Cholesteatoma ; diagnosis ; Ear, Middle ; Humans ; Otitis Media ; diagnosis

Objective To compare the therapeutic effects of recurrent pterygium treated by microsur- gical management.Methods Sixty-two cases(67 eyes)with recurrent pterygiumwere randomly divided into limbal stem cell autograft transplantation comblined with mitomycin C(34 cases38 eyesand limbal stem cell autograft transplantation(28 cases29 eyes)The post operative follow-up period was 6 to 30 months.Re- suits One eye recurrence was noted in the trial groupthe recurrent rate was 2.63%Three eyes recurrence was noted in the control groupthe recurrent rate was 10.34%There was statistical significant difference be- tween two groups(P0.05).Conclusion Limbal stem cells autograft transplantation combined with mitomycin C can decrease the recurrent rate.It is an ideal methods of recurrent pterygium surgical procedureis worth spreading.

In order to affirm the cardioactive components in Fuzi, we identified a group of aminoalcohol- diterpenoid alkaloids in Fuzi using ultra high-performance liquid chromatography coupled with electrospray ionization mass spectrometer (UPLC-ESI-MS) method. Among a total of forty-one isolated ingredients, thirteen major aminoalcohol-diterpenoid alkaloids were identified by comparing their retention times and MS spectra with those of the reference substances. Moreover, Fuzi samples from different places of origin and with different processing methods were examined and their components displayed a pattern of high similarity, though the relative abundance varies probably due to their different processing methods. Furthermore, the cardiac effect of each identified alkaloid was individually evaluated using the isolated bullfrog heart perfusion experiment. Among the thirteen aminoalcohol diterpenoid alkaloids tested, six of them significantly enhanced the amplitude rates. Taken together, we affirm that the cardioactive components in Fuzi are aminoalcohol-diterpenoid alkaloids, shedding light on future studies of the mechanisms and development of these cardioactive compounds.
Aconitum ; chemistry ; Alkaloids ; chemistry ; Amino Alcohols ; chemistry ; Animals ; Cardiotonic Agents ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Heart ; drug effects ; In Vitro Techniques ; Plant Extracts ; chemistry ; Rana catesbeiana ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVETo investigate the functional and metabolic alterations in cultured insulin resistant ovary model in vitro, and to observe the effect of berberine (Ber, a Chinese medical monomer) in improving insulin resistance (IR).

METHODSOvary of mouse was cultured in vitro and treated by dexamethasone (Dex) to induce IR for establishing IR model ovary. The functional alteration in model ovary was assessed through detecting glucose and hormone levels in medium using RT-PCR, meanwhile, the expression of key molecules in insulin signal and steroid synthetic pathway were detected, and condition of IR improved by berberine was evaluated also.

RESULTS(1) The model ovary was made by Dex in dose- and acting time-dependent manner. After being treated by 300 nmol/L Dex for 48 h, the glucose uptake of ovary reduced from 9.05 +/- 0.75 mg/g to 2.48 +/- 0.29 mg/g (P < 0.05); it further decreased (from 9.59 +/- 1.74 mg/g to 1.94 +/- 0.19 mg/g, P < 0.01) under the stimulation of insulin, which proved that the IR model ovary was made successfully. Berberine significantly increased the glucose uptake of model ovaries (1.89 +/- 0.33 mg/g to 13.95 +/- 3.30 mg/g, P < 0.05). (2) As compared with control group, levels of testosterone (T) and androstenedione (A2) were higher, and levels of progesterone (P) and 17-hydroxyprogesterone (17-OHP) were lower significantly in the model. Berberine reversed the alternations of T, A2 and 17-OHP levels, but did not influence the level of P. (3) RT-PCR showed that the mRNA expressions of cytochrome 17-hydroxylase (CYP17) and mini-chromosome maintenance protein-2 (MCM-2) elevated, but extracellular regulated protein-1 (ERK-1), protein kinase B (AKT-2) and glycogen synthase kinase-3 (GSK-3beta) lowered in the medium after Dex inducing. Berberine treatment restored these molecular index obviously.

CONCLUSIONS(1) Dex could induce IR in mouse ovary, which might enhance the androgenic synthesis. (2) Berberine could alleviate the degree of IR and the androgen synthesis, indicating that the Chinese sensitizing agents has favorable therapeutic effect for the treatment of polycystic ovaries.

17-alpha-Hydroxyprogesterone ; metabolism ; Androstenedione ; biosynthesis ; Animals ; Berberine ; pharmacology ; Female ; In Vitro Techniques ; Insulin ; metabolism ; Insulin Resistance ; Mice ; Mice, Inbred Strains ; Ovary ; drug effects ; metabolism ; Polycystic Ovary Syndrome ; Progesterone ; biosynthesis ; Testosterone ; biosynthesis

Aim To investigate the cardiotoxicity of propofol and thiopental. Methods 4day-old contracting neonatal primary myocardial cells obtained from 2-to 3-day-oldWistar rats were divided into 5 groups, with normal contrast group, and the cellcultures in groups PL, PH, TL and TH, were treated with propofol(3 ? 10-5 and3 ? 10-4 mol? L) and thiopental (1 ? 10-5 and 1 ? 10-4 mol?L) for 8 h.The con-tractility and morphology of the cells were observed and the cytoplasmic enzyme(LDH, AST, CK and ALP) release content of myocardial cell and the concentrationof electrolytes (K +, Na +, Cl - and Ca2+ ) in the medium were measured 8 h afterintravenous anesthetics administration. Results In groupPH and TL decreasedsignificantly (P

OBJECTIVETo investigate the effect of hypoxia on the human pulmonary artery smooth muscle cells two pore domain potassium channels TASK-1 and the regulation of non-receptor tyrosine kinase c-Src in this process.

