As the fourth member of the globin family, cytoglobin ( CYGB) is a hypoxia-induced gene, and its expression is upregulated under hypoxia.CYGB is widely distributed in the living body and has a variety of physiological functions, such as anti-oxi-dative stress, anti-fibrosis, and neuroprotection.It also plays a protective role in cardiovascular disease, cancer, and other hypoxia-re-lated diseases.This article presents an overview on the structure and distribution of CYGB, its physiological functions of anti-fibrosis, anti-cancer and muscle regeneration, and the regulation and the mechanism of its expression under hypoxia.

Multiple sclerosis (MS) is a demyelinating autoimmune disease of the central nervous system. It mainly occurs in young and middle-aged people and has a high disability rate. The pathogenesis of MS has not been fully elucidated, with great genetic heterogeneity, diverse clinical phenotypes, lack of specific biomarkers, numerous and complicated research data, which bring great challenges to the diagnosis and treatment of MS. Artificial intelligence (AI), as the cutting-edge hotspot in the development of science and technology, is widely used in the medical field to assist in the diagnosis, treatment and prognosis of various diseases. Its infinite learning ability greatly promotes the management of MS. This article will review the application of AI in MS diagnosis and treatment.

A registered dietitian credential is generally accepted and recognized as the most authoritative certificate of eligibility for American dietitians.In this article we describe in detail the American Registered Dieti-tian (RD) training system,administered by the Commission on Accreditation for Dietetics Education (CADE) and the Commission on Dietetic Registration (CDR) of the American Dietetic Association (ADA).Taking the Division of Nutritional Sciences of Cornell University as a good example of the RD training unit,we describe the Cornell Un-dergraduate Didactic Program in Dietetics and Dietetic Internship.Career opportunities and job outlook for Ameri-can registered dietitians are also presented.

Objective To detect the relationship of blood pressure variability (BPV) and angiotensinogen(AGT) T235M polymorphism with Binswanger's disease (BD).Methods Totally 122 cases with BD and 108 cases with essential hypertension had been enrolled.Ambulatory blood pressure monitoring was used to get the data of BPV and mean blood pressure (MBP).PCR-RFLP was applied to detect genotype of AGT T235M.Results Distribution of MM+MT genotype and frequency of M allelic were higher in BD group (51.6％,29.9％) than in hypertension group(27.8％,16.2％)(x2 ＝13.543,11.995,P＜0.01).The variability of night time blood pressure (11.8±2.8,9.1±2.5) and 24 hours diastolic blood pressure(11.6±6.0) in BD group were increased compared with those in hypertension groups(10.9±2.4,8.2±3.2,10.1±4.6)(t＝2.59,2.64,2.09,all P＜0.05).Prevalence of anti-dipper was higher in BD group (32.8％) than in EH group (16.7％)(x2 ＝7.894,P＜0.01).Among BD patients,anti-dipper who carried MM or MT genotypes (44.4 ％) was more than that who carried TT genotype (20.3％) (x2 ＝ 8.760,P＜ 0.01).Conclusions Fluctuations of nighttime blood pressure and diastolic pressure are higher in patients with BD,and the relative frequency of MM or MT genotype is higher.Moreover,among patients with BD who carried MM or MT genotypes are apt to have anti-dipper.MM or MT genotype is related to BD by means of affecting blood pressure circadian rhythms probably.

Objective To study the Dai medicine Yapa Tang inhibition on mice Lewis lung carcinoma growth and metastasis,and to explore the impact of the drug on mice immune function. Methods Subcutaneous injection LLC(Lewis lung carcinoma cells)in C57BL/6 mice’s right armpit was to establish rat models. 60 successful tumor-bearing mice were selected and thenafter inoculating LLC were randomly divided into 6 groups, namely the control group,Yapa Tang low-dose group,Yapa Tang mid-dose group, Yapa Tang high-dose group,cyclophosphamide group and Yapa Tang mid-dose combining cyclophosphamide group.Then,after inoculated 3 days,each group was administrated with medicines.The first four groups wereintragastricly administrated with 0.9% saline, low-dose, mid-dose and high-dose Yapa Tang with0.4ml respectively;the cyclophosphamide group was administrated with cyclophosphamide,and Yapa Tang mid-dose combining cyclophosphamide group was administrated with middle dose Yapa Tang and cyclophosphamide. After 21days, blood was taken from eyeballs. Tumor tissue, spleen, thymus were gotten and weighted to calculate inhibitory rate,spleen and thymus index, enzyme-linked immunosorbent assay (Elisa) was adopted to detect Interleukin-2(IL-2), Interleukin-10(IL-10)and their contents. Results The tumor weight of Yapa Tang high-dose group, cyclophosphamide group and Yapa Tang mid-dose combining cyclophosphamide group was 3.46±0.39, 2.39±1.04 and 2.30±0.76 respectively,all lower than the control group, which was 5.21±0.50, showing significant difference(P<0.05), with the inhibition rate were33.69%, 54.12%, 56.00%. The thymus and spleen index of Yapa Tang low-dose group, middle-dose group and high-dose group was2.16±0.69, 2.24± 0.76, 2.23 ± 0.63, 16.82 ± 3.14, 15.82 ± 1.72, 17.08 ± 3.65, significantly higher than that of the control group,which was1.94±0.6, 15.17±3.53. The IL-2, IL-10 level of control group were(883.54±181.49)ng/L, (1 106.86±343.79)ng/L. Yapa Tanggroupsshowed an increase in IL-2(1 732.29±100.52)ng/L, (1 813.33± 168.32)ng/L, (2 275.63 ± 394.76)ng/L and the decrease in level of IL-10, respectively were(834.02 ± 271.97)ng/L, (636.83±270.56)ng/L, (682.08±147.85)ng/L, with significant difference. Conclusion Yapa Tang can inhibit lewis lung cancer grow and reduce the number of lung metastases, regulate immune cytokines IL-2 and IL-10, and promote the immunity of tumor-bearing mice.

