Dissent and Disputes ; Humans ; Occupational Diseases ; diagnosis

AIM: To observe the therapy effect of standard prescription on ametrop amblyopia in hyperopic children.
METHODS: This study included 270 cases ( 54 eyes ) with complete data, and followed up 24mo. All the amblyopic children were given standard prescription and were divided into progressive addition glass group, under corrected group and full corrected group. And all were observed for their therapy effect and the average healing time in low hyperopic, moderate hyperopic and high hyperopic children with ametropic amblyopia respectively.
RESULTS: In low hyperopic children, the difference of the therapy effect of the three corrected methods were insignificant in two years. The meam cure time of the three corrected methods were ( 7. 33 ± 2. 11 ) mo in progressive addition glass group;(9. 0±3. 71)mo in under corrected grope;(12. 5±5. 17) mo in full corrected group. Three groups of independent samples by paired t-test showed: the difference between progressive addition glass group and under corrected grope (t=1. 66, P>0. 05) was statistically insignificant; the difference between progressive addition glass group and full corrected grope ( t = 3. 92, P < 0. 01 ) was statistically significant; the difference between under corrected grope and full corrected grope ( t = 2. 33, P < 0. 05 ) was statistically significant. In moderate hyperopic chileren, the differences of the therapy effect of the three corrected methods were significant in two years (χ2=6. 75;P<0. 05). The difference between progressive addition glass group and under corrected grope (χ2 = 6. 3; P < 0. 01 ) was statistically significant; the difference between progressive addition glass group and full corrected grope (χ2=8. 1;P<0. 005) was statistically significant. The mean cure time of the three corrected methods were ( 14. 0±4-87) mo in progressive addition glass group; ( 16. 93±4-58)mo in under corrected grope; (17. 93±4. 42) mo in full corrected group. Three groups of independent samples by paired t-test showed: the difference between progressive addition glass group and under corrected grope (t=2. 88, P<0. 01) was statistically significant; the difference between progressive addition glass group and full corrected grope ( t= 3. 9, P<0. 01 ) was statistically significant;the difference between under corrected grope and full corrected grope ( t = 1. 01, P > 0. 05 ) was statistically insignificant. In high hyperopic amblyopic children, the difference of the therapy effect and the healing time of the three corrected methods were insignificant in two years. (χ2=2. 43, P>0. 05. t=1. 49, P>0. 05;t=1. 46,P>0. 05;t=1. 11, P>0. 05).
CONCLUSION:Under standard prescription, application of progressive multifocal glasses provides a new effective treatment for ametropic amblyopia in hyperopic children, and makes up the deficiency of the whole straightening and under correction in clinical treatment.

0.05).The height and weight of the children with good balancing function were weightier and higher than those of poor function children(Pa

Abstract: Objective 　To investigate the population densities composition and seasonal change of mosquitoes, and resistance of Culex pipiens quinquefasciatus and Aedes albopictus several commonly used insecticides in Zigong, so as to provide a theoretical basis for guiding the scientific rational selection and use of chemical insecticides, as well as the prevention and control of mosquito-borne diseases. Methods　The surveillance data on mosquitoes by traps were collected from 2018 to 2020 in Zigong. The wild Culex pipiens quinquefasciatus and Aedes albopictus were collected throughout the city and reared to F1 generation in lab. The resistance of adult Culex pipiens quinquefasciatus and Aedes albopictus to these commonly insecticides was detected by contact tube method recommended. The statistical analysis on the monitoring results was used by Excel 2010. Results　The annual average mosquito densities of monitoring sites were 1.11, 10.71, and 4.81 mosquitoes/(lamp·h), respectively from 2018 to 2020. The seasonal density of mosquitoes showed a single peak curve distribution throughout the year from 2018 to 2020 in Zigong, with the highest in July. There were obvious differences in mosquito density between different habitats, with the highest density of mosquitoes in barn. The 24 h mortality of Aedes albopictus and Culex pipiens quinquefasciatus to beta-cypermethrin, lambda-cyhalothrin, deltamethrin, permethrin, malathion, fenitrothion, chlorpyrifos, propoxur, and bendiocarb were 70.71% and 3.85%, 26.53% and 1.68%, 19.79% and 1.94%, 40.80% and 0.81%, 97.98% and 3.85%, 100.00% and 7.52%, 100.00% and 66.34%, 96.15% and 33.60%, 100.00% and 71.43%, respectively. The adult Aedes albopictus larvae in Zigong was sensitive to fenitrothion, chlorpyrifos, bendiocarb, showed resistance to beta-cypermethrin, lambda-cyhalothrin, deltamethrin, permethrin, and showed resistance dubiously to malathion and propoxur. The adult Culex pipiens quinquefasciatus larvae in Zigong have developed certain resistance to these commonly insecticides. Conclusion　Both Culex pipiens quinquefasciatus and Aedes albopictus had high resistance to pyrethroid insecticides, which suggested that we should strengthen the patriotic hygiene campaigns, reduce pyrethroid insecticides, use alternately different types of insecticides for delay the development of resistance and better mosquito prevention and control.

