Abstract: Objective　To explore the value of real-time shear wave elastography in evaluating the severity of liver fibrosis in hepatitis B, and to analyze the factors that affecting its accuracy. Methods　A total of 196 chronic hepatitis B patients, who admitted to the Third Affiliated Hospital of Chengdu Medical College from February 2018 to October 2020, were selected for retrospective analysis. Demographic indicators such as gender, age, body mass index(BMI), and laboratory indicators such as fasting blood glucose, liver function, and blood lipid composition were collected. The patients were detected by real-time shear wave elastography. Taking the pathological test results as the gold standard, the diagnostic value of real-time shear wave elastography in the severity of liver fibrosis in chronic hepatitis B was analyzed, and the comprehensive effect of various factors on the diagnostic accuracy of real-time shear wave elastography was evaluated by Logistic regression analysis. Results　The differences in real-time shear wave elastography of patients with different severity of liver fibrosis in hepatitis B were statistically significant, and F0 grade

OBJECTIVE: To explore the mutation of Y-STR loci in meiotic allelic transmission in a large pedigree. METHODS: The oral swabs of 163 male individuals were collected from a Lin pedigree. Twenty-two Y-STR genetic markers were typed with AGCU Y24 fluorescent detection kit (AGCU Y24 system), which also contained 16 Y-STR markers included in Yfiler multiple amplification kit (Yfiler system). The genotyping results of Y-STR loci were compared between each two males in the pedigree. RESULTS: There were 20 and 30 kinds of haplotypes obtained with Yfiler and AGCU Y24 systems in 163 male individuals from the Lin pedigree, respectively. The rates referred to haplotype differences (RRHD) of these two typing systems between male pairs were 0.910 5 and 0.922 7, respectively. The average number of marker differences were 6.582 1 and 9.824 8, respectively. The RRHD increased along with the incidents of meiosis. CONCLUSION Y-STR mutation leads to different Y-STR haplotypes among the male members in a paternal pedigree and the rate of difference increases along with the incidents of meiosis.
Alleles ; Chromosomes, Human, Y/genetics* ; DNA Fingerprinting ; Genetic Linkage ; Genetic Markers/physiology* ; Genotype ; Haplotypes ; Humans ; Male ; Mutation/genetics* ; Pedigree

Objective:To observe the effect of warm joint needling plus rehabilitation techniques on the balance function and quality of life (QOL) of patients with spastic hemiplegia after ischemic cerebral stroke.Methods:Ninety patients with spastic hemiplegia after ischemic cerebral stroke were randomized into a rehabilitation group,a warm joint needling group and an observation group,with 30 cases in each group.The rehabilitation group was intervened by Bobath therapy,the warm joint needling group was treated with joint needling on the affected side plus warm needling,and the observation group was given the same rehabilitation treatment as the rehabilitation group together with the same warm joint needling as the warm joint needling group.The three groups were treated once another day,1 month as a treatment course for 6 months.Before the treatment,and respectively after 2-week,1-month,3-month,and 6-month treatment,the modified Ashworth scale (MAS) was used to measure the anti-spasm ability of the lower limb,the Berg balance scale (BBS) was adopted to evaluate the balance function,and the stroke-specific quality of life scale (SS-QOL)was employed to estimate the QOL.Results:After 3-month and 6-month treatment,the lower-limb MAS scores in the observation group were significantly better than those in the rehabilitation group and the warm joint needling group (all P＜0.05).After 1-month,3-month and 6-month treatment,the BBS scores in the observation group were significantly better than those in the rehabilitation group and the warm joint needling group (all P＜0.05).After 2-week,1-month,3-month and 6-month treatment,the SS-QOL scores in the observation group were markedly better than those in the rehabilitation group and the warm joint needling group (all P＜0.05).Conclusion:Warm joint needling plus rehabilitation can effectively improve the lower-limb spasticity state,balance function and QOL in patients with spastic hemiplegia after ischemic cerebral stroke.

OBJECTIVETo observe the change of cytokine interleukin IL-1 beta, IL-6, IL-10, tumor necrosis factor-alpha (TNF-alpha) occurred in acute paraquat (PQ) poisoning rats and to investigate the mechanism of acute lung injury caused by paraquat (PQ) poisoning.

METHODSAll 72 healthy adult Wistar rats were random assigned into normal control groups, paraquat high dose group (120 mg/kg), paraquat middle dose (60 mg/kg) group, paraquat low dose group (30 mg/kg). Three observing periods of time included 8, 24, 72 h and the standards of TNF-alpha, IL-1 beta, IL-6, IL-10 were determined.

RESULTSEvery index of the PQ group was significantly higher than that in the NS group at the same period of time (P<0.05 or P<0.01). In the 72 h group, the high dose group was significantly higher than the middle and low dose group (P<0.05), and there was no significantly difference between the middle and low dose group (P>0.05). For the comparison of index in the same dose group, the group of 72 h was much higher than 8 h group and 24 h group (P<0.05), and there was no difference between the 8h group and 24 h group (P>0.05).

