Objective To explore the distribution of high-arsenic water in Shaanxi Province in order to provide theoretical basis for the control of arsenism.Methods The contents of arsenic of 4042 water sampled from 1898 nature villages in 12 counties were assessed using semi-quantitative reagent-knit,and the water samples of Shanyang County,the targeted area,was quantified using quantitative atomic fluorescent speemetry.Results The contents of arsenic of 6 water samples in 2 villages exceeded 0.05 mg/L,accounting for 0.15%(6/4042),were 0.46,0.53,0.63,0.69,0.74,1.53 mg/L,respestively,and located in Shanyang County.A crowd of 1146 exposed to hish asenic water.among whom 555 were children.Conclusions Arsenic in drink water in Shanyang County in Shaanxi Province is higher than the standard,to which a large number of people are exposed,water-improving and defluoridotion must be carried out as soon as possible,reduces harm of high arsenic.

Ptosis is one of the most common diseases in oculoplastics. Surgical treatment is the only way to correcting ptosis. Most of doctors paid special attention to surgical technique, rather than to some related issues of operation. Timing is crucial for ptosis surgery. Both cosmetic and function need to be considered for a success surgery, the evaluation of extraocular muscle disorder is impor- tant for surgical result and postoperative complications.

Objective To isolate cancer stem cells from human colon cancer cell line CW-2,and observe the biological characteristics.Methods The percentage of CD44＋EpCAM＋ cancer stem cells which were isolated by multi-combination method was evaluated by flow-cytometry.The biological characteristics of the stem cells were analyzed by cell cycle analysis,in vitro invasion assay and in vivo tumorigenicity assay.Results The percentage of CD44＋EpCAM＋ cancer stem cells was 89.57%,and their capabilities of generation,invasion,tumorigenicity were higher than non-cancer stem cells（P 0.05）.Conclusion CD44＋EpCAM＋ cancer stem cells showed low generation,high invasiveness,high tumorigenesis,and they could be isolated by multi-combination.

OBJECTIVETo observe the impacts of the acupoint catgut implantation on postpartum pain of uterine contraction with qi and blood deficiency.

METHODSOne hundred and ten primiparas of natural delivery differentiated as qi and blood deficiency pattern in TCM were selected as the subjects. They were randomized into an acupoint catgut implantation group (55 cases) and a routine nursing group (55 cases). In the acupoint catgut implantation group, the catgut was implanted in Zigong (EX-CA 1), Zusanli (ST 36), Sanyinjiao (SP 6), Pishu (BL 20) and Geshu (BL 17) in 6 h after delivery; additionally, the routine post-delivery nursing was adopted. In the routine nursing group, the routine post-delivery nursing was applied simply. Visual analogue scale (VAS) and the pain relief time of uterine contraction were compared in 24 h, 48 h, 72 h and 96 h after acupoint catgut implantation between the two groups.

RESULTSVAS Scores in 24 h, 48 h, 72 h and 96 h after acupoint catgut implantation in the acupoint catgut implantation group were lower apparently than those in the routine nursing group (3.31 +/- 0.39 vs 4.31 +/- 0.29, 1.86 +/- 0.29 vs 2.66 +/- 0.25, 0.89 +/- 0.21 vs 1.59 +/- 0.24, 0.35 +/- 0.10 vs 0.69 +/- 0.13, all P < 0.05). The pain relief was achieved in (72.06 +/- 6.83) h in the acupoint catgut implantation group and was (123.42 +/- 11.12) h in the routine nursing group. The pain relief in the acupoint catgut implantation group was achieved more quickly (P < 0.01).

CONCLUSIONThe intervention of acupoint catgut implantation in 6 h after natural delivery in primiparas prevents effectively postpartum pain of uterine contraction.

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Catgut ; utilization ; Female ; Humans ; Labor Pain ; therapy ; Pain ; prevention & control ; Postpartum Period ; physiology ; Pregnancy ; Qi ; Uterine Contraction ; Uterus ; physiopathology ; Young Adult

This Synthetic Meintenance Liquor contains all kinds of nutritive substance that subsist the bacterium, and can preserve the bacterium for nearly ten years by providing energy needed by metabolism. It is a favorable culture medium to preserve bacterum long.

Adenocarcinoma ; diagnostic imaging ; metabolism ; pathology ; surgery ; Carcinoembryonic Antigen ; metabolism ; Diagnosis, Differential ; Follow-Up Studies ; Humans ; Keratin-20 ; metabolism ; Male ; Microfilament Proteins ; metabolism ; Middle Aged ; Phosphopyruvate Hydratase ; metabolism ; Thymus Neoplasms ; diagnostic imaging ; metabolism ; pathology ; surgery ; Tomography, X-Ray Computed

