First Peoples Hospital of Foshan
First Peoples Hospital of Foshan
Zhou J.,First Peoples Hospital of Foshan |
Yang C.-X.,First Peoples Hospital of Foshan |
Zhong J.-Y.,First Peoples Hospital of Foshan |
Wang H.-B.,First Peoples Hospital of Foshan
NeuroReport | Year: 2013
TRESK gene recombinant adenovirus (10 IU/ml), which has been constructed successfully in our previous study, was implemented through an intrathecal injection. The fact that the method can effectively upregulate the expression of TRESK mRNA in the dorsal root ganglia of spared nerve injury in rats was verified. We also investigated the role of TRESK gene recombinant adenovirus in attenuating tactile allodynia and thermal hyperalgesia in spared nerve injury rats. Spared nerve injury to the sciatic nerve induced persistent tactile allodynia, but had no effect on thermal hyperalgesia. Intrathecal injection of TRESK gene recombinant adenovirus (25 μl) into the region of lumbar enlargement in advance reduced tactile allodynia. Moreover, intrathecal injection of TRESK gene recombinant adenovirus (25 μl) significantly alleviated the activation of astrocytes in spinal cord induced by spared nerve injury. The current study shows that an intrathecal injection of the TRESK gene recombinant adenovirus attenuated the activity of astrocytes in spinal cord, which contributed to relieving neuropathic pain in spared nerve injury rats. According to the result reported in our previous study, attenuating the expression of TRESK in dorsal root ganglia was involved in the development of neuropathic pain. On the basis of these results, we theorized that the therapeutic utility of upregulation of TRESK in dorsal root ganglia was effective in relieving neuropathic pain syndromes induced by peripheral nerve injury. Copyright © Lippincott Williams & Wilkins.
Zhao W.-C.,First Peoples Hospital of Foshan |
Zhang B.,First Peoples Hospital of Foshan |
Liao M.-J.,First Peoples Hospital of Foshan |
Zhang W.-X.,First Peoples Hospital of Foshan |
And 3 more authors.
Neuroscience Letters | Year: 2014
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidases are the main enzymes that produce oxidative stress, which plays an important role in painful diabetic neuropathy. Curcumin has been reported to exert an antinociceptive effect in a rat model of diabetic neuropathy by suppressing oxidative stress in the spinal cord. However, it remains unknown whether the mechanism by which curcumin ameliorates diabetic neuropathy can be attributed to spinal NADPH oxidases. This study was designed to determine the effect of curcumin on diabetic neuropathy and to investigate its precise mechanism in relation to NADPH oxidase-mediating oxidative stress in the spinal cord. Diabetic neuropathy was induced in Sprague-Dawley rats by intraperitoneal injection with 1% streptozotocin (STZ; 60mg/kg). After the onset of diabetic neuropathy, a subset of the diabetic rats received daily intragastric administrations of curcumin (200mg/kg) or intraperitoneal injections of apocynin (2.5mg/kg) for 14 consecutive days, whereas other diabetic rats received equivalent volumes of normal saline (NS). STZ resulted in diabetic neuropathy with hyperglycemia and a lower paw withdrawal threshold (PWT), accompanied by elevations in the expression of the NADPH oxidase subunits p47phox and gp91phox and in the levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA) and a reduction in superoxide dismutase (SOD) activity (P<0.05) in the spinal cord. Both curcumin and apocynin ameliorated diabetic neuropathy. In conclusion, curcumin attenuated neuropathic pain in diabetic rats, at least partly by inhibiting NADPH oxidase-mediating oxidative stress in the spinal cord. © 2013 Elsevier Ireland Ltd.
