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1.
Article in Chinese | WPRIM | ID: wpr-909008

ABSTRACT

Causes analysis of death is the most common work in forensic pathology practice. When designing problem-based learning (PBL) teaching objectives, we should take cause analysis of death as the main line and give consideration to other related issues. The selected cases should be typical ones that solve the target problems, which can fully reflect the basic theoretical knowledge of forensic pathology, and have moderate difficulty, delights and clear conclusions. The PBL course is divided into three steps. The first step focuses on providing students with case information to guide them to find out the problems that need to be solved. The second step focuses on discussing the problems and making pathological diagnoses. The third step focuses on answering the question raised at the beginning of the course. Each lesson can also be divided into several sections by which the lesson plans should be prepared. In the teaching process, performing active interaction with students, controlling the direction of classroom development, balancing student opportunities should be done well in order to make the curriculum smoothly and achieve the purpose of teaching.

2.
Chinese Journal of Geriatrics ; (12): 418-423, 2020.
Article in Chinese | WPRIM | ID: wpr-869398

ABSTRACT

Objective:To investigate the safety and efficacy of sacral neuromodulation(SNM)therapy for the treatment of lower urinary tract dysfunction(LUTD)in elderly patients.Methods:Clinical data of 91 elderly patients with LUTD from multiple medical institutions who received SNM during the period from January 2012 to December 2016 were retrospectively analyzed.Patients were divided into four groups: the interstitial cystitis(IC)group(n=28), the neurogenic bladder(NB)group(n=36), the overactive bladder syndrome(OAB)group(n=13)and the idiopathic dysuria(ID)group(n=14). Different sets of evaluation parameters were used for different diseases.Patients’ baseline data and data in stage I(test phase)and stage Ⅱ(permanent SNM)were recorded, statistically analyzed and compared.Results:Ninety-one people underwent SNM treatment.Of them, 53 patients received permanent implants(stage Ⅱ), and the total conversion rate of stage I to stage Ⅱ was 58.2%(53/91). Patients receiving permanent implants(stage Ⅱ)had a preoperative period ranging from 3 months to 30 years, and were followed up for 2 to 58 months after treatment, with an average follow-up of 19.6 months.The improvement rates in stage I for urinary urgency, daily urination frequency, daily nocturnal urination frequency, maximum urine volume, daily average urine volume, daily urine leakage frequency, and quality of life score were 35.4%, 31.6%, 33.7%, 32.6%, 49.2%, 43.2% and 13.2%, respectively.The improvement rates in stage Ⅱ for urinary urgency, daily urination frequency, daily nocturnal urination frequency, maximum urine volume, daily average urine volume, daily urine leakage frequency, and quality of life score were 43.2%, 40.0%, 37.8%, 50.5%, 70.5%, 70.4% and 43.2%, respectively.Three adverse events occurred, including 1 case of recurrent symptoms, 1 case of moderate infection, and 1 case of electrical lead dislocation.Conclusions:Sacral nerve stimulation has definitive and consistent curative effects on LUTD in elderly people.The follow-up time should be extended to further study the safety of sacral nerve stimulation.

3.
China Pharmacy ; (12): 2597-2602, 2020.
Article in Chinese | WPRIM | ID: wpr-829594

ABSTRACT

OBJECTIVE:To study the effects of gin seng root extract on autophagy ,proliferation and cytokine of splenic lymphocyte of mice ,and to study its mechanism. METHODS :The splenic lymphocyte of mice were divided into blank control group,positive control group (concanavalin A ,5 μg/mL),different concentration of ginseng root extract groups (32,125,500 μg/mL,by lyophilized powder ). After 48 h of culture with the corresponding medicine ,acridine orange staining method was used to detect autophagy of splenic lymphocyte ;CCK-8 assay was used to detect the cell proliferation ;ELISA assay was used to determine the levels of IL- 4,IL-6 and TNF-α in cell culture;Western blotting method was used to detect the expression of LC 3B and Beclin- 1,as well as the phosphorylation of AMPK ,AKT and mTOR. RESULTS :Compared with blank control group ,32, 125,500 μg/mL ginseng root extract could increase the number of acidic autophagosomes in splenic lymphocytes of mice(P<0.05 or P<0.01);125,500 μg/mL Ginseng root extract could significantly enhance the survival rate of splenic lymphocytes,the levels of IL- 4,IL-6 and TNF-α and the transformation of LC3BⅠ to LC 3BⅡ,significantly increased the protein expression of Beclin- 1, quinacrine cationic liposomes for treating non-small cell @163.com lung cancer[J]. J Drug Target ,2015,23(3):232-243. the phosphorylation of AMPK protein ,and significantly reduced the phosphorylation level of AKT and mTOR proteins ,with statistical significance (P<0.05 or P<0.01). CONCLUSIONS :Ginseng root extract can induce autophagy of mice splenic lymphocytes,activate the activity of splenic lymphocytes ,regulate the secretion of cytokine by activating AMPK and inhibiting the activation of AKT which can inhibit the activity of mTOR ,so as to exert immune enhancement effect.

