagglutinin (PHA)/interleukin (IL)-2 stimulation. After 5 days of culture, the proliferatory inhibitory rate of activated T cells, the percentage of CD4+CD25+ regulatory T cells (Treg), and the expression of indoleamine 2,3-dioxygenase (IDO) mRNA were assessed. Results ADSCs were isolated from autologous adipose tissue, which strongly expressed CD73, CD90, and CD105, as well as displayed adipogenic and osteogenic differentiation. The percentage of CD4+CD25+Treg was significantly higher in IFN-γ-pretreated group than that of IFN-γ-unpretreated group. The expression level of IDO mRNA in ADSCs was significantly increased in IFN-γ-pretreated group than that of IFN-γ-unpretreated group. The proliferation inhibition of activated T cells was significantly decreased in IDO-blocker group than that of IFN-γ-pretreated group (P < 0.01). Conclusion These results suggest that IFN-γ can promote immunosuppressive effects of ADSCs on activated T cells through increased expression of IDO.

OBJECTIVEIn order to improve the irrigation for Panax notginseng growing seedlings, different mulching ways were carried out to investigate the effects of double mulching.

METHODField experiment was applied to study soil moisture, soil temperature and bulk density of different mulching ways while the germination rate and seedlings growth also were investigated.

RESULTCompared with the traditional single mulching with pine leaves or straw, double mulching using plastic film combined with pine leaves or straw could reduce 2/3 volumes of irrigation at the early seedling time Double mulching treatments didn't need to irrigate for 40 days from seeding to germination, and kept soil moisture and temperature steady at whole seedling time about 30% and 9.0-16.6 degrees C, respectively. The steady soil moisture and temperature benefited to resist late spring cold and germinate earlier while kept germination regularly, higher rate and seedlings quality. In contrast, single mulching using pine leaves or straw had poor soil moisture and temperature preserving, needed to irrigate every 12-day, meanwhile dropped the germination and booming time 14 days and 24-26 days, respectively, reduced germination rate about 11.3%-8.7%. However, single pine leaves mulching was better than straw mulching. In addition, though better effects of soil moisture and temperature preserving as well as earlier and higher rate of germination with single plastic films mulching had, some disadvantages had also been observed, such as daily soil temperature changed greatly, seedling bed soil hardened easily, more moss and weeds resulted difficulty in later management.

CONCLUSIONTo the purpose of saving water and labor as well as getting higher germination rate and seedlings quality, double mulching using plastic films combined pine leaves at the early time and single mulching removing plastic films at the later time is suggested to apply in the growing seedlings of P. notoginseng.

Agriculture ; methods ; China ; Drugs, Chinese Herbal ; analysis ; Fertilizers ; analysis ; Panax notoginseng ; chemistry ; growth & development ; Quality Control ; Seedlings ; chemistry ; growth & development ; Soil ; chemistry

Animals ; Cold Temperature ; adverse effects ; Heart ; physiopathology ; Inflammation ; physiopathology ; Myocardium ; metabolism ; Oxidative Stress ; Particulate Matter ; adverse effects ; Rats

Cold Temperature ; Dinoprost ; analogs & derivatives ; urine ; Dust ; Humans ; Interleukin-6 ; urine ; Thromboxane B2 ; analogs & derivatives ; urine ; Weather

Brain magnetic resonance imaging (MRI) of the elderly often reveals white matter changes (WMCs) with substantial variability across individuals.Our study was designed to explore MRI features and site-specific factors of ischemic WMCs.Clinical data of consecutive patients diagnosed with ischemic cerebral vascular disease who had undergone brain MRI were collected and analyzed.Multi-logistic regression analysis comparing patients with mild versus severe WMCs was performed to detect independent associations.Analyses of variance (ANOVAs) were used to detect regionally specific differences in lesions.We found that lesion distribution differed significantly across five cerebral areas,with lesions being predominant in the frontal lobe and parieto-occipital area.To explore WMCs risk factors,after adjusting for gender,diabetes mellitus,and hypertension,only age (P＜0.01),creatinine (P=0.01),alkaline phosphatase (ALP) (P=0.01) and low-density lipoprotein cholesterol (LDL-C) (P=0.03) were found to be independently associated with severe WMCs.Age (P＜0.001) was strongly associated with WMCs in the frontal lobe while hypertension was independently related to lesions in the basal ganglia (P=0.048) or infratentorial area (P=0.016).In conclusion,MRI of WMCs showed that ischemic WMCs occurred mostly in the frontal lobe and parieto-occipital area.The infratentorial area was least affected by WMCs.Typically,age-related WMCs were observed in the frontal lobes,while hypertension-related WMCs tended to occur in the basal ganglia and infratentorial area.

The "Medium and Long-term Plan for the Prevention and Control of Chronic Non-communicable Diseases in Shanghai (2018-2030)" was officially released in August 2018.From the perspective of public health, this paper analyzes the background of the plan from the epidemic situation, response and challenges Shanghai City is facing, expounds the comprehensive prevention and control system of chronic diseases including four functional systems, and explains the key preventive and control measures on the different stages of chronic diseases, comparing the evaluation indicators with those of the national plan.This paper will help to better understand the new blueprint for the prevention and control of chronic diseases in Shanghai in the next ten years.

To combine the fibrinolytic with anticoagulant activities for therapy of thrombotic deseases, a fusion protein made of tissue-type plasminogen activator (t-PA) and hirudin was constructed and expressed in chia pastoris. To improve thrombolytic properties of t-PA and reduce bleeding side effect of hirudin, FXa-recognition sequence was introduced between t-PA and hirudin molecules.The anticoagulant activity of hirudin can be target-released through cleavage of FXa at thrombus site. t-PA gene and hirudin gene with FXa-recognition sequence at its 5'-terminal were obtained by RT-PCR and PCR respectively. The fusion protein gene was cloned into plasmid pIC9K and electroporated into the genome of Pichia pastoris GS115. The expression of fusion protein was induced by methanol in shaking flask and secreted into the culture medium. Two forms of the fusion protein, single-chain and double-chain linked by a disulfide bond (due to the cleveage of t-PA at Arg275-Ile276), were obtained. The intact fusion protein retained the fibrinolytic activity but lacked any anticoagulant activity. After cleavage by FXa, the fusion protein liberated intact free hirudin to exert its anticoagulant activity. So, the fusion protein is a bifunctional molecule having good prospect to develop into a new targeted therapeutic agent with reduced bleeding side effect for thrombotic diseases.
Animals ; Cloning, Molecular ; Electroporation ; Hirudins ; biosynthesis ; genetics ; Humans ; Pichia ; genetics ; metabolism ; Recombinant Fusion Proteins ; biosynthesis ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Tissue Plasminogen Activator ; biosynthesis ; genetics

China ; Humans ; Rabies ; epidemiology ; prevention & control