Adult ; Antibodies, Monoclonal, Murine-Derived ; administration & dosage ; therapeutic use ; Female ; Hemophilia A ; drug therapy ; Humans ; Rituximab

AIM: To observe the effect of ischemic preconditioning (IPC) on the subsequent permanent ischemic rat retina. METHODS: A model of two-vessel occlusion (2VO) was used to give an ischemic insult to rat retina. Bilateral carotid arteries were occluded directly in the simple ischemic groups. A procedure of double 2 min ischemia- 3 min reperfusion was applied to IPC groups before their carotid arteries were occluded. Experimental control groups received the same operation except that their exposed vessels were not occluded. Other 6 normal rats served as immunohistochemical controls. Eyeballs were taken out after being subjected to 1, 3 and 7 days of ischemia. The morphometry of retina was measured by stereologic methods. The apoptosis during the retinal ischemia was detected by TUNEL. Immunohistochemistry staining was used for the localization of bcl-2 in retina. RESULTS: In IPC groups, the thickness of retina was thinner than that in simple ischemic groups. The apoptosis was less when compared with the simple ischemic groups at the same ischemic time. The apoptotic cells show only in INL and the apoptosis of RGCs was not appeared until 7 days postischemia. There was no significant difference of the numerical density of RGCs at the different time after the operation. The bcl-2 immunoreactivity was weaker than that of the simple ischemic groups too. CONCLUSION: IPC reduced the injury caused by ischemia in retina, showing a protective effect.

Emergency Treatment ; Humans ; Male ; Middle Aged ; Multiple Organ Failure ; complications ; therapy ; Myocardial Infarction ; complications ; therapy ; Pancreatitis ; complications ; therapy ; Treatment Outcome

Heart ; drug effects ; Heart Failure ; drug therapy ; Humans ; Hydrogen Bonding ; Nitrogen Oxides ; pharmacology ; therapeutic use

AIM: To investigate the possible impact of conductive keratoplasty(CK)on intraocular pressure( IOP ).METHODS: 36 eyes of 20 patients with hyperopia underwent IOP measurement with non-contact tonometer (NCT), Goldmann applanation tonometer (GAT) and Schiotz tonometer before and after CK.RESULTS: After CK, a significant decrease was observed by NCT, GAT and Schiotz measurements. The change in IOP readings was not correlated with age, sex,keratometric readings, or attempted correction.CONCLUSION: The applanation tonometer atend to underestimate the true IOP after CK.

Objective To study the mechanism of spontaneous rupture of hepatocellular carcinoma(HCC).Methods Articles have been reviewed to find out the theory of spontaneous rupture of HCC.Results Researchful results suggested that the injury of small arteries was usually followed in patients of spontaneous rupture of HCC.In this review,the immune complex,which composed of hepatitis B virus e antigen,complement C1q and immunoglobulins,was found deposited in the elastic membrane of arteries.Likely as a result of immune complex deposition,vascular injury occurs mainly in the small arteries where the deposition of immune complex was present.The small arteries in which immune complex deposited are readily injuried and cause hemorrhage and rupture of HCC during vascular load increase. Conclusion We would conclude that immune complex deposition in vessel wall led to the small arteries injury may be the factor involved in the pathogenesis of spontaneous ruptured HCC.

Objective To study the effect of salmon calcitonin and physical therapy on lumbar spinal ste- nosis.Methods Eighty cases of lumbar spinal stenosis were divided into treatment and control groups.Physical therapy alone was given to the control group,but salmon calcitonin was injected intramuscularly in addition to phys- ical therapy for the patients in the treatment group.Visual analogue scale,range of motion (ROM),pain-free walking distance,tendon reflexes and functional independence measures (FIM) were observed to assess the re- sults.Results The VAS,ROM and walking distance of the treatment group improved more than those of the con- trol group,but the groups' tendon reflexes and FIM were similar.Conclusions Salmon caleitonin can reduce the symptoms of lumbar spinal stenosis,and it has special effects in relieving pain.

AIM: To investigate the effects and mechanisms of renin-angiotensin system (RAS) blockade on pancreatic islet β-cell function in rats with injection of streptozotocin (STZ) and long-term high-fat diet. METHODS: Normal male Wistar rats fed with 16 weeks-long high calorie, and high-fat diet were treated with telmisartan (TI, n=15), and injected with STZ after 24 weeks. One week later, islet function was evaluated by intravenous insulin releasing test (IVIRT). The immunoglobulin binding protein (BIP)/glucose-regulated protein (GRP78), C/EBP-homologous protein (CHOP)/growth arrest and DNA-damage-inducible gene 153 (GADD153) mRNA expression levels in the islets were detected by RT-PCR. The expression levels of insulin and Bax protein in the islets were examined by immunohistochemistry. RESULTS: The incidence of diabetes was 80%(12/15)in the high-fat diet+STZ group (HS) and 33% (5/15) in the high-fat diet+STZ+ telmisartan group (TS). Compared to HS group, maximum of insulin secretion in TS group was increased 56.9%. Early insulin secretion index (EISI) and acute insulin response (AIR) were increased by 1.98 times and 0.88 times, respectively. The expression of insulin and insulin positive cell density (PCD) were increased obviously in β-cells. The expression levels of BIP, CHOP and Bax in the islets were decreased significantly. CONCLUSION: Blockade of RAS increases the resistance to streptozotocin-induced diabetes in rats with long-term high-fat diet, and the expression of apoptosis-related molecules is downregulated in endoplasmic reticulum. The mechanism that RAS blockade improves pancreatic islets function and reduces diabetes incidence to some extent may be via attenuating endoplasmic reticulum stress.

eticulum stress.

The immunoregulation effect to polysaccharides from Bifidobacterium spp. was investigated on the base of functional assessment standards of health food. Effects of the EPS on immunity were investigated by promoted the proliferation of spleen lymph cells, delayed type hypersensitivity reaction, the HC50 value and macrophage function assay in mice. Data showed that the EPS could obviously increase the ratio of swallowed chicken red blood cell by macrophage and the HC50 value in mice. However, no significant effect was found on the delayed type hypersensitive induced by sheep red blood cell, for only the low dose of 100 mg/(kg?d) EPS promoted the proliferation of spleen lymph cells. Bifidobacterium spp. EPS can certain immunomodulating function.