OBJECTIVETo investigate whether apollon immunoexpression in breast cancer tissues helps to predict pathological complete response (pCR) after neoadjuvant chemotherapy (NAC).

METHODSThe expressions of Apollon, Her-2, estrogen receptor (ER) and progesterone receptor (PR) were detected immunohistochemically in biopsy tissues from 124 breast cancer patients. The clinical responses to NAC were evaluated in line with the response evaluation criteria in solid tumors (RECIST). The pCR rate was analyzed for different types of breast cancer. The correlations between Apollon status with Her-2, ER, PR, lymph node status and tumor size were analyzed. Immunohistochemistry was used to compared the changes in Apollon expression in the breast cancer tissues before and after NAC.

RESULTSThe pCR rate was 18.5% (23/124) in these patients. Negative expressions of apollon, ER and PR were all associated with a higher pCR rate after NAC. Apollon was significantly correlated with Her-2, ER, PR and lymph node involvement. Chemotherapy significantly down-regulated apollon expression in the tumor cells.

CONCLUSIONA negative apollon expression might be a predictor of pCR in patients with breast cancer.

Biopsy ; Breast Neoplasms ; drug therapy ; metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Immunohistochemistry ; Inhibitor of Apoptosis Proteins ; metabolism ; Neoadjuvant Therapy ; Receptor, ErbB-2 ; metabolism ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism

In this paper, we analyze the transformer of X-ray high-voltage high-frequency generators and, have designed and implemented a high-voltage insulation testing system for its oil tank using full-bridge series resonant soft switching PFM DC-DC converter.
Electricity ; Equipment Design ; Radiology ; instrumentation ; Technology, Radiologic ; X-Rays

BACKGROUNDProteasome subunits (PSMB) and transporter associated with antigen processing (TAP) loci are located in the human leukocyte antigen (HLA) Class II region play important roles in immune response and protein degradation in neurodegenerative diseases. This study aimed to explore the association between single nucleotide polymorphisms (SNPs) of PSMB and TAP and Parkinson's disease (PD).

METHODSA case-control study was conducted by genotyping SNPs in PSMB8, PSMB9, TAP1, and TAP2 genes in the Chinese population. Subjects included 542 sporadic patients with PD and 674 healthy controls. Nine identified SNPs in PSMB8, PSMB9, TAP1, and TAP2 were genotyped through SNaPshot testing.

RESULTSThe stratified analysis of rs17587 was specially performed on gender. Data revealed that female patients carry a higher frequency of rs17587-G/G versus (A/A + G/A) compared with controls. But there was no significant difference with respect to the genotypic frequencies of the SNPs in PSMB8, TAP1, and TAP2 loci in PD patients.

CONCLUSIONChinese females carrying the rs17587-G/G genotype in PSMB9 may increase a higher risk for PD, but no linkage was found between other SNPs in HLA Class II region and PD.

ATP-Binding Cassette Sub-Family B Member 2 ; genetics ; ATP-Binding Cassette, Sub-Family B, Member 3 ; genetics ; Adult ; Aged ; Antigen Presentation ; Case-Control Studies ; Cysteine Endopeptidases ; genetics ; Female ; Humans ; Male ; Middle Aged ; Parkinson Disease ; genetics ; immunology ; Polymorphism, Single Nucleotide ; Proteasome Endopeptidase Complex ; genetics

OBJECTIVETo develop a 96-microwell plate DNA diagnostic chip for simultaneous detection of 9 major foodborne bacteria.

METHODSType-specific PCR primers labeled with biotin and oligonucleotide probes were designed according to the conservative genes of 9 major foodborne bacteria Staphylococcus aureus, Salmonella spp., Escherichia coli O157:H7 (Stx1 and Stx2), Shigella spp., Listeria monocytogenes, Bacillus cereus, Yersinia enterocolitica, Vibrio cholerae and Vibrio parahaemolyticus. A one-tube multiplex PCR system for simultaneous amplification of these bacteria was established, and the DNA probes were spotted and immobilized in the wells of the plate in 5x5 array format. Stable hybridization system between PCR products and oligonucleotide probes in the microwell was established after condition optimization. Alkaline phosphatase-conjugated streptavidin and NBT/BCIP were used to detect the hybridized PCR products.