Objective To observe the effect of transplanting the adipose-dervived stem cells(ADSCs) on free radical metabolism and immune function of rat aging model induced by D-galactose from fasiaology perspective;to explore a new method for anti-aging. Methods The ADSCs were cultured in vitro. Thirty male SD rats were randomly divided into 3 groups: normal control group(A), aging model group(B) and treat group(C). Ten rats in each group. Rats in B and C groups were injected D-galactose continually into make the sub-acute aging model rats.After 8-week injections of D-galactose;R3ats in group C were injected ADSCs(3×10~6/ml) through caudal vein. After 2-week transplantions of ADSCs, T-SOD, CuZn-SOD, MDA, NO, IL-2 and spleen index levels in serums of each group were detected and compared among the three groups. Results Compared with the A group, the SOD, NO, IL-2 level and spleen index in serum in group B decreased significantly, while the contents of MDA increased significantly. Compared with group B, the SOD, NO, IL-2 level and spleen index in serum in group C had been improved, and the contents of MDA decreased significantly. Conclusion Transplanting ADSCs can improve the antioxidant ability and strengthen the cellular immune function of aging rats.Further more, it can delay the ageing procedure induced by D-galactose in rats.

Cancer is a group of various diseases, all of which involve unregulated cell growth. Many currently used chemotherapeutic drugs are derived from botanicals. Thus, searching botanical sources for novel oncology medications, including identifying the lead compounds and their derivatives for chemoprevention, is an essential step in advancing cancer therapeutics. This article mainly focuses on the data from our previous American ginseng anti-colon cancer studies. In addition to the potential role of American ginseng on cancer, the herb as an adjuvant for cancer treatment is presented, including describing the attenuation of adverse events induced by chemotherapeutic agents and increasing of quality of cancer patient life. Since heat-treated American ginseng and ginsenoside gut microbiome metabolites showed significant increases in cancer chemopreventive effects, active constituents of the steamed herb and their gut metabolites should be clearly identified, and the structure-activity relationship should be further explored. Data obtained from herbal medicine studies and clinical trials will help develop useful anticancer agents.
Animals ; Antineoplastic Agents, Phytogenic ; isolation & purification ; pharmacology ; Apoptosis ; drug effects ; Cell Proliferation ; drug effects ; Colorectal Neoplasms ; drug therapy ; pathology ; Ginsenosides ; isolation & purification ; metabolism ; pharmacology ; therapeutic use ; Hot Temperature ; Humans ; Panax ; chemistry ; Phytotherapy ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Structure-Activity Relationship

OBJECTIVE Hypericin, a powerful naturally photosensitizer in photodynamic therapy (PDT), is suitable for treating skin diseases involving excess capillary proliferation. In the present study, we aimed to evaluate the skin penetrability of a topically applied hypericin, expecting reducing the risk of prolonged skin photosensitivity, which often occurs after systemic administration. METHODS The Franz diffusion cell assay was performed to evaluate different penetration enhancers. In vivo studies, fluorescence microscopy was performed to examine the distribution of hypericin in the skin, macroscopic and microscopic analyses were also carried out to detect pathological changes in the skin after topical hypericin-PDT treatment. Immunohistochemistry was used to determine the expression of PECAM-1 in the treated skin. RESULTS 5% menthol facilitated hypericin penetrate the skin of nude mice most. The results of in vivo assays revealed that hypericin penetrated nude mice skin, spread to the dermis, and resulted in obvious photosensitivity reaction on the dermal capillaries. Moreover, skin injured by the photosensitive reaction induced by hypericin was replaced by normal skin 7 d after hypericin-PDT treat?ment. CONCLUSION Topical hypericin could penetrate nude mouse skin well and be great potential in PDT treatment of skin diseases.

