Animals ; Apoptosis ; Female ; Male ; Nasal Mucosa ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Rats, Sprague-Dawley ; Rhinitis, Allergic, Perennial ; metabolism ; pathology

Objective:To investigate the etiololgy and pathogenesis of cholesterol granuloma of the marillary sinus. Method:Five patients with cholesterol granuloma of the maxillary sinus were analysed retrospectively. Result: The cholesterol granuloma was a particular form of tissue reactions of granulation. The clinical symptoms of the disease was short of specificity. Conclusion; The pathogenesis of cholesterol granuloma includes hyperlipemia, obstruction of airfilled cavity ventilation and impaired drainage. The final diagnosis was based on pathologic examination. The treatment should begin with the intervention and treatment of hyperilpemia. Radical cure can be a-chieved by operation.

Background Streptozotocin (STZ)-induced type 1 diabetic model is an acceptable model and is often used to the study of diabetic retinopathy (DR).However,the model is often established using retinal digest preparation in vitro in albino rats,and therefore it is difficult to evaluate the change of retinal vessels by fundus fluorescein angiography (FFA) in vivo.Recently,pigmented rats are being used as the DR model.But the study on the comparison between albino rat model and pigmented rat model is seldom.Objective This study was to observe and compare the manifestations of FFA and retinal digest preparation in early diabetic pigmented diabetic rat and albino diabetic rat,and to select the right model of DR using FFA.Methods Type 1 diabetic models were induced in 15 six-week-old health male BN rats and 15 six-week-old health male SD rats by the injection of STZ (55 mg/kg) via tail vein.The models were thought to be successful in the rats with the blood glucose level ≥ 16.7 mmol/L.The right eyes of the rats were extracted 6 weeks after injection of STZ.Lens were examined by slit lamp microscope.Retinal vascular changes were examined by fundus photography,FFA and periodic acid Schiff staining of retinal digest preparation.The manifestations of FFA and retinal digest preparation were contrasted between BN rats and SD rats.The number of eyes with lens opacification was compared by Chi-square test and the ratio of vascular endothelial cells and perithelial cells (E/P) was compared between BN rats and SD rats.The use and care of experimental animals complied the Statement of Ethic Committee of Tianjin Medicine University.Results Six weeks after injection of STZ,11 BN rats and 10SD rats were included in this study.The blood levels were (24.73±2.98) mmol/L and (22.36±3.65) mmol/L in BN rats and SD rats,respectively,without significant difference between the 2 types of rats (t =7.873,P＞0.05).Lens opacification occurred in 6 BN rats and in 5 SD rats (P=0.717).FFA showed the clear retinal vascular under the brown background.Evident vessel disorder and fluorescence leakage like background stage of DR were seen in 9 eyes.However,in the SD rats,retinal vessel abnormality could not exhibited owing to the interference of choroid fluorescent light from choroidal vessels and vortex vein.Retinal digest preparation exhibited that unevenness of vessel diameter,decrease of perithelial cells and increase of endothelial cells in both types of rats.The E/P values were 11.50±3.68in the BN rats and 12.86±3.94 in the SD rats,without significant difference between them (t=9.785,P＞0.05).Conclusions The abnormality of fundus vascular morphology can be better displayed in pigmented diabetic rats than albino rats by FFA in vivo.

Objective To investigate the feasibility,safety and clinical efficacy of three-port laparoscopic sleeve gastrectomy (TLSG).Methods The retrospective cross-sectional study was conducted.The clinical data of 104 obese patients who were admitted to the Beijing Friendship Hospital of Capital Medical University between September 2016 and March 2017 were collected.TLSG was performed to all the 104 patients by the same surgical team.The surgical situations,conversion situations (port-site increased or conversion to open surgery),operation time,volume of intraoperative blood loss,surgery-related complications,duration of postoperative hospital stay and follow-up situations were observed.Patients were followed up by Wechat,telephone interview and inpatient examination once at month 3,6,9 and 12 postoperatively and once every year after 1 year postoperatively up to April 2017.Follow-up included weight-loss efficacy and postoperative long-term complications.Measurement data with normal distribution were represented as x±s or average (range).Results All the 104 patients underwent successful TLSG,without port-site increased or conversion to open surgery.Operation time and volume of intraoperative blood loss were (121±25)minutes and (9±6)mL,respectively.There was no severe intraoperative collateral damage.All the 104 patients with complications were cured by symptomatic treatment,including 1 with port-site infection,1 with peritoneal effusions causing secondary infection,3 with improper eating-induced acute delayed gastric emptying,6 with fat liquefaction around port-site and 9 with delay healing of port-site.There was no occurrence of severe complications,such as gastrointestinal bleeding,intra-abdominal bleeding and gastrostoma.Duration of postoperative hospital stay was (2.4±0.8)days.Eighty-two patients were followed up for 3 months (range,3-6 months),including 59 with 3-month follow-up,23 with 6-month follow-up and 22 with under 3-month follow-up.During the follow-up,there was no port-site hernia.Excess weight loss (EWL) was 37％± 11％ in 59 patients with 3-month follow-up and 45％± 13％ in 23 patients with 6-month follow-up.Of 59 patients with 3-month follow-up,14 patients with diabetes mellitus stopped taking antidiabetic drugs,10 of 14 patients had complete remission (CR) of hemoglobin Alc (HbAlc) and 4 of 14 patients had partial remission (PR) of HbAlc.Of 23 patients with 6-month follow-up,6 patients with diabetes mellitus had CR of HbAlc.Of 18 patients with obstructive sleep apnea hypopnea syndrome (OSAHS),4 had 3-month follow-up,including 3 with CR and 1 was improved to mild OSAHS.Other 14 patients were not evaluated due to inadequate follow-up time.Conclusion TLSG for obese patients with specific indications cannot increase operation time and risk,meanwhile,it can reduce port-site,with a good cosmetic effect.

