Humans ; Occupational Health ; Refuse Disposal

Adolescent ; Adult ; Aged ; Burns ; etiology ; microbiology ; Child ; Child, Preschool ; Drug Resistance, Bacterial ; Explosions ; Female ; Humans ; Male ; Middle Aged ; Wound Infection ; microbiology ; Young Adult

To study the correlation between traditional Chinese medicine (TCM) syndrome type and the ultrasound imaging changes in patients with limb lymphedema, and to provide evidence for TCM syndrome differentiation.

Objective To investigate if the administration of CORM-2 can provide protection against renal ischemia-reperfusion injury (IRI).Method Murine renal ischemia was induced by clamping left renal pedicles for 40 min with vascular micro damps at 32 C,then the contralateral kidney was removed.CORM-2 or vehicle was administered via intravenous infusion 1 h before the onset of ischemia.The blood plasma and renal samples were obtained at 24 h after reperfusion to assess renal function and cellular injury.Plasma Cr and BUN levels,HE and TUNEL were performed to estimate the magnitude of renal damage.Kidneys were retrieved from indicated animals at various time points after renal IRI,and the sections were prepared for histological evaluation.MPO staining procedures were performed to assess the neutrophils infiltration in the renal IRI.Besides,Immunofluorescent stain of TNF-α was performed on the kidneys which were retrieved from indicated animals to determine the production of inflammatory mediators in renal I/R.Results The plasma Cr and BUN were significantly increased at 24 h after reperfusion in IRI control mice,and CORM-2 treatment could markedly diminish the increase of plasma Cr and BUN in mice subjected to I/R.In parallel,histological analysis demonstrated that CORM2 treatment markedly reduced apoptosis of the renal tubular epithelium cells and hemorrhage.IRI caused marked infiltration and accumulation of the MPO-positive neutrophils in renal interstitium.Administration of CORM-2 before ischemia dramatically inhibited neutrophils infiltration as compared with IRI or iCORM-2 group.Furthermore,we confirmed that CORM-2 markedly decreased production of TNF-α.Conclusion Carbon monoxidereleasing molecule CORM-2 could ameliorate inflammation to protect against the renal IRI in mice.

OBJECTIVETo study the genotoxicity of components of diesel engine exhausts with ethanol-diesel blending fuel. To provide scientific arguments to find more economical and less polluted fuels.

METHODSAmes test, comet assay and GC-MS technique were used to test the genotoxicity and 16 kinds of PAHs on diesel engine exhausts with different proportions of ethanol (E0, E5, E10, E20).

RESULTSBoth Ames test and comet assay were positive. It shows that diesel engine exhausts can lead to mutation and DNA damage, especially in pure diesel oil. But the content of 16 kinds of PAHs and DNA damage level decreased in exhausts of E5. With the increase of ethanol proportion in diesel oil, the content of 16 kinds of PAHs and DNA damage level increased.

CONCLUSIONCompared with pure diesel oil and high proportion of ethanol fuel, E5 can reduce the genotoxicity and the brake specific exhausts of PAHs.

Air Pollutants ; toxicity ; Air Pollution ; Carbon Monoxide ; Comet Assay ; DNA Damage ; Ethanol ; toxicity ; Gasoline ; toxicity ; Mutagenicity Tests ; Particulate Matter ; Vehicle Emissions ; toxicity

In this study, the psbA-trnH sequence as DNA barcode was used to evaluate the accuracy and stability for identification pteridophyte medicinal material Pyrrosiae Foliumas from adulterants. Genomic DNA from 106 samples were extracted successfully. The Kimura 2-Parameter (K2P) distances and ML tree were calculated using software MEGA 6.0. The intra-specific genetic distances of 3 original plants were lower than inter-specific genetic distances of adulterants. The ML tree indicated that Pyrrosiae Folium can be distinguished from its adulterants obviously. Therefore, the psbA-trnH sequence as a barcode of the pteridophyte, can accurately and stably distinguish Pyrrosiae Folium from its adulterants.
Base Sequence ; DNA Barcoding, Taxonomic ; methods ; DNA, Ribosomal Spacer ; genetics ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; classification ; Ferns ; classification ; genetics ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; genetics ; Quality Control

OBJECTIVETo explore the clinical effects of anterior decompression and fusion with a nano-hydroxyapatite/ polyamide 66 (n-HA/PA66) cage in treating lower cervical fracture and dislocation.

METHODSFrom January 2008 to December 2010, the clinical data of 42 patients with lower cervical fracture and dislocation were retrospectively analyzed. There were 29 males and 13 females aged from 20 to 65 years old. The mean age was 46.8 years. Five cases got injuried in C3, 14 cases in C4, 12 cases in C5, 7 cases in C6 and 4 cases in C7. According to Frankel grade, 4 cases were classified in grade A, 11 cases in grade B, 13 cases in grade C, 9 cases in grade D and 5 cases in grade F. Twenty-eight cases were treated with anterior corpectomy and fusion and 14 cases with anterior discectomy and fusion. Frankel grade was used to do neurologic assessment and visual analogue scale (VAS) was used to evaluate the improvement of clinical symptoms. Segmental height and sagittal lordosis were measured by radiographs and cage location. Cage appearance and fusion status were assessed by 3D-CT images.

RESULTSAll patients were followed up for 3 to 5.2 years with an average of 4.1 years. Frankel grade had obviously improved than preoperative (Z = -4.845, P < 0.001). There were 2, 3, 11, 8, 11 cases classified in grade A, grade B, grade C, grade D and grade E respectively. At the third day after operation and latest follow-up,VAS was (2.6 +/- 1.8),(1.3 +/- 1.0) scores respectively. Both had improved than preoperative (P < 0.05). Up to the latest follow-up, there was only one patient (2.4%) with slight cage translocation (less than 2 mm), however, no cage prolapsed, or collapse, or breakage were found. Both segmental height and lordosis improved significantly after surgery (P < 0.001). And there was not significant difference in both parameters between each postoperative time points (P > 0.05). The mean distance of cage subsidence was 1.5 mm and the rate of cage subsidence (> 3 mm) was 4.8%.

