Safety of modified T-piece resuscitator versus nasal cannula oxygen in electronic bronchoscopy for infants: a prospective randomized controlled study / 中国当代儿科杂志

OBJECTIVES@#To optimize the oxygen therapy regimens for infants with pulmonary diseases during bronchoscopy.@*METHODS@#A prospective randomized, controlled, and single-center clinical trial was conducted on 42 infants who underwent electronic bronchoscopy from July 2019 to July 2021. These infants were divided into a nasal cannula (NC) group and a modified T-piece resuscitator (TPR) group using a random number table. The lowest intraoperative blood oxygen saturation was recorded as the primary outcome, and intraoperative heart rate and respiratory results were recorded as the secondary outcomes.@*RESULTS@#Compared with the NC group, the modified TPR group had a significantly higher level of minimum oxygen saturation during surgery and a significantly lower incidence rate of hypoxemia (P<0.05). In the modified TPR group, there were 6 infants with mild hypoxemia, 2 with moderate hypoxemia, and 1 with severe hypoxemia, while in the NC group, there were 3 infants with mild hypoxemia, 5 with moderate hypoxemia, and 9 with severe hypoxemia (P<0.05). The modified TPR group had a significantly lower incidence rate of intraoperative respiratory rhythm abnormalities than the NC group (P<0.05), but there was no significant difference in the incidence rate of arrhythmias between the two groups (P>0.05).@*CONCLUSIONS@#Modified TPR can significantly reduce the risk of hypoxemia in infants with pulmonary diseases during electronic bronchoscopy, and TPR significantly decreases the severity of hypoxemia and the incidence of respiratory rhythm abnormalities compared with traditional NC.

Serosurvey of Avian metapneumovirus, Orithobacterium rhinotracheale, and Chlamydia psittaci and Their Potential Association with Avian Airsacculitis / 生物医学与环境科学（英文）

Seasonal outbreaks of airsacculitis in China's poultry cause great economic losses annually. This study tried to unveil the potential role of Avian metapneumovirus (AMPV), Ornithobacterium rhinotracheale (ORT) and Chlamydia psittaci (CPS) in avian airsacculitis. A serological investigation of 673 breeder chickens and a case-controlled study of 430 birds were undertaken. Results showed that infection with AMPV, ORT, and CPS was highly associated with the disease. The correlation between AMPV and CPS were positively robust in both layers and broilers. Finally, we determined the co-infection with AMPV, ORT, and CPS was prevalent in the sampled poultry farms suffering from respiratory diseases and the outbreak of airsacculitis was closely related to simultaneous exposure to all three agents.

Effect of ~(56)Fe~(17+) heavy ion on the expression of phosphorylated histone H2AX of human lymphocytes / 中国职业医学

OBJECTIVE: To explore the effect of~(56)Fe~(17+)heavy ion on the expression of phosphorylated histone H2AX( γH2AX) of human lymphccytes. METHODS: The Epstein-Barr virus transformed human B lymphocyte cell lines( PengEBV) were selected and exposed to~(56)Fe~(17+)heavy ion at irradiation dose of 0. 0( control group),0. 1,0. 3,0. 5,0. 7,1. 0 and 2. 0 Gy,respectively,with the dosing rate of 0. 23-0. 55 Gy / min. Flow-cytometry was used to detect the changes of expression of γH2AX at time points of 0,2,4,8,48 and 72 hours after irradiation. RESULTS: The expression of γH2AX showed interaction existed between radiation dose and the treatment time after radiation( P < 0. 01). Compared with the control at the same time points,the expression of γH2AX increased at the dose of 0. 3-2. 0 Gy and the time points of 2-72hours( P < 0. 05). The expression of γH2AX at the dose of 0. 3-2. 0 Gy and time points of 8-72 hours was lower than those at the same dose and time points of 2 and 4 hours( P < 0. 05). When the dose was at 0. 5,1. 0 or 2. 0 Gy,the expression of γH2AX decreased with the increasing time of exposure in 72 hours( P < 0. 05). At the dose of 0. 0-1. 0 Gy and the time points of 2-4 hours,the expression of γH2AX increased with the increasing dose of irradiation( P < 0. 01). CONCLUSION: The expression of γH2AX in Peng-EBV cells shows a dose-response relationship within 2-4 hours after 0. 0-1. 0 Gy irradiation of~(56)Fe~(17+).

Research progress of TRAIL network against tumor under the guidance of systems biology / 基础医学与临床

Tumor is a system-biology illness.Treatment of this intractable disease by any single medicine has not been realistic.In this review, we analyze the anti-tumor network of Tumor Necrosis Factor-related Apoptosis-indu-cing Ligand ( TRAIL ) by a system-biology technology and try to providecin individualized treatment strategy for TRAIL based therapy .

Surgical treatment for cancer of the pancreatic head / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To explore and evaluate the therapeutic efficacy of surgical treatment for cancer of the pancreatic head.</p><p><b>METHODS</b>The clinical data of 96 patients with cancer of the pancreatic head admitted in our hospital from January 2002 to December 2009 were retrospectively analyzed. pancreatoduodenectomy was performed in 48 cases, extended pancreatoduodenectomy in 30 cases, and Roux-Y cholangiojejunostomy in 18 cases.</p><p><b>RESULTS</b>The 1, 2 and 3-year survival rates were 59.2%, 41.8% and 13.2%, respectively, in the patients treated with pancreatoduodenectomy, and 73.2%, 58.2% and 24.1%, respectively, in the patients treated with extended pancreatoduodenectomy. The 1, 2 and 3-year survival rates were 36.8%, 15.8% and 5.3%, respectively, in the patients with unresectable tumor who received radiotherapy and (or) chemotherapy in Roux-Y cholangiojejunostomy. The postoperative morbidity was 29.2%, 30.0% and 27.8% in the patients treated with pancreatoduodenectomy, extended pancreatoduodenectomy and Roux-Y cholangiojejunostomy, respectively.</p><p><b>CONCLUSIONS</b>Pancreatoduodenectomy is the most effective treatment. Extended pancreatoduodenectomy can improve the surgical resection rate, reduce the recurrence rate and improve the survival rate. Internal drainage is an important palliative measure.</p>

