1.Study on Toxic Action on Testis and Epididymides of Mature Male Mice by Isophorone Diisocyanate and Its Mechanism
Zijun WU ; Jinpeng ZHOU ; Jianwei DU
Journal of Environment and Health 1992;0(05):-
0.05).Compared with the control group,the weight and viscera coefficient of testis in high dosage group,the sperm counts of epididymides in medium and high dosage experiment groups were all decreased significantly(P0.05).The activities of succinate dehydrogenase(SDH) and nitric oxide synthase(NOS) of testis in high dosage group,the activities of acid phosphatase(ACP),alkaline phosphatase(AKP) and Ca-Mg-ATPase of testis in medium and high doseage groups were all decreased significantly compared with the control group(P
2.Study of Concentration of Urinary Cadmium and Serum Sex Hormone in Cadmium-exposed Male Workers
Zijun WU ; Jinpeng ZHOU ; Qianlan LI
Journal of Environment and Health 1989;0(06):-
Objective To evaluate the concentration of urinary cadmium and serum sex hormone in cadmium-exposed male workers and explore the affecting factors and related mechanism.Methods The individuals exposed to cadmium from three workshops 40 in each, in a cadmium rechargeable battery manufacture plant were selected as the exposure groups according to concentrations of cadmium oxide in the workplace in November 2008, namely assembly, charging and butt-weld workshop for low, moderate and high dosage group.Another forty male workers without cadmium exposure of the same plant were selected as the control group.Urinary cadmium, serum testosterone,FSH and LH concentrations were measured and urinary cadmium concentration abnormity rate was calculated for the following analysis.Results Compared with the control group, the urinary cadmium concentration and its abnormity rate of the low and high dosage groups were all significantly increased(P9 years groups were all significantly increased(P
3.The clinical analysis of patients aged ≥ 80 years with hospital infection of mycotic pneumonia
Chun ZHOU ; Yuquan WU ; Jinpeng ZHANG ; Yun ZHENG ; Xiaojun LU
Chinese Journal of Geriatrics 2012;31(9):771-773
Objective To analyze the clinical characteristics of hospital acquired mycotic pneumonia in elderly patients (aged≥ 80 years).Methods The clinical data were reviewed on 64 cases of elderly patients aged 80-93 years with hospital-acquired infection of mycotic pneumonia from June 2007 to July 2011.According to the results of sputum culture,therapy plan was made and antibiotic drugs were selected.Results Among these 64 patients,Candida mycoderma (62.5 %,40 cases) occupied the first place and C.glabrata (20.3%,13 cases) was the second place (x2 =127.50,P<0.01).Their chest x-ray or CT films were not characteristic,but lamellar shadows (68.8%,44cases) and cotton-like shadows (40.6 %,26 cases) were found in the majority.60 cases (93.8 % ) of these patients had more than 3 complications,and 58 cases (90.6%) of them took over 2 kinds of antibiotics.The improvement rate of these patients was 81.3% (52 cases)and mortality rate was 18.8%(12 cases).Conclusions Elderly patients (aged≥ 80 years) with hospital acquired infection of mycotic pneumonia have high incidence and mortality rate.The key point to cure is to make an early diagnosis and treat them as early as possible.
4.A design of a prototype of traditional Chinese medicine nasal atomizer device
Liang TIAN ; Jinpeng WU ; Xiaoxi DONG ; Zhiyong GONG
International Journal of Biomedical Engineering 2014;37(3):163-166
Objective Nasal administration,as a common means of treatment of respiratory diseases,may normally cause bronchospasm,cough and other adverse reactions,the efficiency of nasal nebulizers has been criticized as well.This paper aims to develop a medicine atomizing device,pharmaceutically atomized in solving the existing problems,providing a modern instrument for treatment of respiratory diseases by traditional Chinese medicine.Methods The device could prepare medicine by decoction and filtration,which means this unit is divided into two functional modules,medicine preparation and herbal atomization.1 200 W heating plate is placed in decoction unit and is programmed to fit traditional decoction protocol.Steam and ultrasonic nebulised medicine are combined in atomizing unit.Another non-contact infrared heating unit also located in to control the temperature precisely.Different forms of traditional Chinese medicine and different filtration methods were selected to optimize the atomizing effect.Results An implementation of two sequence of filtration enabled optimization of atomizing.After 15 volunteers'trial,this device functioned well on Bama nasal medical protocol,and could effectively avoid the adverse reactions of the traditional way of cold fog atomizing.Conclusions The nasal nebulizer equipment on which Chinese herbal medicine treatments could directly performed,produced atomized mist particle size suitable for nasal treatment,and by generating warm steam to avoid the common clinical administration caused choking to hypoxia and other adverse reactions.Meanwhile,instrument has a friendly interactive feature to meet the clinical requirements for medicine nebulizer treatment.
