ABSTRACT
The accurate assessment of wound healing post-caesarean section, especially in twin pregnancies, remains a pivotal concern in obstetrics, given its implications for maternal health and recovery. Traditional methods, including conventional abdominal ultrasonography (CU), have been challenged by the advent of transvaginal ultrasonography (TU), offering potentially enhanced sensitivity and specificity. This meta-analysis directly compares the efficacy of TU and CU in evaluating wound healing and scar formation, crucial for optimizing postoperative care. Results indicate that TU is associated with significantly better outcomes in wound healing, demonstrated by lower REEDA scores (SMD = -20.56, 95% CI: [-27.34.20, -13.77], p < 0.01), and in scar formation reduction, evidenced by lower Manchester Scar Scale scores (SMD = -25.18, 95% CI: [-29.98, -20.39], p < 0.01). These findings underscore the potential of integrating TU into routine post-caesarean evaluation protocols to enhance care quality and patient recovery.
Subject(s)
Cesarean Section , Cicatrix , Pregnancy , Humans , Female , Cicatrix/diagnostic imaging , Cicatrix/etiology , Cicatrix/surgery , Cesarean Section/adverse effects , Wound Healing , Ultrasonography , Sensitivity and SpecificityABSTRACT
As one of the factors of male infertility, high temperature induces apoptosis of differentiated spermatogenic cells, sperm DNA oxidative damage, and changes in morphology and function of Sertoli cells. Spermatogonial stem cells (SSCs) are a type of germline stem cells that maintain spermatogenesis through self-renewal and differentiation. At present, however, the effect of high temperature on SSC differentiation remains unknown. In this study, an in vitro SSC differentiation model was used to investigate the effect of heat stress treatment on SSC differentiation, and RNA sequencing (RNA-seq) was used to enrich the key genes and pathways in high temperature inhibiting SSC differentiation. Results show that 2 days of 37 °C or 43 °C (30 min per day) heat stress treatment significantly inhibited SSC differentiation. The differentiation-related genes c-kit, stra8, Rec8, Sycp3, and Ovol1 were down-regulated after 2 and 4 days of heat stress at 37 °C. The transcriptome of SSCs was significantly differentially expressed on days 2 and 4 after heat stress treatment at 37 °C. In total, 1660 and 7252 differentially expressed genes (DEGs) were identified by RNA-seq in SSCs treated with heat stress at 37 °C for 2 and 4 days, respectively. KEGG pathway analysis showed that p53, ribosome, and carbon metabolism signaling pathways promoting stem cell differentiation were significantly enriched after heat stress treatment at 37 °C. In conclusion, 37 °C significantly inhibited SSC differentiation, and p53, ribosome, and carbon metabolism signaling pathways were involved in this differentiation inhibition process. The results of this study provide a reference for further investigation into the mechanism by which high temperature inhibits SSC differentiation.
Subject(s)
Spermatogonia , Tumor Suppressor Protein p53 , Male , Humans , Spermatogonia/metabolism , Temperature , Tumor Suppressor Protein p53/metabolism , Semen , Cell Differentiation , Spermatogenesis/physiology , Gene Expression ProfilingABSTRACT
BACKGROUND: Kodamaea ohmeri is a rare pathogen with high mortality and is found among blood samples in a considerable proportion; however, gastrointestinal infection of K. ohmeri is extremely rare. Invasive pulmonary aspergillosis is also an uncommon fungal; these two fungal infections reported concomitantly are unprecedented. CASE PRESENTATION: We described a case of a 37-year-old male who got infected with K. ohmeri and invasive pulmonary aspergillosis. We used the mass spectrometry and histopathology to identify these two fungal infections separately. For the treatment of K. ohmeri, we chose caspofungin. As for invasive pulmonary aspergillosis, we used voriconazole, amphotericin B, and then surgery. The patient was treated successfully through the collaboration of multiple disciplines. CONCLUSIONS: We speculate that the destruction of the intestinal mucosa barrier can make the intestine one of the ways for certain fungi to infect the human body.