RESULTSTwenty standard bacteria strains were used to validate the 96 microwell plate DNA diagnostic chip and highly specific and stable experiment results were obtained. Using this chip assay, the causal pathogen Staphylococcus aureus was identified within 12 h after the sampling from an incident of food poisoning, and the result was consistent with that obtained using conventional bacterial culture and biochemical identification.

CONCLUSIONThe novel 96 microwell plate DNA diagnostic chip allows rapid, accurate, automated and high-throughput bacterial detection and is especially valuable for quick response to such public health emergencies as food poisoning.

Bacteria ; classification ; genetics ; isolation & purification ; DNA, Bacterial ; analysis ; Food Contamination ; analysis ; Food Microbiology ; methods ; Foodborne Diseases ; microbiology ; Humans ; Oligonucleotide Array Sequence Analysis ; methods

Objective The activation of NF-kappa B (NF-κB) signaling pathway plays an important role in the development of helicobacter pylori associated gastritis (HAG). The article aimed to investigate the effects of polygonum capitatum on the treatment of HAG in NF-κB signaling pathway and observe whether the regulation of NF-κB acetylation by silent information regulator 1 (SIRT1) affects the therapeutic effects of HAG. Methods The immortalized human gastric epithelial cells (GES-1) were cultured and the H.pylori stand- ard strain ATCC700392 was used for the replication of HAG cell model by 100∶1. The cells were divided into model group,drug group and normal control group. Cells were treated with 80 μg/mL in drug group,H.pylori and GES-1 were cultured together in model group and untreated GES-1 cells were taken as control group. Real time PCR was used to detect the mRNA levels of SIRT1,NF-κB/p65 and TNF-α. Western blotting was used to detect the expression levels of SIRT1,NF-κB/p65 and its acetylated protein in the total protein,as well as the expression levels of SIRT1 and NF-κB/p65 in cytoplasm and nuclear protein. Results At 12 h after the infection of H. pylori,the level of TNF-α in the supernatant was higher than that in the normal control group(P<0.05). The expression of SIRT1 de-creased in the cytoplasm of model group,while the expression levels of NF-κB/p65,acetyl-NF-κB p65(Lys310) and TNF-α in the nu-cleus increased (P<0.05). But after the treatment of polygonum capitatum,the expression of SIRT1 in the nucleus increased(P<0.05) while the expression of NF-κB/p65,acetyl-NF-κB p65(Lys310) and TNF-α decreased (P<0.05). Conclusion Polygonum capita-tum can activate the SIRT1 in the nucleus,which makes activated NF-κB/p65 in the nucleus carry out deacetylation modification in or-der to antagonize the cell damage induced by H.pylori.

BACKGROUNDNurr1 plays an essential role in the development, survival, and function maintenance of midbrain dopaminergic (DA) neurons, and it is a potential target for Parkinson's disease (PD). Nurr1 mRNA can be detected in peripheral blood mononuclear cells (PBMCs), but whether there is any association of altered Nurr1 expression in PBMC with the disease and DA drug treatments remains elusive. This study aimed to measure the Nurr1 mRNA level in PBMC and evaluate the effect of Nurr1 expression by DA agents in vivo and in vitro.

METHODSThe mRNA levels of Nurr1 in PBMC of four subgroups of 362 PD patients and 193 healthy controls (HCs) using real-time polymerase chain reaction were measured. The nonparametric Mann-Whitney U-test and Kruskal-Wallis test were performed to evaluate the differences between PD and HC, as well as the subgroups of PD. Multivariate linear regression analysis was used to evaluate the independent association of Nurr1 expression with Hoehn and Yahr scale, age, and drug treatments. Besides, the Nurr1 expression in cultured PBMC was measured to determine whether DA agonist pramipexole affects its mRNA level.

RESULTSThe relative Nurr1 mRNA levels in DA agonists treated subgroup were significant higher than those in recent-onset cases without any anti-PD treatments (de novo) (P < 0.001) and HC groups (P < 0.010), respectively. Furthermore, the increase in Nurr1 mRNA expression was seen in DA agonist and L-dopa group. Multivariate linear regression showed DA agonists, L-dopa, and DA agonists were independent predictors correlated with Nurr1 mRNA expression level in PBMC. In vitro, in the cultured PBMC treated with 10 μmol/L pramipexole, the Nurr1 mRNA levels were significantly increased by 99.61%, 71.75%, 73.16% in 2, 4, and 8 h, respectively (P < 0.001).

