Objective Attenuated strains of Shigella are attractive live vaccine candidates for eliciting mucosal immune responses which is a suitable carrier for the prophylactic human papillomaviruses (HPV) vaccine development, To examine the potential of a live Shigella based prophylactic HPV vaccine, HPV16L1should be expressed in attenuated shigella strain. Methods A Shigella large invasive plasmid (icsA/virG) based prokaryotic expression plasmid pHS3199 was constructed. HPV16L1 gene was inserted into plasmid pHS3199 to form pHS3199-HPV16 L1 construct, and pHS3199-hpv16L1 was electroporated into a live attenuated shigella strain sh42. The expression of HPV16L1 protein was demonstrated by Western blotting with monoclonal antibody to HPV16L1, The genetic stability of recombinant strain sh42-HPV16 L1 was monitored by consecutive passage culture. Invasive ability of sh42-HPV16L1 was evaluated by Hela cell infection assay. Results HPV16 L1 protein can be expressed in recombinant strain sh42-HPV16 L1, and the protein stably expressed over 140 generations. The invasive ability of sh42-HPV16L1 was diminished dramatically compared to its parent strain, but not abolished completely. Conclusion HPV16L1 protein was constitutively expressed in the attenuated strain of shigella flexneri sh42, and maintained partial invasive ability. Our strategy may represent a promising vaccine candidate against genital HPV16 infection.

Siegesbeckia pubescens (SP) has been used as a traditional medicine for the treatment of and inflammatory diseases.However,the activities of SP against hepatocellular carcinoma and the related mechanisms remain unclear.The present study aimed to examine the effects of the essential oil of SP (SPEO) on the proliferation of hepatocellular carcinoma cells and the possible mechanisms.The growth inhibition of HepG2 cells was analyzed by MTT assay.Hoechst 33258 and fluorescence microscopy were utilized to observe the nuclear morphological changes of apoptotic cells.Flow cytometry was used to detect cell apoptosis and cell cycle.The expressions of the target proteins were detected by Western blotting.The results showed that SPEO obviously inhibited the proliferation of HepG2 cells in a dose-dependent manner.SPEO activated a series of apoptotic proteins in HepG2 cells,increasing expression levels of Bax,caspase-3 and caspase-9,and decreasing the bcl-2 expression level.SPEO displayed promising anti-hepatocellular carcinoma activities in vitro,partly by inducing apoptosis in HepG2 cells through activating the mitochondrial pathway.

OBJECTIVETo investigate the expression of long non-coding RNA HOTAIR in the plasma of breast cancer patients and its value in the diagnosis of breast cancer.

METHODSHOTAIR levels were measured in 24 tumor tissues and 70 plasma samples from breast cancer patients using quantitative real-time PCR. The correlations of plasma HOTAIR level with the clinicopathological features of the patients were analyzed. A multivariate logistic regression model was established to analyze the value of plasma HOTAIR in comparison with plasma CA153 and CEA levels for breast cancer diagnosis. We further detected HOTAIR levels in the plasma and breast cancer tissues of 24 patients before and after operation and investigated their correlation.

RESULTSBreast cancer patients had increased expressions of HOTAIR in the tumor tissues and plasma, and plasma HOTAIR level was significantly correlated with estrogen receptor (ER) level (P=0.004) and lymph node metastasis (P=0.010). Receiver operating characteristic (ROC) curve and the multivariable logistic regression model showed that the area under ROC curve (AUC) of plasma HOTAIR was 0.82 (P<0.001) for breast cancer diagnosis with a diagnostic sensitivity and a specificity of 73.3% and 93.3%, respectively. The diagnostic power and specificity of plasma HOTAIR was much higher than those of CA153 (AUC=0.66, P=0.030) and CEA (AUC=0.52, P=0.001), and the combination of the 3 markers further enhanced the diagnostic power (AUC=0.84) and specificity (96.7%). Plasma HOTAIR level was significantly reduced in the patients after the operation (P<0.0001) and showed a moderate correlation with its expression in tumor tissues (r=0.62, P<0.0001).

