Retinal ischemia is a common cause of blindness and visual impairment.Some eye diseases,such as glaucoma,retinal artery occlusion and diabetic retinopathy,are associated with retinal ischemia.It is very important to build an ideal animal model which can imitate human retinal ischemia disease for investigating the pathological mechanism and treatment of retinal ischemia.Rodent is a popular choice for retinal ischemia model due to its availability and the similarity to human retinal blood supply.To provide a supportive evidence of retinal ischemia research,some literature concerning rodent models is reviewed and various methods to build the model are summarized,such as elevated intraocular pressure,optic nerve ligation,ligation of vessels,photo-chemistry,endothelin-1 injection and middle cerebral artery occlusion intraluminal suture,etc.Here,the specific protocols,the pathological changes and molecular mechanism of each model are reviewed.

To discuss the distribution of patents' holders for Chinese herbal compounds in treating cardiovascular and cerebrovascular, the patents' holders for Chinese herbal compounds in treating cardiovascular and cerebrovascular were cluster analyzed by means of simple statistics and cluster analysis. Clustering variables were composed of patent applications, patent maintained number, related papers' quantity, etc. Chinese herbal compound patents' holders were divided into four categories according to their different scientific research and patent strength. It is the magic weapon for Chinese herbal compound patents' holders that have scientific research patents' transforming and make coordination of patent protection and scientific innovation.
Biometry ; Cardiovascular Diseases ; drug therapy ; Cerebrovascular Disorders ; drug therapy ; Cluster Analysis ; Drugs, Chinese Herbal ; economics ; therapeutic use ; Herbal Medicine ; economics ; legislation & jurisprudence ; manpower ; statistics & numerical data ; Humans ; Medicine, Chinese Traditional ; economics ; Patents as Topic

Action Potentials ; drug effects ; physiology ; Animals ; Anti-Arrhythmia Agents ; pharmacology ; Female ; Heart Ventricles ; metabolism ; Isoflavones ; pharmacology ; Male ; Microelectrodes ; Myocardium ; metabolism ; Patch-Clamp Techniques ; Potassium Channels, Inwardly Rectifying ; metabolism ; physiology ; Rats ; Ventricular Function ; physiology

Objective To evaluate the colon cleaning efficacy and safety of prucalopride combined with polyethylene glycol electrollytes powder in bowel preparation for colonoscopy examination and treatment under colonoscopy in elderly patients.Methods Elderly patients who prepared for colonoscopy were enrolled from October 2014 to January 2015.They were divided into group A,B and C.Patients of group A only took polyethylene glycol electrolyte powder (137.12 g dissolved in 2 000 mL warm water,stired until completely dissolved),patients of group B took polyethylene glycol electrolyte powder (same usage as group A) combined with prucalopride 2 mg/d for one day,patients of group C took polyethylene glycol electrolyte powder (same usage as group A) combined with prucalopride 2 mg/d for three days.The bowel preparation effects,especially ascending colon and ileocecal junction and cardiovascular adverse effects in all the patients and constipation patients of three groups were compared.Student t test,chisquare test and analysis of variance were performed for statistical analysis.Results A total of 124 elderly patients were divided into group A (64 cases),group B (23 cases) and group C (37 cases).Bowel preparation scores of total colon and ascending colon-ileocecal junction of group A,B,C were 8.34±0.90 and 2.56±0.56,8.96±0.21 and 2.96±0.21,8.86±0.35 and 2.86±0.35,respectively.The cleaning effects in total colon and ascending colon-ileocecal junction of group B were better than those of group A (t=5.52 and 5.15,both P＜0.05).The cleaning effects in total colon and ascending colon-ileocecal junction of groupCwere better than those of group A (t=4.69,3.65,both P＜0.05).There was no statistically significant difference between group B and group C in cleaning effects in total colon and ascending colon-ileocecal junction (both P＞0.05).There were 33,11 and 29 constipation cases in group A,B and C,respectively.The bowel preparation scores for total colon and ascending colon and ileocecal junction of group A,B,C were 7.85±0.94 and 2.24±0.56,8.91±0.30 and 2.91±0.30,8.83±0.38 and 2.83 ± 0.38,respectively.The cleaning effects in total colon and ascending colon-ileocecal junction of group B were better than those of group A (t=6.72 and 5.49,both P＜0.05).The cleaning effects in total colon and ascending colon-ileocecal junction of group C were better than those of group A (t=104.04 and 59.65,both P＜0.05).There was no significant difference between group B and group C in cleaning effects in total colon and ascending colon ileocecal junction (both P＞ 0.05).No obvious cardiovascular adverse events were observed in the patients of three groups.Conclusions The cleaning effects of prucalopride combined with polyethylene glycol electrolytes powder are good for colonoscopy examination in elderly patients,including elderly patients with constipation,especially in ascending colon and ilecocecal junction.No obvious cardiovascular adverse events are observed.

