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1.
J Hazard Mater ; 474: 134729, 2024 Aug 05.
Article in English | MEDLINE | ID: mdl-38805811

ABSTRACT

Climate change and human activities escalate the frequency and intensity of wildfires, threatening amphibian habitats and survival; yet, research on these impacts remains limited. Wildfire ash alters water quality, introduces contaminants, and may disrupt microbial communities, impacting gut and skin microbiota; however, the effects on gut and skin microbiota remain unclear. Rana dybowskii were exposed to five concentrations (0 g L-1, 1.25 g L-1, 2.5 g L-1, 5 g L-1, and 10 g L-1) of aqueous extracts of wildfire ashes (AEAs) for 30 days to assess AEAs' metal content, survival, and microbiota diversity via Illumina sequencing. Our results showed that the major elements in ash were Ca > K > Mg > Al > Fe > Na > Mn, while in AEA they were K > Ca > Na > Mg > As > Al > Cu. A significant decrease in amphibian survival rates with increased AEA concentration was shown. The beta diversity analysis revealed distinct shifts in microbiota composition. Notably, bacterial genera associated with potential health risks showed increased abundance in skin microbiota, emphasising the potential for ash exposure to affect amphibian health. Functional prediction analyses revealed significant shifts in metabolic pathways related to health and disease, indicating that wildfire ash exposure may influence amphibian health through changes in microbial functions. This study highlights the urgent need for strategies to mitigate wildfire ash impacts on amphibians, as it significantly alters microbiota and affects their survival and health.


Subject(s)
Gastrointestinal Microbiome , Ranidae , Skin , Wildfires , Animals , Skin/drug effects , Skin/microbiology , Gastrointestinal Microbiome/drug effects , Ranidae/microbiology , Microbiota/drug effects , Bacteria/genetics , Bacteria/classification , Bacteria/drug effects , Bacteria/metabolism , Metals/toxicity
2.
Sci Total Environ ; 926: 171651, 2024 May 20.
Article in English | MEDLINE | ID: mdl-38490417

ABSTRACT

Rice straw is burned as a result of agricultural practices and technical limitations, generating significant volumes of ash that might have environmental and ecological consequences; however, the effects on organisms have not been researched. Amphibians depend on their gut and skin microbiomes. Ash exposure may cause inflammation and changes in microbial diversity and function in frogs' skin and gut microbiota due to its chemical composition and physical presence, but the implications remain unclear. Rana dybowskii were exposed to five aqueous extracts of ashes (AEA) concentrations for 30 days to study survival, metal concentrations, and microbial diversity, analyzing the microbiota of the cutaneous and gut microbiota using Illumina sequencing. Dominant elements in ash: K > Ca > Mg > Na > Al > Fe. In AEA, K > Na > Ca > Mg > As > Cu. Increased AEA concentrations significantly reduced frog survival. Skin microbiota alpha diversity varied significantly among all treatment groups, but not gut microbiota. Skin microbiota differed significantly across treatments via Bray-Curtis and weighted UniFrac; gut microbiota was only affected by Bray-Curtis. Skin microbiota varied significantly with AEA levels in Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes, while the gut microbiota's dominant phyla, Firmicutes, Bacteroidetes, and Proteobacteria, remained consistent across all groups. Lastly, the functional prediction showed that the skin microbiota had big differences in how it worked and looked, which were linked to different health and environmental adaptation pathways. The gut microbiota, on the other hand, had smaller differences. In conclusion, AEA exposure affects R. dybowskii survival and skin microbiota diversity, indicating potential health and ecological impacts, with less effect on gut microbiota.


Subject(s)
Gastrointestinal Microbiome , Microbiota , Oryza , Animals , Anura , Bacteria
3.
Scand J Gastroenterol ; 59(5): 570-576, 2024 May.
Article in English | MEDLINE | ID: mdl-38252748

