Objective:To adopt the brain lesion model of mouse induced by overload aluminum to study the relationship between monoamine oxidase B disorder and neurodegeneration induced by overload aluminum(Al).Method:Aluminum overload models were established by injection of 3?l AlCl3 into lateral ventricle of miceeach day for 5d.The AlCl3 solutions injected in different modelswere with different concentrations and they were 0.125%,0.25%,0.5%.On d10,d20,and d30 after the final administration of AlCl3 solution,the learning and memory function of mice,pathomorphology of hippocampi,and MAO-B activity were determined.Results:Aluminum overload elevated MAO-B activity,caused karyopyknosis and loss of neurons in CA1 area of hippocampi,in dose-and time-dependent manners.Conclusion:The results indicate that neurodegeneration induced by Al toxicity may be related to the monoamine oxidase B homeostasis interfered by Al overload.

Raman bands of oleanolic acid were measured with laser Raman spectroscopy, and compared with that obtained fron IR spectroscopy. It was found that the corresponding characteristic bands of oleanolic acid can be identified in both speetroscopy.

Objective To investigate clinical characters of functional dyspepsia (FD) and organic dyspepsia (OD) and evaluate the Chinese management guideline of dyspepsia. Methods Three hundreds patients with epigastric dyspepsia symptoms received a series of examinations including a detailed investigation of symptoms, liver functions, upper gastrointestinal endoscopy and B ultrasound, and then they were divided into OD and FD groups in accordance with Rome Ⅱ criteria. Results 153 (51.0%) and 147 cases (49.0%) were ascribed to FD and OD respectively. FD occurred more often at the age of less than 40 ( P =0.006). The scores of such symptoms as bloating( P

Female ; Humans ; Medicine, Chinese Traditional ; methods ; Menstruation Disturbances ; pathology ; Polycystic Ovary Syndrome ; pathology ; therapy ; Uterus ; physiopathology

Immune and hemopoiesis are one of basic project of experimental hematology. Immune function is a essential activity of white blood cells. It was puzzled for the diversity and complexity of immune response. Polarized immune response of immune cells was discovered 30 years ago, which facilitates the study on differentiation of lymphocyte. Recently recognition on multifunctional polarized immune response of lymphocyte and monocyte/macrophage would promote to elucidate the regulatory network of immune cells, diversity and complexity of immune response as well as the study on hemopoiesis. In this paper the approach of multifunctional polarized immune response of lymphocyte, monocyte/macrophage and dendritic cells were reviewed, and their role, especially in cytokine storm and tumor pro-inflammation condition were discussed.
Cell Differentiation ; Cytokines ; immunology ; Cytotoxicity, Immunologic ; Dendritic Cells ; cytology ; immunology ; Humans ; Monocytes ; cytology ; immunology

Purpose To study the clinicopathological features, immunophenotype and differential diagnosis of spindle cell rhabdomyosarcoma in adults (SRMS).Methods The clinical,pathologic and immunohistochemical features were evaluated in 9 cases of SRMS in adults.Results Nine cases of SRMS in adults were retrieved from the pathological archive of this hospital. 7 cases were male and 2 were female. Patients age ranged from 20 to 80 years (median,45 years). The head and neck region,including the right mandible, pharyngeal portion, nasopharynx, and left maxillary,was the most commonly affected area, accounting for 44% of the cases, followed by forearm, waist, thigh, leg and testis(1 case each). Tumor size varied from 2 to 14 cm (median 5.9 cm).Histologically, all the tumors were mainly composed of cellular bands and fascicles of atypical spindlE-shaped tumor cells with a variable number of spindled or polygonal rhabdomyoblasts.In addition, focal areas reminiscent of interstitial sclerosing were presented in 2 cases, and pseudovascular structures were noted in 2 cases, loosely myxoid stroma were detected in 1 case and small solid areas with mild pleomorphic tumor cells were present, but lacking bizarre pleomorphic rhabdomyoblasts. Immunohistochemically, the tumor cells were positive for vimentin, desmin, CD99 and MyoD1; Myogenin and MSA were positive in most of the cases (6/9 and 7/9 each); The remaining antibodies(S-100, CD34,CK and HMB-45) were all negative. Follow-up information was available in all the cases, ranged from 6 months to 4 years, revealed paravenous metastases of the peritoneal cavity in one patient with testis tumor and liver metastases in one patient with leg tumour. 4 patients developed local recurrences and 2 patients died of the disease.Conclusions SRMS is a rare neoplasm in adults,and most commonly occurs in male with preferential involvement in the head and neck region. It appears a more aggressive clinical course in adults. Morphologically, SRMS in adults should be differentiated from other spindle cell tumors.

