Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 257
Filtrar
2.
Clin Chim Acta ; : 119680, 2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38642629

RESUMO

INTRODUCTION: Congenital dysfibrinogenemia (CD) is characterized by dysfunction induced by an abnormal fibrinogen molecule structure that results in blood coagulation dysfunction. The clinical manifestations of CD patients are asymptomatic, bleeding and thrombosis. The majority of patient are asymptomatic. However, the single fibrinogen detection method is easy to cause missed diagnosis or misdiagnosis of CD patients. The treatment strategies of CD patients with different clinical manifestations are also different. METHODS: Combing existing experimental technologies and studies, a simple and practical CD diagnostic criteria was proposed. And based on the relevant literature and existing treatment guidelines, more comprehensive treatment recommendations are summarized. RESULTS: In this new criteria, combination Clauss method and PT derived method was proposed to detect fibrinogen and its ratio was used to diagnose for CD. Diagnosis also needs to be combined the clinical manifestations, family investigation and genetic testing. According to different clinical manifestation (bleeding, thrombosis or asymptomatic), treatment methods and strategies are different. The treatment of CD patients should consider the patient's personal and family history of bleeding or thrombosis. Treatment of thrombosis and pregnancy may be more challenging. The risk of bleeding and thrombosis should be evaluated and balanced at all times during clinical treatment. These detailed treatment recommendations can provide reference for patients with different clinical manifestations of CD. CONCLUSIONS: The new CD diagnosis criteria and comprehensive treatment recommendations can effectively improve the diagnosis and treatment of CD.

3.
Artigo em Inglês | MEDLINE | ID: mdl-38651521

RESUMO

Understanding mass transfer mechanisms is vital for developing new material synthesis and densification technologies. Ion transport, serving both mass and charge transfer, is essential for the rapid preparation of high-performance fast ionic conductor thermoelectric materials like Zn4Sb3 and Cu2Q (Q = S, Se). In the case of dual-cation fast ion conductor materials like CuAgSe, exploring the relationship between cation transport becomes pertinent. In this study, copper (Cu) and selenium (Se) undergo a reaction in the presence of an electric field (∼15 A), resulting in the formation of the CuSe compound. Subsequent to this initial reaction, a subsequent thermal environment facilitates the interaction among Cu, CuSe, and Ag2Se, culminating in the rapid formation and densification of CuAgSe (with a relative density exceeding 99%) in just 30 s. Evidently, the diffusion of copper ions substantiates a pivotal role in facilitating mass transfer. As a result, CuAg1+xSe samples with different silver contents (x = 0.01, 0.02, 0.03, 0.04 and 0.05) can effectively inhibit cation vacancy, and introduce highly ordered Ag nanotwins to enhance the electrical transport performance. For CuAg1.04Se, a peak ZT value of 1.0 can be achieved at 673 K, which is comparable to the literatures. This work will guide the future electric field-assisted rapid mass transfer of materials.

4.
J Nurs Res ; 32(2): e323, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38488165

RESUMO

BACKGROUND: Type 2 diabetes mellitus (T2DM) is a common comorbidity in patients with chronic obstructive pulmonary disease (COPD) and has been associated with an increased risk of mortality in this population. PURPOSE: This study was designed to investigate the predictive factors of diabetes awareness (DA), including diabetes knowledge (DK), and diabetes care behaviors (DCB) among older people with both COPD and T2DM. METHODS: This was a cross-sectional descriptive correlation study. One hundred thirty-three older-age patients with COPD comorbid with T2DM receiving treatment at a chest hospital were enrolled as participants. Both DK and DCB were utilized to measure DA. The Diabetes Knowledge Questionnaire was utilized to measure DK, and the Summary of Diabetes Self-Care Activities was used to evaluate DCB. RESULTS: The average glycated hemoglobin (HbA1c) was 7.68% ( SD = 1.55%), with 74 (55.6%) participants having a level > 7%. The average DA was 46.46% ( SD = 13.34%), the average DK was 53.42% ( SD = 18.91%), and the average DCB was 39.50% ( SD = 16.66%). In terms of demographic variables, age, diabetes education, diabetes shared care, and HbA1c were all significantly associated with DA, DK, and DCB (all p s < .05). The overall variance in DA was significantly explained by diabetes education and HbA1c (all p s < .05). The overall variance in DK was significantly explained by age, diabetes education, and HbA1c. The overall variance in DCB was significantly explained by diabetes education and HbA1c (all p s < .05). CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Our study findings indicate that older adult patients with COPD comorbid with T2DM are at elevated risks of poor glycemic control and low DA. Healthcare professionals should be aware of these issues and develop appropriate DA plans to prevent poor glycemic control in this population. Providing accurate information on diabetes to older adults with COPD comorbid with T2DM is important to improving their DK and promoting better DCB.