Subject(s)
Fungemia , Invasive Pulmonary Aspergillosis , Saccharomycetales , Adult , Humans , Male , Caspofungin/therapeutic use , Fungemia/microbiology , Invasive Pulmonary Aspergillosis/diagnosis , Invasive Pulmonary Aspergillosis/drug therapyABSTRACT
Cultured meat is an emerging technology that is friendly for the environment and animal welfare. As a novel food ingredient, cultured fat is essential for the flavor and nutrition of cultured meat. In this study, we purified adipose progenitor cell (APC) from freshly isolated porcine stromal vessel fraction (SVF) by fluorescence-activated cell sorting (FACS) and identified the transcriptome characteristics of APC by RNA sequencing (RNA-seq). The results showed that APC had characteristics of high-efficiency proliferation and adipogenic differentiation and was distinct from SVF cell in transcriptome profiles. Subsequently, APC was used to prepare cultured fat by 3D bioprinting and to evaluate the differences in fatty acid composition between cultured fat and porcine subcutaneous adipose tissue (pSAT). The results indicated that the fatty acid composition and content of cultured fat had a certain similarity with pSAT; specifically, the content of key monounsaturated fatty acid (MUFA) that create pork flavor in cultured fat, such as C18:1(n-12), C18:1(n-9) and C19:1(n-9)T, were close to that of pSAT. Therefore, this research indicated that APC is a promising candidate cell type for the production of cultured fat.
Subject(s)
Bioprinting , Swine , Animals , Flow Cytometry , Adipocytes , Stem Cells , Fatty AcidsABSTRACT
Stemness decline of muscle stem cells (MuSCs) is a significant problem in cultured meat processing. In the present study, three flavonoids (quercetin, icariin, and 3,2'-dihydroxyflavone) with multi concentrations were evaluated to promote the proliferation and differentiation of porcine muscle stem cells. In the proliferation phase, 3,2'-dihydroxyflavone (10 µM) significantly amplified the cells by 34% and up-regulated the expression of paired box transcription factor 7 (PAX7) by 60%, which was higher than quercetin (75 nM) and icariin (7.5 nM). In the differentiation phase, quercetin (50 nM) showed the best pro-differentiation effect and up-regulated the expression of myosin heavy chain (MYHC) by 4.73-fold compared with the control group. These results indicated that flavonoids had a significant impact on promoting the proliferation and differentiation of porcine MuSCs, and 3,2'-dihydroxyflavone (10 µM) for proliferation and quercetin (50 nM) for differentiation were the optimal combinations.
Subject(s)
Flavonoids , Quercetin , Animals , Cells, Cultured , Flavonoids/metabolism , Flavonoids/pharmacology , Meat , Muscles , Quercetin/metabolism , Quercetin/pharmacology , Stem Cells/metabolism , SwineABSTRACT
Cultured meat is an emergent technology that cultivates cells in three-dimensional scaffolds to generate tissue for consumption. Fat makes an important contribution to the flavor and texture of traditional meat, but there are few reports on cultured fat. Here, we demonstrated the construction of cultured fat by inoculating porcine adipose-derived mesenchymal stem cell (ADSC) on peanut wire-drawing protein (PWP) scaffolds. First, we demonstrated that basic fibroblast growth factor (bFGF) promoted cell proliferation and maintained adipogenic differentiation ability. Then, we generated cultured fat and found that cultured fat decreased the texture of PWP scaffolds. Moreover, 43 volatile compounds were detected by headspace gas chromatography-ion mobility spectrometry (GC-IMS), of which 17 volatile compounds showed no significant differences between cultured fat and porcine subcutaneous adipose tissue (pSAT), which indicated that cultured fat and pSAT had certain similarities. Collectively, this research has great promise for improving the quality of cultured meat.
Subject(s)
Arachis , Subcutaneous Fat , Animals , Cell Differentiation , Cells, Cultured , Gas Chromatography-Mass Spectrometry , SwineABSTRACT
Cyclophosphaty -45mide (Cyc) chemotherapy in young female cancer patients is associated with an increased risk of premature ovarian insufficiency (POI). This study was designed to investigate the protective role of melatonin (Mel) as an adjuvant against Cyc-induced POI. Female mice received a single intraperitoneal (i.p.) dose of Cyc (75 mg/kg). Mel protection was achieved in mice after i.p. injection of melatonin (50 mg/kg) every 24 h for four consecutive days prior to chemotherapy initiation and for 14 additional days. Ovarian reserve testing, hormonal assays for follicle-stimulating hormone, luteinizing hormone, and anti-Müllerian hormone (AMH), assessment of the oxidative stress status, and measurement of the relative expression of genes in PTEN/AKT/FOXO3a and mitochondrial apoptosis pathways were performed. The results showed that treatment with 50 mg/kg Mel significantly prevented Cyc-induced over-activation of primordial follicles by maintaining the plasma level of AMH and subsequently preventing litter size reduction in mice treated with Cyc chemotherapy. Importantly, Mel treatment significantly prevented ovarian granulosa cell loss by inhibiting the mitochondrial apoptotic pathway. Identifying the protective actions of Mel against Cyc-induced primordial follicle loss has important implications for fertility maintenance in young cancer patients undergoing chemotherapy.
