Objective To measure the effect of panax notoginseng saponins (PNS) on renal cortical tubule cell apoptosis and apoptosis-related genes in early stage after renal trauma and to investigate the protective mechanism of PNS for renal trauma.Methods Seventy-eight Wistar rats were divided into trauma group (n =36),trauma + treatment group (treatment group,n =36),normal control group (control group,n =6) according to the random number table.In treatment group,rats received intraperitoneal administration of PNS (70 mg/kg).Instead,substitute of an equal dose of isotonic saline was used for the rats in trauma and normal control groups.Trauma and treatment groups were subdivided at 1,6,12,24,36 and 48 hours posttrauma,with 6 rats per group.The kidney specimens were extracted at each time point to detect Bax expression in the cortex with immunohistochemistry and in situ hybridization histochemistry.Moreover,the positive expression of Bax was compared among groups and its variation regularity with time were detected.Results In trauma group,mRNA transcription of pro-apoptosis gene Bax increased at 12 hours in the superficial cortex,but increased at 1 hour in deep cortex; protein expression of pro-apoptosis factor Bax showed no apparent reduction within 36 hours in the superficial cortex,but evident decrease within 12 hours in the deep cortex.In treatment group,mRNA transcription of pro-apoptosis gene Bax decreased immediately after treatment in the renal cortex and lasted until 48 h; protein expression of pro-apoptosis factor Bax showed unidirectional reduction until 48 h in the renal cortex.Conclusion PNS inhibits cell apoptosis by down-regulating the mRNA and protein expression of Bax.

Objective To study the advantage of using axillary fascia swelling in cleaning the lymph nodes in modified radical mastectomy. Methods 866 patients with breast cancer collected from June 2005 to June 2011 were divided into the observation group (578 cases, axilla-ry fascia swelling method) and the control group (288 cases, standard operation method), and the postoperative complications of the two groups were compared. Results In the observation group, there were 8 cases (1. 4%) of upper limb lymphatic edema, 13 cases (2. 2%) of chest wall and upper limb paresthesia, and 8 cases (1. 4%) of lymphatic leakage. The complications of the observation group were significantly reduced compared with the control group (P<0. 05), and there was no increase in the local recurrence rate (P<0. 05). Conclusion Axillary fascia swell-ing applied in cleaning lymph nodes could obviously reduce the postoperative complications after modified radical mastectomy.

Objective To evaluate the application value of ultrasound-guided Mammotome minimally invasive surgery system in non-palpable breast lesions.Methods A total of 325 lesions of 245 patients with breast lumps by ultrasound examination were under ultrasound-guided Mammotome minimally invasive surgery system.Results Accurate and complete resection of all of the 325 breast lumps was achieved,5 lesions with hematoma,the incidence rate was 1.54％ (5/325).The pathologic diagnoses included:fibro-adenoma (172 lesions),intraductal papilloma (8 lesions),fibroadenosis (87 lesions),fibro-cystic adenosis (56 lesions),invasive ductal carcinoma (2 lesions).Conclusion The application of ultrasound-guided Mammotome minimally invasive surgery system in non-palpable beast lesions has advantages of accurate positioning,minimally invasive,beautiful.

Objective:To study the epidemiological characteristics and spatio-temporal aggregation of hemorrhagic fever with renal syndrome (HFRS) in Shandong Province, and to provide reference for formulating reasonable prevention and control strategies.Methods:Retrospective analysis was used to collect HFRS surveillance data and confirmed case data in Shandong Province from 2017 to 2020 in the "China Disease Prevention and Control Information System Infectious Disease Surveillance System". Geoda 1.18 software was used for global and local spatial autocorrelation analysis, SaTScan 9.6 software was used for spatio-temporal scanning analysis, and ArcGis 10.7 software was used for map drawing and visual display.Results:A total of 3 753 cases of HFRS were reported in Shandong Province from 2017 to 2020, including 56 deaths. The annual incidence rate was 1.26/100 000, 1.22/100 000, 0.75/100 000 and 0.53/100 000, respectively, with an average annual incidence rate of 0.94/100 000. The incidence of HFRS was obviously seasonal, mainly concentrated in autumn and winter from October to December, accounting for 50.41% (1 892/3 753). The age of onset was mainly 30-59 years old, accounting for 61.68% (2 315/3 753). The male to female ratio was 2.76 ∶ 1.00 (2 756 ∶ 997). The occupation distribution was mainly farmers, accounting for 81.99% (3 077/3 753). The global spatial autocorrelation analysis showed that HFRS showed spatial aggregation areas in each year from 2017 to 2020 (Moran' I = 0.38, 0.33, 0.59, 0.46, Z = 7.47, 7.23, 10.69, 8.66, P < 0.001). The local spatial autocorrelation analysis showed that "high-high" aggregation areas were mainly concentrated in central and southeast of Shandong Province, while "low-low" aggregation areas were mainly concentrated in northwest of Shandong Province. Spatio-temporal scanning analysis revealed 1 type Ⅰ agglomerations and 2 type Ⅱ aggregation areas. The type Ⅰ aggregation areas occurred from October to November 2018, covering 22 counties (districts) of 5 cities in Qingdao, Yantai, Weifang, Weihai and Rizhao. The first type Ⅱ aggregation area occurred from October to November 2017, involving 23 counties (districts) of 8 cities in Jinan, Zibo, Zaozhuang, Weifang, Jining, Tai 'an, Rizhao and Linyi. The second type Ⅱ aggregation area occurred in Jinxiang County, Jining City from February to March 2017. Conclusion:The incidence of HFRS in Shandong Province from 2017 to 2020 has obvious spatio-temporal aggregation, and the hot spots are concentrated in central and southeast of Shandong Province, which should be regarded as a key area for prevention and control of HFRS.