Bone Cysts, Aneurysmal ; diagnostic imaging ; pathology ; surgery ; Cartilage Diseases ; diagnostic imaging ; pathology ; surgery ; Female ; Hamartoma ; diagnostic imaging ; pathology ; surgery ; Humans ; Infant ; Mesoderm ; diagnostic imaging ; pathology ; surgery ; Nasal Cavity ; diagnostic imaging ; pathology ; surgery ; Neoplasm Recurrence, Local ; Nose Diseases ; diagnostic imaging ; pathology ; surgery ; Tomography, X-Ray Computed

Nerve growth factor is one of the most important factors playing an important role in regulating the growth, development and survival of the neuron. The purified NGF from human placenta has been reported, the tissue from which can be isolated the NGF is very limited. It is important for basic research and clinic application to expression hNGF by genetic engineering. By polymerase chain reaction,gene fragment encoding the mature part of ?-NGF was amplified using the DNA of human placenta as template. The fragment was sequenced and inserted into expression vector pET-15b, and the recombinant expression vector pET15b-NGF was transformed into E.coli BL21(DE3)pLysS. After inducing with IPTG the NGF was higher expressed up to 25% of the total cell proteins. The expression product was purified with metal chelate affinity chromatography on Ni-IDA agarose under denaturing condition. The purity of rNGF was higher than 90% and yield of rNGF was 4.56mg/L expressing bacteria. SDS-PAGE revealed the NGF expression product had a Mr 16kDa. Western-blot displayed the recombinant product had strong immunological activity with rabbit anti-human ?-NGF polyclonic antibodies. The expression products were dealed with solubilizing inclusion bodies and refolding protein. The test of nerve fiber growth of chicken embryo DRG neurons displayed rNGF had biological activity.

Mongolian folk medicine resource is the origin of Mongolian medicine development, even more important of which is the specialized Mongolian folk medicine resources with regional and high medicine quality, it processes distinctive national characteristics with irreplaceable important position in traditional Mongolian medicine. Nevertheless, due to the serious destroy of ecological environment and sharp increase of demands, etc. A lot of specialized Mongolian folk medicine resources were endangered, and there still existed some problems in the protection and exploitation and utilization. This paper intends to provide comprehensive insight into the species protection and exploitation and utilization states of specialized Mongolian folk medicine resources. The application and protection status and the existing problems were reviewed, and the development strategies of Mongolian folk medicine resource were analyzed.
Conservation of Natural Resources ; methods ; Environment ; Medicine, Mongolian Traditional ; Mongolia ; Plants, Medicinal ; classification ; growth & development

OBJECTIVETo investigate the expression of full-length spleen tyrosine kinase [SYK (L)] mRNA and protein in human oral squamous cell carcinoma (OSCC) as well as its possible effects on the invasion and metastasis of OSCC.

METHODSThe expression of SYK (L) was detected in 27 cases of OSCC tissues and its matched adjacent non-cancerous tissues by real-time quantitative polymerase chain reaction (RT-qPCR), Western blot, and immunohistochemistry. Fourteen cases of normal oral gingival tissues were also analyzed as a normal control.

RESULTSReduced mRNA and protein expression of SYK (L) in OSCC tissues was observed compared with that in normal oral gingival tissues (P<0.01) and adjacent non-cancerous tissues (P<0.05). SYK(L) expression was significantly associated with lymph-node metastasis (P<0.05).

CONCLUSIONSYK(L) is a candidate tumor suppressor for OSCC tissues, and has an inhibitive effect on the initiation, proliferation, and lymph-node metastasis of human OSCC.

Blotting, Western ; Carcinoma, Squamous Cell ; metabolism ; Humans ; Immunohistochemistry ; Lymphatic Metastasis ; Mouth Neoplasms ; metabolism ; RNA, Messenger ; Syk Kinase ; metabolism

Objective To investigate the role of human estrogen receptor-related receptor(ERR) ?,a submember of orphan receptors,in the tumorigenesis of endometrial cancer.Methods Plasmid of pSG-ERR? was transfected into endometrial cancer cell lines HEC-1A,HEC-1B,and Ishikawa.Real-time quantitative RT-PCR and western blot were used to analyze the mRNA and protein expression of ERR? in endometrial cancer cell.Flow cytometry was used to analyze the cellular growth.Results Expressions of the ERR? were significantly increased in the endometrial cancer cells transfected with pSG-ERR? plasmid; expression of the ERR? mRNA in HEC-1A cell was 9644.4 copies/ng,HEC-1B:9835.3 copies/ng,and Ishikawa:8008.6 copies/ng(P

OBJECTIVETo study the analgesic, antipyretic and anti-inflammatory effect of Bailian Caogen granule.

