2.Relationship between anogenital distance and cryptorchidism in human newborns.
Da-peng JIANG ; Hong-quan GENG ; Hou-wei LIN ; Yu XI-NA ; Xi-wei ZHANG ; Shu-long YANG ; Shuai WANG
National Journal of Andrology 2015;21(5):432-435
OBJECTIVETo explore the relation of the anogenital distance (AGD) with cryptorchidism in male newborns.
METHODSThis study included 350 male infants delivered in two community hospitals between September 2013 and September 2014. Within 24 hours after birth, a pediatric surgeon measured the AGD of the neonates and determined whether they had cryptorchidism. According to the testicular position, we divided the undescended testes into three types: upper scrotal, inguinal, and non-palpable.
RESULTSTotally 39 cases of cryptorchidism were found in the 350 newborns. The AGD of the cryptorchidism infants was significantly shorter than that of the normal neonates ([2.01 ± 0.22] vs [2.35 ± 0.19] cm, P < 0.01), and statistically significant differences remained even when preterm and low birth-weight infants were excluded ([2.32 ± 0.14] vs [2.06 ± 0.19] cm; (2.37 ± 0.17) cm vs (2.12 ± 0.12) cm, all P < 0.01). The newborns with higher-position cryptorchidism had a shorter AGD, though with no significant difference (F = 0.434, P > 0.05). No significant differences were observed in the AGD between unilateral and bilateral cryptorchidism ([1.96 ± 0.13] vs [2.02 ± 0.17] cm, P > 0.05).
CONCLUSIONShorter AGD is associated with a higher incidence of cryptorchidism in male newborns. AGD could serve as a potential biomarker for disruption of androgen action during the male programming window period.
Androgens ; physiology ; Cryptorchidism ; diagnosis ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Infant, Premature ; Male ; Perineum ; abnormalities
3.Clinical efficacy evaluation of needle-knife for lumber disc herniation based on surface electromyography signals.
Xi-Yun YANG ; Zhi-Ru CHEN ; Da-Cheng ZHAO ; Jian GUO
Chinese Acupuncture & Moxibustion 2014;34(8):798-800
OBJECTIVETo apply needle-knife to treat lumber disc herniation (LDH) and surface electromyography were used to analyze biomechanical characteristic of patient's lumber muscle to make a comprehensive evaluation on its efficacy.
METHODSThirty patients who met the inclusive criteria were selected and treated with needle-knife, once a week for 2 weeks. Visual analogue scale (VAS), ASLR and JOA score before and after treatment were observed. Surface electromyography was applied to test the surface electromyography signals. AEMG, MFs and MPF were calculated before and after the treatment.
RESULTSAfter treatment, VAS was significantly reduced, ASLR, JOA, AEMG and MPF were obviously increased, and the absolute value of MFs was lowed (all P < 0.01).
CONCLUSIONThe needle-knife could significantly relieve lumbar muscle strength, muscle tone and muscle fatigue, improve in the imbalance of lumbar extensor muscle group, leading to the recovery of biomechanical characteristic, and the clinical efficacy is superior.
Acupuncture Therapy ; Adult ; Electromyography ; Female ; Humans ; Intervertebral Disc Displacement ; diagnosis ; physiopathology ; therapy ; Lumbar Vertebrae ; physiopathology ; Male ; Middle Aged
4.Detection of hydrogen phosphide in blood and lung tissue of patient with acute hydrogen phosphide poisoning.
Shao-feng FANG ; Li-hui GUI ; Yu-xin YANG ; Da-qing HAO ; Jing-zhuan XI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(2):82-82
Acute Disease
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Adult
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Chromatography, Gas
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Female
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Humans
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Lung
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chemistry
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Phosphines
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analysis
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blood
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poisoning
5.Risk factors associated with stress ulcer bleeding in postoperative rectal cancer patients.
Chao CHEN ; Yang SHI ; Xi-peng ZHANG ; Pei-da ZHANG
Chinese Journal of Gastrointestinal Surgery 2012;15(12):1277-1281
OBJECTIVETo explore the influence factor of stress ulcer bleeding(SUB) in postoperative rectal cancer patients.
METHODSClinical data of rectal cancer patients undergoing operation in our hospital were analyzed retrospectively. Patients were divided into case group and control group according to the postoperative occurrence of SUB. Univariate analysis combined with multivariate analysis were used to evaluate the influence factors.
