Proteins, sugars and esterase isoenzymes of An. anthropophagus and An. sinensis were compared by IEF and two dimensional gel electrophoresis.The results show that there are some differences in the electrophoretic patterns between An. anthropophagus and An. sinensis. The glycoprotein, lipidprotein, glycolipi-dprotein, protein, polysaccharide and esterase isosnzymES showed 10, O, 6, 14, 2 and 13 bands in An. anthropophagus; 10, l, 5, 16, 3 and 15 in An. sinensis. There exist 234 and 240 polypeptide spots in An. anthropophagus and in An. sinensis, respectively, alto-gether 27.8% of polypeptide spots being different.

Objective To investigate the relationship between Wolbachia and deltamethrin resistance in Culex pipiens pal?lens. Methods PCR was used to detect Wolbachia in Culex pipiens pallens and qRT?PCR was performed to determine and compare the expression of Wolbachia between deltamethrin?resistant and ?susceptible strains of Culex pipiens pallens. Re?sults Wolbachia was detected in Culex pipiens pallens in the laboratory. The expression of Wolbachia was 18.42 3.69 4.43 3.96 6.31 1.55 and 3.76 folds higher in the deltamethrin?resistant strain than in susceptible strain in the egg 1st 2nd 3rd 4th stages, and male and female adults, but there was no statistical difference in the pupae stage. The expression of Wolbachia was 2.64 folds higher in deltamethrin?resistant females than in susceptible females which were caught in Jiangxinzhou of Nan?jing. Conclusion Wolbachia is associated with deltamethrin resistance in Culex pipines pallens.

24 new cDNA sequences encoding cytochrome P450 were amplified respectively from deltamethrin susceptible and -resistant strains of the mosquito, Culex pipiens pallens, with a pair of degenerate primers according to the conservative amino acid sequences of CYP4 in insects by RT-PCR. Studies of molecular systematics show that the 24 new genes (alleles) belong to CYP4C, CYP4D, CYP4H and CYP4J subfamilies of the CYP4 family, and they were named by Cytochrome P450 Nomenclature Committee. Among the new genes (alleles), CYP4C23 may be a pseudogene, CYP4H13 has a retained intron 58 nucleotides in length, and CYP4J4V1 has a stop coden (TAG) in frame near the 3'-end.

Objective To analyze the rule of lymph node metastasis, compare the preoperative computed tomographic findings with pathological diagnosis in thoracic esophageal carcinoma and to evaluate the clinical value. Methods Six hundred and eighteen patients with esophageal carcinoma after radical resection were enrolled. All patients did not receive any preoperative radiotherapy or chemotherapy, having complete information of postoperative pathological reports. CT scanning were applied to all patients in our hospital. The CT image were transmitted to the three-dimensional treatment planning system via the network at digital format and be reconstructed. In which system the sensitivity, specificity and accuracy rates in diagnosis of lymph node metastasis of the preoperative CT image were observed, measured and recorded. x2 test or Fisdher's statistical methods was adopted for comparing the concord rate of preoperative CT scanning with postoperative pathological diagnosis. Results Lymph nodes metastasis were defected in 242 of the 618 treated patients(39.2%), The rate of lymph node metastasis present in lower neck, upper-mediastinum,middle-mediastinum, lower-mediastinum, and superior abdomen regions in upper-thoracic esophageal carcinoma were 3.2% ,20.8% ,6.4% ,2.4% and 8.0%, in middle-thoracic esophageal carcinoma 1.5%,7.8% ,22.0% ,3.5% and 22.8%, and in lower-thoracic esophageal carcinoma 0% ,2.0% ,21.4% ,6.1% and 32.7%, respectively. The sensitivity, specificity, positive predictive value, negative predictive value,younden index and accuracy rates of diagnosis of lymph node metastasis with preoperative CT scan were 58.3%, 70.7%, 56.2%, 72.5%, 29.0% and 65.9%, respectively. The concordance rate of 0, 1, 2 and ≥ 3 lymph node metastasis by preoperative CT scanning with postoperative pathological diagnosis were 72.4%, 32.2% , 58.3% and 73.1%, respectively in whole group(x2 = 82. 61, P = 0.000). The concordance rate of no lymph node metastasis by CT scan comparing with that by postoperative pathological diagnosis was higher than that of the 1 lymph node metastasis in upper-thoracic esophageal carcinoma 3 lymph node metastasis were 71.1%, 30.1%, 55.6% and 77.8%, respectively(x2 =55.14,P =0.000.Conclusions Preoperative CT image can accurately predict the distribution patterns of the lymph node metastasis in esophageal carcinoma. The concordance rate was the highest in diagnosis of 0 and ≥3 lymph node metastasis, the lowest in diagnosis of one lymph node metastasis. These findings are valuable for definition of the target range of radiotherapy after radical resection of esophageal carcinoma.

