Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 23
Filter
1.
J Clin Invest ; 132(14)2022 07 15.
Article in English | MEDLINE | ID: mdl-35617029

ABSTRACT

Intractable functional constipation (IFC) is the most severe form of constipation, but its etiology has long been unknown. We hypothesized that IFC is caused by refractory infection by a pathogenic bacterium. Here, we isolated from patients with IFC a Shigella species - peristaltic contraction-inhibiting bacterium (PIB) - that significantly inhibited peristaltic contraction of the colon by production of docosapentenoic acid (DPA). PIB colonized mice for at least 6 months. Oral administration of PIB was sufficient to induce constipation, which was reversed by PIB-specific phages. A mutated PIB with reduced DPA was incapable of inhibiting colonic function and inducing constipation, suggesting that DPA produced by PIB was the key mediator of the genesis of constipation. PIBs were detected in stools of 56% (38 of 68) of the IFC patients, but not in those of non-IFC or healthy individuals (0 of 180). DPA levels in stools were elevated in 44.12% (30 of 68) of the IFC patients but none of the healthy volunteers (0 of 97). Our results suggest that Shigella sp. PIB may be the critical causative pathogen for IFC, and detection of fecal PIB plus DPA may be a reliable method for IFC diagnosis and classification.


Subject(s)
Gastrointestinal Motility , Shigella , Animals , Colon , Constipation/diagnosis , Constipation/genetics , Feces , Humans , Mice , Shigella/genetics
2.
Ann Transl Med ; 9(4): 319, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33708946

ABSTRACT

BACKGROUND: Coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has triggered a global pandemic. Healthcare workers are placed at an elevated risk of nosocomial cross-infection from clinical exposure. One diagnostic criterion for COVID-19 is a positive result from a real-time reverse transcriptase-polymerase chain reaction (qRT-PCR) assay of pharyngeal swab specimens, which has been a routine procedure for healthcare workers during the outbreak. In the context of a global shortage of personal protective equipment (PPE), we aimed to lower the probability of clinical cross-infection without impacting the results of pharynx sampling through an optimized pharyngeal swab assisted device (OPAD). METHODS: To evaluate the efficacy and feasibility of an OPAD for the detection of SARS-CoV-2, 22 confirmed COVID-19 cases were enrolled in our self-controlled study. The results of two pharyngeal sampling qRT-PCR tests using the OPAD or the traditional method were recorded each. Clinical data including baseline characteristics, laboratory tests, and computed tomography (CT) results were also collected. The procedure duration and levels of pharynx exposure with the OPAD, and the diagnostic consistency between the OPAD and the traditional method for pharyngeal sampling qRT-PCR, were evaluated individually. Additionally, a questionnaire was designed for healthcare workers who had performed the pharyngeal swab to deepen our understanding of their attitude during their service on the frontline. RESULTS: In all 44 samplings (22 samples with each method), the qRT-PCR results of 18 pairs (81.82%) were consistent, while 3 (13.64%) were single positive with the OPAD. The positive rate was slightly higher with the OPAD (54.55%, 12/22) than with the traditional method (45.45%, 10/22). Using the OPAD, the average procedure duration of sampling was 30 s (30±13 s). Pharynx exposure was excellent in 21 subjects (95.45%, 21/22), which meant that the operator could acquire the swabs without difficulty. CONCLUSIONS: As the COVID-19 pandemic escalates, our OPAD has identical efficacy compared to the traditional method for pharyngeal swabs, and it can also contribute to protecting the safety of healthcare workers.