Subject(s)
Melatonin , Primary Ovarian Insufficiency , Animals , Anti-Mullerian Hormone , Apoptosis , Cyclophosphamide/adverse effects , Female , Granulosa Cells , Humans , Melatonin/pharmacology , Melatonin/therapeutic use , Mice , Primary Ovarian Insufficiency/chemically induced , Primary Ovarian Insufficiency/prevention & controlABSTRACT
Objective: To explore the efficacy of photodynamic therapy combined with chemotherapy, targeted therapy, and immunotherapy in poorly differentiated gastric adenocarcinoma (GAC). Background: Advanced GAC has high malignancy and mortality rate. To date, no study has applied photodynamic treatment (PDT) combined with chemo-, targeted, and immunotherapy to treat this cancer. Patient and methods: Clinical data of a patient diagnosed with poorly differentiated GAC admitted to the department of oncology of the Lanzhou University Second Hospital were retrospectively analyzed. The patient underwent four PDT procedures combined with chemo-, targeted, and immunotherapy. Results: A 72-year-old male patient received combination therapy of PDT. This treatment resolved the cancerous tissues and levels of tumor markers. There was no recurrence and metastasis during a 7-month follow-up. Conclusions: Combination therapy of PDT can effectively treat tumors and may be a method suitable for elderly patients with advanced GAC.
Subject(s)
Adenocarcinoma , Photochemotherapy , Stomach Neoplasms , Adenocarcinoma/drug therapy , Adenocarcinoma/pathology , Aged , Humans , Immunotherapy/methods , Male , Photochemotherapy/methods , Retrospective Studies , Stomach Neoplasms/drug therapy , Stomach Neoplasms/pathologyABSTRACT
In summer, heat stress is one of the primary reasons for the compromised health and low milk productivity of dairy cows. Hyperthermia affects milk synthesis and secretion in the mammary glands of dairy cows. As molecules for intercellular communication, milk-derived exosomes carry genetic material, proteins, and lipids, playing a crucial role in mammary tissue growth and milk synthesis in dairy cows. The aim of this study was to explore the milk exosomal miRNA profile of heat-stressed and normal Holstein cows. We isolated and identified milk exosomes to screening for differentially expressed miRNAs using small RNA sequencing. Then, TargetScan and miRanda algorithms were used to predict the putative targets of the differentially expressed miRNAs, whereas GO and KEGG pathway enrichment analyses were performed for the differentially expressed miRNA-target genes. Our results showed that 215 miRNAs were significantly differentially expressed in heat-stressed milk exosomes, of which one was upregulated and 214 were significantly downregulated. GO and KEGG enrichment analyses indicated that differentially expressed miRNAs might play a role in apoptosis, autophagy, and the p38 MAPK pathway. qRT-PCR assay verified that the expression of miRNAs was consistent with the sequencing results, warranting further verification of their specific targets of action. In conclusion, changes in the miRNA expression profile of milk exosomes indicated the role of exosomal miRNAs in regulating heat stress resistance and apoptosis in dairy cows. Our results suggested that milk-derived exosomal miRNAs could increase mammary gland resistance to heat stress, thereby enhancing milk synthesis in dairy cows.