CONCLUSIONSDA agonists can induce Nurr1 expression in PBMC, and such effect may contribute to DA agonists-mediated neuroprotection on DA neurons.

Adult ; Aged ; Aged, 80 and over ; Dopamine Agonists ; therapeutic use ; Female ; Humans ; Leukocytes, Mononuclear ; drug effects ; metabolism ; Male ; Middle Aged ; Nuclear Receptor Subfamily 4, Group A, Member 2 ; genetics ; Parkinson Disease ; drug therapy ; genetics ; RNA, Messenger ; genetics ; Young Adult

OBJECTIVETo study the clinical, pathologic and radiologic features of chondroblastoma occurring in sites other than epiphysis and apophysis of long bones, and to investigate possible reasons for misdiagnosis.

METHODSThe clinical, pathologic and radiologic data of 18 chondroblastoma cases occurring in atypical sites were collected from 5 major hospitals in Shanghai during the past 12 years. S-100 immunostaining was performed to confirm the cartilaginous differentiation of the tumor cells.

RESULTSChondroblastoma occurred in small bones of feet in 10 of the 18 cases (55.6%) studied, being commonest in the talus and calcaneus bones. Mean age of the patients was 27.8 years, with 55.6% over 25 years of age. Radiologic examination revealed expansive, multilocular and well-demarcated radiolucent lesions in most cases. There was local cortical destruction in 5 cases (28%) and soft tissue infiltration in 1 case. In 10 cases (55.6%), the tumor was associated with aneurismal bone cyst or simple bone cyst formation. None of the cases studied was accurately diagnosed clinically before the operation. In 2 cases, the pathology was also misdiagnosed, often being diagnosed as aneurismal bone cyst or giant cell tumor.

CONCLUSIONSChondroblastoma occurring in atypical sites are often associated with atypical age, radiologic features and pathologic findings at presentation. Thorough understanding of the potential pitfalls is essential in order to avoid misdiagnosis.

Adolescent ; Adult ; Bone Cysts, Aneurysmal ; diagnosis ; diagnostic imaging ; pathology ; Bone Diseases ; diagnosis ; diagnostic imaging ; pathology ; Bone Neoplasms ; diagnosis ; diagnostic imaging ; pathology ; Calcaneus ; Child ; Chondroblastoma ; diagnosis ; diagnostic imaging ; pathology ; Diagnostic Errors ; Female ; Giant Cell Tumor of Bone ; diagnostic imaging ; pathology ; Humans ; Male ; Radiography ; Talus

Objective To investigate the status of infection and distribution of rabies virus (RV) in different epidemic areas in China. Methods Brain specimens from animals and suspected patients were collected at the districts of high-, medium- and low incidence rates of human rabies and detected by both direct Immunofluorescence assay (DFA) and RT-PCR. Results 254 of 3007 specimens of dog brains showed RV positive by DFA (positive rate of 8.4% ). Among these 254 samples, 78 showed positive (positive rate of 30.7% ) by RT-PCR. 93 specimens from dogs and cats that had attacked human beings, 63 of them showed positive by DFA (positive rate of 67.7%) and all of them were also positive by RT-PCR. In addition, RV could also be detected in Apodemus agrarius,ferret badger, and suspected patients specimens from the districts under survey. There was no statistical difference between the infection rates of RV in different provinces and regions with different incidence of rabies. Conclusion There might be a relatively high infection rate of RV among the domestic dogs/cats in the endemic areas in China. Wild animals might have been infected with RV in the districts under survey.

