Plasma thyroid hormones were measured in 8 patients with severe acute respiratory syndrome (SARS). The results showed that plasma TT_3 and FT_3 levels were decreased and plasma rT_3 level tended to increase in these patients. These findings are in accord with the diagnosis of low T_3 syndrome.

Objective To improve the understanding of clinical features,pathological changes and therapy in patients of severe primary hypothyroidism accompanied with myoapthy.Methods Clinical features and prognosis of five cases of primary hypothyroidism accompanied with severe myopathy admitted to the hospital during March 1996 to November 2003 were anaylzed retrospectively by medical records combined with review of relevant literatures.Results Prominent clinical manifestations of the five patients were muscular damage,symmetrical proximal weakness of the muscles(myasthenia),shortness of breath,chest pain,dysphagia,and significant increase in activity of serum creatine phosphokinase(2 885~10 450(U/L).)Conclusions Patients of primary hypothynoidism with muscular damage should be diffrentiated from those of polymyositis and better effectiveness can be achieved for its related myopathy by timely thyroid hormone replacement therapy.

Abdominal Pain ; Cough ; Humans

0.005.The management center of Chinese Hematopoietic Stem Cell Donor Database checked the information through the network,and there had been 20 cases of successful transplantation using stem cells donated by Heilongjiang donors by March 2007.ConclusionDistribution of HLA-A,B,DRB1 alleles and haplotypes in Heilongjiang Chinese Han is close to that in Northern Chinese Han population,similar to that of the whole Chinese Han population.

Alkanes ; toxicity ; Animals ; Chromosome Aberrations ; Mice ; Mice, Inbred ICR ; Micronucleus Tests ; Mutagenicity Tests ; Mutagens ; Rats ; Rats, Sprague-Dawley ; Teratogens

Objective To assess the toxicity of anthracyclinc to left ventricle function in patients withbreast cancer,and to compare the clinical values between two-dimensional speckle tracking echocardiography (2D-STE) and 3D-STE.Methods 50 patients with breast cancer who had received surgical treatment and epirubicinbased chemotherapy were recruited to study groups.All the patients had undergone up to 6 cycles of chemotherapy.Different stages wcre identified according to accumulated doses of epirubicin reaching 0 mg/m2,120 mg/m2,240 mg/m2 and 360 mg/m2.2D-STE and 3D-STE parameters were measured before chemotherapy and after different stage of chemotherapy.The receiver operating characteristics curves (ROC) of parameters (2D-GLS,3D-GLS,3D-GCS,3DGAS) were graphed to evaluate the specificity and sensitivity of detecting dysfunction of the left ventricles.25 healthy volunteers were recruited to a control group.Results As compared with the control group and the baselines,2D-GLS and 3D-GCS was significantly declined (P ＜ 0.05),3D-GAS and 3D-GLS were significantly lowered after interim period and later period (P ＜ 0.05),while 3D-GRS was not changed significantly during the whole chemotherapy period.The ROC curves revealed the sensitivity of 2D-GLS,3D-GCS,3D-GLS and 3D-GAS for assessing dysfunction of the left ventricles was 60.7％,65.3％,62.7％,and 80.7％,while the specificity was 50.0％,54.0％,64.0％,and 82.0％,respectively.Conclusions As compared with 2D-STE,3D-STE can detect the dysfunction of left ventricles earlier and more accurately.Furthermore,the specificity and sensitivity of 3D-GAS are the highest among all parameters in detecting the early dysfunction of left ventricles.

microRNAs (miRNAs) are a recently discovered family of small non-coding RNAs, which exist in eukaryotes and regulate gene expression post-transcriptionally by binding to complementary sites on target mRNAs. MiRNAs play important roles in regulation of cell proliferation, development, apoptosis and cell differentiation. It’s predicted that about 1% human known genes encode microRNAs and microRNAs may regulate 10～30%of the genes in the human genome. The paper focus on the knowledge about how to recognize miRNAs and identify their target mRNAs.