Liang J.,Guangdong Institute of Cardiovascular Disease |
Xiao G.,First Peoples Hospital of Foshan |
Ji W.,Guangdong Academy of Medical science
Pharmacology | Year: 2011
We investigated whether capsaicin induces itching in skin with existing inflammation. We induced skin inflammation by intradermal injection of complete Freund's adjuvant (CFA) in the neck of mice. Four days later, we injected capsaicin in the same area and counted the number of scratching bouts for 30 min. We examined potential effects on pain in parallel experiments in which CFA and capsaicin were intradermally injected into hind paws. We used the time spent licking the hind paws during the 15 min after capsaicin injection as an estimate of pain. Capsaicin injection into the skin pretreated with CFA, but not into healthy skin, induced scratching. The scratching behavior was reduced by pretreatment with naloxone or capsazepine, selective antagonists for transient receptor potential vanilloid receptor-1 (TRPV1), but not morphine or mepyramine, selective antagonists for histamine 1 receptor. In animals injected with capsaicin into the hind paws, licking behavior was significantly inhibited via a μ-receptor-dependent mechanism. Our results show that TRPV1 activation, which normally induces pain, evokes an itch-related response in the presence of inflammation. This model may be interesting for future studies to explore the mechanism of a painful stimuli-induced itch observed under pathological conditions. Copyright © 2011 S. Karger AG, Basel.
Lai K.,Guangzhou University |
Chen R.,Guangzhou University |
Lin J.,China Japan Friendship Hospital |
Huang K.,Capital Medical University |
And 7 more authors.
Chest | Year: 2013
Background: The causes of chronic cough in China and its relations with geography, seasonality, age, and sex are largely uncertain. Methods: A prospective, multicenter survey was conducted to evaluate patients with chronic cough across five regions in China by using a modified diagnostic algorithm. The effects of geography, seasonality, age, and sex on spectrum of chronic cough were also investigated. Results: The current study evaluated 704 adult patients, including 315 men (44.7%) and 389 women (55.3%). The causes of chronic cough were determined in 640 subjects (90.9%). Common causes included cough variant asthma (CVA) (32.6%), upper airway cough syndrome (UACS) (18.6%), eosinophilic bronchitis (EB) (17.2%), and atopic cough (AC) (13.2%). Collectively, these four causes accounted for 75.2% to 87.6% across five different regions without significant difference (P > .05), although there was variation on single causes. Gastroesophageal reflux-related cough was identified in 4.6% of causes. Seasonality, sex, and age were not associated with the spectrum of chronic cough (all P > .05). Conclusion: CVA, UACS, EB, and AC were common causes of chronic cough in China. Geography, seasonality, age, and sex were not associated with the spectrum of chronic cough. © 2013 American College of Chest Physicians.
Chen Y.,Sun Yat Sen University |
Sun Y.,Sun Yat Sen University |
Liang S.-B.,First Peoples Hospital of Foshan |
Zong J.-F.,Fujian Provincial Tumor Hospital |
And 9 more authors.
Cancer | Year: 2013
background The objective of this study was to evaluate the long-term survival and late toxicities of concurrent-adjuvant chemotherapy in patients with stage III through IVB nasopharyngeal carcinoma (NPC) from endemic regions of China. methods Patients with stage III to IVB NPC were assigned randomly to receive radiotherapy (RT) alone (the RT group) or RT plus concurrent adjuvant chemotherapy (the CRT group). CRT patients received concurrent cisplatin (40 mg/m2) weekly during RT followed by cisplatin (80 mg/m2) and fluorouracil (800 mg/m2 daily for 5 days) every 4 weeks for 3 cycles. The primary endpoint was overall survival. results In total, 316 patients underwent randomization, with 158 to each group. At a median follow-up of 70 months, the 5-year overall survival rate was 72% for the CRT group and 62% for the RT group (hazard ratio, 0.69; 95% confidence interval, 0.48-0.99; P =.043). Failure-free survival was significantly higher in the CRT group (P =.020). Most late toxicities were similar (33% vs 26%; P =.089), except for cranial neuropathy (P =.042), peripheral neuropathy (P =.041), and ear damage (P =.048), which were significantly increased in the CRT group. conclusions The addition of concurrent adjuvant chemotherapy to RT provides survival benefits to patients with stage III through IVB NPC in endemic regions of China, and it does not increase most late toxicities apart from cranial neuropathy, peripheral neuropathy, and ear damage. © 2013 American Cancer Society.
Chen L.,Sun Yat Sen University |
Xu Y.,Sun Yat Sen University |
Zhao J.,Sun Yat Sen University |
Zhang Z.,Sun Yat Sen University |
And 4 more authors.
