Objective:To analyze the gene polymorphisms at code 54 of exon 1 in mannose-binding lectin(MBL) gene and the palsma MBL concentrations in Mongols and Huis in China.Methods:MBL plasma concentrations were measured by ELISA method with human MBL ELISA kit,Single nucleotide polymorphisms of MBL gene were determined with sequence analysis method.Geneticanalysis was deployed with SHEsis software,and the statistics package for social science,SPSS11.0 was used in the study.Results:The median values of MBL plasma in 79 Mongols and 69 Huis were 1 686 ng/ml and 1 909 ng/ml respectively and no significant difference was found between them(Z=0.63,P=0.4).In 79 Mongols,the variant allele frequencies of the codon 54 of MBL gene was 0.203,62.0% of the 79 cases were A/A exon type,while 35.4% were A/B type and 2.50% were B/B type instead.In all 69 Huis,the variant allele frequencies was 0.268,58.0% of 40 cases were A/A exon type,while 30.4% were A/B type and 11.6% were B/B type instead.The frequency of point mutation at +230 site was 0.203.No significant difference of variant allele frequencies was found between the Mongols and Huis nationalities(?2=1.772,P=0.183).Neither C nor D exon type were found in the study.The A/A wild type was associated with the highest plasma concentration with median values,the A/B type was associated with lower MBL levels and the B/B type with the lowest levels(?2=86.526,P

To study the antiviral effect of Hypericum perforatum L. extract (HPE) on influenza A virus (IAV) (H1N1) in vitro and in vivo. Cytopathic effect (CPE) and neutral red (NR) dye uptake were used to examine the antiviral effect of HPE on Madin Darby Canine Kidney (MDCK) cells which were infected with IAV in vitro. HPE was effective against influenza A virus (IAV) in vitro, with a 50% effective concentration (EC50) of 40 μg/mL. The mean 50% cytotoxic concentration (CC50) in the MDCK used in these experiments was 1.5 mg/mL. Ribavirin was run in parallel with EC50 values of 5.0 μg/mL; the mean CC50 for ribavirin was 520 μg/mL. Oral gavage administrations of HPE or ribavirin to mice infected with the IAV were highly effective in preventing death, slowing the decline of arterial oxygen saturation, inhibiting lung consolidation and reducing lung virus titers. The minimum effective dose of HPE in these studies was 31.25 mg/kg/day, which was administered twice daily for 5 d beginning 4 h prior to virus exposure. Below a dosage of 2000 mg/kg/day, almost all treated mice survived, which suggests that HPE is of low toxicity. Ribavirin's minimum effective dose was 40 mg/kg/day with the LD50 determined to be 200 mg/kg/day. Delay of the initiation of either HPE or ribavirin therapy, using approximately 1/3 LD50 dose each time, could still be protective as late as 48 h after exposure to the IAV. While both agents appeared to have similar efficacy against IAV infections, HPE was considered to be less toxic and may warrant further evaluation as a possible therapy for influenza.

Traditional Chinese medicine (TCM) experienced a gradual course in recognition of the toxicity of Cinnabaris from "nontoxic" to "toxic". The ancient doctors of TCM understood both the toxic property and the regularity of increasing toxicity of Cinnabaris. In long-term clinical practice they developed the methods of detoxification guiding the safe use of Cinnabaris. The toxicity of Cinnabaris is produced by mercury existed in it. Improper administration leading to an acute absorption or chronic accumulation was the main cause of clinical adverse effects. Kidney was the main poisoning target organ. On the other hand, improperly combinative application of Cinnabaris with other drugs of TCM or western medicine could increase the toxicity. Therefore, the crucial approach to avoid the poisoning is to use Cinnabaris properly.
Animals ; History, 16th Century ; History, 17th Century ; History, 20th Century ; History, Ancient ; Hot Temperature ; Humans ; Materia Medica ; history ; toxicity ; Mercury Compounds ; history ; toxicity ; Mercury Poisoning ; etiology ; Sulfates ; history ; toxicity

Human immunodeficiency virus(HIV) infection may result in serious impairment of the immune system in HIV-posi-tive patients. Both HIV productions and highly active antiretrovi-ral therapy (HAART) drugs can cause neuropathy, including the HIV associated neurocognitive disorders (HAND) and the peripheral neuropathy. Several animal models have been devel-oped in an attempt to study the mechanisms of HIV relative neu-ropathies. This review focuses on researching HIV-1 associated neuropathies by application of HIV-1 animal models.

