AlM:To investigate biological measurement parameters of anterior segment in acute angle- closure glaucoma ( AACG) .METHODS:Forty-six eyes of 46 patients with AACG and 52 eyes of 52 patients with shallow anterior chamber and 50 eyes of 50 normal individuals were examined. The parameters of anterior segment including chamber crowd rate (CCR), lens thickness (LT), lens position (LP) and anterior chamber depth ( ACD ) were measured by A-ultrasound according to different ages in each group. The data were performed statistical analysis in three groups.RESULTS: ln each age range group (≥50 ~ 59 years old, ≥60 ~ 69 years old, ≥70 years old ) , statistically significant differences in three groups ( AACG, shallow anterior chamber group and the controls ) were found in CCR, LT, LP, ACD (P<0. 01). There were statistically significant differences only in CCR (P<0. 01) but not in LT, LP and ACD ( P > 0. 05 ) between AACG and shallow anterior chamber group in each age range group.CONCLUSlON: CCR can be used as the index of evaluating crowding state of anterior segment in AACG patients and the sensitivity is better than LT and LP.

Trichosanthes kirilowii has been widely cultivated as its medicinal use, health care and food value. Drought resistance of seedlings is an important feature in breeding. Seeds of two T. kirilowii strains were used to research the difference of surface ultrastructure characteristic and drought resistance. Scanning electron microscope was used to identify the surface ultrastructure characteristic of seeds and PEG was used to simulate drought stress. The seeds germination rate, MDA content, chlorophyll content and the antioxidant enzymes activity were measured under the drought stress. The results showed that the seed surface colour of KXY-001 was lighter than that of KXY-005. The testa cobwebbing of KXY-001 was more intensive than that of KXY-005. The germination rate of KXY-001 was higher than that of KXY-005 under drought stress. The MDA content was increased and the chlorophyll content was decreased with the increasing of drought degree. The SOD activity of KXY-001 was higher than that of KXY-005, while the activity of POD and CAT was also increased firstly and decreased later. Surface reticulate of seeds and hilar traits can be used as identification points to identify the investigated strains. SOD and POD are activated to resist drought in T. kirilowii seedlings and the drought resistance of KXY-001 is superior than that of KXY-005.
Adaptation, Physiological ; drug effects ; Catalase ; metabolism ; Chlorophyll ; metabolism ; Droughts ; Germination ; Malondialdehyde ; metabolism ; Microscopy, Electron, Scanning ; Peroxidase ; metabolism ; Polyethylene Glycols ; pharmacology ; Seedlings ; metabolism ; Seeds ; growth & development ; metabolism ; ultrastructure ; Species Specificity ; Superoxide Dismutase ; metabolism ; Trichosanthes ; classification ; growth & development ; metabolism

OBJECTIVETo summarize the features and treatment of male infertility induced by autosomal dominant polycystic kidney disease (ADPKD), and compare the outcomes of intracytoplasmic sperm injection (ICSI) for infertile men with ADPKD and those with congenital bilateral absence of vas deferens (CBAVD).

METHODSWe retrospectively analyzed 21 cases of ADPKD-induced infertility, 15 treated by ICSI (group A), and another 164 cases of strictly matched CBAVD-induced infertility (group B). We compared the two groups in the couples' age, the number of ICSI oocytes, and the rates of fertilization, transferrable embryos, good embryos, embryos implanted, clinical pregnancy, biochemical pregnancy, early abortion, singleton and twins in the first cycle.

RESULTSAfter 28 cycles of ICSI, 10 of the 15 ADPKD-induced infertility patients achieved clinical pregnancy, including 7 cases of live birth, 1 case of spontaneous abortion, and 2 cases of pregnancy maintenance. No significant differences were observed between groups A and B in the couples' age, the wives' BMI, or the numbers of ICSI oocytes and embryos transplanted (P >0.05), nor in the rates of ICSI fertilization (72.64% vs 76.17%), transferrable embryos (51.28% vs 63.24%), quality embryos (38.46% vs 49.83%), embryo implantation (17.64% vs 38.50%), abortion (0 vs 9.23%), singleton (50% vs 81.54%) and twins (50% vs 18.46%). However, the rates of clinical pregnancy (13.33% vs 42.68%, P = 0.023 <0.05) and biochemical pregnancy (13.33% vs 39.63%, P = 0.032 <0.05) were significantly lower in group A than in B.

