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1.
FASEB J ; 37(8): e23094, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37462513

RESUMEN

Little is known about the effect of the recently developed calcimimetic evocalcet (Evo) on parathyroid calcium-sensing receptor (CaSR) and vitamin D receptor (VDR) expression. We examined the effects of Evo and cinacalcet (Cina) on CaSR and VDR expression in 5/6 nephrectomized Sprague-Dawley rats fed a high-phosphorus diet for 4 weeks to develop secondary hyperparathyroidism (SHPT). These uremic rats were divided into 4 groups-baseline control (Nx4W) and groups with additional treatment with either the Vehicle, Evo, or Cina for 2 weeks; normal rats were used as normal controls (NC). Blood parameters and parathyroid tissue were analyzed. CaSR and VDR expression levels were determined using immunohistochemistry. The degree of kidney injury and hyperphosphatemia was similar in the uremic groups (Nx4W, Vehicle, Cina, and Evo). Serum parathyroid hormone levels were significantly higher in the Nx4W and Vehicle groups than in the NC group. This increase was significantly suppressed in the Cina and Evo groups compared with that in the Vehicle group. Serum calcium levels were significantly and equally lower in the Cina and Evo groups relative to those in the Vehicle group. CaSR expression was significantly lower in the Nx4W and Vehicle groups than in the NC group. This downregulation was of an equally lesser magnitude in the Cina and Evo groups. A similar trend was observed for VDR expression. These results indicate that Evo and Cina treatment can increase parathyroid CaSR and VDR expression in uremic rats with SHPT, which could provide better control of mineral and bone disorder markers.


Asunto(s)
Hiperparatiroidismo Secundario , Receptores de Calcitriol , Ratas , Animales , Receptores de Calcitriol/metabolismo , Receptores Sensibles al Calcio/metabolismo , Ratas Sprague-Dawley , Glándulas Paratiroides/metabolismo , Hiperparatiroidismo Secundario/tratamiento farmacológico , Hiperparatiroidismo Secundario/complicaciones , Hiperparatiroidismo Secundario/metabolismo , Hormona Paratiroidea/metabolismo , Cinacalcet/farmacología , Cinacalcet/metabolismo
2.
Int Heart J ; 65(1): 155-158, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38296570

RESUMEN

Unroofed coronary sinus syndrome is a rare congenital cardiac anomaly, involving some anatomical variations. Approximately 60% of patients with unroofed coronary sinus syndrome have a concomitant atrial septal defect, which is termed unroofed coronary sinus atrial septal defect (CSASD). The precise detection of these abnormalities has been usually difficult with conventional echocardiography, mostly due to its small and complex structures. Herein, we report a case with unroofed coronary sinus atrial septal defect, in which preoperative contrast-enhanced computed tomography (CT) was useful in the operative decision making. We successfully repaired the defective roof of the coronary sinus with a bovine patch, while eliminating the inter-atrial shunt. The patient's postoperative course was uneventful with no residual shunt.


Asunto(s)
Seno Coronario , Cardiopatías Congénitas , Defectos del Tabique Interatrial , Anciano , Humanos , Seno Coronario/diagnóstico por imagen , Seno Coronario/cirugía , Seno Coronario/anomalías , Ecocardiografía , Defectos del Tabique Interatrial/diagnóstico por imagen , Defectos del Tabique Interatrial/cirugía , Síndrome , Tomografía Computarizada por Rayos X
3.
Lab Invest ; 103(1): 100003, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36748187

RESUMEN

Fibroblast growth factor 23 (FGF23) is associated with cardiovascular disease in patients with chronic kidney disease; however, the mechanisms underlying the effect of FGF23 on cardiac function remain to be investigated. Herein, we studied the effect of continuous intravenous (CIV) FGF23 loading in a deoxycorticosterone acetate (DOCA)-salt mouse model with mild chronic kidney disease and hypertension as well as heart failure with a preserved ejection fraction. Wild-type male mice were randomly allocated to 4 groups: normal control, vehicle-treated DOCA-salt mice, FGF23-treated DOCA-salt mice, and FGF23- and calcitriol-treated DOCA-salt mice. The DOCA-salt mice received the agents via the CIV route for 10 days using an infusion minipump. DOCA-salt mice that received FGF23 showed a marked increase in the serum FGF23 level, and echocardiography in these mice revealed heart failure with a preserved ejection fraction. These mice also showed exacerbation of myocardial fibrosis, concomitant with an inverse and significant correlation with Cyp27b1 expression. Calcitriol treatment attenuated FGF23-induced cardiac fibrosis and improved diastolic function via inhibition of transforming growth factor-ß signaling. This effect was independent of the systemic and local levels of FGF23. These results suggest that CIV FGF23 loading exacerbates cardiac fibrosis and that locally abnormal vitamin D metabolism is involved in this mechanism. Calcitriol attenuates this exacerbation by mediating transforming growth factor-ß signaling independently of the FGF23 levels.


