There is a kind of intrinsic correlation between achievements and age.The average years of age of the scientists awarded the Nobel prizes in five fields are 30.9~33.3.Lots of ancient and modern scientists in many fields are similar to this.Therefore young people are able to make significant achievements,especially innovative achievements.This law is not well cogitated in our country,especially by the young themselves.To understand this law correctly will be of certain inspiration and significance not only for people from different age bracket to make achievement but also beneficial to improving the innovative capability of the whole country.

Employee motivation is to meet their needs and improve their productivity and work enthusiasm for the organization.Therefore,an accurate understanding of their needs is a prerequisite for the implementation of effective motivation.In view of this,we conducted a questionnaire survey of incentive factors for young medical staff at a public hospital.This study aimed at analyzing different incentive factors among medical staff with different seniority and job categories as well as their differences,in an effort to provide references for fine human resource management and motivation implementation at public hospitals.

BACKGROUND: Alveolar bone grafting is known to reduce nasal asymmetry by supporting a defective alar baseand a sunken nostril. However, there are no studies on details of changes in the upper lip with appropriatemeasurements.OBJECTIVE: To measure the change in the upper lip height and nostril sill after alveolar bone grafting.METHODS: Forty-six congenital unilateral cleft lip and alveolus (UCLA) patients (mean age 9.85 years). The patients underwent alveolar bone grafting with autogenous iliac bone grafts. The average bone graft volume was 2.98 cm3.Photographs of the frontal, lateral and basal views were obtained using standardized photographic techniques. The fixedposition points on the patients' faces were measured. Preoperative and postoperative upper lip height and projection, theproportion indexes of the nostril sill were compared.RESULTS AND CONCLUSION: The 6-month follow-up results showed that the height of the upper lip was increased,but no significant difference was found. The projection of the upper lip was more prominent, but there was not statisticallysignificant difference bbetween pre- and post-operation. The nostril sill was significantly elevated in three of four distanceitems. In conclusion, the height of the upper lip is elongated and the nostril sill is elevated after alveolar bone grafting inUCLA patients.

Objective To explore the mechanism of Tangshenkang in the prevention and treatment of diabetic nephropathy. Methods HK-2 cells were cultured in vitro and divided into control group, high glucose group (30 mmol/L D-glucose), control group (30 mmol/L D-glucose+10% animal serum), and Tangshenkang drug-containing serum therapy groups (30 mmol/L D-glucose+5%low concentration Tangshenkang, 30 mmol/L D-glucose+10%middle concentration Tangshenkang, 30 mmol/L D-glucose+20% high concentration Tangshenkang). After 24 h and 48 h treatment, MMP-9 and TIMP-1 in cell cultural supernatant were observed by ELISA. Results MMP-9 of HK-2 cultured with high glucose was much decreased and TIMP-1 increased significantly than the control group, with statistical significance (P<0.05). TIMP-1 significantly decreased and MMP-9 increased in HK-2 cultured with high glucose plus Tangshenkang compared with those only induced by high glucose, with statistical significance (P<0.05). Conclusion Tangshenkang could regulate the secretion of fibrosis cell factor of HK-2 cell induced by high glucose, which may be one of the mechanisms in its treatment of diabetic nephropathy.

Objectives To observe the effect ofGuizhi-Fuling capsule on the expression of AngⅡand eNOS.Methods 72 male Sprague-Dawley(SD) rats, aged three months, were randomly divided into three groups: a sham-operated group(n=24),a model group (n=24) and a treatment group (n=24). Renal tubulointerstitial fibrosis model was established via unilateral ureteral obstruction(UUO). Rats in the treatment group were treated withGuizhi-Fulingcapsule (125mg/kg),and the same volume of normal saline were given to the rats in the sham -operated group and the model group at the same time. Rats were put to death at day 7, 14, 21 Immunohisto-chemistry staining was performed to investigate both the expression of AngⅡ, eNOS in TIF. Results 1 Renal interstitium injury was seen in the model group and the treatment group rats at day 7. The degree of renal interstitium fibrosis in rats from the treatment group was lighter than that of the model group at day 7, 14, 21 (P< 0.01).2 At day 7,14 and 21, the expression of AngⅡin rats from the model group and the treatment group were higher than that of the sham-operated group (P<0.01), but those of the treatment group was lower than those of the model group (P< 0.01). The expression of AngⅡ in rats from the model and the treatment groups were increasing,the highest in the 21th day (P<0.01).3 At day 7, 14 and 21, the expression of eNOS in rats from the model group and the treatment group were lower than that of the sham-operated group  (P<0.01).ConclusionsGuizhi-Fuling capsule can alleviate the lesion of renal tissue in obstructive kidney and delay the development of TIF.