5.
Curr Med Sci ; 40(2): 380-388, 2020 Apr.
Article in English | MEDLINE | ID: mdl-32337700

ABSTRACT

The intravenous use of nalmefene has been found to exert neuroprotective effect in patients with severe traumatic brain injury and acute cerebral infarction; nonetheless, it is unknown whether nalmefene alleviates delayed neurocognitive recovery. Our purpose of the current research was to clarify the impact of nalmefene on delayed neurocognitive recovery in aged patients experiencing video-assisted thoracic surgery (VATS) with intraoperative use of one lung ventilation (OLV). The present study involved 120 patients undergoing selective VATS, randomized to accept low-dose nalmefene (N1 group, n=40), high-dose nalmefene (N2 group, n=40) or equal volume of physiologic saline (control group, n=40). A battery of neuropsychological tests were used to estimate cognitive function 1 day before surgery (t0) and 10 days after surgery or before discharge (t1). Regional cerebral oxygen saturation (rSO2) was detected 5 min before induction (t0), 5 min after induction (t1), 15 and 60 min after onset of OLV (t2 and t3), and 15 min after termination of OLV (t4). The plasma values of interleukin (IL)-1ß, IL-6, tumor necrosis factor (TNF)-α and adiponectin (ADP) were also detected prior to induction of anesthesia (T0), 1 h, 2 h and 6 h after surgery (T1, T2, T3). On t1, delayed neurocognitive recovery occurred in 5/40 (12.5%) patients of N1 group, in 5/40 (12.5%) patients of N2 group and in 13/40 (32.5%) patients of control group (P0.05). There were no statistical differences in rSO2 among three groups at different time points. At T1, T2 and T3, IL-1ß, IL-6 and TNF-α values significantly increased and ADP value significantly decreased (P0.05) in control group. In contrast, at T1, T2 and T3, IL-1ß, IL-6 and TNF-α values decreased and ADP value decreased less in N1 and N2 groups (P0.05). At T1, T2 and T3, IL-1ß, IL-6 and TNF-α concentrations presented a trend of N2 group N1 group control group and ADP presented a trend of N2 groupN1 groupcontrol group (P0.05). The result of our present research supports the hypothesis that the perioperative intravenous treatment with nalmefene to VATS with OLV ameliorates postoperative cognitive function and decreases the incidence of delayed neurocognitive recovery, most likely by suppression of inflammatory responses.


Subject(s)
Naltrexone/analogs & derivatives , Neurocognitive Disorders/prevention & control , One-Lung Ventilation/adverse effects , Thoracic Surgery, Video-Assisted/adverse effects , Administration, Intravenous , Aged , Dose-Response Relationship, Drug , Double-Blind Method , Female , Humans , Male , Middle Aged , Naltrexone/administration & dosage , Naltrexone/pharmacology , Neurocognitive Disorders/etiology , Perioperative Care , Recovery of Function/drug effects , Regional Blood Flow/drug effects
6.
Neural Regen Res ; 15(7): 1333-1339, 2020 Jul.
Article in English | MEDLINE | ID: mdl-31960821

ABSTRACT

Glucagon-like peptide-1 receptor has anti-apoptotic, anti-inflammatory, and neuroprotective effects. It is now recognized that the occurrence and development of chronic pain are strongly associated with anti-inflammatory responses; however, it is not clear whether glucagon-like peptide-1 receptor regulates chronic pain via anti-inflammatory mechanisms. We explored the effects of glucagon-like peptide-1 receptor on nociception, cognition, and neuroinflammation in chronic pain. A rat model of chronic pain was established using left L5 spinal nerve ligation. The glucagon-like peptide-1 receptor agonist exendin-4 was intrathecally injected into rats from 10 to 21 days after spinal nerve ligation. Electrophysiological examinations showed that, after treatment with exendin-4, paw withdrawal frequency of the left limb was significantly reduced, and pain was relieved. In addition, in the Morris water maze test, escape latency increased and the time to reach the platform decreased following exendin-4 treatment. Immunohistochemical staining and western blot assays revealed an increase in the numbers of activated microglia and astrocytes in the dentate gyrus of rat hippocampus, as well as an increase in the expression of tumor necrosis factor alpha, interleukin 1 beta, and interleukin 6. All of these effects could be reversed by exendin-4 treatment. These findings suggest that exendin-4 can alleviate pain-induced neuroinflammatory responses and promote the recovery of cognitive function via the glucagon-like peptide-1 receptor pathway. All experimental procedures and protocols were approved by the Experimental Animal Ethics Committee of Renmin Hospital of Wuhan University of China (approval No. WDRM 20171214) on September 22, 2017.