Assuntos
Diabetes Mellitus Tipo 2 , Doença Pulmonar Obstrutiva Crônica , Humanos , Idoso , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/terapia , Hemoglobinas Glicadas , Estudos Transversais , Comorbidade , Doença Pulmonar Obstrutiva Crônica/complicações
5.
Cardiorenal Med ; 14(1): 227-234, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38537621

RESUMO

BACKGROUND: The mineralocorticoid receptor plays an important pathophysiological role in cardiorenal diseases by causing inflammation and fibrosis. Mineralocorticoid receptor antagonists (MRAs) are well known in treating cardiovascular disease and diverse nephropathies. However, the first-generation MRA (spironolactone) and the second-generation MRA (eplerenone) remain underutilized because of the risk of inducing severe adverse events. As a selective nonsteroidal MRA, finerenone is safer and more effective and improves cardiorenal outcomes in patients with chronic kidney disease (CKD) and type 2 diabetes mellitus (T2DM). However, the effect of finerenone on cardiorenal outcomes in patients of different races and kidney function (estimated glomerular filtration rate) is unclear. SUMMARY: In this review, we summarized the impact of finerenone on patients with CKD and T2DM from randomized controlled trials. The synthesis of published data aims to address the questions pertaining to the cardiorenal benefits of finerenone among various racial groups and different levels of kidney function. KEY MESSAGE: Finerenone presents racial differences and effects associated with kidney function in CKD and T2DM patients. Due to the limited data for subgroups, it is prudent to approach the conclusion with caution.


Assuntos
Taxa de Filtração Glomerular , Antagonistas de Receptores de Mineralocorticoides , Naftiridinas , Insuficiência Renal Crônica , Humanos , Naftiridinas/uso terapêutico , Naftiridinas/farmacologia , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/fisiopatologia , Insuficiência Renal Crônica/tratamento farmacológico , Antagonistas de Receptores de Mineralocorticoides/uso terapêutico , Antagonistas de Receptores de Mineralocorticoides/farmacologia , Taxa de Filtração Glomerular/efeitos dos fármacos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/fisiopatologia , Rim/fisiopatologia , Rim/efeitos dos fármacos , Grupos Raciais
6.
Org Lett ; 26(15): 3060-3064, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38552180

RESUMO

We described an iron(III) and BF3·OEt2-promoted oxygen transfer reaction of N-aryl-α,ß-unsaturated nitrones to prepare various N,O-difluoroboron ß-ketoiminates in good yields ranging from 24% to 87%. Control experiments revealed that the enaminone was the vital intermediate for the formation of N,O-difluoroboron ß-ketoiminates, and iron(III) combined with BF3·OEt2 played as cocatalyst to promote the oxygen transfer reaction through intramolecular cyclization and N-O bond cleavage. More importantly, an estrone-derived N,O-difluoroboron ß-ketoiminate was easily prepared in 40% yield from estrone in four steps.

