Research progress on the intervention effects of Chinese medicine on microRNA regulating the signaling pathway of ulcerative colitis / 中国药房

Ulcerative colitis （UC） is a chronic non-specific inflammatory disease characterized by the damage of the epithelial barrier of the colon and the destruction of immune homeostasis. It has a long course， no recovery and high recurrence rate， and is recognized as a difficult digestive disease. MicroRNA （miRNA） has been confirmed to be specifically or differentially expressed in both UC patients and UC animal models， so miRNA can be used as markers for UC diagnosis or reference for treatment evaluation. TCM therapy has a definite therapeutic effect， a wide range of effects， and minimal side effects in the treatment of UC， so this article takes miRNA as the starting point and systematically elaborates on the mechanism of TCM regulating UC related signaling pathways by regulating the expression of miRNA. The results show that chlorogenic acid， Anchang decoction， and Fuyang huoxue jiedu formula can regulate the expressions of miR-155， miR-146a and miR-31-5p， etc.， thereby inhibiting signal transducer and activator of transcription （STAT） signal pathway transduction to improve UC. Limonin， ginsenoside Rh2， artesunate， etc. can inhibit nuclear factor-κB （NF-κB） signaling pathway conduction to improve UC by regulating the expressions of miR-214， miR- 155 and miR-19a， etc. Nitidine chloride， berberine， resveratrol， etc. can regulate the expressions of miR-31， miR-146a， miR- 146b， etc.， thereby inhibiting the Toll-like receptor 4 （TLR4） signaling pathway to improve UC. Mango polyphenolics， Compound qinbai granules， and Astragalus membranaceus polysaccharides can regulate the expressions of miR-126 and miR-193a-3p， thereby inhibiting the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin （PI3K/AKT/mTOR） signaling pathway to improve UC.

Relationship Between NLRP3 Inflammatory Corpuscles and Chronic Atrophic Gastritis Based on "Spleen-mitochondrion Correlation" / 中国实验方剂学杂志

Chronic atrophic gastritis （CAG） is a common and intractable disease in the digestive system characterized by the reduction or disappearance of gastric mucosal glands. The intestinal metaplasia or dysplasia in CAG is called precancerous lesion， which greatly increases the risk of cancerization. Dysactivation of nucleotide-binding oligomerization domain-like receptor protein 3 （NLRP3） inflammatory corpuscles can release a large number of inflammatory factors， induce inflammatory cascade reactions， and participate in the process of many diseases. As reported， the dysactivation of NLRP3 inflammatory corpuscles can cause long-term chronic inflammatory infiltration of gastric mucosa and induce the development of CAG. Mitochondrial dysfunction plays an important role in the activation of NLRP3 inflammatory corpuscles. The accumulation of reactive oxygen species （ROS） produced by mitochondrial dysfunction is the key to activating NLRP3 inflammatory corpuscles. Professor LIU Youzhang put forward the theory of "spleen-mitochondrion correlation"， which holds that the spleen mainly transports water and grains， generates qi and blood， transports nutrients to the whole body， and supplies energy and materials needed by the body. Adenosine triphosphate （ATP） generated by mitochondria through the circulation of tricarboxylic acid is the main energy source of the human body. The view that both of them serve as human energy processing plants coincides in terms of physiology. Pathologically， spleen deficiency is associated with mitochondrial oxidative phosphorylation dysfunction. Pathological products such as dampness， turbidity， phlegm， and blood stasis due to failure in transportation because of spleen deficiency are consistent with metabolites generated by mitochondrial dysfunction. Based on the theory of "spleen-mitochondrion correlation"， this study discussed the pathogenesis of CAG in traditional Chinese medicine （TCM）， analyzed the relationship between NLRP3 inflammatory corpuscles and the pathogenesis of CAG， and proposed that the activation of NLRP3 inflammatory corpuscles by mitochondrial dysfunction was the modern biological basis of the pathogenesis of spleen deficiency in CAG. The spleen-strengthening method may be related to improving the mitochondrial function and inflammatory response of patients with CAG and alleviating the damage of gastric mucosa， providing a new idea for TCM in the prevention and treatment of CAG.

