1.Expression of Plasminogen Activator Inhibitor-1 of Frozen Muscle Specimensin Muscular Dystrophy
gui-lian, SUN ; hong-kun, JIANG ; shuang, ZHAO ; jing, ZHANG
Journal of Applied Clinical Pediatrics 2006;0(24):-
Objective To explore the role of plasminogen activator inhibitor-1(PAI-1)in development of progressive fibrosis via the inhibition of extracellular matrix degradation,and to reveal the contributive role of PAI-1 in muscular dystrophy(MD).Methods Expression and cellular localization of PAI-1 protein were examined in frozen muscle specimens obtained via biopsy from 5 patients with duchenne muscular dystrophy(DMD),3 patients with becker muscular dystrophy(BMD),9 patients with congenital muscular dystrophy(CMD) and 4 cases with normal muscle by immunohistochemistry,double immunofluorescence and Western-blot analysis.Results PAI-1 was positive only in vascular endothelial cells of normal muscle.Both immunohistochemistry and Western-blot analysis showed that PAI-1 expression distinctly increased in most dystrophic muscles of MD than that in normal muscles.Double immunolabeling revealed that PAI-1 strongly expressed in cytoplasm and nuclei of regenerating muscle fibers,macrophages,macrophage infiltrating necrotic fibers.Some activated fibroblasts in endomysium and perimysium of DMD and CMD muscles were positive for PAI-1.Conclusions The functional consequence of overexpression of PAI-1 in dystrophic muscles is unknown but the elevated local expression of PAI-1 in diseased muscles of MD and their distinct distribution pattern provide evidence that PAI-1 participate in pathogenesis of MD.
2.Patency rate and endothelialization study of displace of blood vessel with prostheses seeded by CD34~+ stem cells
Weishuai LIAN ; Zhenhai YU ; Kun WANG ; Shuguang ZHANG
Chinese Journal of Current Advances in General Surgery 1999;0(03):-
Objective:To investigate the endothelialization and intermediate and long-term patency rate of prostheses seeded by CD34+ stem cells.Methods:sixteen crossbred dogs were randomized into 2 groups.Prostheses covered with ePTFE or Dacron were implanted into the abdominal aorta artery(AAA) and inferior vena cava(IVC).Twelve dogs were implanted by prostheses seeded by CD34+ stem cells,4 dogs were implanted by autogenous blood only as control.The prostheses were explanted at thirty or sixty or one hundred days.Light and electron microscopy were applied to examine endothelialization of prostheses.CD34 factor stain was used to identify endothelial cells.Results:All venous prostheses implanted by autogenous blood were blocked.Others were patent.Confluent endothelial cells appeared on the neointima of seeded prostheses.There were no endothelial cells in the no-implanted prostheses.Conclusion:Endothelialization and higher patency rate might be achieved in the prostheses covered with ePTFE or Dacron that were implanted by CD34+ stem cells.
3.Progress on the research of prevention and treatment of female climacteric syndrome by traditional Chinese medicine.
Kun MA ; Lian-Da LI ; Li-Juan ZHANG
China Journal of Chinese Materia Medica 2005;30(6):414-418
Perimenopause syndrome, referred also to climacteric syndrome, results from the changing of relationship among hypothalamus, pituitary and ovary during women's aging process. Those changes take place first in overy, then in hypothalmus and pituitary, which are reflected as the functional changes in endocrinological and central nervous system, accompanied with a series of psychological symptoms. 90% of women with perimenopause syndrome show clinical symptoms. The clinical prevention and treatment of female climacteric syndrome by traditional Chinese medicine: traditional Chinese medicine attributes the various symptoms of female climacteric syndrome to a variety of syndromes of Chinese medicine, e. g. gradual consumption of kidney-Qi, emptiness of the Ren and Chong channels, gradual exhaustion of Tienqui, breakdown of Yin-Yang equilibrium in the body, disorders of Zang-Fu, Qi and blood. The treatment based on syndrome differentiation, modification of prescription according to the symptoms, special prescription and simple recipe and acupuncture were employed in treating Yin-deficiency of the kidney, Yang-deficiency of the kidney, Yin and Yang-deficiency of the kidney, breakdown of the normal physiological coordination between the heart and the kidney, deficiency of liver-Yin and kidney-Yin, insufficiency of both the spleen and the kidney, deficiency of Qi and blood in the heart and spleen, stagnation of the liver-Qi and deficiency of the spleen, stagnation of the liver-Qi, phlegm stagnancy and the upward invasion of heat-phlegm. The traditional Chinese medicinal had a satisfactory global regulating effect on the nervous system and immune- regulating network with multifunction and unique advantage, e.g. its regulating effect on FSH, LH, E2, 5-HT, 5-HIAA, free radical and adtonomic nervous system. Experimental studies have also been conducted, e. g. There were also systematic studies of the simple Chinese drugs' pharmacodynamics and drugs forms of prepared drugs. In the health care of female climacteric syndrome the traditional Chinese medicine has also its own features and advantages.