7.
Am J Case Rep ; 25: e943270, 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38379277

RESUMO

BACKGROUND Hyperparathyroidism is a common issue in patients on long-term hemodialysis, necessitating parathyroidectomy with deep venipuncture. These patients frequently exhibit a heightened incidence of vascular calcification, complicating deep venipuncture and increasing the risk of associated complications. Therefore, a crucial aspect of preoperative assessment in this population involves identifying vascular calcification, with a preference for ultrasound-guided intraplane puncture. Special care is required to prevent blood vessel injuries and postoperative complications such as deep vein thrombosis. CASE REPORT We present the case of a 66-year-old woman with secondary hyperparathyroidism who encountered challenges during an internal jugular vein puncture, leading to subsequent thrombosis. Initial attempts were hindered by calcification of the internal jugular vein's vascular wall, resulting in stratified damage to the vessel's wall. However, the ultrasound-guided in-plane puncture technique successfully allowed the insertion of a central venous catheter without further damage to the vascular wall. On the postoperative fourth day, thrombus formation was observed in the damaged vascular wall from the initial puncture. CONCLUSIONS The ultrasound-guided in-plane puncture technique is advantageous in overcoming the difficulties associated with puncturing through deep vein calcification in patients with secondary hyperparathyroidism. This technique also diminishes the likelihood of complications such as venous thrombosis.


Assuntos
Cateterismo Venoso Central , Hiperparatireoidismo Secundário , Trombose , Calcificação Vascular , Feminino , Humanos , Idoso , Cateterismo Venoso Central/efeitos adversos , Flebotomia , Veias Jugulares/diagnóstico por imagem , Ultrassonografia de Intervenção/métodos , Hiperparatireoidismo Secundário/cirurgia
8.
Diabetes Ther ; 15(4): 781-799, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38402331

RESUMO

INTRODUCTION: Tirzepatide is a novel hypoglycemic agent for type 2 diabetes mellitus (T2DM). However, the pathophysiology of T2DM in Asians is different from that in non-Asians, and there is no evidence to explain the differences in the efficacy and safety of tirzepatide between different races. METHODS: A literature search was conducted in China National Knowledge Infrastructure (CNKI), PubMed, Cochrane Library, Clinical Trials.gov, and Embase databases for clinical studies of tirzepatide for T2DM. The data extraction process was done independently by two authors. All analyses were performed using STATA 14.0 software and Review Manager 5.3 software. RESULTS: A total of 2118 patients with T2DM from 6 studies were involved, with doses of tirzepatide ranging from 5 to 15 mg administered subcutaneously once weekly. The results showed that compared with control/placebo, tirzepatide was more effective in decreasing fasting blood glucose (FBG) in non-Asians than in Asians, and 10 mg rather than 15 mg was the optimal dose to decrease FBG. Similarly, non-Asians were more effective than Asians in improving glycated hemoglobin (HbA1c). Asians were significantly more effective than non-Asians in reducing body weight and ≥ 5% weight loss. In terms of adverse events, the incidence of gastrointestinal adverse events was higher in Asians than in non-Asians at the same dose, while the incidence of metabolic and nutrition disorders was higher in non-Asians than in Asians. CONCLUSION: Tirzepatide is a novel agent for the treatment of diabetes and has different efficacy in Asians and non-Asians. Asians were more likely to experience weight loss and gastrointestinal adverse events, whereas non-Asians were more likely to have better glycemic control and more metabolic and nutritional disorders. TRIAL REGISTRATION: PROSPERO registration no. CRD42023489588.

9.
J Transl Med ; 22(1): 159, 2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38365731

RESUMO

BACKGROUND: Proximal tubular cells (PTCs) play a critical role in the progression of diabetic kidney disease (DKD). As one of important progenitor markers, CD133 was reported to indicate the regeneration of dedifferentiated PTCs in acute kidney disease. However, its role in chronic DKD is unclear. Therefore, we aimed to investigate the expression patterns and elucidate its functional significance of CD133 in DKD. METHODS: Data mining was employed to illustrate the expression and molecular function of CD133 in PTCs in human DKD. Subsequently, rat models representing various stages of DKD progression were established. The expression of CD133 was confirmed in DKD rats, as well as in human PTCs (HK-2 cells) and rat PTCs (NRK-52E cells) exposed to high glucose. The immunofluorescence and flow cytometry techniques were utilized to determine the expression patterns of CD133, utilizing proliferative and injury indicators. After overexpression or knockdown of CD133 in HK-2 cells, the cell proliferation and apoptosis were detected by EdU assay, real-time cell analysis and flow analysis. Additionally, the evaluation of epithelial, progenitor cell, and apoptotic indices was performed through western blot and quantitative RT-PCR analyses. RESULTS: The expression of CD133 was notably elevated in both human and rat PTCs in DKD, and this expression increased as DKD progressed. CD133 was found to be co-expressed with CD24, KIM-1, SOX9, and PCNA, suggesting that CD133+ cells were damaged and associated with proliferation. In terms of functionality, the knockdown of CD133 resulted in a significant reduction in proliferation and an increase in apoptosis in HK-2 cells compared to the high glucose stimulus group. Conversely, the overexpression of CD133 significantly mitigated high glucose-induced cell apoptosis, but had no impact on cellular proliferation. Furthermore, the Nephroseq database provided additional evidence to support the correlation between CD133 expression and the progression of DKD. Analysis of single-cell RNA-sequencing data revealed that CD133+ PTCs potentially play a role in the advancement of DKD through multiple mechanisms, including heat damage, cell microtubule stabilization, cell growth inhibition and tumor necrosis factor-mediated signaling pathway. CONCLUSION: Our study demonstrates that the upregulation of CD133 is linked to cellular proliferation and protects PTC from apoptosis in DKD and high glucose induced PTC injury. We propose that heightened CD133 expression may facilitate cellular self-protective responses during the initial stages of high glucose exposure. However, its sustained increase is associated with the pathological progression of DKD. In conclusion, CD133 exhibits dual roles in the advancement of DKD, necessitating further investigation.