7.
Curr Med Sci ; 39(5): 690-694, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31612384

ABSTRACT

The occurrence of major emergencies often leads to environmental damage, property damage, health challenges and life threats. Despite the tremendous progress we have made in responding to the many challenges posed by disasters in recent years, there are still many shortcomings. As an emerging technology widely used in recent years, virtual reality (VR) technology is very suitable for many fields of disaster medicine, such as basic education, professional training, psychotherapy, etc. The purpose of this review article is to introduce the application of VR technology in the disaster medical field and prospect its trend in the future.


Subject(s)
Disaster Medicine/methods , Emergency Medicine/methods , Health Knowledge, Attitudes, Practice , Virtual Reality , Disaster Medicine/education , Disasters , Emergency Medicine/education , First Aid/methods , Humans , Imagery, Psychotherapy/methods , Patient Education as Topic/organization & administration
8.
Curr Med Sci ; 39(1): 1-6, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30868484

ABSTRACT

Mixed reality (MR) technology is a new digital holographic image technology, which appears in the field of graphics after virtual reality (VR) and augmented reality (AR) technology, a new interdisciplinary frontier. As a new generation of technology, MR has attracted great attention of clinicians in recent years. The emergence of MR will bring about revolutionary changes in medical education training, medical research, medical communication, and clinical treatment. At present, MR technology has become the popular frontline information technology for medical applications. With the popularization of digital technology in the medical field, the development prospects of MR are inestimable. The purpose of this review article is to introduce the application of MR technology in the medical field and prospect its trend in the future.


Subject(s)
Biomedical Technology/methods , Delivery of Health Care/methods , Education, Medical/methods , Computer Simulation , Holography , Humans , Imaging, Three-Dimensional , Virtual Reality
9.
Neurochem Res ; 44(2): 450-464, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30560396

ABSTRACT

Histone acetylation levels can be upregulated by treating cells with histone deacetylase inhibitors (HDACIs), which can induce autophagy. Autophagy flux in the spinal cord of rats following the left fifth lumber spinal nerve ligation (SNL) is involved in the progression of neuropathic pain. Suberoylanilide hydroxamic acid (SAHA), one of the HDACIs can interfere with the epigenetic process of histone acetylation, which has been shown to ease neuropathic pain. Recent research suggest that SAHA can stimulate autophagy via the mammalian target of rapamycin (mTOR) pathway in some types of cancer cells. However, little is known about the role of SAHA and autophagy in neuropathic pain after nerve injury. In the present study, we aim to investigate autophagy flux and the role of the mTOR pathway on spinal cells autophagy activation in neuropathic pain induced by SNL in rats that received SAHA treatment. Autophagy-related proteins and mTOR or its active form were assessed by using western blot, immunohistochemistry, double immunofluorescence staining and transmission electron microscopy (TEM). We found that SAHA decreased the paw mechanical withdrawal threshold (PMWT) of the lower compared with SNL. Autophagy flux was mainly disrupted in the astrocytes and neuronal cells of the spinal cord dorsal horn on postsurgical day 28 and was reversed by daily intrathecal injection of SAHA (n = 100 nmol/day or n = 200 nmol/day). SAHA also decreased mTOR and phosphorylated mTOR (p-mTOR) expression, especially p-mTOR expression in astrocytes and neuronal cells of the spinal dorsal horn. These results suggest that SAHA attenuates neuropathic pain and contributes to autophagy flux in astrocytes and neuronal cells of the spinal dorsal horn via the mTOR signaling pathway.


Subject(s)
Autophagy/drug effects , Neuralgia/drug therapy , TOR Serine-Threonine Kinases/drug effects , Vorinostat/pharmacology , Animals , Astrocytes/drug effects , Astrocytes/metabolism , Disease Models, Animal , Histone Deacetylase Inhibitors/metabolism , Histone Deacetylase Inhibitors/pharmacology , Male , Neuralgia/metabolism , Rats, Sprague-Dawley , Signal Transduction/drug effects , Spinal Cord Dorsal Horn/drug effects , Spinal Cord Dorsal Horn/metabolism , Spinal Nerves/drug effects , Spinal Nerves/injuries
10.
Curr Med Sci ; 38(4): 666-671, 2018 Aug.
Article in English | MEDLINE | ID: mdl-30128876

