Cholestasis ; Humans ; Liver Diseases

MicroRNA(miRNA) is involved in virtually all biologic processes, including cellular proliferation, apoptosis, and differentiation. Thus, miRNA deregulation often results in impaired cellular function and disease development, so miRNAs have potential therapeutic relevance. The elucidation of these processes regulated by miRNAs and the identification of novel miRNA targets in the pathogenesis of hypertension is a highly valuable and exciting strategy that may eventually led to the development of novel treatment approaches for hypertension. Several mechanisms have been implicated in the pathogenesis of hypertension: overactivation of therenin-angiotensin-aldosterone system (RAAS), dysfunction of the vascular endothelium, damnification of vascular smooth muscle. To maintain and restore target organ expression of miRNA stable may be a new strategy for treatment of hypertension. The article reviews pathogenesis of miRNA and hypertension, researches of miRNAs as biomarker and therapeutic target, discusses advances in miRNA-based approaches that may be important in treating hypertension.
Animals ; Biomarkers ; metabolism ; Humans ; Hypertension ; drug therapy ; genetics ; metabolism ; MicroRNAs ; genetics ; metabolism ; Molecular Targeted Therapy

Objective: To screen the optimal formula and preparation process of vitamin B1 ( VB1 ) sustained-release tablets. Methods:The single-factor tests were used to investigate the type of filler, type and amount of matrix material hydroxypropyl methycel-lulose(HPMC), type and amount of retarder, tablet weight and core hardness. The orthogonal tests were used to investigate the amount of HPMC and ethyl cellulose( EC) and the core hardness. Results:The optimum formula was as follows:HPMC accounted for 50% of the tablet weight, EC accounted for 20%, the filler was lactose, the tablet weight was 200 mg and the tablet core hardness was 50 N. Conclusion:The prepared sustained-release tablets have significant controlled-release property, which provides reference for the devel-opment of new dosage form for VB1 .

In order to evaluate the changes in T cell subsets after acute irradiation injury, and investigate the mechanism of deficiency of cellular immunity in acute irradiation syndrome, Balb/c mice were exposed to a single total body irradiation of 5Gy gamma rays from a 60 Co source. On days 10, 28 and 120, the amounts of CD4 + and CD8 + subsets in spleen cells were evaluated by flow cytometry (FCM), and expression of IL 4 gene in ConA stimulated spleen cells was evaluated by reverse transcription linked polymerase chain reaction, in which ?-actin gene was used as an internal control. It was found that after irradiation, the ratio of CD4 + /CD8 + became significantly higher than that of the controls, and then the ratio lowered gradually until day 120. However, it still did not return to the level of the controls. On day 10, expression of IL 4 gene at mRNA level increased significantly. The results indicated that CD8 + subset was more radiosensitive than CD4 + , and the pattern of cytokine seeretion shifted to that of Th2 soon after irradiation.

Objective:To study parenting style of difficultly educated children and the state of their mental health.Methods:Randomly select 120 difficultly educated children from a Training Camp in Changsha and used SCL-90 and EMBU to rate their parenting style and mental health.Results:The mental health condition of difficultly educated children was significantly worse than the norms,but the normal middle school students parental warmth was higher than the difficutly educated students.Difficultly educated children scored significantly higher in father's firm control,punishment,over interference,rejection and denial and maternal rejection and denial,firm control and punishment,but significantly lower in parental warmth.Conclusion:Difficultly educated children had got more mental problems,and their parents treat them with more negative parenting style and less positive parenting style.

In order to explore the effects of testicular infection of murine cytomegalovirus (MCMV) on mature sperm viability at different periods following MCMV inoculation in mice, 91 BALB/c mice without MCMV infection were randomly divided into two groups: an experimental group (n = 56) and a control group (n = 35). The mice in the experimental group were treated by inoculating MCMV intratesticularly, while those in the controlled group were directly inoculated with DMEM without MCMV. The mice in both groups were sacrificed separately on the day 1, 1. 5, 2, 4, 6, 9 and 14 post-inoculation (D1) 1. 5, 2, 4, 6, 9 and 14 PI). The MCMV M83 mRNA gene was detected in the testis by in situ hybridization (ISH) with MCMV late-mRNA probe labeled with digoxin. Sperm viability of mature sperm in the epididymis cauda was measured. The results demonstrated the positive signal of ISH of MCMV was found mainly in the cytoplasm of the testicular interstitial cells and spermatogenic cells in the experimental group. Compared with that in the controlled group, the sperm viability in the experimental group was decreased significantly on D1 PI and D1.5 PI (P < 0.05). No statistically significant difference in the sperm viability was found after D2 PI between two groups (P > 0.05). This suggested that sperm viability in mice might be descended significantly shortly after MCMV infection and might return to normal with time, indicating that MCMV acute infection might temporarily degrade sperm quality and influence procreation transiently.
Cytomegalovirus Infections/*physiopathology ; Mice, Inbred BALB C ; Orchitis/*virology ; Random Allocation ; Sperm Motility/*physiology ; Spermatozoa/cytology ; Spermatozoa/*physiology