Objective To investigate the effect of Xiao Chaihu Decoction and Xiangsha Liujunzi Decoction on the changes of gastric mucosal pathological score and gastrointestinal hormones in patients with chronic atrophic gastritis(CAG)of liver stagnation and spleen deficiency type.Methods A total of 156 cases of CAG patients with liver stagnation and spleen deficiency syndrome were randomly divided into a control group and an observation group,78 cases in each group.The control group was treated with conventional western medicine,and the observation group was treated with Xiao Chaihu Decoction and Xiangsha Liujunzi Decoction on the basis of treatment for the control group.The course of treatment covered four weeks.The changes in the scores of traditional Chinese medicine(TCM)symptoms such as epigastric distention and pain,poor appetite,loose stools,limb weakness,belching and acid regurgitation,gastric mucosal pathological scores and serum levels of gastrointestinal hormones of motilin(MTL)and gastrin(GAS)in the two groups were observed before and after treatment.The negative conversion rate of Helicobacter pylori(Hp)in the two groups was compared,and the clinical efficacy and safety of the two groups were evaluated.Results(1)After four weeks of treatment,the total effective rate of the observation group was 93.59％(73/78),which was significantly higher than 82.05％(64/78)of the control group,and the difference between the two groups was statistically significant(P＜0.05).(2)After treatment,the scores of TCM symptoms such as epigastric distention and pain,poor appetite,loose stool,limb weakness,belching and acid regurgitation in the two groups were significantly decreased compared with those before treatment(P＜0.05),and the decrease in the observation group was significantly superior to that in the control group(P＜0.05).(3)After treatment,the pathological scores of gastric mucosa in the two groups were significantly decreased when compared with those before treatment(P＜0.05),and the decrease in the observation group was more significant than that in the control group(P＜0.01).(4)After four weeks of treatment,the negative conversion rate of Hp in the observation group was 91.03％(71/78),which was significantly higher than that in the control group(75.64％,59/78),and the difference between the two groups was statistically significant(P＜0.05).(5)After treatment,the level of serum GAS in the two groups was significantly decreased(P＜0.05)and the serum MTL level was significantly increased compared with that before treatment(P＜0.05);the decrease of serum GAS level and the increase of serum MTL level in the observation group were significantly superior to those in the control group(P＜0.05).(6)There were no obvious abnormalities in the routine test of blood,urine,stool,kidney function,and liver function,electrocardiograph and other safety indicators during the treatment of the two groups of patients,no adverse reactions such as dizziness,rash and chest distress occurred either,with high safety.Conclusion Xiao Chaihu Decoction combined with Xiangsha Liujunzi Decoction exerts a significant therapeutic effect on GAS of liver stagnation and spleen deficiency type,which can effectively relieve the clinical symptoms,improve the pathological changes of gastric mucosa and promote Hp negative conversion.The therapeutic mechanism may be related to the regulation of gastrointestinal hormone levels.

China Association of Chinese Medicine organized specialists in andrology of Chinese and western medicine to explore the population and treatment stage of benign prostatic hyperplasia （BPH） with Chinese medicine as the leading therapy. Chinese medicine has great advantages in the treatment of benign prostatic hyperplasia. However， it is necessary to make clear the stage when Chinese medicine or modern medical treatment can be used as the leading therapy， and the conditions under which Chinese and western medicine can be combined to achieve the best treatment efficacy. The specialists agreed Chinese medicine as the leading therapy for the treatment of BPH in the following populations or conditions： the elderly and weak patients with basic diseases， BPH symptoms， and cannot tolerate anesthesia and surgery， the patients with BPH symptoms and cannot tolerate the adverse reactions or the possible adverse reactions of western medicine； the patients with mild ［international prostatic symptom score （IPSS） ≤ 7］ or moderate lower urinary tract symptoms （IPSS ≥ 8） and the quality of life not significantly affected， the patients with bladder detrusor hypofunction， bladder dysfunction and cannot be treated surgically， or with incomplete bladder emptying after surgical treatment； the BPH patients with prostatitis as the main clinical manifestation， the patients with non-acute complications after operation. BPH is one of the dominant diseases in urology and andrology of Chinese medicine， and the symptoms， complications， and prognosis of BPH patients need to be fully considered during the clinical treatment. When Chinese medicine is taken as the leading therapy， it is essential to regularly review the serum level of prostate-specific antigen to exclude the possibility of prostate cancer， and apply Chinese medicine for full treatment course and cycle. At the same time， Chinese and western medicine can be combined to achieve the most effective， convenient， economical， and satisfactory treatment， which can carry forward the advantages of Chinese medicine in treating this disease.