Discuss the pathogenesis and treatment strategy of idiopathic thrombocytopenic purpura from the view of insidious pathogenic factors.The invasion,remission and recurrence of ITP implicated the theory model of insidious pathogenic factors,and it applied new thread for syndrome differentiation and treatment.

OBJECTIVE To evaluate the effectiveness of ~(125)I seeds brachytherapy in advanced head and neck malignant tumor.METHODS Twelve patients with post-radiotherapy recurred laryngeal cancer with bilateral cervical lymph node metastasis, tongue cancer with bilateral cervical lymph node metastasis or recurred maxillary sinus cancer and so on were operated radically,and ~(125)I seeds were implanted in wound area during operation.RESULTS With a follow-up of 24 to 32 months,no tumor recurred in 11 patients,and only one patient with tongue cancer recurred at 6 month after operation.No local infection, acute radioactive lesion,vessel broken or seeds migration happened.CONCLUSION The ~(125)I brachytherapy can be used as one of the comprehensive treatment method in advanced head and neck malignant tumors,especially in the recurred tumors after operation or radiotherapy or in the cancer which can not be radically removed.It's also an effective method to improve local control in the subset of patients with doubtful positive margins.

Objective To investigate the correlation of cochlear injury and expressions of Bcl-2 and Bax in the cochlea of diabetic rats.Methods Thirty five Wistar rats were randomly divided into diabetic group(n=25) and control group(n=10).Diabetic deafness was induced in rats by intraperitoneal injection of streptozotocin,while the rats in normal group were injected with normal saline.Immunohistochemical staining was used to detect the protein levels of Bcl-2 and Bax in the cochlea after 3 months.Results No significantly morphological change in cochlea of diabetic rats was found.The Bcl-2 levels in stria vascularis in diabetic group and control group were 135.32?21.69 and 45.32?9.08,respectively,there was significant difference(P

A method for the quantitative monitoring of sulfadiazine (SD) residues in pork was established by molecular imprinted column coupling with high performance liquid chromatography (HPLC).The molecular imprinted column was selected as an extraction device.To obtain the optimum extraction efficiency,several parameters related to the molecular imprinted column,including column solvent,flow-rate,eluent of the sample matrix and eluent volume,were investigated.The sample solution was directly injected into the device for the extraction after simple extraction.Under the optimum conditions,the relative standard deviations (RSD) was ≤6.1％ and the recoveries for SD were higher than 75.6％.In comparison with the AL-SPE column,the MIP-SPE column had good reusability and extraction efficiency.This method was successfully applied to the determination snlfadiazine residues in pork.

Background Macular edema is one of the serious complications of central retinal vein occlusion (CRVO),and the present therapies are laser coagulation and intravitreal injection of anti-vascular endothelial growth factor(VEGF)drugs.Conbercept is humanized-monoclonal VEGF antibody and used for the treatment of retinal vascular diseases.However,fewer studies were focused on its application in macular edema secondary to CRVO.Objective The aim of this study was to compare the effectiveness and safety of conbercept with triamcinolone acetonide(TA)by intravitreal injections for macular edema secondary to CRVO. Methods A non-randomized controlled study was carried out under the approval of the informed consent of patients.Sixty eyes of 60 patients with macular edema secondary to CRVO were included in Weifang Yidu Central Hospital from March 2012 to August 2013.The eyes were divided into the conbercept group and TA group with 30 for each group.Conbercept and TA of 0.05 ml were intravitreally injected in different groups,and the best corrected visual acuity(BCVA),central macular thickness(CMT)measured by OCT,intraocular pressure(IOP)and relavant complications were examined before injection and 1 week,1 month,3 months and 6 months after injection.The treatment outcomes were compared intergrouply and along with time. Results The BCVA was evidently better in 1 week,1 month,3 months and 6 months after injection than that before injection both in conbercept group and TA group(all at P＜0.01),and the BCVA of TA group was better than that of conbercept group 1 week after injection(P＜0.05).The CMT values of Conbercept were(572.00± 100.01),(325.12±91.55),(280.00±92.37),(258.65 ±88.65),(300.00±87.64)μm,and those of TA group were(570.00± 102.21),(345.12±89.31),(290.00±80.27),(309.65 ±84.13)and(303.00±90.59)μm,and CMT value after injection was significantly lower in 1 week,1 month,3 months and 6 months after injection than that before injection both in the conbercept group and the TA group(all at P＜0.05),and CMT value was evidently reduced in the conbercept group compared with the TA group 3 months after injection(P＜0.05).The IOP was(15.20±3.52),(21.20±3.80),(26.40±4.00),(23.60±3.73)and(21.50±3.27)mmHg in the TA group before injection and 1 week,1 month,3 months and 6 months after injection,showing significnatly elavation after injection(all at P＜0.05),and the IOP at different time points was higher in the TA group than that in the conbercept group(all at P＜0.05).However,there was no considerable change of IOP before and after injection in conbercept group(all at P＜0.05). Conelutions Both conbercept and TA are effective for macular edema secondary to CRVO by intravtreal injection.Compared with TA,conbercept is much safer because of less risk of IOP rising after intravtreal injection.