MicroRNAs (miRNA) plays an important role in biological development and disease occurrence and development, and acts as a "main switch" in biology. Among patients of essential hypertension, around 1/3 would suffer left ventricular hypertrophy (LVH). Hence, essential hypertension becomes an independent risk factor for cardiovascular diseases. And miRNAs plays an important role in the occurrence and development of LVH. This paper reviewed the role of miRNA in regulating the stress signaling pathway, defined its impact on the occurrence of LVH, and further emphasized the opportunities and challenges of miRNA as a biomarker and therapeutic target.
Essential Hypertension ; Humans ; Hypertension ; complications ; genetics ; Hypertrophy, Left Ventricular ; complications ; genetics ; MicroRNAs ; genetics ; Risk Factors ; Signal Transduction ; genetics

Objective:To optimize the formula of ropivacaine hydrochloride transdermal gel. Methods:The steady transdermal rate and cumulative transdermal percentage in 24 h of ropivacaine hydrochloride gel were used as the indices, an orthogonal design was applied to select the optimal formula, and Design Expert 8. 0. 5. 0 software was used to analyze the results. Results: The optimal formula con-tained 2% carbomer, 10% propylene-glycol and 5% Azone. The steady transdermal rate of the optimal formula was 0. 6951 mg·h-1 · cm-2 . The cumulative transdermal percentage in 24 h of the optimal formula was 91. 04%, which was 22. 79% higher than that of ropiva-caine hydrochloride solution with the same concentration. Design Expert 8. 0. 5. 0 software could predict the steady transdermal rate and cumulative transdermal percentage in 24 h of the optimal formula. Conclusion: The preparation design is reasonable, and the gel has promising properties, which is suitable for skin local application.

Objective To investigate the clinical outcome of patients who underwent whole embryo vitrification freezing and thawed frozen embryo transplantation, and to compare it with the patients at the same period in the fresh cycle to explore the value of vitrification technology in the whole embryo freezing combined with recovery transplantation. Methods The whole embryo freezing group included 40 untransplanted cases of in-vitro fertilization (IVF), while another 300 patients in the fresh cycle with in vitro fertilization and embryo transfer (IVF-ET) at the same period served as the fresh cycle group. The average number of transferred embryos, high-quality embryos, endometrial thickness, estradiol (E2) level, and clinical pregnancy rate were compared.Results The average number of transferred embryos, high-quality embryos, difference in endometrial thickness were not significant between the 2 groups (P>0.05); the E2 level of the fresh cylcle group was significantly higher than that of the whole embryo freezing group (P<0.05), and the clinical pregnancy rate in the fresh cylcle group was significantly lower than that of the whole embryo freezing group (P<0.05). Conclusion Vitrification technology is a simple, reliable, and efficient embryo freezing technology. For patients who meet the requirements, whole embryo vitrfication freezing and thawed frozen embryo transplantation is feasible. It is worth for further clinical research.

Objective To evaluate the clinical application of computer-aided electromagnetic imaging navigation in nasal endoscopic surgery.Methods Twenty-two cases of nasal endoscopic surgery with intraoperative imaging navigation were retrospectively reviewed,including 16 cases of sinusitis with or without polyp;5 cases of nasal inverting papilloma; 1 case of maxillary capillary hemangioma.All cases were operated with computer-aided electromagentic imaging navigation and nasal endoscope.Results The preoperative preparing time would take 4-10 minutes.In 22 cases,the localization accuracy between 3-D image landmarks of navigation system and actual anatomical landmarks was less than 1 mm.The optic nerve and other anatomical landmarks could be orientated accurately in intraoperative procedures.No complication occurred.Conclusions Nasal endoscope combined with computer-aided electromagnetic imaging navigation provides accurate anatomical localization of nasal cavity,sinuses and anterior skull base.It could improve the effectiveness and decrease surgical complications,especially in complicated cases.