Asunto(s)
Acetato de Desoxicorticosterona , Insuficiencia Cardíaca , Hipertensión , Insuficiencia Renal Crónica , Animales , Masculino , Ratones , Presión Sanguínea , Calcitriol/farmacología , Acetato de Desoxicorticosterona/efectos adversos , Factor-23 de Crecimiento de Fibroblastos , Fibrosis , Hipertensión/inducido químicamente , Hipertensión/metabolismo , Factor de Crecimiento Transformador beta/metabolismo , Factores de Crecimiento Transformadores/efectos adversos
4.
Calcif Tissue Int ; 112(1): 34-44, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36287217

RESUMEN

There is limited evidence on the use of romosozumab (ROMO) in the treatment of osteoporosis in patients on hemodialysis (HD); thus, we aimed to investigate this topic. This prospective, observational, single-center cohort study included 13 prior osteoporosis treatment-naïve patients on HD with osteoporosis. They first received ROMO once monthly for 12 months (210 mg; subcutaneously once every month). Thereafter, they received denosumab (DENO) for an additional 12 months (60 mg; subcutaneously once every 6 months). We examined the incidence of new fractures; treatment safety; and temporal changes in the bone mineral density (BMD), bone metabolism markers, and vascular calcification. No new cases of fractures were noted. The median one-year percentage changes (from the baseline) in the BMDs at the lumbar spine (LS), total hip (TH), and femoral neck (FN) were + 9.0%, + 2.5%, and + 4.7%, respectively. These changes were maintained for 24 months. The corresponding relative changes from the baseline to 24 months thereafter were + 14.9%, + 5.4%, and + 6.5%, respectively. The percentage changes in TH BMD and FN BMD were negatively correlated with baseline BMD. Coronary artery and thoracic aorta calcification scores increased slightly from baseline to 12 months thereafter. However, fatal events (cardiovascular disease-associated and all-cause deaths) did not occur during ROMO treatment. Effectiveness of ROMO was better in patients who had severe osteoporosis with low TH BMD, low FN BMD, and high tartrate-resistant acid phosphatase 5b level at ROMO initiation.


Asunto(s)
Conservadores de la Densidad Ósea , Enfermedades Óseas Metabólicas , Fracturas Óseas , Osteoporosis Posmenopáusica , Osteoporosis , Humanos , Femenino , Denosumab/farmacología , Denosumab/uso terapéutico , Estudios Prospectivos , Estudios de Cohortes , Osteoporosis/tratamiento farmacológico , Osteoporosis/inducido químicamente , Densidad Ósea , Fracturas Óseas/epidemiología , Enfermedades Óseas Metabólicas/inducido químicamente , Diálisis Renal
5.
J Orthop Sci ; 28(1): 239-243, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34872820

RESUMEN

BACKGROUND: The factors for poor adherence to therapy in patients with postoperative fracture who are treated with low-intensity pulsed ultrasound remain unknown. Therefore, we designed a retrospective cohort study to determine the various factors for poorer adherence to therapy in patients with postoperative fracture who were treated with low-intensity pulsed ultrasound therapy. METHODS: We retrospectively analyzed the data of postoperative patients who underwent low-intensity pulsed ultrasound after fracture surgery from January 2010 to May 2019. The patients were categorized into two groups as follows: group G, including those with a good adherence rate (>72%), and group P, including those with a poor adherence rate (<72%). Factors, such as age, sex, how the rental cost of low-intensity pulsed ultrasound was paid (by the patients themselves or by the insurance company), living (alone or with someone), insurance claim item (fractures within 3 weeks after osteosynthesis or delayed or non-union fractures), low-intensity pulsed ultrasound device-type (earlier- or next-generation), duration of low-intensity pulsed ultrasound use, fracture site (upper or lower limb), frequency of hospital visits (regular or irregular), and employment status (employed/unemployed) were compared between groups G and P. RESULTS: In total, 96 patients (74 and 22 patients in groups G and P, respectively) who underwent low-intensity pulsed ultrasound were included in the study. Univariate analysis revealed that younger patients (P < 0.001) and patients who did not regularly visit the hospital (P = 0.024) were more likely to have poorer adherence to therapy. Multiple logistic regression analysis revealed that age was the only independent, pertinent factor for poorer adherence to therapy (odds ratio, 8.570; 95% confidence interval, 2.770-26.50; P < 0.001), with a cutoff value of 41 years. CONCLUSIONS: Younger age is a significant factor for poorer adherence in patients undergoing low-intensity pulsed ultrasound therapy.


