Glucagon-like peptide1(GLP-1)is secreted from Langerhans cells in response to oral nutrient intake.Glucagon-like peptide-1 receptor agonists(GLP-1RAs)are a new class of incretin-based anti-diabetic drugs.They function...Glucagon-like peptide1(GLP-1)is secreted from Langerhans cells in response to oral nutrient intake.Glucagon-like peptide-1 receptor agonists(GLP-1RAs)are a new class of incretin-based anti-diabetic drugs.They function to stimulate insulin secretion while suppressing glucagon secretion.GLP-1-based therapies are now well established in the management of type 2 diabetes mellitus(T2DM),and recent literature has suggested potential applications of these drugs in the treatment of obesity and for protection against cardiovascular and neurological diseases.As we know,along with change in lifestyles,the prevalence of non-alcoholic fatty liver disease(NAFLD)in China is rising more than that of viral hepatitis and alcoholic fatty liver disease,and NAFLD has become the most common chronic liver disease in recent years.Recent studies further suggest that GLP-1RAs can reduce transaminase levels to improve NAFLD by improving blood lipid levels,cutting down the fatcontent to promote fat redistribution,directly decreasing fatty degeneration of the liver,reducing the degree of liver fibrosis and improving inflammation.This review shows the NAFLD-associated effects of GLP-1RAs in animal models and in patients with T2DM or obesity who are participants in clinical trials.展开更多
Nonalcoholic fatty liver disease(NAFLD)has been recognized as the most common liver metabolic disease,and it is also a burgeoning health problem that affects one-third of adults and is associated with obesity and insu...Nonalcoholic fatty liver disease(NAFLD)has been recognized as the most common liver metabolic disease,and it is also a burgeoning health problem that affects one-third of adults and is associated with obesity and insulin resistance now.Thyroid hormone(TH)and its receptors play a fundamental role in lipid metabolism and lipid accumulation in the liver.It is found that thyroid receptor and its isoforms exhibit tissue-specific expression with a variety of functions.TRβ1 is predominantly expressed in the brain and adipose tissue and TRβ2 is the major isoform in the liver,kidney and fat.They have different functions and play important roles in lipid metabolism.Recently,there are many studies on the treatment of NAFLD with TH and its analogues.We review here that thyroid hormone and TR are a potential target for pharmacologic treatments.Lipid metabolism and lipid accumulation can be regulated and reversed by TH and its analogues.展开更多
Recently, obesity is a well-recognized risk factor of type 2 diabetes and cardiovascular disease. There is more and more sufficient evidence that excess body weight is an avoidable cause of excess cancers including ga...Recently, obesity is a well-recognized risk factor of type 2 diabetes and cardiovascular disease. There is more and more sufficient evidence that excess body weight is an avoidable cause of excess cancers including gastrointestinal, endometrial, esophageal adenocarcinoma, colorectal, postmenopausal breast, prostate, and renal cancers. The mechanism that obesity association with cancer is remains not well understood. There be some most studied hypothesized mechanisms such as, high levels of insulin and free levels of insulin-like growth factors (IGFs), sex hormones, adipocytokines, inflammatory cytokines, c-Myc (or Myc) oncogenic transcription factor, obesity-induced hypoxia and Warburg effect, and so on. In the future, the potential mechanisms and conclusions in obesity associated with increased risk for developing cancer, and the underlying cellular and molecular mechanisms will be studied.展开更多
·AIM:To assess the reproducibility of macular perfusion parameters in non-proliferative diabetic retinopathy(NPDR)patients measured by different examiners and two different sweep modes of optical coherence tomogr...·AIM:To assess the reproducibility of macular perfusion parameters in non-proliferative diabetic retinopathy(NPDR)patients measured by different examiners and two different sweep modes of optical coherence tomography angiography(OCTA).·METHODS:Ninety-eight(98 eyes)patients with NPDR were included in this study.All participates were performed three times using Cirrus OCTA with Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode by two examiners.The macular foveal avascular zone(FAZ)and vessel density(VD)in the superficial retinal layer(SRL)were measured.The reproducibility of the measurements was evaluated with intraclass correlation coefficients(ICC)and coefficient of variation(CoV).·RESULTS:The intra-mode ICCs of Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode were 0.957 to 0.959 and 0.964 to 0.977,respectively;and the inter-mode ICCs were 0.962 to 0.970.The intra-examiner ICCs of macular perfusion parameters were>0.950;and the inter-examiner ICCs were0.928 to 0.969.All CoVs were<1.0%.·CONCLUSION:Cirrus OCTA can measure macular perfusion parameters in NPDR patients with excellent reproducibility.The measurements of FAZ and VD in the SRL determined by Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode are highly consistent and both sweep modes are suitable for macular perfusion parameters measurement.展开更多
