2.The expression and significance of VIP and its receptor in the cochlea of different degrees of chronic alcoholism rats.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(14):1295-1298
OBJECTIVE:
To determine whether chronic alcoholism alters the expression levels of Vasoactive intestinal polypeptide (VIP) and its receptor (VIPR1) in the cochlea of chronic alcoholism rats.
METHOD:
We measured their expression levels in 30 SD rats, in which we created models of different degrees of chronic alcoholism. We investigated the presence of the mRNA of VIP in the cochlea of chronic alcoholism rats and controls by reverse transcription-polymerase chain reaction (RT-PCR) method. We investigated the presence of proteins of VIPR1 in poisoned rats and controls by western blot. We also evaluated the local distribution of VIP cells by immunohistochemistry.
RESULT:
We found that the levels of VIP and VIPR1 were downregulated in the chronic alcoholism groups compared to the controls group. The differences in some expression levels were significant different between chronic alcoholism rats and control rats. Moreover, at different degrees of alcohol poisoning in rats, the contents of VIP and VIPR1 differed. Decreased levels of VIP and VIPR1 were detected in the deep chronic alcoholism group compared to the group with low-degree poisoning (P < 0.05). In spiral ganglion cell plasm the expression of VIP and VIPR1 had no significant difference in three groups (P > 0.05).
CONCLUSION
These results suggest that VIP and VIPR1 play an important role in the auditory function in rats with chronic alcoholism. Chronic alcoholism may cause a peptide hormone secretion imbalance in the auditory system, eventually leading to hearing loss.
Alcoholism
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metabolism
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Animals
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Cochlea
;
metabolism
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Disease Models, Animal
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Down-Regulation
;
RNA, Messenger
;
Rats
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Rats, Sprague-Dawley
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Receptors, Vasoactive Intestinal Polypeptide, Type I
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metabolism
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Spiral Ganglion
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Vasoactive Intestinal Peptide
;
metabolism
3.Associations of JAK1 gene polymorphisms with allergic rhinitis in Chinese Han populations.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(19):1713-1722
OBJECTIVE:
The aim of this study was to investigate the association of JAK1 polymorphisms with allergic rhinitis in China Han population.
METHOD:
A total of 450 patients with AR and 615 healthy subjects as control were genotyped for the presence of three single nucleotide polymorphisms using polymerase chain reaction restriction fragment length polymorphism (PGR-RFLP) analysis of DNA extracted from blood samples.
RESULT:
All control subjects were in Hardy-Weinberg equilibrium, but high frequencies of JAK1 the homozygous rs310241 CC genotype were observed in AR patients compared to controls (P < 0.05). The results also revealed that there was no association between the rest of two investigated SNPs and AR.
CONCLUSION
Our results suggested that JAK1 gene rs310241 CC genotype was associated with patients with AR.
Asian Continental Ancestry Group
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genetics
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China
;
Genetic Predisposition to Disease
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Genotype
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Humans
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Janus Kinase 1
;
genetics
;
Polymerase Chain Reaction
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Polymorphism, Restriction Fragment Length
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Polymorphism, Single Nucleotide
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Rhinitis, Allergic
;
genetics
4.Problems and Countermeasures on Medical Equipments Purchasing and Centralized Bidding
Chinese Medical Equipment Journal 1989;0(03):-
The many difficult problems in the course of actual operation are introduced in more than 5 years with governmental centralized procurement of medical equipment. By aiming at specificity of medical equipment that is a relative specialized material and applying existing laws and regulations system, the more scientific and operational solutions are found.
5.Congenital nephrotic syndrome combined with skull dysplasia: case report and literature review
Jing LIU ; Ruihong TANG ; Zhichun FENG
Chinese Journal of General Practitioners 2008;7(11):782-784
A case of congenital nephrotic syndrome (CNS) combined with skull dysplasia was confirmed based on clinical findings, laboratory examination and skull CT scan. Hereditary features, clinical manifestations, treatment and prognosis of CNS were reported in this paper after literatm'e review.
