Objective To investigate the present situation of water benzo (a) pyrene contamination in China and to make an ecological risk assessment. Methods B(a)P, one of the 16 prior-controlled polycyclic aromatic hydrocarbons pollutants selected by US EPA, is used to reflect the potential risk of PAHs, a strong carcinogen. Since the content of B(a)P in water is rather low, the contamination levels in the sediment of domestic water environment are assessed with two ecological assessment standards: risk assessment guidelines of chemical concentrations in marine and estuary sediments and sediment quality guidelines for the protection of aquatic life and probable effects levels for adverse biological effects. Results The contents of B(a)P were 0.06-707.12 ng/g in sediment of rivers and lakes, 7.1-1 492.12 ng/g in surface sediment of seaports, marines, and tidal flats respectively. Conclusion Domestic water environment is generally suffered from B(a)P contamination, but still under the adverse effect level.

0.05),APACHEⅡ score,and mortality were higher than those in negative group(P

Cervical spinal manipulation is considered to be a safe procedure for treating patients with neck pain and muscle-tension headache. Rarely has acute cervical spinal epidural hematoma after spinal manipulation been reported. Here, we report a 16-year-old healthy male adolescent who presented with progressive weakness in the right extremities following acute neck and shoulder pain after spinal manipulation from Acute cervical spinal epidural hematoma with compression of spinal cord. After emergency surgery the patient had full recovery from the profound neurological deficits.
Hematoma, Epidural, Spinal

Withanolide A is a biologically active secondary metabolite occuring in roots and leaves of Withania somnifera. In the present study, adventitious roots from leaf explants of W. somnifera were induced for the production of withanolide-A by Agrobacterium tumefaciens strain C58C1 to obtain hair roots. Hair roots induction rate reached 30%. The withanolide A was determined by HPLC in different hair roots lines and different parts of W. somnifera. The average content of withanolide A in all hair roots lines were 1.96 times as high as that in wild-plant, the concentration of withanolide A in hair roots (1.783 mg x g(-1) dry weight) were 1.51 times as high as the roots of wild W. somnifera (1.180 mg x g(-1) dry weight), respectively. It is possible to obtain withanolide A from hair roots culture of W. somnifera.
Agrobacterium tumefaciens ; physiology ; Plant Extracts ; analysis ; biosynthesis ; Plant Roots ; chemistry ; growth & development ; metabolism ; microbiology ; Withania ; chemistry ; growth & development ; metabolism ; microbiology ; Withanolides ; analysis ; metabolism

OBJECTIVETo study clinical effects of the over-articular external fixator combined with limited internal fixation for the treatment of Pilon fractures caused by high energy.

METHODSFrom September 2003 to April 2011, 36 patients with Pilon fractures caused by high energy were treated with the over-articular external fixator combined with limited internal fixator. There were 25 males and 11 females, ranging in age from 16 to 72 years old,with an average of 38 years old. The diagnoses of all patients were determined by conventional X-ray examination or three-dimensional spiral CT examination. The AOFAS scoring criteria was used to evaluate the therapeutic effects. The patients with comminuted fractures were treated with screw or Kirschner wire fixation without uncovering periost so as to enhance stability between fracture end and bone blocks,followed by the fixation with over-articular external fixators.

RESULTSAll the patients were followed up, and the duration ranged from 4 to 27 months, with an average of 13 months. Thirty-two patients got wound healing at the first stage. And the bone union duration ranged from 2 to 6 months, with a mean of 3 months. According to the AOFAS ankle-hindfoot subjective scoring standard, 13 patients got an excellent result, 20 good and 3 fair, with an score of 88.2 +/- 3.6. Twelve patients had infections at pinhole, 5 patients had pinhole pain. One patient had the fixator broken induced by over loading, who was cured after treatment. There were no complications such as nerve or vascular injuries, or osteomyelitis.

CONCLUSIONThe over-articular external fixation combined with limited internal fixation for the treatment of Pilon fractures caused by high energy is an ideal method, which has such advantages as reliable fixation, simple operation, coincidence with principles of biomechanical fixation, and benefit for fracture healing.

Adolescent ; Adult ; Aged ; Ankle Injuries ; diagnostic imaging ; surgery ; Ankle Joint ; diagnostic imaging ; surgery ; External Fixators ; Female ; Fracture Fixation ; Fracture Fixation, Internal ; Humans ; Internal Fixators ; Male ; Middle Aged ; Radiography ; Treatment Outcome ; Young Adult

Adenocarcinoma, Follicular ; metabolism ; pathology ; Adenoma, Chromophobe ; metabolism ; pathology ; Adenoma, Oxyphilic ; metabolism ; pathology ; Angiomyoma ; metabolism ; pathology ; Biomarkers, Tumor ; metabolism ; Carcinoma, Papillary ; metabolism ; pathology ; Carcinoma, Renal Cell ; classification ; metabolism ; pathology ; ultrastructure ; Diagnosis, Differential ; Humans ; Kidney Neoplasms ; classification ; metabolism ; pathology ; ultrastructure ; Thyroid Neoplasms ; metabolism ; pathology

Objective To evaluate the possibility of no-beparin open operation at low costal arch in live donor nephrectomy via retroperitoneal approach. Methods The effects of 134 cases no-beparin operation and 82 eases heparinized operation at low costal arch in live donor nephrectomy via retroperitoneal approach during 2003.5 to 2008.5 in our hospital were retrospective analyzed. Results The kidneys of the donors in two groups were successfully harvested. The operation time varied from 110 rain to 200 rnin, and warm isebemia time varied from lOs to 20s. Delayed graft function (DGF) was oceurred in one ease in each group. There was no signifieant difference in live donor nephreetomy between the two groups(P >0. 05), but the no-beparin group had less bleeding. Conclusion The no-beparin open operation at low eostal arch in live donor nephrectomy via retroperitoneal approach is technieal]y feasible and safe, and has less bleeding, and little influence on the allograft.

This paper introduces the operational principle, structure, components of rotating abortive apparatus. The structure, size, material and design of the rotation ring are presented, and the abortion with rotating abortive apparatus is also mentioned in this paper.

This paper introduces such instrumental induced abortions without vacuum aspiration in China as rotary instrument-induced abortion, ultrasound termination pregnancy, acupuncture antiearly pregnancy and microwave radiation induced abortion. This paper can be referred to when new abortion method and apparatus developed.

Objective To investigate the effect of hematoxin,lipopolysaccharide(LPS),lipopolysaccharide binding protein(LBP)/membrane CD14(mCD14) in occurrence and development of systemic inflammatory response syndrome(SIRS) in children.Methods Serum LPS,LBP,mean fluorescence intensity(MFI) of mCD14 on monocytes of 30 patients with SIRS were measured,at the same time 21 healthy children had been chosen to serve as control group.Results Compared with control group,the serum LPS,LBP,MFI of mCD14 on monocytes of patients with SIRS were significantly higher(Pa