Objective To determine the molecular characteristics of predominant Salmonella typhi and Salmonella paratyphi A strains prevalent in Hangzhou area from 2002 to 2008.Methods Pulse field gel electrophoresis (PFGE),multi-locus variable-number tandem repeat analysis (MLVA) and multi-locus sequence typing (MLST) were applied for typing as well as analysis of the molecular characteristics of 31 S.typhi isolates and 404 S.paratyphi A isolates from Hangzhou area during 2002 to 2008.Results The 404 S.paratyphi A isolates could be divided into six PFGE types (P1-P6).99.0％ of the S.paratyphi A isolates (400/404) belonged to the same one clone family (P1 and P2 types),in which P1 strains occupied 93.3％ (373/400) of the isolates.The 31 S.typhi isolates displayed a high diversity,which could be classified into 14 PFGE types,28 MLVA types with 90.3％ resolving power and 3 MLST types.The S.typhi strains prevalent in Hangzhou area were similar to those in Southeast Asia but different from those in Europe.The variable number tandem repeat (VNTR) sites with high polymorphism,TR1,TR2 and Sal02,could be used to the markers for diagnosis of S.typhi isolates in the area.The MLST types of 31 S.typhi isolates included all the three types currently found in the world but the ST2 type of S.typhi strains was predominant (23/31,74.2％).Conclusion The paratyphoid A prevalence in Hangzhou area in the recent years is caused by infection of the same clone family of S.paratyphi A whereas the S.typhi strains prevalent in the area display a high diversity.

OBJECTIVETo observe the improvement of thyroid function and changes of Akt, p-Akt, mammalian target of rapamycin (mTOR), and para-mTOR (p-mTOR) expression in Graves' disease (GD) mice after intervened by Jiakangning Capsule (JC), and to explore possible mechanism for JC in treating GD.

METHODSGD model was established by immunizing female BALB/c mice with thyroid stimulating hormone receptor A subunit (Ad-TSHRα-289). Totally 70 successfully modeled mice were divided into the model group (n =20), the JC intervened group (n =25), the Methimazole Tablet intervened group (n =25) according to random digit table. A normal control group (n =15) and a vehicle control group (n =20, injected with Ad-null) were also set up. Mice in the JC intervened group were administered with JC suspension at the daily dose of 1. 5 g/kg by gastrogavag. Mice in the Methimazole intervened group were administered with Methimazole suspension at the daily dose of 2. 5 g/kg by gastrogavage. Equal volume of normal saline was administered to mice in the rest 3 groups by gastrogavage. All intervention lasted for 5 weeks. Six mice were selected from each group to observe pathological changes of thyroid tissues. Serum levels of thyroxine (T4), triiodothyronine (T3), thyroid stimulating hormone (TSH), and thyrotropin receptor antibody (TRAb) were analyzed by radioimmunoassay. Expression levels of Akt, p-Akt, mTOR, and p-mTOR in thyroid tissues were etermined by Western blot.

RESULTS(1) The thyroid gland in the GD model group showed proliferative changes, with enlarged follicles of various sizes. Interstitial stroma was filled with blood vessels. Structures of thyroid tissues in the JC intervened group and the Methimazole intervened group were significantly restored, and follicular hyperplasia was relieved. (2) Compared with the normal control group and the vehicle control group, levels of TRAb, T4, and T3 increased; ratios of P-Akt/β-actin, p-Akt/Akt, p-mTOR/β-actin, and p-mTOR/mTOR also increased in the model group (all P <0. 01). Compared with the model group, levels of TRAb, T4, and T3 decreased in the JC intervened group and the Methimazole intervened group (P <0. 01); ratios of p-mTOR/β-actin and pmTOR/mTOR decreased in the JC intervened group (P <0.01); ratios of P-Akt/β-actin, p-Akt/Akt, p-mTOR/β-actin, and p-mTOR/mTOR decreased in the Methimazole intervened group (P <0. 05, P <0. 01). Conclusion JC could reduce thyroid hormonc levels of GD mice and lower expression levels of mTOR, and its mechanism for improving thyroid function of GD mice might be associated with this influence.