ABSTRACT

Objective: The purpose of this study was to explore the clinical benefits of establishing an enteral nutrition (EN) pathway via percutaneous transhepatic cholangiography drainage (PTCD) catheterization in patients with late-stage malignant obstructive jaundice (MOJ).Methods: We selected 30 patients diagnosed as having late-stage MOJ with malnutrition. A dual-lumen biliary-enteral nutrition tube was placed via PTCD along with a biliary stent implantation. Postoperative EN was provided, and we observed the time taken for tube placement, its success rate, complications, and therapeutic efficacy.Results: Tube placement was successful in all 30 patients with an average procedural time of 5.7 ± 1.4 min with no tube placement complications. Compared to preoperative measures, there was a significant improvement in postoperative jaundice reduction and nutritional indicators one month after the procedure (p < 0.05). Post-placement complications included tube perileakage in 5 cases, entero-biliary reflux in 4 cases, tube blockage in 6 cases, tube displacement in 4 cases, accidental tube removal in 3 cases, and tube replacement due to degradation in 8 cases, with tube retention time ranging from 42 to 314 days, averaging 124.7 ± 37.5 days. All patients achieved the parameters for effective home-based enteral nutrition with a noticeable improvement in their quality of life.Conclusion: In this study, we found that the technique of establishing an EN pathway via PTCD catheterization was minimally invasive, safe, and effective; the tube was easy to maintain; and patient compliance was high. It is, thus, suitable for long-term tube retention in patients with late-stage MOJ.


Subject(s)
Cholangiography , Drainage , Enteral Nutrition , Jaundice, Obstructive , Humans , Jaundice, Obstructive/etiology , Jaundice, Obstructive/therapy , Jaundice, Obstructive/surgery , Male , Female , Drainage/methods , Enteral Nutrition/methods , Middle Aged , Aged , Cholangiography/methods , Stents , Treatment Outcome , Catheterization/methods , Postoperative Complications/etiology , Malnutrition/etiology , Malnutrition/therapy , Aged, 80 and over
4.
Acta Pharmacol Sin ; 44(5): 999-1013, 2023 May.
Article in English | MEDLINE | ID: mdl-36347996

ABSTRACT

Non-healing diabetic wounds (DW) are a serious clinical problem that remained poorly understood. We recently found that topical application of growth differentiation factor 11 (GDF11) accelerated skin wound healing in both Type 1 DM (T1DM) and genetically engineered Type 2 diabetic db/db (T2DM) mice. In the present study, we elucidated the cellular and molecular mechanisms underlying the action of GDF11 on healing of small skin wound. Single round-shape full-thickness wound of 5-mm diameter with muscle and bone exposed was made on mouse dorsum using a sterile punch biopsy 7 days following the onset of DM. Recombinant human GDF11 (rGDF11, 50 ng/mL, 10 µL) was topically applied onto the wound area twice a day until epidermal closure (maximum 14 days). Digital images of wound were obtained once a day from D0 to D14 post-wounding. We showed that topical application of GDF11 accelerated the healing of full-thickness skin wounds in both type 1 and type 2 diabetic mice, even after GDF8 (a muscle growth factor) had been silenced. At the cellular level, GDF11 significantly facilitated neovascularization to enhance regeneration of skin tissues by stimulating mobilization, migration and homing of endothelial progenitor cells (EPCs) to the wounded area. At the molecular level, GDF11 greatly increased HIF-1ɑ expression to enhance the activities of VEGF and SDF-1ɑ, thereby neovascularization. We found that endogenous GDF11 level was robustly decreased in skin tissue of diabetic wounds. The specific antibody against GDF11 or silence of GDF11 by siRNA in healthy mice mimicked the non-healing property of diabetic wound. Thus, we demonstrate that GDF11 promotes diabetic wound healing via stimulating endothelial progenitor cells mobilization and neovascularization mediated by HIF-1ɑ-VEGF/SDF-1ɑ pathway. Our results support the potential of GDF11 as a therapeutic agent for non-healing DW.


Subject(s)
Diabetes Mellitus, Experimental , Endothelial Progenitor Cells , Growth Differentiation Factors , Wound Healing , Animals , Humans , Mice , Bone Morphogenetic Proteins/metabolism , Chemokine CXCL12/drug effects , Chemokine CXCL12/metabolism , Diabetes Mellitus, Experimental/complications , Diabetes Mellitus, Experimental/drug therapy , Diabetes Mellitus, Experimental/metabolism , Diabetes Mellitus, Type 2/drug therapy , Diabetes Mellitus, Type 2/metabolism , Endothelial Progenitor Cells/metabolism , Endothelial Progenitor Cells/pathology , Growth Differentiation Factors/therapeutic use , Growth Differentiation Factors/metabolism , Neovascularization, Physiologic , Vascular Endothelial Growth Factor A/drug effects , Vascular Endothelial Growth Factor A/metabolism , Wound Healing/drug effects , Recombinant Proteins/metabolism , Recombinant Proteins/therapeutic use , Hypoxia-Inducible Factor 1, alpha Subunit/drug effects , Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
5.
J Nat Prod ; 85(8): 2110-2115, 2022 08 26.
Article in English | MEDLINE | ID: mdl-35969376