METHODThe antipyretic effects of Bailian Caogen granule was evaluated in rabbit fever model induced by peptone. The analgesic effect of the drug was studied with pain model of mice induced by acetic acid and hot plate, The severity of oedema in inflamed animal was observed to study the anti-inflammatory effects of Bailian Caogen granule.

RESULTBailian Caogen granule could obviously inhibit the fever of rabbits. The number of writhing induced by acetic acid was reduced and the pain threshold of mice was increased by Bailian Caogen granule. Bailian Caogen granule also had anti-inflammatory activity against xylene-induced mouse ear swelling and carrageenin-induced rat paw edema.

CONCLUSIONBailian Caogen granule has significant analgesic, antipyretic and anti-inflammatory activities.

Acetic Acid ; Analgesics, Non-Narcotic ; pharmacology ; Animals ; Body Temperature ; drug effects ; Coptis ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; pharmacology ; Edema ; pathology ; prevention & control ; Female ; Fever ; physiopathology ; prevention & control ; Glycyrrhiza uralensis ; chemistry ; Hot Temperature ; Hyperalgesia ; etiology ; physiopathology ; prevention & control ; Male ; Mice ; Pain ; chemically induced ; physiopathology ; prevention & control ; Pain Threshold ; drug effects ; Phellodendron ; chemistry ; Plants, Medicinal ; chemistry ; Pueraria ; chemistry ; Rabbits ; Random Allocation ; Rats ; Rats, Sprague-Dawley

The methods to determine the total phenols, total saponins, and marker constituents salidroside, chlorogenic acid and 3, 4-dihydroxy-phenylethyl-β-D-glucopyranoside in the samples of Sargentodoxae Caulis were established to provide the evidence for the improvement and revision of the quality standard of the crude material recorded in the Chinese Pharmacopoeia (2015 Edition). The content of total phenols was determined by ultraviolet spectrophotometry, using gallic acid as a reference substance. The content of total saponins was determined by ultraviolet spectrophotometry, using 3-O-[β-D-xylopyranosyl-(1-2)-O-β-D-glucuronopyranosyl]-28-O-[β-D-glucopyranosyl] asiatic acid as a reference substance. The contents of salidroside, chlorogenic acid and 3,4-dihydroxy-phenylethyl-β-D-glucopyranoside were detected by HPLC. The linear ranges were 1.01-7.04 mg x L(-1) for total phenols, 37.7-201 μg for total saponins, 0.025 8-1.55 μg for salidroside, 0.076 2-5.44 μg for chlorogenic acid, and 0.064 9-3.47 μg for 3,4-dihydroxy-phenylethyl-βP-D-glucopyranoside, respectively. Their average recoveries were 99.12%, 99.11% 105.5%, 99.08%, and 101.6%, respectively. The contents of total phenols and total saponins were 3. 04% -11. 9% and 0. 87% -3. 63%. The contents of salidroside, chlorogenic acid and 3,4-dihydroxy-phenylethyl-β-D-glucopyranoside fluctuated from 0.018% to 0. 572%, from 0.041% to 1.75% and from 0.035% to 1.32%. The established methods were reproducible, and they could be used for the quality control of Sargentodoxae Caulis. The present investigation suggested that total phenols, salidroside, and chlorogenic acid should be recorded in the quality standard of Sargentodoxae Caulis and their contents should not be less than 6.8% for total phenols, 0.040% for salidroside, and 0.21% for chlorogenic acid.
China ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; Magnoliopsida ; chemistry ; Phenol ; analysis ; Plant Stems ; chemistry ; Saponins ; analysis ; Triterpenes ; analysis

OBJECTIVETo verify the feasibility and safety of new vascular interventional robot system used in vascular interventional procedures.

METHODSVascular interventional robot type-2 (VIR-2) included master-slave parts of body propulsion system, image navigation systems and force feedback system, the catheter movement could achieve under automatic control and navigation, force feedback was integrated real-time, followed by in vitro pre-test in vascular model and cerebral angiography in dog. Surgeon controlled vascular interventional robot remotely, the catheter was inserted into the intended target, the catheter positioning error and the operation time would be evaluated.

