1.Relationship between Somatostatin Neurons and Vasopressin or Neurotensin:A Double Labeling Electromicroscopic Study
Academic Journal of Second Military Medical University 1982;0(02):-
In order to demonstrate the relationship between somatostatin (SRIF) and vasopressin (VP) or ncurotensin (NT) in periventricular nucleus (Pv) and paraventricular nucleus (PVN) of the rat hypothalamus, pre-embedding PAP labeling SRIF combined with post-embedding colloid gold labeling VP or NT was used in this study. The results presented that some of SRIF-immunoreactive cells were VP positive. SRIF and VP co-contained dendron was observed between the subendymal cells. SRIF and VP double labeled axon made synaptic contact with SRIF and VP double labeled perikarya and other unstained dendrons. In the Pv and PVN, coexistence of SRIF and NT in the same neurons was revealed. Its axon made synapse with negative dendron. In Pv, SRIF axon made synaptic contact with SRIF and NT co-contained dendron. Some of SRIF-immunoreactive cells were not labeled by VP or NT. These results suggested that the interregulation between SRIF and VP or NT might occur intracellularly. The two kinds of double labeled neurons were involved in local nucleus modulation. The SRIF and VP co-contained neurons may receive information and secrete hormone into cerebrospinal fluid.
2.The clinical contrast research of treatment in children of abdominal allergicpurpura
Chinese Journal of Primary Medicine and Pharmacy 2012;(24):3729-3730
Objective To explore the effective treatment in children of abdominal allergicpurpura.Methods To retrospectively analyze the clinical data of 54 children with abdominal allergicpurpura.54 cases were divided into three groups.Each 18 cases in group Ⅰ,groupⅡ,and group Ⅲ.It was used large doses of methylprednisolone in the group Ⅰ,ranitidine in the groupⅡ,and cimetidine in the groupⅢ,based on conventional treatment.To analyze the effect and adverse effect after the treatment.Results The effect of groupⅠ,and groupⅡ,was significantly higher than group Ⅲ(t=11.775,8.901,7.613,5.786,10.105,12.347,all P<0.05).There was no significant difference between groupⅠ,and group Ⅱ(P>0.05).The adverse effect of groupⅠ,was significantly higher than the other groups(x2=4.500,5.017,all P<0.05).Conclusion The treatment of hormone had obvious effect in children with abdominal allergicpurpura,but it had some risks in the gastrointestinal,so we should close observe the gastrointestinal tract in children.Ranitidine and cimetidine are the drugs of inhibiting gastric acid secretion,but the ranitidine much better than cimetidine.
3.Progress of differentiation of embryonic stem cells into insulin-producing cells
International Journal of Biomedical Engineering 2006;0(02):-
Islet transplantation is one of the effective methods for diabetic therapy. Insulin-producing cells oriently differentiated from embryonic stem cells provide enough cell sources for islet transplantation. The article reviews the progress of recent research on differentiation of embryonic stem cells into insulin-producing cells.
4.OBSERVATION OF SEXUAL DIMORPHISM OF SOMATOSTATIN IMMUNOREACTIVE NEURONS IN THE RAT HYPOTHALAMUS
Acta Anatomica Sinica 1957;0(04):-
The distribution and numbers of SRIF-immunoreactive cell bodies and fibers in normal and castrated rats hypothalamus were studied by PAP immunocytochemistry. The results showed that the positive cell bodies and fibers in periventricular nucleus (PV), suprachiasmatic nucleus (SCN) and paraventricular nucleus (PVN) were more numerous in male than in female. Another marked sexual dimorphism was found in medial preoptic area (MPO) which was filled with dense plexus of varicose immunoreactive fibers in male, while there were low density of stained fibers in female. Orchiectomized rats had fewer number of positive neurons in PV, PVN, SCN and arcuate nucleus (ARN), and lower density of fiber in SCN, ARN, MPO and median eminence than the normal rats. On the contrary, in the ovariectomized rats could find more numerous cell bodies and fibers in these areas. When gonadal steroid was given after gonadectomy, the SRIF neurons became similar to the normal.
