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1.
J Intensive Care Med ; : 8850666241232888, 2024 Feb 25.
Artículo en Inglés | MEDLINE | ID: mdl-38404127

RESUMEN

BACKGROUND: Severe infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or influenza virus can cause patients to be admitted to intensive care units (ICUs). It is necessary to understand the differences in clinical characteristics and outcomes between these two types of critically ill patients. METHODS: We searched Embase, PubMed, and Web of Science for articles and performed a meta-analysis using Stata 14.0 with a random-effects model. This paper was written in strict accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS: Thirty-five articles involving 131,692 ICU patients with coronavirus disease 2019 (COVID-19) and 30,286 ICU patients with influenza were included in our meta-analysis. Compared with influenza patients, COVID-19 patients were more likely to be male (odds ratio (OR) = 1.75, 95% CI: 1.54-1.99) and older (standardized mean difference (SMD) = 0.16, 95% CI: 0.03-0.29). In terms of laboratory test results, COVID-19 patients had higher lymphocyte (SMD = 0.38, 95% CI: 0.17-0.59) and platelet counts (SMD = 0.52, 95% CI: 0.29-0.75) but lower creatinine (SMD = -0.29, 95% CI: -0.55-0.03) and procalcitonin levels (SMD = -0.78, 95% CI: -1.11-0.46). Diabetes (SMD = 1.27, 95% CI: 1.08-1.48) and hypertension (SMD = 1.30, 95% CI: 1.05-1.60) were more prevalent in COVID-19 patients, while influenza patients were more likely to have cancer (OR = 0.52, 95% CI: 0.44-0.62), cirrhosis (OR = 0.52, 95% CI: 0.44-0.62), immunodepression (OR = 0.38, 95% CI: 0.25-0.58), and chronic pulmonary diseases (OR = 0.35, 95% CI: 0.24-0.52). We also found that patients with COVID-19 had longer ICU stays (SMD = 0.20, 95% CI: 0.05-0.34), were more likely to develop acute respiratory distress syndrome (OR = 4.90, 95% CI: 2.77-8.64), and had higher mortality (OR = 1.35, 95% CI: 1.17-1.55). CONCLUSIONS: There are some differences in the basic characteristics, comorbidities, laboratory test results and complications between ICU patients with COVID-19 and ICU patients with influenza. Critically ill patients with COVID-19 often require more medical resources and have worse clinical outcomes. PROSPERO Registration Number: CRD42023452238.

2.
World J Gastrointest Surg ; 15(11): 2564-2578, 2023 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-38111771

RESUMEN

BACKGROUND: Gallbladder and biliary diseases (GABDs) are a major public health issue. AIM: To analysis the cause-specific incidence, prevalence, and years lived with disability (YLDs) and its temporal trends of GABDs at the global, regional, and national level. Data on GABD were available from the Global Burden of Disease study 2019. METHODS: The estimated annual percentage change (EAPC) was used to quantify temporal trend in GABD age-standardized incidence rates (ASIRs), age-standardized prevalence rate (ASPR), and age-standardized YLD rate (ASYR) by region, sex. We analyzed the relationship between the GABD burden and country development level using the human development index (HDI). RESULTS: In 2019, the incident cases of GABD were 52003772, with an ASIR of 63432/100000 population. Globally, the number of incident cases and ASIR of GABD increased 97% and 58.9% between 1990 and 2019. Although, the ASPR and ASYR decreased from 1990 to 2019, the number of prevalent and YLDs cases increased. The highest ASIR was observed in Italy, and the highest ASPR and ASYR was observed in United Kingdom. The highest burden of GABD was found in low-SDI region, and the burden in female was significantly higher than males. A generally negative correlation (ρ = -0.24, P < 0.05) of GABD with the EAPC and human development index (HDI) (in 2021) were observed for ASIR. What's more, no correlation in ASPR (ρ = -0.06, P = 0.39) and ASYR (ρ = -0.07, P = 0.36) of GABD with the EAPC and HDI (in 2021) were observed, respectively. CONCLUSION: GABD remain a major global public health challenge; however, the burden of GABD varies geographically. Globally, the number of incident cases and ASIR of GABD increased between 1990 and 2019. The results of our study provide insight into the global disease burden of GABD and may assist policymakers in formulating effective policies to mitigate modifiable risk factors.