ABSTRACT

The aim of the present study was to investigate the effect of lipoxin A4 (LXA4) pretreatment on cognitive function of aged rats after global cerebral ischemia reperfusion, and to explore its possible mechanism. Thirty-six aged male Sprague-Dawley rats were randomly divided into three groups (n=2 each): sham-operation group (S group), global cerebral ischemia reperfusion group (I/R group) and LXA4-pretreatment group (L group). The rat model of global cerebral ischemia reperfüsion was established by occlusion of the bilateral common carotid artery with hypotension. The cognitive function of rats was determined by a step-down type passive avoidance test and Morris Water Maze test on the third day after reperfUsion. Rats were sacrificed after Water Maze test and the pathological changes of hippocampal CAI region were observed and the related inflammatory mediators were determined. As compared with S group, the escape latency in I/R group was prolonged from the first day to the fifth day, while that in L group was prolonged from the first day to the third day. The retention time in I/R group and L group in the first quadrant was shortened. The reaction time, frequency of reaction mistake and frequency of escape mistake in I/R group increased, and the latent period shortened. The frequency of escape mistake in L group increased, and the damage in the hippocampal CAI region of I/R group and L group was obvious. The levels of S-100ß, TNP-α, IL-lß, IL-10 and NF-κB in I/R group and L group increased. As compared with I/R group, the escape latency in L group was shortened from the first day to the fifth day, and the retention time in the first quadrant prolonged. The reaction time, frequency of reaction mistake and frequency of escape mistake in L group decreased, and the latent period prolonged. The damage in the hippocampal CAI region of L group was alleviated as well. The levels of S-100ß, TNP-α, IL-lß and NF-κB in L group decreased, and those of IL-10 increased. It can be concluded that LXA4 pretreatment can improve the cognitive function in aged rats after global cerebral ischemia reperfusion probably by inhibiting the inflammatory reaction.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Brain Ischemia/drug therapy , Cognition , Lipoxins/therapeutic use , Reperfusion Injury/drug therapy , Animals , Anti-Inflammatory Agents, Non-Steroidal/administration & dosage , CA1 Region, Hippocampal/blood supply , CA1 Region, Hippocampal/metabolism , CA1 Region, Hippocampal/pathology , Cytokines/genetics , Cytokines/metabolism , Lipoxins/administration & dosage , Male , Maze Learning , NF-kappa B/genetics , NF-kappa B/metabolism , Rats , Rats, Sprague-Dawley , S100 Calcium Binding Protein beta Subunit/genetics , S100 Calcium Binding Protein beta Subunit/metabolism
11.
World J Surg Oncol ; 16(1): 41, 2018 Mar 02.
Article in English | MEDLINE | ID: mdl-29499701

ABSTRACT

BACKGROUND: During the last decade, total laparoscopic and laparoscopic-assisted distal gastrectomy for gastric cancer patients has been developed as alternatives to open resection. In recent years, this minimally invasive surgery has been extended using robotic-assisted surgery. CASE PRESENTATION: Here, we report a surgical intervention using a Da Vinci surgical robot in which a lower two-third stomach resection with subsequent Billroth II gastrojejunostomy was performed. The patient was a 53-year-old male with complete situs inversus gastric cancer who had received 2 cycles of neo-adjuvant oxaliplatin combined with S-1 medication. The operation took 3 h in total without complications. The amount of bleeding was about 50 mL, and on day 5 after the operation, the patient was discharged. CONCLUSIONS: This is the first report of a successful robot-assisted gastric cancer resection of advanced gastric cancer in a patient with the anatomical abnormality of situs inversus totalis.


Subject(s)
Adenocarcinoma/surgery , Anastomosis, Surgical/methods , Gastrectomy/methods , Gastroenterostomy/methods , Robotic Surgical Procedures/methods , Situs Inversus/surgery , Stomach Neoplasms/surgery , Adenocarcinoma/complications , Adenocarcinoma/pathology , Follow-Up Studies , Humans , Laparoscopy , Male , Middle Aged , Prognosis , Situs Inversus/complications , Situs Inversus/pathology , Stomach Neoplasms/complications , Stomach Neoplasms/pathology
12.
Dis Markers ; 2017: 7439698, 2017.
Article in English | MEDLINE | ID: mdl-29375177