5.Research progress on the mechanism and application of laser acupuncture and moxibustion
Hengyong LV ; Zhen LI ; Zhiyong GONG ; Jinpeng WU
International Journal of Biomedical Engineering 2015;38(6):-
This review introduces the mechanism and advantages of laser acupuncture and moxibustion, the biological effect of low-level laser, the characteristics of acupuncture point area and the experimental laws of biological effect.On this basis, the existing problems in clinical application of laser acupuncture and laser acupuncture apparatus are pointed out.The combination therapy method with various wavelength are also discussed, and future development directions in the study are prospected.
6.Research progress on imageology of myofascial pain syndrome
Zhen LI ; Xiuxiang TAN ; Jinpeng WU ; Yingxin LI
International Journal of Biomedical Engineering 2016;39(6):382-387,后插4,封3
Myofascial pain syndrome (MPS) is a common skeletal muscle pain and dysfunction,characterized by the presence of myofascial pain points (MTrPs).At present,the main method of locating MTrPs is palpation which has lower intra-rater reliability,and lacks an objective evaluation approach for therapeutic effects.Therefore,the research on objective evaluation of the characteristics of MPS has been receiving great attention.These studies involve stiffness of trigger points,fascia thickness,surface temperature and other aspects through various methods,such as ultrasonic imaging,magnetic resonance imaging,infrared thermal imaging.In this paper,the research progress and methods of MPS in imaging were surveyed,which can provide the basis for the clinical diagnosis and objective evaluation of therapeutic effects.
7.Simutaneous Determination of Three Anthraquinone Components in Knoxia Valerianoides by HPLC
Chenjun WU ; Jialin WANG ; Jinpeng CHENG ; Jing ZHAO ; Yan LI
China Pharmacist 2017;20(6):1120-1122
Objective: To develop an HPLC method for the simultaneous determination of 3 anthraquinones components in Knoxia valerianoides.Methods: The separation was performed on a Waters Xbridge C18column(250 mm×4.6 mm,5 μm), the mobile phase A was 0.05% phosphoric acid, and acetonitrile served as the mobile phase B, and the analysis was with gradient elution;the flow rate was 1.0 ml·min-1;the detection wavelength was 280 nm;the column temperature was 30℃.Results: The linearity of lucidin, 3-hydroxymorindone and knoxiadin was 0.147-29.400 μg·ml-1 (r=0.999 6), 0.126-25.200μg·ml-1 (r=0.999 9) and 0.135-27.000μg·ml-1 (r=0.999 5), and the average recovery was 98.50%(RSD=1.20%), 98.72%(RSD=0.73%) and 101.10%(RSD=1.12%)(n=6), respectively.Conclusion: The developed method for the simultaneous determination of 3 components can be used to control the quality of Yunnan Knoxia valerianoides.
