Objective To explore the correlation between cytomegalovirus pneumonia (CMV-IP) and viral load in renal transplant recipients and to find out the threshold value of viral load for predicting CMV-IP. Methods The blood samples of 56 renal transplant recipients were taken weekly for the first 2 months and every 2 weeks for 2-6 months after transplantation.Real-time PCR were used to quantify the plasma CMV DNA.The mean viral loads of CMV-IP group and non-CMV-IP group in each time were compared using Wilcoxon test.Different cut-off values were tested to find the suitable values to predict the CMV-IP. Results Of the 56 recipients,8 (14.3%) developed CMV-IP.The viral loads were near zero in the first 4 weeks in both groups;from week 5 the viral load of CMV-IP group increased gradually and reached the climax at week 8 and then declined,but the load of non-CMV-IP group fluctuated at a low level.During weeks 5-11,the viral loads of CMV-IP group were higher than those of non-VMV-IP group.At 5,7 and 9 weeks,the differences of the viral loads between the 2 groups were significant (P

Three tricyclic [6,5,7] and six tetracyclic [6,5,5,5] novel indole alkaloids were synthesized and evaluated on triglyceride inhibitory activities for the first time. Among them, compound 4c showed the most potent activity with IC₅₀ value of 6.35 μmol·L^-1. Meanwhile, compound 4c also exhibited a good safety profile at the cellular level. Preliminary mechanism study indicated that 4c might increase intracellular lipid metabolism by activating AMPK. These results provide a novel family of lead compounds for the discovery of anti-NAFLD candidates.

ObjectiveThe purpose of this study was to assess the efficacy,safety and optimal dose of tacrolimus monotherapy in patients with refractory lupus nephritis(LN) who were resistant to cyclophosphamide(CYC).MethodsA total of 14 LN patients (2 men and 12 women) with persistent proteinuria who were resistant to CYC treatment more than 8 g for half a year were enrolled.Tacrolimus was initiated at 2 mg/d (patient weight＜60 kg) or 3 mg/d(patient weight≥60 kg) which was administered in two divided doses.Prospective data on daily proteinuria,serum album level and serologic lupus activity were collected and followed for 6 months.ANOVA and Pearson correlation analysis were used for statistical analysis.Results Mean age at baseline was(30±9) years.Mean urinary protein decreased significantly from(6.2±5.1) g at baseline to (1.1±0.9) g at 6 months (F=16.21,P＜0.01).Mean serum album level increased significantly from (27.9±9.7) g/L at baseline to(37.8±2.2) g/L at 6 months(F=16.71,P＜0.01 ).Complete or partial response was observed in 86％ of patients receiving tacrolimus therapy.The effective dosage in this study was 0.03-0.06mg·kg-1·d-1 of the patients who had complete response or partial response to tacrolimus.The tacrolimus level in partially and completely responding patients was less than 3 ng/ml.There was no significant difference among blood tacrolimus levels of complete,partial,and no response patients [(1.6-±0.4),(2.0±0.6) and (22±1.1) ng/nl],respectively).No definite correlation was found between efficacy and tacrolimus level.Tacrolimus was well tolerated at current dose,besides one with new onset hypertension and one with alopecia.ConclusionOur results suggest that tacrolimus at low dosage and serum level is potentially effective and safe for the treatment　of patients with LN and persistent proteinuria resistant to CYC.The optimal dosage of tacrolimus for LN may　be 0.03-0.06 mg·kg-1·d-1.

OBJECTIVETo explore the changes in plasma angiotensin II (Ang II) and circadian rhythm of blood pressure among hypertensive patients with sleep apnea syndrome (SAS) before and after continuous positive airway pressure (CPAP) or surgical treatment.

METHODSA total of 180 essential hypertension patients were enrolled in our study. The determination of plasma Ang II concentration, ambulatory blood pressure (ABP), and polysomnography (PSG) monitoring were performed before and 3 months after CPAP or surgical treatment.

