Retinopathy of Prematurity is a retinal vascular proliferative disease.With the improvement of the medical care in China, retinopathy of prematurity (ROP) has become one of the main causes of child hood blindness in recent years.Several factors such as short gestational age, low birth weight and oxygen supplementation are the three major risk factors for the disease, however, the pathogenesis is still not clear.This review here aims to expand the etiology and pathogenesis of ROP and provide a theoretical basis for the prevention and control of the disease.

Acupuncture Therapy ; Female ; Humans ; Middle Aged ; Thalamic Diseases ; therapy

? AlM: To analyze the incidence, characteristics and related risk factors of high intraocular pressure after pars plana vitrectomy ( PPV) .
?METHODS: Totally, 146 patients (146 eyes) undergone PPV in our hospital were selected. Age, gender, eye, course and operation time of patients were compared, in order to understand the incidence rate and characteristics of high intraocular pressure. Primary diseases, intraoperative treatment methods and intraocular tamponade type were compare, in order to analyze the related risk factors of high intraocular pressure.
? RESULTS: Forty - seven patients occurred high intraocular pressure after operation, the incidence rate was 32. 2%. There was no significant difference in age, gender, eye, course and operation time (P>0. 05). The incidence rate in diabetic patients with simple vitreous hemorrhage and with tractional retinal detachment were 21.1% and 57.6%, respectively (P<0.05). The incidence rate in retinal detachment with PVR below grade C2 and above C2 were 19. 0% and 43. 8%, respectively (P<0. 05). The incidence rate in ocular trauma with vitreous hemorrhage and with intraocular foreign bodies were 25. 0% and 70. 0%, respectively (P<0. 05). The incidence rate of patients treated with panretinal photocoagulation was 50. 8%, significantly higher than patients without treated with panretinal photocoagulation (P<0. 05). The incidence rate of patients treated with part panretinal photocoagulation was 29. 5%, higher than patients without treated with panretinal photocoagulation, but there was no statistical difference ( P > 0. 05 ). The incidence rate of using silicone oil, C3 F8 and simple ventilation were 59. 7%, 34. 5% and 14. 5%, respectively (P<0. 05).
? CONCLUSlON: After vitrectomy intraocular hypertension incidence and preoperative, intraoperative treatment of primary disease is closely related to factors such as the way and intraocular tamponade.

Objective To study the chemical constituents in the roots of Phlomis medicinalis.Methods The compound was isolated and repeatedly purified by macroporous resin,silica gel column chromatography,TLC,and Prep-HPLC.Its stracture was elucidated by physical and chemical properties and NMR spectra.Results One iridoid glucoside was obtained and elucidated as 8,10-dehydropulchelloside.Conclusion The compound is a new one.

Objective: The inhibition on the proliferation of colorectal carcinoma cell strain with different proliferative potential by ATRA was investigated in present study, which would benefit for the therapy of ATRA on colorectal carcinoma. Methods: The proliferation of LS174T and CW-2 colorectal carcinoma cell strain inhibited by ATRA was determined using cell observation, FACS and MTT methods. Results: The growth speed of LS174T cell strain was faster than that of CW-2. ATRA played a significant role on inhibiting the proliferation of LS174T and CW-2 cell strain and inducting the cell differetiation in vitro. Conclusions: ATRA could inhibit the growth of LS174T and CW-2 cell strain. ATRA could inhibit the proliferation of colorectal carcinoma cell and induce cell differentiation to some extent, which was correlated with the concentration of ATRA.

Adolescent ; Adult ; Blood Pressure ; Gravity Suits ; Heart Function Tests ; Humans ; Male ; Positive-Pressure Respiration ; Young Adult

Air ; analysis ; Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Styrenes ; analysis ; Workplace

Objective:To examine the plasma soluble interleukin 2 receptor (sIL-2R)and the expression of IFN-γR in helper T (Th)cells in peripheral blood of patients with recurrent oral ulcer(ROU).Methods:The peripheral blood was obtained from 21 pa-tients in active stage of ROU and 21 healthy controls.Flow cytometry was used to detect the quantity of IFN-γR in CD +4 T cells,ELISA was used to detect the level of sIL-2R.Results:The expression of IFN-γR in CD +4 T cells and sIL-2R content in plasma of the patients with ROU were significantly higher than those in the healthy controls(P <0.05).Conclusion:Over expression of IFN-γR in CD +4 T cells and sIL-2R in peripheral blood may be related to the genesis of ROU.

AlM: To observe the clinic effect of oral mucosa transplantation in the treatment of severe contracted conjunctival sac after ocular prosthesis implantation .
METHODS: Thirty-three cases ( 33 eyes ) with globe disorders and severe contracted conjunctval sac were operated ocular prosthesis implantation firstly, and conjunctival sac plasty using oral mucosa after 6mo.
RESULTS: Thirty - one cases were successful, no complications appeared. One case had primary ptosis and 1 case had recurrent conjunctival sac contracture.
CONCLUSlON:lt is recognised that the methods of oral mucosa transplantation in severe contracted conjunctival sac after ocular prosthesis implantation are effective on those cases.

AIM: To observe the comparison of vitrectomy combined drug therapy ( Ranibizumab injection ) and single vitrectomy for proliferatived diabetic retinopathy ( PDR ) and the influence of the curative effect and prognosis of patients.
METHODS:In this study, 112 cases (125 eyes) with PDR were selected and randomly divided into experimental group and control group ( n= 56 ) . Fifty-six cases ( 61 eyes ) in experimental group were injected by drug therapy of 0. 5mg ranibizumab and received vitrectomy;In control group, 56 cases ( 64 eyes ) were received single vitrectomy. The intraoperative and postoperative differences of clinical indicators were analyzed in two groups.
RESULTS: The average operation time, intraoperative electric coagulation hemostasis rate and iatrogenic hiatal incidence of the experimental group were lower than that of the control group:(95. 00±13. 00) min vs (133. 00±14.5) min, 11% vs 34%, 5% vs 20%, respectively (P<0. 05). The anterior chamber and vitreous body cavity hemorrhage rate within postoperative 1mo in the experimental group were lower than that of the control group:7% vs 23%, 5% vs 12%, respectively (P<0. 05). The postoperative visual acuity of experimental group was better than that of the control group:0. 375±0. 210 vs 0. 261±0. 170, respectively (P<0. 05).
CONCLUSION: Patients with PDR injected with ranibizumab in vitreous cavity before vitrectomy can effectively reduce the operation time, less intraoperative blood loss, the incidence of iatrogenic hiatus, and intraoperative and postoperative complications. The postoperative visual acuity was better than before.