The common, particular structure and the arrangement pattern of the retinula in the compound eye of the housefly Musca domestica have been investigated, and the structures of the retinula cells here been compared with an electron microscope under dark, bright and high intensity light adaptation condition.In general, the retinula of the compound eye is composed of eight retinula cells, but some retinula is composed of six, seven, or nine, ten retinula cells.The arrangement pattern of the retinula in the right, left compound eye and dorsal, ventral regions of the compound eye are the mirror image inversion. But the arrangement pattern of some retinula in the dorsal or ventral region is also the mirror image inversion.The greater part of pigment granules in the retinula cells No.1～6 move towards the rhabdomere, the pigment granules in the retinula cells No.7～8 do not move, but the pigment granules in the some retinula cells No.7～8 move towards the rhabdomere under high intensity light adaptation condition.

Objective To study the effects of combined telmisartan and ramiprll on heart function and renin - angiotensin - aldoste-tone system and ventricle remodeling and brain natriuretie peptide in patients with chronic heart failure (CHF). Methods 100 patientswith chronic heart failure were randomly divided into three groups: telmisartan group (A group, treated with telmisartan 80mg once daily, n =33), ramipril group (B group treated with ramipril 5mg once daily, n =33) and telmisartan plus ramipril group (treated with telmis-artan 40mg plus ramipril 2.5mg once daily, n = 34). Left ventricular end - diastolic dimensions (LVEDD) and left ventricular ejection fraction (LVEF) were assessed, and plasma renin activity (Ren) , angiotensinIl (Angll), aldosterone (Aid) and brain natriuretic pep-tide (BNP) were measured before and after therphy. Results After 6 months of treatment, LVEDD and LVEF were improved in all groups(P < 0.01). All changs were significant in C group than those in A group or B group(P < 0.01). The concentration of Ren were in-creased in all groups(P <0.01). The concentration of Angll was increased in A group and decreased in B group(P <0.01)while there was no difference at pre or post treatment in C group (P > 0.01). The concentration of Ald and BNP was decreased in all groups (P < 0.01). Ald and BNP were decreased more significantly in C group than those in A group or B group. Conclusion Combination of low dose of telmisartan and ramipril therapy has more benificial clinical features than telmisartan or ramipril alone in patients with CHF.

Objective To study the effects of combined telmisartan and ramipril on heart function and renin-angiotensin-aldosterone system and ventricle remodeling and brain natriuretic peptide in patients with chronic heart failure(CHF).Methods 100 patients with chronic heart failure were randomly divided into three groups: telmisartan group(A group,treated with telmisartan 80mg once daily,n=33),ramipril group(B group treated with ramipril 5mg once daily,n=33) and telmisartan plus ramipril group(treated with telmisartan 40mg plus ramipril 2.5mg once daily,n=34).Left ventricular end-diastolic dimensions(LVEDD) and left ventricular ejection fraction(LVEF) were assessed,and plasma renin activity(Ren),angiotensinII(AngII),aldosterone(Ald) and brain natriuretic peptide(BNP) were measured before and after therphy.Results After 6 months of treatment,LVEDD and LVEF were improved in all groups(P0.01).The concentration of Ald and BNP was decreased in all groups(P

1. The central retinular cells R_7 in the compound eye of male housefly can be divided into two types which are called here R_(7a) and R_(7b) respectively. R_(7a) approximate many features of R_(1-6) cells, which have a larger, cell body, rhabdomere and axon, terminate in the first optic neuropil (lamina). R_(7b) approximate many features of R_8 cell and project directly to the second optic neuropil (medulla). 2. The central retinular cell R_(7a) in the compound eye of male housefly distribute mainly the dorsal region of the eye, there are a few of R_(7a) in the ventral region of the eye, which only distribute in the first and second row ommatidia under equatorial line, but not found in the compound eye of female housefly.

Objective　To investigate radiographic features of pneumocystis carinii pneumonia(PCP)or Kaposi sarcoma(KS),which were the most common complications of AIDS after renal transplantation.Methods　Radiographic diagnosis and differential diagnosis of 2 cases with PCP and KS comfirmed by pathology were discussed by analysing the chest X-ray findings combined with revieuw of reference literature.Results　The two cases with anti-HIV antibody all had mediasinal lymphopathy.In the case of KS,the omental tuber or tubercle shadows and pleural effusion were found on both pulmonary fields.Conclusion　No characteristic chest radiographic meanifestations in AIDS,the definitive diagnosis depends on clinical laboratory examination and pathological examination.

