Objective In order to enhance the understanding of Churg- Strauss syndrome, the clinical manifestations and the pathological features of 15 patients were reviewed. Methods The clinical and patho- logical findings of 15 patients with Churg- Strauss syndrome admitted to Peking Union Medical College Hospi- tal were retrospectively analysed. Results In 15 cases, the initial clinical manifestations were poly- mononeu- ropathy, gastrointestinal disorders and skin lesions. Peripheral eosinophilia was significant in all cases. Biopsies were taken in all cases. The typical pathological features usually demonstrated in diffiferent stage of the dis- ease. Conclusions If a patient shows a clinical manifestation of fever, skin lesions, neuropathy, abdominal pain and diarrhea, as well as eosinophilia in peripheral blood, the diagnosis of Churg- Strauss syndrome should be considered. It is necessary to take biopsies from several sites at different time.

Objective To observe the influences of electroacupuncture(EA) on the morphological changes in neurons and glia cells in sacral dorsal commissural nucleus(SDCN) of rats with ulcerative colitis(UC),and study the mechanism of acupuncture in modulating central nervous system in UC.Methods Forty-eight male SD rats were randomly assigned to four groups: control group,UC model group,EA Tsusanli group(UC plus EA at Tsusanli acupoint) and EA non-acupoint group(UC plus EA non-acupoint group).According to the acupuncture duration,EA Tsusanli group was divided into three subgroups: 1-day,3-day and 5-day subgroup(8 rats for each subgroup).UC model of rats was reproduced by instillation of a solution containing ethanol and 2,4,6,-trinitrobenzenesulfonic acid(TNBS) into the distal colon.When the treatment was ended,all the rats were sacrificed and SDCN slides were prepared.The expressions of Fos,glial fibrillary acidic protein(GFAP) and OX42 immunoreactivity in SDCN were assessed and calculated by using single or double immunohistochemical methods.Results In the three experimental groups,the Fos-positive neurons,GFAP-positive astrocytes and OX42-positive microglia were mainly expressed in SDCN.In UC model group and EA non-acupoint group,the expressions of Fos,GFAP and OX42 immunoreactivity were stronger than those in EA Tsusanli group(P

Objective To investigate the effects of electro-acupuncture on gastric emptying and Fos expression in the neuron of vagal-solitary complex (VSC) of rat bulbus after lipopolysaccharide (LPS) intraperitoneal injection (i.p.). Methods 40 male SD rats were randomly assigned to 4 groups: control group, LPS i.p. group, LPS i.p. plus electro-acupuncture at Tsusanli point group and LPS i.p. plus electro-acupuncture at non-meridian-non-acupoint group, 10 rats for each group. Immunohistochemical techniques were used to detect the Fos expression in VSC. The animal's gastric emptying was measured by phenol red method. Results The rats with gastric emptying decreased greatly to (20.7±4.5)% 2.5 hours after LPS injection, and Fos-positive neurons were significantly found in VSC (83.2±6.6) compared with control group. However, in the group of LPS i.p. plus electro-acupuncture at Tsusanli point, the gastric emptying was up-regulated to (44.1±6.2)%, and the expression of Fos -positive neurons were down-regulated to (37.9±3.8) compared with LPS i.p. group. No significant difference was found between the group of LPS i.p. plus electro-acupuncture at non-meridian-non-acupoint and the group of LPS i.p. Conclusion LPS i.p. can retard the gastric motility in rats, electro-acupuncture at Tsusanli point may well regulate the function in LPS model rats. This function may be connected with its protective effects on Fos immunoreactive neurons activity in VSC of rat bulbus.

Objective To analyze the differences of immune responses against Mycobacterium tu-berculosis antigens induced in two different nonhuman primates and to provide rationales for the selection of suitable animal models for vaccine efficacy evaluation.Methods Expression of functional surface markers including CD69 and HLA-DR, the activation markers on CD4+and CD8+T cells from in rhesus macaques and cynomolgus monkeys were measured by flow cytometry analysis.PBMCs were isolated from rhesus ma-caques and cynomolgus monkeys with Mycobacterium tuberculosis infection and stimulated with PPD and pep-tide pools ( ESAT-6/CFP-10) .Enzyme-linked imunospot ( ELISPOT) assay was performed to detect IFN-γproducing lymphocytes.Results The CD4+and CD8+T cells isolated from rhesus macaques without Myco-bacterium tuberculosis infection expressed higher levels of CD69 and HLA-DR than those from healthy cyno-molgus monkeys (P<0.01).The numbers of IFN-γspot forming cells/106 PBMCs in rhesus macaques with Mycobacterium tuberculosis infection for 10 and 11 months were respectively 3 and 3.5 times higher than that of cynomolgus monkeys upon after the stimulation of PBMCs with PPD.The levels of IFN-γproduction by the cells from rhesus macaque group were also higher than those from cynomolgus monkey group upon after the stimulation of PBMCs with ESAT-6 or CFP-10 peptide pools.Conclusion More IFN-γproducing cells were induced in rhesus macaques than that in cynimolgus monkeys after stimulation with Mycobacterium tu-berculosis antigens.Therefore, the rhesus macaques might be a better animal model for evaluating immune responses induced by Mycobacterium tuberculosis vaccines.

