OBJECTIVE: To observe the effect of formaldehyde inhalation on the allergic rhinitis mice model. METHOD: Forty-eight male BALB/C mice in six experimental group were exposure to (A) saline control; (B) Der p1; (C) formaldehyde (3.0 mg/m3); (D) Derp1 + formaldehyde (1.5 mg/m3); (E) Der p1 + formaldehyde (3.0 mg/M3); (F) Der p1+ formaldehyde (6.0 mg/m3). The concentrations of IL-4, IL-10 and IFN-γ in the peripheral serum were measured by enzyme-linked immunosorbent assay(ELISA). Nasal mucosal inflammation was evaluated by HE staining. Result: Formaldehyde exposure could increase the number of allergic rhinitis mice with sneezing and rubbing nose. The levels of IL-4 and IL-10 in group B, D, E and F were higher than that ingroup A (P < 0.05). Compared with the group C, the group D, E and F could effectively increase serum IL-4 and IL-10. The concentration of IL-4 in group E and F was higher than that of group B, while the group C was lower (P < 0.05). The concentration of IL-10 in group D, E and F was higher than that in group B (P < 0.05). The expression of IFN-γ in group B, D, E and F was lower than that in group A. While, the IFN-γ expression in group B was lower than that of group C and higher than that in group F (P < 0.05). Moreover, the concentration of IFN-γ in group D, E and F was lower compared with group C (P < 0.05). The nasal mucosa HE staining showed that the density of EOS increased simultaneously in formaldehyde exposure allergic rhinitis groups. CONCLUSION The study showed that formaldehyde exposure can promote Th2 cytokines and eosinophil infiltration and then aggravate the allergic rhinitis symptoms.
Animals ; Antigens, Dermatophagoides ; Arthropod Proteins ; Cysteine Endopeptidases ; Disease Models, Animal ; Enzyme-Linked Immunosorbent Assay ; Formaldehyde ; adverse effects ; Inflammation ; Inhalation Exposure ; adverse effects ; Interferon-gamma ; blood ; Interleukin-10 ; blood ; Interleukin-4 ; blood ; Male ; Mice ; Mice, Inbred BALB C ; Nasal Mucosa ; Rhinitis, Allergic ; chemically induced

Based on analyzing and evaluating ability of social skill of an child with learning disability, this research designed a 3-month project to teach social skill for the child. Through educational propaganda before the teaching, peer-participation, activities of cell-teaching and combining with various strategies to facilitate apperception of social skills. The result indicated that teaching social skill in regular class for learning disability is effective and useful.

As a series of multifunctional cells,recent studies indicate that most of the CD4 + T lymphocyte subsets involve in the tumor angiogenesis and invasion,the apoptosis of tumor cells,and the expressions of acute phase proteins and cancer-promoting genes by activating or inhibiting the innate immune cells,the adaptive immune cells and non-immune cells,thus function as tumor promoters or inhibitors in hepatocellular carcinoma (HCC).

Objective To study the various clinical manifestations of niemann pick disease, and to improve the ability of diagnosis and differential diagnosis in order to reduce misdiagnosis or missed diagnosis.Methods The onset and diagnostic procedure of a seven-month-old infant with niemann pick disease were reported and relative literature were reviewed and studied.Results The infant demonstrated severe hepatosplenomegaly, abnormity of liver function, anemia and development backwardness.Bone marrow examination indicated storage cells suggestive of niemann pick cells.Conclusion Niemann pick disease is a group of rare diseases with various clinical manifestations. Clinical suspected cases need further bone marrow examination, pathologcal biopsy and gene tests.

Objective To study the relationship between ghrelin gene polymorphisms and type 2 diabetes.MethodsAll subjects were genotyped for these two single nucleotide polymorphisms(C408A,G346A)of ghrelin by PCR-RFLP assay.Anthropometric variables,blood glucose,insulin,lipid,uric acid and other clinic parameters were measured.Results In control group,the genotype frequencies are as follows:CC 75.4%(n=251),CA 24.0%(n=80),and AA 0.6%(n=2).In type 2 diabetes group,the genotype frequencies are as follows:CC 70.8%(n=143),CA 28.2%(n=57),and AA 1.0%(n=2).There was no significant differences of the genotype frequencies in two groups.In control group,serum total cholesterol in subjects carrying CC genotype was higher than that of subjects without CC genotype(P

The Doctor Practical Technique Test is one of the two important parts in the Doctor Qualification Tests.The article expounds its importance and complication as well as how to grasp each point of the test.It also makes a statistic analysis of its test results in Chongqing,the feedback information of which will be an enlightenment and help to the reforms in medical education and the standarlized training of clinical residents.

