Background Visual adaptive mechanism of mammalian is close responsible for the development of visual cortex.The various genes with different biological functions in different developing stages of visual cortex participate in regulation of visual development.To investigate the differential expression profiles of various genes in different ages of rat cortex can offer basis and evidence for the study of visual development.Objective Present study aimed to investigate the genes that changed continuously in the postnatal developmental process of rat visual cortex by microarray analysis of visual cortex RNA.Methods Sixty clean SD rats were grouped numbered and randomized into the postnatal day 0 group (P0,n =20),before eye opening group (postnatal day 10,P10,n =15),before the critical period of visual cortex growth group (postnatal day 20,P20,n =15) and the end of development of visual cortex group(postnatal day 45,P45,n=15).The rats were sacrificed at corresponding time point respectively,and the fresh visual cortex were obtained for the extraction of total RNA and microarray analysis.Genes exhibiting changes in expression by≥2.0 folds were further confirmed using real-time PCR(RT-PCR).In order to evaluate the association of differential gene expression with growth,the postnatal stages were paired as 36 groups with the 3 pairs for each target gene (P45/P0,P20/P0,P10/P0).Results Microarray analysis showed that the gene with differential ratio ≥ 2.0 folds in rat visual cortex included Akap7,Asam,Casp3,Cxcr4,Egr1,Ennp2,Fabp7,Gpr88,Inpp5d,Rpsa,Stk32c and Vamp1.Real-time PCR verified that 24 genes form 26 probe sets had the same-phase regulating tendency,including 20 up-regulating probe sets and 6 down-regulating probe sets.The homodromous expressing tendency was seen in Akap7,Asam,Casp3,Cxcr4,Egr1,Ennp2,Fabp7,Inpp5d,Rpsa and Vamp1 genes between microarray analysis and RT-PCR.However,reverse expressions were found in the P45/P0 of Gpr88 and Stk32c genes,showing the up-regulation in the microarray analysis and down-regulation in RT-PCR.The concordant rate of gene expression between microarray analysis and RT-PCR was 94.44％.The expressing genes mainly functioned nervous system development,(metal) ion binding/transport,metabolism,regulation of neuronal synaptic plasticity.Conclusions New relevant candidate genes of age-associated rat visual cortex can be identified by microarray analysis,which provide a clue for the research of visual plasticity.

Objective To investigate the therapeutic effect of embolizing carotid-cavernous sinus fistula(CCF) by superior ophthalmic vein(SOV) approaches.Design Retrospective case series.Participants 11 patients with CCF diagnosed by digital subtraction angiography(DSA) were failurers of traditional artery approaches.Methods All pathents were treated with embolizing carotid-cavernous sinus fistula by superor ophthalmic vein approaches.Main Outcome Measures visual acuity,exophthalmos,ocular movement,diplopia,conjunctival hyperemia,ocular fundus changes.Results Clinical cure was achieved in all 11 patients during follow-up for 1 week to 3 months.Six patients with symptoms of exophthalmos disappeared and five improved.8 cases with conjunctival hyperemia vanished and 3 cases relieved.The three patients with decreases of 8 visual acuity,among these one patient was normal and two improved.Intracalvarium strepitus and diplopia were all disappeared and ocular movement was normal.Conclusion Embolizing CCF by SOV is safe and effective when performed by a multidisciplinary team.

This study examined the impact of 935MHz phone-simulating electromagnetic radiation on embryo implantation of pregnant mice. Each 7-week-old Kunming (KM) female white mouse was set up with a KM male mouse in a single cage for mating overnight after induction of ovulation. In the first three days of pregnancy, the pregnant mice was exposed to electromagnetic radiation at low-intensity (150 μW/cm(2), ranging from 130 to 200 μW/cm(2), for 2- or 4-h exposure every day), mid-intensity (570 μW/cm(2), ranging from 400 to 700 μW/cm(2), for 2- or 4-h exposure every day) or high-intensity (1400 μW/cm(2), ranging from 1200 to 1500 μW/cm(2), for 2- or 4-h exposure every day), respectively. On the day 4 after gestation (known as the window of murine embryo implantation), the endometrium was collected and the suspension of endometrial glandular cells was made. Laser scanning microscopy was employed to detect the mitochondrial membrane potential and intracellular calcium ion concentration. In high-intensity, 2- and 4-h groups, mitochondrial membrane potential of endometrial glandular cells was significantly lower than that in the normal control group (P<0.05). The calcium ion concentration was increased in low-intensity 2-h group but decreased in high-intensity 4-h group as compared with the normal control group (P<0.05). However, no significant difference was found in mitochondrial membrane potential of endometrial glandular cells between low- or mid-intensity groups and the normal control group, indicating stronger intensity of the electromagnetic radiation and longer length of the radiation are required to inflict a remarkable functional and structural damage to mitochondrial membrane. Our data demonstrated that electromagnetic radiation with a 935-MHz phone for 4 h conspicuously decreased mitochondrial membrane potential and lowered the calcium ion concentration of endometrial glandular cells. It is suggested that high-intensity electromagnetic radiation is very likely to induce the death of embryonic cells and decrease the chance of their implantation, thereby posing a high risk to pregnancy.

