OBJECTIVE Oxidative sress is one of the key factor responsible for occurrence and development of hepatic fibrosis, a common consequence of chronic liver injury of multiple etiology. Nuclear factor erythroid 2-related factor 2 (Nrf2) serves as a major regulator of a celular defense system against oxidative stress. Xiaochaihutang (XCHT), a compound of seven botanical extracts used for liver diseases traditionally in East Asia. However, few studies have investigated its anti-hepatic fibrosis effects and pathophysiological mechanism of action. The present study was designed to confirm the anti-hepatic fibrosis effects and explore its potential mechanism of action by investigating the intervention of Nrf2 pathway. METHODS Liver fibrosis was induced by repeated injection of Carbon tetrachloride (CCl4) over a period of 9 weeks. Starting from the 6th week, the animals in treatment groups were given the appropriate dose of XCHT granules and silybin. Biochemical parameters, histological changes of the liver and alpha-smooth muscle actin (α-SMA) were determined. The expressions of Nrf2, Keap1, Nqo1, HO-1, Gclc and Gclm were assessed by RT-PCR and Western blot. RESULTS CCl4 caused a significant fibrosis damage in the rat liver and the liver functions and fibrosis degree were significantly improved by XCHT (5 g·kg- 1 and 10 g·kg- 1). XCHT (5 g·kg- 1 and 10 g·kg- 1) treatment significantly decreased the number of cells labeled with α-SMA antibodies. Moreover, XCHT (5 g·kg-1 and 10 g·kg-1) significantly increase Nqo1, HO-1, Gclc and Gclm expressions in the liver. CONCLUSION These studies establish XCHT is a potentially useful therapeutic agent for treatment of hepatic fibrosis and it might be via regulation of Nrf2 pathway in rats against oxidative stress, making further efforts to inhibiting the activated HSCs. Activation or up-regulation of Nrf2 pathway may be an alternative treatment strategy for liver fibrosis.

OBJECTIVEAn improved tracheal intubation method was used in preparation of myocardial infarction model in the mouse for increasing the success rate.

METHODSThe mice were intubated by an improved trachea cannula through oral cavity. The left anterior thoracotomy performed. The myocardial infarction model was made by legating the left anterior descending coronary artery in mouse. The color of heart was observed, and electrocardiogram was recorded. The survival rate and pathologic change were observed after two weeks of operation.

RESULTS40 myocardial infarction model mice were made by improved trachea cannula. The color of ventricles anterior wall had got madder red, and ST stages were raised on II leads of electrocardiogram in all of model mice. After two weeks, 27 mice were survival. The survival rate was 87.1% except for accidental death during operation. The heart chamber expanded and ventricular wall became thin in myocardial infarction mice by eyes. After pathological sections were stained, by HE cardiac muscle fibers ruptured or lysed. There were some of necrosis of myocardiac cells and many of infiltration of inflammatory cells.

CONCLUSIONApplication of an improved tracheal intubation method simplified operation of tracheal intubation during preparation of myocardial infarction model in the mouse. The trauma was tinier than the other one, and achievement ratio of the model preparation was improved.

Animals ; Disease Models, Animal ; Intubation, Intratracheal ; methods ; Male ; Mice ; Myocardial Infarction

OBJECTIVETo evaluate the therapeutic effect of Compound Xuanju Capsule (CXC) on autoimmune prostatitis in rat models.

METHODSSixty healthy male Wistar rats were randomly divided into five groups of equal number: blank control, low-concentration purified prostate protein (low-conc PPP), low-conc PPP + CXC treatment, high-concentration PPP (hi-con PPP), and hi-conc PPP + CXC treatment. Autoimmune prostatitis models were established by intragastric administration of PPP solution at 15 mg/ml (low concentration) and 80 mg/ml, respectively. At 30 days after modeling, the rats in the blank control and low-conc and hi-conc PPP model groups were treated with normal saline, and those in the other two groups with CXC at a daily dose of 0.068 g/ml. At 30, 45, and 60 days, all the animals were sacrificed for observation of pathological changes in the prostate tissue and determination of the levels of IL-8, IL-10, and TNF-alpha in the serum.