CONCLUSIONICSI is effective in the treatment of male infertility induced by either ADPKD or CBAVD, but the ADPKD cases have a lower success rate than the CBAVD cases in an individual cycle. The affected couples should be informed of the necessity of prenatal genetic diagnosis before embryo implantation and the inevitable vertical transmission of genetic problems to the offspring.

Abortion, Spontaneous ; Embryo Implantation ; Embryo Transfer ; Female ; Humans ; Infertility, Male ; therapy ; Male ; Male Urogenital Diseases ; therapy ; Oocytes ; Polycystic Kidney, Autosomal Dominant ; complications ; Pregnancy ; Retrospective Studies ; Sperm Injections, Intracytoplasmic ; Vas Deferens ; abnormalities

Objective To explore the impacts of different excipients on physical and chemical properties of Acteoside solid lipid nanoparticles (Acteoside-SLN),and make experimental evidence for the study of prescription SLN.Methods Emulsification-evaporation was appropriate for the preparation of Acteoside-SLN.Single variable method was used for fumbling the effects of Compritol 888 ATO,glyceryl monostearate,soy lecithin,Myrj52 and other accessories on the physicochemical properties including nanoparticles particle size,encapsulation efficiency and characterization dispersity (PDI) of Acteoside-SLN.Transmission electron microscope was used to observe the morphology of Acteoside-SLN and the structure of Acteoside in SLN was measured by XRD.Results With the increasing of the amount of Compritol 888 ATO,the particle size of nanoparticles decreased significantly,encapsulation efficiency decreased slightly,PDI increased;With the increasing of amount of glycerol monostearate,particle size increased obviously,encapsulation efficiency decreased slightly,and PDI decreased;With the increasing of the amount of lecithin,particles size increased significantly,encapsulation efficiency decreased,and PDI decreased;With the increasing of Myrj52 amount,the nanoparticles particle size decreased,encapsulation rate and PDI increased slightly.The appearance of Acteoside-SLN was presented uniform spherically.Acteoside was wrapped in SLN in a molecular dispersion state.Conclusion Various additives have a greater impact on physicochemical properties of Acteoside-SLN,and inspiration for prescription screening of SLN is supplied by this study.

Objective To evaluate whether bone marrow stromal cells (BMSCs) transplantation can improve the cognitive function of aged rats with vascular dementia. Methods Thirty rats were equally ramdomized into normal control group and 4 treatment groups; the 4 treatment groups received subcutaneous injection of D-galactose (D-gal) for 4 weeks; and then, two-vessel occlusion (2VO) was performed in 3 of the treatment groups; and 24 h after 2VO, D-gal+2VO+saline group and D-gal+2VO+BMSCs group were subjected to stereotactic injection of normal saline and BMSCs into the subventricular zone (SVZ), respectively. The cognitive function was examined by Morris water maze test 6 weeks after stereotactic injection; immunofluorescence staining was employed to observe the transplantation ratio of BMSCs to neurons. Results Increased times and distances during Morris water maze in rats of the D-gal+2VO group, D-gal+2VO+saline group and D-gal+2VO+BMSCs group were noted as compared with those in the controls, indicating that the cognitive function of rats in these 3 groups was obviously impaired; these rats had the characteristics of having vascular dementia.Transplanted BMSCs in the D-gal+2VO+BMSCs group distributed around the lateral ventricles, and acquired the phenotypes of neurons (2%) and astrocyte (1%) 6 weeks after the transplantation. In addition, compared with that in rats of the D-gal+2VO group and D-gal+2VO+saline group, the cognitive dysfunction of rats in the D-gal+2VO+BMSCs group was improved (needing less time and swimming shorter distance, no difference in speed of swimming). Conclusion The D-gal injection plus 2VO can result in cognitive dysfunction of rats, and the engrafted BMSCs may exhibit the beneficial effect on cognitive function.Neural function remolding caused by interaction between BMSCs and host brain may be responsible for the function improvement

OBJECTIVETo construct human-SCID chimeric mice through implantation of mononuclear cells from human cord blood and study the immunoreaction of SCID-Hu IC mice immunized with rAd5HPV16L1-E7 vaccine.