Pharmacogenomic testing-based precision medicine in the elderly: Current status and prospects / 中华老年医学杂志

Comorbidities will inevitably lead to an increase in the number of medications used and adverse drug reaction events in elderly patients.Therefore, it is urgent to implement precision medicine in the elderly population.pharmacogenomic testing can increase the opportunity of individualized drug selection for elderly patients, reduce the risk of adverse drug reactions, reduce the cost-effectiveness ratio of medication, improve elderly patients' medication compliance, and thus reduce their readmission rate.Therefore, it is necessary to promote pharmacogenetic testing for elderly patients with comorbidities and polypharmacy, so as to provide measures for the implementation of personalized medicine in the elderly.

Survey on continuing medical education needs of pediatricians working at county-level medical institutions in nine provinces of China / 中华医学教育探索杂志

Objective:To investigate the pediatricians' needs in the contents of continuing medical education (CME), and the influencing factors of participating in CME, so as to provide references for improving their vocational ability.Methods:Questionnaire survey was carried out for the pediatricians from county-level medical institutions in the nine provinces of China. The questionnaire contents included: basic information, CME contents needs, and influencing factors of participating in CME. SPSS 22.0 was used for chi-square test.Results:A total of 465 questionnaires was recovered, among which 463 were qualified, with a pass rate of 99.6%. Research showed that ① In terms of competency training needs, pediatricians had higher training demand for ability of diagnosis and treatment of children's diseases, pediatrics basic skills and skills related to children's health care, etc. Pediatricians with junior or intermediate title had higher training demand for ability of self-learning and access to learning resources ( P < 0.01); and pediatricians with senior title had higher training demand for teaching ability ( P < 0.05). ② In terms of pediatrics specialty content training needs, pediatricians had higher demand for neonatology, infectious, respiratory, critical medicine, developmental behavior and digestion in order. ③ Regarding the influencing factors of CME, too few opportunities to participate in training, too busy to have time to participate, and defects in curriculum arrangement were the main factors affecting the CME participation of pediatricians. Conclusion:Pediatricians with different professional title had different training needs for CME contents. Lack of CME resources, contradiction between work and study, and curriculum arrangement deficiencies might be the main influencing factors affecting the CME participation of pediatricians working at county-level medical institutions.

Application of immune checkpoint targets in the anti-tumor novel drugs and traditional Chinese medicine development

Immune checkpoints are the crucial regulators of immune system and play essential roles in maintaining self-tolerance, preventing autoimmune responses, and minimizing tissue damage by regulating the duration and intensity of the immune response. Furthermore, immune checkpoints are usually overexpressed in cancer cells or noninvasive cells in tumor tissues and are capable of suppressing the antitumor response. Based on substantial physiological analyses as well as preclinical and clinical studies, checkpoint molecules have been evaluated as potential therapeutic targets for the treatment of multiple types of cancers. In the last few years, extensive evidence has supported the immunoregulatory effects of traditional Chinese medicines (TCMs). The main advantage of TCMs and natural medicine is that they usually contain multiple active components, which can act on multiple targets at the same time, resulting in additive or synergistic effects. The strong immune regulation function of traditional Chinese medicine on immune checkpoints has also been of great interest. For example,

A Case Report on Successful Third Challenge to the Pemetrexed-based Regimen for Advanced Non-small Cell Lung Cancer / 中国肺癌杂志

Non-small cell lung cancer (NSCLC) accounts for about 85% of lung cancer, with a 5-year survival rate of less than 15%-19%, and more than 80% of the patients with lung cancer have progressed to advanced stage (Stage IIIb-IV) when they are clearly diagnosed. The comprehensive treatment mainly based on chemotherapy as the primary form is now considered as the major therapy method for advanced NSCLC without actionable driver gene mutations. Pemetrexed plus platinum doublet as well as single-agent pemetrexed are respectively the first-line major regimens recommended by guidelines and the second-line optional regimens. Yet the third-line treatment or beyond in advanced NSCLC is not evidence-based but conducted based on patients' previous medications, which is one of the most commonly used clinical methods. As pemetrexed is a multi-target chemotherapy drug with high efficiency but low toxicity, pemetrexed re-challenge strategy in advanced NSCLC is also a reasonable choice. We report one effective individual case that adopted pemetrexed re-challenge strategy in advanced NSCLC for three times, and at the same time conduct the relevant literature review.

