The development and implementation of antiretroviral therapy (ART) has transformed human immunodeficiency virus (HIV) infection into a controllable chronic condition. HIV infection can cause potential cardiovascular complications and increase the risk of cardiovascular disease along with myocardial infarction, stroke, peripheral arterial disease, sudden cardiac death, and heart failure. However, the pathogenesis of atherosclerosis in the setting of HIV infection is complex and unclear. In this review, we discuss the mechanisms of HIV-associated atherosclerotic cardiovascular disease, including the effects of the viral proteins on immune and vascular cells, the immunodeficiency caused by the HIV infection, co-infection with cytomegalovirus (CMV), microbial translocation, chronic inflammation and immune activation, and a few ART-related mechanisms.

Objective To investigate the expression changes of astrocytic syntrophin in hippocampus from human mesial temporal lobe epilepsy (MTLE). Methods From April, 2015 to July, 2016, 17 cases of hippocampus, collected from temporal lobectomy, were divided into MTLE group (n=13) and non-MTLE group (n=4) according to hematoxylin and eosin staining, glial fibrillary acidic protein and neuronal nu-clei immunohistochemical staining. Immunofluorescence double labeling and immunofluorescence histochemistry were used to observe the expression of syntrophin. Results The proliferation of astrocytes increased and neurons reduced in the hippocampus of MTLE group. Syntro-phin was found in the membrane and foot processes of astrocyte, that was enriched along perivascular astrocyte end-feet domain in non-MTLE group, but lost in MTLE group. While the whole expression of syntrophin was more in MTLE group than in non-MTLE group (t=5.421, P<0.001). Conclusion The distribution of syntrophin in hippocampus astrocytes may be related to the development of MTLE.

Objective To investigate the effects of nutritional treatment in patients with AIDS.Methods A total of 104 HIV/AIDS patients with a total score of nutritional risk screening≥3 were divided into two groups:observation group (n =50) who were treated with nutritional therapy,control group(n =54) who refused nutritional treatment.The changes of parameters in two groups were observed before(I0) and 1 month after (I1)treatment and 3 months after treatment (I2).Results Compare with thecontrol group,the weight,BMI and ALB in observation group were higher at the time of I1 and I2 (P＜0.05);Except for Hb and ALB,the other indexes had significant difference between the time of I0,I1,I2 in control group.While all the indexes had significant differencebetween the time of I0,I1,I2 in observation group.Conclusion Long-term comprehensive nutritional therapy can improve the nutritional status of AIDS patients,which provides patients with a good basis for anti-viral treatment.

Objective To explore the expression of aquaporin 4 (AQP4) in primary and secondary cultured rat astrocytes. Methods Rat cortical astrocytes from a newborn (one day) Wistar rat were cultured. Astrocytes were identified with immunofluorescence staining of glial fibrilillary acidic protein (GFAP). The expression of AQP4 was determined with real-time quantitative polymerase chain reaction and immu-nofluorescence staining three, five, seven and nine days of primary culture, and nine days of secondary culture. Results The purity of GFAP-positive cells was more than 95％. The expression of AQP4 mRNA was found three days of primary culture, remained unchanged five days of primary culture (P>0.05), and increased seven and nine days of primary culture (P<0.05). The expression of AQP4 mRNA was not different between nine days of primary culture and nine days of secondary culture (P>0.05). AQP4 immunofluorescence staining showed the same trend of AQP4 mRNA. Conclusion AQP4 may express since three days of primary culture in rat astrocytes in vitro, and increase slowly until nine days of primary culture.

Objective To compare the differences between the cell swelling of cultured astrocytes ( AST) from Wistar and Sprague-Dawley ( SD) rats after incubation with glutamate.Methods Primary cultured AST derived from the cerebral cortex of one-day-old Wistar or SD rats were prepared.The cultured AST received 1 or 10 mmol/L glutamate treat-ment for 48 h on the tenth day after subculture.The viability of AST was determined by lactate dehydrogenase ( LDH) kit to assess the cell injury, and the perimeter of AST was measured using Image Pro Plus software after glial fibrillary acidic protein immunofluorescence staining to evaluate the astrocyte swelling.Then, the expression of aquaporin 4 ( AQP4 ) in cultured AST was detected by quantitative reverse transcription polymerase chain reaction.Results No significant differ-ence was found in the LDH release after the glutamate treatment in cultured AST from these two strains (P>0.05).The perimeter of AST from normal Wistar rats was shorter than that from SD rats, but was longer after the treatment of glutamate (P<0.05).Meanwhile, AQP4 expression in the Wistar rats was significantly higher than that from SD rats after incuba-tion with 1 mmol/L glutamate ( P<0.05 ) .Conclusions These results suggeste that cultured AST from Wistar rats are more susceptible to glutamate-induced swelling than that from SD rats, and there are differences between the effects of glu-tamate on AQP4 expression in astrocytes of Wistar and SD rats.

