Objective To observe and analysis the features of images of fundus fluorescein angriography (FFA) in low-perfused retinopathy caused by cephalo-cervical peripheral vascular stenosis or occlusion. Methods The results of FFA of 27 patients diagnosed with carotid artery stenosis or occlusion by digital subtraction angiography (DSA) and examination of Doppler and vascular-pulsation were retrospectively analyzed. Result All of the patients had a delayed arm-retinal circulation duration from 20.0 to 81.08 seconds with the mean of 32.1 seconds; a delayed retinal arteriovenous filling duration from 6 to 64.0 seconds with the mean of 24.2 seconds. Delayed arm-retinal circulation duration and retinal arteriovenous filling duration in 10 cases (37.0%); microangioma, vascular wall staining, nonperfused capillary area in 11 (40.7%); and anterior ischemic syndrome in 6 (22.2%) were found. In the 6 patients with anterior ischemic syndrome, 4 cases had narrow retinal artery, segmental changes of blood stream, vascular atresia, and abnormal arterio-venous anastomosis, and 2 cases had bold vascular loops. Conclusions The main manifestations of FFA in patients with low-perfused retinopathy are malperfusion and retinal ischemia, whose degrees relate to the extend of carotid artery stenosis or atresia, and the process of the disease.Serious retinal ischemia may combined with anterior ischemic syndrome.

Objective:To investigate the influence of hepatocyte growth factor(HGF)on the expression of vascular endothelial growth factor C(VEGF-C)and the mechanism of HGF-induced VEGF-C expression in tongue squamous cell carcinoma Tca8113 cells.Methods:Tca8113 cells were cultured and exposed to HGF with various concentrations.The expression level of VEGF-C was assessed by ELISA.Signaling transduction inhibitors LY294002,U0126,SP600125,SB203580 was used to block PI3K/Akt,P44 /P22MAPK,JNK,P38MAPK signaling pathways,respectively.Then,the expression level of VEGF-C was detected by ELISA.Re-sults:The VEGF-C expression of Tca8113 cells increased at the beginning and decreased later with the increase of HGF concentra-tion.When the concentration of HGF was 40 ng/ml,VEGF-C expression level was the highest.Inhibitor LY294002 of PI3K/Akt and Inhibitor U0126 of P44 /P22MAPK significantly blocked the effects on HGF-induced VEGF-C up-regulation(P ＜0.01 ).Inhibitor SP600125 of JNK and inhibitor SB203580 of P38MAPK didn't interfere HGF-induced VEGF-C expression(P >0.05).Conclusion:HGF contributed to the expression of VEGF-C,PI3K/Akt and P44 /P22MAPK signaling pathways may be involved in HGF-induced VEGF-C up-regulation,and may play potential roles in lymphatic metastasis of oral squamous cell carcinoma.

s: Objective To establish an HPLC method to determine the contents of ginsenoside Rg1, ginsenoside Re and ginsenoside Rb1 in Wenyang Zhenshuai Granules.Methods The separation was preformed on Agilent TC-C18 column (4.6 mm×250 mm, 5 μm). The mobile phase consisted of acetonitril-0.05% aqueous solution of phosphoric acid with gradient elution (0–35 min, 19% acetonitrile; 35–58 min, 19%–29% acetonitrile; 58–70 min, 28% acetonitrile; 70–100 min, 29%–40% acetonitrile). The flow rate was 1.0 mL/min; the wavelength of detector was 203 nm; the temperature of column was 35℃.Results The calibration curves showed good linearity in the range of 0.22–2.2 μg (ginsenoside Rg1,r=0.9998), 0.22–2.2 μg (ginsenoside Re,r=0.9998) and 0.26–2.6 μg (ginsenoside Rb1,r=0.9991), respectively. The average recoveries of ginsenoside Rg1, ginsenoside Re and ginsenoside Rb1 were 98.04%, 96.58% and 96.75%, respectively.Conclution The method is accurate, hypersensitized and reproducible, which can be applied to the quality control of Wenyang Zhenshuai Granules.