Subject(s)
Exosomes , Heat-Shock Response , MicroRNAs , Milk/chemistry , Animals , Cattle , Computational Biology , Exosomes/genetics , Female , Gene Expression Profiling , Heat-Shock Response/genetics , MicroRNAs/geneticsABSTRACT
BACKGROUND: Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder characterized by abdominal pain, diarrhea or constipation, and changes in defecation patterns. No organic disease is found to explain these symptoms by routine clinical examination. This study aims to investigate the efficacy and safety of acupuncture therapy for IBS patients compared with those of conventional treatments. We also aim to identify the optimal acupoint combination recommended for IBS and to clarify the clinical advantage of the "multiacupoint co-effect and synergistic effect." METHODS AND ANALYSIS: A total of 204 eligible patients who meet the Rome IV criteria for IBS will be randomly stratified into acupuncture group A, acupuncture group B, or the control group in a 1:1:1 ratio with a central web-based randomization system. The prespecified acupoints used in the control group will include bilateral Tianshu (ST25), Shangjuxu (ST37), Neiguan (PC6), and Zusanli (ST36). The prespecified acupoints used in experimental group A will include bilateral Tianshu (ST25), Shangjuxu (ST37), and Neiguan (PC6). The prespecified acupoints used in experimental group B will include bilateral Tianshu (ST25), Shangjuxu (ST37), and Zusanli (ST36). Each patient will receive 12 acupuncture treatments over 4 weeks and will be followed up for 4 weeks. The primary outcome is the IBS-Symptom Severity Scale (IBS-SSS) score. The secondary outcomes include the Bristol Stool Form Scale (BSFS), Work and Social Adjustment Score (WSAS), IBS-Quality of Life (IBS-QOL), Self-Rating Anxiety Scale (SAS), and Self-Rating Depression Scale (SDS) scores. Both the primary outcome and the secondary outcome measures will be collected at baseline, at 2 and 4 weeks during the intervention, and at 6 weeks and 8 weeks after the intervention. ETHICS AND DISSEMINATION: The entire project has been approved by the ethics committee of the Beijing University of Chinese Medicine (2020BZYLL0903). DISCUSSION: This is a multicenter randomized controlled trial for IBS in China. The findings may shed light on the efficacy of acupuncture as an alternative to conventional IBS treatment. The results of the trial will be disseminated in peer-reviewed publications. TRIAL REGISTRATION: Chinese Clinical Trials Register ChiCTR2000041215 . First registered on 12 December 2020. http://www.chictr.org.cn/ .
Subject(s)
Acupuncture Therapy , Irritable Bowel Syndrome , Acupuncture Points , Acupuncture Therapy/adverse effects , Diarrhea , Humans , Irritable Bowel Syndrome/diagnosis , Irritable Bowel Syndrome/therapy , Multicenter Studies as Topic , Quality of Life , Randomized Controlled Trials as Topic , Treatment OutcomeABSTRACT
High ambient temperature is one of the most important environmental factors that caused the reduction of livestock productivity and the increase of mortality. It has been shown that heat stress could affect the meat quality characteristics by physiological and metabolic perturbations in live livestock. Rosmarinic acid (RA) is a natural polyphenolic phytochemical compound that has many important biological activities, such as antioxidant, antimutagenic, and antitumor. The purpose of this study was to investigate the possible function and mechanism of RA on myoblast proliferation and differentiation under heat stress condition. The results showed that heat stress reduced the viability of myoblast and increased the percentage of apoptotic cells, and it also disrupted myotube formation by altering the expression of myogenic regulatory factors MyoD, myogenin, and MyHC. However, pretreatment of RA can protect C2C12 cells from heat stress-induced apoptosis, and it also increased the expression level of MyoD, myogenin, and MyHC under heat stress, which indicated that RA have protective effect on heat stress-caused failure of myotube formation during myoblast differentiation. Above all, our finding demonstrated that RA can promote the differentiation of C2C12 myoblast and maintain the formation of myotubes even under heat stress condition.
Subject(s)
Cell Differentiation , Cinnamates/pharmacology , Depsides/pharmacology , Heat-Shock Response , Muscle Fibers, Skeletal/pathology , Myoblasts/pathology , Protective Agents/pharmacology , Animals , Apoptosis/drug effects , Cell Differentiation/drug effects , Cell Line , Cell Survival/drug effects , Cinnamates/chemistry , Depsides/chemistry , Gene Expression Regulation/drug effects , Heat-Shock Response/drug effects , Mice , Muscle Fibers, Skeletal/drug effects , MyoD Protein/genetics , MyoD Protein/metabolism , Myoblasts/drug effects , Myogenin/genetics , Myogenin/metabolism , Protective Agents/chemistry , RNA, Messenger/genetics , RNA, Messenger/metabolism , Rosmarinic AcidABSTRACT
Infective endocarditis caused by Neisseria macacae in humans is extremely rare. We presented here a case of N. macacae infective endocarditis in a 61-year-old man with a native aortic valve infection. N. macacae was isolated from blood culture and was detected by nanopore-based metagenomic sequencing in the vegetations. Finally, the patient recovered completely after surgery and antibiotic therapy.
