Objective: To investigate the effect of sinomenine on expression of toll like receptor(TLR) 2 and TLR4 of dendritic cells in patients with rheumatoid arthritis in vitro.Methods: The peripheral blood mononuclear cells were isolated from 10 rheumatoid arthritis patients and differentiated into dendritic cells by stimulating with cytokines.Dendritic cells were exposed to high(5mM),middle(2mM),low(1mM) concentration sinomenine and control medium.TLR2 and TLR4 mRNA were detected by real time PCR.Western blot was used to measure the expression of TLR2 and TLR4.Results: In contrast to control,signifi cant lower expression of TLR2,TLR4 mRNA and protein were found in dendritic cells treated with sinomenine,especially in high and middle concentration.Conclusion: The therapeutical effect of sinomenine on rheumatoid arthritis is probably by inhibiting dendritic cells expressing TLR,which can transduce the in? ammatory signal.

BACKGROUND: Now, Shock Wave Therapy is used to cure the ununion and delayed union of bone, the avascular necrosis of the femoral head and the chronic injury of locomotor system, what has got a good curative effect. But, the mechanism is not clear. OBJECTIVE: To investigate the expression of c-Fos, c-Jun protein in human bone marrow mesenchymal stem cells (BMSCs) Influenced by shock wave.DESIGN, TIME AND SETTING: Randomized group, the controlled study was performed at the State Key Laboratory of Pathology, College of Basic Medicine, Jilin University, from March 2007 to March 2008. MATERIALS: Bone marrow was obtained from healthy volunteers.METHODS: Human BMSCs were cultured in vitro. And the fourth generation cells were digested into cell suspension with 2.5 g/L trypsin and adjusted at a density of 1.0×10~9/L with DMEM-LG. Then, the cells were divided into 6 1.5-mL Eerrendorf tubes, one was control group and the other five were experimental groups. The experimental groups were treated with an optimal dose of shock wave (8.5 kV, 120 times) by liquid-electric shock wave lithotripsy. Then the protein was extracted at different time points (5, 15, 30 minutes, 1, 2 hours) after treatment.MAIN OUTCOME MEASURES: Inverted microscope was used to observe the morphologic feature of BMSCs. The growth curves were charted by MTT method. The change of activations of c-Fos, c-Jun were tested by western blot. RESULTS: ①BMSCs were seeded in culture plate. The cells began to divide and proliferate slowly 24 hours later, and became fusiform shape after adhering to the wall. 3 days later, the speed of proliferation quickened, and cells accumulated colony. At day 10-14, the number of hMSCs grew till they covered the bottom of the culture plate. The round passage hMSCs adhered to the wall completely in 24 hours, which were similar to primary cells. The cells connected together during one week, and showed vortex-like. The speed of proliferation became slower and the cells became older when hMSCs were passaged to the tenth generation. ②MTT method showed that the growth curve of original, P2, P3 hMSCs looked like S shape, and the third to fifth days were growing period. ③The phosphorylation level of c-Fos and c-Jun began to increase after induced by shock wave and reached a peak at 30 and 15 minutes, respectively. And their phosphorylation level were 2.56-fold and 1.68-fold (P < 0.01) compared with the average level in control groups, respectively. Then they began to decrease. There was no apparent change in the total dose (P > 0.05). CONCLUSION: Following the treatment of shock wave, the activations of c-Fos and c-Jun in BMSCs increased.