Actins ; Animals ; Capsules ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Graves Disease ; drug therapy ; pathology ; Methimazole ; Mice ; Mice, Inbred BALB C ; Receptors, Thyrotropin ; Signal Transduction ; TOR Serine-Threonine Kinases ; Thyrotropin ; Thyroxine ; Triiodothyronine

Tetradrine-tashionone II(A)-PLGA composite microspheres were prepared by the SPG membrane emulsification method, and the characterization of tetradrine-tashionone II(A) -PLGA composite microspheres were studied in this experiment. The results of IR, DSC and XRD showed that teradrine and tashionone II(A) in composite microspheres were highly dispersed in the PLGA with amorphous form. The results of tetradrine-tashionone II(A) -PLGA composite microspheres in vitro release experiment showed that the cumulative release amounts of tetradrine and tashionone II(A) were 6.44% and 3.60% in 24 h, and the cumulative release amounts of tetradrine and tashionone II(A) were 89.02% and 21.24% in 17 d. The process of drug in vitro release accorded with the model of Riger-Peppas. Tetradrine-tashionone II(A) -PLGA composite microspheres had slow-release effect, and it could significantly reduce the burst release, prolong the therapeutic time, decrease the dosage of drugs and provide a new idea and method to prepare traditional Chinese medicine compound.
Benzofurans ; chemistry ; Benzylisoquinolines ; chemistry ; Drug Carriers ; chemistry ; Drug Compounding ; instrumentation ; methods ; Drugs, Chinese Herbal ; chemistry ; Kinetics ; Lactic Acid ; chemistry ; Microspheres ; Particle Size ; Polyglycolic Acid ; chemistry

Objective To study the immunophenotypic features of NK/T cell lymphoma in children and its association with Epstein-Barr virus (EBV) infection. Methods Five cases of children′s NK/T cell lymphoma were studied. CD45RO, CD3?, CD56, CD20, TIA-1 and granzyme B were detected by immunohistochemistry staining for investigating immunophenotype. The expression of EBV-latent membrane protein (LMP-1) were detected by immunohistochemistry. EBV-encoded RNA (EBER1/2) were detected by in situ hybridization (ISH). Results CD45RO, CD3?, TIA-1 and granzyme B were positive in 5 cases, CD56 was positive in 2 cases, while CD20 negative in 5 cases.EBER1/2 positive in 4 cases and LMP-1 positive in 3 cases.Conclusions NK/T cell lymphoma in children is strong associated with EBV infection,and EBV infection may play an important role in the pathogenesis of children NK/T cell lymphoma.

Objective To explore the dynamic spiral CT findings of adrenal ganglioneuromas and to evaluate its clinical value.Methods All 7 cases patients with adrenal ganglioneuromas confirmed by surgical pathology underwent spiral CT plain scanning and two phases dynamic enhancement scanning before operation.The CT images were reviewed and analysed retrospectively in comparison with surgical and pathological results.Results Six of 7 lesions were located in the right adrenal gland,1 in the left.The diameter of the tumors was 3.7—7.5cm,with a mean diameter of 4.6cm.The CT value of the plain scans, AP phases and PVP phases was 16.2—31.7 HU(with a mean value of 24.3 HU),20.9—36.6 HU(with a mean value of 30.2 HU),and 27.4—45.5 HU(with a mean value of 36.0 HU),respectively.The masses were well defined and showed a tendency of wedging into the space between the adjacent organs and structures and encasing the large vessels such as IV,but didn't compress or occlude them.Conclusion The dynamic SCT features of adrenal ganglioneuromas were obvious,dynamic SCT scans could suggest the diagnose.

Objective To investigate the value and clinical significance of congenital heart diseases (CHD)detection in twins.Methods A total of 1103 twins were included in this study(127 twins were at high risk for CHD).The fetal hearts were scanned by ultrasound using Yagel's heart examination method. Autopsies were done when the pregnancy was terminated.And blood samples from fetal hearts or umbilical veins were used to evaluate fetal chromosomes.A close follow-up was conducted for normal heart cases and another heart examination was done within three months after birth.Results(1)12 twins(1.09%,12/ 1103)had CHD.Among them,4 cases were from the high risk for CHD group(33.3%,4/12),and 8 cases(66.7%,8/12)were from the low risk pregnancy group.(2)Two twins suffered from the same CHD (one pair were both TOF,and the other pair were both rhabdomyoma).One pair of twins had different abnormalities(one baby was TOF,and the other was duodenal atresia with a normal heart).All three pairs of twins chose termination and autopsies were conducted.Unanimous conclusions between prenatal ultrasound and autopsy were obtained.Nine twins were CHD in one baby and a normal heart in the other baby.Seven of them had the same conclusion after delivery.(3)Two twins with CHD were found with fetal abnormal chromosome.(4)1091 cases were not found having any abnormality,however,one fetus from one twin pair was diagnosed with ventricular septal defect(VSD)with abnormal chromosome after birth,and one fetus from another twin pair had patency of ductus arteriosus after birth.(5)The sensitivity of Yagel's heart examination was 82.4% and specificity was 100% in twins.Conclusion Yagel's heart examination is an effective and time-saving method to scan fetal hearts in twins.