ABSTRACT

The structural revision of four Stemona alkaloids from Stemona tuberosa is reported. The misassignment of the tuberostemonine O structure (1) was recognized when a new alkaloid, tuberostemonine P, was isolated and unambiguously assigned structure 1 in this work. Reinvestigation of the spectroscopic data and NMR calculations led to the revised structure 1a for tuberostemonine O. The structural misassignment of dehydrocroomine A as 2 was corrected by reinterpreting the X-ray crystal structure, which was consistent with 2a. The structural reassignments of dehydrocroomine B (3 to 3a) and dehydrocroomine (4 to 4a) were confirmed by X-ray crystallography and NMR calculations, respectively.


Subject(s)
Alkaloids , Stemonaceae , Alkaloids/chemistry , Molecular Structure , Stemonaceae/chemistry
6.
Org Lett ; 24(25): 4684-4688, 2022 07 01.
Article in English | MEDLINE | ID: mdl-35724994

ABSTRACT

Five Lycopodium alkaloids featuring novel C17N2 (1 and 2), C29N3 (3 and 4), and C15N2 (5) skeletons were isolated from Lycopodium japonicum. Compound 1 is the first natural product containing a 3-aza[3.3.3]propellane motif. The structures of these compounds were elucidated by spectroscopic analysis, X-ray crystallography, and computational methods. Compounds 1 and 3-5 significantly inhibited TGF-ß1-induced fibronectin deposition in HK-2 cells at a nontoxic concentration of 20 µM.


Subject(s)
Alkaloids , Lycopodium , Alkaloids/chemistry , Alkaloids/pharmacology , Crystallography, X-Ray , Fibrosis , Lycopodium/chemistry , Molecular Structure
7.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 29(2): 422-427, 2021 Apr.
Article in Chinese | MEDLINE | ID: mdl-33812409

ABSTRACT

OBJECTIVE: To investigate the effect of tumor necrosis factor death receptor (DR) 4 demethylation to the proliferation and apoptosis of myeloid leukemia K562 cells. METHODS: The logarithmic phase of K562 cells were treated by desitabine (DCA) at 0, 0.8, 1.6 and 3.2 µmol/L, and the cells were divided into control group, DCA low dose group, DCA medium dose group and DCA high dose group respectively. The cells in control group were treated by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) 0.5 µg/ml for 24 h, and the cells were divided into TRAIL group. The cells in DCA high dose group were treated by TRAIL 0.5 µg/ml for 24 h, and were divided into DCA high dose + TRAIL group. Methylation-specific polymerase chain reaction (MS-PCR) was used to measure the methylation status of the DR4 gene promoter in the control group and DCA low, medium and high dose groups. Real-time fluorescent quantitative polymerase chain reaction (qRT-PCR) and Western blot were used to determine the relative expression of DR4 mRNA and protein in the control group and DCA low, medium and high dose groups. Dime- thylthiazole (MTT) method was used to determine the inhibition rate of cell proliferation of the cells in control group, DCA high dose group, TRAIL group, DCA high dose + TRAIL group. Flow cytometry was used to determine the apoptotic rate of the cells in control group, DCA high dose group, TRAIL group, DCA high dose + TRAIL group. RESULTS: The cells in the control group were methylation-positive, the brightness of the methylation bands of the cells in the DCA low, medium, and high dose groups was gradually decreased to disappear, and the DCA high dose group showed negative for methylation. The relative expression of DR4 mRNA and protein in the control group, DCA low, medium and high dose groups was increased sequentially (r=0.624, 0.704). The inhibition rate of cell proliferation of the cells in the control group, DCA high dose group, TRAIL group, DCA high dose + TRAIL group was increased sequentially (r=0.653, 0.754, 0.709, 0.725) at 24, 48 and 72 h. CONCLUSION: DCA can reverse the methylation level of DR4 gene promoter in ML K562 cells and up-regulate the expression of DR4, which may enhance the proliferation inhibition and apoptosis promotion effects of TRAIL on K562 cells.