AIM: To investigate the effect of advanced glycosylation end products on the expression of receptor for advanced glycosylation end products in human monocyte-derived dendritic cells. METHODS: Monocytes were purified (over 98%) using anti-CD14+ microbeads. After 8 d culture in RPMI-1640 medium containing rhGM-CSF (100 ?g/L) and rhIL-4 (50 ?g/L), immature MDCs were derived, then exposed to AGE-BSA (0 or 200 mg/L) for 24 h. Expression of RAGE was semi-quantified by RT-PCR and Western blotting. At the same time, supernatants were collected. IFN-? and IL-12 were analyzed by ELISA. RESULTS: mRNA and protein of RAGE incubated by 200 mg/L AGE-BSA was higher than that in control at 24 h. Treatment of DCs with AGE-BSA resulted in about two-fold increase in the expression of RAGE (P

AIM: The purpose of this study is to investigate the mechanisms related to oxidized low-density lipoprotein(ox-LDL) and dendritic cells(DCs) in the process of atherosclerosis.METHODS: Human DCs were prepared from human CD14~+ peripheral blood monocytes using rhGM-CSF((100 ?g/L)) and rhIL-4(40 ?g/L).Cells were incubated with(100 mg/L) native or oxidized LDL for 72 h.The formation of foam cells was investigated by electron microscopy and oil red O staining.Phenotypic and immune functional assays were used with FACS,FITC-dextran phagocytosis,allogeneic mixed T lymphocytes reaction and secretion of Th1/Th2(IL-12/IL-2) cytokines were also conduced.RESULTS: DCs treated with ox-LDL,but not native LDL were induced into foam cells after cultured for 72 h.Compared with native LDL,ox-LDL-treated DCs were less potent in FITC-dextran phagocytosis.ox-LDL promoted allogeneic T cells proliferation.Moreover,ox-LDL upregulated CD80(72.4? 9.6 vs 89.5?10.1,P

OBJECTIVE: To raise clinical awareness of carcinoembryonic antigen(CEA) increased as initial manifestation of medullary thyroid cancer(MTC) and explore the diagnosis and treatment. METHOD: Clinical data of 2 cases CEA increased as the initial presentation of MTC were retrospectively analyzed and clinical manifestations of the disease, diagnosis, treatment were also discussed by literature reviewing. RESULT: Two patients received thyroid ipsilateral lobe total resection, MTC was confirmed by intraoperative frozen pathology, re-total resection of the contralateral lobe and bilateral VI lymph node dissection were performed. Lymph nodes had no metastasis confirmed by pathological frozen examination. CEA returned to normal within 2 months after surgery. No tumor recurrence and metastasis were found after follow-up for 3 to 24 months. CONCLUSION CEA increased as the initial presentation MTC was rare and clinical identification of CEA increased disease should be taken into account the MTC as possible. Total thyroidectomy and bilateral VI lymph node dissection was the main surgical treatment for it.
Adult ; Carcinoembryonic Antigen ; metabolism ; Carcinoma, Neuroendocrine ; Female ; Humans ; Middle Aged ; Retrospective Studies ; Thyroid Neoplasms ; metabolism ; pathology

OBJECTIVETo study the relationship between sub-health status and the health-promoting lifestyle of employees.

METHODSA total of 5316 employees in a company in Guangdong were surveyed using sub-health measurement scale version 1.0 (SHMS V1.0) and the health-promoting lifestyle profile (HPLP-II). The former scale included 3 subscales of somatic sub-health, psychological sub-health and social sub-health, and the latter included 6 subscales of self-actualization, healthy responsibility, physical exercise, nutrition, interpersonal sensitivity and stress treatment.

RESULTSThe total healthy rate was 12.86% among the employees, with 76.76% and 10.5% in sub-health and disease states. The mean scores of HPLP-II was 115.95∓21.468 in the total population surveyed, 134.23∓24.72 in healthy employees and 114.69∓19.25 in the patients. There was a significant difference in the grades of health-promoting lifestyle between sub-healthy and healthy employees (P<0.05) as well as in the scores of HPLP-II and the scores of the 6 subscales (P<0.05). An appreciable correlation was found between sub-health status and the 6 subscales, and self-realization, physical exercise and stress management showed significant inverse correlation with sub-health status.

CONCLUSIONSub-health status is related to health-promoting lifestyle, and self-realization, physical exercise and management are the protective factors that influence sub-health status.