Subject(s)
Endocarditis, Bacterial/diagnosis , Endocarditis, Bacterial/therapy , Neisseria/isolation & purification , Sequence Analysis, DNA/methods , Anti-Bacterial Agents/therapeutic use , Blood Culture , Endocarditis, Bacterial/blood , Heart Valve Prosthesis Implantation , Humans , Male , Middle Aged , Nanopore Sequencing , Neisseria/genetics , Neisseria/growth & development , Treatment OutcomeABSTRACT
During a survey of plant parasitic nematodes in 2019, at Gansu Province, China, the stunt nematode Tylenchorhynchus zeae was found parasitizing corn seedlings. Females, males and juveniles of T. zeae were observed on soil and roots samples of corn after processing and extraction. This population of stunt nematodes was identified based on morphological and by sequencing the ITS1 region of rDNA and D2/D3 fragments of the 28 S rRNA. The ITS1 and the D2/D3 sequences of this population, shared 99.00 to 99.05% and 99.43 to 99.73% of similarity with sequences corresponding to T. zeae in GenBank, respectively. This is the first report of T. zeae infecting corn in Gansu Province, northwest China.During a survey of plant parasitic nematodes in 2019, at Gansu Province, China, the stunt nematode Tylenchorhynchus zeae was found parasitizing corn seedlings. Females, males and juveniles of T. zeae were observed on soil and roots samples of corn after processing and extraction. This population of stunt nematodes was identified based on morphological and by sequencing the ITS1 region of rDNA and D2/D3 fragments of the 28 S rRNA. The ITS1 and the D2/D3 sequences of this population, shared 99.00 to 99.05% and 99.43 to 99.73% of similarity with sequences corresponding to T. zeae in GenBank, respectively. This is the first report of T. zeae infecting corn in Gansu Province, northwest China.
ABSTRACT
OBJECTIVE: To analyze and investigate the expression levels of HES1, C-MYC and NF-kB in peripheral blood of patients with T cell acute lymphoblastic leukemia (T-ALL) and their significance. METHODS: Sixty patients with T-ALL and 60 patients with acute myelogenous leukemia (AML) diagnosed in our hospital from June 2012 to March 2015 were enrolled in T-ALL group and AML group, respectively. Another 30 healthy people were enrolled in the control group. Peripheral blood was collected to detect the expression levels of HES1, C-MYC and NF-kB by RT-PCR. The general data and the expression of HES1, C-MYC and NF-kB in peripheral blood were compared among the patients with different type of leukemia, cytogenetical types and different prognosis. RESULTS: There was no significant difference in baseline data, such as age and sex among the 3 groups (Pï¼0.05). The Hb level, WBC and Plt count, BM blast cell ratio in T-ALL and AML groups all were significantly higher than those in control group (Pï¼0.01), but there were no statistical difference in above-mentioned indicators between T-ALL and AML groups (Pï¼0.05). The expression levels of HES1, C-MYC and NF-kB in peripheral blood among 3 groups were significantly differenct (Pï¼0.01), the expressions levels of HES1, C-MYC and NF-kB in T-ALL and AML groups were significantly higher than those in control were significantly group (Pï¼0.01), moreover, the expression levels of above-mentional indicators in T-ALL groups were significantly higher than than those in AML group (Pï¼0.01). The expression levels of HES1, C-MYC and NF-kB iin T-ALL patients with poor prognosis were significantly higher than those in T-ALL patients with favorable prognosis (Pï¼0.01); the expression levels of HES1, C-MYC and NF-kB in peripheral blood of patients with different theraptic efficacy were follow: complete remission groupï¼partial remission groupï¼no remission group (Pï¼0.01). CONCLUSION: The HES1, C-MYC and NF-kB are highly expressed in peripheral blood of the patients with T-ALL, moreover, the expression levels maybe different, because of the cytogenetic, and theraptic efficacy.