Objective:Mutations in the CX(connexin)26 gene (GJB2), encoding the gap\|junction protein. Connexin 26, have been shown to be the major cause of non\|syndromic recessive deafness. Among these mutations, the CX 26 cDNA (35delG) mutation accounts for the majority of this kind of deafness are European and America, but it does not present in China. Therefore, we intend to investigate the mutation hot spot of connexin 26 in China deafness populations. Mathods:The mutation of 233delC was detected by the technique of PCR\|RFLP and analyzed by directly sequencing protocols in 219 patients with kinds of deafness and 50 individuals with normal hearing. Results: The frequency of the 233delC mutation was 47/219(21.5%) in the Chinese population. No mutation was found in group with normal hearing and dominant nonsyndromic hearing loss. The mutation frequency for 233delC was 4 in 15 patients (26.7%) with genetic prelingual deafness and 10 in 50 patients(20.0%) with drug\|deafness. Conclusion: The 233delC mutaion had a high frequency in Chinese population with hearing loss, especially congenital deafness. Our data indicated that specific combinations of GJB2 mutation exist in different populations.

AIM: To investigate the effects of platelet-derived growth factor BB (PDGF-BB) on vasoconstriction of the vascular vessels. METHODS: The contractile effects of PDGF-BB at different concentrations on the rat thoracic aortic rings and the effects of verapimil, indomerthacin, phentolamine and propranolol on the response of the thoracic aortic rings were observed by using the technique of vascular perfusion in vitro, and norepinephrine was used to severe as control. RESULTS: PDGF-BB showed a remarkable contractile effect on the thoracic aorta rings of rats in a dose-dependent manner, more potent than norepinephrine at the same molar concentration. Verapimil and propranolol inhibited the contractile effect of PDGF-BB on the rat thoracic rings, but the effect of indomerthacin and phentolamine on the vasoconstriction of PDGF-BB was not observed. CONCLUSION: PDGF-BB significantly contracts the thoracic aorta rings of rats in dose-dependent and non-endothelium-dependent manners. Verapimil and propranolol inhibits the contractile effect of PDGF-BB on the rat thoracic rings.

14 aged patients received radiofrequency current ablation(RFCA)to treat drug-refractory tachycardia. The success rate was 97%(13/14).In conjunction with the charcteristicaof aged patients often with long clinical history and apt to be complicated,the paper especially discussed the distinctive feature of application of RFCA to aged patients.

Objective:To investigate the safety and efficacy of using bio-artificial dura mater to wrap around skeletonized hepatic artery during pancreatoduodenectomy in the prevention of gastroduodenal artery(GDA)stump related delayed bleeding.Methods:Clinical data were collected from 45 patients undergoing the bio-artificial dura mater wrapping skeletonized hepatic artery during pancreatoduodenectomy from Oct 2022 to Apr 2023 at Department of General Surgery, the Affiliated Hospital of Xuzhou Medical University.Results:Among the 45 patients, the bio-artificial dura mater was used to completely wrap the GDA stump and part of the common hepatic artery and the proper hepatic artery. The mean operative time was (308.1±93.1) min, the mean wrapping artery time was (18.7±7.5) min. Clinically relevant postoperative grade B pancreatic fistula (CR-POPF) occurred in 6 cases (13.3%), and intra-abdominal infection in 2 cases (4.4%).The rate of bile leakage was 2.2%.There were no second surgical operation, nor perioperative death. Postoperative delayed bleeding occurred in one case (2.2%) on the right hepatic artery branch near the hepatic portal. No pseudoaneurysm formation, nor bleeding occurring in any of the arteries wrapped by bio-artificial dura mater (including the GDA stump) after PD. There were no postoperative hepatic artery wrapping complications, such as hepatic artery stenosis, mesh-associated fluid accumulation and infection.Conclusion:Bio-artificial dura mater wrapping skeletonized hepatic artery technique in the process of pancreaticoduodenectomy can reduce the risk of delayed bleeding due to erosion of GDA stumps in case of post-PD pancreatic fistula.

Objective This study was to evaluate the relative applicability of serum cystatin C(Cys C)-based formulas and serum creatinine-based formulas for renal glomerular filtration rate(GFR) of Chinese children with chronic kidney disease(CKD).Methods Six hundred and nine Chinese CKD patients of less than 18 years old were enrolled from January 2011 to October 2016 in Shengjing Hospital of China Medical University.The value for estimated GFR (eGFR) was derived from using the 11 formulas,and 99mTc-DTPA renal dynamic imaging was the golden standard of standard GFR(sGFR).SPSS 22.0 statistical software was used to compare the accuracy of each assessment formula and the correlation between GFR markers(Cys C, β2-MG) and sGFR.Results A total of 609 children were enrolled,including 332 patients in CKD stage 1 (211 males and 121 females),165 patients in CKD stage 2(99 males and 66 females),70 patients in CKD stage 3(43 males and 27 females),22 patients in CKD stage 4(13 males and 9 females),and 20 patients in CKD stage 5(16 males and 4 females).All of the formulas either overestimate or underestimate GFR in chil-dren with CKD. In contrast with other formulas,CKD-EPI formula and Filler formula performed better regardless of gender and age difference.Serum β2-MG and serum Cys C all showed a negative relationship with sGFR(respectively r= -0.478 and r= -0.585,P<0.01).Conclusion CKD-EPI formula and Filler formula provide the better approximation to sGFR than other formulas in Chinese children with CKD.Howev-er,we need to try our best to enroll more patients to develop a more accurate GFR estimation formula in Chinese children.