ABSTRACT

OBJECTIVE: Long noncoding RNAs (lncRNAs) have been reported to play vital roles in non-small-cell lung cancer (NSCLC). Recently, long noncoding RNA Linc00152 has been reported to play important roles in various cancers. In this study, our aim was to investigate its expression pattern and clinical significance and further evaluate its diagnostic value for NSCLC. METHODS: The levels of Linc00152 were detected in NSCLC tissues and plasma samples by quantitative real-time PCR (qRT-PCR). Receiver operating characteristic (ROC) curves were depicted to evaluate the diagnostic value. RESULTS: We found that Linc00152 levels were upregulated in both NSCLC tissues and plasma samples. Plasma Linc00152 levels were significantly lower in postoperative samples than in preoperative samples. Besides, high Linc00152 expression was significantly correlated with tumor size (r = 0.293, P = 0.005) and tumor stage (r = 0.324, P = 0.011). The ROC curves indicated that plasma Linc00152 has high diagnostic accuracy for NSCLC, and the area under curve (AUC) for NSCLC versus healthy was 0.816 (95% CI: 0.757-0.875). Moreover, we found that the combination of Linc00152 and CEA could provide a more powerful diagnosis efficiency than Linc00152 or CEA alone (AUC = 0.881, 95% CI: 0.836-0.926). CONCLUSIONS: Plasma Linc00152 could serve as a promising biomarker for diagnosing and monitoring NSCLC.


Subject(s)
Biomarkers, Tumor/blood , Carcinoma, Non-Small-Cell Lung/blood , Lung Neoplasms/blood , RNA, Long Noncoding/blood , Female , Humans , Male , Middle Aged , Sensitivity and Specificity
13.
Nanoscale Res Lett ; 11(1): 487, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27822909

ABSTRACT

In this study, a three-dimensional chitosan-gelatin/nanohydroxyapatite (ChG/nHaP) scaffold was successfully fabricated and characterized in terms of swelling, degradation, cell proliferation, cell attachment, and mineralization characterizations. The ChG/nHaP scaffold was fabricated with a mean pore size of 100-180 µm. Our results showed that the physicochemical and biological properties of the scaffolds were affected by the presence of HaP. The swelling and degradation characteristics of the ChG scaffold were remarkably decreased by the addition of HaP. On the other hand, the presence of HaP remarkably improved the MC3T3-E1 cell attachment and cell growth in the scaffold membrane. The biocompatible nature of the ChG/nHaP scaffold leads to the development of finely scaled mineral deposits on the scaffold membrane. Thus, HaP played an important role in improving the biological performance of the scaffold. Therefore, the ChG/nHaP scaffold could be applied as a suitable material for bone tissue engineering applications.

14.
Asian Pac J Trop Med ; 9(8): 786-90, 2016 Aug.
Article in English | MEDLINE | ID: mdl-27569889

ABSTRACT

OBJECTIVE: To discuss the role of intestinal flora imbalance in the pathogenesis of pouchitis. METHODS: The pouchitis rat model was established and the faeces sample and the mucous membrane sample were collected regularly, in which the bacterial nucleic acids were extracted for quantitative analysis of the intestinal flora in the samples through using the real-time quantitative PCR technique and high energy sequencing technology. RESULTS: The disorder phenomenon of the intestinal flora appeared at the 7th day of the experiment, and the pouchitis was presented at the 21st day of the experiment. At the 31st day of the experiment, compared to control group and non-pouchitis group, the quantity of Bifidobacterium and the Lactobacillus of the pouchitis model rats in the mucous membrane sample and the faeces sample were significantly decreased (P < 0.05), and the Bacteroidetes, Faecalibacterium prausnitzii and XIV Clostridium leptum subgroup in the mucous membrane of pouchitis were significantly decreased (P < 0.05). The IV Clostridium coccoides group was the main flora in the mucous membrane of pouchitis, the bacterial diversity of non-pouchitis group and control group was significantly higher than that of the pouchitis group (P < 0.05). CONCLUSIONS: The intestinal flora imbalance is one of the factors that cause the incidence of the pouchitis; this study provides a clue of the pathogenesis and treatment direction of the intestinal inflammatory disease.

