NONMEM

Heart failure with preserved ejection fraction (HFpEF) displays normal or near-normal left ventricular ejection fraction, diastolic dysfunction, cardiac hypertrophy, and poor exercise capacity. Berberine, an isoquinoline alkaloid, possesses cardiovascular benefits. Adult male mice were assigned to chow or high-fat diet with L-NAME ("two-hit" model) for 15 weeks. Diastolic function was assessed using echocardiography and noninvasive Doppler technique. Myocardial morphology, mitochondrial ultrastructure, and cardiomyocyte mechanical properties were evaluated. Proteomics analysis, autophagic flux, and intracellular Ca²⁺ were also assessed in chow and HFpEF mice. The results show exercise intolerance and cardiac diastolic dysfunction in "two-hit"-induced HFpEF model, in which unfavorable geometric changes such as increased cell size, interstitial fibrosis, and mitochondrial swelling occurred in the myocardium. Diastolic dysfunction was indicated by the elevated E value, mitral E/A ratio, and E/e' ratio, decreased e' value and maximal velocity of re-lengthening (-dL/dt), and prolonged re-lengthening in HFpEF mice. The effects of these processes were alleviated by berberine. Moreover, berberine ameliorated autophagic flux, alleviated Drp1 mitochondrial localization, mitochondrial Ca²⁺ overload and fragmentation, and promoted intracellular Ca²⁺ reuptake into sarcoplasmic reticulum by regulating phospholamban and SERCA2a. Finally, berberine alleviated diastolic dysfunction in "two-hit" diet-induced HFpEF model possibly because of the promotion of autophagic flux, inhibition of mitochondrial fragmentation, and cytosolic Ca²⁺ overload.
Male ; Mice ; Animals ; Heart Failure/drug therapy* ; Stroke Volume/physiology* ; Ventricular Function, Left/physiology* ; Berberine/therapeutic use* ; Disease Models, Animal ; Mitochondrial Dynamics ; Myocardium ; Homeostasis

Aim To establish and compare asthma models among different strains of obese mice. Methods Different strains of SPF female mice, namely Kunming ( KM ) , C57BL/6J and BALB/c mice, were randomly divided into four groups ( control group, asthma group, obesity group and obese asthma group). The mice were fed a high-fat diet or a normal diet for 12 weeks, following which they were sensitized and challenged with ovalbu-min ( OVA) or phosphate-buffered saline ( PBS) . Body weight, fat weight, liver weight, Lee′s index, OVA-specific IgE concen-tration in bronchoalveolar lavage fluid ( BALF) , serum total cho-lesterol ( TC) and triglyceride ( TG) levels, and lung and adi-pose morphologies were evaluated. The specific airway resistance ( sRaw) was measured using double-chamber plethysmography. Results The mice on a high-fat diet showed a more rapid in-crease in body weight compared with those on a normal diet. Af-ter 12 weeks of feeding, body, fat, and liver weights and Lee′s index were higher for the obese mice than for the lean mice. The adipocyte cross-sectional area was significantly greater in the obese BALB/c and KM mice than in their lean counterparts;the C57BL/6J groups showed no significant differences. The BALB/c mice demonstrated more significant symptoms of acute asthma, local inflammation and airway hyper-responsiveness ( AHR ) . Conclusion Compared with C57BL/6J and KM mice, BALB/c mice fed a high-fat diet and sensitized and challenged with OVA provide the most suitable model for evaluating the relationship between obesity and asthma.

Objective:To evaluate the analgesic effects of two kinds of preoperative peripheral nerve block drug in patients with tri-geminal neuralgia undergoing radiofrequency thermocoagulation(RFT)of gasserian ganglion.Methods:90 patients with classic trigemi-nal neuralgia of the 3rd branch were scheduled to undergo RFT of the gasserian ganglion and were randomly divided into 3 groups(n =30).The patients in group N without nerve block were served as the controls.The patients in group A and B were treated by the nerve block of inferior alveloar with 2 ml of 2% lidocaine hydrochloride and 2 ml of compound lidocaine hydrochloride for each respectively 2 d before RFT.The pain control was studied by VAS method before and 24,48 h after nerve blocking and during pucture for RFT.Re-sults:Compared with the control group,24 h after nerve blocking,the average pain and the most pain VAS value of group A and B were significantly reduced(P <0.01);sleep quality and analgesia satisfaction were improved in group A and B(P <0.05).48 h after nerve blocking the pain relief and sleep quality improvement of group B were more than those of group A(P <0.05).In addition,during RFT puncture the pain intensity of group A and B were less than that of group N(P <0.05).The pain control in group B was more effective than that in group A.Conclusion:A single peripheral nerve block with long-term narcotic compound lidocaine hydrochloride can be an effective way to relieve preoperative and operative pain for RFT of trigeminal neuralgia.

Objective To investigate the training needs of different level nurses in Xinjiang private hospitals, so as to provide the theoretical references for private hospital managers to make training strategy . Methods According to different geographical location in Xinjiang , using a stratified random sampling method , questionnaire survey was conducted among 366 nursing staff in private hospitals to compare training needs in different levels nurses .Results Compared with low seniority of nurses , the high seniority of nurses weighted nursing management knowledge more , while weighted nursing basic and specialized knowledge less , the differences were statically significant (F=15.48,17.62,21.58,respectively;P<0.05).Conclusions Training of nursing staff in private hospitals in Xinjiang should be conducted according to the learning needs of different seniority nurses, and to adopt practical and flexible training methods , so that to set up a reasonable talent team for private hospitals.

Objective To summarize the clinical experience of treatment of recurred urinary stone.Methods The patients who needed to be treated again from 1998 to 2002 were reviewed.Results Patients with recurred urinary stone were differentiated by symptom,the causation of recurred stone and operation.Conclusion The pointed step must be adopted based on the clinical character of recurred urinary stone.Preventing against recurred and choosing appropriate method can improve the treatment effect.