Assuntos
Antígeno AC133 , Diabetes Mellitus , Nefropatias Diabéticas , Animais , Humanos , Ratos , Linhagem Celular , Proliferação de Células , Diabetes Mellitus/patologia , Nefropatias Diabéticas/metabolismo , Células Epiteliais/patologia , Glucose/metabolismo , Hiperplasia/patologia , Antígeno AC133/genética , Antígeno AC133/metabolismo
10.
J Clin Nurs ; 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38358023

RESUMO

BACKGROUND/AIM: Efficient discharge for stroke patients is crucial but challenging. The study aimed to develop early predictive models to explore which patient characteristics and variables significantly influence the discharge planning of patients, based on the data available within 24 h of admission. DESIGN: Prospective observational study. METHODS: A prospective cohort was conducted at a university hospital with 523 patients hospitalised for stroke. We built and trained six different machine learning (ML) models, followed by testing and tuning those models to find the best-suited predictor for discharge disposition, dichotomized into home and non-home. To evaluate the accuracy, reliability and interpretability of the best-performing models, we identified and analysed the features that had the greatest impact on the predictions. RESULTS: In total, 523 patients met the inclusion criteria, with a mean age of 61 years. Of the patients with stroke, 30.01% had non-home discharge. Our model predicting non-home discharge achieved an area under the receiver operating characteristic curve of 0.95 and a precision of 0.776. After threshold was moved, the model had a recall of 0.809. Top 10 variables by importance were National Institutes of Health Stroke Scale (NIHSS) score, family income, Barthel index (BI) score, FRAIL score, fall risk, pressure injury risk, feeding method, depression, age and dysphagia. CONCLUSION: The ML model identified higher NIHSS, BI, and FRAIL, family income, higher fall risk, pressure injury risk, older age, tube feeding, depression and dysphagia as the top 10 strongest risk predictors in identifying patients who required non-home discharge to higher levels of care. Modern ML techniques can support timely and appropriate clinical decision-making. RELEVANCE TO CLINICAL PRACTICE: This study illustrates the characteristics and risk factors of non-home discharge in patients with stroke, potentially contributing to the improvement of the discharge process. REPORTING METHOD: STROBE guidelines.

11.
Clin Rehabil ; : 2692155241229398, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38317586

RESUMO

OBJECTIVE: To review the effectiveness of different physical therapies for acute and sub-acute low back pain supported by evidence, and create clinical recommendations and expert consensus for physiotherapists on clinical prescriptions. DATA SOURCES: A systematic search was conducted in PubMed and the Cochrane Library for studies published within the previous 15 years. REVIEW METHODS: Systematic review and meta-analysis, randomized controlled trials assessing patients with acute and sub-acute low back pain were included. Two reviewers independently screened relevant studies using the same inclusion criteria. The Physiotherapy Evidence Database and the Assessment of Multiple Systematic Reviews tool were used to grade the quality assessment of randomized controlled trials and systematic reviews, respectively. The final recommendation grades were based on the consensus discussion results of the Delphi of 22 international experts. RESULTS: Twenty-one systematic reviews and 21 randomized controlled trials were included. Spinal manipulative therapy and low-level laser therapy are recommended for acute low back pain. Core stability exercise/motor control, spinal manipulative therapy, and massage can be used to treat sub-acute low back pain. CONCLUSIONS: The consensus statements provided medical staff with appliable recommendations of physical therapy for acute and sub-acute low back pain. This consensus statement will require regular updates after 5-10 years.