Subject(s)
Leukemia, Myeloid , Receptors, TNF-Related Apoptosis-Inducing Ligand , Apoptosis , Cell Line, Tumor , Cell Proliferation , Demethylation , Humans , K562 Cells , Receptors, TNF-Related Apoptosis-Inducing Ligand/metabolism , TNF-Related Apoptosis-Inducing Ligand/metabolism
8.
Cancer Manag Res ; 13: 595-604, 2021.
Article in English | MEDLINE | ID: mdl-33519239

ABSTRACT

BACKGROUND: Totally laparoscopic total gastrectomy (TLTG) using the overlap reconstruction method is associated with fewer postoperative complications and fast recovery than laparoscopic-assisted radical total gastrectomy (LATG). However, evidence on the safety and feasibility of TLTG (overlap reconstruction) in patients with advanced Siewert III esophagogastric junction cancer and gastric cancer of the upper and middle third of the stomach is scarce. METHODS: This study is a prospective, single-center, single-blind, two-arm randomized controlled trial designed to include 292 patients with advanced Siewert III esophagogastric junction cancer and gastric cancer of the upper and middle third of the stomach who will be randomly assigned to two groups: a TLTG overlap group (n=146) and an LATG group (n=146). The patients' demographics, pathological characteristics, intraoperative variables, postoperative complications, postoperative recovery variables, 3-year disease-free survival and 3-year overall survival will be collected and analyzed. The primary outcome is the postoperative complications within 30 days after surgery including intra-abdominal hemorrhage, anastomotic leakage, duodenal stump fistula, pancreatic fistula, chyle leakage, abdominal infection, intestinal obstruction, wound complications, pulmonary infection, pleural effusion, pulmonary embolism, cardiovascular and cerebrovascular complications, and deep vein thrombosis. The secondary outcomes are the 3-year disease-free survival and 3-year overall survival. DISCUSSION: This trial will provide high-level evidence for the safety and feasibility of TLTG (overlap reconstruction) compared with LATG in advanced Siewert III esophagogastric junction cancer and the upper and middle third of gastric cancer. TRIAL REGISTRATION: This trial has been registered at the Chinese Clinical Trial Registry: ChiCTR1900025667 (registration date: September 4, 2019).

9.
Medicine (Baltimore) ; 98(30): e16598, 2019 Jul.
Article in English | MEDLINE | ID: mdl-31348304

ABSTRACT

To evaluate the value of intraperitoneal hyperthermic perfusion (IPHP) in the treatment of gastric cancer.Gastric cancer (GC) is a malignancy with poor prognosis, recent years have demonstrated advances in the use of IPHP for the treatment of advanced gastric cancer (AGC), but the outcome is controversial.Between January 2015 and January 2017, 134 patients with GC were treated with IPHP in our surgery department, 130 of them were advanced GC patients, and other 1439 cases were treated without IPHP for comparison. In this retrospective cohort study, demographic, perioperative data, and follow-up data were analyzed by univariant analysis, Kaplan-Meier and Cox regression survival analysis.We found the 1-year survival in IPHP group was significantly longer than it in non-IPHP group (85.5% vs 73.8%, P = .027). and IPHP decreased mortality 1.8 times in 2-year course (OR = 0.556, P = .004). The incidence rate of total complications in IPHP group was similar to that in the Non-IPHP group (6.67% vs 7.46%, respectively; P = .718). We classified all patients into four groups, operation alone, operation + chemotherapy, operation + IPHP, and operation + IPHP + chemotherapy. The 1-year survival in the groups was 70.2%, 77.5%, 83.1%, and 93.5%, respectively (P = .001), compared with the group of operation alone, the 2-year mortality risk was decreased 1.76 times (OR = 0.569, P = .030) and 2.59 times (OR = 0.385, P = .022) in operation + IPHP group and operation + IPHP + chemotherapy group.Our results suggest that IPHP could contribute to improve survival of patients with gastric cancer. And the modality of operation + IPHP + chemotherapy is the optimal treatment modality for gastric cancer.


Subject(s)
Antineoplastic Agents/therapeutic use , Hyperthermia, Induced/methods , Stomach Neoplasms/therapy , Adult , Aged , Antineoplastic Agents/administration & dosage , Antineoplastic Agents/adverse effects , Combined Modality Therapy , Female , Humans , Hyperthermia, Induced/adverse effects , Kaplan-Meier Estimate , Male , Middle Aged , Neoplasm Staging , Retrospective Studies , Socioeconomic Factors , Stomach Neoplasms/pathology , Stomach Neoplasms/surgery , Survival Analysis
10.
Int J Pediatr Otorhinolaryngol ; 123: 168-174, 2019 Aug.
Article in English | MEDLINE | ID: mdl-31112840