Objective To investigate the prevalence of diabetic foot(DF) in the hospitalized diabetic patients and analyze the clinical characteristics and therapeutic efficacy of patients with diabetic foot. Methods The 313 patients (180 males and 133 females) were divided into two groups：group A (1/1996-12/2003) and group B (1/2004-12/2006). Results 2.79% of the hospitalized diabetic patients had diabetic foot. The mean age and duration of diabetes were 66±10 years old and 9.33±6.52 years respectively, the mean duration of diabetic foot was 8.13±17.06 months and the average days in hospital was 29.62±28.36d. Many patients suffered from diabetic nephropathy, cataracts, retinopathy, neuropathy, vascular disease, hypertension, infection, and so on. The blood pressure and blood glucose were poorly controlled in many of the patients. Of all patients, 28.1% were completely healed, 40.6% were improved without amputation and 31.3% had not healed at the time of death or follow-up (including 9.3 % of them were amputated in leg and 6.2% were dead). But group B versus group A showed higher cure rates of DF (37.04 % vs 18.54 %). Conclusions The prevalence of DF in the hospitalized diabetic patients is gradually increased, most patients with DF accompany with one or multiple other complications. A multifactorial treatment by a multidisciplinary foot care team is a superior treatment strategy for improving prognosis of patients with DF.

The article introduces a new method for three-dimensional reproduction of edentulous dental casts, and wax occlusion rims with jaw relation by using a commercial high-speed line laser scanner and reverse engineering software and evaluates the method's accuracy in vitro. The method comprises three main steps: (i) acquisition of the three-dimensional stereolithography data of maxillary and mandibular edentulous dental casts and wax occlusion rims; (ii) acquisition of the three-dimensional stereolithography data of jaw relations; and (iii) registration of these data with the reverse engineering software and completing reconstruction. To evaluate the accuracy of this method, dental casts and wax occlusion rims of 10 edentulous patients were used. The lengths of eight lines between common anatomic landmarks were measured directly on the casts and occlusion rims by using a vernier caliper and on the three-dimensional computerized images by using the software measurement tool. The direct data were considered as the true values. The paired-samples t-test was used for statistical analysis. The mean differences between the direct and the computerized measurements were mostly less than 0.04 mm and were not significant (P>0.05). Statistical significance among 10 patients was assessed using one-way analysis of variance (P<0.05). The result showed that the 10 patients were considered statistically no significant. Therefore, accurate three-dimensional reproduction of the edentulous dental casts, wax occlusion rims, and jaw relations was achieved. The proposed method enables the visualization of occlusion from different views and would help to meet the demand for the computer-aided design of removable complete dentures.
Analysis of Variance ; Computer-Aided Design ; Dental Models ; Denture Design ; Denture, Complete ; Dimensional Measurement Accuracy ; Humans ; Imaging, Three-Dimensional ; methods ; Jaw Relation Record ; Lasers ; Mouth, Edentulous ; rehabilitation ; Waxes

Objective To understand the status of drinking-water supply and the progress of waterimproving projects in drinking-water-borne endemic fluorosis areas in Henan,and to provide scientific data for related government departments to carry out prevention and surveillance plan for those areas.Methods Questionnaire survey was carried out in all the villages in drinking-water-borne endemic fluorosis areas in Henan in 2010.Each village was given one set of questionnaire.Results By the end of 2010,the total number of fluorosis villages in Henan was 25 434,among them 11 484 villages had been conducted water-improving projects,accounting for 45.15％.Currently,9267 water-improving projects worked properly,accounting for 36.4％(9267/25 434)of all villages surveyed,and 80.7％ (9267/11 484)villages had water-improving projects.The projects in 2217 villages do not work properly,accounting for 19.3％(2217/11 484) of all projects.There were 5832 water-imp.roving projects conducted amnog 2005-2010,accounting for 50.8％ (5832/11 484) of all water-improving projects.Among villages with no such projects,97.5％(15 769/16 167) of them used shallow groundwater,and in villages with water-improving projects,89.6％ (8303/9267) of them used deep groundwater as drinking-water supply.Conclusions After 2005,the water improving progress was significantly speed up in drinking-water-borne endemic fluorosis areas in Henan,but progress of the water improving projects is relatively slow due to changing and expanding of fluorosis areas.The government should increase investment and improve the proportion of waterimproving defluoridation.