1.Pre-operative Factors Predicting Mortality in Six Months and Functional Recovery in Elderly Patients with Hip Fractures
Nam NH ; Minh ND ; Hai TX ; Sinh CT ; Loi CB ; Anh LT
Malaysian Orthopaedic Journal 2023;17(No.1):10-17
Introduction: This study aimed to determine on-admission
and perioperative factors predicting six-month mortality and
functional recovery in Vietnamese patients with hip fracture.
Materials and methods: Between April 2020 and July
2021, 118 patients participated in this prospective study.
Patients’ data were collected from medical records. Harris
hip score (HHS) was used to evaluate the functional recovery
six months after fractures. The obtained data were analysed
using a univariate and multivariate model.
Results: The mean age of the participants was 79.5±9.4
years and 68.6% of the patients were female. The six-month
mortality rate was 5.9% and independently associated with
age (odds ratio (OR): 3.512, 95% confidence interval (CI)
1.538 – 8.019; P<0.001, patients aged >80 years vs those
aged ≤80 years) and hypoproteinemia (OR: 2.859, 95% CI:
1.001 – 8.166, P=0.049). Among 111 survivors there were 66
(59.5%) of patients with a good functional recovery. Patients
aged >80 years had a higher risk of poor functional outcome
(OR: 3.167, 95% CI: 1.386 – 7.235, P: 0.006) compared to
those aged ≤ 80 years. No significant correlations between
other clinical (gender, body mass index, comorbidities, type
of fractures or surgery, time until surgery) or laboratory
parameters (anaemia, hyperglycemia, marked elevation of C
reactive protein level, electrolyte abnormalities, elevated
urea) and mortality or functional outcome were found.
Conclusion: Advanced age is the most important factor
affecting both mortality and functional outcome while
hypoproteinemia is associated with a higher risk of mortality
in elderly patients with hip fractures.
2.Steroid Receptor Coactivator 3 Regulates Synaptic Plasticity and Hippocampus-dependent Memory.
Hai-Long ZHANG ; Bing ZHAO ; Pin YANG ; Yin-Quan DU ; Wei HAN ; Jianming XU ; Dong-Min YIN
Neuroscience Bulletin 2021;37(12):1645-1657
Steroid hormones play important roles in brain development and function. The signaling of steroid hormones depends on the interaction between steroid receptors and their coactivators. Although the function of steroid receptor coactivators has been extensively studied in other tissues, their functions in the central nervous system are less well investigated. In this study, we addressed the function of steroid receptor coactivator 3 (SRC3) - a member of the p160 SRC protein family that is expressed predominantly in the hippocampus. While hippocampal development was not altered in Src3
Animals
;
Hippocampus
;
Long-Term Potentiation
;
Mice
;
Neuronal Plasticity
;
Nuclear Receptor Coactivator 3/genetics*
;
Synapses
3.Hyaluronic acid derivative-modified nano-structured lipid carrier for cancer targeting and therapy.
Xiao LIU ; Hai LIU ; Su-Lan WANG ; Jing-Wen LIU
Journal of Zhejiang University. Science. B 2020;21(7):571-580
To reduce the problems of poor solubility, high in vivo dosage requirement, and weak targeting ability of paclitaxel (PTX), a hyaluronic acid-octadecylamine (HA-ODA)-modified nano-structured lipid carrier (HA-NLC) was constructed. HA-ODA conjugates were synthesized by an amide reaction between HA and ODA. The hydrophobic chain of HA-ODA can be embedded in the lipid core of the NLC to obtain HA-NLC. The HA-NLC displayed strong internalization in cluster determinant 44 (CD44) highly expressed MCF-7 cells, and endocytosis mediated by the CD44 receptor was involved. The HA-NLC had an encapsulation efficiency of PTX of 72.0%. The cytotoxicity of the PTX-loaded nanoparticle HA-NLC/PTX in MCF-7 cells was much stronger than that of the commercial preparation Taxol®. In vivo, the HA-NLC exhibited strong tumor targeting ability. The distribution of the NLCs to the liver and spleen was reduced after HA modification, while more nanoparticles were aggregated to the tumor site. Our results suggest that HA-NLC has excellent properties as a nano drug carrier and potential for in vivo targeting.