Objective To investigate the application value of multi-slice CT enterography (MSCTE)in diagnosing intestinal tuberculosis (ITB)and Crohn’s disease (CD).Methods MSCTE findings were retrospectively analyzed in 25 patients with ITB and in other 25 patients with CD diagnosed through endoscopy,pathologic examination and clinical follow-up.Statistical analysis was performed to find out the difference in CT findings between the ITB and CD.Results 25 patients with CD included the involved ileum in 23,involved duode-num and jejunum in 8,multiple segmental lesions in 20,asymmetrically thickened intestinal wall in 20,hierarchical reinforcement in 1 9,mesenteric vascular hyperplasia in 20,fibrofatty hyperplasia in 18,peritoneal abscess or fistula in 8,anal fistula in 1,and pseu-do-diverticulum formation in the intestinal wall on the opposite side of the mesentery in 2.Meanwhile,the other 25 patients with ITB included the involved terminal ileum in 25,symmetrically thickened intestinal wall in 23,annular enhancement of lymph nodes in 11,thickened peritoneum and omentum together with distinct enhancement,or intestinal adhesion,or ascites appeared in 15.The CD was more likely to represent multiple segmental lesions,asymmetrically thickened intestinal wall,hierarchical reinforcement,mesenteric vascular hyperplasia,fibrofatty hyperplasia,and peritoneal abscess or fistula formation (P <0.05).Meanwhile,the ITB was more likely to represent the lesion only in ileum,symmetrically thickened intestinal wall,and annular enhancement of lymph nodes (P <0.05).Conclusion MSCTE shows promising clinical application in diagnosis and differential diagnosis of CD and ITB.

Objective To evaluate the effect of dexmedetomidine on noise-induced hearing loss in guinea pigs.Methods Twenty-four adult male guinea pigs,aged 3 months,weighing 400-500 g,were randomly divided into 3 groups (n =8 each) using a random number table:dexmedetomdine group (group D),noise-induced hearing loss group (group N) and dexmedetomidine + noise-induced hearing loss group (group DN).A loading dose of dexmedetomidine 5 μg/kg was infused over 5 min,followed by 135 min of infusion at a rate of 10 μg· kg-1 · h-1.The equal volume of normal saline was infused in group N.Groups N and DN were exposed to noise of 4 kHz center frequency and 118-122 dB SPL for 120 min starting from 20 min of administration.Mean arterial pressure (MAP) and cochlear blood flow (COBF) were recorded before administration and every 5 min during drug administration.The changing rate of COBF was calculated.Arterial blood samples were collected for determination of plasma concentration of noradrenaline (NE) by high performance liquid chromatography at 20 and 140 min of administration.Auditory brainstem response (ABR) threshold was recorded before administration and at 1 and 72 h and 10 days after the end of administration.Results Compared with group N,MAP was significantly decreased,the changing rate of COBF was increased at 5-10 min and 30-140 min of administration,ABR threshold was decreased at 1 and 72 h and 10 days after the end of administration,and the plasma concentration of NE was decreased at 140 min of administration in D + N group (P ＜ 0.05).Conclusion Dexmedetomidine can attenuate noise-induced hearing loss in guinea pigs possibly through inhibiting activation of sympathetic nerves and increasing COBF.

Objective To know the effect of psychological nursing for aged patients with femoral neck fractures when cured by artificila hip replacement. Methods Divided 158 aged patients with femoral neck fractures into the intervention group (84 cases) and control group (68 cases) randomly. Routine nursing cares were used in the control group, while the psychological nursing intervention were used in the intervention group in addition. Compared the degree of postoperative pains and preoperative anxiety between the two groups, and then evaluated the function of limbs. Results The degree of postoperative pains and preoperative anxiety in the interventioni group was better than that of in control group respectively, the condition of limb function was better in the intervention group than in the control group. Conclusions Psychological intervention can promote rehabilitation for aged patients with femoral neck fractures when cured by artificila hip replacement, which can guarantee the satisfactory prognosis.

Animals ; Central Nervous System ; radiation effects ; Humans ; Mice ; Microwaves ; Rats

Adult ; Antineoplastic Agents ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Boronic Acids ; therapeutic use ; Bortezomib ; Humans ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; Pyrazines ; therapeutic use ; Treatment Outcome

Objective To compare the myocardial protection effects of cold blood cardioplegia and cold crystalloid cardioplegia in patients undergoing valve replacement surgery.Methods One hundred adult patients with cardiac function Ⅱ～Ⅲ class undergoing primary elective valve replacement surgery due to rheumatic heart disease were retrospectively analyzed.For patients with cardiac arrest,cold blood cardioplegia was applied to 50 cases(Group B),and cold crystalloid cardioplegia to the others(group C).The process of heart resuscitation,the postoperative need of dopamine,the blood pressure and heart rate,the postoperative level of serum myocardial enzyme,the intensive care unit(ICU) stay after operation were collected and statistically analyzed.All the cardioplegic solution was perfused in a similar manner and topical cooling was employed simultaneously.Results There were less cases in group B than in group C who needed isoprenaline for cardiac resuscitation after clamp removal(P0.05).Conclusion The cold blood cardioplegia and cold crystalloid cardioplegia have similar myocardial protection effects on rheumatic heart disease patients with cardiac function Ⅱ～Ⅲ class undergoing valve replacement surgery.