Animals
;
Climacteric
;
Drugs, Chinese Herbal
;
therapeutic use
;
Female
;
Humans
;
Kidney Diseases
;
drug therapy
;
Medicine, Chinese Traditional
;
Qi
;
Syndrome
;
Yang Deficiency
;
drug therapy
;
Yin Deficiency
;
drug therapy
;
Yin-Yang
4.CGEM 2000 cerebrograph imaging system
Lian-Xiang CHEN ; Qing-Ling ZHANG ; Xin-Hui WANG ; Qi-Kun LUO ;
Chinese Medical Equipment Journal 1993;0(05):-
Cerebrograph imaging system is a medical imaging device which is used to diagnose cere- brovascular disease and investigate the function of cerebrum.This system can analyse quantitatively regional Cerebral Blood Flow(rCBF)and map it.Besides that,it can also record and analyse quantitatively electroen- cephalography(EEG)andmap topographical EEG.The measurement of cerebellum-brain stem-cerebral cor- tex is realized and a map is also given.This system first conjugates the technique of nuclear medicine imag- ing with that of electrophysiology.It provides doctors with synthetic information about CBF and the function of cerebrum in the manner of colour rCBF map,topographical EEG and quantitative data.These informa- tion are very important to the diagnosis and the research of cerebropathy,and especially have significant val- ue to earlier diagnosis of cerebrovascular disease.
5.Continuous hemofiltration for prevention of contrast induced nephropathy in patients with advanced chronic kidney disease after percutaneous coronary intervention
Kun WANG ; Biao XU ; Lian WANG ; Jie SONG ; Wei HUANG ; Ling GAO ; Jingmei ZHANG
Chinese Journal of Interventional Cardiology 2014;(9):578-581
Objective To assess the value of hemofiltration in the prevention of contrast induced nephropathy(CIN) post percutaneous coronary intervention(PCI) in severe chronic kidney disease stages(CKD) patients. Methods We evaluated 30 CKD patients who underwent PCI followed by bedside hemofiltration. We measured serum creatinine levels before PCI, 24 hours, 72 hours, and one week after PCI, and calculated creatinine clearance(CrCl) according to Cockcroft and Gault equation.We observed the incidence of CIN, and the short term clinical efficacy of hemofiltralion. Results The average age of the 30 patients was (72.87 ± 8.71) years old, with 21 (70%) male patients. The stages of CKD among the patients included CKD 3 (3 patients, 10%), CKD 4 (20 patients, 66.7%) and CKD 5 (7 patients, 23.3%). The average duration of hemofiltration was (7.5±4.1) hours. Serum creatinine before PCI, 24 hours, 72 hours and 1 week after PCI was (498.7±143.7)μmol/L, (353.2±128.0)μmol/L, (450.0±132.2)μmol/L, (488.0±145.7)μmol/L respectively,and CrCl was (20.3±10.2) ml/min, (36.5±14.3) ml/min, (28.3±10.4) ml/min, (21.0±10.3) ml/min respectively. There was no CIN. Mean follow-up was (3.1 ± 2.6) months. There was no new cardiovascular events, and no new patients need to rely on long term hemodialysis. Conclusions For patients with severe renal insufficiency, hemofiltration may reduce the incidence of CIN, It is an alternative preventive measures to prevent CIN.
