Objective To understand the status of indoor air formaldehyde pollution in a certain city in China.Methods 50 newly decorated houses in a certain city were chosen and the formaldehyde concentration in indoor air in different types of room were determined.Results The formaldehyde concentrations in indoor air in 56.6% of the investigated 50 houses exceeded the State Standard.And the highest concentration was 1.05 mg/m3 which was 10.5 times of the limit in the State Standard.Child's bedrooms were most seriously polluted,73% of which exceeded the State Standard.Conclusion The status of indoor air formaldehyde pollution in the newly decorated houses in a certain city in China is serious,this problem needs to be paid more attention to.

Cholangiolocellular carcinoma (CLC) is a rare type of primary liver cancer,which is thought to originate from hepatic progenitor cells.CLC is categorized as a different tumor type from the conventional intrahepatic cholangiocarcinoma (cICC) due to its unique histological and embryological features.This review summarizes the clinical,radiological and pathological characteristics and surgical outcomes of cICC and CLC.This pathological classification may provide important clinical implications for the treatment and outcome evaluation of this disease.

OBJECTIVE:To discuss the application of pharmacoeconomics in "Treating Preventable Diseases" in traditional Chinese medicine. METHODS:Based on the brief introduction of pharmacoeconomics and the theory of "Treating Preventable Diseases",and taking preventing cerebral infarction by using drugs for invigorating blood circulation and eliminating stasis as example to analyze the feasibility and significance of pharmacoeconomics in the study of "Treating Preventable Diseases". RESULTS & CONCLUSIONS:The application of pharmacoeconomics in evaluating the theory of "Treating Preventable Diseases" will establish an objective evaluation system of Traditional Chinese Medicine and guide the rational use of drugs in clinic.

Glucaric acid (GA) is derived from glucose and commonly used in chemical industry. It is also considered as one of the "Top value-added chemicals from biomass" as carbohydrate monomers to produce various synthetic polymers and bioenergy. The demand for GA in food manufacture is increasing. GA has also attracted public attentions due to its therapeutic uses such as regulating hormones, increasing the immune function and reducing the risks of cancers. Currently GA is produced by chemical oxidation. Research on production of GA via microbial synthesis is still at preliminary stage. We reviewed the advances of glucaric acid applications, preparation and quantification methods. The prospects on production of GA by microbial fermentation were also discussed.
Biomass ; Chemical Industry ; Fermentation ; Glucaric Acid ; chemistry ; Glucose ; Polymers

Objective To compare the effect of allograft and autograft of bone-patellar tendon- bone (B-PT-B) under arthroscopy in reconstruction of anterior cruciate ligament (ACL).Methods The injured ACL was reconstructed under arthroscopy by using autograft of B-PT-B in 30 cases and al- lograft of B-PT-B in 28 cases from January 2000 to August 2003.After over twelve months follow up,a comparison was done on rehabilitation of quadriceps femoris,knee stability,the Lysholm's score of knee and the enlargement of tunnel in both groups.Results Both groups obtained marked improvement of knee stability and symptoms after operation.But in the early time,the rehabilitation of quadriceps femoris in the ailograft group is faster than that in the autograft group.The rehabilitation of quadriceps femoris, knee stability and the Lysholm's score of knee were similar at 12th month (P＞0.05).There could be seen enlargement of tunnel in both groups,with more in the allograft group (P＞0.05).Conclusion For arthroscopic reconstruction of anterior crucial ligament (ACL),allograft of B-PT-B is good substitute, for it is characterized by effectiveness,convenience and minor side effect.

Objective To compare the different expressions of transforming growth factor beta1 (TGFβ1) and its type one receptor(TGFβR1) between primary pancreatic cancer cell line AsPC-1 and metastatic pancreatic cancer cell line BxPC-3. Methods The mRNA expressions of TGFβ1 and TGFβR1 in AsPC-1 and BxPC-3 pancreatic carcer cell lines were quantatitived by real-time RT-PCR. The protein levels of TGFβ1 and TGFβR1 in these two cell lines were measured by Western blot assay. Results Compared with the primary pancreatic cancer cell AsPC-1, the mRNA and protein expressions of TGFβ1 and TGFβR1 were much higher in BxPC-3 pancreatic cancer cells(P<0.05). Conclusions Upregulations of TGFβ1 and TGFβR1 might be a pivotal incidence in the procedure of malignant progressing and metastasis in pancreatic cancer cells.