3.
BMC Pulm Med ; 23(1): 398, 2023 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-37858100

RESUMEN

BACKGROUND: Coronavirus disease 2019 (COVID-19) has posed increasing challenges to global health systems. We aimed to understand the effects of pulmonary air leak (PAL), including pneumothorax, pneumomediastinum and subcutaneous emphysema, on patients with COVID-19. METHODS: We searched PubMed, Embase and Web of Science for data and performed a meta-analysis with a random-effects model using Stata 14.0. This meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS: Thirty-five articles were included in the meta-analysis. The data came from 14 countries and included 3,047 COVID-19 patients with PAL, 11,3679 COVID-19 patients without PAL and 361 non-COVID-19 patients with PAL. We found that the incidence of PAL was much higher in COVID-19 patients than in non-COVID-19 patients (odds ratio (OR) = 6.13, 95% CI: 2.09-18.00). We found that the group of COVID-19 patients with PAL had a longer hospital stay (standardized mean difference (SMD) = 0.79, 95% CI: 0.27-1.30) and intensive care unit (ICU) stay (SMD = 0.51, 95% CI: 0.19-0.83) and comprised more ICU (OR = 15.16, 95% CI: 6.51-35.29) and mechanical ventilation patients (OR = 5.52, 95% CI: 1.69-17.99); furthermore, the mortality rate was also higher (OR = 2.62, 95% CI: 1.80-3.82). CONCLUSIONS: Patients with lung injuries caused by COVID-19 may develop PAL. COVID-19 patients with PAL require more medical resources, have more serious conditions and have worse clinical outcomes. PROSPERO REGISTRATION NUMBER: CRD42022365047.


Asunto(s)
COVID-19 , Neumotórax , Humanos , COVID-19/epidemiología , Tiempo de Internación , Neumotórax/epidemiología , Neumotórax/etiología
4.
Foot Ankle Int ; 44(10): 1034-1043, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37772832

RESUMEN

BACKGROUND: To propose and validate a modified noninvasive method for the diagnosis of chronic syndesmotic injuries. METHODS: This study included 16 patients with chronic ankle instability. Herein, we propose the Modified Stabilization Test, a new measurement for use in the diagnosis of chronic syndesmotic injury, as determined by wearing a 60-kPa pneumatic brace. The test combines the center of pressure and sensory organization test to measure postural control. For comparison, we also measured the tibiofibular clear space, tibiofibular overlap, and medial clear space using anteroposterior radiograph; a line marked horizontally above the tibial plaque using computed tomography (CT) to measure the syndesmotic gap and fibular rotation angle; and magnetic resonance imaging (MRI) scans to determine the presence of the λ sign. The distance of syndesmosis was confirmed in 16 individuals through arthroscopy, and the results of the examination were used to determine the diagnostic efficacy of each index. RESULTS: Receiver operating characteristic curve analysis revealed that the optimal cut-off value, sensitivity, and specificity of the Modified Stabilization Test for the diagnosis of chronic syndesmotic injuries were 0.80, 100%, and 87.5%, respectively. The area under the curve (AUC) of the Modified Stabilization Test was 0.906 (95% CI 0.656, 0.993; P < .001), which was superior to imaging indices such as radiography, CT, and MRI (AUC = 0.516-0.891). CONCLUSION: We developed the Modified Stabilization Test-a noninvasive diagnostic tool for the screening of chronic syndesmotic injuries. The test showed high sensitivity and specificity for the identification of chronic syndesmotic injuries and is helpful in the identification of chronic syndesmotic injuries. LEVEL OF EVIDENCE: Level II, diagnostic-investigating a diagnostic test.