Objective:To report the clinical, pathological, electrophysiological and genic characteristics of a patient with familial amyloidosis Finnish type.Methods:The clinical characteristic of a 60-year-old female who admitted to Beijing Tiantan Hospital, Capital Medical University in June 2020 was analyzed. Meanwhile, the patient underwent electrophysiological examination, biopsy of labial gland, rectum and skin and gene sequencing analysis.Results:The patient presented left facial paralysis at the age of 50, right facial paralysis and thickening of lips at the age of 55, dysarthria and dysphagia at the age of 56. Physical examination of the patient showed signs of cranial nerves involvement and skin thinning and smoothness. Slit lamp showed corneal lattice dystrophy. Electrophysiological findings of the patient suggested bilateral carpal tunnel syndrome. Latencies were prolonged in bilateral visual evoked potential P100. The deep sensory conduction pathways in bilateral C 7 to biparietal and T 12 to biparietal cortex were abnormal. Pathology of the three biopsies of the patient showed the presence of amyloid deposition in the basement membrane around the glands. The heterozygous mutation of c.654 G>T in exon 4 of gelsolin (GSN) gene in the patient resulted in Asp187 Tyr mutation (p.D187Y). Conclusions:The patient with familial amyloidosis Finnish type was characterized by slowly progressive multiple group cranial neuropathy accompanied by corneal lattice dystrophy and skin changes. Optic nerve and spinal cord posterior funiculus sensory conduction pathway and D187Y mutation of GSN gene were involved.

This study examined the impact of 935MHz phone-simulating electromagnetic radiation on embryo implantation of pregnant mice. Each 7-week-old Kunming (KM) female white mouse was set up with a KM male mouse in a single cage for mating overnight after induction of ovulation. In the first three days of pregnancy, the pregnant mice was exposed to electromagnetic radiation at low-intensity (150 μW/cm(2), ranging from 130 to 200 μW/cm(2), for 2- or 4-h exposure every day), mid-intensity (570 μW/cm(2), ranging from 400 to 700 μW/cm(2), for 2- or 4-h exposure every day) or high-intensity (1400 μW/cm(2), ranging from 1200 to 1500 μW/cm(2), for 2- or 4-h exposure every day), respectively. On the day 4 after gestation (known as the window of murine embryo implantation), the endometrium was collected and the suspension of endometrial glandular cells was made. Laser scanning microscopy was employed to detect the mitochondrial membrane potential and intracellular calcium ion concentration. In high-intensity, 2- and 4-h groups, mitochondrial membrane potential of endometrial glandular cells was significantly lower than that in the normal control group (P<0.05). The calcium ion concentration was increased in low-intensity 2-h group but decreased in high-intensity 4-h group as compared with the normal control group (P<0.05). However, no significant difference was found in mitochondrial membrane potential of endometrial glandular cells between low- or mid-intensity groups and the normal control group, indicating stronger intensity of the electromagnetic radiation and longer length of the radiation are required to inflict a remarkable functional and structural damage to mitochondrial membrane. Our data demonstrated that electromagnetic radiation with a 935-MHz phone for 4 h conspicuously decreased mitochondrial membrane potential and lowered the calcium ion concentration of endometrial glandular cells. It is suggested that high-intensity electromagnetic radiation is very likely to induce the death of embryonic cells and decrease the chance of their implantation, thereby posing a high risk to pregnancy.
Animals ; Electromagnetic Radiation ; Embryo Implantation ; physiology ; Endometrium ; physiology ; Epithelial Cells ; physiology ; Female ; Male ; Mice