Objective To research the expression change and the sense of histone acetylation and p21WAF1 protein in breast cancer. Methods Pathological morphologic changes of breast cancer were identified by H. E. staining. Immunohistochemical study for p21WAF1 protein expression was performed on 80 breast cancers and 80 normal breast tissues. The expressions of acetylated histone H3, H4 and p21WAF1 protein in 80 breast cancers and 80 normal breast tissues were analyzed by Western blot. Results H.E. staining discovered that the tissue structure and cell morphous of breast cancer had visible atypia, compared with normal breast tissues. The immunohistochemical results displayed that the positive expression of p21 WAF1 in 80 breast cancers and 80 normal breast tissues was 49 cases(61.25 %) or 3 cases (3.75%), respectively. There was significantly difference in the expression level between the 80 breast cancers and 80 normal breast tissues (P ＜ 0. 05). The expression levels of p21WAF1 protein in breast cancer tissues were higher than that in normal breast tissues, 0. 78 ± 0. 095 or 0. 65 ± 0. 055, respectively. The expression levels of acetylated histone H3, H4 protein in normal breast tissues were higher than those in breast cancer tissues. H3 was 2. 35 ± 0. 340 or 1.07 ± 0. 067, respectively, H4 was 3.44 ± 0. 202 or 1.11 ± 0. 086, respectively. There was significantly difference in the expression levels between the 80 breast cancers and 80 normal breast tissues (P ＜0. 01). Conclusions The occurrence and development of breast cancers may be related to the expression change of histone acetylation and p21WAF1 protein.

To investigate the relationship between plasma level of homocysteine(Hcy) and the methylenetetrahydrofolate reductase ( MTHFR ) gene polyroorphism with non-alcoholic fatty liver in patients with type 2 diabetes mellitus (T2DM). Methods In a case-control study, plasma levels of Hcy, folic acid (FA), vitamin B12 (VitB12), glycosylated hemoglobin Alc (HbAlc), fasting blood glucose (FBG), total cholesterol and triglyceride were measured in 159 T2DM patients with and without non-alcoholic fatty liver ( NAFL), as well as 52 normal controls. Mutation of the C677T of MTHFR gene was determined by polymerase chain reaction-restricted fragment length polymorphism (PCR-RFLP) for all of them. Results Patients of T2DM both without NAFL (96 case) and with NAFL had higher prevalence of hyperhomocysteinemia (Hhcy) (49% and 21%, respectively ) than normal controls did (4 cases, 8% ) (P<0.05), while patients of T2DM with NAFL had higher prevalence of Hhcy than those without it did (P <0. 05). Plasma level of Hey positively correlated to genotype frequency of the MTHFR gene, plasma 0levels of HbAlc and FBG in patients of T2DM, with coefficients of correlation of 0.248, 0.423 and 0.242, respectively (P < 0.05). Results of multiple logistic regression analysis showed that course of the disease, body mass index, plasma levels of FBG and Hcy all were independent risk factors for non-alcoholic fatty liver in patients with T2DM. Conclusions Hhey was an independent risk for non-alcoholic fatty liver and plasma level of Hey was influenced by frequency of the TT genotype of the MTHFR gene, plasma levels of FA and VitB12, as well as metabolic disturbance in patients with T2DM.

BACKGROUND: Human adipose tissue-derived stromal cells (ADSCs) possess exert proliferation and multi-directional ability. As a novel stem cell, it has been widely utilized in tissue engineering and plays an important role in biological and potential therapeutic applications.OBJECTIVE: To review the research progress, applications and existing problems of human ADSCs in tissue engineering and cell therapy by retrieving relevant publications. METHODS: PubMed and CNKI databases were undertaken to identify the relevant articles published from January 1960 to January 2009 with the key words of "human adipose tissue-derived mesenchymal cells, isolation, differentiation, immune phenotype, application" both in English and Chinese. The articles relate to biological characteristics and applications of ADSCs were selected. In the same field, the documents published earlier or in the authoritative journals were preferred, and the repetitive studies were excluded. RESULTS AND CONCLUSION: A total of 81 documents were searched by computer, and 57 references were included in the final analysis. The results demonstrated that, human ADSCs share many characteristics, including the high proliferative potential and exhibiting the exert ability to undergo multilineage differentiation under appropriate conditions. Human ADSCs can not only utilize for tissue repairing, but also for cell immune modulation and gene therapy. However, there are still problems in its application. With the development of research on human ADSCs, their biological characteristics will be revealed, and their application in tissue repairing, cell therapy, transplantation, as well as gene therapy must be hold a great promise.