CONCLUSIONThe n-HA/PA66 cage can not only restore and maintain the fusion segmental height and radian, but also promote the osseous fusion and profit the radiographic assessment after operation. Thus, it was an ideal material for prop graft.

Adult ; Aged ; Cervical Vertebrae ; injuries ; surgery ; Decompression, Surgical ; methods ; Female ; Humans ; Joint Dislocations ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fractures ; surgery ; Spinal Fusion ; methods

OBJECTIVETo observe the clinical efficacy of modified Wuhua Decoction (WHD) on corticosteroid addictive dermatitis (CsAD) and in improving patients' facial skin barrier function.

METHODSSeventy-five patients were randomly assigned to two groups, the 38 in the treated group treated with WHD together with oral administration of levocetirizine tablet, while the 37 in the control group treated with levocetirizine tablet alone in the same way, 30 days as a course. Skin erythema dose (ED) and transepidermal water loss (TEWL) of patients were measured before and after treatment.

RESULTSFive cases in the treated group and 7 cases in the control group were dropped out. The total effective rate was 69.7% (23/33 cases) in the treated group and 10.0% (3/30 cases) in the control group respectively, with the score of objective symptoms reduced from 5.48 +/- 1.60 before treatment to 1.24 +/- 1.62 after treatment and the score of subjective symptoms reduced from 7.06 +/- 1.54 to 1.55 +/- 1.72 in the treated group, while in the control group, the two indexes reduced from 5.57 +/- 1.25 to 3.27 +/- 1.55 and from 6.77 +/- 1.36 to 3.07 +/- 1.36 respectively, showing significant difference between the two groups and the efficacy in the treated group was better than that in the control group (P <0.01). Skin ED decreased significantly in the treated group after treatment, and insignificantly in the control group. TEWL began to decrease on the 15th day in the treated group, while it was unchanged in the control group; on the 30th day, although a decrease was shown in both groups, its reduction was lower in the treated group (P <0.05).

CONCLUSIONWHD has significant clinical efficacy on CsAD, it could reduce the skin ED and quickly recover the injured facial skin barrier function.

Adrenal Cortex Hormones ; adverse effects ; Dermatitis, Contact ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Face ; Humans ; Skin Physiological Phenomena ; drug effects ; Substance-Related Disorders ; complications

Kidney injury and decreased chemosensitivity of tumor cells are obstacles with cisplatin (CDDP) chemotherapy. Down-regulation of the organic cation transporter 2 (OCT2) and multidrug resistance-associated protein 2 (MRP2) is a key means to alleviate CDDP-induced kidney injury and increase chemosensitivity. Astragaloside IV (AS IV) is obtained from the well-known traditional Chinese herb Astragalus membranaceus. This study explored the role of AS IV in preventing kidney injury and enhancing the antitumor effect of CDDP by suppressing OCT2 expression in kidney and MRP2 in tumors. This project was reviewed and approved by the Animal Ethics Committee of the First Hospital of Jilin University. The effects of AS IV on CDDP inhibition of tumor growth and promotion of apoptosis were assessed in Lewis lung tumor (LLC)-bearing mice by H&E and TUNEL staining. Kidney injury was assessed by serum biochemical parameters and H&E staining. We used Western blotting and immunohistochemistry assays to detect OCT2 and MRP2 expression in kidney and tumor. The concentration of CDDP in kidney and tumor was measured by HPLC-MS/MS. AS IV enhanced CDDP chemosensitivity by increasing tumor cell apoptosis and slowing tumor growth, and decreased kidney injury as evidenced by lower blood creatinine (Cr) and blood urea nitrogen (BUN). Co-administration of AS IV suppressed MRP2 overexpression induced by CDDP in tumor tissues and may be an important mechanism for enhancing CDDP chemosensitivity. Moreover, AS IV reduced CDDP-induced kidney injury in mice along with suppression of OCT2 expression in kidney. The concentration of CDDP was increased in tumor but decreased in kidney. In total, AS IV not only enhanced the antitumor effect of CDDP by suppressing MRP2 expression in tumor cells, but also decreased kidney injury induced by CDDP. The results provide new insight into the combined use of a chemotherapy drug and natural ingredients to treat cancer.

Objective:To investigate the effects of estradiol on ~(60)Co?-ray induced apoptosis of bone marrow hematopoietic cells of mice,and to discuss the related anti-irradiation mechanism.Methods:KM mice were randomly divided into 3 groups(15 mice/each group):control group(without radiation),pure radiation group and estradiol+radiation group(ER group).The pure radiation group was irradiated by 4.0 Gy?-ray at a dose rate of 1.15Gy/min;the ER group was administered with 0.1 mg estradiol(IM)at 10 days before 4.0 Gy?-ray radiation;and the control group received no special treatment.The apoptotic DNA segments of bone marrow hematopoietic cells were analyzed by DNA agarose gel electrophoresis;flow cytometry was used to examine the apoptosis rate of cells and expression of Fas and Bcl-2 at 4 h,8 h,and 12 h after irradiation.Results:Eight hours after radiation,the apoptotic DNA segments were obviously increased and apoptotic DNA ladder appeared,which was not seen in the other 2 groups.The apoptosis rate of bone marrow hematopoietic cells in ER group was significantly lower than that in the pure radiation group at 4,8,and 12 h after irradiation(P