METHODSThe cultured human pulmonary artery smooth muscle cells (hPASMCs) were divided into: normal group, hypoxia 30 minute group, hypoxia 6 hours group and hypoxia 48 hour group, and hypoxia 48 hour + PP2 group, hypoxia 48 hour + PP3 group, hypoxia 48 hour + bpV group. Flow cytometry was used to analyze the cell cycle, RT-PCR and Western blot technique were carried out to detect the expression changes of TASK-1 mRNA and protein in different groups.

RESULTS(1) Cell Cycle Show: Compared with normal control group, with prolonged hypoxia, the percentages of hPASMCs in S phases of cell cycle were increased. While compared with hypoxia 48 hour group, the percentages of hypoxia 48 hour + PP2 group hPASMCs in S phases of cell cycle were decreased. The expression of TASK-1 mRNA on hPASMCs in acute hypoxia 6 hour group was increased, while the expression of TASK-1 protein on hPASMCs in the acute and chronic hypoxia group was decreased, and the expression of TASK-1 mRNA on hPASMCs in the chronic hypoxia group was decreased; After pre-incubation of a potent and selective inhibitor of the Src family of protein tyrosine kinases PP2, the expression of TASK-1 mRNA and protein in hypoxia 48 hour group was increased, however after pre-incubation of the inhibitor of the Src family of protein tyrosine phosphatase bpV, the expression of TASK-1 protein in hypoxia 48 hour group was decreased.

CONCLUSIONHypoxia promotes human pulmonary artery smooth muscle cell proliferation, and non-receptor tyrosine kinase c-Src may participate in the expression of two pore domain potassium channels TASK-1 regulated by hypoxia. Therefore, we hypothesized that TASK-1 channels and c-Src participatein the acute and chronic hypoxic human pulmonary vasoconstriction.

Cell Hypoxia ; Cell Proliferation ; Cells, Cultured ; Humans ; Myocytes, Smooth Muscle ; cytology ; Nerve Tissue Proteins ; metabolism ; Potassium Channels, Tandem Pore Domain ; metabolism ; Pulmonary Artery ; cytology ; RNA, Messenger ; Vasoconstriction ; src-Family Kinases ; metabolism

Accidents, Occupational ; statistics & numerical data ; Adult ; Extraction and Processing Industry ; Female ; Humans ; Male ; Petroleum

AIM: To investigate the clinical effect for treating bullous keratopathy ( BK ) by anterior corneal stromal acupuncture combined with amniotic membrane transplantation.
METHODS: Totally 35 patients ( 35 eyes ) with bullous keratopathy were treated by corneal stromal acupuncture combined with amniotic membrane transplantation. All patients preoperative and postoperative underwent anterior segment OCT, corneal topography, corneal sensitivity and confocal microscopy. To observe postoperative ocular symptoms in patients with BK, recurrence of bulla, changes in corneal thickness, corneal sensitivity and changes in the organizational structure of the layers of the cornea.
RESULTS: Thirty-five were followed up for 6-18mo. The symptom of pain disappeared in 32 cases ( 91%) in the first day after operation and did not recur during follow-up. The symptom of pain relieved in 3 cases (9%) in the first day after operation and disappeared in 3 days. Corneal epithelium of 9 cases ( 26%) were all healed within 1wk, 21 cases (60%) were all healed within 2wk, and 5 cases (14%) were all healed within 3wk. Following up for 6-18mo, there was no recurrence of symptoms or bulla. A small amount of tiny bubbles in the surrounding area appeared in 2 cases after 3 and 4wk. All patients had no neovascularization, and had smooth corneal surface. The amnions of 30 cases (86%) were thinning after 2mo, partially dissolved and absorped, not seen with the naked eye after 3mo. Thirty-four cases (97%) had no changes in vision, one case (3%) was from the light to front of the manual. After 2mo, corneal sensation decreased in 30 cases ( 86%) , corneal thickness increased from preoperative 788±35μm to 940±43μm. After 12mo, corneal thickness increased to 1060±27μm. Results of confocal microscopy: after 3mo, the number density of the trigeminal nerve fibers under corneal basement membrane reduced, shallow stromal cells became into fibrotic stroma, deep stroma was more loose, and cells swelled significantly. The number of endothelial cells reduced and form swelled more obviously compared with preoperatively.
CONCLUSION: Corneal acupuncture combined with amniotic membrane transplantation can effectively control the symptoms of BK, prevent the recurrence of BK, and especially it is a simple, safe and practical way for patients with poor visual function.

Biopsy ; Humans ; Kidney ; pathology ; Staining and Labeling ; methods

China ; Information Systems ; Occupational Health Services ; organization & administration ; standards