·AIM:To evaluate the efficacy and safety of full-thickness sutures combined with intracameral air injection(FTS-AI)versus pre-Descemet’s membrane sutures combined with intracameral air injection(PDS-AI)in the ma...·AIM:To evaluate the efficacy and safety of full-thickness sutures combined with intracameral air injection(FTS-AI)versus pre-Descemet’s membrane sutures combined with intracameral air injection(PDS-AI)in the management of acute corneal hydrops in keratoconus.·METHODS:The research included 8 patients(8 eyes)suffering from acute corneal hydrops caused by keratoconus.Four patients were randomly assigned to FTS-AI.And the other four were randomly assigned to PDS-AI.Corneal oedema,visual acuity,corneal thickness were assessed during follow-up.·RESULTS:The demographics,preoperative duration of symptoms and severity of corneal hydrops between the two groups were not significantly different.The mean corneal oedema resolution time after FTS-AI and PDSAI were 11±1.15 and 15±1.41 d,respectively(P=0.005).The maximum corneal thickness of the scarred region decreased in both groups at one week postoperatively(P<0.05).No obvious difference was found in the mean maximal corneal thickness between the two groups postoperatively.The BCVA improved significantly after FTS-AI and PDS-AI at three months postoperatively.No obvious difference was found in the BCVA after FTS-AI and PDS-AI at three months postoperatively.·CONCLUSION:FTS-AI and PDS-AI are safe and effective therapies to accelerate the resolution of corneal oedema in acute corneal hydrops secondary to keratoconus.Despite faster resolution of corneal oedema in the FTS-AI group,we recommend PDS-AI to avoid potential endothelium cell damage.展开更多
The cause of the premature failure of 304 stainless steel tube heat exchanger was investigated.The unique skeleton structure inside the leakage point reveals that this is a new damage mechanism caused by a δ+γ two-p...The cause of the premature failure of 304 stainless steel tube heat exchanger was investigated.The unique skeleton structure inside the leakage point reveals that this is a new damage mechanism caused by a δ+γ two-phase structure and crevice corrosion.The three-dimensional structure of the leakage point was demonstrated using X-ray diffraction topography.The results of scanning electron microscope examination show the microstructure of the weld to be columnar and dendritic.It is found by electron probe microscope analysis and transmission electron microscopy that columnar dendrites consisted of γ-dendrite and an amount of δ-ferrite phases at the dendrite trunk.Simulated corrosion test results confirmed that the corrosion medium was the chloride ion.Crevice corrosion of chloride ions occurred at weld defects on the inner wall thus forming a concentration cell.Grains of columnar dendrites were then corroded by chloride ions and δ-ferrite phases on the grain boundaries were retained,which formed the particular skeleton corrosion structure.As a result,it led to leakage when the corrosion of weld occurred from the inner wall to the outer wall.展开更多
Next-generation sequencing has allowed identification of millions of somatic mutations in human cancer cells.A key challenge in interpreting cancer genomes is to distinguish drivers of cancer development among availab...Next-generation sequencing has allowed identification of millions of somatic mutations in human cancer cells.A key challenge in interpreting cancer genomes is to distinguish drivers of cancer development among available genetic mutations.To address this issue,we present the first webbased application,consensus cancer driver gene caller(C^3),to identify the consensus driver genes using six different complementary strategies,i.e.,frequency-based,machine learning-based,functional bias-based,clustering-based,statistics model-based,and network-based strategies.This application allows users to specify customized operations when calling driver genes,and provides solid statistical evaluations and interpretable visualizations on the integration results.C^3 is implemented in Python and is freely available for public use at http://drivergene.rwebox.com/c3.展开更多
CRISPR and adeno-associated virus are becoming powerful tools to remedy genetic disorders in somatic cells of adulthood.A recent study published in Science(Matharu et al.,2019)safely targeted the non-coding genomic re...CRISPR and adeno-associated virus are becoming powerful tools to remedy genetic disorders in somatic cells of adulthood.A recent study published in Science(Matharu et al.,2019)safely targeted the non-coding genomic region of Sim1 and MC4R with rAAV packed with CRISPRa,and successfully rescued the obesity syndrome caused by hap?loinsufficiency in a murine model,which shed light on their potential therapeutic applications in the future(Matharu et al.,2019).展开更多