Asunto(s)
Fracturas Óseas , Terapia por Ultrasonido , Humanos , Estudios Retrospectivos , Curación de Fractura , Terapia por Ultrasonido/efectos adversos , Fracturas Óseas/diagnóstico por imagen , Fracturas Óseas/terapia , Fracturas Óseas/etiología , Ondas Ultrasónicas
6.
J Orthop Sci ; 28(6): 1266-1273, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36550015

RESUMEN

BACKGROUND: This study compared the clinical results of fracture stems and conventional stems using the same glenoid component in reverse shoulder arthroplasty for proximal humerus fractures in the elderly. METHODS: This retrospective study included 35 patients who underwent Grammont-type reverse shoulder arthroplasty for proximal humerus fractures from 2014 to 2020. The average age at surgery was 79.2 (range, 65-92) years, with 33 female shoulders. Fracture types per Neer classification were 3-part fracture, 4-part fracture, in 13 and 22 shoulders, respectively. The final follow-up period was 35 (range, 24-81) months. The Constant score, American Shoulder and Elbow Surgeons score, shoulder range of motion, and healing of greater tuberosities at the final follow-up of AEQUALIS™ REVERSED (Conventional stem group: n = 15) and AEQUALIS™ REVERSED FX (Fractured stem group: n = 20) were retrospectively investigated. RESULTS: There were no statistically significant differences in age at surgery, sex, body mass index, fracture type, waiting time from injury to surgery, or preoperative general condition between the groups. The Constant and American Shoulder and Elbow Surgeons scores of the fractured stem group were significantly higher than those of the conventional stem group (P = 0.038 and P = 0.023, respectively). The anterior elevation and external rotation at the side of the fractured stem group also showed significantly higher values than those of the conventional stem group (fractured stem group vs. conventional stem group: anterior elevation 127° ± 25° vs. 105° ± 35°, P = 0.041; external rotation 28° ± 13° vs. 13° ± 12°, P = 0.015). The greater tuberosity healing rate was 46.7% (7/15) in the conventional stem group and 85.0% (17/20) in the fractured stem group (P=0.027). CONCLUSIONS: The findings suggest that use of a fracture-specific stem rather than a conventional stem in Grammont-type reverse shoulder arthroplasty for proximal humerus fractures improves tuberosity healing, postoperative range of motion, and clinical scores.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Fracturas del Húmero , Fracturas del Hombro , Articulación del Hombro , Humanos , Femenino , Anciano , Anciano de 80 o más Años , Hombro , Estudios Retrospectivos , Artroplastía de Reemplazo de Hombro/métodos , Fracturas del Hombro/diagnóstico por imagen , Fracturas del Hombro/cirugía , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía , Húmero/cirugía , Fracturas del Húmero/cirugía , Resultado del Tratamiento , Rango del Movimiento Articular
7.
J Orthop Sci ; 2023 Nov 24.
Artículo en Inglés | MEDLINE | ID: mdl-38007298

RESUMEN

BACKGROUND: This study aimed to morphologically and histologically examine whether pig is useful as models for rotator cuff tear (RCT). METHODS: The morphology of the scapula and humerus bones was evaluated by taking X-ray and three-dimensional computed tomography (3D CT) scans of the right shoulders of five female pigs (age: 4 months). The rotator cuff (RC) footprint at the humeral insertion of these was observed and its shape was measured. Next, they underwent general anesthesia and an acute rotator cuff tear/rotator cuff repair (RCT/RCR) model was created using a deltoid split approach. Four weeks after surgery, the animals were euthanized, the shoulder joints were harvested, and the repaired RC was evaluated by hematoxylin and eosin staining and toluidine blue staining. RESULTS: The scapula of the pig had a vestigial acromion, in contrast to that in humans. The supraspinatus and infraspinatus tendons were connected so as to overlap each other and attached to the postero-superior part of the greater tuberosity. These tendons were located extra-articularly, separate from the joint capsule. The average antero-posterior length of the foot print was 17.4 ± 0.7 mm on the medial margin and 19.1 ± 2.2 mm on the lateral margin. The maximum medial-to-lateral width of it was 5.1 ± 0.5 mm. In all RCT/RCR models at 4 weeks after surgery, the repaired RC compound tendon was visually confirmed to be continuous with the footprint. Histologically, it was confirmed that regeneration of the four-layer structure of the bone-tendon junction had occurred. CONCLUSION: Porcine supraspinatus and infraspinatus attachment to the greater tuberosity have a structure similar to that of sheep and dogs, which is advantageous for creating the RCT/RCR model. It might be used for future in vivo studies of shoulder joint diseases. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: Pigs could potentially serve as a viable model for rotator cuff tears.