RESULTSIn vitro pre-test and animal experiment went well; the catheter can enter any branch of vascular. Catheter positioning error was less than 1 mm. The angiography operation in animal was carried out smoothly without complication; the success rate of the operation was 100% and the entire experiment took 26 and 30 minutes, efficiency was slightly improved compared with the VIR-1, and the time what staff exposed to the DSA machine was 0 minute. The resistance of force sensor can be displayed to the operator to provide a security guarantee for the operation. No surgical complications.

CONCLUSIONSVIR-2 is safe and feasible, and can achieve the catheter remote operation and angiography; the master-slave system meets the characteristics of traditional procedure. The three-dimensional image can guide the operation more smoothly; force feedback device provides remote real-time haptic information to provide security for the operation.

Angiography ; instrumentation ; Animals ; Dogs ; Feasibility Studies ; Male ; Robotics

OBJECTIVETo investigate the clinical effects and prevent the complications of posterior and anterior decompression and internal fixation in the revision of cervical anterior internal fixation failure.

METHODSFrom 2008 January to 2011 December, 17 patients with cervical anterior internal fixation failure were treated with posterior and anterior decompression and internal fixation. There were 12 males and 5 females, aged from 26 to 68 years old with an average of 44.1 years. The lower screw loosening was found in 6 cases, the upper screw loosening in 5 cases, titanium mesh caving in 3 cases, the upper screw breakage in 2 cases, the lower screw breakage in 1 case. Informations of bone fusion were observed by X-ray, CT, MRI. Clinical effects were evaluated by modified JOA score.

RESULTSAll the revision operations were successfully completed. One case with poor blood coagulation function before operation resulted in postoperative hematoma and occurred neurological symptoms; after hematoma removal and fresh frozen plasma infusion later, neurological symptoms of the patient disappeared. All patients were followed up from 6 to 38 months with an average of (22.4±10.0) months. Postoperative at 2 weeks, 3 months, and final follow-up, JOA score had obviously improved and respectively was 13.1±1.6, 13.4±1.6, 14.2±1.5. All internal fixation locations were good after revision,and obtained bone fusion at 10 months after operation, with an average fusion time of 6 months.

CONCLUSIONThe combined posterior and anterior decompression and internal fixation in the revision of cervical anterior internal fixation failure is safe, can achieve thoroughly decompression, maintain the cervical curvature, reconstruct the three column stability, and it may be used for the patients of cervical anterior fixation failure.

Adult ; Aged ; Cervical Vertebrae ; surgery ; Decompression, Surgical ; methods ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged

OBJECTIVETo evaluate the anti degenerative effect of pectin/polyvinyl alcohol composite (CoPP) hydrogel as artificial nucleus material in an animal model.

METHODSThirty-six New Zealand white rabbits were used to build animal models, the L₄₋₅ intervertebral discs were pierced with a Gauge#16 needle and polyvinyl alcohol (PVA) or CoPP implants were inserted into the holes. For comparative purposes, L₃₋₄ discs underwent sham treatment or control treatment in which the disc was pierced but no implant was inserted. All the discs were divided into four groups as follows: sham disc group, pierced disc group, PVA disc group and CoPP disc group. The discs were analyzed radiologically and histologically for degenerative changes at 1, 3 or 6 months after surgery.

RESULTSNone of the animals died from operative complications, such as paraplegia or infection before being killed. Macroscopically, none of the implants showed any signs of displacement at the time of harvest. The radiological analysis revealed that significantly less disc height loss was found with the PVA and CoPP replacement treatment than with the pierced treatment (P < 0.05). Changes in disc height after the replacement treatment were not significantly different from that after the sham treatment (P > 0.05). Histological degeneration of the replaced discs was delayed in comparison with that of the pierced discs (P < 0.05), but progressed with time, and PVA replacement showed faster disc degeneration than CoPP replacement.

CONCLUSIONSDegeneration of the anulus fibrosus after the CoPP prosthetic nucleus replacement treatment is delayed by preserving disc height and occupying the space of the nucleus pulposus, and it has great potential clinical application value.

Animals ; Female ; Implants, Experimental ; Intervertebral Disc ; pathology ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Models, Animal ; Pectins ; therapeutic use ; Polyvinyl Alcohol ; therapeutic use ; Rabbits