RESULTSCompared with the PPP models, the hi-conc PPP + CXC group showed significantly reduced levels of IL-8 and TNF-alpha in the serum at 45 days ([148.54 +/- 17.23] and [62.14 +/- 5.59] pg/ml vs [100.77 +/- 11.08] and [32.63 +/- 2.91] pg/ml, P < 0.05) and at 60 days ([143.69 +/- 17.28] and [59.38 +/- 5.50] pg/mlvs [95.77 +/-10.53] and [29.63 +/- 2.66] pg/ml, P < 0.05), and so did the low-cone PPP + CXC group at 45 days ([128.47 +/- 12.21] and [40.43 +/- 3.64] pg/ml vs [111.76 +/- 10.07] and [35.44 +/- 3.17] pg/ml, P < 0.05) and at 60 days ([131.07 +/- 10.93] and [43.34 +/- 3.91] pg/ml vs [97.46 +/- 8.75] and [30.44 +/- 2.75] pg/ml, P < 0.05). The serum level of IL-10 was remarkably elevated in the hi-cone PPP + CXC group as compared with that of the PPP models at 45 and 60 days ([189.14 +/- 16.78] and [184.14 +/- 15.89] pg/ml vs [230.48 +/- 29.96] and [248.48 +/- 31.03] pg/ml, P < 0.05), and so was it in low-cone PPP + CXC group ([223.14 +/- 17.87] and [224.14 +/- 17.93] pg/ml vs [231.42 +/- 23.18] and [249.42 +/- 24.97] pg/ml, P < 0.05). Pathological examination revealed morphological damages to the prostate tissue and infiltration of inflammatory cells in the model rats, but no obvious changes in the normal controls. At 15 days of treatment, the rats in the PPP + CXC group showed enlarged prostate glandular cavity, mild proliferation of epithelial cells, no obvious infiltration of inflammatory cells in the interstitial tissue, and a few visible fibrous tissues under the light microscope.

CONCLUSIONCompound Xuanju Capsule is efficacious on autoimmune prostatis in rats by reducing inflammatory changes in the prostate tissue and improving the expression of inflammatory factors.

Animals ; Autoimmune Diseases ; blood ; chemically induced ; drug therapy ; Capsules ; Interleukin-10 ; blood ; Interleukin-8 ; blood ; Male ; Prostatic Hyperplasia ; pathology ; Prostatic Secretory Proteins ; Prostatitis ; blood ; chemically induced ; drug therapy ; Random Allocation ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha ; blood

OBJECTIVETo establish a rat model of autoimmune prostatitis using purified prostatic proteins (PPP).

METHODSThirty-six male Wistar rats were randomized into three groups of equal number to receive intramuscular injection of normal saline (normal control group) and PPP at 15 mg/ml (low-concentration group) and 80 mg/ml (high-concentration group). At 4 weeks after modeling, the rats were sacrificed for HE staining of the prostate tissue and examination of the inflammatory factors IL-8 and IL-10 in the serum, immunoglobulins IgA and IgM, and regulatory T cells Th1/Th2.

RESULTSThree rats died in the high-concentration PPP group but none in the low-concentration PPP and normal control groups. Gross observation of the prostate showed increased volume and hard texture of the prostate in the two PPP groups, but no significant change in the normal controls. Pathological examination exhibited morphological damage to the prostatic tissue and inflammatory cellular infiltration in the experimental rats. The serum level of IL-8 was significantly higher in the low- and high-concentration PPP groups ([129.07 +/- 11.48] and [147.58 +/- 17.70] pg/ml) than in the control ([94.12 +/- 7.04] pg/ml) (P < 0.05), while that of IL-10 was remarkably lower in the former two groups ([227.14 +/- 18.19] and [187.14 +/- 16.32] pg/ml) than in the latter ([252.48 +/- 21.72] pg/ml, P < 0.05). The serum level of IgA was markedly elevated in the low- and high-concentration PPP groups as compared with that in the control ([0.25 +/- 0.37] and [0.31 +/- 0.42] vs [0.19 +/- 0.14] mg/ml, P < 0.05), and so was that of IgM ([0.23 +/- 0.41] and [0.34 +/- 0.58 ] vs [0.17 +/- 0.33] mg/ml, P < 0.05). No significant changes were observed in the levels of regulatory T cells Th1/Th2.