4.Incidence and clinical correlates of anger attacks in Chinese patients with obsessive-compulsive disorder.
Ying-Ying ZHANG ; Heng-Fen GONG ; Xiao-Li ZHANG ; Wen-Juan LIU ; Hai-Yan JIN ; Fang FANG ; Sophie SCHNEIDER ; Elizabeth MCINGVALE ; Chen-Cheng ZHANG ; Wayne K GOODMAN ; Xi-Rong SUN ; Eric A STORCH
Journal of Zhejiang University. Science. B 2019;20(4):363-370
OBJECTIVE:
Anger attacks have been observed in patients with obsessive-compulsive disorder (OCD), often triggered by obsessional triggers. However, few studies have reported the clinical characteristics and correlates of anger attacks among Chinese patients with OCD.
METHODS:
A total of 90 adults with a primary diagnosis of OCD, ranging from 15 to 78 years old, participated in the study. Participants were administered the Rage Outbursts and Anger Rating Scale (ROARS), Yale-Brown Obsessive-Compulsive Scale-Second Edition, and Brown Assessment of Beliefs Scale by a trained clinician. Patients completed the Obsessive-Compulsive Inventory-Revised and Depression Anxiety Stress Scale-21.
RESULTS:
A total of 31.3% of participants reported anger outbursts in the past week, and ROARS scores had no significant correlation with age, duration of illness, OCD severity, depression, or stress. However, ROARS scores were negatively related to education level, and positively related to obsessing symptoms and anxiety.
CONCLUSIONS
These data suggest that anger attacks are relatively common in Chinese patients with OCD. The severity of anger attacks is related to educational level, obsessing symptoms, and anxiety, which may be a latent variable reflecting executive functioning and emotion regulation skills.
Adolescent
;
Adult
;
Age Factors
;
Anger
;
China
;
Depression/complications*
;
Emotions
;
Executive Function
;
Female
;
Humans
;
Incidence
;
Male
;
Middle Aged
;
Obsessive-Compulsive Disorder/psychology*
;
Regression Analysis
;
Severity of Illness Index
;
Stress, Psychological
;
Young Adult
5.Percutaneous intervention for bilioenteric anastomotic strictures: Current strategies and future directions.
Gastrointestinal Intervention 2017;6(1):70-77
Postoperative bilioenteric anastomotic strictures are encountered in a significant number of patients after primary biliary repair, hepatopancreaticobiliary tumor resection, and liver transplantation. Due to difficulties with repeat surgery and endoscopic access, percutaneous dilation has become the accepted treatment in these cases. While the overall paradigm of percutaneous access, balloon dilation, and catheter stenting remains consistent, institutional protocols differ in several technical variables including balloon sizes, inflation techniques, catheter sizing, and overall time course of treatment, amongst others. The current review aims to discuss various treatment protocols and their relative efficacy, as well as touch on emerging techniques.
Biliary Tract
;
Catheters
;
Clinical Protocols
;
Constriction, Pathologic*
;
Humans
;
Inflation, Economic
;
Liver Transplantation
;
Radiology, Interventional
;
Reoperation
;
Stents
6.Mechanical behavior and wall remodeling of blood vessels under axial twist
Hai-chao HAN ; Qin LIU ; Zong-lai JIANG
Journal of Medical Biomechanics 2016;31(4):E319-E326
Blood vessels are often subjected to axial torsion (or twist) due to body movement or surgery. However, there are few studies on blood vessel under twist. This review first summarizes the clinical observation on the twist of blood vessels and then presents what we know about the mechanical behaviors of blood vessel under twist, including the constitutive models. The state of art researches on the remodeling of blood vessels under twist via ex vivo organ culture, in vivo animal experiments, and mathematical model simulations are further discussed. It is our hope that this review will draw attention for further in-depth studies on the behavior and remodeling of blood vessels under twist.
