Objective To investigate the therapeutic effect and mechanism of ursolic acid on carrageenan-induced chronic nonbacterial prostatitis (CNP) of SD rats. Methods Forty-two SD rats were randomly divided into five groups:normal control group, model control group, Pushitai group, ursolic acid high-dose group, and low-dose group.Except for normal control group, chronic nonbacterial prostatitis model was established using carrageenan. The rats of Pushitai group were treated with the solution of Pushitai at the dose of 148 mg??kg-1??d-1 for twenty days.The rats of ursolic acid high-dose and low-dose groups were administered with ursolic acid at the doses of 100 and 50 mg??kg-1??d-1 for twenty days, respectively. The rats of normal and model control groups were treated with isometric 5% CMC-Na for twenty days.The prostate index (PI) was calculated from the ratio of isolated rat prostate weight and body weight of rat.The expressions of IL-1β, TNF-α, and IL-10 were detected by ELISA. The histology and morphology of the prostate was observed with the aid of hematoxylin-eosin staining. Results Compared with the model control group, PI and the levels of IL-1β, TNF-α, and IL-10 in serum were significantly decreased in ursolic acid high-dose,and low dose groups ( P<0. 05 ) . Moreover, the pathological changes of prostate were improved significantly. Conclusion Ursolic acid has certain therapy effects on chronic nonbacterial prostatitis, which may be related to its regulating the expressions of IL-1β, TNF-α, and IL-10.

OBJECTIVE:To observe the clinical efficacy and safety of Bromfenac sodium eyed drops in the treatment of xe-rophthalmia. METHODS:80 patients with xerophthalmia were randomly divided into observation group and control group,with 40 cases in each group. Control group was given 0.1% Sodium hyaluronate,one drop,qd;observation group was given 0.1% Sodi-um hyaluronate eye drops,one drop,bid. Both groups received 14 d of treatment. The subjective symptom and sign,the time of lacrimal film break-up,fluorescent staining score and schemer test were observed in 2 groups before treatment,3,7,14 d after treatment. Clinical efficacy and the occurrence of ADR were observed in 2 groups. RESULTS:There was no statistical significance in subjective symptom and sign,the time of lacrimal film break-up,fluorescent staining score and tear between 2 groups before treatment,3,7 d after treatment(P>0.05). 14 d after treatment,subjective symptom and sign and fluorescent staining score of 2 groups were decreased significantly,and the time of lacrimal film break-up was prolonged and secretion was increased significant-ly;the observation group was significantly better than the control group,with statistical significance (P<0.05). The cure rate of observation group was 60.0%,which was significantly higher than that of control group(35.0%),with statistical significance(P<0.05). There were no statistical significance in ADR between 2 groups(P>0.05). CONCLUSIONS:Sodium hyaluronate eye drops is effective for xerophthalmia,and can relieve the symptoms with good safety.

Objective:To study the immunotherapy effects of different doses of human peripheral blood γδT cells on human hepatoma cells (SMMC-7721) xenograft model.Methods: (1)The nude mouse model of liver cancer was established by inoculated BALB/c mouse subcutaneous with human hepatoma cell line (SMMC-7721).(2)The mononuclear cells in healthy human were extracted from peripheral blood,and specific amplification γδT cells in vitro.(3) The nude mouse model divided into 5 groups by random.The positive control group was 5-Fu,negative control group was normal saline(NS).The treatment group was injected different doses of γδT cells(1×105,5×105 and 25×105)by nude mice tail vein.The positive control group injected 5-Fu by enterocoelia,negative control group injected NS by tail veins.The inhibition effect of different dose γδT cells on tumor was observed,including weight,food intake and growth conditions,etc.and the changes of tumor volume (TV),relative tumor volume (RTV)and relative tumor appreciation rate[T/C(%)] were compared with positive control group and negative control group.Results: Different dose of γδT cells had different degree of inhibition on nude mouse xenograft growth.RTV compared with saline negative control group was statistically significant (P<0.05).Compared with the positive control group of 5-Fu,the TV growth was significantly lower than the 5-Fu,degree of inhibition was similar in RTV each dose group,and all slightly higher than the 5-Fu positive control group.The each dose group of T/C (%)was slightly lower than the relative tumor proliferation rate of the control group of 5-Fu,but had no significant difference.Conclusion: The γδT cells from peripheral blood had significant inhibitory effect on nude mice transplanted liver tumor and it may be used as a new treatment for liver cancer immunotherapy provide experimental data.