CONCLUSIONBoth low and high concentrations of purified prostatic proteins can be used for the construction of autoimmune prostatitis models in rats, while low concentration is preferable for its advantages of lower mortality of the rats and inducement of more consistent manifestations of autoimmune prostatitis.

Animals ; Autoimmune Diseases ; blood ; chemically induced ; pathology ; Disease Models, Animal ; Humans ; Interleukin-10 ; blood ; Interleukin-8 ; blood ; Male ; Prostatic Secretory Proteins ; administration & dosage ; pharmacology ; Prostatitis ; blood ; chemically induced ; pathology ; Rats ; Rats, Wistar

OBJECTIVEMultiple sclerosis is a demyelinating disease frequently showing a relapsing-remitting disease course. Clinical manifestations of 25 inpatients with MS were summarized and analyzed so that the clinical features and therapeutic approaches to childhood multiple sclerosis (MS) were investigated in order to improve its diagnosis and management.

METHODSClinical features and information during following-up of 25 cases with MS from June 1993 to May 2006 were collected and analyzed.

RESULTSAmong the 25 cases, 16 were female and the F:M ratio was 1.78:1. The relapsing-remitting type was seen in 21 cases, the secondary progressive MS in 3 cases and the classification was impossible in one case. The mean age of onset was 6.7 years (2-12) with various initial symptoms including visual loss (11 cases), cortical symptoms (8 cases with seizures, consciousness disturbance, aphasia and apraxia, etc.), myeleterosis (3 cases), symptoms of brainstem (2 cases) and cerebellar ataxia (1 case). Fever was present in 10 cases at the onset. Nine cases were monosymptomatic, while the other 16 had multiple symptoms. Visual loss occurred in 19 cases during the course of MS and 22 were found to have abnormal visual evoked potential (88%). The mean course of disease was 8.5 years (1.2-17.2) and 0-4 times of recurrences (0 means no new clinical attack occurred during following-up period).

CONCLUSIONSMS is increasingly recognized as a disease affecting children though it is uncommon. Childhood MS possesses some manifestations different from those of adults. There was a female predominance. The most common finding at the onset of disease was optic neuritis. Other features include acute onset and shorter course of disease. Atypical demyelinating symptoms were often seen. White matter lesions on MRI are required for the diagnosis. CSF oligoclonal bands could be found less commonly than in adults. Neurological sequelae were less often seen than in adults MS even though optic nerve atrophy and visual loss were relatively common. Steroid and IVIG are effective in acute period treatment.

Age of Onset ; Child ; Child, Preschool ; Demyelinating Diseases ; etiology ; Disease Progression ; Female ; Humans ; Immunoglobulins, Intravenous ; immunology ; Male ; Multiple Sclerosis ; immunology ; physiopathology ; therapy ; Optic Neuritis ; etiology ; immunology ; Secondary Prevention

OBJECTIVETo study the pathogenesis and treatment of gluteal heterotopic ossification caused by injection.

METHODSFrom April 2006 to May 2011, 4 old female patients with gluteal heterotopic ossification caused by injection were treated by resection. The average age was 71 years old ranging from 67 to 76. The illness were bilateral,the clinical character was pain and hard nodules in the both hip. The X-ray, CT and pathology matched the diagnosis of heterotopic ossification. Two of them were treated by totally removing the ossified tissues, and loosing the spastic and adhesive soft tissues. The other two were treated with local resection and soft-tissue lysis.