Subject(s)
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma , Humans , Leukemia, Myeloid, Acute , NF-kappa B , Remission Induction , T-Lymphocytes , Transcription Factor HES-1ABSTRACT
Acute pancreatitis (AP) is a common and destructive inflammatory condition of the pancreas. Hypertriglyceridemia-induced acute pancreatitis (HTG-AP) has become the second major cause of AP. Although the association between HTG and AP is well established, HTG as a risk factor of AP in the general population is not well identified. In this review, we summarize recent progress in our understanding of the pathogenesis of HTG-AP and clinical management of this disease. The mechanism responsible for HTG-AP is related to high-level free fatty acid (FFA), microcirculatory disorder, oxidative stress, Ca2+ overload, and genetic polymorphism. Heparin and insulin therapy in diabetic patients with HTG can dramatically reduce triglyceride levels. Use of plasmapheresis is still experimental and better-designed studies are needed to evaluate the promise in the management of HTG-AP. Dietary intervention, lifestyle changes, and control of secondary causes are critical to the management and treatment of HTG-AP.
Subject(s)
Pancreatitis , Acute Disease , Heparin/therapeutic use , Humans , Hypertriglyceridemia/blood , Hypertriglyceridemia/complications , Hypertriglyceridemia/drug therapy , Hypertriglyceridemia/genetics , Insulin/therapeutic use , Pancreatitis/blood , Pancreatitis/drug therapy , Pancreatitis/etiology , Pancreatitis/geneticsABSTRACT
BACKGROUND AND AIMS: The lack of valid therapeutic approach that can ameliorate the manifestations of NASH is a barrier to therapeutic development. Therefore, we investigate the novel role of Methyl Palmitate (MP) in preventing NASH and the possible mechanism involved. METHODS: 50 Male C57BL/6 J mice were randomly divided into 5 groups (n = 10). The control group was fed control diet; model group was fed MCD diet; MP 1 group was fed MCD diet supplemented with MP (75 mg/kg/day); MP 2 group was fed MCD plus MP diet (150 mg/kg/day); and MP 3 group was fed MCD plus MP diet (300 mg/kg/day). Histological staining's, and commercially available kits for serum ALT and AST and hepatic contents of TG, TC, MDA, SOD, and GSH were used to assess NASH. Furthermore, relative liver protein and gene expression levels were determined by Western Blot and qPCR, respectively. RESULTS: Mice fed MCD diet developed NASH, which was markedly improved by MP in a dose-dependent manner. MP treatment improved hepatic content of TG, TC, MDA, SOD and GSH and serum levels of ALT and AST. In vivo studies showed that MP treatment activated PPARα expression, that in turns, promoted ß-oxidation protein and gene expressions, suppressed TNFα, MCP1, TGFß1 and Colla1 protein and gene expression levels, contributing to the prevention of NASH. CONCLUSIONS: Our results indicated that MP could successfully prevent NASH. This effect of MP was mediated through induction of PPARα pathway. This study provides a novel therapeutic target that plays pivotal role in the prevention of NASH.
Subject(s)
Non-alcoholic Fatty Liver Disease/metabolism , Non-alcoholic Fatty Liver Disease/prevention & control , PPAR alpha/biosynthesis , Palmitates/therapeutic use , Animals , Choline Deficiency/complications , Choline Deficiency/metabolism , Hep G2 Cells , Humans , Lipid Peroxidation/drug effects , Lipid Peroxidation/physiology , Male , Methionine/deficiency , Mice , Mice, Inbred C57BL , Non-alcoholic Fatty Liver Disease/etiology , Palmitates/pharmacologyABSTRACT
The adipokine Chemerin has been reported to regulate differentiation and metabolism of adipocytes, but the mechanism underlying lipolysis is still largely unknown. The purpose of this study was to explore whether ERK1/2 pathway is involved in regulating Chemerin during bovine intramuscular mature adipocyte lipolysis. Intramuscular mature adipocytes of dairy bull calves were cultured in vitro and were treated with Chemerin or U0126, which is an inhibitor of ERK1/2 pathway. The results showed that TG content in cells was significantly decreased, glycerol and free fatty acid were significantly increased in cell culture media, and the expression of phosphorylated ERK1/2 in cells was increased in Chemerin-treated group, suggested that ERK1/2 pathway was involved in regulation of lipolysis by Chemerin. In addition, the expression of lipolytic-related critical factors ATGL, HSL, LPL, PPARα, UCP3, and CPT1 were upregulated, but the expression of adipogenic key factors, including PPARγ and C/EBPα were downregulated by Chemerin. Interestingly, all the effects of Chemerin on genes expression in intramuscular mature adipocytes or fat tissue were inhibited by U0126, showed that the function of Chemerin to promote adipose decomposition will be significantly weakened if the ERK1/2 pathway is suppressed, and confirmed that ERK1/2 pathway is involved in mediate Chemerin-enhanced lipolysis. In conclusion, the study demonstrated that Chemerin induce intramuscular mature adipocytes lipolysis through activation of the ERK1/2 pathway. Our research at least provide partial mechanisms of Chemerin on lipolysis and deposition of intramuscular fat tissue of dairy bull calves.