CONCLUSIONPlasma HOTAIR may serve as a potential biomarker for breast cancer diagnosis.

Biomarkers, Tumor ; blood ; Breast Neoplasms ; blood ; diagnosis ; Carcinoembryonic Antigen ; blood ; Female ; Humans ; Logistic Models ; Lymphatic Metastasis ; Mucin-1 ; blood ; Prognosis ; RNA, Long Noncoding ; blood ; ROC Curve ; Real-Time Polymerase Chain Reaction ; Receptors, Estrogen ; metabolism ; Sensitivity and Specificity

Adjuvants, Immunologic ; administration & dosage ; Administration, Intranasal ; Animals ; Antibodies, Viral ; blood ; Bacterial Toxins ; administration & dosage ; Capsid Proteins ; Enterotoxins ; administration & dosage ; Escherichia coli Proteins ; administration & dosage ; Female ; Hemagglutination Inhibition Tests ; Human papillomavirus 16 ; immunology ; Immunization ; Interferon-gamma ; biosynthesis ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Oncogene Proteins, Viral ; genetics ; immunology ; Papillomavirus Vaccines ; Vaccines, DNA ; administration & dosage ; immunology ; Viral Vaccines ; administration & dosage ; immunology ; Virion ; immunology

Objective:To explore the impact of graft recipient weight ratio(GRWR)on pediatric whole liver transplantation in infants aged under 1 year.Methods:From January 2014 to December 2019, clinical data were retrospectively reviewed for 140 children aged under 1 year with whole liver transplantation.They were divided into 3 groups of low GRWR(GRWR<2.5%, 48 cases), middle GRWR(2.5%≤GRWR<5%, 73 cases)and high GRWR(GRWR≥5%, 19 cases). Basic profiles, major postoperative complications and survival rate of graft/recipient were compared.Results:There were 62 males and 78 females with an average age of (7.34±1.81)months and an average weight of(6.81±1.09)kg.The median GRWR was 3.27%(1.33%~8.12%). The higher level of GRWR, the greater age, weight and graft weight of donor in three groups and there was statistical difference ( P<0.05); operative duration, postoperative ICU stay and hospital stay were longer in low GRWR group than those in middle GRWR group and there was statistical difference( P<0.05); The incidence of postoperative hepatic artery thrombosis was higher in low GRWR group than that in middle GRWR group(31.3%vs 8.2%)and there was statistical difference( P<0.05); 4 cases of small-for-size syndrome occurred in low GRWR group, it was significantly different from the other two groups and there was statistical difference( P<0.05); the median follow-up period was(50.7±23.4)months.The survival rates of grafts at 3-month and 1/5-year were 89.6%, 91.8%, 100%; 87.5%, 87.7%, 100%; 87.5%, 87.7%, 100%and there was no inter-group difference( P>0.05). The survival rates of recipients at 3 months, 1 year and 5 years post-operation were 93.8%, 91.8%, 100%; 91.7%, 87.7%, 100%; 91.7%, 87.7%, 100%and there was no inter-group difference( P>0.05). Conclusions:Different from pediatric living donor transplantation, GRWR≥5%does not affect the survival rate of recipient/graft during whole liver transplantation.And GRWR<2.5%may boost the postoperative incidence of hepatic artery thrombosis and small liver syndrome.

With retrieval in CNKI and MEDLINE data base, the articles in Chinese and English that were written by Chinese authors, which were about the specificity of acupoint effects during "the Eleventh Five-Year (2006-2010)", are included. Researchers have studied about the specificity of acupoint effects by cerebral function imaging technique and it turns out that from the perspective of central mechanism, there are differences among aupoint stimulatory effect. The curative effect of acupoints is significantly better than that of nonacupoints, different acupoints have different curative effects, the effect of disease-related acupoints is better than that of unrelated acupoints, those above have intitally proved the existence of specificity of acupoint effects. However, part of the research results need futher summaries, analysis and promotion as well as try to avoid low-level repeat in research design.
Acupuncture Points ; Acupuncture Therapy ; Databases, Bibliographic ; statistics & numerical data ; Electroacupuncture ; Humans ; Meridians ; Publications

