AIM: To discuss the establishment of immediate diabetic keratopathy animal model of C57BL/6 mouse induced by ahigh-fat and high-glucose diet.
METHODS: Diabetes mellitus was induced by a high-fat and high-glucose diet in C57BL/6 mouse. 1% rose bengal was stained on the cornea to examine the integrality of the corneal epithelium at 2 ~ 12mo after completion of the model. Corneal epithelial wound healing was observed using a vivo epithelial debridement model which was dyed by sodium fluorescein. Corneal morphology histology was examined by pathological methods.
RESULTS: The high-fat and high-glucose diet C57BL/6 mouse in 2mo had showed general symptoms of diabetes: polydipsia, polyphagia, polyuria, weight loss etc. The model had a steady-state high glucose (≥18mmol/L), also the weight was lower compared with normal control mouse. 1% rose bengal corneal staining had dot coloring at 2mo after completion of the model, the stained area and extent were gradually increased with the extension of the duration of diabetes, almost all the cornea was stained at 12mo after completion of the
model. With the passage of time into a mold, the cornea epithelial healing time become longer: 2mo was about 40h;3mo was about 120h; 4, 6, 12mo was about 144h;the coloboma were gradually increased at 12mo after completion of the model, then the area was reduced gradually until complete healing, the time was 96~120h, showed repeating phenomenon.
CONCLUSION: The mouse were induced by high-fat and high-glucose diet can be used as animal models of diabetic keratopathy: the damage of epithelium for corneal and delay healing on epithelium and other symptoms.

Adenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Carcinoid Tumor ; metabolism ; pathology ; surgery ; Chromogranin A ; metabolism ; Diagnosis, Differential ; Gastrectomy ; methods ; Gastrointestinal Stromal Tumors ; pathology ; Humans ; Male ; Middle Aged ; Neoplasms, Multiple Primary ; metabolism ; pathology ; surgery ; Stomach Neoplasms ; metabolism ; pathology ; surgery ; Synaptophysin ; metabolism

OBJECTIVETo observe dynamically the effect of drugs for clearing heat and removing dampness (CHRD) on biliary components in rabbits with pigment gallstones (PGS).

METHODSForty rabbits were established into PGS model and randomly divided into 3 groups, the bacterial infection group, the CHRD low-dose group and the CHRD high-dose group. Besides, a normal group was set up with healthy rabbits for control. Changes of total bilirubin (TB), unconjugated bilirubin (UCB), total bile acid (TBA), Ca2+, bacterial and endogenous beta-glucuronidase (beta-Gase) in bile were observed.

RESULTSCHRD drugs significantly decreased the contents of UCB, Ca2+, bacterial and endogenous beta-Gase (P < 0.05), and increased TBA in bile (P < 0.05).

CONCLUSIONCHRD drugs have good effect in reducing the lithogenesis of the pigment gallstones.

Animals ; Bile ; drug effects ; metabolism ; Bile Pigments ; metabolism ; Calcium ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Gallstones ; drug therapy ; metabolism ; pathology ; Glucuronidase ; metabolism ; Male ; Phytotherapy ; Rabbits ; Random Allocation ; Treatment Outcome

OBJECTIVETo compare the therapeutic effects of peripheral facial paralysis in acute stage by different interventions and explore the better treatments of peripheral facial paralysis.

METHODSOne hundred and thirty one cases of Bell's facial paralysis were randomly divided into three groups. In acupuncture group (44 cases), Dicang (ST 4), Jiache (ST 6), Hegu (LI 4), Yangbai (GB 14) and Taiyang (EX-HN 5), etc. were applied; in electroacupuncture group (45 cases), the selection of acupoints and needling method were same as those in acupuncture group, and the electroacupuncture therapy was applied on Dicang (ST 4), Xiaguan (ST 7), Yangbai (GB 14) and Taiyang (EX-HN 5) in acute stage; in medication and acupuncture group (42 cases), Prednisone and Acyclovir were taken by oral administration, Vitamin B1 and Vitamin B12, were applied by intramuscular injection in acute stage, and acupuncture was applied by the way which was same as that in acupuncture group during quiescent and recovery stages. The curative effects were evaluated by House-Brackmann Grading Scale, and the failed rates were observed by follow-up after one and three months.