4.
Chinese Journal of Geriatrics ; (12): 582-585, 2019.
Article in Chinese | WPRIM | ID: wpr-745563

ABSTRACT

Objective To investigate an initial therapeutic effect and safety of an implantation of artificial urinary sphincter(AUS)for treatment of male incontinence.Methods Clinical data of 5 male patients hospitalized in our center from November 2013 to November 2017 and treated with AUS were retrospectively analyzed.The usage of pads and the improvement of relevant score were compared before and after operation.Results The 5 males had incontinence secondary to post-prostatectomy,aged 71-78 years with an average of 75.4 years.All AUS devices were successfully activated and manipulated.After implantation,patients were followed up for a mean of 28.4 months.A social continence was got in four cases,a totally dry in one case.Complications occurred in 2 cases:1 case had mechanical failure and reached the standard of social urine control after replacing devices;another case had an unknown cause.Conclusions AUS implantation is a safe and effective treatment for male patients with the moderate to severe urinary incontinence.

5.
Article in Chinese | WPRIM | ID: wpr-670393

ABSTRACT

Panax ginseng is a precious medicinal herb both in China and abroad with high medicinal and economic value.Ginseng disease has been recognized as the main factor restricting its application.Modern molecular biology for the disease resistance of ginseng promoted the development of new methods.In this study,it was found that the antimicrobial proteins of ginseng involved lipid transfer protein,cyclophilin,defensins,PR-4 and PR-10,showing inhibitory effects on various pathogens.These findings provided a reference for the control of ginseng diseases.

6.
Article in English | WPRIM | ID: wpr-316848

ABSTRACT

<p><b>OBJECTIVE</b>To study the biomechanical mechanism of head injuries beaten with sticks, which is common in the battery or assaultive cases.</p><p><b>METHODS</b>In this study, the Hybrid-III anthropomorphic test device and finite element model (FEM) of the total human model for safety (THUMS) head were used to determine the biomechanical response of head while being beaten with different sticks. Total eight Hybrid-III tests and four finite element simulations were conducted. The contact force, resultant acceleration of head center of gravity, intracranial pressure and von Mises stress were calculated to determine the different biomechanical behavior of head with beaten by different sticks.</p><p><b>RESULTS</b>In Hybrid-III tests, the stick in each group demonstrated the similar kinematic behavior under the same loading condition. The peak values of the resultant acceleration for thick iron stick group, thin iron stick group, thick wooden stick group and thin wooden stick group were 203.4 g, 221.1 g, 170.5 g and 122.2 g respectively. In finite element simulations, positive intracranial pressure was initially observed in the frontal comparing with negative intracranial pressure in the contra-coup site. Subsequently the intracranial pressure in the coup site was decreasing toward negative value while the contra-coup intracranial pressure increasing toward positive values.</p><p><b>CONCLUSIONS</b>The results illustrated that the stiffer and larger the stick was, the higher the von Mises stress, contact force and intracranial pressure were. We believed that the results in the Hybrid-III tests and THUMS head simulations for brain injury beaten with sticks could be reliable and useful for better understanding the injury mechanism.</p>


Subject(s)
Biomechanical Phenomena , Brain Injuries , Finite Element Analysis , Humans , Intracranial Pressure , Manikins
7.
Protein & Cell ; (12): 518-531, 2014.
Article in English | WPRIM | ID: wpr-757480