RESULTSChronic diseases incidence of case group was higher than that of control group. Except for renal failure, the incidence of postoperative complications of case group was higher than that of control group. Univariate analysis revealed that age, chronic disease, preoperative, and postoperative complications had statistical significant differences(P<0.05). Multivariate analysis identified that age(OR=2.893, 95%CI:1.118-5.543), drinking history(OR=3.839, 95%CI:1.012-6.654), preoperative chronic disease(OR=4.646, 95%CI:1.872-8.892), intraoperative bleeding volume(OR=5.129, 95%CI:2.829-9.328), occurrence of severe complications after surgery(OR=6.576, 95%CI:4.539-13.278), postoperative application of glucocorticoid(OR=2.978, 95%CI:1.013-4.512), preoperative application of non-steroidal anti-inflammatory drugs(OR=2.126, 95%CI:1.287-7.636) were risk factors for SUB in rectal cancer patients after operation. Postoperative prophylactic use antacids(OR=0.102, 95%CI:0.017-0.196) was protective factor for SUB patients.
CONCLUSIONEffective measures should be taken for high-risk patients, in order to improve the prognosis of patients.
Gastrointestinal Hemorrhage ; etiology ; Humans ; Incidence ; Morbidity ; Multivariate Analysis ; Postoperative Complications ; Postoperative Period ; Prognosis ; Rectal Neoplasms ; surgery ; Retrospective Studies ; Risk Factors ; Ulcer ; etiology
6.The expression of caspase-10 in differentiated thyroid carcinoma and association with its development and metastasis
Da-long, YIN ; Hai-yan, YANG ; Lian-xin, LIU ; Xi, CHEN ; Lan-tian, TIAN ; Shu-geng, ZHANG ; Hong-chi, JIANG
Chinese Journal of Endemiology 2009;28(5):493-496
Objective To investigate the expression of caspase-10 in differentiated thyroid carcinoma and association with its development and metastasis. Methods Thyroid samples from 37 patients in a period from January 2006 to December 2007, with differentiated thyroid carcinoma were retrospectively analyzed for caspase-10 by immunohistocbemistry(streptavidin-perosidase, S-P), compared to control group of 46 cases with nodtdar goiter. The relationship between the expression of caspase-10 and the clinical pathologic characteristics of thyroid carcinoma were also explored simultaneously. Results caspase-10 were observed as brown or yellow particles located in the cytoplasm or cell membrane of nodular goiter but there were no significant evidence for its positive expression in thyroid carcinoma, caspase-10 expression was markedly down-regulated in differentiated thyroid carcinoma(29.73%,11/37) compared with benign nodules(71.74%,33/46, χ2=14.528, P<0.01). The positive expression in 18 cases with lymph node metastasis(11.11%,2/18) was significantly lower than those in 19 patients without lymph node metastasis(47.37%,9/19; χ2=4.210, P<0.01). There was no significant correlation(P> 0.05) between the expression of caspase-10 and the clinical pathologic characteristics including male, age, TNM stage and pathologic type. Conclusion Down-regulation of caspase-10 may play a critical role in carcinogenesis and development of differentiated thyroid carcinoma.
7.Satisfaction of Village Doctors with the Township and Village Health Services Integration Policy in the Western Minority-inhabited Areas of China
FENG DA ; ZHANG LIANG ; XIANG YUAN-XI ; ZHANG DONG-LAN ; WANG RUO-XI ; TANG SHANG-FENG ; FU HANG ; LI BO-YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2017;37(1):11-19
Township and Village Health Services Integration Management (TVHSIM) is an essential form of China's two-tiered health service integration plan at the township and village level.Its main purpose,also one of the target goals in China's new healthcare reform,is to gradually integrate rural health services and appropriately allocate rural health resources.This study aims to assess the village doctors' satisfaction with the TVHSIM and provide scientific base to further improve TVHSIM.A cross-sectional study was carried out in which 162 village doctors from Qinghai,Inner Mongolia and Xinjiang in western China were interviewed.Descriptive analysis,independent t-test,one-way ANOVA,Spearman rank correlation and multiple linear regression were used to analyze the difference and relevance between village doctors' personal characteristics and their satisfaction with TVHSIM and six subscales.Village doctors with different years of practice,social insurance status and essential medical knowledge level showed statistically significant differences in their satisfaction levels (all P<0.05).Age (P<0.05) and years of practice (P<0.01) were negatively correlated with Drug and Medical Device Management and Financing Management.Essential medical knowledge level (P<0.05) was negatively correlated with Operations Management as well.However,social insurance status (P<0.05) was positively correlated with Human Resources Management and Drug and Medical Device management.Gender,age and years of practice respectively had significant influence on village doctors' satisfaction with TVHSIM (P<0.01).In conclusion,in order to further promote TVHSIM policy in rural China,a well-rounded social insurance model for village doctors is urgently needed.In addition,the development of TVHSIM is regionally imbalanced.Efficient and effective measures aiming at rationalizing gender and age structure and enhancing essential medical training should be carefully considered.
8.Progress in the study of targeted drug delivery systems for cancer stem cells.
