1. Correlation of serum adiponectin level and adiponectin receptor expression with hepatic pathological changes in rats with non-alcoholic fatty liver diseases
Academic Journal of Second Military Medical University 2010;30(1):9-13
Objective: To investigate the correlation of serum adiponectin and hepatic adiponectin receptor (adipoR) expression with pathological changes of the liver in the rats with non-alcoholic fatty liver diseases (NAFLD). Methods: The NAFLD model was induced by an oral administration of high fat diet. The rats were sacrificed at 2, 4, 8, and 12 weeks. ELISA was used to measure the serum adiponectin and other biochemical parameters. The liver index was also examined. AdipoR mRNA expression in the liver were measured by RT-PCR. Liver slices were observed with Sudan III staining, H-E staining and Masson staining for pathological changes. Results: The serum adiponectin in the model group were gradually decreased during the 2nd, 4th 8th and 12th week, and were all significantly lower than those in the control group at corresponding time points (P<0.01). Serum adiponectin level was found negatively correlated with the liver index (r=-0.383, P=0.015) hepatic inflammation scale (r= 0.475, P=0.002), and hepatic fibrosis scale (r=-0.353, P=0.025). The hepatic adipoR1 mRNA expression in the model group was gradually increased (P<0.01 from the 4th week) and adipoR2 mRNA expression was gradually decreased compared with the control group (P<0.01 from the 2nd week). AdipoR2 mRNA expression was negative correlated with liver index(r=-0.431, P=0.006) and hepatic fibrosis scale (r=-0.353, P=0.025). Conclusion: The hepatic adipoR mRNA expression is abnormal in rats with NAFLD; the serum adiponectin level is decreased and negatively correlated with liver inflammation and fibrosis scale, indicating that the decreased serum adiponectin level, pathological hepatic adipoR expression, especially the decreased AdipoR2 expression in the liver may be related to the pathogenesis of NAFLD.
2.Evaluation of flight attendants' ocular surface after different refractive corrections
International Eye Science 2017;17(10):1982-1984
AIM:To evaluate flight attendants' ocular surface after different refractive corrections. ·METHODS:Forty-two flight attendants (84 eyes) were enrolled in the study. Those flight attendants, who were followed up from September 2014 to September 2016, all followed the doctor's orders. According to different refractive corrections, those flight attendants were divided into 4 groups: corneal refractive surgery group, soft contact lens group, rigid gas permeable contact lens ( RGP) group and control group without any refractive corrections. OSDI scores, tear meniscus heights, BUTs, fluorescein staining scores and Schirmer's tests were taken and analyzed. ·RESULTS: Compared with the control group, OSDI scores were worse, tear meniscus heights ( TMH ) were reduced, BUTs were shortened, fluorescein staining(FS) scores were worse, Schirmer's Tests ( SⅠt) were shorter in soft contact lens group and corneal refractive surgery group (P<0. 05). However, the above parameters did not change significantly in RGP group ( P>0. 05 ) . There was no significant difference in lid margin abnormalities among the four groups (F=3. 82, P=0. 45). ·CONCLUSION: RGP can improve flight attendants'ocular surface micro-environment.
3.lnfluence of preoperative artificial tears on tear film after phacoemulsification on dry eye of diabetes patients
International Eye Science 2015;(5):843-845
?AlM: To discuss the artificial tears on the tear film of diabetic patients with dry eye preoperatively, and the influence on the tear film’s fuctional after phacoemulsification.
?METHODS: Fifty-four diabetic patients with dry eye (60 eyes) were followed up before phacoemulsification. Preoperatively, group A ( 30 eyes in 28 cases ) was treated with Hydroxyl lndican eye drops and group B (30 eyes in 26 cases) was not treated. Postoperatively, both group A and B were treated with Tobramycin Dexamethasone eye drops, Oprah Winfrey lbuprofen eye drops and Hydroxyl lndican eye drops. Dry eye symptoms, break up time (BUT), SchirmerItest (SIt), fluorescein stain test ( Fl ) were measured at 3d preoperatively, and 1, 7, 30, 90d postoperatively.