RESULTSPatients were classified into three groups by their apnea-hypopnea index (AHI): essential hypertension group (EH group, n = 72; AHI< 5), essential hypertension with mild SAS group (EH+mild SAS group, n = 60, 5 ≤ AHI < 20), and essential hypertension with moderate and severe SAS group (EH + moderate-severe SAS group, n = 48, AHI ≥ 20). The concentrations of plasma Ang2 in the above three groups were 13.42 ± 3.27, 16.17 ± 3.82, and 18.73 ± 4.05 ng/mL respectively before treatment, and Ang2 concentration in EH patients combined with SAS was significantly higher than that in EH group (all P < 0.05). After treatment the values in the latter two groups significantly decreased to 14.67 ± 2.56 and 15.03 ± 3.41 ng/mL respectively (P < 0.05). The incidence of non-dipper blood pressure curve in EH patients was 31.9%, and those in hypertensive patients with mild SAS and moderate-severe SAS were 51.7% and 58.3%, respectively before treatment. The incidence of non-dipper blood pressure curve in the EH patients with mild SAS was significantly higher than that of patients with EH alone (P < 0.05). After CPAP treatment or surgery, the incidence of non-dipper blood pressure curve in the two SAS groups was significantly decreased to 38.3% and 39.6%, respectively (P < 0.05).

CONCLUSIONSAng II might play a role in blood pressure variability in patients with obstructive SAS. CPAP or surgical treatment can improve blood pressure disorder and decrease plasma Ang II level in patients with obstructive SAS.

Adult ; Aged ; Angiotensin II ; blood ; Blood Pressure ; physiology ; Blood Pressure Monitoring, Ambulatory ; Circadian Rhythm ; physiology ; Continuous Positive Airway Pressure ; Female ; Humans ; Hypertension ; physiopathology ; Male ; Middle Aged ; Pharynx ; surgery ; Polysomnography ; Sleep Apnea Syndromes ; blood ; physiopathology ; surgery ; therapy

OBJECTIVETo find out the vector ability and function of Nosopsyllus wualis leizhouensis in the transmitting plague.

METHODSIn T: 19 degrees C +/- 1 degrees C, RH: 85% +/- 5%, data regarding the vector ability as cluster spreading, single flea spreading, single flea transmitting plague to single animal, formative bacterial embolus and infection fleas life-span through experiments was gathered.

RESULTSThe rate of infection on fleas was 94.64%, with 100% transmission rate of colony to spread, and 30% from single flea spreading to single animal. In the experiment of single flea transmission, all of the 388 rattus loseas were bitten by the fleas with bacterial, but only 9 animals were characteristically infected with the transmission potential, vector efficiency, survival potential of embolus, vector index as 0.360, 0.257, 0.868 and 0.223 respectively. The mean survive days of infected flea feed with blood were 17.58 (1 - 58), and the mean survive days of hunger infected flea were 7.25 (1 - 16). Formative bacterial embolus days were 8.80 (2 - 16) and the rate of embolus flea was 78.12%.

CONCLUSIONNosopsyllus wualis leizhouensis could serve as vector and important in the mode of plague transmittion.

Animals ; Female ; Insect Vectors ; microbiology ; Male ; Plague ; transmission ; Rats ; Siphonaptera ; microbiology

Adult ; Aged ; Anthracosis ; diagnostic imaging ; therapy ; Bronchoalveolar Lavage ; Humans ; Lung ; diagnostic imaging ; Male ; Middle Aged ; Radiography

Objective To investigate the change of circadian blood pressure variability (BPV) and plasma neopterin before and after surgey (uvulopalatopharyngoplasty) for patients with obstrcuctive sleep apnea syndrome (OSAS). Methods A total of 382 OSAS patients underwent uvulopalatopharyngoplasty were divided into three groups based on polysomnography (PSG) results: mild OSAS ( n = 206 ), moderate OSAS (n = 108 ) and severe OSAS (n = 68 ). Plasma neopterin, 24-hour ambulatory blood pressure monitoring (ABPM), PSG were measured before and 3 months after surgery. Results Plasma neopterin increased in proportion to severity of OSAS before surgery (15.08 nmol/L,27. 68 nmol/L and 37.32 nmol/L in patients with mild to severe OSAS) which were significantly reduced post surgery (9. 92 ng/ml, 15.07 ng/ml and 18. 54 ng/ml, all P ＜0. 05 vs. pre-surgery). The incidence of non-dipper curve in three OSAS groups were 50. 2% ,72. 7% and 86. 5%, respectively before surgery and the values decreased to 34. 8%,48. 2% and 49. 2% after surgery (all P＜0. 05 vs. pre-surgery). Relevance analysis indicates that D-value of nocturnal and diurnal blood pressure was negatively correlated with plasma neopterin. Conclusion Our findings indicated that plasma neopterin and the incidence of non-dipper could reliably reflect OSAS severity and could thus be used to evaluate the surgery efficacy. Plasma neopterin might be an important player in the pathophysiology of OSAS via modulating blood pressure variability.