ABSTRACT

Cells sense various in vivo mechanical stimuli, which initiate downstream signaling to mechanical forces. While a body of evidences is presented on the impact of limited mechanical regulators in past decades, the mechanisms how biomechanical responses globally affect cell function need to be addressed. Complexity and diversity of in vivo mechanical clues present distinct patterns of shear flow, tensile stretch, or mechanical compression with various parametric combination of its magnitude, duration, or frequency. Thus, it is required to understand, from the viewpoint of mechanobiology, what mechanical features of cells are, why mechanical properties are different among distinct cell types, and how forces are transduced to downstream biochemical signals. Meanwhile, those in vitro isolated mechanical stimuli are usually coupled together in vivo, suggesting that the different factors that are in effect individually could be canceled out or orchestrated with each other. Evidently, omics analysis, a powerful tool in the field of system biology, is advantageous to combine with mechanobiology and then to map the full-set of mechanically sensitive proteins and transcripts encoded by its genome. This new emerging field, namely mechanomics, makes it possible to elucidate the global responses under systematically-varied mechanical stimuli. This review discusses the current advances in the related fields of mechanomics and elaborates how cells sense external forces and activate the biological responses.


Subject(s)
Biomechanical Phenomena , Gene Expression Regulation , Humans , Mechanotransduction, Cellular , Models, Biological , Proteome , Genetics , Metabolism , Stress, Physiological , Transcriptome
8.
Article in Chinese | WPRIM | ID: wpr-444342

ABSTRACT

Objective To study the feasibility and timing of early laparoscopic cholecystectomy (LC) for the patients with mild-to-moderate acute pancreatitis with gallbladder stone.Methods 26 patients with mild-to-moderate acute pancreatitis with gallbladder stone underwent early laparoscopic cholecystectomy.The patients were initially treated with conservative treatment.When the diagnosis was confirmed and the patients were stable,LC was carried out within 48 hours of hospitalization.The results were compared with a delayed group of patients who received delayed LC for acute pancreatitis.Results All the LC operations were successfully carried out.There were no significant differences between the two groups in alkaline phosphatase,alanine aminotransferase,aspartate aminotransferase,blood amylase and urine armylase on postoperative day 1,3,5,7.Patients who received early laparoscopic cholecystectomy had a shorter hospital stay.There were no significant differences between the two groups in the operation time,intraoperative blood loss,postoperative complication rates and recurrence of acute pancreatifis.Conclusion After CBD stones have been ruled out,it is safe and feasible to carry out early laparoscopic cholecystectomy within 48 hours of hospital admission for patients with mild-to-moderate acute pancreatitis with gallbladder stone.

9.
Acta Pharmaceutica Sinica ; (12): 1504-11, 2014.
Article in Chinese | WPRIM | ID: wpr-457185

ABSTRACT

Robust and efficient control of therapeutic gene expression is needed for timing and dosing of gene therapy drugs in clinical applications. Ribozyme riboswitch provides a promising building block for ligand-controlled gene-regulatory system, based on its property that exhibits tunable gene regulation, design modularity, and target specificity. Ribozyme riboswitch can be used in various gene delivery vectors. In recent years, there have been breakthroughs in extending ribozyme riboswitch's application from gene-expression control to cellular function and fate control. High throughput screening platforms were established, that allow not only rapid optimization of ribozyme riboswitch in a microbial host, but also straightforward transfer of selected devices exhibiting desired activities to mammalian cell lines in a predictable manner. Mathematical models were employed successfully to explore the performance of ribozyme riboswitch quantitively and its rational design predictably. However, to progress toward gene therapy relevant applications, both precision rational design of regulatory circuits and the biocompatibility of regulatory ligand are still of crucial importance.

10.
Article in Chinese | WPRIM | ID: wpr-566435

ABSTRACT

Objective To examine the expression of MMP -2 and HSP70 in salivary tumor and to explore the relationship among the expression of MMP -2 and HSP70 and the biological of the salivary tumor. Methods The expression of MMP -2 and HSP70 on 38 salivary tumor patients and controls was detected by immunohistochemistry. The data was disposed by SPSS software. Results The expression of MMP -2 and HSP70 in salivary tumor was higher than that in normal controls(P

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