Efficacy of follicular unit extraction in the repair of scarring eyebrow loss: a clinical observation / 中华皮肤科杂志

Objective To evaluate the efficacy of follicular unit extraction (FUE) in the repair of scarring eyebrow loss.Methods A total of 30 patients with scarring eyebrow loss were treated with FUE technique in the Department of Plastic Surgery of Zhengzhou First People's Hospital,including 18 females and 12 males with 41 eyebrow defects.Fine soft hairs with a length of 5-10 mm were extracted from the back of the ear and temporal region of the patients,and then were split into individual follicular units under a microscope at 6 × magnification.The transplant density ranged from 20 to 30 FU/cm2.Results During the 3-18 months of follow-up after the surgery,eyebrows in the recipient areas grew in a natural direction and showed good appearance.The survival rate of hair grafts was up to 90％,and the patients were satisfied with the results.Conclusion FUE may be an ideal method for the treatment of scarring eyebrow loss with less injury and high survival rate of hair grafts.

A clinical study of electro-acupuncture combined withLeitoufeng granules for primary trigeminal neuralgia / 国际中医中药杂志

Objective To detect the therapeutic effectiveness of electro-acupuncture combined with Leitoufenggranules for primary trigeminal neuralgia.MethodsA total of 60 patients with PTN were randomly divided into the control group and the treatment group (30 in each group). Control group received Carbamazepine, and the treatment group received the electro-acupuncture combined withLeitoufeng granules. Both groups were treated for 15 days as a period of treatment with 3 treatments in total. The outcomes were S hort form of the McGill Pain Questionnaire (SF-MPQ), painratingindex (PRI), the number of word feature (NWC), the present painindex (PPI), the Visual Analogue Scale (VAS) the clinical effect rate and recurrence rate. Results After treatment, compared with the control group, the effect rate (96.67%vs. 70.00%,χ2=5.880,) in the treatment group showed significantly higher (P=0.015). Compared with the control group, PRI (0.20 ± 0.47 vs. 3.33 ± 4.65,t=3.592), NWC (0.20 ± 0.48vs. 1.40 ± 1.87,t=3.345), VAS (0.20 ± 0.48vs. 1.27 ± 1.66, t=3.321), PPI (0.17 ± 0.38vs.0.90 ± 0.99,t=3.771) and the total score (0.79 ± 1.83vs. 6.90 ± 9.05,t=3.602) in the treatment group were significantly lower (P<0.01). In the follow-up of 3 months, compared with control group, the recurrence rate (10.0%vs.56.6%,χ2=12.675) in the treatment group significantly lower (P<0.01). Conclusion As to the treatment of primary trigeminal neuralgia, the effect of acupuncture combined with Leitoufeng granules was superior to the Carbamazepine.

Research on Optical Parameter along Puncture Path in Spinal Surgery Navigation Based on Near Infrared Spectroscopy / 生物医学工程学杂志

Accurate placement of pedicle screws is a key factor of spinal surgery. Investigation of a new real-time intra-operative monitoring method is an important area of clinical application research which makes a contribution to planting pedicle screw accurately. Porcine spines were chosen as experimental objects. The changes of reduced scattering coefficient (μ'(s)) along normal puncture path, medial perforation path and lateral perforation path were measured and studied. A conclusion is drawn that there are two distinct peaks throughout the puncture process, appearing at the junction of cancellous bone and cortical bone, at the beginning and at the end, respectively. The reduced scattering coefficient is proved to be a good monitoring factor which can identify whether the screw is about to reach the critical position of the spine puncture. Moreover, the variation provides an important reference for spinal surgical navigation process.

