The viable but noncuturable (VBNC) state is a survival strategy when bacteria are exposed to en- vironment stress. The VBNC state is part of the life cycle of non-differentiating bacteria, and it has a far-reaching impact on traditional bacteriology. Cells in the VBNC state fail to grow on the routine bacterio- logical media, here its significance in human health and environment science are detailed. Cells entering the VBNC state exhibit dwarfing and a number of metabolic changes in respiration rates and macromolecular synthesis. This paper summarized the variations in DNA and protein comparing to the culturable cells. We also discussed the ability of cells to resuscitate from the VBNC state and return to an actively metabolizing and culturable form. Some new methods for monitoring the VBNC state were listed. Finally the future was suggested.

Adult ; Ergonomics ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Musculoskeletal Physiological Phenomena ; Regression Analysis ; Workplace

Glioma ; pathology ; Humans ; Neoplastic Stem Cells ; pathology

Humans ; Occupational Exposure ; Risk Assessment ; Workplace

Air Pollutants, Occupational ; analysis ; Female ; Hexanes ; analysis ; poisoning ; Humans ; Male ; Occupational Exposure ; statistics & numerical data ; Shoes

Abstract?AlM:To analyze of the clinical features of acute retinal pigment epitheltis ( ARPE) .?METHODS: The clinical data of 36 ARPE patients ( 40 eyes) attending this center from January 2008 to January 2014 were reviewed retrospectively. Of them, 21 patients (58.3%) were male (male :female=1:0. 71). The mean age was 40. 92±7. 13 years old (range:17~60y). The mean best-corrected visual acuity (BCVA) was 0. 50±0. 26 with a range of 0. 3 ~ 1. 0. Thirty-two patients were unilateral cases. All the patients were examined for BCVA, funds photography, fluorescein fundus angiography ( FFA ) , optical coherence tomography ( OCT) . FFA was shown as three types: type ▏ to multiple black light or grape variety fluorescent spot; Type II for l lesions visible fluorescence leakage; Type Ⅲ lesions with choroid neovascularization ( CNV ) . OCT was the following three forms: multiple RPE lesions layer reflection intermittent, proliferation ( type ▏); pigment epithelial detachment with limitations neural epithelium ( typeII);types l and ll with CNV ( type Ⅲ) .?RESULTS: Ocular fundus showed that the lesions were multiple dark-gray spots with a dark circumscribed area at the macular or nearby in all 40 eyes. FFA showed:21 eyes were type ▏, 17 eyes were type II and 2 eyes were typeⅢ, BCVA between type ▏ and type II was statistically significant (P<0. 05), the same was between type 芋. BCVA between different cases in the same type and between type II, Ⅲ, was no statistical difference ( P>0. 05). OCT showed 21 eyes wwere type ▏, 17 eyes were type II and type Ⅲ 2 eyes. BCVA average between type▏ andIIwas statistically significant (P<0. 05). The mean BCVA was no statistically significant difference between type II and Ⅲ patients (P>0. 05).?CONCLUSlON:ARPE fundus demonstrated the multiple dark gray discrete lesions, the degree of visual impairment related with the presence of pigment epithelial barrier and lesion location. OCT and FFA characterized three types. FFA is shown asblack light orgrape variety fluorescent spot, and is the basis of diagnosis. OCT can display the lesions organization form of each layer clearly. lt plays a more and more important role in the diagnosis and differential diagnosis of ARPE.

16M?) ). Using this method could not only avoid the interference of medium on the chromatographic behavior of Ralstonia solanacearum, but also keep the cell viability and cell surface properties.

Objective To investigate the relationship between expression of surfactant protein B (SP-B) gene product and neonatal respiratory distress syndrome (NRDS) in Han ethnic group.Methods Unrelated 20 cases with NRDS of Han ethnic group were selected as NRDS group while unrelated 20 cases of Han ethnic group with other diseases were selected as a control. The cases in the control group had congenital heart disease or bronchopulmonary dysplasia or persistent pulmonary artery hypertension. Blood sample was taken from each case. Lung tissues were taken from the patients in half an hour after their death in the two groups. Expression of SP-B in the lung tissues was determined with immunohistochemical technique. Genetic deficiency variant of SP-B intron Ⅳ was screened with polymerase chain reaction (PCR).Results Two cases at gestational age of 26 weeks, one at 34 weeks and two at 42 weeks in the NRDS groups had lower expression level of SP-B in the lung tissues than those at the same age in the the control group. Expression of SP-B in the lung tissues of the control group increased with gestational age, but no such phenomenon was found in NRDS group. Further two cases at gestational age 42 weeks of NRDS group had genetic deficiency variant of SP-B intron Ⅳ with gene analysis of five cases who had lower expression of SP-B. Clinical data suggest that patients at 42 weeks of gestational age had severe illness.Conclusion Decrease of SP-B expression may be involved in occurrence of NRDS, genetic deficiency variant of SP-B intron Ⅳ exists in NRDS cases of Han ethnic group of China.

Human xanthine oxidase is considered to be a target for therapy of hyperuricemia. Cichorium intybus is a Chinese plant medicine which widely used in Xinjiang against various diseases. In order to screen the inhibitors of xanthine oxidase from C. intybus and to explore main pharmacological actions of cichory a compound collection of C. intybus was built via consulting related references about chemical research on cichory. The three-dimensional crystal structure of xanthine oxidase (PDB code: 1N5X) from Protein Data Bank was downloaded.. Autodock 4.2 was employed to screen the inhibitors of xanthine oxidase from cichory 70 compounds were found to possess quite low binding free energy comparing with TEI (febuxostat). C. intybus contains constituents possessing potential inhibitive activity against xanthine oxidase. It can explain the main pharmacological actions of cichory which can significantly lower the level of serum uric acid.
Chicory ; chemistry ; Databases, Protein ; Drugs, Chinese Herbal ; chemistry ; Enzyme Inhibitors ; chemistry ; Humans ; Molecular Docking Simulation ; Molecular Structure ; Xanthine Oxidase ; antagonists & inhibitors ; metabolism

Abdomen ; surgery ; Cutaneous Fistula ; etiology ; therapy ; Female ; Humans ; Infant ; Infant, Newborn ; Intestinal Fistula ; etiology ; therapy ; Male ; Postoperative Complications ; etiology ; therapy ; Retrospective Studies