This study was designed to investigate the effect of dihydromyricetin (DHM) on inducing apoptosis of ovarian cancer cells A2780 through endoplasmic reticulum stress (ERS) pathway and the mechanisms involved in vitro and in vivo. A2780 cells were treated with different concentrations of DHM, and the protein expression levels of glucose-regulated protein 78 (GRP78) which is related to ERS increased, apoptotic proteins C/EBP-homologous protein (CHOP), and cysteinyl aspartate specific proteinase-12 (caspase-12) elevated. After pretreatment with ERS inhibitor, 4-phenyl butyric acid (4-PBA), following the intervention with DHM, the A2780 cell viability decreased and apoptotic rate increased. All animal welfare and experimental procedures were approved by the Animal Ethics Committee of Chongqing Medical University. Intraperitoneal injection of DHM suspension into nude mice with ovarian cancer could significantly inhibit the growth of transplanted tumor in vivo, increase the protein expression levels of GRP78, CHOP, and caspase-3. Moreover, swollen and broken endoplasmic reticulum could be observed in tumor tissues, suggesting that DHM intervention induces apoptosis mediated by ERS. The results indicated that DHM could induce apoptosis of ovarian cancer cells and inhibit the growth of transplanted tumors in nude mice, which might be related to the activation of ERS pathway.

OBJECTIVE: To assess the effect of neutralizing CD96 on natural killer (NK) cell functions in mice with pulmonary infection and explore the possible mechanism. METHODS: Male BALB/c mice were randomly divided into infection group (Cm group), anti-CD96 treatment group (anti-CD96 group) and control group (=5). In the former two groups, was inoculated intranasal administration to establish mouse models of pulmonary infection, and the mice in the control group received intranasal administration of the inhalation buffer. In anti-CD96 group, the mice were injected with anti-CD96 antibody intraperitoneally at the dose of 250 μg every 3 days after the infection; the mice in Cm group received intraperitoneal injections of saline. The body weight of the mice was recorded daily. The mice were sacrificed 5 days after infection, and CD96 expression was detected by quantitative real-time PCR and Western blotting. HE staining and pathological scores were used to evaluate pneumonia of the mice. The inclusion body forming units (IFUs) were detected in the lung tissue homogenates to assess lung tissue chlamydia load. Flow cytometry and ELISA were used to assess the capacity of the lung NK cells to produce interferon-γ (IFN-γ) and regulate macrophages and Th1 cells. RESULTS: infection inhibited CD96 expression in NK cells of the mice. Compared with those in Cm group, the mice in antiCD96 mice showed significantly milder lung inflammation ( < 0.05) and reduced chlamydia load in the lung tissue ( < 0.05). Neutralizing CD96 with anti-CD96 significantly enhanced IFN-γ secretion by the NK cells ( < 0.05) and augmented the immunoregulatory effect of the NK cells shown by enhanced responses of the lung macrophages ( < 0.05) and Th1 cells ( < 0.05). CONCLUSIONS Inhibition of CD96 alleviates pneumonia in -infected mice possibly by enhancing IFN-γ secretion by NK cells and augmenting the immunoregulatory effect of the NK cells on innate and adaptive immunity.
Animals ; Antigens, CD ; metabolism ; Chlamydia Infections ; complications ; immunology ; physiopathology ; Chlamydia muridarum ; Interferon-gamma ; genetics ; metabolism ; Killer Cells, Natural ; metabolism ; Lung Injury ; etiology ; genetics ; prevention & control ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL

OBJECTIVE: To assess the effect of neutralizing CD96 on natural killer (NK) cell functions in mice with pulmonary infection and explore the possible mechanism. METHODS: Male BALB/c mice were randomly divided into infection group (Cm group), anti-CD96 treatment group (anti-CD96 group) and control group (=5). In the former two groups, was inoculated intranasal administration to establish mouse models of pulmonary infection, and the mice in the control group received intranasal administration of the inhalation buffer. In anti-CD96 group, the mice were injected with anti-CD96 antibody intraperitoneally at the dose of 250 μg every 3 days after the infection; the mice in Cm group received intraperitoneal injections of saline. The body weight of the mice was recorded daily. The mice were sacrificed 5 days after infection, and CD96 expression was detected by quantitative real-time PCR and Western blotting. HE staining and pathological scores were used to evaluate pneumonia of the mice. The inclusion body forming units (IFUs) were detected in the lung tissue homogenates to assess lung tissue chlamydia load. Flow cytometry and ELISA were used to assess the capacity of the lung NK cells to produce interferon-γ (IFN-γ) and regulate macrophages and Th1 cells. RESULTS: infection inhibited CD96 expression in NK cells of the mice. Compared with those in Cm group, the mice in antiCD96 mice showed significantly milder lung inflammation ( < 0.05) and reduced chlamydia load in the lung tissue ( < 0.05). Neutralizing CD96 with anti-CD96 significantly enhanced IFN-γ secretion by the NK cells ( < 0.05) and augmented the immunoregulatory effect of the NK cells shown by enhanced responses of the lung macrophages ( < 0.05) and Th1 cells ( < 0.05). CONCLUSIONS Inhibition of CD96 alleviates pneumonia in -infected mice possibly by enhancing IFN-γ secretion by NK cells and augmenting the immunoregulatory effect of the NK cells on innate and adaptive immunity.
Animals ; Antigens, CD ; Chlamydia Infections ; Chlamydia muridarum ; Interferon-gamma ; Killer Cells, Natural ; Lung Injury ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL

Antineoplastic Agents/therapeutic use* ; Dasatinib/therapeutic use* ; Humans ; Leukemia, Myeloid, Chronic-Phase/drug therapy* ; Prognosis ; Protein Kinase Inhibitors ; Treatment Outcome

Objective To investigate the diagnostic value of CT and MRI in struma ovarii (SO).Methods Imaging features of 9 cases with SO confirmed by pathology were analyzed retrospectively.9 patients underwent CT,3 cases underwent both CT and MRI, which were both pre-and post-contrast enhancement.The location,size,shape,margin,density or signal intensity of the lesion,as well as the enhancement patterns of the cystic wall and solid components were observed.Results 7 tumors were located in the right ovary and 2 in the left,with smooth margins and clear boundary.The diameters of the lesions were 5-1 5 cm.The tumors were round in 2 cases,oval round in 2 cases and irregular in 5 cases.9 tumors all appeared cystic-solid type,mainly muti-cystic.The cystic components showed heterogeneous density on CT,mostly low signal intensity on T1WI and high signal intensity on T2WI,few cystic components showed high signal intensity on both T1WI and T2WI.Calcifications were found in 3 cases and fat in 2 cases.The solid components showed slightly high density on plain CT scanning and enhanced markedly either on CT or MRI.6 cases were accompanied with hysteromyomas and 2 cases with ovarian embryoma in the contralateral ovary.Conclusion CT and MRI appearances of SO have a certain characteristic,often manifested as a unilateral adnexal cystic-solid mass and the solid components obviously enhancement,but the boundary is smooth and clear.CT and MRI have different advantages.

Objective To explore the manifestations and diagnostic value of CT and MRI in gynecological acute abdomen.Methods CT and MRI features of 45 patients with gynecological acute abdomen proved by surgery were reviewed,including 17 ectopic pregnancy,10 ovarian cyst rupture,6 pedicle torsion of ovarian tumors,9 tubo-ovarian abscess and pelvic inflammation and 3 uterine perforation.31 cases underwent CT examination,14 cases underwent MRI examination and 39 cases underwent non-enhancement and enhancement scanning.Results In the 17 ectopic pregnancy cases,cystic structure surrounded by a thick wall or heterogeneous mass located in adnexal area was found,with 10 cases showing increased number of peripheral vessels penetrating into tumors.In the 10 cases with rupture of ovarian cyst, thick capsule wall was incomplete and cystic cavities collapsed in 7 lesions.In the 6 cases with pedicle torsion of ovarian tumors,irregular thickening of tumor pedicle were found in 4 cases,ovarian enlargement with surrounding follicles arrayed as fruit platter were found in 2 cases.In the 9 cases with tubo-ovarian abscess and pelvic inflammation,honeycomb-shaped lesions and multilocular changes were found in 6 cases and fallopian tube expanded like sausages in 5 cases.3 cases with uterine perforation exhibited intrauterine gas and fluid.Uterus with overflowed gas was found in 2 cases.One case had the thin and incomplete uterine wall.Conclusion CT and MRI can be used to confirm the causes of gynecological acute abdomen,and to comprehensively display the anatomical structures and pathological changes of pelvic tissues and organs.Therefore,CT and MRI are effective supplement means for the clinical diagnosis of gynecological acute abdomen.

Objective To study the clinical application effects of nasal high flow humidification oxygen therapy in patients with chronic obstructive pulmonary disease (COPD). Methods A total of 98 COPD patients hospitalized in PLA 81 Hospital from January to December 2016 were included in the study using convenient sampling method. Patients were randomly divided into the observation group and the control group, 49 cases respectively. Patients in the observation group received nasal high flow humidification oxygen therapy, while patients in the control group used common humidification oxygen bottle. Respiratory function indexes and the mucus viscosity were measured and compared between two groups before and after the intervention. Results Before the intervention, there were no statistically significant differences in respiratory function indexes between two groups (P> 0.05). After the intervention, there were significant differences in the respiratory frequency, PaO2, PaCO2, SaO2, heart rate, Clinical Pulmonary Infection Score between two groups (P< 0.05). Before the intervention, no significant difference in the mucus viscosity was observed between two groups (P> 0.05); at 24 h and 72 h after the intervention, significant difference in the mucus viscosity was observed between two groups (P< 0.05). Conclusions Nasal high flow humidification oxygen therapy can improve the respiratory function and airway humidification of COPD patients when compared to normal humidification oxygen therapy. Thus, it is worthy of clinical promoting.