METHODS(1) Experiment groups were injected with the suspension of mononuclear cells from human cord blood through a tail vein; the control ones were injected with non serum RPMI 1640 medium. Eight weeks after implantation, blood was collected and human serum IgG level in the mice were tested, and human CD45, CD3 and CD19 were determined. (2) SCID-Hu IC mice were divided into two groups: in group A the mice were immunized intraperitoneally with rAd5HPV16L1-E7 virus and in group B the mice were immunized through nasal drip with rAd5HPV16L1-E7 virus. At the end of fourth week, the serum specific IgG antibody to rAd5HPV16L1-E7 virus, IFN-gamma in culture medium of spleen lymphocyte and T-lymphocyte propagation were tested.

RESULTS(1) In the experiment groups, the number of mice positive for human IgG was 10/15, the average values of CD45, CD3 and CD19 were (9.39+/-4.21), (3.25+/-3.99) and (1.69+/-0.75), respectively. In the control ones, the human IgG, CD45, CD3 and CD19 were negative. (2) The results in the experiment groups showed that the IFN-gamma and T-lymphocyte stimulated by HPV16 protein were higher than those in the non-stimulated group (P less than 0.05).

CONCLUSION(1) The results indicated that the construction of human-SCID chimaera through the implantation of mononuclear cells from human cord blood into SCID mice was successful. They also indicated that the reconstructed SCID-Hu IC mice has the ability to produce immune response against rAd5HPV16L1-E7 recombinant virus.

Adenoviridae ; genetics ; Animals ; Antigens, CD19 ; blood ; CD3 Complex ; blood ; Disease Models, Animal ; Female ; Fetal Blood ; transplantation ; Immunoglobulin G ; blood ; Interferon-gamma ; metabolism ; Leukocyte Common Antigens ; blood ; Male ; Mice ; Mice, SCID ; Oncogene Proteins, Fusion ; genetics ; immunology ; Oncogene Proteins, Viral ; genetics ; immunology ; Papillomaviridae ; genetics ; Recombination, Genetic ; T-Lymphocytes ; cytology ; Viral Vaccines ; immunology

OBJECTIVETo analyze the gene expression profile of degenerated cervical intervertebral disc of Sprague Dawley rats on a large scale.

METHODSDegenerated models of Sprague Dawley rats of 9 months old (degeneration group, n=9) and normal Sprague Dawley rats of 3 months old (control group, n=9) were prepared, respectively. mRNA was obtained from the cervical intervertebral disc of rats in both groups, respectively, and then labelled by Cy5 and Cy3 fluorescence respectively after reverse transcription to obtain intervertebral disc cDNA probes. cDNA probes were hybridized with BiostarR-40s gene expression profile chips and scanned by laser scanner. The results were treated with portrait analysis, standardization management, and ratio analysis with softwares.

RESULTSCompared with the rats in the control group, 9.6% (381 pieces in total) gene expression changed obviously in the rats in the degeneration group, among which, the gene expression quantities of 171 pieces increased significantly (r=the ratio of the degeneration group to the control group>2.0), 52 pieces of which had certain function. While the gene expression quantities of 211 pieces decreased significantly (r<0.5), 41 pieces of which had certain function.

CONCLUSIONSGene chip technology can be used to analyze the gene expression profile of degenerated intervertebral disc of rats in parallel, in quantity and on a large scale, which helps to testify the representative genes and protein expression, and plays an important role in clarifying the pathogenesis of degenerated intervertebral disc.