RESULTSThe cured and markedly effective rates were 79.6% (35/44), 93.4% (42/45) and 78.6% (33/42) respectively in acupuncture group, electroacupuncture group and medication and acupuncture group, and the result in electroacupuncture group was superior to those in acupuncture group and medication and acupuncture group (P < 0.05). The cured rates above tympanichord were 54.2% (13/24), 85.2% (23/27) and 48.0% (12/25) in acupuncture group, electroacupuncture group and medication and acupuncture group, and the result in electroacupuncture group was superior to those in acupuncture group and medication and acupuncture group (P < 0.01). There was no significant differences of cured rates below tympanichord among three groups (P > 0.05); and the failed rate in electroacupuncture group was much lower than those in acupuncture group and medication and acupuncture group by follow-up after one and three months (all P < 0.01).

CONCLUSIONThe peripheral facial paralysis is effectively treated by electroacupuncture in acute stage, and it suggests that electroacupuncture should be applied early during the acupuncture treatment of peripheral facial paralysis.

Acupuncture Points ; Acupuncture Therapy ; Acyclovir ; administration & dosage ; Adolescent ; Adult ; Aged ; Electroacupuncture ; Facial Paralysis ; drug therapy ; pathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Prednisone ; administration & dosage ; Treatment Outcome ; Young Adult

Aged, 80 and over ; Heart Valve Prosthesis Implantation ; methods ; Humans ; Male ; Prosthesis Failure

Objective To evaluate values of magnetic resonance imaging(MRI)in eyes filled with silicone oil.Design Prospective cases series.Participants 40 eyes of 40 patients were filled with silicone oil after ocular injury.Methods MRI was performed in the 40 patients,including axial FSE T_1WI,T_2WI,coronal T_2WI with fat saturation,oblique sagittal T_1WI and axial T_2FLAIR.MRI findings,in- cluding morpbous,signal and complications were analyzed.Oculi axes were measured.Main Outcome Measures Morphous,signal, complications and oculi axes of the eyes filled with silicone oil.Results Affected oculi axis was 2.18cm?0.21cm,normal oculi axis was 2.48cm?0.16cm.The silicone oil in eyes demonstrated isointense signal or slightly hyperintense signal on T_1WI and T_2WI,hypointense signal after fat saturation.Hydrops was found in vitreous cavity in 33 patients,including simple hydrops in 17 patients and complicated other abnormality in 16 patients.Choroidal detachment was found in 11 patients,complicating vitreous hydrops in 5 patients and lo- calized bulge of eyeball wall.Retinal detachments were found in 4 patients,of whom 3 patients complicated with vitreous hydrops.Per- fluorocarbon liquid residual in vitreous cavity,foreign body in anterior chamber,localized thickness of the wall of the globe and meagre- mean of silicone oil in vitreous cavity were found respectively in one patient complicating vitreous hydrops.Except for eye changes, fracture of orbital wall and foreign body in orbit were found in one patient.Conclusions MRI can display the changes of eyes filled with silicone oil,and measure oculi axes biologically and accurately offering important clinical application value.(Ophthalmol CHN,2007,16: 312-315)

Objective The aim of this study was to investigate the mechanism underlying pruritus by comparing the epidermal growth factor receptor inhibitor(EGFRI)-erlotinib mouse model with the substance P(SP)-induced pruritus mouse model. Methods Two randomized groups of mice were treated with erlotinib or SP to induce pruritus. Behavioral and skin manifestations were observed. Pathological images and neurokinin 1 receptor(NK-1R)expression of the skin were determined. Concentration of interleukin(IL)-31, IL-33, histamine, leukotriene B4, and SP was analyzed by enzyme-linked immunosorbent assay. Nitric oxide was analyzed by colorimetry. Results Transient pruritus induced by erlotinib appeared 2 to 5 days after treatment. In contrast, continuous pruritus was observed during the first hour, but was then gradually relieved. These two shared similar scratching behavior. Concentration of neurotransmitters showed similar trends in changes among the erlotinib group and SP group. Immunohistochemical expression was also consistent between the erlotinib group and SP group. Conclusions Erlotinib-associated pruritus is related to release of signaling factors through the SP/NK-1R signaling pathway.