Asunto(s)
Traumatismos del Tobillo , Humanos , Traumatismos del Tobillo/diagnóstico por imagen , Radiografía , Imagen por Resonancia Magnética/métodos , Tomografía Computarizada por Rayos X , Equilibrio Postural , Articulación del Tobillo
5.
J Orthop Surg (Hong Kong) ; 30(2): 10225536221095276, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35775586

RESUMEN

BACKGROUND: It is unclear whether muscle atrophy (MA) and fatty degeneration (FD) have improved after arthroscopic rotator cuff repair (ARCR). Therefore, the objective of this study was to perform quantitative magnetic resonance imaging (MRI) measurement to evaluate MA and FD before and after surgery. Correlations of clinical outcome with changes in MA and FD were also analyzed. MATERIALS AND METHODS: From March 2013 to March 2017, 40 patients who had no re-tear up to 1 year after ARCR were enrolled. MA and FD of supraspinatus muscle before surgery, at 3 days after surgery, and at 1 year after surgery were measured quantitatively in conventional Y-view and supraspinatus origin-view (SOV). Measurement items were muscle area (mm2), occupation ratio (%), fatty infiltration (FI, %), and fatty degenerative area (mm2). Postoperative clinical outcomes were measured at 1 year after ARCR. Correlation between measure values and outcome scores were analyzed. RESULTS: Inter-measurement reliability was high (ICC = 0.933, Cronbach-α = 0.963). There was no significant change in MA in conventional Y-view at 1 year after surgery (Occupation ratio, p = 0.2770; MA, p = 0.3049) or in SOV (MA, p = 0.5953). FI and fat area measured with the conventional method on Y-view and showed significant differences (p = 0.0001). However, FI and fat area measured with the modified method on Y-view and SOV showed no significant difference (all p > 0.05). Postoperative clinical outcomes showed significant improvement compared to preoperative ones (p = 0.0001). However, there was no significant correlation between FD and FA (p = 0.653). CONCLUSION: Quantitative MRI measurement was shown to be a reliable and valid method. MA and FD do not improve after ARCR considering postoperative anatomical changes of supraspinatus at 1-year follow-up. FD of the supraspinatus in conventional Y-view, but not in SOV, showed a significant change at 1 year postoperatively. MA showed no significant improvement. There was no correlation between improvement in clinical scores and changes in FD and MA.


Asunto(s)
Atrofia Muscular , Manguito de los Rotadores , Humanos , Imagen por Resonancia Magnética , Atrofia Muscular/diagnóstico por imagen , Atrofia Muscular/etiología , Periodo Posoperatorio , Reproducibilidad de los Resultados , Manguito de los Rotadores/diagnóstico por imagen , Manguito de los Rotadores/cirugía
6.
Front Bioeng Biotechnol ; 10: 916334, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35669056

RESUMEN

Background: The current study investigated the application of three-dimensional (3D) printing technology in the treatment of talar avascular necrosis (TAN). Custom-made Vitallium talar prostheses were designed and generated via 3D printing. We hypothesized that these talar prostheses would facilitate more stable positioning, better ergonomically fit the ankle joint surfaces, and promote favorable long-term prognoses. Material and Methods: Computed tomography scans of both ankle joints were acquired from three patients diagnosed with TAN. The talar on the unaffected side was used as the design blueprint. Hence, with the aid of 3D printing technology a customized talar prosthesis made from a novel Vitallium alloy could be manufactured for each individual patient. Results: In all three cases there were no signs of prosthesis loosening or substantial degenerative change in the surrounding area of the joint, but small osteophytes were observed on the tibial side and navicular side. No chronic infection or other prosthesis-related complications were observed in any of the patients. All three were able to walk without pain at the most recent follow-up. Conclusion: With the aid of 3D printing and a novel Vitallium alloy, total talar replacement achieved encouraging results in 3/3 patients. All patients were satisfied with their joint function, and were able to return to their daily activities without limitations. Although more cases and longer-term follow-up periods are required, the success rate reported herein is encouraging.