Adult ; Cross-Sectional Studies ; Female ; Health Behavior ; Health Promotion ; Health Status ; Humans ; Life Style ; Male ; Surveys and Questionnaires ; Young Adult

OBJECTIVETo explore the application of immediate recurrent laryngeal nerve reconstruction in the treatment of thyroid cancer invading the recurrent laryngeal nerve.

METHODSTen patients with thyroid cancer invading unilateral recurrent laryngeal nerve underwent radical surgery and immediate recurrent laryngeal nerve reconstruction. The reconstructive surgical approach included recurrent laryngeal nerve decompression surgery, end-to-end anastomosis of the recurrent laryngeal nerve, anastomosis of ansa cervicalis nerve to the recurrent laryngeal nerve, and nerve-muscle pedicle (NMP) technique. Among the ten patients, one underwent nerve decompression, one underwent end-to-end anastomosis of the recurrent laryngeal nerve, seven had anastomosis of ansa cervicalis to recurrent laryngeal nerve, and one case had anastomosis of ansa cervicalis to recurrent laryngeal nerve combined with nerve-muscle pedicle (NMP) technique. The effect of surgery was evaluated by videolaryngoscopy, maximum phonation time (MPT), phonation efficiency index (PEI) and voice assessment. T-test was used in the statistical analysis.

RESULTSAll of the 10 patients had no complications including tumor recurrence and hypoparathyroidism after the surgery. Their hoarseness symptoms were improved, and the patients returned to normal or near-normal voice. Postoperative videolaryngoscopy showed that paralyzed vocal cord returned to normal muscle tone and volume, and the vocal cord vibration and mucosal wave were symmetric and the patients got good glottal closure. The pre- and post-operative maximum phone times of the patients were (4.52 ± 0.89) s and (11.91 ± 1.87) s, respectively (P < 0.01). The pre- and post-operative phonation efficiency indices were (1.37 ± 0.43) s/L and (4.02 ± 1.33) s/L, respectively (P < 0.05).

CONCLUSIONSIn patients with thyroid cancer invading unilateral recurrent laryngeal nerve, immediate recurrent laryngeal nerve reconstruction following radical surgery of thyroid cancer can effectively achieve recovery in phonation function and improve the quality of life of the patients.

Anastomosis, Surgical ; Humans ; Neoplasm Recurrence, Local ; surgery ; Neurosurgical Procedures ; Phonation ; Postoperative Complications ; Quality of Life ; Reconstructive Surgical Procedures ; Recurrent Laryngeal Nerve ; pathology ; surgery ; Thyroid Neoplasms ; surgery ; Vocal Cord Paralysis ; Vocal Cords

The mammalian central nervous system (CNS) is considered an immune privileged system as it is separated from the periphery by the blood brain barrier (BBB). Yet, immune functions have been postulated to heavily influence the functional state of the CNS, especially after injury or during neurodegeneration. There is controversy regarding whether adaptive immune responses are beneficial or detrimental to CNS injury repair. In this study, we utilized immunocompromised SCID mice and subjected them to spinal cord injury (SCI). We analyzed motor function, electrophysiology, histochemistry, and performed unbiased RNA-sequencing. SCID mice displayed improved CNS functional recovery compared to WT mice after SCI. Weighted gene-coexpression network analysis (WGCNA) of spinal cord transcriptomes revealed that SCID mice had reduced expression of immune function-related genes and heightened expression of neural transmission-related genes after SCI, which was confirmed by immunohistochemical analysis and was consistent with better functional recovery. Transcriptomic analyses also indicated heightened expression of neurotransmission-related genes before injury in SCID mice, suggesting that a steady state of immune-deficiency potentially led to CNS hyper-connectivity. Consequently, SCID mice without injury demonstrated worse performance in Morris water maze test. Taken together, not only reduced inflammation after injury but also dampened steady-state immune function without injury heightened the neurotransmission program, resulting in better or worse behavioral outcomes respectively. This study revealed the intricate relationship between immune and nervous systems, raising the possibility for therapeutic manipulation of neural function via immune modulation.