ABSTRACT

OBJECTIVE: This study aimed to explore and make an understanding of absorption existed in children with intracapsular fractures. METHODS: The sample was composed of all children (less than 12 years) who presented with intracapsular fractures within a 5-year period (January 2011 to April 2016). Data about age, gender, date of injury, dates of admission and discharge, transfer and/or referral by other clinics or local facilities, mechanism of trauma, location and pattern of fracture, associated injuries, centimeter of mouth opening, treatment methods, image date of pre- and post-treatment (including time of review), position of condylar head in pre-treatment or post-treatment, and absorption of condylar head in pre-treatment or post-treatment were recorded and analyzed. Data analysis included the Chi-Square test, the Fisher exact test, and the t-test. Logistic regression analysis was utilized to control the confounding variables. Probabilities of p less than 0.05 were considered statistically significantly different. RESULTS: In the 5 years records retrieved during this study, 93 children patients sustained a total of 140 condylar head fractures. Statistical analysis revealed that abduction of condylar process in post-treatment was highly related to the condylar absorption. Patients associated with other mandibular fractures were highly related to abduction of condylar process. Patients with condylar head fractures, the closer to the medial of the condylar process, the higher the risk of abduction of the condyle. No matter what kind of treatment method is used, it is very difficult to reverse the abduction of condylar process in children patients with intracapsular fractures efficaciously. CONCLUSION: Abduction of condylar process in post-treatment was highly related to the condylar absorption. Patients associated with other mandibular fractures were highly related to abduction of condylar process. Children patients who presented with condylar head fractures, the closer to the medial of the condylar process the higher the risk of abduction of the condyle. Neither surgery nor conservative treatment can recover the abduction of condylar process efficaciously.


Subject(s)
Bone Resorption/diagnostic imaging , Mandibular Condyle/injuries , Mandibular Fractures/diagnostic imaging , Mandibular Fractures/therapy , Bone Resorption/epidemiology , Child , Child, Preschool , Cohort Studies , Conservative Treatment , Female , Humans , Male , Mandibular Fractures/complications , Tomography, X-Ray Computed
11.
Int J Pediatr Otorhinolaryngol ; 119: 113-117, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30690307

ABSTRACT

OBJECTIVE: This study aimed to evaluate and compare the demographic characteristics of mandibular condylar fractures between children and adolescents. METHODS: The sample was composed of all children (less than 12 years) and adolescents (between 13 and 18 years old) who presented with mandibular condylar fractures within a 5-year period (January 2011 to April 2016). The age, gender, time of injury, mechanism of trauma, location and pattern of fracture, associated injuries and treatment methods were recorded and analysed. Data analysis included chi-square test and Fisher exact test. Differences at p less than 0.05 were considered significant. RESULTS: A total of 111 children and 39 adolescent patients with condylar fractures were registered and compared. More children than adolescents were involved in falls from a height (p = 0.007), but nearly no relationship was observed between the trauma aetiology and type of condylar fracture in the two patient groups. Condylar head fractures occurred most frequently in the children and adolescents, especially in the children (p < 0.05). Condylar neck fractures were more frequently observed in the adolescent patients (p < 0.001) than in the children. Green-stick fractures occurred only in the child patients (p = 0.005). The patients who fractured other sites of the mandible tended to show a decreased frequency of dislocation (condylar head was out of the glenoid fossa) (p = 0.024). Symphysis/para-symphysis fractures were highly common in the children who sustained unilateral condylar fractures, compared to adolescents (p < 0.05). The patients with bilateral condylar fractures were more frequently associated with other mandibular fractures (children, p = 0.001; adolescents, p = 0.011), especially the fracture of the mandibular body or symphysis. The children who sustained extracapsular fractures were more prone to fractures of other mandibular sites (p = 0.009), especially fracture of the symphysis/para-symphysis (p = 0.014). Intracapsular fractures in children were treated non-surgically more frequently than surgically (p < 0.001). The extracapsular fractures (mild and serious fractures) in children were also treated non-surgically more frequently (p < 0.05). CONCLUSIONS: The trauma mechanisms, incidence, pattern and treatment of condylar fractures in children substantially differ from those in adolescents. This study was conducted to enable the understanding of the differences in condylar fractures between children and adolescents. Accordingly, preventive measures and treatment plans in children or adolescents should be applied differently.