8.Apoptosis of HepG2 cells after transfection with LIGHT gene and interferon-γ
Jinpeng LI ; Liqun WU ; Bing HAN ; Yun LU ; Zhenhua Lü ; Xiangping LIU ; Kun YANG ; Aihna SUI
Chinese Journal of Digestive Surgery 2009;8(2):124-126
Objective To investigate apoptosis of HepG2 ceils after transfecfion with LIGHT gene and interferon-γ. Methods LIGHT gene and interferon-γ were transfected into HepG2 cells by liposome mediated method. The HepG2 cells were divided into group A (transfected with LIGHT gene or interferon-γ), group B (transfeeted with LIGHT gene and interferon-γ) and group C (non-transfection group). The apoptosis rate of the HepG2 cells and the expression of Bcl-2 and Caspase-8 were detected 12, 24, 48 hours after transfeetion. Results (1) The apoptosis rates of HepG2 cells at hour 12, 24 and 48 after transfeetion were 18.8% ± 3.5%, 25.7%± 2.8% and 36.4% ±3.6% in group A, 23.8% ±2.4%, 31.1% ±2.1% and42.5% ±4.5% in group B, and 8.7% ± 2.1%, 9.3% ± 1.6% and 10.9% ± 1.2% in group C. There was a significant difference in apoptosis rate among the 3 groups (F = 15.69, 53.33, 48.28, P < 0.01). (2) The expression of Bcl-2 in HepG2 cells at hour 12, 24 and 48 after transfection was 16.4% ± 5.0%, 13.4% ± 3.5% and 8.6% ± 2.3% in group A, 14.7%±3.8%, 9.1% ±2.0% and 4.6% ±2.0% in group B, and 25.3% ±6. 3%, 19.8% ±4.4% and 10.1% ±3.8% in group C. There was a significant difference in the expression of Bcl-2 among the 3 groups (F = 6.19, 12.29, 5.81, P <0.05). (3) The expression of Caspase-8 at hour 12, 24 and48 after transfection were 19.3% ±2.4%, 27.2% ±1.9% and 33.7% ±3.0% in group A, 22.7% ±2.2%, 30.9% ±3.1% and 38.2% ±3.2% in group B, and 1.2% ±0.8%, 1.8% ±0.6% and 3.2% ±1.5% in group C. There was a significant difference in the expression of Caspase-8 among the 3 groups (F =71.54, 112. 78, I01.61, P < 0.01). Condusions LIGHT gene can signiticanfly promote cell apoptosis through regulating the expression of Bcl-2 and Caspase-8. Interferon-γ enhanced the effect of LIGHT gene on the apoptosis of HepG2 cells.
9.Auxiliary fixation of proximal humerus fractures with medial support
Qi SUN ; Jinpeng GONG ; Xiaoyang NIE ; Jiezhou WU ; Renlong LI ; Ming CAI
Chinese Journal of Orthopaedic Trauma 2016;18(7):641-644
There is a considerable increase in incidence of proximal humerus fractures.Locking plates are widely applied in the treatment of proximal humerus fractures due to their superior advantages.However,they may still lead to a high incidence of complications,especially in complex proximal humerus fractures.Reconstruction of medial support for a proximal humerus fracture can reduce complications effectively.At present,there is no consensus on the optimal method for medial support.The methods commonly used for medial support as an auxiliary fixation of proximal humerus fracture include screw support,bone transplantation,bone substitute and dual plates,all of which are discussed in this review.
10.Design of a dual wavelength multi-channel laser acupuncture instrument
Hengyong LYU ; Zhen LI ; Feng CUI ; Haibo ZHANG ; Yingxin LI ; Jinpeng WU
International Journal of Biomedical Engineering 2016;39(2):102-106
Objective To design a laser acupuncture instrument with dual wavelength and multi-channel,under the guidance of traditional Chinese medicine acupuncture theory and according to low-level laser induced effect in bio-tissues and compatibility characteristics of acupuncture points.Methods Using SCM and semiconductor laser,hardware circuitry was designed to achieve the basic functions of the instrument,and the corresponding PC software was developed.Results The laser acupuncture treatment for several acupuncture points could be carried out at the same time with the same or different laser parameters (wavelength,power density,continuous/pulse),and each channel could output 635 nm and 808 nm laser,with continuous adjustable power.Conclusions The dual wavelength multi-channel laser acupuncture instrument can meet the needs of compatibility during clinical acupuncture treatment and is easy to operate.