AIM To explore the roles of vascular endothelial growth factor (VEGF) in hypoxia pulmonary hypertension and effects of suramin. METHODS Thirty SD rats were randomly divided into normal control group (N), hypoxia hypercapnia group(F), hypoxia hypercapnia +suramin group (S). The levels of VEGF in serum and in lung tissue were measured by ELISA, the ultrastructure of pulmonary arterioles was observed by electron microscopy, the expression of VEGF was observed by immunohistochemistry, the expression of VEGFmRNA was observed by in situ hybirdization. RESULTS ①Mean pulmonary arterial pressure(mPAP), weight ratio of RV to LV+S, the leves of VEGF in serum and in lung tissue of group F were significantly higher than that of group N and group S (P

Micro-and ultrastructure of the photoreceptors and first visual ganglion in the different regions of the compound eye of the wild male and female housefly, and the projections of the photoreceptor cells within the subsequent visual centers have been studied. The morphology of the retina and lamina ganglia in the front dorsal and the equatorial regions of the male compound eye and the front ventral region of the female one, and the projections of the retina within the lamina show the sexspecific characteristics underlying the function of chasing behavior in the housefly.

The changes of the ultrastructure of the photoreceptors in the compound eye of horsefly (Tabanus mandarinus) were observed electromicroscopically at both the mid-day and mid-night. We found that there were various structural changes in cones, pigment cells, retinula cells, rhabdomeres at the two different times.The functional significance of the day and night changes of the photoreceptors and their relations to natural light illumination were discussed.

Objective To observe the effects of hysteroscopic transcervical resection of endometrium combined with levonorgestrel-relea-sing intrauterine system in the treatment of adenomyosis. Methods Clinical data of 62 cases with adenomyosis from January 2009 to January 2011 were randomly divided into 2 groups with 31 cases each. The observation group was given hysteroscopic transcervical resection of endo-metrium ( TCRE) combined with levonorgestrel-releasing intrauterine system( LNG-IUS) ,the control group was given LNG-IUS. All patients were followed up in 0,1,3,6,12 months after treatmenting with LNG-IUS. The menstrual blood volume,score of VAS,volume of uterus, CA125 and the levels of serum reproductive hormone were analyzed before treatment and after treatment. Results After the therapy,the cur-ative effects of controlling menorrhea were improved and the the observation group was significantly better than the control group(P<0. 05). The VAS scores were significantly decreased after the therapy in the two groups, but there was no significant difference between the two groups (P<0. 05). The level of CA125 in the observation group was significantly lower than the pretherapy,which was better than that in the control group (P<0. 05). There was no significant difference between the two groups in the volume of uterus after treatment and the levels of serum FSH,LH,E2 and P(P>0. 05). Conclusion It is exact effect to treat adenomyosis by TCRE combined with LNG-IUS,which can prevent dripping bleeding induced by application of LNG-IUS effectively.

objective To observe the influence of hemodynamic changes caused by extracranial carotid stenosis on the plaque stability, and analyze the relationship of cerebral infarction classification,criminal artery stenosis degree and plaque stability to offer evidence for evalu-ating nosogenesis,clinical diagnosis,treatment and prevention of cerebral infarction. Methods CDFI,CTA were performed in 168 patients with acute cerebral infarction,some moderate and severe and occlusive carotid artery which were demonstrated by CTA and CDFI were further checked by DSA during convalescence. Totally 168 acute cerebral infarction patients were divided into 5 groups based on the criminal artery stenosis degree. To evaluate the plaque stability and flow field changes with CDFI and CTA,OCSP clinical classification and brain image clas-sification were finished according to CTA. Patients were classified into 4 subtypes,namely cortical infarction,basal ganglion infarction,corona radiata infarction and posterior infarction,according to the lesion distributions. Observe the changes of flow field and stability of plaque,and compare the relationship between different degree of stenosis and the classification of lesion of infarction. Results Among the 168 criminal arteries,there was 17. 9% of normal,22. 6% of mild stenosis,30. 9% of moderate stenosis,14. 8% of severe stenosis,and 14. 3% of occlu-sion,and the moderate stenosis proportion was the highest. When the stenosis degree was over 50%,it may lead to the changes of flow field, speeding up of blood flow,forming of turbulent flow,and increasing of plaque instability in which lipid plaque and admixture plaque was the highest. PACI is the commonest in all moderate groups. Admixture plaque is usually seen in severe stenosis and occlusion, while fibrous plaque is usually seen in mild stenosis. Conclusion Moderate carotid stenosis may lead to the increase of plaque instability as a result of the changes of flow field,and it may prone to artery-artery embolization.