12.
Front Biosci (Landmark Ed) ; 29(2): 58, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38420829

RESUMO

BACKGROUND: Pyroptosis is a critical form of cell death during the development of chronic kidney disease (CKD). Tripartite motif 6 (TRIM6) is an E3-ubiquitin ligase that participates in the progression renal fibrosis (RF). The aim of this study was to investigate the roles of TRIM6 and Glutathione peroxidase 3 (GPX3) in oxidative stress-induced inflammasome activation and pyroptosis in Ang-II treated renal tubular epithelial cells. METHODS: To study its role in RF, TRIM6 expression was either reduced or increased in human kidney-2 (HK2) cells using lentivirus, and Ang-II, NAC and BMS-986299 were served as reactive oxygen species (ROS) inducer, ROS scavenger and NLRP3 agonist respectively. Pyroptosis and mitochondrial ROS were measured by flow cytometry. The levels of malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) were determined using commercial kits, while the levels of IL-1ß, IL-18, IL-6, and tumor necrosis factor-α (TNF-α) were determined by Enzyme-Linked Immunosorbent Assay (ELISA). Co-immunoprecipitation (Co-IP) assay was used to evaluate the interaction between TRIM6 and GPX3. Reverse transcription-polymerase chain reaction (RT-PCR) and western blot were used to measure mRNA and protein expression, respectively. RESULTS: Treatment with Angiotensin II (Ang II) increased the protein and mRNA levels of TRIM6 in HK2 cells. Ang II also increased mitochondrial ROS production and the malondialdehyde (MDA) level, but decreased the levels of GSH and SOD. In addition, Ang II enhanced HK2 cell pyroptosis, increased the levels of IL-1ß, IL-18, IL-6, and TNF-α, and promoted the expression of active IL-1ß, NLRP3, caspase-1, and GSDMD-N proteins. These effects were reversed by knockdown of TRIM6 and by treatment with N-acetyl-L-cysteine (NAC), a ROS scavenger. BMS-986299, an NLRP3 agonist treatment, did not affect ROS production in HK2 cells exposed to Ang II combined with NAC, but cell pyroptosis and inflammation were aggravated. Moreover, the overexpression of TRIM6 in HK2 cells resulted in similar effects to Ang II. NAC and GPX3 overexpression in HK2 cells could reverse ROS production, inflammation, and pyroptosis induced by TRIM6 overexpression. TRIM6 overexpression decreased the GPX3 protein level by promoting its ubiquitination, without affecting the GPX3 mRNA level. Thus, TRIM6 facilitates GPX3 ubiquitination, contributing to increased ROS levels and pyroptosis in HK2 cells. CONCLUSIONS: TRIM6 increases oxidative stress and promotes the pyroptosis of HK2 cells by regulating GPX3 ubiquitination. These findings could contribute to the development of novel drugs for the treatment of RF.


Assuntos
Inflamassomos , Proteína 3 que Contém Domínio de Pirina da Família NLR , Proteínas com Motivo Tripartido , Ubiquitina-Proteína Ligases , Humanos , Inflamassomos/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/genética , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Interleucina-18/metabolismo , Interleucina-18/farmacologia , Piroptose , Interleucina-6/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Transdução de Sinais , Inflamação , Acetilcisteína/metabolismo , Acetilcisteína/farmacologia , Superóxido Dismutase/metabolismo , Células Epiteliais/metabolismo , Glutationa Peroxidase/metabolismo , Glutationa Peroxidase/farmacologia , Ubiquitinação , Malondialdeído/metabolismo , RNA Mensageiro/metabolismo
13.
Artigo em Inglês | MEDLINE | ID: mdl-38173060