The human immunodeficiency virus type 1(HIV-1)can interact with and exploit the host cellular machinery to replicate and propagate itself.Numerous studies have shown that the Mitogen-activated protein kinase(MAPK)signal pathway can positively regulate the replication of HIV-1,but exactly how each MAPK pathway affects HIV-1 infection and replication is not understood.In this study,we used the Extracellular signal-regulated kinase(ERK)pathway inhibitor,PD98059,the Jun N-terminal kinase(JNK)pathway inhibitor,SP600125,and the p38 pathway inhibitor,SB203580,to investigate the roles of these pathways in HIV-1replication.We found that application of PD98059 results in a strong VSV-G pseudotyped HIV-1NL4-3 luciferase reporter virus and HIV-1NL4-3 virus inhibition activity.In addition,SB203580 and SP600125 also elicited marked VSV-G pseudotyped HIV-1NL4-3 luciferase reporter virus inhibition activity but no HIV-1NL4-3 virus inhibition activity.We also found that SB203580 and SP600125 can enhance the HIV-1 inhibition activity of PD98059when cells were treated with all three MAPK pathway inhibitors in combination.Finally,we show that HIV-1virus inhibition activity of the MAPK pathway inhibitors was the result of the negative regulation of HIV-1 LTR promoter activity.

Objective To determine the association between fatty liver and coronary risk fcators in elderly men. Methods A cross-sectional study of 920 elderly men with or without fatty liver and obesity was performed in 2002. Age, body mass index (BMI), GPT, cholesterol, triglyceridemia, fast glucose, mean blood pressure, smoking and drinking consumption were analyzed. Results The prevalence of fatty liver was 11.1% in the non-obese participants (BMI

Objective The patients with non-syndromic deafness in Shanxi Province were retrospectively an_alyzed for the common deafness gene mutations and frequency of mutations carrying rate ,to understand the molecu_lar pathogenesis of deafness in Shanxi area .Methods Genomic DNAs of 800 patients of non -syndromic deafness within Shanxi were obtained from peripheral blood .Genes GJB2 ,GJB3 ,SLC26A4 and mitochondrial 12SrRNA 1494 and 1555 loci were sequenced after polymerase chain reaction (PCR) amplification and compared with the NCBI website for the analysis of the formation of mutations .ResuIts Among 800 patients ,353 cases (44 .13% ) showed detected deafness related mutations and the genetic etiology was found for 294 patients (36 .75% ) .Among them , 153 cases (19 .13% ) carried double allele mutations in the GJB2 gene .The most frequent mutation of GJB2 gene was 235delC ,and the carrying rate was 13 .5% (216/1 600) .The double mutant allele of SLC26A4 gene was detec_ted in 123 cases (15 .38% ) ,and the most common mutation was IVS7-2A>G ,identified in 7 .44% (119/1 600) of patients .Homogenic mitochondrial 12S rRNA 1494C> T mutation in one patient and 1555A> G mutation in 15 patients were detected .GJB3 gene c .538C > T heterozygous mutation was found in two patients .Altogether , 36 .75% (294/800) of patients with deafness were caused by gene mutations .ConcIusionThe data containing GJB2 gene and SLC26A4 gene carrying rate are consistent with the published data of non-syndromic deafness in the Northwest region of China ,but the carrying rate of mitochondrial gene mutations is lower than the average level of China .Our data show that the gene mutations contribute to 36 .75% of etiology in patients with deafness .This study reflects the importance of deafness related genes screening in Shanxi area for early diagnosis and genetic con_sultation .

Objective To evaluate the feasibility and indications of endoscopic submucosal dissection (ESD) by analyzing the early gastric cancer cases.Methods All the pathological materials of radical gastric resections in Huashan hospital from 2007 to 2011 were retrieved and the EGC cases were selected.All the cases in EGC group which met the extended ESD criteria were reviewed.Extended ESD criteria were cited from Treatment guidelines for gastric cancer in Japan edited by JGCA in 2001.The risk factors relevant with regional metastasis,such as invasive depth and differentiation degrees,were also analysed.Results In the recent five years,there were 1159 cases of gastric cancer undergoing radical gastrectomy in Huashan hospital including 210 EGC.According to the extended criteria of JGCA,151 cases could be candidates for ESD while 126 cases could be candidates for ESD according to the typical criteria for ESD.The local metastases of lymphatic or vascular involvement for mucosa cancer,muscularis mucosae cancer,sm1 and sm2 cancer were 6.75％,15.00％,23.25％,and 39.62％ respectively (P ＜0.05).Twenty-five cases had local metastases that met the extended criteria for ESD.Within the 210 EGC cases,the local metastases of differentiated type and undifferentiated type were 13.95％ and 47.37％ respectively (P ＜ 0.05).Conclusion Most EGC cases undergoing radical gastrectomy can be cured by ESD.Its metastases are highly correlated with invasion depth and differentiation,so indications of ESD should be assessed.