PLoS ONE | Year: 2014
Growing evidence indicates that bone marrow-derived mesenchymal stem cells (BM-MSCs) enhance wound repair via paracrine. Because the extent of environmental oxygenation affects the innate characteristics of BM-MSCs, including their stemness and migration capacity, the current study set out to elucidate and compare the impact of normoxic and hypoxic cell-culture conditions on the expression and secretion of BM-MSC-derived paracrine molecules (e.g., cytokines, growth factors and chemokines) that hypothetically contribute to cutaneous wound healing in vivo. Semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA) analyses of normoxic and hypoxic BM-MSCs and their conditioned medium fractions showed that the stem cells expressed and secreted significantly higher amounts of basic fibroblast growth factor (bFGF),vascular endothelial growth factor A (VEGF-A) interleukin 6 (IL-6) and interleukin 8 (IL-8) under hypoxic conditions. Moreover, hypoxic BM-MSC-derived conditioned medium (hypoCM) vs. normoxic BM-MSC-derived conditioned medium (norCM) or vehicle control medium significantly enhanced the proliferation of keratinocytes, fibroblasts and endothelial cells, the migration of keratinocytes, fibroblasts, endothelial cells and monocytes, and the formation of tubular structures by endothelial cells cultured on Matrigel matrix. Consistent with these in vitro results, skin wound contraction was significantly accelerated in Balb/c nude mice treated with topical hypoCM relative to norCM or the vehicle control. Notably increased in vivo cell proliferation, neovascularization as well as recruitment of inflammatory macrophages and evidently decreased collagen I, and collagen III were also found in the hypoCM-treated group. These findings suggest that BM-MSCs promote murine skin wound healing via hypoxia-enhanced paracrine. © 2014 Chen et al.
Shao D.,Guangdong Academy of Medical Science |
Wang S.-X.,Guangdong Academy of Medical Science |
Liang C.-H.,Guangdong Academy of Medical Science |
Gao Q.,First Peoples Hospital of Foshan
Journal of Nuclear Cardiology | Year: 2011
Objective: To assess the feasibility of 18F-FDG PET-CT for the differentiation of malignancy from benign lesions of the heart and the pericardium. Methods: A total of 23 cases (malignancy:benign = 13:10) with cardiac and pericardial lesions, confirmed by pathology or on clinical grounds, were analyzed in this study. All lesions were evaluated semi-quantitatively using maximum standard uptake values (SUV max) and SUV max lesion/blood, and the density of the heart and pericardium lesions and the relation with surrounding tissues were evaluated. The differences of SUV max and SUV max lesion/blood between benign and malignant lesions were analyzed by the Mann-Whitney test. Subsequently, the diagnostic sensitivity, specificity, accuracy, positive predictive value (PPV), and negative predictive value (NPV) were calculated for CT and PET-CT, respectively. Results: The maximum SUV showed significant difference between malignancy (avg ± SD 6.5) and benign (avg ± SD 1.5) (Z = -3.601, P < .01), the SUV max lesion/blood of malignancy and benign were avg ± SD 3.4 and avg ± SD 0.9, respectively, also with a significant difference (Z = -3.600, P < .01). In this pilot study, the optimal cutoff value to separate benign vs malignant lesions of SUV max was 3.5-4.0 and the cutoff for SUV max lesion/blood was 1.3-2.0. The sensitivity, specificity, accuracy, PPV, and NPV of CT and PET-CT were 76.9%(10/13), 100.0%(10/10), 87.0%(20/23), 100.0%(10/10), 76.9%(10/13) and 100.0%(13/13), 90.0%(9/10), 95.7%(22/23), 92.9%(13/14), 100.0%(9/9), respectively. Conclusion: 18F-FDG PET-CT appears promising for correctly differentiating benign vs malignant cardiac and pericardial lesions. © 2011 American Society of Nuclear Cardiology.
Yan X.,Wenzhou Medical College |
Li G.,First Peoples Hospital of Foshan |
Shang H.,First Peoples Hospital of Foshan |
Wang G.,First Peoples Hospital of Foshan |
And 3 more authors.