6.Analyzing the influencing factors of neck and low back work-related musculoskeletal disorders in acupuncturists
HUANG Yun xuan ZHANG Kun ZHUANG Zi qi YANG Lian sheng
China Occupational Medicine 2022;49(05):507-
Objective - ( )
To analyze the current situation of work related musculoskeletal disorders WMSDs in neck and low
, Methods
back of acupuncturists and to explore its influencing factors. A total of 272 acupuncturists from 21 hospitals above
grade B level in Guangdong Province were selected as study subjects using convenient sampling method. The revised Chinese
,
version of Musculoskeletal Disorders Questionnaire was used to investigate the prevalence of WMSDs in the past one year and
Results
the influencing factors of WMSDs in the high incidence areas such as neck and low back were analyzed. The annual
( ), ( )
prevalence of WMSDs among acupuncturists was 94.9%. The prevalence of WMSDs in the neck 81.6% low back 81.6%
( ) ,
and shoulder 63.2% was the highest and the prevalence of WMSDs in both the neck and low back was 73.5%. The prevalence
- - ( vs ,P )
of multi site WMSDs was higher than that of single site WMSDs 86.0% 8.8% <0.01 . Multivariate logistic regression
, - , ,
analysis showed that acupuncturists who were female long time sitting work repeated operations within one minute and work
( P )
changing every day were common risk factors for neck or low back WMSDs or both neck and low back all <0.05 . Keeping the
, ,
same posture for a long time driving to work and personnel shortage were risk factors for low back WMSDs in acupuncturists
( P ) (P )Conclusion
all <0.05 . Uncomfortable working posture was a risk factor for WMSDs in both neck and low back <0.05 .
- , -
Acupuncturists are the high risk population of WMSDs and the neck and low back are the high risk sites of WMSDs. The
influencing factors of WMSDs in acupuncturists include individual factors and occupational factors such as poor ergonomics and
work organization.
7.Research of chemotaxis response of Botrytis cinerea and Alternaria panax on total ginsenosides.
Kun CHI ; Yong-hua XU ; Feng-jie LEI ; Min-jing YIN ; Zhuang WANG ; Ai-hua ZHANG ; Lian-xue ZHANG
China Journal of Chinese Materia Medica 2015;40(19):3742-3747
In this paper, three kinds of chemotactic parameters (concentration, temperature and pH) were determined by plate assay and spore germination method to research the chemotactic response of Botrytis cinerea and Alternaria panax, and their spores on total ginsenosides. The results showed that Botrytis cinerea had strong chemotactic response at the mid-concentration of total ginsenosides (cultivation temperature was 20 degrees C and pH value was 6), and the data of chemotactic migration index (CMI) was 1.293 0, chemotactic growth rate (CGR) was 0.476 0, spore germination rate (SGR) was 53%, and dry weight of mycelial (DWM) was 0.452 6 g x L(-1); however, Alternaria panax had strong chemotactic response at the low-concentration of total ginsenosides (cultivation temperature was 25 degrees C and pH value was 6), and the data of chemotactic migration index (CMI) was 1.235 4, chemotactic growth rate (CGR) was 0.537 0, spore germination rate (SGR) was 67%, and dry weight of mycelial (DWM) was 0.494 8 g x L(-1). The results indicated that the low and middle concentration (2, 20 mg x L(-1)) of total ginsenosides had significant promoting effect on chemotactic response of these two pathogens, and the spore germination, mycelial growth rate, dry weight of mycelial of them were also significantly improved by this chemotactic response, whereas it decreased as the increase of total ginsenosides concentration.
Alternaria
;
drug effects
;
growth & development
;
physiology
;
Botrytis
;
drug effects
;
growth & development
;
physiology
;
Chemotaxis
;
drug effects
;
Drugs, Chinese Herbal
;
metabolism
;
pharmacology
;
Ginsenosides
;
metabolism
;
pharmacology
;
Panax
;
metabolism
;
microbiology
;
Plant Diseases
;
microbiology
;
Spores, Fungal
;
drug effects
;
growth & development
;
physiology
8.Disseminated cryptococcosis caused by Cryptococcus neoformans a case report and review
SHAN Kun ; ZUO Hui-fen ; ZHENG Cui-ying ; ZHANG Ze-kun ; ZHAO Lian-chun ; HUANG Yin-qi ; WANG Peng ; ZHAO Zhen-jun ; ZHANG Li-jie
China Tropical Medicine 2022;22(11):1043-