6.Preliminary study of Conbercept injected intravitreally for the treatment of wet age-related macular degeneration
International Eye Science 2017;17(8):1554-1557
AIM:To observe the preliminary efficacy of conbercept injected intravitreally for the treatment of wet age-related macular degeneration(wAMD).METHODS:Seventeen wAMD patients (18 eyes) were selected to receive conbercept injection.All patients were given a single conbercept injection every month,3 times.Before and after 1,2,3mo of the injection,the best corrected visual acuity (BCVA),intraocular pressure (IOP,measured by Non-contact tonometer),fundus photography,fundus fluorescein angiography(FFA),indocyanine green angiography(ICG),optical coherence tomography(OCT) examination and the complications incidence were compared.RESULTS:Three months after conbercept injection,the BCVA improved in 15 eyes (83%),stable in 3 eyes (17%).Before treatment,the average central macular thickness was 421.72±54.43μm,at 1 and 2 and 3mo after treatment,the average central macular thickness was 337.89±25.88μm,293.56±26.87μm,266.89±19.10μm respectively.There were significant differences compared with before and after injection(P<0.05).In the final follow up,FFA and ICG showed that the leakage in macular area disappeared in 15 eyes (83%),still existed in 3 eyes (17%),in those 3 eyes the injection was given for one or two times till the leakage disappeared.Elevated intraocular pressure occurred in 2 cases (26mmHg,23mmHg),after 1d down to normal.Another patient showed postoperative envy,given left ofloxacin eye drops after 2d,then back to normal.There was no serious ocular adverse reactions.CONCLUSION:Intravitreal injection conbercept for wAMD can significantly improve the visual function,reduce the macular edema and the leakage with higher safety and less complications.However the prolonged efficacy needs further observation.
7.Insulin receptor substrate expression and insulin resistance in intrauterine growth retarded rats
Qian WANG ; Yan-Qin YING ; Qin NING ; Xiao-Ping LUO ;
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
Insulin receptor substrate(IRS)-1 and IRS-2 expression levels of liver tissues and skeletal muscle in intrauterine growth retarded(IUGR)rats were investigated by RT-PCR and immunohistochemistry.An IUGR animal model was established by maternal nutrition restriction during pregnancy.IRS-2 expression level of liver tissue and IRS-1 expression level of skeletal muscle in IUGR rats at 0 and 3 weeks old were significantly lower than those in normal rats at the same age respectively,and insulin resistance was induced in IUGR,and these findings might be the molecular mechanisms susceptible to metabolic syndrome in IUGR rats.
9.Poly-peptide immunogenicity of human thyroid-stimulating hormone receptor that may cause Graves' disease
Shuwen QIN ; Ying SHI ; Hui WANG
Basic & Clinical Medicine 2006;0(12):-
DQA1*0501.TSHR peptides of 183~198、195~210、248~263、301~320、343~362 and 357~376 could bind with high affinity to both HLA-DR3 and HLA-DQA1*0501,all of their IC50 values less than(1 ?mol/L),but they could bind to neither HLA-DR7 nor HLA-DQA1*0201 with high affinity.Conclusion Epitopes of TSHR 183~198,195~210,248~263,301~320,343~362 and 357~376 on the TSHR extracellular domain might be the auto-antigens to cause GD.
10.Observation on the effect of clostridium butyricum powder in treating infantile indigestion diarrhea
Ying LIU ; Shuhui PANG ; Qin FENG
Chinese Journal of Biochemical Pharmaceutics 2017;37(5):90-92
Objective To investigate the clinical effect of Clostridium butyricum powder in treating infantile indigestion diarrhea.MethodsFrom February 2013 to October 2015 in our hospital 76 cases of pediatric indigestion diarrhea as the research object, randomly divided into experimental group and control group with 38 cases in each group, two groups were given Bao,er ning granule, combined group plus live bacteria powder for the treatment of Clostridium butyricum, three days for a course of treatment, continuous treatment of two courses.ResultsBefore treatment, there was no significant difference in clinical symptom scores between the experimental group and the control group,after treatment,the scores of loss of appetite, abdominal pain, diarrhea, abdominal distension and stool of the experimental group were lower than those of the control group, the difference was statistically significant (P<0.05);Before treatment, there was no significant difference in serum motilin, gastrin and somatostatin levels between the experimental group and the control group.After treatment, the levels of serum motilin and gastrin in the experimental group were lower than those in the control group, and the level of serum somatostatin was higher than that of the control group, the difference was statistically significant (P<0.05);After treatment, the total effective rate of experimental group was 92.11% higher than that of control group 73.68%, the difference was statistically significant (P<0.05).ConclusionClostridium butyricum powder with Bao,er ning granule in the treatment of infantile dyspeptic diarrhea effect is good, worthy of clinical application.