Adult ; Anti-Inflammatory Agents ; therapeutic use ; Female ; Follow-Up Studies ; Hepatitis B e Antigens ; Hepatitis B, Chronic ; drug therapy ; Humans ; Male ; Phytotherapy ; Treatment Outcome

OBJECTIVEClinical transplantation evidence has been indicated that umbilical cord blood (UCB) can be useful in the hematopoietic reconstitution in the children, but can not be well in the adult hematopoietic transplantation because of the low count. This study was to evaluate a new method for collecting stem cells from human placenta and umbilical cord, and to comparatively analyze the similarity and difference of quality and quantity of the cells.

METHODSThe UCB was collected, in same time the placental tissue was sterily collected; the umbilical placenta was collected by perfusing the blood (UPB) cord arterial and venous vascules with 0.9% saline; the mesenchymal stem cells (MSC) from same source of umbilical cord and placental tissues were isolated and cultured. The cell colony assay and flow cytometry were performed to determine the proliferation capacities and cell markers of UMSC and PMSC.

RESULTSThe total nuclear cells (NC) and hematopoietic stem cells (CD34(+)) from UPB and UCB were (17.45 ± 16.86) × 10(8), (6.9 ± 4.61) × 10(8) and (2.97 ± 2.25) × 10(6), (1.91 ± 1.7) × 10(6), respectively. Furthermore, the UPB contained more early precursor of hematopoietic stem cells (CD33(+) CD34(-)) (6.2 ± 13.5) × 10(5), (0.2 ± 0.8) × 10(5) ; and high proportion of MSC to NC (25.21 ± 18.69, 0.05 ± 0.10)%, respectively in 62 samples. There were no difference of the MSC level in UPB and UCB, as well as in the morphology and cell markers.

CONCLUSIONUPB has rich hematopoietic stem cells and mesenchymal stem cells. Placenta may offer another source for hematopoietic stem cells in research of hematopoietic stem cells and regeneration medicine.

Adult ; Antigens, CD34 ; Cell Separation ; Female ; Fetal Blood ; Flow Cytometry ; Hematopoietic Stem Cells ; Humans ; Mesenchymal Stromal Cells ; Placenta ; Pregnancy ; Umbilical Cord

Pathological diagnosis of salivary gland tumors is one of the most challenging areas in all head and neck surgical pathology. The classification of salivary gland tumors was updated in the 5th edition of the World Health Organization Classification of Head and Neck Tumours, most of which were based on their molecular pathological characteristerics. This new classification features a description of several new entitiesamong benign and malignant neoplasms, salivary gland tumors with updated naming or diagnostic criteria, and lesions deleted from this section, etc.This present review focuses on the updates and changes in the new classification of salivary gland tumors, and provides some reference for head and neck surgeons and pathologists.
Humans ; Head and Neck Neoplasms ; Salivary Gland Neoplasms/pathology* ; Salivary Glands ; World Health Organization

BACKGROUND: Blood purification (BP) is one of the most important rescue measures for patients with critical illness in the intensive care unit (ICU), especially for those with acute kidney injury. The purpose of this nationwide survey was to reveal the real world of current BP practice in different ICUs all over China. This study was designed to be a multi-center cross-sectional study. METHODS: All adult patients (over 18 years of age), who were admitted to ICU and required BP in 35 sub-centers across China were included during 30-day survey period in 2018. Demographic characteristics and clinical data were recorded including the timing of treatment initiation, indications, modality, relative contraindication, establishment of vascular access, selection of filter/membrane, settings, anti-coagulation, executive department, complication, intake, and output. DISCUSSION: This nationwide survey may contribute to reveal the real world of current BP practice in different ICUs all over China. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR-EOC-17013119; http://www.chictr.org.cn/showproj.aspx?proj=22487.