Abstract: To analyze the clinical, therapeutic and laboratory characteristics of disseminated cryptococcosis caused by Cryptococcus neoformans invading the blood stream in patient with liver cirrhosis and splenectomy. A 30-year-old male underwent splenectomy plus pericardial devascularization due to "splenomegaly and hypersplenism" in March in 2016. The patient had intermittent fever after operation for many times, and successively accompanied with back pain, left lower limb abscess and right hip pain. The highest body temperature was 39 ℃. CT and MRI revealed the lung lesion and multiple bone destruction. During that period, the effect of antibiotics was not good. On April 19th, 2017, Gram's stain, India ink stain, API 32C, Vitek 2 Compact, ribosomal ITS and IGS sequence analysis were performed to identify the strain isolated from the pus and blood stream. The serum of the patient was detected for cryptococcal antigen. Antifungal susceptibility test was used to determine drug sensitivity and minimum inhibitory concentration (MIC). The Cryptococcus neoformans isolated from fresh pus specimen showed a prominent, thick capsule after India ink stain. The colonies isolated from pus and blood stream were identified Cryptococcus neoformans using API 32C, Vitek 2 Compact, and sequence analysis of rDNA ITS and IGS. Cryptococcal capsule antigen was positive. The minimal inhibitory concentrations of 5-Flucytosine, amphotericin B, fluconazole, itriconazole, voriconazole against the isolate were <4 μg/mL, <0.5 μg/mL, 4 μg/mL, ≤0.25 μg/mL, 0.125 μg/mL respectively. The patient was initially treated with intravenous amphotericin B and flucytosine. After anti-Cryptococcus treatment for two months, the patient clinically improved, and the lesions were reduced on a follow-up CT scan. The patient made a full functional recovery after treatment for six months. Cryptococcosis has hidden onset, atypical clinical symptoms and lack of specificity. Blood stream is the main channel for Cryptococcus to spread and involve many organs of the whole body, including skin, bone and so on. Therefore, early use of blood culture to monitor blood flow dissemination, actively removing the primary focus and cutting off the infection route in time and carrying out effective anti-Cryptococcus treatment are conducive to the patient's early recovery.
9.Methylation specific binding activity of zinc finger protein Kaiso.
Bao-Zhen ZHANG ; Lian-Kun GU ; Da-Jun DENG
Chinese Journal of Preventive Medicine 2007;41 Suppl():43-46
OBJECTIVETo compare binding activity of different zinc finger domain of human Kaiso with methylated CpG.
METHODSpGEX constructs with different human Kaiso domain were generated and then corresponding fusion proteins were induced and purified. Electrophoretic mobility shift assays were applied to evaluate the binding activity of fusion proteins with methylated CpG.
RESULTSThe purified GST-KaisoZF fusion protein (without the POZ protein binding domain) could bind with methylated CpG probe specifically, but not for three or two zinc fingers without flanking domains.
CONCLUSIONHuman zinc finger protein Kaiso could bind with methylated CpG specifically, only in the assistance of the neighboring flank sequence of the zinc finger domain.
Base Sequence ; CpG Islands ; DNA Methylation ; Humans ; Transcription Factors ; genetics ; Zinc Fingers ; genetics
10.Efficiency of rotational atherectomy with drug eluting stents by intravascular ultrasound for elderly patients with heavily calcified lesions
Tingting YU ; Zhenyu YIN ; Chun WANG ; Biao XU ; Jie SONG ; Lian WANG ; Wei HUANG ; Jingmei ZHANG ; Kun WANG
Chinese Journal of Postgraduates of Medicine 2016;39(7):620-623
Objective To evaluate the efficiency of rotational atherectomy (RA) with drug-eluting stents (DES) by intravascular ultrasound (IVUS) for elderly patients with heavily calcified lesions. Methods Thirteen patients aged above 70 years with heavily calcified coronary artery having underwent the treatment of RA and DES by IVUS were enrolled. The levels of troponin T, creatine kinase isozyme-MB and creatinine were detected before and after operation.The levels of minimus lumen diameter, diameter stenosis rate, effective area of the lumen before and after operation were compared. The immediate success rate was evaluated and the follow-up results were recorded. Results Thirteen patients in accordance with angiography and IVUS examination were confirmed as severe calcification. The levels of troponin T, creatine kinase isozyme-MB and creatinine detected before and after operation had no significantly differences (P>0.05). The levels of minimus lumen diameter, diameter stenosis rate and effective area of the lumen before and after operation had significant differences:(2.06 ± 0.38) mm vs. (3.98 ± 0.76) mm, (73.26 ± 7.02)%vs. (17.00 ± 3.34)%, (4.53 ± 1.50) mm2 vs. (12.54 ± 6.19) mm2, P<0.01. The rate of left anterior descending artery, circumflex artery and right coronary artery calcification was 10/13, 0 and 1/13. All patients′operation was successful. Followed up for (14.6 ± 3.4) months, no patients had angina and myocardial infarction, or required target vessel revascularization. Conclusions RA with DES by IVUS can be safely used in elderly patients with severely calcified coronary artery disease, and can improve the success rate of intervention operation.