Objective To explore the application of amide proton transfer (APT) imaging in differentiating glioma from treatment effect and to evaluate the diagnostic efficiency of the quantitative APT-related parameters.Methods A total of 23 patients (15 males, 8 females, age: 13-80 years) with 27 lesions who had underwent APT imaging in Tongji Hospital(Wuhan, China) from October 2014 to June 2015 were enrolled in this prospective study.The scan protocols were MRI normal plain scanning, diffusion WI, contrast-enhancement T1WI and APT imaging.Both the magnetization transfer ratio (MTR) and the relative MTR (rMTR) of lesions were manually measured by drawing ROI in the functional post-processing workstation.The results were compared with those of pathologic examinations and radiographic follow-up (≥3 months).Mann-Whitney u test was used to analyze the data.Results Compared with contralateral white matter, the primary gliomas (n=12) and recurrent gliomas (n=8) manifested hyper-intensity, while the treatment induced injuries (n=7) showed iso-or hypo-intensity.The difference of MTR between tumors and treatment effects was significant (102.78(101.93,103.84) vs 100.17(99.94, 100.63);z=-3.76, P<0.01), so was the difference of rMTR between tumors and treatment effects (3.92%(2.69%,4.67%) vs 0.47%(-0.79%,1.11%);z=-3.43, P<0.01).Both those two quantitative parameters exhibited excellent diagnostic performance with the AUC of 0.986 and 0.943.The sensitivity, specificity and accuracy of MTR were 100%(20/20), 6/7 and 96.3%(26/27) in the threshold of 100.68, while those of rMTR were 95.0%(19/20), 6/7 and 92.6%(25/27) in the threshold of 1.66%.Conclusions Combined with the routine MRI images, APT imaging can provide excellent qualitative and quantitative information in differentiating glioma from treatment effect.Both MTR and rMTR are helpful for the differentiation with high sensitivity and specificity and can be used as non-invasive imaging biomarkers in evaluating treatment effect of glioma.

OBJECTIVETo investigate the protective immunity induced by the anti-idiotypic monoclonal antibody NP30 of Schistosoma japonicum in mice.

METHODSAn orthogonal table L(16) (4 x 2(12)) was selected as the experimental design. Eight-week-old Kunming outbred mice (male and female) were randomly divided into 16 experimental groups and 2 control groups. Control groups were injected with SP2/0 ascites intraperitoneally. Mice from each group were infected with 100 +/- 2 cercariae of Schistosoma japonicum in the abdominal skin and were sacrificed on the thirtieth day postchallenge. Adult worms were recovered and counted by perfusion of the left ventricle-portal vein. The SP2/0 ascites injected mice were used as controls and the percentage of protection was calculated.

RESULTSActive immunization of mice with NP30 could produce protection levels ranging from 22.36% to 50.46% depending on the different immunity protocols. The best immunization protocol was established from the results.

CONCLUSIONSActive immunization with NP30 can induce a degree of protection to infection with Schistosoma japonicum cercariae and NP30 is a potential vaccine candidate against Schistosoma japonicum.

