Objective To explore the appropriate nursing care of acute hyperlipidemic pancreatitis and increase nursing level.Methods The clinical data of 3 cases of hyperlipidemic pancreatitis misdiagnosed as acute appendicitis were analyzed retrospectively and the nursing experience was summarized.Results The blood sample of all 3 cases represented dramatically high level of serum triglyceride (14.1～61.0 mmol/L).Obvious inducing factors were observed in one case.Besides upper abdominal symptom and physical sign continued in spite of the right lower abdominal discomfort,ascites was discovered by early B-ultrasound.There was no significant increase of serum or urine amylase.After correct diagnosis,all of the 3 cases recovered well by close observation,mental nursing,anti-hyperlipidemic nursing,drainage nursing and health education.Conclusions The knowledge of hyperlipidemic pancreatitis should be well understood during nursing practice.Comprehensive nursing evaluation and close observation can help doctors to analyze and estimate the disease.Integrated nursing techniques can accelerate the recovery of the patients.Health education,anti-hyperlipidemic therapy,and removal of the inducing factors are the keys of prevention.

Objective To investigate the diagnostic and prognostic value of serum exosomal exocirc_0023461 in coronary artery disease(CAD)related acute myocardial infarction(AMI).Methods From December 2019 to January 2022,383 patients with CAD related AMI(AMI group),200 pa-tients with chronic stable CAD but no AMI(control group),and 200 healthy individuals identified with physical examination(healthy group)were recruited in our hospital.The serum exocirc_0023461 level was determined by real-time quantitative fluorescence polymerase chain reaction.The correlation of serum exosomal circ_0023461 level with clinicopathological features and oxida-tive stress indicators was analyzed.Results The serum level of exocirc_0023461 was significantly higher in the AMI group than the control group and healthy group[3.54(1.39,9.82)vs 0.86(0.62,1.23)and 0.65(0.41,0.79),P＜0.01].ROC curve analysis showed that when the serum level of exocirc_0023461 ≥1.31,its AUC value for the diagnosis of AMI was 0.857(95％CI:0.827-0.887),with a sensitivity and specificity of 78.90％and 83.50％,respectively.Kaplan-Meier survival curve displayed that the survival time was significantly shorter in the high level AMI patients without MACE than those with low level(X2=19.390,Plog rank＜0.01).Multivariate Cox regression analysis revealed that age,peripheral artery disease and serum exocirc_0023461 were independent predictors of MACE occurrence in AMI patients during follow-up(P＜0.05,P＜0.01).Pearson correlation analysis indicated that serum exocirc_0023461 level was negatively correlated with serum GPX and SOD levels(r=-0.395,r=-0.193,P＜0.01),and positively correlated with serum MDA level(r=0.194,P＜0.01).Conclusion Serum exocirc_0023461 may be a potential biomarker for the diagnosis and prognosis of CAD-related AMI,and its mechanism seems to be associated with its regulating oxidative stress and thus affecting myocardial injury.

OBJECTIVETo develop animal models and methodologies for assay of pseudoallergy induced by injectable drugs.

METHODRats cutaneous anaphylactoid reaction model was developed by intravenous injection of 0. 6% Evans blue(EB) followed by intracutaneous injection of test substance solutions 50 microL. Diameters of subcutaneous blue spots and EB exudation were assayed.

RESULTRat anaphylactoid reaction was characterized as vascular hyperpermeability which was measured by diameters of blue spots inside the skin and the EB exudation of the blue spots. Compound 48/80 caused severe bluing and EB exudation in the skin by inducing obvious vascular hyperpermeability which indicated that it can induce rat skin pseudoallergy. Normal saline or 5% glucose injection showed no obvious reactions. The rat pseudoallergy model was validated by intracutaneous injections of western drug injections and Chinese medicine.

CONCLUSIONRats could be developed into skin pseudoallergy model for preclinical safety evaluation of injectable drugs. The pseudoallergy reaction in this model is of high clinic consistency, sensitivity, reproducibility, and maneuverability. The model is suitable for the evaluation for pseudoallergy induced by injectable products prepared from Chinese materia medica This model can also be used for safety assay and quality control in manufacturing process, spot checking of marketed products, screening of allergen as well as studying of pseudoallergy mechanism.

Animals ; Disease Models, Animal ; Drug Evaluation, Preclinical ; methods ; Drug Hypersensitivity ; Female ; Injections, Subcutaneous ; methods ; Male ; Rats ; Rats, Sprague-Dawley ; Skin ; drug effects

OBJECTIVETo develop animal models and methodologies for assay of pseudoallergy induced by injectable drugs.

METHODMouse anaphylactoid reaction model was developed by intravenous injection of test substance solutions containing Evans blue (EB). Scores of ear blue staining and quantitation of ear EB exudation were the parameters for the pseudoallergy reaction.

RESULTMouse anaphylactoid reaction was characterized as vascular hyperpermeability which was detectable in ears by quantitation of blue staining score and EB exudation. Compound 48/80 and histamine caused severe ear bluing and EB exudation by inducing obvious vascular hyperpermeability which indicated that they can induce mouse pseudoallergy. Intravenous injection of either normal saline or 5% glucose injection showed no ear bluing. The mouse pseudoallergy model was validated by intravenous injections of western drugs and Chinese medicine.

CONCLUSIONMice could be developed into pseudoallergy model for preclinical safety evaluation of injectable drugs. The pseudoallergy reaction in this model is of high clinic consistency, sensitivity, reproducibility, and maneuverability. The model is suitable for the evaluation for pseudoallergy induced by injectable products prepared from Chinese materia medica This model can also be used for safety assay and quality control in manufacturing process, spot checking of marketed products, screening of allergen as well as studying of pseudoallergy mechanism.

Animals ; Disease Models, Animal ; Drug Evaluation, Preclinical ; methods ; Drug Hypersensitivity ; Injections, Intravenous ; Mice ; Mice, Inbred ICR

Parkin, an E3 ubiquitin ligase, plays a role in maintaining mitochondrial homeostasis through targeting damaged mitochondria for mitophagy. Accumulating evidence suggests that the acetylation modification of the key mitophagy machinery influences mitophagy level, but the underlying mechanism is poorly understood. Here, our study demonstrated that inhibition of histone deacetylase (HDAC) by treatment of HDACis activates mitophagy through mediating Parkin acetylation, leading to inhibition of cervical cancer cell proliferation. Bioinformatics analysis shows that Parkin expression is inversely correlated with HDAC2 expression in human cervical cancer, indicating the low acetylation level of Parkin. Using mass spectrometry, Parkin is identified to interact with two upstream molecules, acetylase acetyl-CoA acetyltransferase 1 (ACAT1) and deacetylase HDAC2. Under treatment of suberoylanilide hydroxamic acid (SAHA), Parkin is acetylated at lysine residues 129, 220 and 349, located in different domains of Parkin protein. In in vitro experiments, combined mutation of Parkin largely attenuate the interaction of Parkin with PTEN induced putative kinase 1 (PINK1) and the function of Parkin in mitophagy induction and tumor suppression. In tumor xenografts, the expression of mutant Parkin impairs the tumor suppressive effect of Parkin and decreases the anticancer activity of SAHA. Our results reveal an acetylation-dependent regulatory mechanism governing Parkin in mitophagy and cervical carcinogenesis, which offers a new mitophagy modulation strategy for cancer therapy.