15.
J Huazhong Univ Sci Technolog Med Sci ; 36(2): 231-236, 2016 Apr.
Article in English | MEDLINE | ID: mdl-27072968

ABSTRACT

This study aimed to examine the clinical and radiographic outcomes of primary total knee arthroplasy (TKA) with use of NexGen® Legacy® Constrained Condylar Knee (CCK) prosthesis for severe knee deformity. Clinical data of 46 patients (48 knees in total, aged 61 years on average) with severe knee deformity who underwent TKA with NexGen® Legacy® CCK prosthesis between December 2007 and February 2012 were retrospectively analyzed. There were 34 knees with severe valgus with incompetent medial collateral ligament, 11 knees with severe flexion contracture with inability to achieve knee balancing in flexion and extension by posterior soft tissue release, 2 knees with Charcot arthritis with severe varus and bone loss, and 1 with traumatic osteoarthritis with severe varus and ligamentous instability. The mean duration of follow-up was 71 months (range 40-90 months). The New Knee Society scoring (NKSS) system and the Hospital for Special Surgery (HSS) score were used to evaluate the functional and clinical outcomes. Visual Analogue Scale (VAS) was used for pain measurement and Knee Society criteria for evaluation of radiological images. The results showed that, in the total 48 knees, 1 case of loosening due to short-stem tibial component at 3 months post-operatively underwent revision. The 6-year prosthesis survival rate in this cohort was 97.9%. There was no component infection occurring within 6 years. Significant post-operative improvements were found in NKSS and HSS scores. Patient satisfaction was significantly increased. Pain score was decreased significantly. Total functional score was improved from 31.46±11.43 to 86.42±8.87, range of motion (ROM) from 42.42°±23.57° to 95.31°±23.45° and the flexion contracture from 5.31°±7.87° to 0.92°±1.80°. Preoperative radiographic study showed excessive valgus (≥7°) in 37 knees, and varus deformity in 3 knees. Post-operative femorotibial alignment was valgus 3.88°±1.76° in 48 knees. Antero/posterior (A/P) view of X-ray films showed 4 radiolucent lines (RLL) in 48 tibial components. It was concluded that TKA with CCK is effective for the treatment of the severe unstable knee that cannot be balanced by soft tissue.


Subject(s)
Arthroplasty, Replacement, Knee/adverse effects , Gout/surgery , Leg Bones/surgery , Osteoarthritis/surgery , Pain/etiology , Prostheses and Implants/adverse effects , Wound Infection/etiology , Adult , Aged , Aged, 80 and over , Arthroplasty, Replacement, Knee/methods , Female , Humans , Male , Middle Aged , Patient Satisfaction , Postoperative Complications
16.
World J Gastroenterol ; 21(47): 13332-8, 2015 Dec 21.
Article in English | MEDLINE | ID: mdl-26715817

ABSTRACT

AIM: To describe the application of complete robotic gastrectomy with transvaginal specimen extraction (TVSE) for gastric cancer patients. METHODS: Between July and November 2014, eight female patients who were diagnosed with gastric adenocarcinoma underwent a TVSE following a full robot-sewn gastrectomy. According to the tumor location, the patients were allocated to two different groups; two patients received robotic total gastrectomy with TVSE and the other six received robotic distal gastrectomy with TVSE. RESULTS: Surgical procedures were successfully performed in all eight cases without conversion. The mean age was 55.3 (range, 42-69) years, and the mean body mass index was 23.2 (range, 21.6-26.0) kg/m(2). The mean total operative time and blood loss were 224 (range, 200-298) min and 62.5 (range, 50-150) mL, respectively. The mean postoperative hospital stay was 3.6 (range, 3-5) d. The mean number of lymph nodes resected was 23.6 (range, 17-27). None was readmitted within 30 d of postoperation. During the follow-up, no stricture developed nor was any anastomotic leakage detected. CONCLUSION: It is possible to perform a TVSE following a full robot-sewn gastrectomy with standard D2 lymph node resection for female gastric cancer patients.