RESUMO

BACKGROUND: Poorly differentiated thyroid cancer (PDTC) is a special type of thyroid cancer that threatens the life of the patients. Unfortunately, there are no effective treatments for PDTC right now, so it is urgent to search for new efficacious drugs. This experiment was designed to elucidate the effects of selenomethionine (SeMet) on PDTC in vitro and vivo. METHODS: A xenograft animal model was used to assay the volume and weight of PDTC. LncRNA NOMMMUT014201 expression was detected by fluorescence in situ hybridization and Real-time quantitative PCR (qRT-PCR). In vitro experiments were carried on in WRO cells. The Cell Counting Kit-8 assay was performed to test the effect of SeMet on the proliferation of cells. And the migration and invasion of WRO cells by the wound-healing assay, Transwell migration and invasion assays. The cell apoptosis was measured by flow cytometry. In addition, genes related to proliferation, migration, invasion and apoptosis were detected through qRT-PCR and Western Blot. RESULTS: SeMet inhibited the proliferation, migration and invasion and promoted the apoptosis of WRO cells in a dose-dependent manner. Then vivo, SeMet significantly suppressed the volume and weight of PDTC. And SeMet downregulated the expressions of Ki67, PCNA, MMP2, MMP9 and BCL2, but upregulated that of BAX and Cleaved-Caspase 3. Moreover, SeMet upregulated the level of LncRNA NOMMMUT014201 both vivo and in vitro. In addition, repression of LncRNA NOMMMUT014201 removed the inhibition effect of SeMet on WRO cell growth significantly (p<0.05). Further investigation showed that LncRNA NOMMMUT014201 downregulated the expression of miR-6963-5p in PDTC cells, but miR-6963-5p inhibited the level of Srprb. In addition, sh-LncRNA NOMMMUT014201 enhanced the proliferation, migration and invasion but inhibited the apoptosis of WRO cells. However, inhibited miR-6963-5p or overexpressed Srprb relieved the effects of sh-LncRNA NOMMMUT014201on WRO cells. CONCLUSION: Collectively, SeMet inhibits the growth of PDTC in a dose-dependent manner through LncRNA NONMMUT014201/miR-6963-5p/Srprb signal pathway, thus suggesting that SeMet might be a potential drug for PDTC treatment.

14.
Diabetes Metab Syndr Obes ; 17: 55-73, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38192494

RESUMO

Purpose: Proximal tubular epithelial cell (PTEC) is vulnerable to injury in diabetic kidney disease (DKD) due to high energy expenditure. The injured PTECs-derived profibrotic factors are thought to be driving forces in tubulointerstitial fibrosis (TIF) as they activate surrounding fibroblasts. However, the mechanisms remain unclear. Methods: The diabetes with uninephrectomy (DKD) rats were used to evaluated renal histological changes and the expression of Claudin-2 by immunofluorescence staining. Then, Claudin-2 expression in PTECs were modulated and subsequently determined the proliferation and activation of fibroblasts by building a transwell co-culture system in normal glucose (NG)or high glucose (HG) condition. Results: Decreased expression of Claudin-2 in PTECs accompanied by tight junction disruption and increased interstitial fibrosis, were detected in DKD rats. In vitro, downregulated Claudin-2 in PTECs promoted proliferation and activation of fibroblasts, which coincided with elevated expression of profibrotic connective tissue growth factor (CTGF) in PTECs. Silenced CTGF inhibited the profibrotic of PTECs via Claudin-2 inhibition. Fibroblasts co-cultured with PTECs transitioned more to myofibroblasts and generated extracellular matrix (ECM) significantly in response to high glucose (HG) stimulation whereas overexpression of Claudin-2 in PTECs reversed the above results. Upregulating CTGF disrupted the beneficial anti-fibrosis effects obtained by overexpression of Claudin-2 in HG condition. Conclusion: Our study suggested that Claudin-2 in PTECs, a key mediator of paracellular cation and water transport, promotes the activation and proliferation of surrounding fibroblasts significantly via CTGF in a paracrine manner.