ABSTRACT
BACKGROUND AND AIMS: Non-alcoholic steatohepatitis (NASH) is the hepatic manifestation of metabolic syndrome and is characterized by steatosis, inflammation, and fibrosis. We aim to characterize the hepatoprotective effects of Leonurine hydrochloride (LH) and the possible pathway in a cell and rodent model of diet-induced steatohepatitis (NASH). METHODS: For in vitro studies, Palmitic acid (PA) and free fatty acid (FFA) induced HepG2 and HL7702 steatosis cell models were used. For in vivo studies, NASH was induced by feeding mice MCD diet. These mice received either placebo or LH at three different doses (50ã100ã200 mg/kg/day) for 6 weeks. Histological staining's, and commercially available kits for ALT and AST and hepatic contents of TG, TC, MDA, SOD, and GSH were used to assess NASH. Furthermore, relative liver protein and gene expression levels were determined by Western Blot and qPCR, respectively. RESULTS: After establishing NASH models, LH treatment improved lipid accumulation, hepatic contents of TG, TC, and expression levels of ALT and AST in dose-dependent manner. Also, LH improved MDA, SOD, and GSH expression levels. The results of RT-PCR and Western blotting showed that LH upregulated the expression of AMPK phosphorylation and downregulated SREBP-1c and its target genes expression level. CONCLUSIONS: Our data reveal the promising role of Leonurine hydrochloride in the prevention and treatment of NASH, in vitro and in vivo. This effect may be partially mediated by the AMPK/SREBP1 pathway. These findings provide a novel therapeutic target for the clinical treatment of NASH.
Subject(s)
Adenylate Kinase/metabolism , Gallic Acid/analogs & derivatives , Non-alcoholic Fatty Liver Disease/metabolism , Non-alcoholic Fatty Liver Disease/prevention & control , Signal Transduction/drug effects , Sterol Regulatory Element Binding Protein 1/metabolism , Animals , Choline Deficiency/complications , Choline Deficiency/metabolism , Dose-Response Relationship, Drug , Gallic Acid/pharmacology , Gallic Acid/therapeutic use , Hep G2 Cells , Humans , Male , Methionine/deficiency , Mice , Mice, Inbred C57BL , Non-alcoholic Fatty Liver Disease/etiology , Protective Agents/pharmacology , Protective Agents/therapeutic use , Signal Transduction/physiology , Sterol Regulatory Element Binding Protein 1/antagonists & inhibitorsABSTRACT
We investigated the effects of ulinastatin on early postoperative cognitive dysfunction (POCD) after one-lung ventilation (OLV) surgery in elderly patients receiving neoadjuvant chemotherapy. Eighty elderly patients with preoperative neoadjuvant chemotherapy scheduling for radical esophagectomy under OLV were recruited. They were randomly divided into an ulinastatin pretreatment group (U group, n = 40) and a control group (C group, n = 40). The U group received 10,000 U/kg ulinastatin before anesthesia and 5000 U/kg daily on postoperative days 1 to 3, while C group received saline. Levels of interleukin (IL)-6, IL-10, C-reactive protein (CRP), and S-100ß protein were assayed before surgery, at the end of surgery, and on postoperative days 1 and 3. Patients underwent cognitive assessment 1 day before and 7 days after surgery. 38 patients in U group and 37 patients in C group completed the neuropsychological tests. The U group had a lower incidence of POCD than C group (23.7 % versus 45.9 %, P = 0.043). The levels of S-100ß protein, IL-6, IL-10, and CRP in both groups increased after surgery. The postoperative concentrations of S-100ß protein, IL-6, and CRP in U group were lower than those in C group. On postoperative day 3, compared with C group, the level of CRP in U group was lower, while that of IL-10 was higher. These findings demonstrate that ulinastatin can attenuate the elevation of S100ß protein levels and the incidence of POCD, most likely by the mechanism of reducing serum IL-6 and CRP levels and increasing IL-10 levels.