Objective To investigate the protective effect of methylene blue (MB) on blood-brain barrier (BBB) injury after focal cere-bral ischemia-reperfusion in rats. Methods 18 male Sprague-Dawley rats were randomly divided into sham-operated group (n=6), model group (n=6) and MB treatment group (n=6). The left middle cerebral arteries were occluded for 1 hour and reperfused. MB was infused intra-venously immediately after reperfusion (3 mg/kg) and again 2 hours post-reperfusion (1.5 mg/kg), while normal saline was administered in the model group. The sham-operated group was treated as same as the model group without occlusion and infusion. HE staining was used to observe the histological injury in the cortex around the infarcted region 47 hours after reperfusion, while albumin immunohistochemistry was used to evaluate the permeability of the BBB, and immunohistochemistry and double immunofluorescence staining were used to exam-ine the expressions of glial fibrillary acidic protein (GFAP) and aquaporin-4 (AQP-4). Results HE staining showed that cells and blood ves-sels were not intact in the cortex around the infarcted region in the model group and they were better in the MB treatment group. The expres-sions of the albumin, GFAP and AQP-4 were higher in the model group than in the sham-operated group (P<0.01), and were lower in MB treatment group than in the model group (P<0.05). The double immunofluorescence staining showed the colocalization of GFAP and AQP-4 in the astrocytes. Conclusion MB may ameliorate the BBB disruption induced by focal cerebral ischemia-reperfusion through reducing glio-cyte proliferation and down-regulation of AQP-4 expression in rats.

Objective To investigate the cause of gynecological misdiagnosis in small intestinal stromal tumor and operation principle,treatment protocol.Methods Gynecological misdiagnosis in 4 female patients with small intestinal stromal tumor admitted were retrospectively analyzed.Results Four patients had abdominal ultrasound examination,1 patient was misdiagnosed as hysteromyoma,3 patients were misdiagnosed as ovarian tumor.All patients without further abdominal CT or MRI examination,operated by gynecology first and then treated by general surgery.All of 4 patients were confirmed with small intestinal stromal tumor by pathology.Conclusions For patients who are considered with hysteromyoma or ovarian tumor have melena must be identified with small intestinal stromal tumor.Further CT examination is valuable and can reduce misdiagnosis.Operation principle and oral imatinib mesylate after operation must be insisted.

OBJECTIVE: To observe and analyze the function and morphology of pharyngeal ostium of the eustachian tubes in secretory otitis media and chronic rhinosinusitis in children under direct vision,in order to provide an objective basis for clinical treatments. METHOD: Fifty cases of secretory otitis media,50 cases of chronic rhinosinusitis and a control group of 50 cases with hoarseness were examined under video laryngoscope to observe the pharyngeal ostium morphological changes of the eustachian tubes, and their functional statuses were tested by using acoustic impedance instrument. All the data were analyzed by statistical methods. RESULT: (1) In the secretory otitis group, the abnomal rate of the pharyngeal ostium of the eustachian tubes was 94% while the chronic rhinosinusitis group was 80%,and between them there was no significant differences (P > 0.05). But both of them had significant differences with the control group (P < 0.05). (2) In the secretory otitis group, the rate of the eustachian tube dysfunction was 70% while the chronic rhinosinusitis group was 26%, and between them there was significant differences (P < 0.05), and both of them have significant differences when compared with the control group (P < 0.05). CONCLUSION There are some abnormal points exist in the function and the morphology of the eustachian tube in secretory otitis media and chronic rhinosinusitis in children. Eustachian tube dysfunction played a dominant role in the pathogenesis of secretory otitis media in children rather than the morphological change did compared to the chronic rhinosinusitis in children.
Case-Control Studies ; Child ; Chronic Disease ; Eustachian Tube ; pathology ; physiopathology ; Humans ; Otitis Media with Effusion ; pathology ; physiopathology ; Rhinitis ; pathology ; physiopathology ; Sinusitis ; pathology ; physiopathology

OBJECTIVE: To study the effectiveness of tympanoplasty for treatment of chronic otitis media and cholesteatoma in children. METHOD: Twenty-three cases with chronic otitis media and cholesteatoma treated by tympanoplasty were retrospectively studied, among which 15 cases had complete clinical data. The condition of surgical cavities, the duration of getting dry ears, the hearing improvements, the growth of new ear drums and whether the recurrence of cholesteatomas occurred or not were observed. RESULTS: In all patients, the chief complains were ear discharging and hearing loss. The tympanum membranes(pars flaccid or pars tensa) became retracted or perforated and CT scan showed mastoid processes were poor developed in some cases with lesions mainly located at attic, middle tympanum cavity and/or petrous parts. The duration of getting dry ear was (6.0 +/- 1.5) weeks after surgery. The effective rate was 80%. The hearing of 12 cases has been improved, that of 2 cases has no changed, that of 1 case has been descended, and 1 case exhibited recurrent cholesteatoma after surgery. CONCLUSION This study demonstrated that children's chronic otitis media and cholesteatoma have their own clinic features of wide erosiveness and strong aggressiveness, and tympanoplasty has been proved to treat this disease effectively, also been proved to improve these patients' hearing cognitions and eventually improve their life qualities.
Adolescent ; Child ; Child, Preschool ; Cholesteatoma, Middle Ear ; surgery ; Chronic Disease ; Female ; Humans ; Male ; Otitis Media ; surgery ; Retrospective Studies ; Treatment Outcome ; Tympanoplasty

OBJECTIVE: To investigate the value of CT and MRI in diagnosing the children with sensorineural hearing loss. METHOD: Ninety-six cases suspected as severe sensorineural hearing loss were examined by CT/MRI system and 3D reconstruction. RESULT: Of 96 cases, 15 cases were found malformation these malformation included Michel, cochlear hypoplasia, commun cavity, Mondini, inner canal straitness, cochlear nerve undeveloped and vestibular aqueduct enlargements. CONCLUSION There are 15.63% inner ear malformation occurred in sensorineural hearing loss children. CT and MRI of inner ear have a great clinical value in diagnosing children sensorineural hearing loss by learning the anatomy.
Child ; Child, Preschool ; Hearing Loss, Sensorineural ; diagnosis ; diagnostic imaging ; Humans ; Infant ; Magnetic Resonance Imaging ; Tomography, X-Ray Computed