OBJECTIVE: To determine whether the composite acoustic therapy is effective to treat tinnitus in patients with sudden deafness and to explore the mechanisms. METHOD: Ninety-six cases (96 ears) were divided into experimental group and control group, and all the patients underwent drug treatment. The patients in experimental group were given personalized composite acoustic therapy in the first 30 days, music therapy in next 31-90 days, however, the patients in control group were not given sound therapy. Additionally, pure tone audiogram, tinnitus pitch and loudness as well as questionnaires (including THI, VAS, and SAS) were conducted for each patient before treatment, at day 30 and day 90 posttreatment. RESULT: Eighty-nine patients (n = 47 for experimental group and n = 42 for control group) completed the trial. The results of day 30 posttreatment showed there were no significant differences in VAS and hearing recovery rate between these two groups, but THI and SAS showed significant differences. The results of day 90 posttreatment showed significant differences in VAS (P < 0.05), THI (P < 0.01) and SAS (P < 0.01), and no significant difference of hearing recovery rate was detected. The most significant changes of VAS appeared in the first 30 days of treatment. The hearing and tinnitus recovery in experimental group were better for the first 30 days of treatment than for the next 31-90 days, and similar results were obtaind in control group. (P < 0.01). CONCLUSION Composite acoustic treatment combined with drug therapy can improve the tinnitus and anxiety symptoms of patients with sudden deafness, and the effect on hearing recovery still need to be confirmed in further studies.
Acoustics ; Anxiety ; Hearing Loss, Sudden ; complications ; therapy ; Hearing Tests ; Humans ; Surveys and Questionnaires ; Tinnitus ; complications ; therapy ; Treatment Outcome

OBJECTIVE: To evaluate the clinical characteristics of tinnitus complaint. METHOD: The information of 628 patients with subjective tinnitus was collected using questionnaires from October, 2013 to June, 2014. Among them, 453 cases were included in this study, whose quality of life and sleep were significantly affected. Then we elucidated the features of tinnitus, tinnitus incentives and systemic diseases and analyzed their relationship. RESULT: The proportion of the patients complaint was highest in gruop ≤ 30 y. The patients with tinnitus complaint were more likely to have persistent tinnitus with higher loudness VAS scores than their counterparts. 65.4% of the total patients had at least one treatment (52.2% of patients can tolerate, and only 13. 2% can not tolerate). More patients had cranial Ming on the left than on the right ear. The proportion of patients with polyphony in bilateral tinnitus was higher than those with unilateral tinnitus (P < 0.05). Moreover, 59% patients had tinnitus inducing factors, and 44% patients had systemic comorbidities (The three most frequently involved systems were otolaryngologic, cardiovascular and digestive system). There was no significantly statistical difference of the tinnitus severity between patients with other systematic diseases and those without. CONCLUSION Patients with tinnitus complaint were younger in age (≤ 30 y) and more likely to have persistent tinnitus with higher loudness VAS scores Predisposing factors are closely associated with mental or physical trauma. The accompanied diseases can be classified by organ system.
Humans ; Quality of Life ; Surveys and Questionnaires ; Tinnitus ; diagnosis ; physiopathology

This study sought to probe into the mechanism of spontaneous contraction of portal vein. The morphological and electrophysiological characteristics of the freshly isolated interstitial cells (ICs) of rabbit portal vein were investigated by using immunohistochemical and conventional whole-cell patch clamp techniques. The isolated interstitial cells exhibited stellate-shaped or spindle-shaped bodies with a variable number of thin processes projecting from cell bodies, and these cells were noted to be c-Kit immunopositive. Under conventional whole-cell patch clamp configuration, the membrane potential was held at -60 mV, the spontaneous rhythmic inward currents were recorded in ICs, and the frequencies of which were similar to those of spontaneous contraction of portal vein. The inward currents were insensitive to nicardipine (an L-type calcium channel blocker) but could be abolished by gadolinium (a non-selective cation channel blocker). The results suggested that the spontaneous rhythmic inward currents recorded in freshly isolated ICs may be pacemaker currents which elicit the spontaneous contraction of portal vein.
Action Potentials ; Animals ; Electrophysiology ; Female ; Interstitial Cells of Cajal ; physiology ; Male ; Muscle, Smooth, Vascular ; physiology ; Periodicity ; Portal Vein ; cytology ; physiology ; Rabbits ; Transient Receptor Potential Channels ; metabolism