15.
Orphanet J Rare Dis ; 19(1): 29, 2024 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-38281003

RESUMO

AIM: Achondroplasia is the most common of the skeletal dysplasias that cause fatal and disabling growth and developmental disorders in children, and is caused by a mutation in the fibroblast growth factor receptor, type 3 gene(FGFR3). This study aims to analyse the clinical characteristics and gene mutations of ACH to accurately determine whether a patient has ACH and to raise public awareness of the disease. METHODS: The database of Pubmed, Cochrane Library, Wanfang and CNKI were searched with terms of "Achondroplasias" or "Skeleton-Skin-Brain Syndrome" or "Skeleton Skin Brain Syndrome" or "ACH" and "Receptor, Fibroblast Growth Factor, Type 3" or "FGFR3". RESULTS: Finally, four hundred and sixty-seven patients with different FGFR3 mutations were enrolled. Of the 138 patients with available gender information, 55(55/138, 40%) were female and 83(83/138, 60%) were male. Among the patients with available family history, 47(47/385, 12%) had a family history and 338(338/385, 88%) patients were sporadic. The age of the patients ranged from newborn babies to 36 years old. The mean age of their fathers was 37 ± 7 years (range 31-53 years). Patients came from 12 countries and 2 continents, with the majority being Asian (383/432, 89%), followed by European (49/432, 11%). Short stature with shortened arms and legs was found in 112(112/112) patients, the abnormalities of macrocephaly in 94(94/112) patients, frontal bossing in 89(89/112) patients, genu valgum in 64(64/112) patients and trident hand were found in 51(51/112) patients. The most common mutation was p.Gly380Arg of the FGFR3 gene, which contained two different base changes, c.1138G > A and c.1138G > C. Ten rare pathogenic mutations were found, including c.831A > C, c.1031C > G, c.1043C > G, c.375G > T, c.1133A > G, c.1130T > G, c.833A > G, c.649A > T, c.1180A > T and c.970_971insTCTCCT. CONCLUSION: ACH was caused by FGFR3 gene mutation, and c.1138G > A was the most common mutation type. This study demonstrates the feasibility of molecular genetic testing for the early detection of ACH in adolescents with short stature, trident hand, frontal bossing, macrocephaly and genu valgum.


Assuntos
Acondroplasia , Geno Valgo , Megalencefalia , Osteocondrodisplasias , Criança , Recém-Nascido , Adolescente , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Acondroplasia/genética , Acondroplasia/patologia , Mutação/genética
17.
Nat Commun ; 14(1): 8289, 2023 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-38092790

RESUMO

Mazdutide is a once-weekly glucagon-like peptide-1 (GLP-1) and glucagon receptor dual agonist. We evaluated the efficacy and safety of 24-week treatment of mazdutide up to 6 mg in Chinese overweight adults or adults with obesity, as an interim analysis of a randomised, two-part (low doses up to 6 mg and high dose of 9 mg), double-blind, placebo-controlled phase 2 trial (ClinicalTrials.gov, NCT04904913). Overweight adults (body-mass index [BMI] ≥24 kg/m2) accompanied by hyperphagia and/or at least one obesity-related comorbidity or adults with obesity (BMI ≥ 28 kg/m2) were randomly assigned (3:1:3:1:3:1) to once-weekly mazdutide 3 mg, 4.5 mg, 6 mg or matching placebo at 20 hospitals in China. The primary endpoint was the percentage change from baseline to week 24 in body weight. A total of 248 participants were randomised to mazdutide 3 mg (n = 62), 4.5 mg (n = 63), 6 mg (n = 61) or placebo (n = 62). The mean percentage changes from baseline to week 24 in body weight were -6.7% (SE 0.7) with mazdutide 3 mg, -10.4% (0.7) with 4.5 mg, -11.3% (0.7) with 6 mg and 1.0% (0.7) with placebo, with treatment difference versus placebo ranging from -7.7% to -12.3% (all p < 0.0001). All mazdutide doses were well tolerated and the most common adverse events included diarrhoea, nausea and upper respiratory tract infection. In summary, in Chinese overweight adults or adults with obesity, 24-week treatment with mazdutide up to 6 mg was safe and led to robust and clinically meaningful body weight reduction.