? RESULTS: At 3d preoperatively, there was no statistical differences between the two groups for dry eye symptoms, BUT, S I t, Fl ( P>0. 05 ). At 1 and 7d postoperatively, there were significant statistical differents between the two groups for dry eye symptoms (P<0. 05). And dry eye symptoms scores of group A were less than that of group B. At 1, 7, 30d postoperatively, BUT was longer, FL was less, Slt was increased in group A, with significant statistical differences (all P<0. 05). At 90d postoperatively, two groups of dry eye symptoms, BUT, S I t, Fl had no statistical significance (P>0. 05).
? CONCLUSlON: Using artificial tears before phacoemulsification can improve symptoms of the diabetic patients with dry eye and accelerate the recovery of the tear film.
4.Study of combination methods for formula composition of Chinese herbal medicines and their components.
Journal of Integrative Medicine 2009;7(7):601-6
Chinese prescription is composed of Chinese herbal medicines according to "seven compatible relations" and "sovereign, minister, assistant and courier" principles. There are many methods in the research on combination and composition of Chinese herbal medicines. These methods are classified into traditional model and modern model. For the time being, compatibility study of traditional Chinese herbal medicines has developed from traditional model to modern model. The traditional model mainly studies the effects and mechanisms of the whole and split formulae in medical crude drug level, while the modern model mainly studies the effects and mechanisms of Chinese herbal medicine compositions in components combination level. Moreover, quantitative analysis becomes probable by modern model method. Now, setting up of new components combination model and optimal composition methods will not only develop the combination and the composition of Chinese herbal medicines from medicinal crude drug level to components composition level, but also get new formulae which have clear components and effects, and action targets and mechanisms. It will effectively promote the development of Chinese medicine formula.
5.Studies on the prolactin receptors on the membrane of rat liver cells
Chinese Journal of Pathophysiology 1989;0(05):-
Binding sites or receptors for prolactin were identified in crude membrane fractions prepared from female lactating Sprague-Dawley rat using receptor radioassay. The results further indicated that the membrane of rat liver cells are rich in prolactin receptors, and the Scatchard analysis of the binding of ~(125)I-oPRL to receptors revealed that female rat liver cells contained two classes of prolactin receptors (Kd_1=3.20?10~(-10) M, Kd_2=1.26?10~(-8)M) with high specificity.
6.Research progress in T-cell lymphoblastic lymphoma
Journal of International Oncology 2012;(12):942-944
T-lymphoblastic lymphoma (T-LBL) is a rare form of non-Hodgkin lymphoma (NHL),which is biologically similar to T-acute lymphoblastic leukemia(ALL),and occurs most frequently in childhood and adolescence.T-LBL progresses fast.The treatment of LBL with conventional chemotherapy regimens for NHL has shown relatively low rates of complete remission and of disease-free survival.Now,it is reasonable to treat patients with LBL with the current ALL-type protocols,and hematopoietic stem cell transplantation may yield a more favorable overall survival (OS) in T-LBL patients,especial in relapsed or refractory LBL patients.