RESULTSThe wound of all patients healed well, and there were no complication. All patients were followed-up from 2 to 64 months(averaged 26 months). There were no lump and pain in the location of surgical resection.

CONCLUSIONGluteal heterotopic ossification caused by injection is the drug reaction produced by injecting benzyl alcohol or other drugs,and happens in adults. The key for the treatment is to remove part or all of the painful lump,and loose the local fascia and other soft tissues of the gluteal muscles.

Aged ; Buttocks ; Female ; Humans ; Injections, Intramuscular ; adverse effects ; Ossification, Heterotopic ; etiology ; surgery

OBJECTIVETo analyse the relationships among HBV genotypes, HBV DNA levels and histopathological features of the livers of familial grouped hepatitis B patients in the Tianjin area.

METHODSOne hundred familial grouped hepatitis B (CHB) patients were enrolled in this study. Thirty-five of the 100 patients were chronic asymptomatic HBsAg carriers (ASC) and 65/100 were mild CHB patients. Their HBV genotypes and HBV-DNA levels were detected and liver biopsies were performed for analyzing the pathological features.

RESULTSSeven patients were of HBV genotype B (7%), and most of them had a HBV DNA level in the middle 10(3-5) copies/ml (57.14%). The histopathological features of the livers were of different degrees of injury. Eleven patients HBV was of genotype BC (11%); their HBV DNA levels were from 10(3-5) copies/ml (45.45%) to 10(6-7)copies/ml (36.36%). Their liver pathology showed slight or severe injuries (< or = G2 90.91%, < or = S(2) 81.82%). Eighty-two patients HBV was of genotype C (82%), and among the 82, 29 were ASC and 53 were CHB. Among the ASC, most of them had a high HBV DNA level (72.41%), and all of them had different degrees of liver injury. Among the CHB, their HBV DNA levels were 10(6-7) copies/ml (39.62%) and more than or equal 10(8) copies/ml (49.06%). The liver histopathological features were > or = G(2) in 38 patients (71.70%), and > or = S(2) in 25 patients (47.17%).

CONCLUSIONS(1) In the majority, HBV of the family gathered hepatitis B patients living in Tianjin is of genotype C and they have a high HBV-DNA level and severe liver pathological injuries. These features of the family gathered hepatitis B patients are the main factors causing the unfavorable prognosis of the patients. (2) There is inflammation of different degrees in the livers and high HBV DNA levels in all the family gathered ASC patients. Antiviral therapy should be planned according to the pathological features in patients livers. (3) Liver biopsies should be performed routinely before their antiviral therapy.

Adolescent ; Adult ; Aged ; Asian Continental Ancestry Group ; genetics ; DNA, Viral ; Female ; Genotype ; Hepatitis B virus ; genetics ; physiology ; Hepatitis B, Chronic ; genetics ; pathology ; virology ; Humans ; Liver ; pathology ; virology ; Male ; Middle Aged ; Pedigree ; Viral Load ; Young Adult

Objective: To evaluate the prognostic significance of minimal residual disease (MRD) monitoring by 10-color flow cytometry in multiple myeloma (MM) patients after treatment. Methods: 150 patients with MM who were admitted to the First Affiliated Hospital of Soochow University from July 2015 to July 2017 were retrospectively analyzed. Clinical data, MRD data monitoring by 10-color flow cytometry and prognosis were analyzed. Results: 39.1% (34/87) patients were MRD negative after induction chemotherapy, and 49.3% (34/69) patients were MRD negative within 1 year after autologous hematopoietic stem cell transplantation (ASCT) . MRD-negative patients after induction chemotherapy or after transplantation have better progress-free survival (PFS) than MRD-positive patients (P=0.022 and P<0.001) . According to the changes of MRD pre-ASCT and after ASCT, the patients were divided into 4 groups: patients with MRD continued negativity,improved from MRD positive to MRD negative, MRD continued positivity, transformed from MRD negative to MRD positive. The two-year PFS of the four groups were 83%, 82%, 44%, 0, respectively, (P=0.002) . Multivariate analysis showed that the level of MRD after induction chemotherapy was an independent factor for PFS (P=0.002) , HR=4.808 (95%CI 1.818-12.718) . Conclusion: Patients with MRD negative after treatment is a better prognosis marker than complete remission or even the best marker, which can evaluate prognosis by combining R-ISS and cytogenetic changes.
Flow Cytometry ; Humans ; Multiple Myeloma/diagnosis* ; Neoplasm, Residual ; Prognosis ; Retrospective Studies ; Transplantation, Autologous