Analysis of Variance ; Animals ; Animals, Outbred Strains ; Antibodies, Anti-Idiotypic ; immunology ; therapeutic use ; Antibodies, Monoclonal ; immunology ; therapeutic use ; Female ; Male ; Mice ; Schistosoma mansoni ; immunology ; Schistosomiasis mansoni ; immunology ; parasitology ; prevention & control ; Treatment Outcome ; Vaccination

Objective:To investigate the risk factors and predictive value on acute kidney injury (AKI) following surgery, and to elucidate the relationship between platelet/white blood cell ratio (PWR) and AKI.Methods:A retrospective case-control study was conducted. The patients who underwent surgery admitted to Honghui Hospital of Xi'an Jiaotong University from January 2019 to January 2023 were enrolled. The patients who developed AKI during the postoperative hospital stay were categorized as the AKI group, while those with normal renal function or not meeting AKI criteria were categorized as the non-AKI group. Demographic information, clinical characteristics, perioperative medication usage, surgical related information, and preoperative and postoperative laboratory indicators were collected. Binary multivariate Logistic regression analysis was used to identify risk factors for postoperative AKI. Receiver operator characteristic curve (ROC curve) was plotted to assess the predictive efficacy of postoperative PWR for postoperative AKI.Results:A total of 420 patients were enrolled finally, with 72 developing AKI during hospitalization and 348 not developing AKI. Compared with the non-AKI group, the patients in the AKI group had a higher proportion of hypertension and coronary heart disease, a more usage of angiotensin converting enzyme inhibitor (ACEI), mannitol and vancomycin but a less usage of hydroxyethyl starch, a longer duration from injury to surgery and postoperative hospital stay, a greater intraoperative blood transfusion volume, a lower preoperative albumin (Alb), blood sodium, blood chlorine but a higher serum creatinine (SCr), blood urea nitrogen (BUN)/Alb ratio and N-terminal pro-brain natriuretic peptide (NT-proBNP), and a higher postoperative white blood cell count (WBC), BUN, SCr, BUN/Alb ratio, blood potassium, and blood phosphorus but a lower platelet count (PLT), PWR, and Alb. Binary multivariate Logistic regression analysis revealed that perioperative usage of hydroxyethyl starch [odds ratio ( OR) = 8.595, 95% confidence interval (95% CI) was 4.112-17.964, P < 0.001], prolonged duration from injury to surgery ( OR = 1.084, 95% CI was 1.034-1.137, P = 0.001), increased intraoperative blood transfusion volume ( OR = 1.001, 95% CI was 1.000-1.002, P = 0.017) were risk factors for AKI following surgery, and increased postoperative PWR was protective factor ( OR = 0.930, 95% CI was 0.894-0.967, P < 0.001). ROC curve analysis indicated that the area under the ROC curve (AUC) of postoperative PWR for predicting postoperative AKI was 0.684 (95% CI was 0.615-0.754); at the optimal cut-off value of 19.34, the sensitivity was 63.8%, and the specificity was 69.8%. Conclusions:Postoperative PWR is an independent risk factor for AKI in patients undergoing surgery. Postoperative PWR reduction in surgical patients can assist in predicting the occurrence of postoperative AKI.

OBJECTIVETo explore the correlation between UGT1A1 (*28, *60 and * 93) polymorphism and the adverse reactions in small cell lung cancer patients after irinotecan chemotherapy.

METHODSClinical data of 58 small cell lung cancer patients in extensive stage treated in our hospital were retrospectively analyzed. Polymerase chain reaction was used to amplify the UTG, and direct sequencing was performed to determine the UGT polymorphism. The adverse reactions ≥ grade 3 after irinotecan chemotherapy in patients with different UGT genotype were analyzed.

