1.The role of PPARγin Alzheimer′s disease and its impact factors
Journal of Medical Postgraduates 2015;(9):989-994
Alzheimer′s disease ( AD) , is a neurodegenerative disorder of the brain that is characterized by loss of memory and cognitive decline.At present, AD etiology remains unclear and there are no effective prevention and treatment measures in clinical practice.Peroxisome proliferator-activated receptorγ( PPARγ) is a ligand-regulated nuclear hormone receptor.Recent studies showed PPARγ-pathway played an important role in the pathogenesis of AD and some PPARγagonists have been proven to be neuroprotective in vitro and in vivo models.This paper reviews the roles of PPARγand related mechanisms in AD, summarizes affecting factors about PPARγpathway.Particularly, the effect of cyanidin-3-O-glucoside ( Cy3G) , one of the anthocyanidin glycoside forms, is a compound of naturally occurring phenolic compounds, suggesting the neuroprotective effect of Cy3G might be used as a potential natural PPARγagonist in the nervous system.
2.Postoperative observation and nursing of hip developmental dislocation in infants with Ferguson operation
Modern Clinical Nursing 2013;(7):33-34,35
Objective To explore the clinical nursing of hip developmental dislocation in infants with Ferguson operation.Method The nursing strategy was performed including observation of the surgical incision,skin care,care of cast and instructions to their parents. Result No pressure sores occurred in all the 34 cases of hip developmental dislocation.1 case had delayed allergy reaction because of use of contrast media during operation,1 cast syndrome,and 19 edema of perineum of different degrees including 6 severe edemata,which were cured using wet compress with Adlerika.Conclusion It is of great importance for the reduced incurrence of operation complications and promising operative effect to observe the conditions and treat timely problems in postoperative nursing.
3.Analysis of death cause in rats with spinal cord injury
Guoxin NAN ; Jiaqiang QIN ; Weihong LIAO
Chinese Journal of Trauma 2010;26(11):1040-1042
Objective To investigate the causes for death in rats after spinal cord injury.Methods A total of 120 adult Wister rats were selected for the study. The animal model with acute spinal injury at T10 was established by using Allen' s combat (25 g · cm). The dissection analysis was performed in death rats. Results Of all, 25 patients died, with mortality rate of 21%. Of death rats, five rats were died before awakening, with no abnormal anatomy; 12 rats died within three days after injury and three died of injuries 3-7days injury. Anatomy found pulmonary bleeding and edema, even hematocele bladder in some rats. There were three rats died within 1-2 weeks, one died of injury only after 2-3 weeks, with lung infection and urinary tract infection. There was no death after three weeks. Conclusions The early causes for death of rats with spinal cord injury is mainly due to lung congestion and pulmonary edema, whereas the leading cause of late death of rats is pulmonary and urinary tract infection.
4.Death of a child with AIDS.
Chinese Journal of Pediatrics 2003;41(6):421-421
Acquired Immunodeficiency Syndrome
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blood
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complications
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diagnosis
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Antibodies, Viral
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blood
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Child
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Cough
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complications
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Fatal Outcome
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Fever
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complications
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HIV-1
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immunology
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Humans
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Male
5.Nursing of proximal femoral fracture in pediatric patients with congenital insensitivity to pain and anhidrosis
Qian QIN ; Nan WANG ; Pengfei GAO
Modern Clinical Nursing 2017;16(1):17-19
Objective To summarize the experience in pediatric nursing of children with congenital insensitivity to pain and anhidrosis (CIPA) combined with proximal femoral fracture.Methods Two CIPA children with proximal femoral fracture received good treatment of security,plaster casts/braces,body temperature and skin as well as guidance of function exercise and health care education.The nursing experience was summarized.Result After intensive nursing,all patients successfully tided over their perioperative period and discharged.Conclusions The security management,careful observation of skin and body temperature after plaster casts/braces fixation,are of great significance for the decreased complication.Function exercises are equally effective in CIPA children with proximal femoral fracture.
6.Immediate effects of three different regimens in advanced colorectal cancers
Haixia QIN ; Kejun NAN ; Guan YANG
China Oncology 2001;0(03):-
0.05).Conclusions:There was no difference in terms of both effect and toxicity among the three regimens. All of them were effective and could be well tolerated by advanced colorectal cancer patients.
7.Expression of silence information regulator 1 (Sirt1) in B cells in peripheral venous blood of subacute cutaneous lupus erythematosus
Nan HU ; Qing LI ; Zhiping XIAO ; Qin QIN ; Cuie KUANG
Journal of Chinese Physician 2015;17(12):1836-1838
Objective To investigate alterations in epigenetic regulation in B cells in subacute cutaneous lupus erythematosus (SCLE).Methods Peripheral blood mononuclear cells (PBMC) were isolated from the peripheral venous blood of SCLE patients and healthy donors with density gradient centrifugation.B cells were isolated with CD19 micro beads and protocols provided by the manufacturer.Total RNAs were isolated with RNA kits.The expressions of silence information regulator 1 (Sirt1) mRNA were investigated with quantitative real time polymerase chain reaction (PCR).Results The levels of Sirt1 mRNA were significantly increased in SCLE B cells relative to healthy controls (P < 0.01).Conclusions Histone modifications appear abnormal in B cells in SCLE.
