Objective To observe the effect of Minocycline on RP process of retinal pigmentarydegeneration rd mice[C3H/HeN(Pde6brd-/rd-)]. Methods 40 rd mice were divided into ten groupsrandomly:5 experimental groups and 5 control groups,4 rd mice in each group.The experimental groupreceived intraperitoneal injection of minocycline 22.5mg/kg while the control group received saline 10ml/k2 every day from the posmatal day 1(P1).Mice were sacrificed at P1,P7,P14,P21 and P28respectively.Eyeballs were enucleated to carry out histology observation and apoptosis cell detection.Meanwhile,to statistically analyze the number of retinal photoreceptor cells,the thickness of outer nuclearlayer(ONL)and the number of apoptosis cells. Results (1)Photoreceptor cell began to apoptosis onP7,peaked on P14,and totally disappeared on P28.(2)No statistically significant differences were foundof the number of photoreceptor cells and the thickness of ONL on P7 between the experimental group andthe control group.(3)The number of photoreceptor cells and the thickness of ONL in the experimentalwere more than that in the control group at P14,P21,P28 respectively,the differences are statisticallysignificant(P＜0.05).(4)The apoptotic cells on ONL were less in the experimental group than that in thecontrol group on P7 and P14 respectively,the difference are statistically significant(P＜0.05).Conclusions Minocycline appears to protect photoreceptor cell from apoptosis in the early stage of theretinal degeneration mice,but it may not completely prevent RP from occurrence.

Objective:To study the effect of naoxintong capsules combined with nerve growth factor on the serum levels of interleukin-6 (IL-6),matrix metalloproteinase-9 (MMP-9) and S100B of patients with hypertensive intracerebral hemorrhage.Methods:88 patients with hypertensive intracerebral hemorrhage who were treated in our hospital from August 2015 to July 2016 were selected and randomly divided into the observation group and the control group The patients in the control group were treated with nerve growth factor,while the patients in the observation group were treated with naoxintong capsules combined with nerve growth factor.Then the clinical efficacy,GCS,GOS score,serum levels ofIL-6,MMP-9 and S100B were observed and compared between the two groups.Results:After treatment,the total effective rate in the observation group was significantly higher than that the control group (P＜0.05).After treatment,the GCS and GOS scores of the two groups were significantly higher than before,and the GCS and GOS of the observation group were higher than those of the control group (P＜0.05).After treatment,the serum levels of IL-6,MMP-9 and S100B in the two groups were significantly lower than before,and the observation group were lower than those of the control group (P＜0.05).There was adverse reactions in the two groups.Conclusion:Naoxintong capsule combined with nerve growth factor can reduce the serum levels of IL-6,MMP-9 and S100B in patients with hypertensive intracerebral hemorrhage,with obvious clinical curative effect and high safety.

Adult ; Cough ; etiology ; Female ; Humans ; Larynx ; Pharyngitis ; complications ; parasitology ; Pharynx ; Pruritus ; etiology

Objective To establish a benign esophageal stricture model and observe the effect of 32P radioactive isotopes on benign esophageal stricture scarring with intracavitary irradiation so as to provide experimental evidence for inhibiting scar hyperplasia and preventing esophageal restenosis after endoscopic dilation for benign esophageal stricture.Methods Benign esophageal stricture models were established in 18 healthy adult rabbits by annular incision and anastomosis.Then the rabbits were randomly divided into control group,hormone group and irradiation group,with six rabbits in each group.On day 2 after surgery,we measured inner diameter of the anastomotic stoma;then the control group received saline intervention,the hormone group was given dexamethasone,and the irradiation group was given 32P radioactive isotopes.The rabbits were observed for two weeks for their general condition and weight.After the intervention,we measured inner diameter of the anastomotic stoma.Liver functions (ALT and AST) were tested again before modeling and after intervention.Then the rabbits were put to death and had tissue in the esophageal stricture area removed for pathological examination and esophageal HE staining.We determined hydroxyproline (HYP) content of esophageal tissue around the anastomotic stoma.Restlts Benign esophageal stricture model was established successfully.After 2 weeks,the rabbits' appetite was obviously diminished in control group and relatively poor in hormone group;obviously improved in irradiation group.The rabbits' weight increased in radiation group compared with the other two groups (P＜0.05).The esophageal inner diameter in irradiation group widened obviously compared with the other two groups (P ＜ 0.05).In irradiation group,the number of fibroblasts decreased obviously,collagen fiber and granulation tissue were not obvious;HYP content was lower than that in the other two groups,and was close to that in a normal esophagus (P＞0.05).ALT and AST did not differ before and after intervention in all groups (P＞0.05).Conclusion ① We can establish benign esophageal stricture model successfully through the surgery.② 32Pradioactive isotopes radiation therapy can be used to prevent early scar formation in esophageal benign stricture,and is superior to dexamethasone therapy.