Objective To explore the risk factors and seek effective intervention of intracranial hemorrhage in the premature in-fants .Methods Clinical data of the premature infants in our hospital from January 2009 to December 2013 was retrospectively ana-lysed and single factor analysis of 20 relevant factors was done for cases with intracerebral haemorrhage and without intracerebral haemorrhage .Logistic regression analysis were done for some influence factors of intracranial hemorrhage .Results 1 726 cases of premature babies were included in the study ,including 264 cases of intracranial hemorrhage .Logistic regression analysis results shown that the neonatal transport network and integrated active transport models are protective factors of intracranial hemorrhage in the premature infant .We found that basic-level hospital transport was an independent risk factor .Between January 2009 and De-cember 2011 ,142 of 714 premature infants were intracranial hemorrhage ,including 88 cases from 348 patients transported from bas-ic-level hospital ,the incidence of intracranial hemorrhage was 25 .29% ,and compared with the incidence of intracranial hemorrhage (14 .75% ) of our hospital ,the difference was statistically significant (P<0 .05) .From January 2012 ,we established perfect neonatal transport network and implementation of comprehensive active transport model .122 of 1 012 premature infants were intracranial hemorrhage ,including 75 cases of 490 patients from basic-level hospitals .The incidence was statistically significant different com-pared with the incidence of intracranial hemorrhage(9 .00% ) transported from our hospital(P<0 .05) .The incidence of intracranial hemorrhage in the premature infants transported from basic-level hospitals were statistically different before and after neonatal transport network and comprehensive active transport model was established (P<0 .01) .Conclusion It will effectively reduce the incidence of intracranial hemorrhage in the premature infant by establishing the perfect regional neonatal three-level network trans-port system and comprehensive active transport models .

The fused gene (PTH-HSA) of parathyroid hormone (PTH) gene and Human Serum Albumin(HSA) gene was amplified without linker by Overlapping PCR technology. The spliced gene was clone into Pichia pastoris secretory vector pPIC9K. With the help of promoter AOX1 and mat ? signal peptide, the PTH-HSA gene was designed to secretory expression.Linearized by restriction enzyme SalI, The recombinant plasmid pPIC9K/PTH-HSA was transformed into Pichia pastoris KM71 by electroporation. The recombinant strains which were identified by G418 and PCR analysis were induced by methanol to express protein PTH-HSA. The target protein was expressed in fermentation supernatant. Western blot analysis of the fusion protein showed that the expressed fusion protein PTH-HSA had the antigenicity of HSA.adenylate cyclase assay proved that the fused protein exhibited the bioactivity to stimulate cAMP synthesis The specific activity of broth was about 318IU/ml.

Recent studies in secretory pathway calcium ATPases (SPCA) revealed novel functions of SPCA2 in interacting with store-operated Ca(2+) channel Orai1 and inducing Ca(2+) influx at the cell surface. Importantly, SPCA2-mediated Ca(2+) signaling is uncoupled from its conventional role of Ca(2+)-ATPase and independent of store-operated Ca(2+) signaling pathway. SPCA2-induced store-independent Ca(2+) entry (SICE) plays essential roles in many important physiological processes, while unbalanced SICE leads to enhanced cell proliferation and tumorigenesis. Finally, we have summarized the clinical implication of SICE in oral cancer prognosis and treatment. Inhibition of SICE may be a new target for the development of cancer therapeutics.
Calcium Channels ; physiology ; Calcium Signaling ; physiology ; Calcium-Transporting ATPases ; physiology ; Cell Proliferation ; Cell Transformation, Neoplastic ; metabolism ; Humans ; Neoplasms ; physiopathology ; ORAI1 Protein ; Prognosis

Aged ; Burkitt Lymphoma ; complications ; pathology ; Humans ; Intestinal Perforation ; etiology ; Jejunal Diseases ; etiology ; Jejunal Neoplasms ; complications ; pathology ; Male

OBJECTIVETo investigate the changes of the cardiac hemodynamics after acute high altitude exposure in healthy young males and the relationship with acute mountain sickness(AMS).

METHODSLeft ventricular function and oxyhemoglobin saturation (SaO2), heart rate (HR), blood pressure (BP) were measured in 218 healthy young males before and after high altitude exposure within 24 h respectively. According to the lake louise score criteria, the subjects were divided into two groups: acute mountain sickness group (AMS group) and non acute mountain sickness group (non-AMS group).

RESULTSHR, diastolic blood pressure (DBP), mean arterial pressure (MAP), left ventricular ejection fraction (LVEF), stroke volume (SV), stroke index (SI) cardiac output (CO), cardiac index (CI) were significantly increased upon acute high altitude exposure (P < 0.05). Whereas SaO2 and end-systolic volume (ESV) were significantly decreased (P < 0.05). In addition, HR, systolic blood pressure (SBP) and MAP in AMS group were significantly higher than those in non-AMS group (P < 0.05). But stroke index (SI) and end-diastolic volume (EDV) in AMS group were significantly lower than those in non-AMS group (P < 0.05).

CONCLUSIONCardiac function in healthy young males upon acute high altitude exposure was enhanced. EDV, HR and SI might become the indexes of predicting the acute mountain sickness in the future.

The study aims to characterize and compare interferon reference standards from 5 manufacturers. By testing molecular mass and trypsin-digested peptide mass mapping, the amino acid sequence was verified and post-translational modifications such as disulfide bond were identified. Results show that the molecular mass and amino acid sequence were consistent with theory; the disulfide bonds of 4 lots of interferon were Cys1-Cys98/Cys29-Cys138, 1 lot was Cys29-Cys139/Cys86-Cys99; N-terminal "+Met", acetyl N-terminal and Met oxidation were identified in part of the sample. UPLC-MS can be used to characterize and compare interferon reference standards from different manufacturers.
Amino Acid Sequence ; Chromatography, High Pressure Liquid ; methods ; Interferons ; standards ; Mass Spectrometry ; methods ; Molecular Weight ; Oxidation-Reduction ; Peptide Mapping ; Protein Processing, Post-Translational ; Reference Standards