8.
J Orthop Sci ; 27(6): 1309-1314, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34579991

RESUMEN

BACKGROUND: Limited reports have examined the outcomes and complications of minimally invasive plate osteosynthesis (MIPO) with a locking plate (LP) in metastatic humeral fractures. Therefore, this study aimed to evaluate the effectiveness of MIPO in the treatment of metastatic humeral fractures. METHODS: Patients who underwent MIPO for metastatic humeral fractures were included in this study. Data on patient demographics, new Katagiri score, operative time, amount of blood loss, bone union rate, range of motion (ROM) of the shoulder and elbow, and perioperative complications were obtained. RESULTS: Twelve patients (seven men and five women) with 14 fractures were included in this study. The median operative time was 92.6 ± 28.9 min (range, 57-175 min) and the median amount of intraoperative blood loss was 106.1 ± 109.5 g (range, 10-330 g). No patient required surgery-related transfusion. The median duration of acquisition of active elbow ROM of>100° and active shoulder flexion of >90° were 8.9 ± 6.6 days (range, 1-30 days) and 17.5 ± 13.0 days (range, 6-47 days), respectively. The mean follow-up period was 10.0 ± 9.0 months (range, 1-33 months). There were no complications, and no patient required any further surgery for the affected humerus until death. CONCLUSION: MIPO using an LP provided acceptable functional outcomes in advanced-stage cancer patients with metastatic humeral fractures during their limited lifetime.


Asunto(s)
Fracturas del Húmero , Neoplasias , Masculino , Humanos , Femenino , Fracturas del Húmero/diagnóstico por imagen , Fracturas del Húmero/cirugía , Fracturas del Húmero/etiología , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Resultado del Tratamiento , Placas Óseas , Fijación Interna de Fracturas
9.
J Epidemiol ; 31(11): 573-580, 2021 11 05.
Artículo en Inglés | MEDLINE | ID: mdl-34483151

RESUMEN

BACKGROUND: Kawasaki disease is suspected to be triggered by previous infection. The prevention measures for coronavirus disease 2019 (COVID-19) have reportedly reduced transmission of certain infectious diseases. Under these circumstances, the prevention measures for COVID-19 may reduce the incidence of Kawasaki disease. METHODS: We conducted a retrospective study using registration datasets of patients with Kawasaki disease who were diagnosed in all 11 inpatient pediatric facilities in Yamanashi Prefecture. The eligible cases were 595 cases that were diagnosed before the COVID-19 pandemic (from January 2015 through February 2020) and 38 cases that were diagnosed during the COVID-19 pandemic (from March through November 2020). Incidence of several infectious disease were evaluated using data from the Infectious Disease Weekly Report conducted by the National Institute of Infectious Diseases. RESULTS: Epidemics of various infectious diseases generally remained at low levels during the first 9 months (March through November 2020) of the COVID-19 pandemic. Moreover, the incidence of COVID-19 was 50-80 times lower than the incidence in European countries and the United States. The total number of 38 cases with Kawasaki disease for the 9 months during the COVID-19 pandemic was 46.3% (-3.5 standard deviations [SDs] of the average [82.0; SD, 12.7 cases] for the corresponding 9 months of the previous 5 years. None of the 38 cases was determined to be triggered by COVID-19 based on their medical histories and negative results of severe acute respiratory syndrome coronavirus 2 testing at admission. CONCLUSION: These observations provide a new epidemiological evidence for the notion that Kawasaki disease is triggered by major infectious diseases in children.