Subject(s)
Mandibular Condyle/injuries , Mandibular Fractures/epidemiology , Mandibular Fractures/therapy , Adolescent , Child , Child, Preschool , Female , Fracture Dislocation/epidemiology , Fracture Dislocation/etiology , Fracture Dislocation/therapy , Fractures, Multiple , Humans , Incidence , Infant , Infant, Newborn , Male , Mandibular Fractures/etiology , Retrospective Studies , Temporomandibular Joint/injuries
12.
Biosci Rep ; 39(1)2019 01 31.
Article in English | MEDLINE | ID: mdl-30559146

ABSTRACT

Plenty of studies have investigated the effect of methionine synthase (MTR) A2756G polymorphism on risk of developing pediatric acute lymphoblastic leukemia (ALL), but the available results were inconsistent. Therefore, a meta-analysis was conducted to derive a more precise estimation of the association between MTR A2756G polymorphism and genetic susceptibility to pediatric ALL. The PubMed, Embase, Google Scholar, Web of Science, ScienceDirect, Wanfang Databases and China National Knowledge Infrastructure were systematically searched to identify all the previous published studies exploring the relationship between MTR A2756G polymorphism and pediatric ALL risk. Odds ratios (ORs) and 95% confidence intervals (CIs) were applied to evaluate the strength of association. Sensitivity analysis and publication bias were also systematically assessed. This meta-analysis finally included ten available studies with 3224 ALL cases and 4077 matched controls. The results showed that there was significant association between MTR A2756G polymorphism and risk of pediatric ALL in overall population (AG vs. AA: OR = 1.13, 95%CI = 1.02-1.26, P = 0.02; AG+GG vs. AA: OR = 1.13, 95%CI = 1.02-1.25, P = 0.01; G allele vs. A allele: OR = 1.10, 95%CI = 1.01-1.20, P = 0.03). In the stratification analyses by ethnicity, quality score and control source, significant association was found in Caucasians, population-based designed studies and studies assigned as high quality. In conclusion, this meta-analysis suggests that MTR A2756G polymorphism may influence the development risk of pediatric ALL in Caucasians. Future large scale and well-designed studies are required to validate our findings.


Subject(s)
5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase/genetics , Genetic Predisposition to Disease , Polymorphism, Single Nucleotide , Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics , Asian People , Case-Control Studies , Child , Female , Gene Expression , Genetic Association Studies , Humans , Male , Odds Ratio , Precursor Cell Lymphoblastic Leukemia-Lymphoma/diagnosis , Precursor Cell Lymphoblastic Leukemia-Lymphoma/ethnology , Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology , Risk , White People
13.
Biomed Res Int ; 2018: 6947612, 2018.
Article in English | MEDLINE | ID: mdl-29992158

ABSTRACT

OBJECTIVE: The masticatory muscles are the most important contributor to bite force, and the temporomandibular joint (TMJ) receives direct occlusal loading. The present study aimed to investigate condylar remodeling after masseter muscle atrophy in rats. METHODS: Sixty 5-week-old female Sprague-Dawley rats were divided into the following 3 groups: the control group, soft diet (SD) group, and botulinum toxin (BTX) group. The cross-sectional area (CSA) of the masseter muscles was investigated as well as atrogin-1/MuRF-1 expression. Changes in the condylar head were evaluated by H-E, toluidine blue staining, and contour measurements. The biomechanical sensitive factors PTHrP Ihh, Col2a1, and ColX of condylar cartilage were detected by immunohistochemical staining and western blotting. Furthermore, micro-CT and tartrate-resistant acid phosphatase (TRAP) staining were performed to determine the osteopenia in subchondral bone. RESULTS: The histological and protein analysis demonstrated muscle hypofunction in the SD and BTX groups. Condylar cartilage contour was diminished due to different treatments; the immunohistochemistry and protein examination showed that the expressions of PTHrP, Ihh, Col2a1, and ColX were suppressed in condylar cartilage. A steady osteoporosis in subchondral bone was found only in the BTX group. CONCLUSION: The current results suggested that a steady relationship between muscular dysfunction and condylar remodeling exists.