Subject(s)
Adenocarcinoma/surgery , Gastrectomy/methods , Natural Orifice Endoscopic Surgery/methods , Stomach Neoplasms/surgery , Vagina , Adenocarcinoma/secondary , Adult , Aged , Blood Loss, Surgical , Female , Gastrectomy/adverse effects , Humans , Length of Stay , Lymph Node Excision , Lymphatic Metastasis , Middle Aged , Natural Orifice Endoscopic Surgery/adverse effects , Operative Time , Robotic Surgical Procedures/adverse effects , Stomach Neoplasms/pathology , Time Factors , Treatment Outcome
17.
J Huazhong Univ Sci Technolog Med Sci ; 34(3): 403-407, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24939307

ABSTRACT

The effect of the complement C1q expression on total hepatic ischemia-reperfusion (I/R) injury in rats was investigated. Sixty healthy male Sprague Dawley (SD) rats weighing 180-200 g were randomly divided into 5 groups: sham-operation group (S group, n=12); group of I/R for 1 h (I/R 1 h group, n=12); group of I/R for 3 h (I/R 3 h group, n=12); group of I/R for 6 h (I/R 6 h group, n=12); group of I/R for 24 h (I/R 24 h group, n=12). The hepatic I/R model of rats was established, and liver tissues were obtained 1 h, 3 h, 6 h and 24 h after hepatic I/R, respectively. Furthermore, the tissues were stained using hematoxylin-eosin, and the liver injuries of rats were observed using a microscope. The malondialdehyde (MDA) level and superoxide dismutase (SOD) activity in liver tissue were determined. Real-time polymerase chain reaction (PCR) and Western blotting were used to detect the expression levels of C1q mRNA and protein, respectively. As compared with the S group, the histopathological changes in I/R 1 h-24 h groups were gradually aggravated with the extension of I/R time. As compared with the S group, SOD activity and MDA content in the I/R groups were reduced and increased respectively with the extension of I/R time (P<0.01). Furthermore, the C1q expression at mRNA and protein levels in the I/R groups (especially in the I/R 3 h group) was significantly higher than that in the S group (P<0.05). It is suggested that C1q expression may play a principal role in hepatic I/R injury, particularly at the early stage of perfusion.


Subject(s)
Complement C1q/genetics , Gene Expression , Liver/metabolism , Reperfusion Injury/physiopathology , Animals , Blotting, Western , Complement C1q/metabolism , Liver/blood supply , Male , Malondialdehyde/metabolism , Random Allocation , Rats , Rats, Sprague-Dawley , Reverse Transcriptase Polymerase Chain Reaction , Superoxide Dismutase/metabolism , Time Factors
18.
Food Chem ; 143: 530-5, 2014 Jan 15.
Article in English | MEDLINE | ID: mdl-24054277

ABSTRACT

Regioselective oxidation was applied to commercial curdlan for the preparation of its water-soluble derivatives with improved antioxidant activities, using a 4-acetamido-2,2, 6,6-tetramethylpiperidine-1-oxyl radical/NaClO/NaClO2 system at pH 4.8 and 40°C. The structural features, molecular properties, and chain conformations of the oxidised curdlans were determined using Fourier transform (FT) infrared and FT Raman spectroscopy, carbon nuclear magnetic resonance, X-ray diffraction, and size-exclusion chromatography with multi-angle laser-light scattering analyses. The C6 primary hydroxyls of curdlan were successfully oxidised into carboxylate groups with less depolymerization, and no aldehyde groups were formed during oxidation. The crystalline region of curdlan was destroyed after oxidation. The oxidised curdlans formed random coils in aqueous solution, and the chain became more flexible and expanded with increasing carboxylate contents from 2.07mmol/g to 4.87mmol/g. The high polyglucuronic acid derivative (Cur-24) showed the best antioxidant activity in TEAC and FRAP assays, thus it could be explored as novel potential antioxidants for dietary and therapeutic applications.