RESULTSAmongthe 58 patients with extensive stage small cell lung cancer, there were 45 (77.6%) cases of wild type UGT1A1*28, 40 (69.0%) cases of wild type UGT1A1* 93, 38 (65.5%) cases of wild type UGT1A1*60, 18 cases of mutation in UGT1A1* 93 and 20 cases of mutation in UGT1A1*60. In UGT1A1 promoter position 28, there were 8 (13.8%) cases of TA5 mutation and 5 (8.6%) cases of TA7 mutation. Among the patients with TA5 mutation, 5 cases had ≥ grade 3 diarrhea, 3 cases had ≥ grade 3 leucopenia and 3 cases had ≥ grade 3 neutropenia, while among the patients with UGT1A1 * 93 mutation, 7 cases had ≥ grade 3 diarrhea, 6 cases had ≥ grade 3 leucopenia and 4 cases had ≥ grade 3 neutropenia.

CONCLUSIONSTA5 and UGT1A1* 93 mutation increase the risk of diarrhea and ≥ grade 3 leukopenia and neutropenia, however, wild type UGT1A1 (*28, * 93, *60) and mutant UGT1A1*60 do not increase those risks. Further prospective study in a larger number of patients is needed to clarify the association between UGT1A1*28, UGT1A1* 93 and UGT1A1*60 polymorphism and adverse reactions of irinotecan, and to help clinicians in choosing a better therapeutic modality for personalized chemotherapy to improve curative effect and reduce adverse reactions.

Antineoplastic Agents, Phytogenic ; adverse effects ; Camptothecin ; adverse effects ; analogs & derivatives ; Diarrhea ; Genotype ; Glucuronosyltransferase ; genetics ; metabolism ; Humans ; Neutropenia ; Polymorphism, Genetic ; Promoter Regions, Genetic ; Prospective Studies ; Retrospective Studies ; Small Cell Lung Carcinoma ; drug therapy ; genetics

Objective:To investigate the association between congenital hypothyroidism (CH) and the adverse outcomes during hospitalization in very low birth weight infants (VLBWI).Methods:This prospective, multicenter observational cohort study was conducted based on the data from the Sino-northern Neonatal Network (SNN). Data of 5 818 VLBWI with birth weight <1 500 g and gestational age between 24-<37 weeks that were admitted to the 37 neonatal intensive care units from January 1 st, 2019 to December 31 st, 2022 were collected and analyzed. Thyroid function was first screened at 7 to 10 days after birth, followed by weekly tests within the first 4 weeks, and retested at 36 weeks of corrected gestational age or before discharge. The VLBWI were assigned to the CH group or non-CH group. Chi-square test, Fisher exact probability method, Wilcoxon rank sum test, univariate and multivariate Logistic regression were used to analyze the relationship between CH and poor prognosis during hospitalization in VLBWI. Results:A total of 5 818 eligible VLBWI were enrolled, with 2 982 (51.3%) males and the gestational age of 30 (29, 31) weeks. The incidence of CH was 5.5% (319 VLBWI). Among the CH group, only 121 VLBWI (37.9%) were diagnosed at the first screening. Univariate Logistic regression analysis showed that CH was associated with increased incidence of extrauterine growth retardation (EUGR) ( OR=1.31(1.04-1.64), P<0.05) and retinopathy of prematurity (ROP) of stage Ⅲ and above ( OR=1.74(1.11-2.75), P<0.05). However, multivariate Logistic regression analysis showed no significant correlation between CH and EUGR, moderate to severe bronchopulmonary dysplasia, grade Ⅲ to Ⅳ intraventricular hemorrhage, neonatal necrotizing enterocolitis in stage Ⅱ or above, and ROP in stage Ⅲ or above ( OR=1.04 (0.81-1.33), 0.79 (0.54-1.15), 1.15 (0.58-2.26), 1.43 (0.81-2.53), 1.12 (0.70-1.80), all P>0.05). Conclusion:There is no significant correlation between CH and in-hospital adverse outcomes, possibly due to timely diagnosis and active replacement therapy.