Objective To investigate the value of cytokinesis-block micronuclei(CBMN)assay in estimation of the biological doses of the victims of radiation accident.Methods Samples of peripheral blood were collected from the 5 victims(Subjects 1-5)at 16 h after the radiation accident of Taiyuan,Shanxi Province.And the peripheral blood samples and bone marrow sample were collected from the victim No.1 at 23 and 24 h after the radiation.Eight days after the accident Subject 1 underwent allogeneic peripheral blood hematopoietic stem cell transplantation.At difierent time points in the period of 1 year after the accident.peripheral blood samples were collected from these 5 victims.CBMN assay was conducted on the peripheral blood lymphocytes on the samples,and the biological doses were estimated based on the micronuclei(MN)frequencies.The nuclear division index(NDI)obtained from in vitro irradiation experiment using high dose of 60Coγ-rays was used to estimate the exposed doses for Subject 1. Dynamic arialysis of the MN frequency for the 5 victims was performed in the period of 1 year after the accident.Results The MN frequency of Subject 1 surpassed the value corresponding to the upper limit of the MN dose.effective curve.The dose range estimated bv the combination of the CBMN and NDI (CBMN+NDl)assay was 10-20 Gy for Subject 1.The doses estimated by MN frequency for Subjects 2,3,4,and 5 were 3.6,2.9,2.3,and 2.9 Gy,respectively.The estimated doses were in accordance with those estimated by physicat method.chromosome aberration analysis.and clinical symptoms.Prominent decrease of the MN frequency was observed at 26 d after the accident(18 d after the transplantation)for Subject 1(u=3.295,P<0.05).Gradual decrease of MN frequency was observed after the accident for Subjects 2,3,4,and 5.The MN frequencies 1 month after the accident of Subjects 3,4,and 5 were all significantly lower than those 16 h later(u=6.874,4.526,and 7.811,P<0.05).Conclusions Quick and accurate.CBMN assay reinforces and verifies the result of chromosome aberration analysis.The new index CBMN+NDI assay is of reference valne for estimating higher dose of irradiation.

Objective To evaluate the biophysical properties of insulin-producing cells labeled and unlabeled with superparamagnctic iron oxide nanoparticals and poly-L-lysine(SPIO-PLL)in vitro,and then monitor cellular imaging with 1.5 T MR.Methods BMSCs were isolated from tibia and femur of 6～8 weeks normal Spragne-Dawley rats,purified on the basis of their ability to adhere to the matrix,and expanded through their self-renewal.Two-step strategy was adopted with BMSCs induced into insulin-producing cells, After that,the cells were incubated with SPIO-PLL.Prussian blue stain was employed for identifying intracellular irons.Radioimmunology assay was used to measure the insulin secretion by the labeled and unlabeled cells,and later on underwent MR imaging with T_1WI、T_2WI、T_2*WI sequences,Results lntracytoplasmic nanoparticales were stained with Prussian blue possessing insulin-producing cells labeled with SPIO-PLL.The amount of insulin secreted by the labeled and unlabeled ceils had no statistical significant difference.The signal intensity of labeled cells decreased significantly on T_2*WI,as well as the stronger proportional variations for signal intensity.Conclusion Insulin-producing cells can be labelled effectively with SPIO-PLL and be imaged by 1.5 T MRI.(J Intervent Radiol,2007,16:104-108)

Abstract: Objective To analyze the epidemiological characteristics, prevention and control strategies, measures and the effects achieved of malaria in Huangshi City from 1951 to 2021, and to offer a reference for further strengthening malaria eradication and control successes. Methods　Descriptive epidemiological methods were used to assess the prevalence, measurements, and impacts of malaria in different time periods based on data for malaria control in Huangshi City from 1951 to 2021, and we created "semi-log" line graphs and charts to display the prevalence of disease and the effort done in prior years in terms of prevention and control. Results　Between 1951 and 2021, 527 780 cases of malaria were recorded in Huangshi, with an average annual incidence rate of 40.07/10 000. The prevention and control of malaria has gone through four stages, namely, the high prevalence of malaria stage (1951-1979), the basic elimination stage (1980-1999), the consolidation stage (2000-2010), and the eradication stage (2011-2021). Different strategies and measures have been adopted in different epidemic periods. During the high epidemic period, great efforts have been made to carry out general surveys and treatments, and strengthen the management of symptomatic patients; during the eradication stage, prominent and classified prevention and control strategies were adopted. When the incidence rate dropped to below 1/10 000, the main measures adopted were malaria monitoring, including timely discovery and standardization of infectious sources, disposal of epidemic points, management of migrant population malaria and vector monitoring. Through active prevention and control, remarkable results were achieved, and the incidence rate of malaria fell to below 1/10 000 in 1989, reaching the level of "basic elimination of malaria" issued by the Ministry in 1999, and passed the provincial malaria elimination acceptance in 2015. In recent years, with the increasing labor exports and foreign exchanges, imported malaria has been on the rise. African countries are the main sources of imported malaria, and the main species is P.falciparum. Conclusions　Malaria was once one of the main infectious diseases endangering the health of people in Huangshi City. The preventive and control methods and procedures adopted in different epidemic periods are effective. Currently, we have entered the consolidation phase of malaria elimination, with the focus of work being to monitor, report, and timely and effectively respond to imported malaria cases, thus reducing the risk of local transmission.

0.05).2.Neonates umbilical serum leptin concentration was positively correlated with body mass index(r=0.520 P