Acute Pancreatitis Complicated by Sheehan's Syndrome: A Case Report and Literature Review / 中国医学科学杂志(英文版)

A 44-year-old woman was transferred to the ICU of the First Affiliated Hospital of Jinan University for 2 days of persistent epigastric pain and 7 hours of unconsciousness. Her admission diagnosis was severe acute necrotizing pancreatitis (hypertriglyceridemia type) with multiple organ dysfunctions. The results of CT revealed a small area of necrotizing pancreatitis, which was not consistent with the severe clinical manifestations. Considering lack of hair and history of postpartum hemorrhage, hormone examination was carried out. According to the results of the examination, she was further diagnosed as Sheehan's syndrome and pituitary crisis. After hormone replacement therapy, her condition improved rapidly.

Andrographolide as an anti-H1N1 drug and the mechanism related to retinoic acid-inducible gene-I-like receptors signaling pathway / 中国结合医学杂志

<p><b>OBJECTIVE</b>To observe the anti-virus effects of andrographolide (AD) on the retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs) signaling pathway when immunological cells were infected with H1N1.</p><p><b>METHODS</b>Leukomonocyte was obtained from umbilical cord blood by Ficoll density gradient centrifugation, and immunological cells were harvested after cytokines stimulation. Virus infected cell model was established by H1N1 co-cultured with normal human bronchial epithelial cell line (16HBE). The optimal concentration of AD was defined by methyl-thiazolyl-tetrazolium (MTT) assay. After the virus infected cell model was established, AD was added into the medium as a treatment intervention. After 24-h co-culture, cell supernatant was collected for interferon gamma (IFN-γ) and interleukin-4 (IL-4) enzyme-linked immunosorbent assay (ELISA) detection while immunological cells for real-time polymerase chain reaction (RT-PCR).</p><p><b>RESULTS</b>The optimal concentration of AD for anti-virus effect was 250 μg/mL. IL-4 and IFN-γ in the supernatant and mRNA levels in RLRs pathway increased when cells was infected by virus, RIG-I, IFN-β promoter stimulator-1 (IPS-1), interferon regulatory factor (IRF)-7, IRF-3 and nuclear transcription factor κB (NF-κB) mRNA levels increased significantly (P<0.05). When AD was added into co-culture medium, the levels of IL-4 and IFN-γ were lower than those in the non-interference groups and the mRNA expression levels decreased, RIG-I, IPS-1, IRF-7, IRF-3 and NF-κB decreased significantly in each group with significant statistic differences (P<0.05).</p><p><b>CONCLUSIONS</b>The RLRs mediated viral recognition provided a potential molecular target for acute viral infections and andrographolide could ameliorate H1N1 virus-induced cell mortality. And the antiviral effects might be related to its inhibition of viral-induced activation of the RLRs signaling pathway.</p>

Carboxymethylpachymaran enhances immunologic function of dendritic cells cultured in two kinds of hepatoma carcinoma cell line's supernatant via nuclear factor κ B/Rel pathway / 中国结合医学杂志

<p><b>OBJECTIVE</b>To study the immunologic function of dendritic cells (DCs) cultured in two kinds of hepatoma cell line's supernatant and the enhancing effects of carboxymethylpachymaran (CMP) on DCs.</p><p><b>METHODS</b>DCs were harvested after stimulation by granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin (IL)-4 from umbilical cord blood using density-gradient centrifugation method. Cultured supernatant of two hepatoma cell lines (HepG2 and HepG2.2.15) were collected for condition medium (CM) according to a volume ratio of supernatant to incomplete RPMI-1640 medium, which was 3:1. CMP was dissolved in incomplete RPMI-1640 medium. Experimental groups were divided according to the culture medium, either CM or with CMP in it. DCs subsets CD83, CD86, CD1a, and d-related human leukocyte antigens (HLA-DR) were analyzed by flow cytometry. The proliferation ability of allogeneic T cells in mixed lymphocyte reaction (MLR) stimulated by DCs was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) analysis. IL-12p70, interferon-γ (IFN-γ), and nuclear factor κB (NF-κB) were detected by enzyme-linked immunosorbent assay analysis.</p><p><b>RESULTS</b>The proliferation of lymphocytes and secreting level of IL-12 and expression of phenotype of DCs cultured in two kinds of CM were lower than those of normal group (P <0.01). Compared with the normal group, groups treated with CMP showed a higher expression level of DCs subsets, lymphocyte reproductive activity, as well as IL-12 and IFN-γ secretion levels. Groups treated with CMP also demonstrated higher levels of DCs phenotype expression and IL-12 and IFN-γ secretion in supernatant of MLR and higher lymphocyte reproductive activity compared with CM group (P <0.05). Compared with the normal group, the expression level of NF-κB in DCs nuclear was higher in CMP groups but lower in two CM groups (P <0.05). After CMP was added, the NF-κB expression levels of two CM groups were increased compared with levels before CMP was added (P <0.05). However, there was no significant difference between the two CM groups (P >0.05).</p><p><b>CONCLUSIONS</b>Two kinds of hepatoma cell line's supernatant can inhibit the immunologic function of DCs. This suppressive effect may be related to the inhibition of NF-κB/Rel pathway. CMP may up-regulate the DCs function by activating the NF-κB/Rel pathway.</p>