Objective:To investigate the effect of pertuzumab in the treatment of human epidermal growth factor receptor 2 (HER2)-positive breast cancer patients and its effect on the expression of serum nectin-4 and thymidine kinase 1 (TK-1).Methods:110 HER2 positive breast cancer patients treated in Longfu Hospital of Beijing from June 2014 to December 2016 were selected and divided into observation group and control group according to treatment method, 55 cases in each group.The control group was given docetaxel combined with platinum (TP) neoadjuvant chemotherapy, and the observation group was given TP neoadjuvant chemotherapy combined with paltuzumab. After 18 weeks of treatment, the therapeutic effect, serum tumor markers [carbohydrate antigen (CA), CA153 and CA199], immune function, levels of nectin-4 and TK-1 and adverse reactions were observed.Results:The total effective rate of the observation group was 83.64%(46/55), which was significantly higher than that of the control group 58.18%(32/55), with statistically significant difference ( P<0.05). After treatment, the levels of CA125, CA153 and CA199 in the two groups were decreased, and the difference was significant in the observation group ( P<0.05); after treatment, the levels of CD3 + , CD4 + , CD4 + /CD8 + in the two groups were increased, while the levels of CD8 + was decreased, with no significant difference between the two groups ( P>0.05). After treatment, the levels of serum nectin-4 and TK-1 decreased in both groups, and the the decrease in the observation group was significant ( P<0.05). There was no significant difference in digestive system, white blood cell count and cardiac toxicity between the two groups ( P>0.05). Two years follow-up showed that the mortality of the observation group was 3.64%(2/55), and that of the control group was 10.91%(6/55). The mortality of the group was significantly lower than that of the control group ( P<0.05). Conclusions:Pertuzumab combined with TP neoadjuvant chemotherapy has better effect on HER2 positive breast cancer patients, it can effectively inhibit the growth of tumor tissues, reduce the level of tumor markers and the level of nectin-4 and TK-1, and has less influence on the immune response of patients with fewer adverse reactions and lower mortality rate.

Objective To identify whether soybean isoflavones plays a role in the prevention of chronicallograft nephropathy(CAN)in rats.Methods Forty-five male Lewis rats as receptors were randomly divided into 3 groups,receiving a diet with protein from high isoflavone soy protein fraction (HIS),low isoflavone soy protein fraction(LIS)or casein(CAS)starting one week before renal transplants from fisher donors,and continuing throughout the study.Serial serum and urine samples were collected at the beginning of the study,and at 4th,12th and 24th week.All rats were killed and the grafts were harvested in the 24th week.The functional and histopathogical changes of renal grafts were evaluated.Results In HIS group,arteria caudilis systolic blood pressure(SBP)value,24 h uri- nary protein(Upro)and serum creatitine(Cr)concentrations were significantly lower than those in LIS and CAS groups(all P

Humans ; Tinnitus ; therapy ; Treatment Outcome

Objective To investigate the effect of oral lidocaine plasmagel on the postoperative odynophagia in patients receiving trans-oesophageal echocardiography (TEE) examination for cardiac surgery.Methods Sixty patients for cardiac surgery were divided randomly into the control group (C group) and the oral lidocaine plasmagel group (L group) with 30 cases in each group.Patients in L group received 2％ oral lidocaine plasmagel 20 ml before anesthesia,while C group did not.The incidence of postoperative odynophagia was compared between two groups.Results Postoperative odynophagia pain score were significantly higher in C Group than that in L Group.Conclusions Oral lidocaine plasmagel can alleviate the postoperative odynophagia in patients receiving trans-oesophageal echocardiography examination for cardiac surgery.