Assuntos
Diabetes Mellitus Tipo 2 , Sobrepeso , Adulto , Humanos , Sobrepeso/complicações , Sobrepeso/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Obesidade/complicações , Obesidade/tratamento farmacológico , Obesidade/induzido quimicamente , Peso Corporal , Peptídeo 1 Semelhante ao Glucagon/uso terapêutico , Método Duplo-Cego , Resultado do Tratamento
18.
Nat Prod Res ; : 1-7, 2023 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-38143317

RESUMO

Three undescribed compounds, 1-(4-hydroxyphenyl)-3-((4-hydroxyphenyl)thio) -2-propanone (I), 4'-hydroxybenzyl 4-(4''- hydroxybenzyloxy) benzyl thioether (II) and 3-(4'-hydroxybenzyl)-6-hydroxy-quinazolinone (III) were isolated from the seeds of Sinapis alba L. The structures of all compounds were elucidated based on NMR and MS analysis, along with the comparison with published data. The potential targets of compounds I-III were identified by virtual screening. The potential inhibitory effects of these compounds on protein kinase C theta type were compared by molecular docking. The docking score of compound III was the highest.

19.
Endocrine ; 2023 Dec 22.
Artigo em Inglês | MEDLINE | ID: mdl-38129723

RESUMO

OBJECTIVE: The primary objective was to establish a radiomics model utilizing longitudinal +cross-sectional ultrasound (US) images of lymph nodes (LNs) to predict cervical lymph node metastasis (CLNM) following differentiated thyroid carcinoma (DTC) surgery. METHODS: A retrospective collection of 211 LNs from 211 postoperative DTC patients who underwent neck US with suspicious LN fine needle aspiration cytopathology findings at our institution was conducted between June 2021 and April 2023. Conventional US and clinicopathological information of patients were gathered. Based on the pathological results, patients were categorized into CLNM and non-CLNM groups. The database was randomly divided into a training cohort (n = 147) and a test cohort (n = 64) at a 7:3 ratio. The least absolute shrinkage and selection operator algorithm was applied to screen the most relevant radiomic features from the longitudinal + cross-sectional US images, and a radiomics model was constructed. Univariate and multivariate analyses were used to assess US and clinicopathological significance features. Subsequently, a combined model for predicting CLNM was constructed by integrating radiomics, conventional US, and clinicopathological features and presented as a nomogram. RESULTS: The area under the curves (AUCs) of the longitudinal + cross-sectional radiomics models were 0.846 and 0.801 in the training and test sets, respectively, outperforming the single longitudinal and cross-sectional models (p < 0.05). In the testing cohort, the AUC of the combined model in predicting CLNM was 0.901, surpassing that of the single US model (AUC, 0.731) and radiomics model (AUC, 0.801). CONCLUSIONS: The US-based radiomics model exhibits the potential to accurately predict CLNM following DTC surgery, thereby enhancing diagnostic accuracy.

20.
PLoS One ; 18(11): e0287485, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37910573

RESUMO

BACKGROUND: The association between the total bilirubin/albumin (B/A) and the all-cause mortality of critically ill patients with acute kidney injury (AKI) remains unclear. This retrospective study aimed to investigate the relationship between B/A ratio and mortality in patients with AKI. METHODS: The clinical data of AKI patients in the Medical Information Mart for Intensive Care III (MIMIC-III) database were retrospectively analyzed. Patients were divided into the low and high B/A groups (B/A ≤ 0.25 and B/A > 0.25, respectively). The primary outcome was 28-day all-cause mortality, and the secondary outcomes were 60-day, 1-year and 4-year all-cause mortality. Kaplan-Meier survival curves and Cox proportional risk models were constructed to evaluate the effect of B/A on survival outcomes. RESULTS: The 28-day mortality rates were 18.00% and 25.10% in the low and high B/A groups, respectively (P < 0.001). The Kaplan-Meier analysis showed that patients with higher B/A values had higher all-cause mortality risk (log-rank P < 0.0001). The multivariate Cox proportional risk analysis showed that B/A was an independent risk predictor for death at 28 days, 60 days, 1 year, and 4 years. CONCLUSION: B/A is an independent risk factor for increased mortality in patients with AKI and may be used as a predictor of clinical outcomes in AKI.


Assuntos
Injúria Renal Aguda , Cuidados Críticos , Humanos , Estudos Retrospectivos , Prognóstico , Modelos de Riscos Proporcionais , Injúria Renal Aguda/etiologia , Estado Terminal
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...