7.Treatment of hyperhomocysteinemia and endothelial dysfunction in renal-transplant recipients with vitamin B.
Tao XU ; Xiao-feng WANG ; Xing-ke QU ; Hai-yun YE ; Xiao-bo HUANG ; Xiao-peng ZHANG ; Shu-kun HOU
Chinese Journal of Surgery 2005;43(14):940-943
OBJECTIVETo study the effect of vitamin B on treatment of hyperhomocysteinemia and endothelial dysfunction in renal-transplant recipients.
METHODSThirty-six stable hyperhomocysteinemic renal-transplant recipients were randomly assigned to vitamin treatment (group A, n = 18, folic acid 5 mg/d, vitamin B(6) 50 mg/d, B(12) 1000 microg/d) or controlled group (group B, n = 18) for 6 months. All subjects underwent assessment of levels for creatinine, creatinine clearance, average pressure, total cholesterol, triglyceride and fasting homocysteine. Endothelial function was evaluated using high-resolution vascular ultrasound.
RESULTSThe levels of homocysteine markedly decreased in group A [(13 +/- 4) micromol/L vs (20 +/- 5) micromol/L, t = 5.3, P < 0.01] after treatment, whereas no significant changes were observed in group B. In group A, endothelium dependent [(12 +/- 5)% vs (9 +/- 5)%, t = 2.9, P < 0.01] and independent [(18 +/- 4)% vs (12 +/- 5)%, t = 3.4, P < 0.01] vasodilatation responses significantly increased after treatment, no significant changes were observed in group B. Endothelium dependent [(9 +/- 6)%, t = 2.8, P < 0.01] and independent [(12 +/- 5)%, t = 3.5, P < 0.01] vasodilatation responses of group A were significantly lower than that of group B after treatment.
CONCLUSIONSVitamin B supplementation can reduce the levels of homocysteine and improve the endothelial function in hyperhomocysteinemic renal-transplant recipients.
Adult ; Drug Therapy, Combination ; Endothelium, Vascular ; drug effects ; physiopathology ; Female ; Folic Acid ; administration & dosage ; Humans ; Hyperhomocysteinemia ; drug therapy ; physiopathology ; Kidney Transplantation ; Male ; Middle Aged ; Treatment Outcome ; Vitamin B 12 ; administration & dosage ; Vitamin B 6 ; administration & dosage
8.Analysis of eleven cases of severe pneumonia in kidney transplant recipients.
Tao XU ; Xiao-feng WANG ; Xiao-song DONG ; Xing-ke QU ; Hai-yun YE ; Xiao-bo HUANG ; Fang HAN ; Shu-kun HOU
Chinese Journal of Surgery 2005;43(10):672-674
OBJECTIVETo analyse retrospectively the diagnosis and treatment of severe pneumonia in kidney transplantation recipients.
METHODSBetween January 1999 and December 2003, 172 adult patients underwent kidney transplantation at our department. In all severe pneumonia cases, empirical therapy was initiated with aztreonam, erythromycin and ganciclovir. And the therapy was switched to proper antibiotics according to the results of sensitivity testing. Responsible pathogen was detected by study of BAL (bronco-alveolar-lavage), sputum and blood specimen. Analyses included cell differential count, cytopathologic examination and cultures for bacteria, fungi and viruses. The immunosuppressive therapy was drastically reduced. Hypoxia was relieved by BiPAP (Bi-level Positive Airway Pressure) or mechanical ventilation if necessary.
RESULTSSeventeen cases (9.9%) of pneumonia were observed in the 172 recipients, only 11 (65%) patients experienced severe pneumonia, 1 (9%) of them died. Fever was the most common symptom on presentation (82%). On presentation 46% of the patients presented with classical clinical syndrome of fever accompanied by cough and dyspnea. Positive rate of BAL and blood culture were 100% and 46% respectively. BiPAP and mechanical ventilation were required in 6 and 2 cases respectively.