Animals ; Cervical Vertebrae ; pathology ; Disease Models, Animal ; Gene Expression Profiling ; In Situ Hybridization ; Intervertebral Disc ; pathology ; Intervertebral Disc Displacement ; genetics ; Male ; Oligonucleotide Array Sequence Analysis ; Rats ; Rats, Sprague-Dawley

Objective:To explore the application value of single source dual energy CT (DECT) scanning technique in improving the image quality of the pancreas.Methods:Imaging data of 21 patients with normal pancreas and 36 patients with pancreas related diseases in the First Affiliated Hospital of Naval Medical University from July 2021 to August 2021 were collected. All the patients first underwent multi-slice CT (MDCT) scan with no-contrast, and then dynamic enhanced MDCT scan. And the DECT scan was used in the delay period. Virtual single energy images (VMI, 40~100keV) of normal pancreas and mixed energy images of pancreatic lesions (PI, 80 and 140kVp) were obtained. The regions of interest (ROI) of fat on abdominal wall, normal pancreas and abdominal aorta were delineated, the CT values and standard deviation (SD) of each ROI were measured and recorded, and the pancreatic signal-to-noise ratio (SNR) and contrast-to-noise ratio (SNR) of each energy image were calculated. The objective index and subjective score of VMI(40-100keV) and PI (80kVp and 140kVp) with iodine (water) base map and VMI best CNR were compared between groups. The correlation between VMI(40-100keV) and PI(80, 140kVp) with iodine (water) base map and VMIbest CNR was analyzed by univariate regression.Results:In VMI(40-100keV) of normal pancreas, the highest SNR value was VMI best CNR and iodine (water) base map, and the highest CNR values were VMI 60keV and iodine (water) base map. There were significant differences on SNR and CNR values between different energy VMI and iodine (water) base map ( P<0.05). Among the four images of PI 80kVp, PI 140kVp, VMI best CNR and iodine (water) base map for pancreatic lesions, the SNR and CNR values of iodine (water) base map were the highest. The SNR and CNR values of VMI best CNR were higher than those of PI 80kVp, and the differences were statistically significant ( P<0.05). The lesion significance and edge sharpness score of iodine (water) base map was the highest, which was better than other groups; the lesion significance and edge sharpness score of VMI best CNR was better than PI 140kVp, and the differences were statistically significant ( P<0.05). The results of univariate regression analysis showed that the SNR values of PI 80kVp, PI 140kVp and VMI best CNR for pancreatic lesions were positively correlated with those of the iodine (water) base map ( P<0.05), the CNR values of PI 140kVp and VMI best CNR images were positively correlated with the iodine (water) base map ( P<0.05), and the SNR and CNR values of PI 140kVp were positively correlated with VMI best CNR ( P<0.05). Conclusions:VMI with different energy and iodine (water) base maps can be obtained by single source DECT enhanced scanning of pancreas related diseases. The VMI best CNR was the best among all VMIs, while the SNR and CNR values of iodine (water) base maps were the highest in all images. The VMI best CNR and iodine (water) base maps can improve the image quality of pancreas related diseases.

Carotid Artery, Internal/diagnostic imaging* ; Humans ; Oropharynx

Anxiety, depression, and even suicidal ideation are becoming the most common mental health problems affecting Chinese college students. The present study investigated the prevalence of mental health problems and their predictors in a sample of 1048 Chinese college freshmen from Shanghai. We used following brief screening instruments to measure symptoms of anxiety and depression, as well as self-control and suicidal ideation: the Patient Health Questionnaire (PHQ-9), the Generalized Anxiety Disorder scale (GAD-7), a mental health and mental health knowledge questionnaire (MK), a mental disease-related attitude questionnaire (MA), questionnaires about the knowledge of psychological services and utilities, the Mini International Neuropsychiatric Interview (MINI) Suicide module, the Self-Rated Health Measurement Scale (SFHMS), the Self-Esteem Scale (SES), the Simplified Coping Style Questionnaire (SCQ), and the Perceived Stress Scale-10 (PSS-10). Over half of the students suffered from at least one mental health problem. Approximately 65.55% of freshmen had depression, and 46.85% had anxiety. Minority status, low family income, and religious belief were significantly associated with current mental health problems. These findings indicate that mental disorders are highly prevalent among the freshman student population. The prevalence of such mental disorders was greater than that of the general population, and the majority of students with mental health problems require treatment.
Adult ; Anxiety ; epidemiology ; China ; epidemiology ; Depression ; epidemiology ; Female ; Humans ; Male ; Prevalence ; Risk Factors ; Young Adult