OBJECTIVE:To promote the safe use of Heparin sodium injection for children. METHODS:According to litera-ture retrieve,questionnaire survey and field investigation,Health care failure mode and effect analysis method(HFMEA)was ad-opted to search for the failure modes of Heparin sodium injection for children,and preventive strategies were established and imple-mented based on these failure modes. Its effects were evaluated by comparing the error rate and risk priority number rating (RPN value)before and after the implementation. RESULTS:Totally 5 risk points of Heparin sodium injection requiring immediate inter-vention were obtained from RPN value,including wrong dose of Heparin sodium injection in prescribing,pharmacists'unclearness for the calculation method of the dose of Heparin sodium injection in dispensing,and nurses'no performing of double check sys-tem before infusion in administration,etc. After implementing related countermeasures,related error of Heparin sodium injection was decreased from 8 cases to 1 case,and error rate was declined from 3.76% to 0.51%(P<0.01). The RPN values of 5 failure modes were decreased from 112.08,91.56,115.78,94.52,99.23 to 28.02,23.91,27.71,23.63,20.55,respectively. CONCLU-SIONS:HFMEA can prospectively conduct systematical analysis for Heparin sodium injection for children. Implementing related countermeasures based on the current situation of our hospital can reduce the related error of Heparin sodium injection and promote the medication safety of children.

Objective: To evaluate the effect of intraperitoneally injected dexmedetomidine on abdominal adhesions in rats and the role of cholinergic anti-inflammatory pathway. Methods: Forty clean-grade healthy adult male Sprague-Dawley rats, weighing 220-250 g, were divided into 4 groups (n = 10 each) using a random number table method: sham operation group (Sham group), abdominal adhesion group (AA group), dexmedetomidine group (DEX group) and dexmedetomidine plus methyllycaconitine group (DEX-M group). The rat model of abdominal adhesions was established by cecal friction method.In Sham group, abdominal cavity was only opened and then sutured.Normal saline 2 ml was injected into the abdominal cavity and tail vein in group AA.In DEX and DEX-M groups, normal saline 2 ml and α7 nicotinic acetylcholine receptor antagonist methyllycaconitine 2.4 μg/g (dissolved in 2 ml normal saline) were injected, respectively, and dexmedetomidine 10 μg/kg (dissolved in 2 ml normal saline) was intraperitoneally injected at the same time.The abdominal incision was opened under anesthesia at 7 days after establishing the model to observe the formation of abdominal adhesion, Phillips method was used for scoring, and enzyme-linked immunosorbent assay was used to determine the transforming growth factor-beta1 (TGF-β1) concentrations in ascites and tumor necrosis factor-alpha (TNF-α) concentrations in serum.The rats were then sacrificed, and the caecum tissue and its contralateral peritoneum and adhesion fibrous strips were obtained for examination of the pathological changes with a light microscope. Results: Compared with group Sham, the abdominal adhesion score and serum TNF-α concentrations were significantly increased in AA and DEX-M groups, and the TGF-β1 concentration in ascites was significantly increased in AA, DEX and DEX-M groups (P<0.05). Compared with group AA, the serum TNF-α concentrations and TGF-β1 concentration in ascites were significantly decreased in group DEX-M, and the abdominal adhesion score was significantly decreased (P<0.05), and the pathological changes of caecum tissue, contralateral peritoneum and adhesion fibrous strips were significantly attenuated in group DEX.Compared with group DEX-M, the serum TNF-α concentrations were significantly increased (P<0.05), no significant change was found in TGF-β1 concentration in ascites (P>0.05), and the pathological changes of caecum tissue, contralateral peritoneum and adhesion fibrous strips were accentuated in group DEX. Conclusion Intraperitoneally injected dexmedetomidine can mitigate abdominal adhesions, and the mechanism is related to activating cholinergic anti-inflammatory pathway and reducing systemic inflammatory response in rats.