0.05).(4) Toxicity:Grade Ⅲ-Ⅳ myelosuppression was 60%(18/30)in Tp group,26%(8/31)in TC group and 30%(10/33)in PC group.The TP regimen had the greatest hematologic toxicity(P0.05). Conclusions As first line chemotherapy in epithelial ovarian cancer,TP regimen comparable to the standard chemotherapy regimen.

BACKGROUNDThis study was designed to investigate the potential pathogenicity of Mycoplasma penetrans (M. penetrans) and its molecular mechanisms responsible for the induction of iNOS gene expression in mouse macrophages stimulated by lipid-associated membrane proteins (LAMPs) prepared from M. penetrans.

METHODSMouse macrophages were stimulated with M. penetrans LAMPs to assay the production of nitric oxide (NO). The expression of inducible nitric oxide synthase (iNOS) was detected by RT-PCR and Western blotting. The activity of nuclear factor kappaB (NF-kappaB) and the effects of pyrrolidine dithiocarbamate (PDTC), an inhibitor of NF-kappaB, on the production of nitric oxide and the expression of iNOS were also assessed in mouse macrophages treated with M. penetrans LAMPs by indirect immunofluorescence and Western blotting.

RESULTSM. penetrans LAMPs stimulated mouse macrophages to produce nitric oxide in a dose- and time-dependent manner. The mRNA and protein levels of iNOS were also upregulated in response to LAMP stimulation and inhibited by PDTC treatment. M. penetrans LAMPs were found to trigger NF-kappaB activation, a possible mechanism for the induction of iNOS expression.

CONCLUSIONThis study demonstrated that M. penetrans may be an important etiological factor of certain diseases due to the ability of M. penetrans LAMPs to stimulate the expression of iNOS, which is probably mediated through the activation of NF-kappaB.

Animals ; Bacterial Proteins ; pharmacology ; Cells, Cultured ; Enzyme Induction ; Lipoproteins ; pharmacology ; Membrane Proteins ; pharmacology ; Mice ; Mycoplasma penetrans ; chemistry ; NF-kappa B ; metabolism ; Nitric Oxide ; biosynthesis ; Nitric Oxide Synthase ; biosynthesis ; Nitric Oxide Synthase Type II ; RNA, Messenger ; analysis

OBJECTIVETo investigate the effect of bone marrow derived endothelial cells implantation on healing of acute injured intima.

METHODSMononuclear cells derived from bone marrow were differentiated to endothelial cells. The cells were labeled with bromodeoxyuridine. Carotids injuring was induced by a balloon in 40 rabbits, endothelial cell suspension (2 x 10(6)/ml, n = 20) or PBS (2 ml, n = 20) was infused to injured arteries. The intima covered area was tested by Evan's Blue staining. The average intima thickness and media thickness were observed 7 and 14 days post procedure by histological assay. The immunofluorescent staining was performed for testing the BrdU labeled-cells, and these cells were detected under a fluorescent microscope.

RESULTSIntima covered area rate was significant higher (54.1% +/- 8.2% vs. 30.0% +/- 5.5% at day 7, and 81.8% +/- 6.0% vs. 63.6% +/- 8.4% at day 14, all P < 0.05) and the intima thickness and media thickness were significantly reduced in the endothelial cell suspension group.

CONCLUSIONThe bone marrow derived endothelial cell promoted healing post intima injury in this model compared to PBS group (all P < 0.05).

Animals ; Bone Marrow Cells ; cytology ; Bone Marrow Transplantation ; Carotid Arteries ; pathology ; Carotid Artery Injuries ; pathology ; surgery ; Endothelial Cells ; cytology ; pathology ; transplantation ; Female ; Male ; Rabbits ; Transplantation, Autologous