Objective:To determine the residual formaldehyde fumigation on the surface of pharmaceutical equipments by AHMT method. Methods:The reaction time of AHMT was controlled in 20 min, the solution with sodium periodate was then shaken for 30 seconds and stood for 30 seconds, and then the absorbance at 550 nm was measured. Results: The linear range of formaldehyde was 0. 250~2. 495 μg·ml-1. The recovery of formaldehyde on glass plate, color steel plate and stainless steel plate was (83. 42 ± 1. 48)%(n=3), (83. 63 ± 1. 94)%(n=3)and (83. 94 ± 2. 28)%(n=3), respectively. Conclusion:The method is proved to be convenient and accurate, and is suitable for the determination of formaldehyde on the surface of pharmaceutical equipments.

Objective To observe the effect of PKB gene silencing on the growth of gastric cancer cell line SGC-7901 in vitro.Methods Gene transfection technique was used to transfect AKt2 siRNA into gastric cancer cells.Akt2 expression was detected by RNAi technique,Akt2 protein level was detected by Western blot,and the change of cell cycle distribution and apoptosis of SGC-7901 cells were detected by flow-cytometry,SGC-7901 proliferation was measured by MTT method.Results After SGC-7901 cells transfected with Akt2 siRNA,the expression of protein level decreased obviously(P

OBJECTIVE:To prepare nicotine-?-CD inclusion compound and evaluate its quality.METHODS:The inclusion complex was prepared by saturated water solution method,and the preparation conditions were optimized by orthogonal test with the ratio of nicotine to?-CD(A),the inclusion temperature(B),the inclusion time(C)as factors and with the inclusion rate and the yield as indexes for evaluation.The formation of the inclusion complexes were verified by inclusion equilibrium constant analysis and its dissolution characteristics in vitro were investigated.The stability of nicotine-?-CD inclusion compound and the mixture of nicotine and?-CD were studied by conducting high-temperature,high humidity and high light tests.RESULTS:The optimum preparation conditions for the inclusion compound were established as:A was 1:3, B was 60℃and C was 2 hours.The inclusion rate of nicotine reached 65.28%;the yield was 79.55%,and the slow-release rate at 150 min was 92.26%.Under different temperature,humidity and high light conditions,the content of nicotine was always significantly higher in the inclusion complex than in the mixture.CONCLUSIONS:The inclusion technology is simple and the conditions were easily controllable,and the prepared nicotine-?-CD inclusion compound enjoys good stability and sustained-release property.

This study examined the possible mechanism of sublingual immunotherapy (SLIT) in the treatment of allergic asthma. Forty asthma patients allergic to dust mite were enrolled. They received SLIT with dermatophagoides farinae (Der. f) drops for one year. Thirty healthy subjects served as controls. The levels of IL-4 and IFN-γ of peripheral blood mononuclear cells (PBMCs) were determined in allergic asthma patients before and after the SLIT as well as the healthy subjects. The results showed that the level of IL-4 was substantially increased and that of IFN-γ remarkably decreased in the patients before the SLIT as compared with those in the healthy subjects (P<0.05). After the SLIT, the level of IL-4 was significantly reduced and that of IFN-γ elevated in these allergic asthma patients. It was concluded that sublingual immunotherapy is effective for patients with allergic asthma. And it may work by regulating the balance of Th1/Th2 through changing the expression of IL-4 and IFN-γ in PBMCs.