Subject(s)
Antioxidants/chemistry , Cyclic N-Oxides/chemistry , beta-Glucans/chemistry , Carbohydrate Conformation , Multigene Family , Oxidation-Reduction , Spectroscopy, Fourier Transform Infrared , X-Ray Diffraction
19.
Hepatogastroenterology ; 61(135): 1995-2000, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25713901

ABSTRACT

BACKGROUND/AIMS: Superior mesenteric artery (SMA) syndrome may occur in patients with constipation, whereas the association between these two distinct diseases has not been confirmed yet. We investigated the incidence, risk factors and treatment strategy associated with SMA syndrome in constipated patients. METHODOLOGY: We conducted a prospective nested case-control study from a 9-year hospitalization cohort (n=973). Cases were matched to controls 1:4 on factors of age and gender. Cases developed SMA syndrome in long term follow-up (n=26) and controls did not (n=104). Independent risk factors were identified by using univariate analysis and conditional logistic regression analysis. Enteral nutritional support was applied in all cases and its curative effect was evaluated by retrospective analysis. RESULTS: The incidence of SMA syndrome was 2.67%. The risk factors under scrutiny were body mass index (BMI)≤18 (odds ratio (OR) 2.89, 95% CI 1.14 to 9.31) and abnormal colon transit time (OR 3.57, 95% CI 1.36 to 9.35). Twenty-two patients recovered after treatment of nutritional support, and the success rate of conservative treatment was 84.6%. CONCLUSIONS: BMI≤18 and prolonged colon transit time both were risk factors associated with SMA syndrome in constipated patients. Enteral nutritional support should be adopted as the first-line treatment for this condition.


Subject(s)
Constipation/epidemiology , Superior Mesenteric Artery Syndrome/epidemiology , Adult , Body Mass Index , Case-Control Studies , Chi-Square Distribution , China/epidemiology , Colon/physiopathology , Constipation/diagnosis , Constipation/physiopathology , Enteral Nutrition , Female , Gastrointestinal Transit , Humans , Incidence , Logistic Models , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Prospective Studies , Risk Factors , Superior Mesenteric Artery Syndrome/diagnosis , Superior Mesenteric Artery Syndrome/physiopathology , Superior Mesenteric Artery Syndrome/therapy , Time Factors , Treatment Outcome
20.
Zhonghua Wai Ke Za Zhi ; 50(6): 509-13, 2012 Jun.
Article in Chinese | MEDLINE | ID: mdl-22943943

ABSTRACT

OBJECTIVE: To discuss a new surgical strategy: Jinling procedure (subtotal colectomy combined with modified Duhamel procedure), of which the indications, technical notes and outcomes were analyzed. METHODS: The 590 patients with refractory slow-transit constipation associated with outlet obstruction was strictly included between February 2000 and December 2011. The patients included 103 males and 487 females. Their age were 14-75 years (average 42 ± 13). The 412 patients received laparoscopic-assistant Jinling procedure, and 178 patients with open Jinling procedure. The pre- and post-operation data were collected. The follow up rate were 100%, 98.1%, 95.8% and 92.7% at 3, 6, 12 and 24 months. RESULTS: There was no surgery-related death. Mean hospital day was (12 ± 9) days. Most complications were managed conservatively without significant events. The common complications after surgery were adhesive intestinal obstruction (9.2%), anastomosis bleeding (8.1%) and anastomosis leakage (2.9%). The gastrointestinal quality of life index score was 72 ± 9 preoperatively and increased to 68 ± 11, 99 ± 6, 105 ± 9, 106 ± 9 at 3, 6, 12 and 24 month follow-up, respectively (t = 62.1, -25.1, -126.5, -143.2, P < 0.01). The Wexner constipation scale was 21.9 ± 4.5 preoperatively and decreased to 9.6 ± 2.4, 5.9 ± 2.1, 4.6 ± 1.9, 4.5 ± 1.8 at 3, 6, 12 and 24 month follow-up, respectively (t = 48.6, 61.8, 58.2, 45.9, P < 0.01). The satisfactory rate was 77.5%, 92.1%, 93.0% and 94.1% at 3, 6, 12, and 24 month follow-up. CONCLUSIONS: Jinling procedure provides a good surgical option for refractory slow-transit constipation associated with outlet obstruction.


Subject(s)
Constipation/surgery , Proctocolectomy, Restorative/methods , Adolescent , Adult , Aged , Female , Follow-Up Studies , Humans , Male , Middle Aged , Treatment Outcome , Young Adult
SELECTION OF CITATIONS
SEARCH DETAIL
...