Subject(s)
Mandibular Condyle/pathology , Masticatory Muscles/pathology , Animals , Atrophy , Bite Force , Female , Rats , Rats, Sprague-Dawley
14.
Sci Rep ; 8(1): 7724, 2018 05 16.
Article in English | MEDLINE | ID: mdl-29769591

ABSTRACT

This study aims to identify and distinguish various factors that may influence the clinical symptoms (limited mouth opening and malocclusion) in patients with maxillofacial fractures. From January 2000 to December 2009, 963 patients with maxillofacial fractures were enrolled in this statistical study to aid in evaluating the association between various risk factors and clinical symptoms. Patients with fractured posterior mandibles tended to experience serious limitation in mouth opening. Patients who sustained coronoid fractures have the highest risk of serious limitation in mouth opening (OR = 9.849), followed by arch fractures, maxilla fractures, condylar fractures, zygomatic complex fractures and symphysis fractures. Meanwhile, the combined fracture of zygomatic arch and condylar process results in normal or mild mouth opening. High risks of sustaining malocclusion are preceded by the fracture of nasal bone (OR = 3.067), mandible, condylar neck/base, combined fracture of zygomatic arch and condylar process, mandibular body, bilateral condylar, dental trauma, mandibular ramus, symphysis, mandibular angle and mid-facial. Patients who experienced serious limitation in mouth opening are treated with surgery more frequently (OR = 2.118). No relationship exists between the treatment options and the patients with malocclusion.


Subject(s)
Malocclusion/pathology , Mandibular Fractures/complications , Mouth/pathology , Range of Motion, Articular , Adult , Biomechanical Phenomena , Case-Control Studies , Female , Humans , Male , Malocclusion/etiology , Retrospective Studies
15.
J Thorac Dis ; 10(3): 1548-1553, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29707305

ABSTRACT

BACKGROUND: Closed thoracic drainage tube (CTDT) is a conventional treatment after esophagectomy, even after minimally invasive esophagectomy. Here, we report a single-center, retrospective study to explore the safety and necessity of CTDT after thoracoscopic-esophagectomy. METHODS: From October 2015 and August 2016, 50 patients were enrolled and underwent thoracoscopic-esophagectomy in semi-prone position by same surgical team. Perioperative demographic and surgical parameters, and patients' satisfaction with or without CTDT after thoracoscopic-esophagectomy were collected and analyzed. RESULTS: All eligible patients (18 patients without CTDT and 32 patients with CTDT) were successfully underwent thoracoscopic procedures without conversion to open approach or major intraoperative complications and perioperative death. The two groups, with similar demographic parameters, had no statistically difference in thoracic operation time, blood loss, ICU stay, postoperative mobilization and oral feeding, and hospital stay. Also, the incidence of postoperative complications was similar with or without CTDT after esophagectomy. But, no-CTDT group had better post-operative satisfaction, including less pain scale scoring and better Norton scoring. CONCLUSIONS: This study demonstrated that the treatment of no-CTDT after the minimally invasive thoracoscopic-esophagectomy is safe and feasible, might reduce the work intensity of medical stuff and lead to a better patients' experience.

16.
Onco Targets Ther ; 11: 967-973, 2018.
Article in English | MEDLINE | ID: mdl-29503571

ABSTRACT

BACKGROUND: The mucinous component is a special histologic factor in gastric adenocarcinoma. The aim of this study was to assess the prognostic significance of mucinous component in gastric adenocarcinoma according to proportion. PATIENTS AND METHODS: Candidate patients with gastric adenocarcinoma were given radical D2 gastrectomies from September 2008 to May 2015 in our division. Clinicopathologic data and prognosis were monitored and analyzed among gastric adenocarcinoma patients with various proportions of mucinous component. RESULTS: A total of 690 gastric adenocarcinomas with various proportions of mucinous component from 6,025 gastric adenocarcinoma patients were included. Higher numbers of patients with mucinous component came from: young patients, females, those with drinking history, at lower locations, Borrmann type III and IV, T4 stage, and positive for dissected lymph nodes. Tumors and pathological molecular markers showed more positivity in CEA, CA19-9, S100, and CD34. As the various proportions increased, more mucinous component seemed to be accompanied by more Borrmann type III and IV, T4 stage, and more positive expression of CEA and CA19-9. However, no significant difference in 5-year overall survival rate was observed among various proportions or existence of mucinous component. Also, proportion or existence of mucinous component was not an independent prognostic factor in multivariate analysis. CONCLUSION: Mucinous component was not a prognostic factor for gastric adenocarcinoma after radical D2 gastrectomy, no matter what proportion the component comprised. However, gastric adenocarcinoma with mucinous component showed specific clinicopathological characteristics, such as more advanced tumor stage, different age and sex, and more positive rate of molecular markers, which might provide a new strategy for optimal individual diagnosis and therapies.