Clinical effectiveness of micro-plasma combined with radio frequency in treatment of stretch marks / 中华医学美学美容杂志

Objective To study the clinical effect and application value of micro-plasma beam joint radiofrequency treatment for the striae of pregnancy.Methods 21 female patients with the striae of pregnancy were included in this study,treated from the July 2012 to March 2014,aged 25-37 years;and time of the striae was from 3 months to 7 years.Micro-plasma radiofrequency technology was used to treat the striae,with interval of 30 days each time for total seven months.The total effective rate,satisfaction,and the adverse reaction were evaluated after the treatment.Results 21 patients included grade 4 in 6 cases,grade 6 in 10 cases,grade 2 in 4 cases and grade 1 in 1 case;the total effective rate was 95.2％ (20/21).Satisfactory degree was for the level C in 6 cases,B in 14 cases,and A in 1 case,with total satisfactory rate of 95.2％ (20/21).Adverse reactions included mild pigmentation in 2 patients after scab skin falling off,and disappeared at the end of the treatment course.Conclusions Micro-plasma beam combined with radio frequency in treating the striae of pregnancy has clear curative effect and good clinical application value.

Preliminary investigations into surface molecularly imprinted nanoparticles for Helicobacter pylori eradication

This paper reports investigations into the preparation and characterization of surface molecularly imprinted nanoparticles (SMINs) designed to adhere to Helicobacter pylori (H. pylori). Imprinted nanoparticles were prepared by the inverse microemulsion polymerization method. A fraction of Lpp20, an outer membrane protein of H. pylori known as NQA, was chosen as template and modified with myristic acid to facilitate its localization on the surface of the nanoparticles. The interaction between these SMINs with the template NQA were evaluated using surface plasmon resonance (SPR), change in zeta potential and fluorescence polarization (FP). The results were highly consistent in demonstrating a preferential recognition of the template NQA for SMINs compared with the control nanoparticles. In vitro experiments also indicate that such SMINs are able to adhere to H. pylori and may be useful for H. pylori eradication.

Application of soft tissue expansion combined with follicular unit extraction for burn cicatricial bald / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the therapeutic effect of soft tissue expansion combined with follicular unit extraction( FUE) for burn cicatricial bald.</p><p><b>METHODS</b>48 patients with burn cicatricial bald (> 25 cm2) were treated in three stages. The expanders were implanted on the first stage. After expansion for 8 weeks, the expanders were taken out and local flaps were transferred. One year later, follicular unit extraction( FUE) was applied on the bald area.</p><p><b>RESULTS</b>48 cases were followed up for 5 years with satisfactory cosmetic results. The VAS assessment of satisfaction on hair appearance after three-staged surgery was 8.2 ± 2.1.</p><p><b>CONCLUSIONS</b>Soft tissue expansion combined with FUE has a reliable effect for burn cicatricial bald.</p>

The individualized training for academic type of medical graduate students / 中华医学教育探索杂志

Cultivation of academic type of medical graduate students is an important part of medical education system in our country and the individualized cultivation is an important way of training.Frist,the individualized cultivation of academic type of medical graduate students requires that supervisors fully understand the characteristics of the graduate students based on supervisors' subjective feelings and the result of scientific research test of the students.and then divide the students into three types(type A,B and C).With reference to the PDCA cycle management model,the supervisors carry out the individualized cultivation for different types of students in various links of the PDCA cycle,in order to encourage excellent students,urge the average students,and help the students who are behind.From the result of the individualized cultivation of academic type of medical graduate students in single research team,the proportion of students type rose from 2.9％ (type A),65.7％ (type B) and 31.4％(type C) at the beginning to 23.5％(type A),68.6％(type B) and 7.9％(type C) at the time of graduation.The research output is huge,so as to promote the quality of cultivation of academic type of medical graduate students.

The relationship between left ventricular diastolic function and arterial stiffness of diabetes patients / 中国综合临床