Ming-Xi QIAO ; Xiao-Jun ZHANG ; B A SHUANG ; Hai-Yang HU ; Xiu-Li ZHAO ; Da-Wei CHEN
Acta Pharmaceutica Sinica 2013;48(4):477-483
The discovery, sorting and identification methods as well as targeted drug delivery systems for cancer stem cells (CSCs) have been reviewed by consulting the recent research papers. CSCs have been believed to be responsible for the occurrence and development of chemo-resistance, leading to the failure of chemotherapy. Much progress has been made in the approaches for CSCs targeting drug delivery systems. The understanding and targeted drug delivery systems for CSCs are promising to provide an alternative for cancer therapy.
Animals
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Antineoplastic Agents
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pharmacology
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therapeutic use
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Apoptosis
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drug effects
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Drug Delivery Systems
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methods
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Drug Resistance, Neoplasm
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Flow Cytometry
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Humans
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Neoplasms
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drug therapy
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pathology
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Neoplastic Stem Cells
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drug effects
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pathology
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Signal Transduction
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drug effects
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Wnt Signaling Pathway
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drug effects
9.The characterisitics of temperature/pH sensitive block copolymer micelles in vitro.
Li JIA ; Ming-Xi QIAO ; Hai-Yang HU ; Xiu-Li ZHAO ; Da-Wei CHEN
Acta Pharmaceutica Sinica 2011;46(7):839-844
The dialysis method was employed to prepare blank and doxorubicin (DOX) loaded micelles formed by temperature- and pH- sensitive polyhistidine-co-polyDL-lactide-co-glycolide-co-polyethyleneglycol-co-polyDL-lactide-co-glycolide-co-polyhistidine (PHis-b-PLGA-b-PEG-b-PLGA-b-PHis). The critical micelle concentrations (CMC) of the copolymers were measured with Pyrene Fluorescent Probe Technique. The temperature- and pH- sensitive properties of the blank micelles solution were investigated by optical transmittance measurement. The morphology and diameter of DOX micelles were characterized by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The entrapment rate and drug-loading rate were determined with dialysis method. The in vitro release study was further performed to examine the temperature- and pH-responsive drug release behavior from DOX-loaded micelles. The results indicated that the CMC, entrapment efficiency and drug-loaded amount of the micelles were 7.5 x 10(-3) g x L(-1), 85.2 +/- 3.1% and 10.4 +/- 4.5%, respectively. The DOX micelle was globular-shaped with a mean diameter of 91.1 +/- 15.8 nm. The transmittance of micelle solution consistently increased with the increasing temperature or decreasing pH. In comparison to the drug release profile at physiological conditions (37 degrees C, pH 7.4), the DOX-loaded micelles showed faster drug release rate at higher temperature (41 degrees C), lower pH (pH 7.0, pH 6.5, pH 5.0) or higher temperature and lower pH (41 degrees C, pH 5.0). This indicated that the micelles showed a temperature and pH-triggered drug release pattern. Base on the above results, it can be concluded that PHis-b-PLGA-b-PEG-b-PLGA-b-PHis block copolymer micelles which respond to temperature and pH stimuli are promising smart carriers for anti-tumor drugs with the advantages of temperature- and pH- triggered drug release.
Antibiotics, Antineoplastic
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administration & dosage
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chemistry
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Doxorubicin
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administration & dosage
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chemistry
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Drug Carriers
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Drug Compounding
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Histidine
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chemistry
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Hydrogen-Ion Concentration
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Micelles
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Particle Size
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Polyethylene Glycols
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chemistry
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Polyglactin 910
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chemistry
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Polymers
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chemistry
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Temperature
10.Effect of Necrostatin-1 on the inflammation in unilateral ureter obstruction mice
Xia XIAO ; Tao ZHANG ; da Xi YANG ; Qing TENG ; Jia HOU ; zhuo Yun REN
Chinese Journal of Clinical and Experimental Pathology 2017;33(8):863-867
Purpose To observe the effect of Necrostatin-1 (Nec-1),a necroptosis inhibitor,on the inflammation in unilateral ureter obstruction mice.Methods Male C57BL/6J mice were randomly divided into sham operation group,unilateral ureter obstruction operation group and UUO + Nec-1 treatment group,and the mice were sacrificed at 7th day after operated.Scr and BUN were measured.The pathological changes in the kidney were observed by HE staining.Immunohistochemistry and Western blot were used to detect the protein expression of necroptosis-related indicators RIP1,RIP3,MLKL and inflammatory cytokines TNF-α,IL-1β and MCP-1.Results Compared with sham operation group,the expression of RIP1,RIP3 and MLKL protein increased in the renal tissue of UUO mice,accompanied with increased expression of TNF-α,IL-1β and MCP-1.Nec-1 treatment significantly decreased above-mentioned protein expression in UUO mice,and also reduced renal interstitial inflammation and renal tubal injury according to HE staining.Scr and BUN levels suggested improved renal function.Conclusion Nec-1 could relieve the inflammatory reaction in renal tissue of the UUO mice by inhibiting necroptosis,which may be a new target for the treatment of secondary inflammation.