9.
Medicine (Baltimore) ; 99(43): e22779, 2020 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-33120789

RESUMEN

This study aimed to measure temporomandibular joint (TMJ) with 3-dimensional (3D) reconstruction technique in Chinese northeast population, and to clarify the region for fixation and to provide morphological basis for the application of TMJ prosthesis in Chinese setting.Computed tomography (CT) scan and 3D reconstruction were performed with 132 individuals. Structural markers and measurements were further performed with a 3D model of the total TMJ, including the width, thickness and angle of zygomatic arch, the width and height of articular fossa, as well as the area, width, thickness and angle of mandible in the fixation region of the TMJ prosthesis. All the measured indicators values were compared between bilateral sides and gender groups.There was no statistical difference in the measured indicators between the left side and the right side (P > .05). However, certain parameters, including S, L5, L7, P4, and P5, were significantly different among males and females (P < .05).In this study, 3D CT image was used to obtain the measurement data of TMJ, which provided data support for the clinical application of TMJ prosthesis in Chinese population.


Asunto(s)
Imagenología Tridimensional/métodos , Mandíbula/diagnóstico por imagen , Articulación Temporomandibular/diagnóstico por imagen , Adulto , Anciano , Femenino , Humanos , Prótesis Articulares , Masculino , Mandíbula/cirugía , Reconstrucción Mandibular/métodos , Persona de Mediana Edad , Factores Sexuales , Articulación Temporomandibular/cirugía , Adulto Joven
10.
Medicine (Baltimore) ; 99(39): e22330, 2020 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-32991444

RESUMEN

RATIONALE: Widely applied in the treatment of severe ankle arthritis (AA), ankle distraction arthroplasty (ADA) can avoid not only the ankle range of motion loss but also ankle fusion. However, the clinical outcomes of ADA for severe AA are poorly understood. This study aims to present our clinical outcomes of severe AA treated by ADA. PATIENT CONCERNS: A 53-year-old man suffered right ankle sprain 10 years ago, endured right ankle pain and limited movement for 6 years. DIAGNOSIS: The patient was diagnosed as severe AA. INTERVENTIONS: He received ankle distraction arthroplasty. No adjuvant procedures were performed. The visual analog scale (VAS), the American Orthopaedic Foot and Ankle Society (AOFAS) score, the short-form (SF)-36 physical component summary (PCS) score and ankle activity score (AAS) were recorded to access the clinical outcomes pre- and postoperatively. Moreover, ankle joint space distance was evaluated on weight-bearing radiographs. OUTCOMES: The patient derived effective pain relief and restored a satisfactory range of movement. There was a 13-month follow-up period after frame removal. The AOFAS score improved from 56 preoperatively to 71 postoperatively. The VAS score decreased from 6 prior to surgery to 1 after surgery. The SF-36 PCS was 47.2 and 71.8 pre- and postoperative, respectively. The AAS scores were improved from 3.4 preoperatively to 7.3 postoperatively. LESSONS: ADA is reliable to achieve pain relief, functional recovery, and serve AA resolution. Besides, it is an alternative to ankle arthrodesis or total ankle arthroplasty in selected patients with severe AA.


Asunto(s)
Traumatismos del Tobillo/complicaciones , Articulación del Tobillo/patología , Artritis/cirugía , Osteogénesis por Distracción/efectos adversos , Cuidados Posteriores , Traumatismos del Tobillo/fisiopatología , Articulación del Tobillo/diagnóstico por imagen , Artroplastia/métodos , Humanos , Masculino , Persona de Mediana Edad , Osteogénesis por Distracción/instrumentación , Radiografía/métodos , Rango del Movimiento Articular , Recuperación de la Función , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Escala Visual Analógica , Soporte de Peso
11.
Medicine (Baltimore) ; 99(32): e21679, 2020 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-32769937

RESUMEN

BACKGROUND: Syndesmotic injuries account for a significant number of ankle injuries. There is no consensus regarding the recommended method of treatment. The purpose of this study was to evaluate: METHODS:: This study was performed and reported in accordance with the Strengthening the Reporting of Observational studies in Epidemiology checklist. The records of 200 patients with ankle fractures who had undergone surgical treatment in our clinics between January 2014 and January 2018 were retrospectively investigated. This retrospective cohort study was approved by the institutional review board in the 2nd Hospital of Jilin University. The primary outcome measure was the American Orthopaedic Foot and Ankle Society ankle-hindfoot scale and the Foot Function Index. Secondary outcome measures included visual analog scale score, complications, range of movement of ankle, reoperations, and radiologic outcomes. For statistical comparison of the clinical and radiologic findings between the 2 groups, we used SPSS, version 21.0 (SPSS, Chicago, IL), statistical software. P Values of < .05 were considered statistically significant. CONCLUSION: The hypothesis was that the SB technique would achieve better functional outcomes as compared to the syndesmotic screw technique after surgery. TRIAL REGISTRATION: This study protocol was registered in Research Registry (researchregistry5793).