基金Project(cstc2015yykfC0001)supported by the National Engineering Research Centre for Magnesium Alloys,ChinaProject supported by State Key Laboratory of Mechanical Transmission of Chongqing University,China
文摘Glucagon-like peptide1(GLP-1)is secreted from Langerhans cells in response to oral nutrient intake.Glucagon-like peptide-1 receptor agonists(GLP-1RAs)are a new class of incretin-based anti-diabetic drugs.They function to stimulate insulin secretion while suppressing glucagon secretion.GLP-1-based therapies are now well established in the management of type 2 diabetes mellitus(T2DM),and recent literature has suggested potential applications of these drugs in the treatment of obesity and for protection against cardiovascular and neurological diseases.As we know,along with change in lifestyles,the prevalence of non-alcoholic fatty liver disease(NAFLD)in China is rising more than that of viral hepatitis and alcoholic fatty liver disease,and NAFLD has become the most common chronic liver disease in recent years.Recent studies further suggest that GLP-1RAs can reduce transaminase levels to improve NAFLD by improving blood lipid levels,cutting down the fatcontent to promote fat redistribution,directly decreasing fatty degeneration of the liver,reducing the degree of liver fibrosis and improving inflammation.This review shows the NAFLD-associated effects of GLP-1RAs in animal models and in patients with T2DM or obesity who are participants in clinical trials.
文摘Nonalcoholic fatty liver disease(NAFLD)has been recognized as the most common liver metabolic disease,and it is also a burgeoning health problem that affects one-third of adults and is associated with obesity and insulin resistance now.Thyroid hormone(TH)and its receptors play a fundamental role in lipid metabolism and lipid accumulation in the liver.It is found that thyroid receptor and its isoforms exhibit tissue-specific expression with a variety of functions.TRβ1 is predominantly expressed in the brain and adipose tissue and TRβ2 is the major isoform in the liver,kidney and fat.They have different functions and play important roles in lipid metabolism.Recently,there are many studies on the treatment of NAFLD with TH and its analogues.We review here that thyroid hormone and TR are a potential target for pharmacologic treatments.Lipid metabolism and lipid accumulation can be regulated and reversed by TH and its analogues.
文摘Recently, obesity is a well-recognized risk factor of type 2 diabetes and cardiovascular disease. There is more and more sufficient evidence that excess body weight is an avoidable cause of excess cancers including gastrointestinal, endometrial, esophageal adenocarcinoma, colorectal, postmenopausal breast, prostate, and renal cancers. The mechanism that obesity association with cancer is remains not well understood. There be some most studied hypothesized mechanisms such as, high levels of insulin and free levels of insulin-like growth factors (IGFs), sex hormones, adipocytokines, inflammatory cytokines, c-Myc (or Myc) oncogenic transcription factor, obesity-induced hypoxia and Warburg effect, and so on. In the future, the potential mechanisms and conclusions in obesity associated with increased risk for developing cancer, and the underlying cellular and molecular mechanisms will be studied.
基金Supported by National Natural Science Foundation of China(No.82070920)Major Clinical Research Projects of the Three-Year Action Plan for Promoting Clinicial Skills and Clinical Innovation in Municipal Hospitals(No.SHDC2020CR1043B-010)。
文摘·AIM:To assess the reproducibility of macular perfusion parameters in non-proliferative diabetic retinopathy(NPDR)patients measured by different examiners and two different sweep modes of optical coherence tomography angiography(OCTA).·METHODS:Ninety-eight(98 eyes)patients with NPDR were included in this study.All participates were performed three times using Cirrus OCTA with Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode by two examiners.The macular foveal avascular zone(FAZ)and vessel density(VD)in the superficial retinal layer(SRL)were measured.The reproducibility of the measurements was evaluated with intraclass correlation coefficients(ICC)and coefficient of variation(CoV).·RESULTS:The intra-mode ICCs of Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode were 0.957 to 0.959 and 0.964 to 0.977,respectively;and the inter-mode ICCs were 0.962 to 0.970.The intra-examiner ICCs of macular perfusion parameters were>0.950;and the inter-examiner ICCs were0.928 to 0.969.All CoVs were<1.0%.·CONCLUSION:Cirrus OCTA can measure macular perfusion parameters in NPDR patients with excellent reproducibility.The measurements of FAZ and VD in the SRL determined by Angiography 3×3 mm^(2)and 6×6 mm^(2)sweep mode are highly consistent and both sweep modes are suitable for macular perfusion parameters measurement.