BACKGROUND:Platelet-rich plasma contains a variety of stimulating factors, and can also raise the proteoglycan and col agen synthesis. OBJECTIVE:To observe the effect of platelet-rich plasma on the proliferation of goat bone marrow mesenchymal stem cel s. METHODS:Blood samples were extracted from the jugular vein of Inner Mongolia Ximeng goats to harvest platelet-rich plasma using centrifugation method. Then, bone marrow was extracted from the goat’s ilium by puncture method to isolate and purify goat bone marrow mesechymal stem cel s using density gradient centrifugation method. After that, primary cel s at good state were cultured in L-DMEM complete medium containing 10%, 20%, 30%platelet-rich plasma or in simple L-DMEM complete medium. RESULTS AND CONCLUSION:Within 2-6 days of culture, cel s in the platelet-rich plasma groups proliferated faster than those in the control group, and with the increasing of platelet-rich plasma concentration, the cel s grew faster, with larger number and more mature morphology. At 4 days of culture, the cel doubling time was about 50, 35, 25 hours in the 10%, 20%, and 30%platelet-rich plasma groups, respectively. These findings indicate that goat platelet-rich plasma can dramatical y promote the proliferation of bone marrow mesenchymal stem cel s in a concentration-dependent manner.

Objective To investigate the laboratory ifndings, clinical manifestations and treatment in hemolytic disease caused by red cell immune antibodies in neonates. Methods The laboratory and clinical data from 4 cases of hemolytic disease of neonates caused by red cell immune antibodies were retrospectively analyzed. Results IgG antibody were detected in all mothers of 4 cases during pregnancy and they were anti-E, anti-D, anti-Jkb and the autoantibody with the titer being 16, 2048, 1 and 16 respectively. The four neonates were all full-term. The jaundice appeared 6 h to 3 d after birth with varying degrees of skin stained yellow, with or without anemia. Serology and elution test found the existence of antibody same as the one on their maternal red cells and the titer was 4, 512, 0, and 2, respectively. All neonates were treated by phototherapy. Two servere cases were also treated by whole blood exchange and red blood cells transfusion. The prognosis were good in all neonates. Conclusions Prenatal immune hematological tests facilitated early detection of irregular erythrocyte antibodies and thus assessment of the risk of hemolytic dis-ease of the fetus and neonates.

Aim To explore the protective role of schisandrin B (SchB)against HK-2 damage induced by Cisplatin and the probable mechanism.Methods Cultivated HK-2 was interacted by Cisplatin and SchB with different concentrations.Invert microscope showed cellular form change and Flow Cyto Meter told apopto-sis.Combined with test result on the change of L-DH, MDA and LPO,probable protective effect of SchB on HK-2 was studied and analyzed.Result Cisplatin in-hibited cells′growth and induced apoptosis.20 μmol · L-1 SchB significantly reduced apoptosis of Cispla-tin-induced HK-2,and offered the best protection. SchB could reduce MDA,LPO,LDH significantly in-creased by cisplatin.Conclusion SchB can be an ef-fective inhibition agent of Cisplatin-induced renal tubu-lar epithelial cell apoptosis (HK-2 ).The mechanism can be the inhibition of Cisplatin-induced oxidative stress by antioxidant effect.

Moyamoya disease is a chronic progressive cerebrovascular disease. Its main manifestation is bilateral internal carotid artery progressive stenosis w ith abnormal vascular netw ork formation of the compensatory hyperplasia in brain base. The pathological mechanism of moyamoya disease is not clear. Grow ing evidence has suggested that immune inflammation may play an important role in its occurrence and development process. Abnormal expression of various inflammatory cytokines and immune proteins can be observed in patients w ith moyamoya disease. This article review s the possible mechanism of immune inflammation in moyamoya disease in recent years.