CONCLUSIONThe cytokine may play an important role in paraquat-induced acute lung tissue injury.

Acute Disease ; Animals ; Cytokines ; blood ; Disease Models, Animal ; Female ; Interleukin-10 ; blood ; Interleukin-1beta ; blood ; Interleukin-6 ; blood ; Male ; Paraquat ; poisoning ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha ; blood

Objective To investigate the effect of cyclosporin A(CsA)on the level of anti-myelin basic protein(anti-MBP)in the serum and myelinoclasis in rat models after brain trauma.Methods Seventy-seven SD rats were randomized into blank control group(n=7),model group(n=35)and CsA-treated group(n=35).The 0.9% normal saline(5 mg/kg/d)was intraperitoneally injected into the model group and 5 mg/mL CsA(5 mg/kg/d)was injected into the CsA-treated group.Different time points(1,4,10,20 and 30 d)after the brain trauma,the MBP content and anti-MBP titer in the serum were measured using enzyme-linked immunosorbent assay(ELISA)and the degree of myelinoclasis in the brain stem slices was assessed with Marchi's method.Results As compared with that in the blank control group,the MBP and Anti-MBP contents in the model group were significantly increased(P<0.05):anti-MBP in the serum and the degree of myelinoclasis in the brain stem were all significantly increased in the 4th d,both reaching their highest levels on 10~(th) d.No significant differences of the MBP content in the serum between the CsA-treated group and the model group were found the same time points after the injury(P>0.05).However,lower level of anti-MBP in the serum 1 d after the injury and degree of myelinoclasis in the brain stem 4 daRer the injury in the CsA-treated group were observed as compared with those in the model group(P<0.05).Statistical analysis showed an intimate positive correlation between anti-MBP titer in serum and the degree of rnyelinoclasis(r=0.959,P=0.000).Conclusion CsA can affect the immune system to decrease the degree of myelinoclasis in the brain stem through decreasing the level of anti-MBP in the serum of rat models after brain trauma.

OBJECTIVE: We intended to analyze the credibility judgment in written forensic psychiatric reports of child sexual abuse registered in Southern Taiwan. METHODS: Ninety-six cases of child sexual abuse between August 2010 and October 2017 encountered in two hospitals were analyzed. The results in these reports were categorized into credible and non-credible. We identified the factors that distinguished between the two groups in bivariate analyses using chi-square test. A binary logistic regression analysis was performed to determine whether the factors that significantly correlated in the bivariate analyses were independent predictors of credible judgments. RESULTS: Among 96 cases, 70 (73%) were judged as credible. Consistent testimonies of children (odds ratio=40.82) and multiple abuse events (odds ratio=6.05) were positive variables independently related to the sexual abuse allegations judged as credible. CONCLUSION The number of allegations judged as credible in this study was slightly higher than that reported in other studies. Our findings about predictors for credible cases are not in line with those reported previously. Due to the differences in resources of the cases and backgrounds of the evaluators among multiple studies, direct comparisons with previous studies must be treated with caution.

Objective:To investigate the risk factors of cardiovascular and cerebrovascular events in patients undergoing maintenance hemodialysis (MHD).Methods:A total of 285 patients undergoing MHD in the Blood Purification Center of Yixing People′s Hospital from May 2013 to March 2018 were enrolled, including 137 patients with cardiovascular and cerebrovascular events and 148 patients without cardiovascular and cerebrovascular events. The demographic and clinical data of patients were retrospectively reviewed. The age, systolic blood pressure, duration of dialysis and prevalence of atherosclerosis were compared between the two groups; the risk factors of cardiovascular and cerebrovascular events were analyzed by multivariate logistic regression.Results:There were significant differences in age, systolic blood pressure, duration of dialysis and prevalence of atherosclerosis; serum creatinine, serum phosphorus, hs-CRP and triglyceride levels between the two groups ( P<0.05). Multivariate logistics analysis showed that age ≥50 years ( B=0.42, 95 %CI 1.06-3.06, P=0.03), duration of dialysis≥24 months ( B=0.85, 95 %CI: 1.23-3.79, P=0.01), atherosclerosis ( B=0.58, 95 %CI: 1.13-4.02, P=0.04), hypertension ( B=0.23, 95 %CI: 1.34-9.25, P<0.01), diabetic kidney disease (DKD) ( B=0.36, 95 %CI:1.19-8.27, P<0.01) , increased hs-CRP ( B=0.83, 95 %CI: 1.12-3.90, P<0.01), high serum phosphorus ( B=0.91, 95 %CI: 1.06-1.54, P<0.01) and elevated TG ( B=0.50, 95 %CI: 1.08-5.57, P<0.01) were independent risk factors for cardiovascular and cerebrovascular events in MHD patients. Early and active intervention of these risk factors may improve the clinical prognosis of MHD patients. The Cox survival curve showed that the probability of cardiovascular and cerebrovascular events increased when the duration of dialysis was>12 months, and it increased more significantly when the duratio n>24 months. Conclusion:The older age, dialysis duration, comorbidities of atherosclerosis, hypertension, DKD, and elevated serum hs-CRP, phosphorus, triglyceride may increase the probability of cardiovascular and cerebrovascular events for MHD patients.