This article made a brief analysis of clinical adverse effects of cinnabar. Except for allergic reaction, almost all the adverse events of cinnabar were caused by unreasonable application. The majority of the poisoning cases were associated with excessive and/or long-term dosage, and improper preparation methods, such as decocting, heating or fumigating. Children showed to be prone to poisoning. The poisoning caused by unreasonable use of cinnabar should be considered to be drug alert, but not advert effect. And the toxicity of cinnabar could be avoided by normalizing the preparation method, controlling the dosage and duration.
Chemical and Drug Induced Liver Injury ; etiology ; Coma ; chemically induced ; Drug Compounding ; adverse effects ; Drug Incompatibility ; Drug Overdose ; Gastrointestinal Diseases ; chemically induced ; Humans ; Hypersensitivity ; etiology ; Mercury Compounds ; adverse effects ; poisoning ; Mercury Poisoning ; prevention & control ; therapy

NAS preparation, a kind of Chinese herbal medicine found by the Yunnan Eco-agricultural Research Institute, has potential antiviral activity. In this paper, the inhibiting effect of NAS preparation on H9N2 subtype Avian influenza virus (AIV) was investigated in vivo. Chickens infected with H9N2 virus were treated with NAS preparation for 4 days. The virus was then detected by hemoagglutination (HA) test and reverse transcription polymerase chain reaction (RT-PCR). The results showed that no H9N2 virus could be detected at the 7th day when the chickens were treated with 0.2g/kg/d or 0.1g/kg/d of NAS preparation. However the virus could be detected in other chickens without NAS preparation treatment. This result suggested that NAS preparation may be a potential drug candidate to control infection of H9N2 subtype AIV in chickens.

OBJECTIVETo investigate the role of Maspin protein in the development of oral squamous cell carcinoma (OSCC), with the effort to realize practical diagnosis use of them.

METHODSThe expression status of Maspin protein in 45 cases of OSCC, 33 cases of paratumor tissue and 15 cases of normal tissue was examined by immunohistochemical staining.

RESULTSThe positive rates of Maspin protein were 86.67% (13/15), 72.73% (24/33) and 37.78% (17/45) in normal tissue, paratumor tissue and OSCC. The expression of Maspin protein increased respectively in OSCC, paratumor tissue and normal tissue. The expression were different between OSCC and normal tissue, OSCC and paratumor tissue, paratumor tissue and normal tissue (P<0.05). The expression of Maspin protein was correlated with lymph node metastasis, histological grade (P<0.05), but not with TNM staging (P>0.05).

CONCLUSIONMaspin protein may play an important role in the development of OSCC. The expression level of Maspin protein detected in early time might be a useful prognostic marker for the diagnosis of lymph node metastasis.

Aged ; Carcinoma, Squamous Cell ; Female ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Mouth Neoplasms ; Neoplasm Staging ; Serpins

The clinical data of one case of infantile myofibromatosis of left mandibular angle were analyzed, and the clinicopathological characteristics, imaging diagnosis, treatment and prognosis of infantile myofibromatosis were discussed.
Humans ; Myofibromatosis ; congenital

Objective To evaluate the clinical and pathological feature,as well as risk factors of lymph node metastasis (LNM) and high-volume LNM (hvLNM) in papillary thyroid microcarcinoma (PTMC) with di ameter ≤0.5 cm.Methods PTMC patients who received surgical treatments in Peking Union Medical College Hospital from Nov.2013 to Nov.2014 were reviewed.Patients were allocated into the ≤0.5 cm group and (0.5-1)cm group according to tumor diameter.Clinical and pathological features were assessed and compared.Risk factors of LNM and hvLNM were also assessed through univariate and multivariate analysis.Results 1414 patients were enrolled,of which 315 patients (22.3％) were in the ≤0.5 cm group.76 LNM (24.1％) and 9 hvLNM (2.9％) were detected in the ≤0.5 cm group.There was significantly less capsule invasion (14.3％ vs 25.0％,P＜0.05),LNM (24.1％ vs 39.8％,P＜0.05) and hvLNM (2.9％ vs 7.9％,P＜0.05) in ≤0.5 cm group than in (0.5-1)cm group.In univariate analysis,patients aging ＜40 years old were more likely to have LNM than those older than 40(38.0％ vs 20.1％,P＜0.05),while male patients tended to have more LNM than female (32.4％ vs 21.9％,P=0.073).No risk factors were identified for hvLNM.In multivariate analysis,multifocality and younger than 40 years old were the independent risk factors of LNM (OR=2.082 and 2.899,P＜0.05),while male tended to be the independent risk factors of LNM (OR=l.807,P=0.058).No independent risk factors was identified for hvLNM.Conclusions A certain proportion of PTMC patients are with tumor diameter ≤0.5 cm,who have lower risk of LNM and hvLNM.Dynamic observation may be an option,especially in older ≥40 years old),unifocal and female patients.

OBJECTIVETo explore the protecting mechanism of Yixintong for heart ischemia-reperfusion injury at cellular and subcellular levels, by observing the effects of Yixintong on three kinds of calcium channels.

METHODThe effects of Yixintong on Ca2+ influx on leak calcium channel, receptor-operationg calcium channel (ROC) and pulse-dependent calcium channel (PDC) were observed respectively, by using rat aortic smooth muscle cell and radioactive 45Ca technique.

RESULTYixintong has no effects on leak calcium channel, but can inhibit the Ca2+ influx in ROC and PDC significantly.

CONCLUSIONYixintong can inhibit the Ca2+ influx in slow channel in a dose-dependent manner.

Animals ; Aorta ; cytology ; Calcium Channels ; drug effects ; Crataegus ; chemistry ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Flavonoids ; isolation & purification ; pharmacology ; Male ; Muscle, Smooth, Vascular ; cytology ; Myocytes, Smooth Muscle ; drug effects ; Plant Leaves ; chemistry ; Plants, Medicinal ; chemistry ; Rats ; Rats, Wistar