Objective To investigate the clinical efficacy of Asian proximal femur intramedullary nail antirotation (PFNA-Ⅱ) in the treatment of intertrochanteric fractures in elderly people.Methods From July 2009 to December 2011,127 elderly patients with intertrochanteric fracture were treated by PFNA-Ⅱ.They were 49 cases of male and 78 cases of female,with a mean age of (74.3±15) years.127 elderly patients were classified by modified Evans:type Ⅰ (n=37),typeⅡ (n=42),type Ⅲ (n=26),type Ⅳ (n=15),type V (n=7).We made the statistics on the intraoperative bleeding volume,operation time,incision length,X-light exposure times,and made evaluation of the efficacy of postoperative follow-up and complications by the Harris hip score.Results The average operation time was 42.5 min (35-90) min,the average intraoperative bleeding volume was 107.5 ml (65-410)ml,X-light exposure times were (2.5±1.4) times (2-4) times and the average total incision length was (6.5± 1.8) cm (5.5-11.0) cm.No serious complications or original complications were found during perioperative period.All patients received a 6 to 24 month follow-up (mean 12.5 months in average).The X ray examination showed that the average neck shaft angle was (134±13)° (120°-150°).The average fracture healing time was (14.0±2.5) weeks (11 to 19 weeks).The average hip Harris score was (86.5± 19.5) points (65-100 points).Among them,29 cases (22.83％) were excellent,76 cases (59.8％) were good,20 cases (15.7％) were moderate,2 cases (1.6％) were poor.Totally,excellent and good rate was 82.7％.No complications including hip varus deformity,screw cut-out and femoral shaft fractures were found.There were 14 patients (11.0％) with thigh pain and 5 patients (3.9％) with inner thigh pain.The heavier pain in 4 patients were improved by physical therapy.Conclusions Asian PFNA-Ⅱ has advantages including simple operation,fewer complications,and better clinical efficacy for the treatment of intertrochanteric fractures,but its longterm efficacy and complications still need a large sample and multi-center observation.

BACKGROUND:Few cases of acute cerebral embolism were treated by mechanical thrombectomy al over the world. However, there were few cases currently treated by mechanical thrombectomy using Penumbra system. It is an unclear understanding of effects on regional cerebral blood vessels using this kind of surgery.
OBJECTIVE:To describe effects of numerical simulation on regional cerebral blood vessels of an acute cerebral embolism patient by mechanical embolectomy using Penumbra system.
METHODS:A 77-year-old woman suffering from acute cerebral embolism of left middle cerebral artery was selected. Various raw data were col ected in emergency of digital subtraction angiography, then mechanical thrombectomy using Penumbra system was carried out successful y. After these raw data were processed into dimensional numerical models of two kinds of embolectomy methods (“suction bolt method from near to far”and“suction bolt method from far to near”), and then finite element analysis was carried out.
RESULTS AND CONCLUSION:Model establishment and finite element analysis were successful y conducted. Compared with“suction bolt method from near to far”,“suction bolt method from far to near”models had smal er velocity of flow in catheter and smal er wal shear stress of thrombus (P<0.01), and had larger wal shear stress of blood vessel wal , deformation of blood vessel wal (P<0.01) and deformation of thrombus (P<0.05). Results suggested that finite element analysis of mechanical embolectomy using Penumbra system can help physicians to involve in a clear understanding of their impacts on cerebral blood vessels of patients. As a research method, it is worth to continue to explore in the future.