Objective:To investigate the predictors of clinically important stress-related gastrointestinal bleeding (CIS-GIB) after acute stroke and their impact on short-term outcome.Methods:Consecutive acute stroke patients diagnosed as stress ulcer (SU) and admitted to Beijing Friendship Hospital from January 1, 2016 to January 1, 2020 were enrolled retrospectively. The primary outcome event was CIS-GIB and was defined as dominant gastrointestinal bleeding and corresponding clinical manifestations occurred within 24 h after bleeding. The second outcome event was the short-term clinical outcome assessed by the modified Rankin Scale score at 14 d after onset, and ≤2 was defined as a good outcome. Multivariate logistic regression model was used to analyze the independent influencing factors of CIS-GIB and short-term outcome. Results:A total of 96 patients with post-stroke SU were included, accounting for 2.5% (96/3 819) of all patients with acute stroke; among them, 16 patients (16.7%) developed CIS-GIB, accounting for 0.4% (16/3 819) of all patients with acute stroke. Among the included patients, there were 27 women (29.2%), with a median age of 70 years (interquartile range, 62-79 years). The median National Institutes of Health Stroke Scale (NIHSS) score was 8 (interquartile range, 3-17), and a median time interval between SU and the index stroke event was 2 d (interquartile range, 1-5 days). Compared with the non-CIS-GIB group, the baseline NIHSS score and the proportion of patients with supratentorial stroke were higher, the time interval between SU and the index stroke event was longer, the proportion of patients with coagulation dysfunction, using nasogastric tube and ventilator, receiving gastrointestinal invasive hemostasis and erythrocyte component transfusion were higher, and the risks of poor outcome and death were higher in the CIS-GIB group (all P<0.05). Multivariate logistic regression analysis showed that the baseline NIHSS score (odds ratio [ OR] 1.146, 95% confidence interval [ CI] 1.029-1.275; P=0.013), glycosylated hemoglobin ( OR 1.567, 95% CI 1.025-2.395; P=0.038), history of chronic gastric diseases ( OR 24.900, 95% CI 1.446-428.728; P=0.027), supratentorial stroke ( OR 5.701, 95% CI 1.002-32.443; P=0.050) and activated partial thromboplastin time ≥34.0 s ( OR 11.036, 95% CI 1.154-105.560; P=0.037) were the independent risk factors for CIS-GIB; the baseline NIHSS score was an independent influencing factor for poor outcome ( OR 1.366, 95% CI 1.029-1.812; P=0.031). Conclusion:The incidence of CIS-GIB in patients with acute stroke is about 0.4%, which significantly increases the risk of short-term adverse outcome. High glycosylated hemoglobin level, prolonged activated partial thromboplastin time, high baseline NIHSS score, supratentorial stroke and history of chronic gastric diseases are the independent risk factors for CIS-GIB.

Objective:To evaluate the effects of sevoflurane on right ventricular myocardial fibrosis caused by pulmonary arterial hypertension (PAH) in rats.Methods:Eighteen SPF healthy adult male Wistar rats, weighing 260-300 g, were divided into 3 groups ( n=6 each) by a random number table method: control group (group C), group PAH and PAH plus sevoflurane group (group PS). The PAH model was established by single intraperitoneal injection of monocrotaline 60 mg/kg in group PAH and group PS, while the equal volume of normal saline was intraperitoneally injected in group C. Sevoflurane 1.5 MAC was inhaled for 1 h starting from the end of injection, twice a week for 6 weeks in total, in group PS.Echocardiography was performed at the end of 6th week to measure right ventricular end-diastolic diameter (RVEDD), right ventricular anterior wall end-diastolic thickness (RVWTd), interventricular septal end-diastolic thickness (IVSTd), pulmonary artery inner diameter (PAID) and pulmonary valve orifice maximum peak velocity (PV). At the end of 6th week, the hearts were taken to measure the weight of right ventricle, interventricular septum and left ventricle, and Fulton′s index was calculated, and the tissue of the lower lobe of the right lung was taken, the outer diameter and inner diameter of the vascular wall were measured to calculate the vascular wall thickness index (WT), and total vascular area and lumen area were measured to calculate the vascular wall area index (WA) after HE staining.The myocardial tissue of the right ventricle was obtained to observe the degree of myocardial fibrosis (with a light microscope after Masson staining) and to detect the expression of TGF-β1 (after immunofluorescence staining) and expression of TGF-β1, phosphorylated Smad3 (p-SMad3) and Smad7 (by Western blot). Results:Compared with group C, Fulton′s index, RVEDD, RVWTd, IVSTd, PAID, WT and WA were significantly increased, PV was decreased, the expression of TGF-β1 and pSmad3 in right ventricular myocardial tissues was up-regulated, the expression of Smad7 was down-regulated( P<0.01), and myocardial fibrosis occurred in group PAH.Compared with group PAH, Fulton′s index, RVEDD, RVWTd, IVSTd, PAID, WT and WA were significantly decreased, PV was increased, the expression of TGF-β1 and pSmad3 in right ventricular myocardial tissues was down-regulated, the expression of Smad7 was up-regulated ( P<0.05 or 0.01), and myocardial fibrosis was significantly improved in group PS. Conclusion:Sevoflurane can improve the myocardial fibrosis in right ventricle induced by PAH in rats, and the mechanism may be related to inhibiting activation of TGF-β1/Smad3 signaling pathway.