Objective To evaluate the clinical efficacy of partial hepatectomy in treating intrahepatolithiasis. Methods The data of 63 cases with partial hepatectomy were retrospectively evaluated. Results All operations were successful. Mean hospital stay was 30.5d. Complications were found in 9 cases (14.3%), including 2 cases of sub-phrenic abacess,2 cases of biliary fistula,4 cases of wound infectiun,1 case of pleural effusion. Residual stones were found in 7 cases (11.1%) ,4 were in left hepatic lobe,3 were in right. 62 cases (98.4%) were followed for 6 months to 8 years. Stones recurred in 2 cases. Conclusion Partial hepatectomy is effective for the treatment of intrahepatoli-thiasis with low residual stone rate.

Objective: To assess the autonomic nervous impairm ent in chronic renal failure and its related factors. Methods: F orty adults were randomly selected including in-patients in the nephrology ward and healthy subjects for routine medical examination. The subjects were classifi ed into 4 groups: normal subjects(NS)，normal renal function，nitremia， uremic patients. The time domain measurements of heart rate variability(HRV) and ambula tory blood pressure were analyzed simultaneously . Results: (1) There were significant differences as compared with normal subjects in the time domain measurements of HRV in uremic group. It decreased significantly when the patient was defined as end stage chronic renal failure. There were no significan t differences between NS，normal renal function group and nitremic group. (2) Ti me domain measurements of HRV was significantly lower(P<0.05) in uremia with renal hypertension than in uremia with normal blood pressure. Conclusio n: (1) Patients with chronic renal failure(HRV) have their cardiac auton omic nervous system impaired conspicuously in the course of uremia. (2) There is a positive correlation between cardiac autonomic nervous system impairment in p atients with CRF and renal function levels. Uremia itself is an independent fact or for the impairment of cardiac autonomic nervous system. (3) Renal hypertensio n with uremia may intensify the impairment of cardiac autonomic nervous system of the patients.

Vascular endothelial growth factor is a vascular endothelial cell-specific mitogen.It is the most important angiogenic factor.VEGF expresses highly after cerebral infarction.It plays importmt roles in angiogenesis and neuroprotection.At the same time,its overexpression will also increase vascular permeability;thereby it may aggravate brain edema.This article reviews the advances in research on VEGF and its receptors and cerebral infarction.

The success of yielding induced pluripotent stem (iPS) cells from human somatic cells demonstrates the important role of reprogramming in the formation of stem/progenitor cells and initiates the exploration of the origin of leukemia stem cells. In our previous work, we have found two types of leukemia, bona fide leukemia and non-bona fide leukemia. Different leukemias originate from different leukemia stem/progenitor cells which are critical to the genesis and evolution of leukemia. Bona fide leukemia and non-bona fide leukemia originate from leukemia stem cells and progenitor cells, respectively. Recent research suggests that different types of leukemia are influenced by the reprogramming state of their origin cells.
Cell Differentiation ; Cellular Reprogramming ; Humans ; Induced Pluripotent Stem Cells ; Leukemia ; genetics ; Neoplastic Stem Cells ; Stem Cells