17.
Mol Clin Oncol ; 7(3): 421-426, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28894580

ABSTRACT

The aim of the present study was to evaluate the safety of gastrectomy without nasogastric and nutritional intubations. Between January 2010 and August 2015, 74 patients with gastric cancer received total gastric resection and esophagogastric anastomosis without nasogastric and nutritional intubations at the First Department of Digestive Surgery of the XiJing Hospital of Digestive Diseases (Xi'an, China), of whom 42 were also received earlier oral feeding within 48 h. The data were retrospectively analyzed. An additional 301 cases who underwent traditional postoperative intubation were used for comparison. In patients without intubation compared with those managed traditionally with intubation, the mean operative time was decreased (190.97±38.18 vs. 216.12±59.52 min, respectively; P=0.026). In addition, the postoperative activity was resumed earlier (1.16±0.47 vs. 1.36±0.84 days, respectively; P=0.009), oral food intake was started earlier (4.28±1.79 vs. 5.71±2.66 days, respectively; P=0.009), the incidence of fever was lower (12.16 vs. 29.23%, respectively; P=0.003), and the incidence of total complications was not statistically significantly different between the two groups (9.41 vs. 6.31%, respectively; P=0.317). There were no significant differences regarding complications of the anastomotic port (1.37 vs. 1.69%, respectively; P=0.849). Compared with traditional postoperative management, earlier oral feeding did not increase the incidence of complications (7.21 vs. 4.76%, respectively; P=0.557). Our results suggest that total gastric resection without nasogastric and nutritional intubation is a safe and feasible option for patients undergoing total gastrectomy.

19.
Zool Res ; 38(2): 55-80, 2017 03 18.
Article in English | MEDLINE | ID: mdl-28409502

ABSTRACT

Antimicrobial resistance is an urgent global health challenge in human and veterinary medicine. Wild animals are not directly exposed to clinically relevant antibiotics; however, antibacterial resistance in wild animals has been increasingly reported worldwide in parallel to the situation in human and veterinary medicine. This underlies the complexity of bacterial resistance in wild animals and the possible interspecies transmission between humans, domestic animals, the environment, and wildlife. This review summarizes the current data on expanded-spectrum ß-lactamase (ESBL), AmpC ß-lactamase, carbapenemase, and colistin resistance genes in Enterobacteriaceae isolates of wildlife origin. The aim of this review is to better understand the important role of wild animals as reservoirs and vectors in the global dissemination of crucial clinical antibacterial resistance. In this regard, continued surveillance is urgently needed worldwide.


Subject(s)
Anti-Bacterial Agents/pharmacology , Bacterial Proteins/genetics , Birds , Drug Resistance, Bacterial/genetics , Enterobacteriaceae/physiology , Animals , Animals, Wild , Colistin/pharmacology , Enterobacteriaceae/drug effects , Enterobacteriaceae/genetics , beta-Lactamases/genetics , beta-Lactams/pharmacology
20.
J Thorac Dis ; 9(1): 117-122, 2017 Jan.
Article in English | MEDLINE | ID: mdl-28203413

ABSTRACT

BACKGROUND: One-lung ventilation (OLV) anesthesia intubation route is often used in patients undergoing thoracoscopic-esophagectomy in semi-prone position. Recently, the two-lung ventilation (TLV) approach becomes popular. However, limited studies have compared the two ventilation approaches in parallel. Here, we report a single-center, retrospective study of comparing TLV and OLV approach in patients undergoing thoracoscopic-esophagectomy in semi-prone position. METHODS: From January 2013 to November 2014, 147 patients were enrolled into the current study and were given thoracoscopic-esophagectomy in semi-prone position either by OLV or TLV. Intraoperative respiratory functional data and perioperative surgical parameters of the two approaches were collected and analyzed. RESULTS: Of the 147 patients, 64 patients received OLV and 83 patients received TLV, and all of them were successfully under gone thoracoscopic procedures without conversion to open thoracotomy. There was no incidence of major intraoperative complications or perioperative death. There were no statistically different in postoperative respiratory complications, either. However, TLV approach resulted in better intraoperative respiratory function (PaCO2, PaO2, SaO2), shorter preparation time for anesthesia induction, less blood loss, shorter thoracoscopic operating time and less postoperative hospital stay (P<0.05). The incidence of postoperative respiratory complications and quantity of the resected thoracic lymph node showed no difference between the two ventilation approach (P>0.05). CONCLUSION: This study demonstrated that TLV intubation approach is superior to OLV approach during the thoracoscopic-esophagectomy in semi-prone position. According to this, TLV approach is a technically feasible, convenient and safe anesthesia induction approach for esophageal cancer surgery.

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