7.Effect of Salvia miltiorrhiza injection on hyperpolarization-activated current channels in dorsal root ganglion neurons of rats
Acta Pharmaceutica Sinica 2006;41(11):1038-1043
Aim To explore the modulation of Salvia miltiorrhiza on hyperpolarization-activated current (Ih) channels in dorsal root ganglion (DRG) neurons of rats and identify the mechanism of Salvia miltiorrhiza in alleviating pain and inhibiting calcium overload. Methods The effect of Salvia miltiorrhiza injection on Ih channels in DRG neurons of rats were examined by using whole-cell patch clamp technique. Results The experimental results showed that the amplitude of Ih evoked by -150 mV was (-1.06±0.18) nA. The Ih could be fitted well into the single kinetics and the time constant of activation, τ was clearly voltage-dependent with τ=(322.14±28.81) ms at -100 mV, decreasing to τ=(62.51±9.78) ms at -150 mV. The reversal potential of Ih was (-35.03±1.12) mV measured from tail currents. But no significant differences were found between the DRG neurons in the absence and presence of Salvia miltiorrhiza injection (10%, 25%, 50%) in the current amplitude, the time constant of activation and the reversal potential. The only difference between the DRG neurons in the absence and presence of Salvia miltiorrhiza injection was the half-activation potential of Ih. In control recordings the half-activation potential was (-106.07±3.59) mV. By comparison, the half-activation potentials changed to (-111.59±3.79) mV (n=31 neurons, P<0.05), (-119.37±4.96) mV (n=31 neurons, P<0.05) and (-121.23±3.86) mV (n=31 neurons, P<0.05) in the presence of 10%, 25%, 50% Salvia miltiorrhiza injection, respectively. Conclusion Only the half-activation potential of Ih in the arthritic and neuropathic rat models shifted in the depolarizing direction, which increased the electrophysiological activity of Ih and made it related to peripheral hyperalgesia. The selective inhibition of Salvia miltiorrhiza on the electrophysiological activity of Ih may be one of the mechanisms underlying its analgesic effects.
8.Management of blood pressure in elderly patients with diabetes mellitus
Chinese Journal of Endocrinology and Metabolism 2014;30(11):1024-1026
The elderly patients with diabetes often have a high prevalence of hypertension.Meanwhile,hypertension is a major vascular risk factor in this population.The benefit of proper management of hypertension in elderly patients with diabetes has been well recognized.According to the IDF Global Guideline for Managing Old People with Type 2 Diabetes,lifestyle interventions are recommended to form the first step in managing hypertension in elderly patients with diabetes.Pharmacological therapy should be initiated in addition to lifestyle interventions after 6 weeks during which non-pharmacological therapy has failed to achieve blood pressure targets.ACE-inhibitors are the first choice for initial medication,especially in the presence of diabetic nephropathy.ARBs can be used in people who cannot tolerate ACE-inhibitors.Diuretics or calcium channel blockers can be used as the first add-on therapy to ACE-inhibitors or ARBs if they fail to achieve target blood pressure.β-blockers should be considered for combination therapy in people with tachycardia or coronary artery disease.The generally recommended blood pressure target for older people with diabetes should be less than 140/90 mmHg(1 mmHg=0.133 kPa).
9.Use of literature novelty assessment reports in medical researchers of Guizhou Province
Chinese Journal of Medical Library and Information Science 2015;(7):66-71
The use of literature novelty assessment reports in medical researchers of Guizhou Province and its in-fluencing factors were investigated with questionnaires combined with interview, and measures were put forward for improving the use and level of literature novelty assessment reports, and service for scientific research.
10.Clinical applications of optical fundus imaging technology
Chinese Journal of Ocular Fundus Diseases 2014;30(6):535-539
Optical imaging technology of ocular fundus,including fundus fluorescein angiography (FFA),optical coherence tomography (OCT) and fundus autofluorescence (FAF),is growing at an unprecedented speed and scale and is integrating into the routine clinical management of ocular fundus diseases,such as diagnosis,treatment,and mechanism study.While FFA allow us to observe the retinal and choroidal blood circulation,OCT and FAF are non-invasive,fast and quantifiable measurement; such techniques show even more unique advantages and are favored tools.All these retinal imaging technologies,together with a variety of retinal function assessments,bring us into the era of big data of ocular fundus diseases.All of these developments are the challenges and opportunities for the operator and user of these fundus optics imaging technologies.In order to improve its clinical applications and allocate resources rationally,we need to understand the optical properties of these retinal imaging technologies,and standardize diagnosis behavior.This is a continuous learning process needs to continue to explore.