Objective To investigate the association between left ventricular diastolic function and arterial stiffness in patients with type 2 diabetes mellitus. Methods One hundred and two patients with type 2 diabetes( diabetic group),and 126 non-diabetic patients( control group) were selected from Jan. 2012 to Dec. 2013 in the Beijing Military General Hospital. The clinical features were recorded and free blood glucose (FBG ),blood lipids were measured. Cardio ankle vascular index( CAVI ) was measured by VS-1000 arteriosclerosis detector. Ultrasound heartbeat diagram was used to determine the left ventricular diastolic function indexes including the left atrial diameter(LAD),left ventricular early diastolicpeak velocity(E),left ventricular diastolic peak velocity(A),E/ A ratio and E peak deceleration time(EDT). Results The level of LAD,A, EDT,CAVI in diabetic patients were(39. 5 ± 5. 3)mm,(76. 6 ± 13. 5)cm/ s,(206. 6 ± 56. 3)ms,(9. 6 ± 1. 1)respectively,higher than those in control group((34. 4 ± 4. 2)mm,(71. 3 ± 13. 4)cm/ s,(185. 5 ± 34. 4)ms,(8. 5 ± 0. 9)). And E,E/ A level in diabetic group were(56. 6 ± 20. 4)cm/ s and(0. 73 ± 0. 21),significantly lower than the control group((67. 5 ± 16. 4)cm/ s and(0. 96 ± 0. 26)). The differences between the two groups were significant(P = 0. 001,0. 004,0. 002,0. 001,0. 001,0. 001). After adjusting the factors including body mass index and triglyceride,CAVI was negatively correlated with E/ A(r = - 0. 339,P< 0. 05))and positively correlated with EDT(r = 0. 314,P < 0. 05). Conclusion The diabetic patients with lower diastolic function and higher arterial stiffness,and the two factors are negatively correlation.

Renal Toxicity Induced by Melamine Intake Single and Combined with Cyanuric Acid / 环境与健康杂志

Objective To explore the renal toxicity induced by melamine intake single and combined with cyanuric acid.Methods Thirty-six clean weanling male Wister rats were randomly divided into 3 groups,12 in each,treated with melamine and cyanuric acid through food for 28 consecutive days,group 1 treated with melamine at 25 mg/kg,group 2 treated with melamine (25 mg/kg) plus cyanuric acid (25 mg/kg),group 3 is control,fed on normal pet food.After 4 weeks of treatment,the rats were sacrificed and blood indicators,histopathological examination of kidney were conducted.Renal tissues from the affected rats were analyzed using high-performance liquid chromatography and mass spectrometry.Kidney X-ray diffraction was performed to determine the existence of crystals.Results In group 1 and 2,polyuria,hypokinesia and weight loss (P

Kidney Damage Induced by Melamine / 环境与健康杂志

Objective To explore the pathogenesis of renal damage induced by melamine and the characteristics of kidney damage in rats.Methods Twenty Wister rats were randomly divided into one control group fed with normal pet food and one exposure group fed with animal food mixed with melamine at 25 mg(/kg?d).After 4 weeks,biochemical indexes of blood were determined,histopathological examination was performed,and kidney/body weight was measured among rats.The kidney slices were observed using light microscopy of animal anatomy.Renal tissues from affected rats were analyzed using high-performance liquid chromatography and mass spectrometry.Kidney X-ray diffraction were performed to determine the existence of crystals Results After 4 weeks of melamine exposure,the rats showed polyuria,less activity,weight loss,increasing levels of serum creatinine,urea nitrogen,triglyceride.The appearance of kidney significantly changed.The diffuse distribution of the point and the flake crystal shadow were observed in kidney slices.Histopathological examination showed the existence of a large number of crystals in renal tubular,renal tubular epithelial damage.The analysis of high-performance liquid chromatography and mass spectrometry revealed that crystals were composed of melamine and cyanuric acid.Kidney X-ray diffraction revealed that crystals could be found in kidneys of rats.Conclusion Melamine can enter the body through the digestive tract and generate partially cyanuric acid through hydrolysis.Then cyanuric acid and melamine formed cocrystals in renal tubules leading to progressive tubular blockage,renal tubular epithelial damage,tubular reabsorption dysfunction,eventually renal failure.

Changes of different regulators of G protein signaling in spontaneously hypertensive rat / 中国介入心脏病学杂志

Objective To study changes of different regulators of G protein signaling(RGS) including RGS2, RGS3 and RGS4 mRNA in aorta and heart of spontaneously hypertensive rats (SHR), as well as their correlation with physiological phenotype of cardiovascular system. Methods Haemodynamic indexes of the cardiovascular system were measured. Heart weight and left ventricular weight were determined to calculate the ratio of heart weight to body mass (HW/BM) as well as left ventricular mass index (LVMI) in both male SHR and Wistar rats. Real-time PCR after RT were performed to determine the level of RGS mRNA in aorta and heart. Results Systolic blood pressure (SBP) of SHR was significantly higher than that of the control (229?29 vs. 121?12 mm Hg, P