OBJECTIVETo investigate the risk factors of functional recovery after intramedullary nail fixation for femoral intertrochanteric fracture in elderly patients, and to propose corresponding measures to promote postoperative hip function recovery.

METHODSFrom June 2012 to June 2015, 74 patients after intramedullary nail fixation surgery were analyzed, including 33 males and 41 females, with an average age of(75.07±7.89) years old, and divided into well-function group(55 patients) and bad-function group(19 patients) according to Sanders function criterion. Age, gender, bone density, fracture type, systemic disease, complication, rehabilitation exercises with therapist or not, nourishment state, anesthesia method, fracture reduction condition, ASA classification, tip apex distance were reviewed and analyzed by t test, non-parametric test, χ² test and Logistic analysis.

RESULTSUnivariate analysis showed that age, bone density, nourishment state, ASA classification, anesthesia method, fracture reduction condition, rehabilitation exercises with therapist, and tip apex distance were the risk factors for the recovery of hip function. Logistic analysis showed that bone density(0.006, OR=0.077), rehabilitation exercises with therapist(0.006, OR=0.070), ASA classification(<0.001, OR=0.049), nourishment state (0.046, OR=0.188) were the risk factors for the functional recovery.

CONCLUSIONSBone density, rehabilitation exercises with therapist, ASA classification, nourishment state were the risk factors for the functional recovery of intramedullary nail fixation for intertrochanteric fracture in elderly patients. Multidisciplinary cooperation and fast track surgery system should be set up to promoting the hip functional recovery.

Objective: To establish a precolumn chiral derivatization method for determination of fexofenadine enantiomers , a chiral substrate of OATP1B1, in cellular model.Methods: R-( +)-phenylethylisocyanate was selected as chiral derivatization reagent , which was reacted with fexofenadine to form carbamate derivatives . Enantiomers were identified by LC/MS and separated by RP-HPLC.Results:Under the experimental conditions , the fexofenadine enantiomers were separated completely .The standard curve was linear over the concentration range of 25-100 ng/ml (R2 =0.9992, 0.9989).Accuracy was 101.1%and 98.3%, intra-precision was 2.4%and 3.1%, inter-precision was 3.1% and 4.0% for D1 and D2, respectively.Conclusion: The method established is sensitive and accurate for determination of fexofenadine enantiomers in cells .

OBJECTIVE: To investigate the risk factors for cow's milk protein allergy (CMPA) among infants through a multicenter clinical study. METHODS: A total of 1 829 infants, aged 1-12 months, who attended the outpatient service of the pediatric department in six hospitals in Shenzhen, China from June 2016 to May 2017 were enrolled as subjects. A questionnaire survey was performed to screen out suspected cases of CMPA. Food avoidance and oral food challenge tests were used to make a confirmed diagnosis of CMPA CMPA. A multivariate logistic regression analysis was used to investigate the risk factors for CMPA. RESULTS: Among the 1 829 infants, 82 (4.48%) were diagnosed with CMPA. The multivariate logistic regression analysis showed that maternal food allergy (OR=4.91, 95%CI: 2.24-10.76, P<0.05), antibiotic exposure during pregnancy (OR=3.18, 95%CI: 1.32-7.65, P<0.05), and the introduction of complementary food at an age of <4 months (OR=3.55, 95%CI: 1.52-8.27, P<0.05) were risk factors for CMPA, while exclusive breastfeeding (OR=0.21, 95%CI: 0.08-0.58, P<0.05) and the introduction of complementary food at an age of >6 months (OR=0.38, 95%CI: 0.17-0.86, P<0.05) were protective factors. CONCLUSIONS The introduction of complementary food at an age of <4 months, maternal food allergy, and antibiotic exposure during pregnancy are risk factors for CMPA in infants.
Animals ; Cattle ; China ; Female ; Humans ; Infant ; Milk Hypersensitivity ; Milk Proteins ; Pregnancy ; Risk Factors ; Surveys and Questionnaires