OBJECTIVE: To observe the effect of "Xingnao Kaiqiao" acupuncture(acupuncture technique for restoring consciousness) combined with hyperbaric oxygen in patients with hypoxic ischemic encephalopathy and assess its influence on blood rheology. METHODS: Forty patients with hypoxic ischemic encephalopathy were randomly divided into treatment group and control group with 20 cases in each group. The treatment group received "Xingnao Kaiqiao" acupuncture combined with hyperbaric oxygen, and the control group received hyperbaric oxygen only. The two groups of patients were treated once per day for 6 consecutive days, which consisted of one course of treatment, and the total treatment lasted for four courses. Before and after treatment, the patients underwent the mini mental state examination (MMSE) to evaluate cognitive function and the barthel index score for activities of daily living. The changes of whole blood viscosity, plasma viscosity, and erythrocyte aggregation index were determined. RESULTS: After treatment, both the treatment and control groups showed improvements in cognitive function，activities of daily living, and blood rheology compared with those before treatment (P<0.05). However, these improvements in the treatment group were significantly greater than those in the control group (P<0.05). CONCLUSIONS: Application of "Xingnao Kaiqiao" acupuncture combined with hyperbaric oxygen in patients with hypoxic ischemic encephalopathy can result in an integrated curative effect, a significant improvement in the blood rheology indexes, and promote the recovery of brain cells.

OBJECTIVETo observe the efficacy and safety of acupuncture therapy on moderate and severe allergic rhinitis via the comparison evaluation of western medicine.

METHODSSixty cases of moderate and severe allergic rhinitis were divided into an acupuncture group (30 cases) and a western medicine group (30 cases). In the acupuncture group, the main acupoints included Yingxiang (LI 20), Shangxing (GV 23), Fengchi (GB 20), Quchi (LI 11), Xuehai (SP 10), Feishu (BL 13), Geshu (BL 17), Pishu (BL 20), etc. The supplementary points were selected according to syndrome differentiation. In the western medicine group, budesonide nasal spray and cetirizine tablets were prescribed. All the cases were treated for 8 weeks in the two groups. Separately, before treatment, in 4 weeks and 8 weeks of treatment, the scores of clinical symptoms and physical signs were observed and the clinical efficacy and safety were compared between the two groups.

RESULTSIn 4 weeks and 8 weeks of treatment, the scores of symptoms such as sneezing, nasal discharge, nasal obstruction, nasal itching, eye itching and turbinate hypertrophy, the score of physical signs and total score were all reduced apparently as compared with those before treatment (all P<0. 05). The differences were not significant between the acupuncture group and the western medicine group (all P>0. 05). The total effective rates were 90. 0% (27/30) and 93. 4% (28/30) in the acupuncture group after 4 and 8 weeks of treatment, and were 76. 6% (23/30) and 80. 0% (24/30) in the western medicine group separately, without significant difference in comparison (all P>0. 05).

CONCLUSIONAcupuncture achieves the similar efficacy on moderate and severe allergic rhinitis as western medicine. It is the safe therapy and has no apparent adverse reactions.

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Rhinitis, Allergic ; physiopathology ; therapy ; Sneezing ; Treatment Outcome ; Young Adult

OBJECTIVETo investigate the Influence of risk factors that cause the phototoxic maculopathy by welding arc in occupational welders.

METHODSWe examined randomly a group of 86 male occupational welders 172 eyes from some local metal manufacturing enterprise from August 2010 to December 2013. The ophthalmologic examination which the participants underwent thorough including the best visual acuity, fundus examination by the supplementary lens, fundus photography, and the high definition optical coherence tomography (OCT) scan. All participants of this study underwent thorough the medicine examined by a specialist of occupational who prior to the OCT. All the subjects were divided into groups according to age, protection degrees , length of service, operating time . The incidences of phototoxic maculopathy were compared within groups. The subjects was divided randomly into the lutein group and the placebo group. The examination including the best visual acuity, serum lutein concentrations, macular pigmentoptical density (MPOD), Contrast and glare Sensitivity.

RESULTS(1) The total incidence of phototoxic maculopathy is 32.0%. (2) The incidences of phototoxic maculopathy in the strict protection group, the randomed protective group and the nonprofessional protection group were respectively 21.4%, 36.7%, 53.6%. The incidence in the strict protection group was lower than the other two groups, the incidence was the highest in the nonprofessional protection group, and the difference was statistically significant. (3) The longer length of service, and operating time , the more incidence of phototoxic maculopathy develop. (4) The lutein group prior to the placebo group at the best visual acuity, serum lutein concentrations, macular pigmentoptical density (MPOD), Contrast and glare Sensitivity.

CONCLUSIONThe risk factors of phototoxic maculopathy in male occupational welders are the length of service, operating time, protection degrees and the lutein assistantly. The incidence of phototoxic maculopathy occurs regardless of age.

Cross-Sectional Studies ; Humans ; Light ; adverse effects ; Lutein ; analysis ; Macula Lutea ; radiation effects ; Macular Pigment ; analysis ; Male ; Occupational Diseases ; epidemiology ; Occupational Exposure ; adverse effects ; Personal Protective Equipment ; Radiation Injuries ; Retinal Diseases ; Risk Factors ; Tomography, Optical Coherence ; Visual Acuity ; radiation effects ; Welding