8. Regulation and mechanism of corylin on inflammasomes
Chinese Pharmacological Bulletin 2019;35(3):364-370
Aim: To investigate the regulation effect and molecular mechanism of corylin on NLRP3, NL-RC4, AIM2 inflammasomes with immortalized bone marrow-derived macrophages. Methods: The effect of corylin on the NLRP3, NLRC4, AIM2 inflammasome activation was evaluated with LPS-induced ATP, nigericin, salmonella, poly(dA: dT). Caspase-1 activity was determined by Caspase-Glo® 1 Inflammasome Assay. Western blot was performed to observe the protein expression levels of mature IL-1β, caspase-1 p20 in the culture supernatants, pro-caspase-1, pro-IL-1β, ASC, NLRP3 in the cell lysates. Results: Corylin blocked the self-slicing of pro-caspase-1 induced by ATP, nigericin, salmonella and poly(dA: dT), then suppressed the secretion of mature IL-1β mediated by caspase-1, which showed that corylin inhibited the NL-RP3, NLRC4, AIM2 inflammasomes activation. Moreover, corylin irreversibly attenuated the activation of NLRP3 inflammasome without affecting NF-κB signaling pathway. Conclusions: Corylin inhibits the inflammasome activation of NLRP3, NLRC4, and AIM2, and further reduces its mediated immune inflammatory response. Meanwhile, it provides new ideas and strategies for the treatment of immune inflammatory diseases by using corylin-related preparations.
9.Distribution of peroxisome proliferator-activated receptor γ in ocular tissues of rodent animal
Junfang, ZHANG ; Bai, QIN ; Nan, HU ; Huaijin, GUAN
Chinese Journal of Experimental Ophthalmology 2014;32(1):41-45
Background Peroxisome proliferator-activated receptor gamma (PPARγ) is one of nuclear transcription factors.It plays potential anti-inflammation,anti-fibrogenesis,anti-angiogenesis and neuroprotection roles in human.So the study of its physiological and pathological function in human and animals is still a focus.To understand the distribution of PPARγ in ocular tissues is important for the target treatment of eye diseases.Objective Current study was to investigate the expression of PPARγ in different parts of eye in rodent.Methods Cornea,lens,ciliary,retina and optical nerve were isolated from 6 SPF C57BL/6J mice and 1 SD rat.Western blot assay was used to detect the expressions of PPARγprotein in cornea,lens and retina.Immunohistochemistry was used to locate the distribution of PPARγ protein in cornea,lens,ciliary,retina and optical nerve.Also,the co-expression of PPARγ with glutamine synthetase (GS) (a Müller cell specific marker) and glial fibrillary acidic protein (GFAP)(an astrocyte specific marker) in retina and optic nerve was detected by immunofluorescent double staining.Results Western blot assay showed that PPARγ was expressed in the cornea,lens and retina of the mice.Immunohistochemistry revealed that PPARγ mainly located at corneal epithelium with the strongest staining in the basal cells,but only weak staining was seen in corneal endothelial cells and stroma cells.PPARγ was strongly expressed in epithelial cells and shallow cortex layer of mouse lens.In mouse retina,PPARγ was extensively and richly expressed in retinal ganglion cell layer,inner and outer plexiform layers and inner nuclear layer.In addition,PPARγ was also expressed in the non-pigmented epithelial cells in ciliary body.The co-locations of PPARγexpression with GS in retinal tissue and PPARγ expression with GFAP in optical nerve tissue were found in the mice.Conclusions PPARγis proved to distribute extensively in different ocular tissues.These results offer basis for the target treatment of relevant eye diseases.
10.Protective effects of propofol on cultured rat hippocampal neurons against anoxia-induced injury
Xiaohui QIN ; Wei-Dong MI ; Hong ZHANG ; Nan LI ;
Chinese Journal of Anesthesiology 1995;0(02):-
Objective To determine if propofol can protect cultured rat hippocampal neurons from anoxia-induced injury and elucidate the underlying mechanism.Methods Neonatal Wistar rats were decapitated. Hippocampus was isolated, minced and digested with 0.125 % trypsin at 371 for 25 min, then centrifuged at 1000 r/min for 5 min. The supernatant was discartled and the precipitate was resuspended in growth medium. The cell suspension was incubated at 37 ℃ for 10 days. The cultured hippocampal neurons were randomly divided into 3 groups: control group(group C) ,anoxia group(group A), propofol + anoxia group (group PA) . Group PA was further divided into 3 subgroups of different end-propofol concentrations:3, 12,48 mg?L-1 . The cultured neurons were transferred to low glucose medium and incubated at 37 ℃ in closed incubator filled with anoxic atmosphere (95% N2-5% CO2) for 24 h in group A and group PA (following addition of propofol) . The cell survival rate in each group was measured by MIT colorimetry. The real-time changes in [Ca2+ ]i in cultured hippocampal neurons induced by anoxia or glutamate or KCL were measured by fluorescence and laser scan confocal microscopy ( LSCM) after staining with fluo-3/AM.Results The hippocampal neurons developed acute swelling and widespread degeneration following anoxia. Propofol attenuated the neuronal injury at 12 and 48 mg?L-1 in a dose-dependent manner and significantly increased the cell survival rate following anoxia (P