Measurement and analysis of personal noise exposure in a city metro / 中华预防医学杂志

<p><b>OBJECTIVE</b>To measure and analyze the personal noise exposure of city metro station workers by using noise dosimeter.</p><p><b>METHODS</b>According to job category and work type, all workers were divided into 4 groups. The workers from each group were selected as subjects for personal noise exposure measurement. CEL-320 dosimeters were worn by each subject and noise data collected by a phone fixed at collar. All subjects were asked to take notes about their working activities when they were wearing CEL-320 dosimeters. Each worker's one workday LAeq, geometric mean and range of each group were computed.</p><p><b>RESULTS</b>There were many noise sources in the metro station, and the noise exposure was unstable. The varieties of personal noise levels were recorded among 48 workers, the highest LAeq work type was of the instrument room, (81.8 +/- 2.5) dB (A), and the biggest LAeq rang was of the hall, 8.1 dB (A). The lowest LAeq was of the station control room (68.7 +/- 1.8) dB (A) and the lowest LAeq rang also was there, 4.0 dB (A).</p><p><b>CONCLUSION</b>The personal noise exposure of metro station should be implicated. Measuring personal noise exposure individually with dosimeters might obtain the noise exposure level more integrally in the complicated environment.</p>

Observing the distribution of Annexin I and cPLA2 in the palatal process of mice by immunohistochemical staining / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To observe the distribution of Annexin I and cytosolic phospholipose A2 (cPLA2) in the palatal process of dexamethasome teratogenerated mice.</p><p><b>METHODS</b>Cutting along the coronary plane of the heads of fetal mice to obtain palate in the 14th, 15th, 16th day of gestation by 10-week-old in-bred mice. The distribution of Annexin I and cPLA2 was checked by immunohistochemical staining.</p><p><b>RESULTS</b>During the fusing of the palatal processes, the staining of Annexin I and cPLA2 was positive in the epithelial and mesenchymal cells of the palatal process, and the intensity of staining changed with time.</p><p><b>CONCLUSION</b>Annexin I and cPLA2 can modulate the development of fetal palate to some extent, and they may be important mediators in the development of cleft palate induced by dexamethasone.</p>

Study on the expression level of Annexin I, cPLA(2) and PCNA in cleft-palate mice induced by dexamethasone / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To test the changing expression level of Annexin I, cPLA(2) and PCNA in the palatine process of cleft-palate mice A/J and C57B/6j induced by dexamethasone. To discuss the developing mechanism of cleft-palate and the corresponding preventive methods.</p><p><b>METHOD</b>s Pregnant mice A/J and C57BL/6j were randomly divided into normal group as blank control, group with deformity induced by dexamethasone, group given VitB(12) as antagonist to deforming factor, group given only VitB(12). The relative quantity of Annexin I, Cpla2 and PCNA were detected by immunoblotting.</p><p><b>RESULTS</b>Among mice A/J, with the development of palatine process, Annexin I's expression level was increased in the normal group, and other groups showed the similar changes. Annexin I's expression level was significantly higher in group DEX and group DEX + VitB(12) than in normal group and VitB(12) group of, while there was no significant difference between normal group and VitB(12) group. But the changes of cPLA(2) and PCNA expression level was in an opposite direction, with development it decreased in the normal mice's palatine process. In mice C57B/6j there was no significant difference between normal group and group DEX on the measured quantity of Annexin I, cPLA(2) and</p><p><b>CONCLUSIONS</b>Annexin I and cPLA(2) introduce glucocorticoid to induce cleft-palate. VitB(12) can not inhibit DEX's enhancing effect on the expression level of Annexin I, but it can antagonize DEX's inhibiting effect on expression level of cPLA(2), which is probably one of the mechanisms why VitB(12) antagonize glucocorticoid's deforming effect.</p>

STUDY ON THE SENSIBILITY OF LPL-PVUⅡ GENE POLYMORPHISM TO INTERVENTION OF COARSE GRAIN FOOD IN DYSLIPIDEMIA POPULATION / 营养学报

Objective: To explore the different genotypes’ susceptibility to intervention of coarse grain food in dyslipdemia population. Method: 409 middle and old aged residents with blood lipoprotein abnormalities were randomized to 2 groups: the intervention group (230 subjects) and the control group (179 subjects). Everyone of the former group was given a steamed bread of coarse grain food per day and health education once every month; while the control group was only given health education. Intervention period was 6 months. The genotypes of LPL-Pvu Ⅱ of the intervention group were analyzed by PCR-RFLP (restriction fragment length polymorphism) technique. Results: All indices in intervention group except WHR were improved after intervention. BMI, WHR, SBP, DBP, serum TG were significantly lower than control group; while serum HDL-C was significantly higher than control group after intervention. Among all genotype groups, the P+/P+ group was more sensible for the change of serum TG and more significant in the effect of improving blood lipids than the P-/P- group; and the susceptibility of change for TC and HDL-C in serum was least in the P-/P- group. Conclusion: There are good intervention effects of coarse grain food in dyslipdemia population. The susceptibilities to improve blood lipids vary with different geno-types of LPL-Pvu Ⅱ , especially for change of serum TG ,and P+/P+ group was more sensible.