Liver transplantation is an effective curative treatment for hepatocellular carcinoma patients. However, most patients lost the change of surgery when diagnosed as hepatocellular carcinoma. Through local or systemic treatment, hepatocellular carcinoma can be treated in a downstaging manner to reduce tumor burden, so that patients who are beyond the transplantation criteria can still be up to the transplantation criteria after treatment, and finally receive liver transplantation. At present, pre-transplant downstaging treatment has been widely accepted. In this review, we summarized the indications, treatment options, treatment endpoints, and treatment outcomes of pre-transplant downstaging treatment.

AIM:To evaluate the effect of lipoic acid ( LA) on LPS-induced Parkinson disease ( PD) model of mice.METHODS:Female C57BL/6 mice of 10-month-old were randomly divided into saline control group , PD group and LA group.The PD mouse model was induced by intranasal instillation of LPS .Assays of tyrosine hydroxylase , microglia and nuclear factor kappa B ( NF-κB) were performed by the methods of immunohistochemistry and Western blotting .RE-SULTS:Intranasal LPS instillation exhibited basic characteristics of PD model .However, LA administration significantly improved motor dysfunction , protected dopaminergic neurons from damage , and inhibited NF-κB activation in inflammatory microglia in the substantia nigra area of the brain .CONCLUSION:LA may exert a profound neuroprotective effect by an-ti-neuroinflammatory reaction to arrest the progression of PD .

OBJECTIVE To compare the clinical effects of different doses of meropenem in the treatment of septic shock. METHODS One hundred and six patients with septic shock were randomly divided into standard-dose group and high-dose group， with 53 cases in each group. Patients in the standard-dose group were given standard dose of meropenem （initial intravenous injection of 1 g meropenem more than 30 minutes， followed by 1 g meropenem intravenously every 8 hours， each time for more than 3 hours）； patients in the high-dose group were given high dose of meropenem （initial intravenous injection of 2 g meropenem more than 30 minutes， followed by 2 g meropenem intravenously every 8 hours， each time for more than 3 hours）； other treatment measures were determined based on the specific conditions of the patients. The main observation indicators were the increments of sequential organ failure assessment （SOFA） scores and simplified acute physiology score Ⅱ （SAPS Ⅱ） after 3， 5 and 7 days of treatment in both groups. Secondary observation indicators included in-hospital mortality， 90-day all-cause mortality， 7-day microbial cure rate， 7-day clinical cure rate， serum procalcitonin （PCT） and C-reactive protein （CRP） levels after 3， 5 and 7 days of treatment， hospitalization days in the intensive care unit， ventilator treatment days， the highest dose of norepinephrine. The occurrence of adverse drug reaction in the two groups was observed. RESULTS The increments of SOFA scores and SAPS Ⅱ after 7 days of treatment， the levels of PCT and CRP after 5 and 7 days of treatment as well as the 90-day all-cause mortality in the high- dose group were significantly lower than the standard-dose group （P＜0.05）. There were no statistically significant differences in other indicators between the two groups （P＞0.05）. CONCLUSIONS High-dose meropenem treatment for septic shock has better clinical effects and is safer than standard-dose meropenem.

Objective: To identify the characteristics including clinical features and pulmonary computed tomography (CT) features of heart failure and novel coronavirus pneumonia(COVID-19). Methods: This study was a retrospective study. A total of 7 patients with Heart failure and 12 patients with COVID-19 in the Second Xiangya Hospital of Central South University between December 1, 2019 and February 15, 2020 were enrolled. The baseline clinical and imaging features of the two groups were statistically analyzed. Results: There was no significant difference in age and sex between the two groups, but the incidence of epidemiological contact history, fever or respiratory symptoms in the COVID-19 group was significantly higher than that in the heart failure group (12/12 vs. 2/7, P=0.001; 12/12 vs. 4/7, P<0.001). While the proportion of cardiovascular diseases and impaired cardiac function was significantly less than that of the heart failure group(2/12 vs.7/7, P<0.001; 0/12 vs.7/7, P<0.001). For imaging features, both groups had ground-glass opacity and thickening of interlobular septum, but the ratio of central and gradient distribution was higher in patients with heart failure than that in patients with COVID-19 (4/7 vs. 1/12, P=0.04). In heart failure group, the ratio of the expansion of small pulmonary veins was also higher (3/7 vs. 0, P=0.013), and the lung lesions can be significantly improved after effective anti-heart failure treatment. Besides, there are more disease with rounded morphology in COVID-19 (9/12 vs. 2/7, P=0.048) . Conclusions More patients with COVID-19 have epidemiological history and fever or respiratory symptoms. There are significant differences in chest CT features, such as enlargement of pulmonary veins, lesions distribution and morphology between heart failure and COVID-19.