Objective To study the expression and cellular localization of STAT3 and SOCS-3 in the motor neurons of normal rat spinal cord. Methods Immunocytochemistry and morphometry methods were used in the present study. Results STAT3 immunocytochemical staining was mainly distributed in the cytoplasm of the motor neurons of the ventral horns, SOCS-3 immunoreactive products were extensively distributed in the neurons of the ventral and dorsal horns, glia and fibers of the spinal cord. In the ventral horn, SOCS-3 immunoreactivity was found in the nuclei and/or cytoplasm of the motor neurons.Conclusions STAT3 and SOCS-3 are extensively distributed in the normal adult rat spinal cord and SOCS-3 is existence in the forms of nuclear or cytoplasmic protein.

Objective The objective of this study was to investigate the expression and clinical significance of transcription factors Sp1 and Survivin in breast cancer and to further analyze their correlation.Methods Seventy cases of breast cancer patients were diagnosed as breast cancer from June 2013 to June 2015.The expression of Sp1 and Survivin in 70 cases of breast cancer and 20 cases of adjacent normal tissues were detected by immunohistochemical staining.The relationship was detected between the protein expression and the clinicopathological parameters of breast cancer.Results The positive rates of Sp1 and Survivin in breast cancer were 71.43% and 78.57%,respectively.The positive rates of Sp1 and Survivin were 30% and 10% in adjacent normal breast tissues.They showed a significant difference(P<0.05).In breast cancer tissues,there were no differences in the lymph node metastasis,TNM stage and vessel infiltration(P>0.05).There were also no differences in the age,tumor size and histological grade of patients with breast cancer(P>0.05).In breast cancer tissues,there was a significant positive correlation between Sp1 and Survivin expression(r=0.517,P<0.01).Conclusion The transcription factors Sp1 and Survivin are closely related to the pathogenesis of breast cancer,which may serve as an adjunctive index for the diagnosis of breast cancer.It has certain guiding value for clinical diagnosis,treatment and prognosis of breast cancer.

Middle cerebral artery occlusion model with suture-occluded method in rats is widely regarded as the standard animal model of focal cerebral ischemia .In the process of preparation , it is easy to be influenced by multiple factors;among them the successful operation plays a key role .This article summarized from several aspects , such as the anatomic locations of the major arteries in the rat ’ s neck , where to perform the incision , which side to perform the operation and where to insert the suture .

Objective To investigate the effect of recombinant intestinal trefoil factor(rITF)on the intestinal mucosa of acute necrotizing pancreatitis(ANP)rats and explore the mechanism.Methods 60 male SD rats were randomly divided into control group(n=20),ANP group(n=20),rITF group(n=20).ANP was induced by retrograde injection of 5%sodium taurocholate(100μl/100 g)into biliopancreatic duct.Rats in rITF group were injected with rITF(0.5 mg/100 g)before and after ANP induction.The rats in ANP group and control group received same amount of normal sailne.Each group were sacrificed 12 h or 24 h later.respectively.Blood sample was taken to determine the serum level of amylase.Terminal ileum was resected to observe the pathologic changes;immunohistochemistry method was applied to detect the activity of NF-κB;the expression of TNF-α mRNA,ICAM-1 mRNA in intestinal mucosa was measured by RT-PCR.Results Intestinal injury score of ANP group was higher than that ofcontrol group(P＜0.05),intestinal injury score of ANP 12 h group was higher than that of rITF 12 h group(P＜0.05),but there was no significant difference between ANP 24 h group and rITF 24 h group.The number of positive NF-κB cells was 26±4,55±8,49±4,respectively;the relatively expression of TNF-α mRNA in terminal ileum was 0.050±0.005,1.040±0.031 and 0.792±0.0256,respectively;the relatively expression of ICAM-1 mBNA was 0.045±0.010,0.795±0.037 and 0.400±0.031,respectively,in control group,ANP group and rITF 12 h group.The corresponding values in the ANP group were significantly increased compared with those values in the control group (P＜0.05 or P＜0.01).Conclusions rITF may protect the intestinal mucosa.the mechanism may include inhibit NF-κB activation,down-regulate TiNF-α mBNA,ICAM-1 mRNA expression.

Humans ; Infant, Newborn ; Lupus Erythematosus, Systemic ; blood ; Male

Objective To study the basic expression and cellular localization of SOCS-3 in normal rat retina. Methods Neuro-immunocytochemistry techniques were used. Results SOCS-3 positive cells were widely distributed in the ganglion cell layer (GCL) and inner nuclear layer (INL) in the retina. In the GCL, SOCS-3 immunoreactivity was mainly in the neuclei of the ganglion cells.Some of the SOCS-3 positive cells in INL were M?ller cells.Conclusion Basal expression of SOCS-3 is widely present in the neurons and glia in normal adult rat retina and mainly in the form of nuclear protein.

Curcumin is the main active component in turmeric, which possesses many pharmacologic effects, including anti-in-flammatory, antioxidant, anti-tumor, anti-atherosclerosis, liver and kidney protection and so on. However, due to its poor bioavail-ability, its clinical application is limited. Therefore, the methods for improving the bioavailability of curcumin were reviewed by refer-ring to a large number of literatures. The bioavailability of curcumin can be improved by different administration routes and various dos-age forms. The review provides theoretical basis and research ideas for the development of new drugs.