BACKGROUNDStreptococcus pneumoniae (S. pneumoniae) is a major causative agent of severe infections, including sepsis, pneumonia, meningitis, and otitis media, and has become a major public health concern. We report the pneumococcal serotype and sequence type (ST) distribution, and antimicrobial resistance of 39 S. pneumoniae strains from seven hospitals in China.

METHODSBlood/cerebrospinal fluid (CSF) and sputum isolates from patients were analyzed to determine S. pneumoniae serotypes by polymerase chain reaction (PCR) and the Neufeld Quellung reaction, the multilocus sequence types (MLST) by PCR and sequencing, and susceptibility to antimicrobial agents by the VITEK Gram Positive Susceptibility Card.

RESULTSA total of 39 isolates were collected including 21 blood/CSF and 18 sputum isolates. Conventional serotyping by the Quellung reaction required 749 reactions. In contrast, PCR based typing needed only 106 PCR reactions. The most frequent serotypes from the blood/CSF isolates were 14 (38.1%), 19A (14.3%), 23F (9.5%), and 18C (9.5%). In the sputum isolates the most frequent serotypes were 19F (33.3%), 23F (16.7%), 19A (11.1%), and 3 (11.1%). The incidence of penicillin resistance in the blood/CSF and sputum isolates was 66.7% and 55.6%, respectively. Statistical analysis showed that patients = 5 years old had a higher resistance to penicillin when they compared with the patients = 65 years old (P = 0.011). Serotypes 14, 19A and 19F were significantly associated with penicillin resistance (P < 0.001). ST320, ST271, and ST876 isolates showed high resistant rates to several antibiotics including penicillin (P = 0.006). All of the isolates of serotype 19A were resistant to both penicillin and erythromycin, and they were all multi-drug resistant (MDR) isolates.

CONCLUSIONSThe specificity and sensitivity of multiplex-PCR are good, and this method represents a substantial savings of time and money, and can be widely used in the laboratory and clinical practice. Data from this research showed an extremely high prevalence of penicillin resistance and an increasing prevalence of multi-drug resistant (MDR) rate in S. pneumoniae. A distinctive emergence of serotype 19A was observed which was also associated with the increasing prevalence of antimicrobial resistance. Therefore, nationwide surveillance of pneumococcal resistance and serotypes is strongly warranted.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Drug Resistance, Multiple, Bacterial ; Humans ; Infant ; Microbial Sensitivity Tests ; Middle Aged ; Molecular Typing ; methods ; Multilocus Sequence Typing ; methods ; Pneumococcal Infections ; microbiology ; Serotyping ; Streptococcus pneumoniae ; classification ; drug effects

Acute respiratory tract infection is the most common infectious disease in children, which seriously threatens children′s health.Rapid and accurate etiological diagnosis is of great significance for the clinical treatment and control of these diseases.Pathogen nucleic acid test was applied and became the main method of respiratory tract infection diagnosis for its high sensitivity and specificity.To regulate the application of pathogen nucleic acid amplification test in respiratory tract infection in children, improve the diagnosis level, expert consensus on nucleic acid amplification test of respiratory pathogens in children was prepared to guide the application and promote pathogens diagnosis ability.