OBJECTIVETo study the inhibitory effect of T-2 toxin on the expression of aggrecan and collagen II in chondrocytes and the protection of selenium against this effect.

METHODSHuman chondrocytes cultured in vitro were treated with T-2 toxin at different concentrations for varied time periods (1-5 days), and the cell viability was measured by MTT assay. Aggrecan expression was detected by toluidine blue staining and collagen II expression by immunostaining using monoclonal antibody of collagen. Aggrecan and collagen II mRNA expressions were measured by semiquantitative RT-PCR.

RESULTST-2 toxin dose- and time-dependently affected chondrocyte viability within the concentration range of 0.001-2 mg/L, the prolonged treatment time further enhanced the dose dependence of the inhibitory effect. T-2 toxin lowered aggrecan and collagen II synthesis in the chondrocytes and reduced their mRNA expressions. Selenium could partly attenuate the inhibitory effects of T-2 toxin on aggrecan mRNA expression, but showed no such effect against T-2-induced collagen II expression.

CONCLUSIONT-2 toxin can obviously inhibit aggrecan and collagen II synthesis in human chondrocytes, and selenium can partly antagonize the inhibitory effects of T-2 toxin on aggrecan.

Aggrecans ; biosynthesis ; genetics ; Cells, Cultured ; Chondrocytes ; cytology ; metabolism ; Collagen Type II ; biosynthesis ; genetics ; Dose-Response Relationship, Drug ; Fetus ; Humans ; Protective Agents ; pharmacology ; RNA, Messenger ; biosynthesis ; genetics ; Selenium ; pharmacology ; T-2 Toxin ; toxicity

OBJECTIVETo investigate the effects of T-2 toxin on expressions of Fas, p53, Bcl-xL, Bcl-2, Bax and caspase-3 on human chondrocytes.

METHODSHuman chondrocytes were treated with T-2 toxin (1-20 ng/ml) for 5 d. Fas, p53 and other apoptosis-related proteins such as Bax, Bcl-2, Bcl-xL, caspase-3 were determined by Western blot analysis and their mRNA expressions were determined by reverse transcriptase-polymerase chain reaction (RT-PCR).

RESULTSIncreases in Fas, p53 and the pro-apoptotic factor Bax protein and mRNA expressions and a decrease of the anti-apoptotic factor Bcl-xL were observed in a dose-dependent manner after exposures to 1-20 ng/ml T-2 toxin, while the expression of the anti-apoptotic factor Bcl-2 was unchanged. Meanwhile, T-2 toxin could also up-regulate the expressions of both pro-caspase-3 and caspase-3 in a dose-dependent manner.

CONCLUSIONThese data suggest a possible underlying molecular mechanism for T-2 toxin to induce the apoptosis signaling pathway in human chondrocytes by regulation of apoptosis-related proteins.

Apoptosis ; drug effects ; Base Sequence ; Blotting, Western ; Caspase 3 ; genetics ; metabolism ; Cell Proliferation ; drug effects ; Cells, Cultured ; Chondrocytes ; cytology ; drug effects ; metabolism ; DNA Primers ; genetics ; Gene Expression ; drug effects ; Humans ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; drug effects ; T-2 Toxin ; toxicity ; Tumor Suppressor Protein p53 ; genetics ; metabolism ; bcl-2-Associated X Protein ; genetics ; metabolism ; bcl-X Protein ; genetics ; metabolism ; fas Receptor ; genetics ; metabolism

Objective To study the HIV drug resistance (HIVDR) transmission in Kunming city of Yunnan province in 2010.Methods Referring to the guidelines for HIV drug resistance threshold survey (HIVDR-TS) set by WHO,62 plasma samples of recently reported HIV-infected individuals who were older than 25 years of age,were collected from January to August 2010.Genotyping of pol genetic mutations associated with HIVDR with reverse transcriptional PCR was performed and the prevalence of HIV-1 drug resistance transmission was evaluated.Results Of the 62 plasma samples,54 were successfully sequenced and genotyped on pol sequence.Based on the pol sequences,HIV subtypes including CRF08_BC ( 53.2％ ),CRF07_BC ( 25.5％ ),CRF01_AE ( 19.1％ )and C (2.1％) were identified.According to the time of sampling,the first 47 sequenced samples were used for drug resistance prevalence analysis.A protease inhibitor (PI) relative mutation was found in one sample.Based on the WHO standard,the prevalence of transmitted HIV-1 drug resistance was ＜5％.Conclusion HIV-1 drug resistant strains transmission was still catalogued as low prevalence level in Kunming.To prevent the increase of HIVDR prevalence,normative treatment and scientific management to AIDS patients seemed to be quite important.