Asunto(s)
Articulación del Tobillo/cirugía , Procedimientos Ortopédicos/instrumentación , Procedimientos Ortopédicos/normas , Adulto , Anciano , Traumatismos del Tobillo/diagnóstico por imagen , Traumatismos del Tobillo/cirugía , Articulación del Tobillo/anomalías , Articulación del Tobillo/diagnóstico por imagen , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Inmovilización/instrumentación , Inmovilización/métodos , Masculino , Persona de Mediana Edad , Procedimientos Ortopédicos/estadística & datos numéricos , Estudios Retrospectivos , Estadísticas no Paramétricas , Resultado del Tratamiento
12.
Int Immunopharmacol ; 76: 105878, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31513985

RESUMEN

Parkinson's disease is normally accompanied by excessive inflammation. Myocardial infraction associated transcript 2 (Mirt2) has an activity to relieve inflammation in numerous cell types. Here, we aimed to investigate whether Mirt2 could elevate the resistance of SH-Sy5y cells to inflammation. Tumor necrosis factor alpha (TNF-α) was used to induce inflammation in SH-Sy5y cells. Mirt2 overexpressed or silenced cells were established. MicroRNA-101 (miR-101) mimic was used to up-regulate miR-101. Viable and apoptotic cells as well as reactive oxidative species (ROS) were detected after staining. Proteins associated with apoptosis, interleukin (IL) and signaling regulators were evaluated by Western blot. IL secretion was assessed by ELISA. Mirt2 and miR-101 were determined by qRT-PCR. We discovered that TNF-α weakened viability of SH-Sy5y cells and resulted in sensitivity to apoptosis with cleavage of PARP and caspase-3. Expression and secretion of IL-6 as well as generation of ROS were facilitated by TNF-α. However, Mirt2 overexpression moderated TNF-α-caused apoptosis associated with inflammation and oxidative stress. Mirt2 suppressed TNF-α-induced accumulation of miR-101, and based on this Mirt2 exhibited anti-inflammatory roles. Additionally, TNF-α-triggered phosphorylation of regulators was blocked by Mirt2 while restored by miR-101 mimic. In short Mirt2 overexpression exhibited anti-inflammatory properties through miR-101 suppression. Through down-regulating miR-101, Mirt2 blocked TNF-α-triggered NF-κB/p38MAPK pathway.


Asunto(s)
MicroARNs , ARN Largo no Codificante , Apoptosis , Línea Celular Tumoral , Humanos , Inflamación/genética , Inflamación/metabolismo , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Estrés Oxidativo , Factor de Necrosis Tumoral alfa/farmacología
13.
J Chin Med Assoc ; 79(9): 500-6, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27236369

RESUMEN

BACKGROUND: Cervical disc prostheses have been used increasingly in recent years. The successful design of cervical disc prostheses depends on accurate morphometric parameters. However, the morphologic dimensions of the cervical endplate area have not been investigated in the Chinese population. METHODS: A total of 1360 cervical endplates and 680 pairs of uncinate processes was retrospectively accessed in 136 Chinese adults. Eleven parameters of each cervical vertebra were measured by three-dimensional computed tomography reconstructions from C3 to C7. These obtained parameters were compared between sexes, bilateral sides, vertebral segments, and different populations. RESULTS: Five parameters regarding the cervical endplate increased from C3 to C7 in general. Concerning parameters with regard to the uncinate process, the uncinate process distance gradually increased among vertebral segments, and anterior distance was always larger than the posterior distance. The value of left uncinate process angle was on average 0.84° larger than that of the right side, and lower cervical segments had an obviously larger angle. Uncinate process length increased among segments, and no significant difference existed between bilateral sides. Parameters displayed significant difference between sexes. The morphometric parameters of various populations also showed differences. CONCLUSION: There is a morphologic discrepancy in dimensions of cervical vertebrae regarding sexes, bilateral sides, vertebral segments, and different populations. It is essential to design cervical disc prostheses suited specifically for Chinese patients, for whom the morphometric parameters in our study concerning the cervical endplate and uncinate process can be utilized.