Objective To analyze and discuss the correlations between different areas of corneal thickness and ICare rebound tonometer ( RBT ) .Methods Totals of 108 volunteers were selected as the subjects.Corneal thicknesses (central cornea, 2mm distance of corneal limbus nasal side and temporal side,) were measured by using optical coherence tomography ( OCT) , and intraocular pressure of different corneal areas were measured with RBT.The correlation of corneal thickness and intraocular pressure in different corneal zones were analyzed by Pearson correlation analysis.Results Thicknesses in central cornea,2 mm distance of corneal limbus nasal side and temporal side were (527.84 ±32.93), (551.31 ±35.40) and (533.91 ±34.42)μm, respectively.Numbers of IOP were (16.39 ±5.31), (16.37 ±5.48) and (16.44 ±5.72) mmHg, respectively.Central corneal (r=0.319,P<0.01), nasal side (r=0.267,P<0.05),temporal side (r=0.299, P <0.02 ), positive correlation was found between corneal thickness and intraocular pressure. Conclusions Corneal thickness of different areas will affect measurement results of intraocular pressures by using ICare rebound tonometer.

Objective? To explore the effects of different postures on intraocular pressure (IOP) in patiernts with glaucoma. Methods? Totally 100 patients admitted in the Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University between April and July 2018 were selected by convenient sampling. Icare rebound tonometry was ued to measure the patients＇ IOP when they lay on the back (0°, 10°, 20°, 30°) from 19:00 to 21:00. Results? There was statistically significant difference in the IOP of patients with different postures (P＜0.05). There was statistically significant difference in the IOP of patients laying on the bak at different angles (P＜0.05). There was no statistically significant difference in the IOP laying on the bak at 10°,20° and 30° (P＞0.05). Conclusions? The moderately elevated the head of the bed during the sleep of patients helps to improve and control the IOP at night.

Objective:To explore the effect of hypnotic music therapy in reducing eye pain in patients with diabetic retinopathy undergoing panretinal photocoagulation (PRP) .Methods:From January 2019 to January 2020, 60 diabetic retinopathy patients undergoing PRP admitted to Beijing Tiantan Hospital, Capital Medical University, were selected as the research object. Patients were divided into the control group and intervention group using the random number table method, with 30 cases in each group. Control group carried out routine high-quality nursing, and intervention group implemented hypnotic music therapy on the basis of control group. We observed the pain (Visual Analogue Score, VAS) , pain nursing satisfaction (Patient Satisfaction Scale) , anxiety (Self-rating Anxiety Scale, SAS) and depression (Self-rating Depression Scale, SDS) of the two groups of patients after PRP.Results:The pain scores of the 4 quadrants of the retina after PRP in intervention group were lower than those in control group, and the difference was statistically significant ( P< 0.05) . The SAS score and SDS score of intervention group after intervention were lower than those of control group, the difference was statistically significant ( P<0.05) . The pain nursing satisfaction score of intervention group was higher than that of control group, and the difference was also statistically significant ( P<0.05) . Conclusions:The application of hypnotic music therapy can reduce the degree of pain during the operation of diabetic retinopathy patients undergoing PRP, relieve anxiety and depression, improve nursing satisfaction, and enable patients to cooperate well with treatment.

Objective:To evaluate the dry eye status of nursing school students and understand their ocular surface health.Methods:Using the convenience sampling method, a total of 90 nursing students studying in the Nursing College of Capital Medical University in March 2018 were selected as the research objects. The OCULUS Jenvis-OSDI dry eye questionnaire and OCULUS ocular surface comprehensive analyzer were used subjectively and objectively to analyze the heath of ocular surface.Results:According to the OSDI dry eye questionnaire, mild dry eyes were 21 cases accounted for 23.3%, moderate dry eyes were 42 cases accounted for 46.7%, and severe dry eyes were 21 cases accounted for 23.3%. The main symptom of dry eye was foreign body sensation, accounting for 53.3%. The secondary symptoms were photophobia and blurred vision, which accounted for 46.7% and 40%, respectively. The OCULUS ocular surface comprehensive analyzer showed that the amount of tear secretion in both eyes was normal. In dry eye grading based on average tear film break-up time, critical dry eye accounted for about 60% and dry eye accounted for about 10%. Eye red analysis showed that 9 patients (10%) with hyperemia score>2.0 were dry eye caused by inflammation.Conclusions:The nursing school students have a high incidence of dry eye and subjective symptoms. It indicates that the students overuse eye and do not pay attention to eye hygiene. It is the responsibility of the nursing teacher to carry out health education for students, popularize scientific and rational use of eye knowledge, and pay attention to eye health.