OBJECTIVE: To investigate the relation between the expression of tPA, MMP-2, MMP-9 and AEG-1 in the human brain tissue and the ethanol concentration under the acute alcohol poison, and to analyze the role of alcohol and trauma in the mechanism of death of subarachnoid hemorrhage. METHODS: Fifteen real cases were collected in this study. The brain tissues were researched by histological examination and the concentration of ethanol in heart blood were detected. The tPA, MMP-2, MMP-9 and AEG-1 in brainstem, brain and cerebellum were observed respectively by immunohistochemistry. RESULTS: In alcohol poisoning groups with or without trauma, the acute alcohol toxicity resulted in the swelling of brain tissues. The tPA, MMP-2, MMP-9 and AEG-1 of brainstem, brain and cerebellum showed high expression in alcohol victims, and the tPA in cerebellum showed no difference. The expression of the MMP-2, MMP-9 and AEG-1 showed good relation with the ethanol concentration in blood (P < 0.05, r > 0.6). CONCLUSION The expressions of tPA, MMP-2, MMP-9 and AEG-1 are significant higher in alcohol victims, and expressions of MMP-2 and MMP-9 and AEG-1 have positive correlation with the alcohol concentration. The alcohol has acute toxicity to brain cells.
Alcohol Drinking/adverse effects* ; Brain ; Cell Adhesion Molecules/metabolism* ; Craniocerebral Trauma/etiology* ; Death ; Ethanol/poisoning* ; Heart/drug effects* ; Humans ; Matrix Metalloproteinase 2/metabolism* ; Matrix Metalloproteinase 9/metabolism* ; Membrane Proteins ; RNA-Binding Proteins ; Subarachnoid Hemorrhage/complications*

Objective To evaluate the short -term efficacy and adverse reactions of gemcitabin combined with nedaplatin to patients with metastatic triple -negative breast cancer after taxane and/or anthracycline treatment. Methods Thirty -three patients with anthracycline and/or taxane -resistant metastatic triple -negative breast cancer received gemcitabin and nedaplatin regimen:gemcitabin 1 000 mg/m2,d1,8 days,intravenous;nedaplatin 80mg/m2,d1,intravenous.Treatments were repeated every 21 days and response rate was evaluated every two cycles. Results Of 33 patients, complete remission ( CR) in 1 case ( 3.03%), partial remission ( PR) in 13 cases (39.39%),stable disease(SD) in 11 cases(33.33%),progressive disease(PD) in 8 cases(24.24%),objective response rate was 42.42%.The main adverse reaction was bone marrow suppression and gastrointestinal reaction. Conclusion Combination therapy of gemcitabin and nedaplatin is an effective and well tolerated rescue regimen in anthracycline and/or taxane -resistant metastatic triple -negative breast cancer patients.

Objective To explore the clinicopathologic characteristics,to screen risk factors of metastasis and to analyze the diagnosis,treatment and prognosis of gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN).Methods From January 2010 to November 2015,the clinical data of 405 patients with GEP-NEN were retrospectively analyzed.GEP-NEN tumors were classified as neuroendocrine tumor (NET,G1 and G2 grade),neuroendocrine carcinoma (NEC,G3 grade) and mixed adenoendocrine carcinoma (MANEC,G3 grade).The clinicopathologic characteristics were summarized.The staining characteristics of synaptophysin (Syn),chromogranin A (CgA) and CD56 of tumor tissues were analyzed by immunohistochemistry.x2 and t test were performed to analyze differences in pathologic characteristics between groups.Logistics regression method was used to analyze the risk factors of metastasis.KaplanMeier method and Log-rank test were used for survival analysis.Results The mean age of patients with GEP-NEN was (54.7± 13.3) years.Gastric NEN was the most common GEP-NEN (98 cases,24.2％),followed by 95 cases (23.5％) with NEN in rectum,86 cases (21.2％) in pancreas and 50 cases (12.3％)in esophagus.Among them,47 cases (11.6％) were functional GEP NEN and 358 cases (88.4％) were non-functional GEP-NEN.According to pathologic diagnosis,227 cases (56.0％) were NET,125 cases (30.9％) were NEC and 16 cases (4.0％) were MANEC.According to tumor classification,120 cases (29.6％) were grade G1,108 cases (26.7％) were grade G2 and 177 cases (43.7％) were grade G3.Immunohistochemistry staining positive ratesof Syn,CgA and CD56 were 97.4 ％ (381/391),44.0 ％ (121/275) and 83.9％(291/347),respectively.The median (lower quartile,upper quartile) diameter of grade G1,G2 and G3 tumors were 1.0 cm (0.6 cm,1.5 cm),1.5 cm (1.0 cm,2.5 cm),4.0 cm(2.5 cm,6.0 cm),respectively,and the difference was statistically significant (Z =99.171,P ＜ 0.01).The positive rate of CgA of grade G3 tumor was lower than that of grade G1 and G2(x2 =7.078 and 11.391,both P＜ 0.01).The results of Logistic regression analysis revealed that tumor size and pathologic classification were the important predictors of metastasis.The median survival time of metastasis group and non-metastasis group of grade G3 was 12.0 months and 41.5 months,and there was a significant difference between the two groups by Log-rank test (x2 =37.075,P＜0.01).Conclusions GEP-NEN may occur at any part of the digestive system.There are differences in tumor size positive rate of,immunohistochemistry staining and the primary site of tumors with different pathological grading.The tumor diameter and pathologic classification are the important predictors of metastasis.The prognosis of metastasis group is worse than that of non-metastasis group.