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.

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

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

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

In early 2011, the serious outbreak of porcine pseudorabies virus (PRV) infection suddenly recurred in Henan and neighboring Provinces. To investigate the etiology of massive infection with PRV, 16 800 serum samples, 905 porcine epidemic diarrhea virus (PEDV) back-feeding tissues, and 56 PR gene deleted live vaccines were colleted from January 2011 to May 2013 to detect PRV field infection using a PRV gE antibody test kit. The gE and TK genes of 11 new epidemic PRV strains were sequenced by PCR, and their molecular characteristics were analyzed. Moreover, virus titer determination, protective test against PRV, and vaccine potency testing were performed. The results showed that the detection rate of PRV field infection-positive pig farms was 68.06%, and the overall positive rate of PRV field infection in serum was 38.47%; the positive rates in breeding sows, breeding boars, reserve pigs, and commercial pigs were 40.12%, 30.88%, 54.67%, and 26.52%, respectively. The new epidemic strains were in the same evolutionary branch and belonged to the virulent strain group. Compared with the classical PRV strain, the virulence of new epidemic strains changed a little. The length of gE gene was 1 787 bp, and the length of TK gene was 963 bp. The nucleotide homologies of gE and TK genes to Chinese reference strains were 98.2%-99.8% and 98.90%-99.6%, respectively, and the amino acid homologies were 97.1%-99.8% and 97.5%-99.4%, respectively. Commercial vaccine had a 100% protective effect against the new epidemic strains. The positive rate of PRV field infection was 0% in vaccine and 40.44% in back-feeding tissues. The results confirmed that PRV field infection rates were rising sharply among pigs in Henan and neighboring Provinces after 2011. The main virulence genes of new epidemic PRV strains did not change significantly over the years. PR gene deleted live vaccines had no PRV field infection and could completely resist the attack of new strains. The virus carriage of breeding boars and reserve pigs and the serious PRV field infection in PEDV back-feeding tissues were the main causative factors for massive infection with PRV and epidemic outbreak in Henan and neighboring Provinces from 2011 to 2013.
Amino Acid Sequence ; Animal Feed ; analysis ; virology ; Animals ; China ; epidemiology ; Epidemics ; Female ; Herpesvirus 1, Suid ; chemistry ; classification ; genetics ; isolation & purification ; Male ; Molecular Sequence Data ; Phylogeny ; Pseudorabies ; epidemiology ; virology ; Sequence Alignment ; Sequence Homology, Amino Acid ; Sus scrofa ; Swine ; Swine Diseases ; epidemiology ; virology ; Viral Proteins ; chemistry ; genetics

OBJECTIVETo evaluate the interface characteristics of the new-designed locking plate (LP) and limited contact-dynamic compression plate (LC-DCP) and compare the fracture healing between LP and LC-DCP in a goat tibia fracture model.

METHODSEight-hole LP and LC-DCP were applied to fix fresh goat tibiae in a reproducible manner. The average pressure, force and interface contact area were calculated using Fuji prescale pressure sensitive film interposed among the plate and the bone and image analysis system. Eight-hole LP and LC-DCP were applied to each tibia in a goat tibia fracture model. The fracture healing was evaluated by X-ray photography at postoperative 8 weeks. The goats were sacrificed at postoperative 12 weeks. Three-point bending test was conducted in the tibiae.

RESULTSThe interface contact of LP system was smaller than that of LC-DCP (P < 0.05), while interface contact force of LP system was higher than that of LC-DCP (P < 0.05). Radiographs revealed that the fracture line disappeared in the LP group, while the fracture line was visible in DCP group at postoperative 8 weeks. At postoperative 12 weeks, the bending strength and bending load of fractured tibia were higher in LP group than in DCP group, respectively.

CONCLUSIONThe new-designed locking plate can significantly decrease the contact area on the bone interface, which further provides better fracture healing than conventional plates.

Animals ; Biomechanical Phenomena ; Bone Plates ; Fracture Fixation, Internal ; Fracture Healing ; Goats ; Internal Fixators ; Tibia ; physiopathology ; Tibial Fractures ; physiopathology ; surgery