Asunto(s)
Vértebras Cervicales/anatomía & histología , Imagenología Tridimensional/métodos , Diseño de Prótesis , Tomografía Computarizada por Rayos X/métodos , Adulto , Vértebras Cervicales/diagnóstico por imagen , Vértebras Cervicales/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad
14.
World Neurosurg ; 91: 560-566.e1, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27032522

RESUMEN

BACKGROUND: The mid-arm structure named arcade of Struthers has been shrouded in controversy since it was identified. Most specimens in previous studies were European. The occurrence, component, extent, and position of this structure in the xanthoderm are not clear. Moreover, research into the arcade of Struthers has been at the anatomic level and there has been no ultrasonic research. The aim of this study was to elucidate and measure this anatomy by both anatomic dissection and ultrasonic observation to provide clear and definite criteria to classify the arcade of Struthers, as well as operation guidelines for identifying the arcade of Struthers in ultrasonic imaging and surgical decompression. METHODS: Sixty-four upper limb specimens of 32 adult cadavers were dissected. The tendinous arcade of Struthers (TAS) and muscular arcade of Struthers (MAS) were observed and measured, as well as the position at which the medial intermuscular septum was pierced by the ulnar nerve. The position at which the concomitant blood vessel began to accompany the ulnar nerve was also recorded. Twenty healthy adult participants were enrolled for ultrasonic research. The ulnar nerve was scanned from the cubital tunnel to the fossa axillaris for the anatomic structure crossing it. Once the arcade of Struthers was found, the distal and proximal limits were marked on the skin and it was then measured. RESULTS: Anatomic study showed TASs in 21 limbs, and MASs were found in 16 limbs. The total incidence of the arcade of Struthers was 57.8%. The length of TAS (2.12 ± 0.62 cm) and MAS (4.46 ± 1.96 cm) had a significant difference and the distance between its proximal limit and the medial humeral epicondyle were 8.93 ± 1.38 cm and 9.50 ± 1.69 cm, respectively. Ultrasonic study showed that the incidence of the arcade of Struthers was 50.0%. The distance between its proximal limit and the medial humeral epicondyle was 8.52 ± 1.88 cm and 9.45 ± 1.76 cm. The length was 1.85 ± 1.8 cm and 4.23 ± 1.93 cm, respectively. CONCLUSIONS: We believed that an arcade of Struthers described by multiple investigators did exist in Chinese people, and based on our study, it was classified into 2 types: TAS and MAS. Caution should be used to preserve the superior ulnar collateral artery when incising the arcade of Struthers. Ultrasonography can detect the existence ratio, dimension, and location of the arcade of Struthers.


Asunto(s)
Brazo/anatomía & histología , Adulto , Anciano , Brazo/diagnóstico por imagen , Cadáver , Femenino , Humanos , Masculino , Persona de Mediana Edad , Músculo Esquelético/anatomía & histología , Músculo Esquelético/diagnóstico por imagen , Arteria Cubital/anatomía & histología , Arteria Cubital/diagnóstico por imagen , Nervio Cubital/anatomía & histología , Nervio Cubital/irrigación sanguínea , Nervio Cubital/diagnóstico por imagen , Ultrasonografía
15.
Clin Exp Pharmacol Physiol ; 36(7): 631-6, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-19076162