Objective To investigate the signaling pathway and the key signal molecules of protein kinase (RIPK)3 in SH-SY5Y cells. Methods SH-SY5Y cells were transfected with RIPK3 expression plasmid vector to upregulate intracellular RIPK3, while the SH-SY5Y cells were transfected with empty vector plasmid, which was considered as control group. Western blot assay was used to check the expression of exogenous RIPK3 in cells. The proliferation rate of SH-SY5Y cells was determined by MTT assay at designated time to detect exogenous RIPK3 activity. Whole transcriptome sequencing (RNAseq) was used to detect the transcription of genes. Whole-transcriptomic gene transcription was measured by following Ingenuity Pathway Analysis (IPA) to obtain downstream signaling pathways and the key molecule, which were partly confirmed by following droplet digital PCR (ddPCR). Results Exogenous RIPK3 showed biological activity in SH-SY5Y, which inhibited the proliferation of cells. IPA showed that znic finger protein 36 (ZFP36) was significantly up-regulated as compared with that of the control group. The tran?scription levels of ZFP36 downstream genes such as tumor necrosis factor (TNF), brain derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF) and mRNA-decapping enzyme 2 (DCP2) were affected at the same time. Conclusion Within the limitations of this study, it seems that RIPK3 is notable for the development, inflammation and tumorigenesis of the nervous system as an independent regulator of ZFP36 gene and downstream effectors.

Objective To investigate the clinical efficacy of a needle knife in treating knee meniscus injury. Methods One hundred patients with knee meniscus injury (112 knee joints) were randomly allocated to treatment and control groups, 50 cases each. The treatment group received needle knife therapy and the control group, an injection of sodium hyaluronate injectio into knee joint cavity. The main clinical symptoms and signs around the knee joint were observed and the knee function score was recorded in the two groups before and after treatment. the clinical therapeutic effects were evaluated in the two groups. Results There were statistically significant differences in pre-/post-treatment main clinical symptom and sign index (pain score, swelling score, activity score and tenderness index score) difference values between the two groups (P<0.05). There were statistically significant differences in the main clinical symptom and sign index difference values at follow-up compared with before treatment between the two groups (P<0.05). There was a statistically significant differences in the knee function score after treatment and at follow-up compared with before treatment in the two groups (P<0.01,P<0.05). There was a statistically significant differences in the knee function score between the treatment and control groups after treatment and at follow-up (P<0.05). Post-treatment excellence rate and total efficacy rate were 94.0%and 100.0%, respectively, in the treatment group and 72.0%and 98.0%, respectively, in the control group. There was a statistically significant differences in post-treatment excellence rate between the two groups (P<0.05). Follow-up excellence rate and total efficacy rate were 96.0% and 100.0%, respectively, in the treatment group and 76.0% and 98.0%, respectively, in the control group. There was a statistically significant differences in follow-up excellence rate between the two groups (P<0.05). Conclusion Needle knife therapy is an effective way to treat knee meniscus injury.

ObjectiveTo observe andanalyze the clinical efficacy of needle knife treatment for knee meniscus injury from improving knee biomechanical balance and to provide a therapeutic basis and method for clinical practice.MethodOne hundred patients (112 knees) with knee meniscus injury meeting the inclusion criteria were allocated, in order of visits, to observation and control groups, 50 cases each. They were treated with a needle knife and an injection of sodium hyaluronate injectio into knee joint cavity, respectively. Changes in the indices were observed and assessed in the two groups by recording the plantar pressure analysis score and the knee function score before and after treatment and at follow-up. The clinical therapeutic effects were evaluated in the two groups.ResultThemaximum load, time integral difference value and load ratio around the knee joint decreased significantly in both observation and control groups after treatment and at follow-up (P<0.05). The regulating effect on knee joint force balance was better in theneedle knife group than in the control group (P<0.05). The improving effect on knee joint function was significantly better in the observation group than in the control group (P<0.01). The excellence rate was significantly higher in the observation groupthan in the control group after treatment and at follow-up (P<0.05).ConclusionNeedle knife treatment restores the function of the knee joint by loosing focal soft tissues around the knee joint, improving knee joint load imbalance and correcting the mechanical equilibrium around the knee joint in patient with knee meniscus injury. It has a definite curative effect on the disease.