7.Effects of transcranial magnetic stimulation on the recovery of neurological function and the expression of neurofilament protein in rats with cerebral infarction
Jing LIU ; Heqing ZHAO ; Feng YU
Journal of Clinical Neurology 2001;0(05):-
Objective To investigate the effects of transcranial magnetic stimulation(TMS)on the recovery of neurological function and the expression of neurofilament protein(NFP)-200 in rats with cerebral infarction.Methods The string-fastening method was used to establish focal ischemia-reperfusion models in 60 Sprague-Dawley rats and the rats were divided into the TMS group and the sham TMS group(composed of 30 rats each).Then each group were divided into the treated 1 d,3 d,7 d,14 d and 21 d subgroups(composed of 6 rats each).TMS group rats were administered with 2 sessions of TMS(200 pulses total)daily,keeping on corresponding days in different groups.The recovery of neurological function and the optical density of NFP-200 by immunohistochemistry in the infarct peripheral zone in two groups were detected after therapy.Results At the 14 d and 21 d after treatment,neurological deficit scores of TMS group(2.67?0.82,1.50?0.55) were significantly lower than those of the sham TMS group(3.67?0.52,3.17?0.75)(P
8.The study on perfusion flow of cardiopulmonary bypass during acute Stanford type A aoritc dissection procedure
Feng LIU ; Jing YANG ; Peiqing DONG
Chinese Journal of Thoracic and Cardiovascular Surgery 2014;30(6):338-341
Objective To research the reasonable perfusion flow of cardiopulmonary bypass during aortic arch procedure of patients with acute type A aortic dissection.Methods Forty patients suffered from acute Stanford type A aortic dissection had been divided into two groups randomly.Group A named traditional perfusion flow group,group B named modified perfusion flow group.Monitoring cerebral blood flow and cerebral tissue oxygen during deep hyperthermia circulatory arrest and antegrade aelective cerebral perfusion procedure by transcranial doppler(TCD) and near-infrared spectroscopy(NIRS).The concentration of S100 protein and lactic acid was measured at six time point.Results Statistical difference of mean blood flow velocity of MCA had been found between two group 3 min after total flow reperfusion.TOI was more tban 60% during study in both of groups.S100 protein in group A was significantly higher than group B at T6,T7 and T8.Statistical difference of blood lactic concentration had been found between two groups,(4.88± 1.62) mmol/L in group A,(3.83± 1.48) mmol/L in group B,P < 0.05.Safe consciousness time between two groups was difference,(7.36± 2.86) h in group A and (5.27± 3.11) h in group B,P < 0.05.Conclusion Compared with the traditional perfusion flow,modified perfusion flow can provide sufficient cerebral perfusion and prevent the luxury perfusion.
9.Reflection on the Legal Issues of the Pooled Medicines Procurement
Feng JIANG ; Jing SUN ; Yuanli LIU
China Pharmacy 2017;28(18):2449-2452
OBJECTIVE:To provide policy recommendations for improvement of the pooled medicines procurement policy through legal analysis. METHODS:The pooled medicines procurement policies in China were reviewed and compared with related laws and regulations to analyze the problems and put forward recommendations. RESULTS:For the pooled medicines procurement policy,there were several conflicts between it and the Bidding Law,Government Procurement Law,Anti-monopoly Law and An-ti-unfair Competition Law. In terms of the pooled medicines procurement institution,there were conflicts between it and Bidding Law,Government Procurement Law. In terms of the price-volume linkage and the main body of tendering,there were conflicts be-tween it and the Bidding Law. In terms of the organization and participants,there were conflicts between it and the Anti-monopoly Law and Anti-unfair Competition Law. CONCLUSIONS:The pooled medicines procurement system should rationalize the main body of tendering,insist on volume secured procurement and price-volume linkage,establish reasonable incentive mechanism through supporting heath system reform policies,eatablish and perfect modern government principles in the field of medicines regulation. The pooled drug procurement policy should be moderately adjusted to follow the above laws in order to raise the procurement efficiency.
10.Investigation on Mobile Phone Based Thermal Imaging System and Its Preliminary Application.
Fufeng LI ; Feng CHEN ; Jing LIU
Chinese Journal of Medical Instrumentation 2015;39(3):173-176
The technical structure of a low-cost thermal imaging system (TIM) lunched on a mobile phone was investigated, which consists of a thermal infrared module and mobile phone and application software. The designing strategies and technical factors toward realizing various TIM array performances are interpreted, including sensor cost and Noise Equivalent Temperature Difference (NETD). In the software algorithm, a mechanism for scene-change detection was implemented to optimize the efficiency of non-uniformity correction (NUC). The performance experiments and analysis indicate that the NETD of the system can be smaller than 150 mK when the integration time is larger than 16 frames. Furthermore, a practical application for human temperature monitoring during physical exercise is proposed and interpreted. The measurement results support the feasibility and facility of the system in the medical application.
Algorithms
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Body Temperature
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Cell Phone
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Humans
;
Infrared Rays
;
Mobile Applications