Objective To investigate the relationship between expressions of multidurg resistance associated factors and chemosensitivity of 5-fluorouracil(5-FU) in lymph node metastases(LNMs) of colon carcinoma.Methods The chemosensitivity to 5-FU was measured by MTT assay,and the expressions of P-gp,GST-?,p53,survivin,Bcl-2 and Bax were determined immunohistochemically in 48 paired primary tumor(PT) and LNMs of colon carcinoma.Results The inhibition rates of LNMs cells for 5-FU were higher than that of PT(P

Objective To study the characteristics of hemogram and myelogram with Brucellosis patients.Methods 25 Brucellosis patients' bone marrow and peripheral blood smears were observed,at the same time a deep clinical inverstigation on the patients was conducted. Results The counts of blood cells were decreased in part pa-tients, and a typical lymphocytes were found in peripheral blood of 64% patients. The marrow proliferative activities were normal(92% ) or higher(8% ),and all patients had poisonous granules. Red cell proliferative activities were normal(68% ) or lower(32% ). The counts of megakaryocytes were normal,but the maturity of megakaryocyte was hindered. All patients' histocytes were increased at different degrees. NAP were increased. Conclusion The changes of hemogram and myelogram have clinical significance for diagnosis of Brucellosis, but primary hematologic disease with Brucellosis should be distinguished.

Objective: To understand the iodine content of drinking water in Ningxia, and provide a basis for promoting scientific iodine supplementation. Methods: In 2017, 22 counties (cities, districts) of Ningxia Hui Autonomous Region were surveyed by township (town, street office) as the unit. Water samples were collected and iodine content was detected according to the unified centralized water supply, mixed water supply and all the scattered water supply methods. Among them, the investigation at township (town and street office) level found that the median of iodine in water was > 10 μg/L, and then the water samples were collected in administrative villages (neighborhood committees) and the content of iodine in water was detected. Results: A total of 242 townships (town, street office) were surveyed at the township level water iodine, and a total of 1 048 water samples were collected, the median water iodine was 6.6 μg/L, the range was 0.0-97.8 μg/L. There were 75 townships with a median water iodine > 10 μg/L, and an administrative village level water iodine survey was conducted. A total of 1 169 water samples were collected, the median water iodine was 14.5 μg/L, and the range was 0.0-97.4 μg/L. The median water iodine at the township level, unified centralized water supply, mixed water supply, and all the scattered water supply was 6.9, 6.8, and 4.5 μg/L, respectively. The difference was statistically significant (χ² = 7.08, P < 0.05). The median water iodine at the administrative village level, unified centralized water supply, mixed water supply, and all the scattered water supply was 15.8, 8.4, and 11.6 μg/L, respectively. The difference was statistically significant (χ² = 35.23, P < 0.05). Conclusion The iodine content of drinking water in Ningxia residents is low, which is consistent with the fact that Ningxia is in the iodine deficient area.

Objective:To analyze and compare the salt iodine content and iodine nutrition status of pregnant women in Ningxia Hui Autonomous Region (Ningxia for short), and to provide basis for formulation of prevention and control measures.Methods:From 2017 to 2020, 100 pregnant women were surveyed each year in 22 counties (cities, districts) in Yinchuan, Shizuishan, Wuzhong, Guyuan and Zhongwei of Ningxia, salt samples and urine samples were collected for salt iodine and urinary iodine detection.Results:Totally 8 807 salt samples were collected, the median salt iodine was 24.6 mg/kg. The qualified rate of iodized salt was 91.59% (7 838/8 558), the coverage rate of iodized salt was 97.17% (8 558/8 807), and the consumption rate of qualified iodized salt was 89.00% (7 838/8 807). The consumption rate of qualified iodized salt increased year by year (χ 2trend = 248.47, P < 0.001). There were statistical differences in salt iodine levels in different years and regions ( H = 259.14, 37.09, P < 0.001). Totally 8 107 urine samples were collected, the median urinary iodine of pregnant women was 165.00 μg/L, which reached the appropriate level. The median and composition of urinary iodine were statistically different in different regions and pregnancies ( H = 28.87, 17.91, P < 0.001; χ 2 = 85.89, 20.59, P < 0.05). Conclusions:The coverage rate of iodized salt among pregnant women in Ningxia is high, and the urinary iodine level is generally in a suitable state. However, for pregnant women at risk of iodine deficiency, special attention should be paid and targeted iodine supplementation measures should be taken.