AIM: To report a case of late onset diffuse lamellar keratitis (DLK) after laser in situ keratomileusis(LASIK) in 11 months due to corneal trauma. ·METHODS: A 22-year-old female patient underwent uneventful bilateral LASIK using a laserSight SLX excimer laser and Moria II microkeratome. No complications were observed during the operation and the early postoperative period.·RESULTS: 11 months after LASIK, grade I DLK was diagnosed after the book paper hurt the right corneal epithelium. The DLK responded rapidly to topical corticosteroid therapy, and healed in 2 weeks without complication. ·CONCLUSION: Although DLK Wpically develops in the early postoperative period, it could occur months after surgery. Treatment should begin as soon as DLK is diagnosed.

Anti-Inflammatory Agents ; pharmacology ; Child, Preschool ; Humans ; Infant ; Infant, Newborn ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; complications ; pathology ; Prednisone ; pharmacology

Abscess ; therapy ; Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Neck ; Retrospective Studies

Adolescent ; Adult ; Child ; Child, Preschool ; Female ; Fistula ; surgery ; Humans ; Hyoid Bone ; surgery ; Infection ; Male ; Middle Aged ; Thyroglossal Cyst ; surgery ; Young Adult

· AIM: To evaluate the safety of eye anterior tissue when plasmin (Pm) and hyaluronidase (HS) are injected into pigs'vitreouses to induce posterior vitreous detachment(PVD).· METHODS: 15 pigs without ocular diseases were randomly assigned to groups A,B,C (5 in each group). For each pig, one eye was experimental, the other eye was control. The experimental eye received intravitreal injection with enzyme:group A: 50U(0.1mL) HS; group B: 0.5U(0.1mL) Pm; group C: 0.5U(0.05mL) Pm combined with 50U(0.05mL) HS; while the control eye received intravitreal injection with equivalent dose of balanced salt solution (BSS). Postoperative reactions in the eyes were carefully observed by clinical examinations such as slit-lamp microscopy and direct and indirect ophthalmoscopy and measurement of intraocular pressure (IOP). Eyeballs were extirpated 7 days after the operation and histological examination was carried out. The corneas and irises were observed under light microscope (LM). The epithelia of ciliary bodies and lens were studied with transmission electron microscope (TEM).· RESULTS: In all experimental eyes and control eyes of group A, B and C, histological examination showed: under LM ,the corneas and irises of experimental eyes had no histological abnormality in structure; Under TEM, epithelial cells of ciliary bodies and the lens were tightly arrayed with clear cellular boundaries, clear intracellular structure, intact cell membranes, and intact nuclei; There was no significant difference in the clinical examinations and in the change of IOP between preoperation and postoperation, between the experimental group and the control group.· CONCLUSION: With 0.5U Pm and HS 50U injected into pigs' vitreouses to induce PVD, alone or combined with two enzymes, evaluation revealed no evidence of toxicity on the eye anterior tissue. The dosage was proved to be safe for eye anterior tissue.

Humans ; Lung ; cytology ; Macrophages, Alveolar ; Pulmonary Fibrosis ; pathology ; Silicosis ; pathology

Adult ; Blood Glucose ; metabolism ; Female ; Herbicides ; poisoning ; Humans ; Liver ; physiopathology ; Male ; Middle Aged ; Paraquat ; poisoning

Objective To investigate the osteoclast′s function levels in infants and toddlers and the relationship between the osteoclast function and sex,age,body length,body weight and body mass index(BMI).Methods Sixty-eight children(37 boys and 31 girls,aged from 1 to 36 months) were studied.All of the children were in good health.These children were divided as infants group and toddlers group according to their age.Just before the samples were collected,the children′s body weight,body length were measured and the BMI were calculated.Two biochemical markers,such as serum tartrate-resistant acid phosphatase 5b(TRAP5b) and urine deoxypyridinoline(DPD) were measured.Results The difference of serum TRAP5b concentration between infants and toddlers was significant at the level of P

BackgroundMouse has been used in laboratory studies as the model of ocular diseases.Electroretinogram (ERG)is a non-invasive method for primary examination to evaluate retinal function.Though flash ERG has been widely applied in the mouse ocular disease model for the functional assessment of the retinal outer layer,pattern ERG(PERG) is seldom used for inner retinal evaluation.ObjeetiveThe present experimental study was to investigate the recording parameters and method,wave characteristics of PERG and influencing factors in mouse,and to build the foundation for further research.Methods Thirty C57BL/6 mice aged 6 weeks old were included in this research.RETLport ( Roland Consult,Germany) was adopted for the recording of PERG.The positive needle electrode was placed in the cornea,and the reference and earth electrodes were placed under the derma in the cheek and tail.The PERG under different temporal frequencies (0.5,1.0,2.0 and 4.0 Hz),and special frequencies (0.05,0.10,0.20 cpd) were recorded in a photopic environment,and different contrast ratio (95％ and 99％ ) of stimulator or different transmission bands ( 1-100 Hz,5-30 Hz) in the same temporal frequency and spatial frequency were regulated to analyze the influence on mouse PERG.The use of animals was in compliance to the Regulations for the Administration of Affairs Concerning Experimental Animals by the State Science and Technology Commission.ResultsThe latency of N1 PERG showed a negative N1wave at around 37 ms and positive P wave at about 86 ms in adult mice.The amplitude of N1-P was 2-6 μV.Different spatial frequency,temporal frequency and contrast can affect the final results,and the different temporal frequencies were statistically significant.The wave was stable and the amplitude was unaffected at 5-30 Hz transmission bands with pronounced interference (mean amplitude of N1-P waves were(3.40±0.71),(5.08±0.88),(3.21±1.54),(3.85±1.96)μV in 0.5,1.0,2.0,4.0 Hz,F=7.43,P=0.00).ConclusionsPERG wave from adult mouse is similar to that from human.It is a useful method in evaluating the inner retinal function.Appropriate stimulating parameters are critical for recording.

Animals ; Brain Ischemia ; metabolism ; Caspase 3 ; metabolism ; Fas Ligand Protein ; metabolism ; Hippocampus ; metabolism ; Mice ; Mice, Inbred C57BL