基金Supported by the National Natural Science Foundation of China(No.82070920)Major Clinical Research Projects of the Three-Year Action Plan for Promoting Clinical Skills and Clinical Innovation in Municipal Hospitals(No.SHDC2020CR1043B-010)。
文摘·AIM:To evaluate the efficacy and safety of full-thickness sutures combined with intracameral air injection(FTS-AI)versus pre-Descemet’s membrane sutures combined with intracameral air injection(PDS-AI)in the management of acute corneal hydrops in keratoconus.·METHODS:The research included 8 patients(8 eyes)suffering from acute corneal hydrops caused by keratoconus.Four patients were randomly assigned to FTS-AI.And the other four were randomly assigned to PDS-AI.Corneal oedema,visual acuity,corneal thickness were assessed during follow-up.·RESULTS:The demographics,preoperative duration of symptoms and severity of corneal hydrops between the two groups were not significantly different.The mean corneal oedema resolution time after FTS-AI and PDSAI were 11±1.15 and 15±1.41 d,respectively(P=0.005).The maximum corneal thickness of the scarred region decreased in both groups at one week postoperatively(P<0.05).No obvious difference was found in the mean maximal corneal thickness between the two groups postoperatively.The BCVA improved significantly after FTS-AI and PDS-AI at three months postoperatively.No obvious difference was found in the BCVA after FTS-AI and PDS-AI at three months postoperatively.·CONCLUSION:FTS-AI and PDS-AI are safe and effective therapies to accelerate the resolution of corneal oedema in acute corneal hydrops secondary to keratoconus.Despite faster resolution of corneal oedema in the FTS-AI group,we recommend PDS-AI to avoid potential endothelium cell damage.
文摘The cause of the premature failure of 304 stainless steel tube heat exchanger was investigated.The unique skeleton structure inside the leakage point reveals that this is a new damage mechanism caused by a δ+γ two-phase structure and crevice corrosion.The three-dimensional structure of the leakage point was demonstrated using X-ray diffraction topography.The results of scanning electron microscope examination show the microstructure of the weld to be columnar and dendritic.It is found by electron probe microscope analysis and transmission electron microscopy that columnar dendrites consisted of γ-dendrite and an amount of δ-ferrite phases at the dendrite trunk.Simulated corrosion test results confirmed that the corrosion medium was the chloride ion.Crevice corrosion of chloride ions occurred at weld defects on the inner wall thus forming a concentration cell.Grains of columnar dendrites were then corroded by chloride ions and δ-ferrite phases on the grain boundaries were retained,which formed the particular skeleton corrosion structure.As a result,it led to leakage when the corrosion of weld occurred from the inner wall to the outer wall.
基金supported by the National Major Research and Innovation Program of China(Grant Nos.2017YFC0908500and 2016YFC1303205)National Natural Science Foundation of China(Grant No.61572361)+2 种基金Shanghai Rising-Star Program(Grant No.16QA1403900)Shanghai Natural Science Foundation Program(Grant No.17ZR1449400)Fundamental Research Funds for the Central Universities(Grant No.1501219106),China
文摘Next-generation sequencing has allowed identification of millions of somatic mutations in human cancer cells.A key challenge in interpreting cancer genomes is to distinguish drivers of cancer development among available genetic mutations.To address this issue,we present the first webbased application,consensus cancer driver gene caller(C^3),to identify the consensus driver genes using six different complementary strategies,i.e.,frequency-based,machine learning-based,functional bias-based,clustering-based,statistics model-based,and network-based strategies.This application allows users to specify customized operations when calling driver genes,and provides solid statistical evaluations and interpretable visualizations on the integration results.C^3 is implemented in Python and is freely available for public use at http://drivergene.rwebox.com/c3.
基金The work was supported by grants from National Key Research and Development Program of China(Grant No.2017YFA0103902)The National Natural Science Foundation of China(Grant Nos.81570760 and 31771283)the Fundamental Research Funds for the Central Universities of Tongji University.
文摘CRISPR and adeno-associated virus are becoming powerful tools to remedy genetic disorders in somatic cells of adulthood.A recent study published in Science(Matharu et al.,2019)safely targeted the non-coding genomic region of Sim1 and MC4R with rAAV packed with CRISPRa,and successfully rescued the obesity syndrome caused by hap?loinsufficiency in a murine model,which shed light on their potential therapeutic applications in the future(Matharu et al.,2019).