RESUMEN

1. Angiotensin-converting enzyme inhibitors (ACEI) are hypotensive drugs that have been shown to prevent Type 2 diabetes mellitus (T2DM) in high-risk individuals. However, in T2DM, the effects of ACEI on hepatic steatosis are not known. The aim of the present study was to examine the effects of ACEI on changes in liver histology and hepatic mRNA expression of adipokines in rats with T2DM. 2. Thirty-six rats were divided into a normal control group, a T2DM group and a fosinopril-treated group. After six weeks of treatment with 5 mg/kg per day fosinopril, an ACEI, changes in liver histology, serum fasting glucose (FG), insulin, triglyceride (TG), total cholesterol (TC), alanine aminotransferase (ALT), aspartate aminotransferase (AST), tumour necrosis factor (TNF)-alpha, interleukin (IL)-6, adiponectin were evaluated, as was hepatic TNF-alpha, IL-6 and adiponectin receptor-2 (adipoR2) mRNA expression. 3. The degree of hepatic steatosis and inflammation, serum FG, insulin, TG, TC, ALT, TNF-alpha and IL-6 concentrations and hepatic TNF-alpha and IL-6 mRNA expression were significantly higher in rats with T2DM than in normal controls. Serum adiponectin concentrations and hepatic adipoR2 mRNA expression in rats with T2DM were significantly lower than in normal controls. Fosinopril significantly reduced the degree of hepatic steatosis, serum FG, insulin, ALT, TNF-alpha and IL-6 concentrations and hepatic TNF-alpha and IL-6 mRNA expression. Fosinopril significantly increased serum adiponectin concentrations and hepatic adipoR2 mRNA expression. 4. In conclusion, the ACEI improved insulin sensitivity and hepatic steatosis in rats with T2DM by increasing circulating adiponectin and hepatic adipoR2 levels, in addition to reducing pro-inflammatory cytokine levels in the circulation and liver.


Asunto(s)
Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Diabetes Mellitus Tipo 2/metabolismo , Hígado Graso/metabolismo , Interleucina-6/metabolismo , Receptores de Adiponectina/metabolismo , Factor de Necrosis Tumoral alfa/metabolismo , Inhibidores de la Enzima Convertidora de Angiotensina/farmacología , Animales , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Hígado Graso/tratamiento farmacológico , Hígado Graso/etiología , Regulación de la Expresión Génica/efectos de los fármacos , Regulación de la Expresión Génica/fisiología , Interleucina-6/biosíntesis , Interleucina-6/genética , Masculino , Ratas , Ratas Wistar , Receptores de Adiponectina/biosíntesis , Receptores de Adiponectina/genética , Factor de Necrosis Tumoral alfa/biosíntesis , Factor de Necrosis Tumoral alfa/genética
16.
Yi Chuan Xue Bao ; 31(8): 836-41, 2004 Aug.
Artículo en Chino | MEDLINE | ID: mdl-15481540

RESUMEN

Transgenic lines (GC-1) carrying a senescence-inhibition cheimeric gene, IPT (isopentenyl transferase) gene, CBB23, a isogenic lines carrying Xa23 gene for resistance to bacterial blight, and Hexi15, a commercial cultivar showing high resistance to blast disease, were used as donors to pyramid IPT gene and Xa23 by marker-assisted selection (MAS). Seventeen BC1F1 plants pyramiding Xa23 gene and IPT genes were obtained from three multi-cross combinations. Then, the plants carrying Xa23 and IPT genes were crossed with parental lines of two-line hybrid rice, such as 9311, E32, Pei' ai 64S and W9834S. The progenies were backcrossed the acceptor parents. A total of 17 plants carrying Xa23 and IPT genes were detected by PCR, disease resistance identification and analysis of CTK contents of in the four combinations of "(9311///Hexi15/CBB23// GC-1) x 9311", "(E32///Hexi15/CBB23//GC-1) x E32", "(Pei'ai 64S///Hexi15/CBB23//GC-1) x Pei' ai 64S" and "(GC-1/CBB23//W9834S/Hexi15) x W9834S". These plants showed resistance to blast disease by inoculating test using 21 the lines of Pyricularia grisea from Northern China. Six plants of BC2F1 pyramiding Xa23 and IPT genes were further obtained in the combinations of "[(9311///Hexi15/CBB23//GC-1) x 9311] x 9311", "[(E32///Hexi15/CBB23//GC-1) x E32] x E32". After backcrossed and self-crossed 1 approximately 2nd, the plants pyramiding Xa23 and IPT genes can be used in the program of hybrid rice breeding.


Asunto(s)
Transferasas Alquil y Aril/genética , Genes de Plantas , Oryza/genética , Oryza/microbiología , Enfermedades de las Plantas/genética , Cruzamientos Genéticos
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