CONCLUSIONBAL is preferred for early detection of responsible pathogen. A combination of drastic reduction of the immunosuppressive regimen, implementation of appropriate empirical antibiotics, proper BiPAP or mechanical ventilation are important.
Adult ; Combined Modality Therapy ; Female ; Humans ; Kidney Transplantation ; adverse effects ; Male ; Middle Aged ; Pneumonia ; diagnosis ; etiology ; therapy ; Respiration, Artificial ; Retrospective Studies ; Transplantation, Homologous ; adverse effects
9.Electron paramagnetic resonance in monitoring of nitric oxide production after kidney transplantation in rats.
Tao XU ; Xi CHEN ; Xiao-feng WANG ; Xiao-bo HUANG ; Xing-ke QU ; Hai-yun YE ; Xiao-dong ZHANG ; Shu-kun HOU ; Ji-chuan ZHU
Chinese Medical Journal 2004;117(10):1552-1557
BACKGROUNDMuch research has been focused on ischemia/reperfusion injury (IRI) to the transplanted organs. As a free radical, nitric oxide (NO) plays an important role in IRI. In this study, the production of NO and its functions during IRI were monitored in rat models after allotransplantation of kidney grafts.
METHODSOf 75 male LEW rats, 30 served as donors, and the remaining 45 rats were divided into three groups (15 rats in each group): controls (group 1), kidney allotransplantation followed by bilateral nephrectomy during reperfusion (group 2), 2 hours before operation, donors and recipients were treated with N(G)-nitro L-arginine methyl ester (L-NAME), a NO synthase inhibitor, at a dose of 30 mg/kg (group 3). Bilateral nephrectomies were performed while kidney grafts were reperfused. The kidney grafts were hypothemically stored for 24 hours. The production of NO before and after reperfusion was measured by electron paramagnetic resonance (EPR). The creatinine level, the glomerular filtration rate (GFR) and the protein carbonyl content in tissue samples were recorded on the first and the fifth day after operation. The data were evaluated by one-way analysis of variance. Differences were considered to be statistically significant when a P value was less than 0.05.
RESULTSAfter reperfusion for 15 minutes, the production of NO increased remarkably and kept increasing till 120 minutes, after which the level returned to normal. In group 3, which was pretreated with L-NAME, creatinine levels were higher than those in group 2 at the 24th hour (4.10 +/- 0.50 mg/dl vs. 3.77 +/- 0.42 mg/dl, P < 0.05) and the 120th hour (3.19 +/- 0.79 mg/dl vs. 2.22 +/- 0.53 mg/dl, P < 0.05). GFR levels in group 3 were lower than those in group 2 at the 24th hour (0.50 +/- 0.12 ml/min vs. 0.71 +/- 0.19 ml/min, P < 0.05) and the 120th hour (0.59 +/- 0.38 ml/min vs. 1.27 +/- 0.23 ml/min, P < 0.01). The content of protein carbonyl in tissue samples of group 3 was lower than that in group 2 at the 24th hour (29.01 +/- 7.02 nmol/mg protein vs. 49.39 +/- 13.13 nmol/mg protein, P < 0.05), but was higher than that at the 120th hour (75.71 +/- 16.74 nmol/mg protein vs. 57.93 +/- 15.32 nmol/mg protein, P < 0.05).
CONCLUSIONSAfter transplantation of hypothemically stored kidney grafts, the increased NO production in the early stage has protective effects on the transplanted kidney. Application of L-NAME to inhibit NO production is harmful to the recovery of the renal functions of kidney grafts.
Animals ; Creatinine ; blood ; Electron Spin Resonance Spectroscopy ; Glomerular Filtration Rate ; Kidney Transplantation ; Male ; Nitric Oxide ; biosynthesis ; Oxidation-Reduction ; Proteins ; metabolism ; Rats ; Rats, Inbred Lew ; Reperfusion Injury ; metabolism


Result Analysis
Print
Save
E-mail