Gynecologic Oncology | Year: 2011
Objectives: This study aims to evaluate the morbidity, oncological outcome, and prognostic factors of cervical cancer patients treated with laparoscopic radical hysterectomy and pelvic lymphadenectomy (LRH). Methods: Patients with cervical cancer undergoing LRH at the First People's Hospital of Foshan between August 1998 and March 2010 were enrolled in this study. The medical records were reviewed. Results: A total of 240 patients were identified. According to FIGO stage, the number of patients with stage Ia2, Ib1, Ib2, IIa, and IIb was 2, 163, 34, 35, and 6, respectively. The conversion rate was 1.25%. Intraoperative and postoperative complications occurred in 7.08% and 9.16% patients, respectively. Other medical problems included 74 cases (30%) of bladder dysfunction. Excluding the lost cases, the median follow-up of 221 cases was 35 months, and 5-year survival rate for Ia2, Ib1, Ib2, IIa was 100%, 82%, 66%, 60%, respectively. Univariate analysis showed factors impacting the survival rate were FIGO stage > Ib1, non-squamous histologic type, deep cervical stromal invasion, and lymph node metastasis (P = 0.027, 0.023, 0.007, 0.000). The Cox-proportional hazards regression analysis indicated that only lymph node metastasis (OR = 3.827, P = 0.000) was independent of poor prognostic factor. The 5-year survival rates in Ib1 were 88% with negative lymph nodes and 59% with positive lymph nodes (P = 0.000). Conclusions: Our data demonstrate that LRH can be performed in stage Ia2-Ib1 or less advanced node negative cervical cancer patients without compromising survival. The feasibility of LRH for more advanced patients needs further investigations. © 2010 Elsevier Inc. All rights reserved.
Zhen Z.J.,First Peoples Hospital of Foshan |
Lau W.Y.,Chinese University of Hong Kong |
Wang F.J.,First Peoples Hospital of Foshan |
Lai E.C.H.,Chinese University of Hong Kong
World Journal of Surgery | Year: 2010
Background: A good postoperative outcome after partial hepatectomy is highly dependent on limiting operative blood loss. This study evaluated the feasibility and efficacy of the tourniquet method compared with the Pringle maneuver in laparoscopic liver resection for hepatocellular carcinoma (HCC) in the left liver. Methods: A retrospective, nonrandomized, comparative study for laparoscopic liver resection for HCC in the left liver using the Pringle maneuver (group A) or the tourniquet method (group B) was initiated in our center between March 2004 and October 2008. Results: Sixteen patients (group A) underwent laparoscopic liver resection using the Pringle maneuver, and 13 patients (group B) underwent laparoscopic liver resection using the tourniquet method. No differences in operation time, operative blood loss, perioperative blood transfusion, and perioperative morbidity were found between the two groups. Both groups had no postoperative mortality. The liver enzymes were significantly elevated in group A compared with group B. Group B patients also had significantly faster recovery of liver function. The postoperative hospital stay for group B was significantly shorter than group A (mean, 5.6 days vs. 8.3 days). Conclusions: Both techniques of vascular control were equally safe, efficacious, and feasible for patients undergoing laparoscopic left-sided liver resection. The tourniquet method gave a wider safety margin for patients with chronic liver disease with a compromised hepatic reserve by causing less ischemia-reperfusion injury to the remnant liver. © 2009 Société Internationale de Chirurgie.
Pan L.,Peoples Hospital of Sanshui District |
Zhang P.,First Peoples Hospital of Foshan |
Yin Q.,Liuhuaqiao Hospital
International Journal of Surgery | Year: 2014
Objectives: This study aimed to compare the clinical efficacies of percutaneous endoscopic lumbar discectomy (PELD) and traditional open lumbar discectomy (OD). Methods: The pre-operative and post-operative blood loss, hospital stays and wound sizes of the patients in the two groups were recorded. Enzyme-Linked immunosorbent assay was used to measure the changes of interleukin-6 (IL-6), C-reactive protein (CRP) and creatine phosphokinase (CPK) pre-operation and 1h, 6h, 12h, 24h and 48h after corresponding surgery. Visual Analog Scale and Modified MacNab Criteria were used to assess post-operative results. Results: Patients in the PELD group had less blood loss (p<0.01), shorter hospitalization hours (p<0.01) and smaller surgical wounds (p<0.01) than the patients underwent traditional OD surgery. MacNab evaluated that the levels of satisfaction were above 90% in both groups post-operative six months. There was no significant difference in pain index between the two groups (p>0.05). Furthermore, the levels of CRP, CPK and IL-6 in the PELD group were all lower than those in the OD group with a significant difference (p<0.01). Conclusion: The PELD had less damage to human tissues than the traditional OD. PELD has a clear promotional value in clinical. © 2014 Surgical Associates Ltd.