Asunto(s)
COVID-19/prevención & control , Síndrome Mucocutáneo Linfonodular/epidemiología , Pandemias/prevención & control , COVID-19/epidemiología , Niño , Preescolar , Bases de Datos Factuales , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Japón/epidemiología , Masculino , Síndrome Mucocutáneo Linfonodular/diagnóstico , Estudios Retrospectivos
10.
Clin Nephrol ; 95(3): 166-170, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33433319

RESUMEN

We report a case of a 32-year-old man who was undergoing chronic hemodialysis and had hyperphosphatemia and secondary hyperparathyroidism (SHPT) with multiple tumoral calcinosis (TC) lesions refractory to drug therapy. Total parathyroidectomy and autotransplantation were performed, and he recovered from TC within 3 months. Several soft-tissue calcifications were present, but neither computed tomography (CT) before diagnosis nor CT performed 12 months after surgery detected evidence of vascular calcification (VC), despite persistence of hyperphosphatemia. This patient had a high calcium (Ca) × phosphate (P) product and calciprotein particles, and high serum Ca and P levels are important risk factors for both TC and VC. P plays a crucial role in regulation of VC, but the absence of VC in our case suggests a specific circumstance in which VC does not progress even under a high phosphatemic state, and that P alone may be insufficient for VC progression. TC in our patient was probably due to severe SHPT and continuous high serum P and Ca × P product levels, but the absence of VC suggests that the pathophysiologic process leading to VC requires further investigation, particularly in chronic kidney disease.


Asunto(s)
Calcinosis , Hiperparatiroidismo Secundario , Hiperfosfatemia , Diálisis Renal/efectos adversos , Insuficiencia Renal Crónica , Adulto , Calcio/sangre , Humanos , Masculino , Fosfatos/sangre , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/terapia
11.
Endocr J ; 68(12): 1411-1419, 2021 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-34234053

RESUMEN

Congenital hypothyroidism (CH) is considered the most common congenital endocrine disorder of genetic origin. Next generation sequencing (NGS) is the standard method for identifying genetic mutations, but it is an expensive and complex technique. Therefore, we propose to use Sanger sequencing to identify selected variants of the four most common CH-causative genes: DUOX2, TG, TSHR, and PAX8. To analyze the performance of Sanger sequencing, we compared its variant detection ability with that of a CH NGS panel containing 53 genes. We performed Sanger sequencing of selected variants and panel NGS analysis of 25 Japanese patients with CH. Sanger sequencing identified nine variants in seven patients, while NGS identified 24 variants in 14 patients. Of these, eight, five, eight, two, and one were found to be potentially pathogenic in DUOX2, TSHR, TG, UBR1, and TPO genes, respectively. The percentage of detectable variants using Sanger sequencing compared with NGS was 37.5% (9/24 variants), whereas the percentage of detectable cases carrying variants using Sanger sequencing compared with NGS was 50% (7/14 patients). We proposed a system for screening commonly identified CH-related variants by Sanger sequencing. Sanger sequencing could therefore identify about a third of CH-causative variants, so is considered an effective and efficient form of pre-screening before NGS.


Asunto(s)
Hipotiroidismo Congénito , Hipotiroidismo Congénito/diagnóstico , Hipotiroidismo Congénito/genética , Oxidasas Duales/genética , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Mutación
12.
J Clin Apher ; 36(1): 196-205, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32823371

RESUMEN

We present six cases of antimelanoma differentiation-associated gene 5 antibody (anti-MDA5-Ab)-positive clinically amyopathic dermatomyositis (CADM) with rapidly progressive interstitial lung disease (RP-ILD), which is known to have a poor prognosis. The outcomes of these cases are described after treatment with therapeutic plasma exchange (TPE). Clinical and therapeutic data for patients with CADM with RP-ILD were collected retrospectively from medical records. All six patients received early intensive care including high-dose corticosteroids, intravenous cyclophosphamide, and a calcineurin inhibitor, but lung disease and hypoxia became more severe. TPE was performed over a median of 9.5 sessions (range 3-14) per patient, and the median duration from admission to TPE was 23 days. Three patients received combined direct hemoperfusion using a polymyxin B-immobilized fiber column (PMX-DHP) therapy on successive days to manage acute respiratory failure. Four patients survived and two died due to respiratory failure. In the survival cases, ferritin decreased, and ferritin and KL-6 were lower at diagnosis. The patients who died had a higher alveolar-arterial oxygen difference and more severe lung lesions at the time of initiation of TPE. These findings indicate that a combination of conventional therapy and TPE may be useful for improvement of the prognosis of CADM with RP-ILD at the early stage of onset.


Asunto(s)
Autoanticuerpos/sangre , Dermatomiositis/terapia , Helicasa Inducida por Interferón IFIH1/inmunología , Enfermedades Pulmonares Intersticiales/terapia , Intercambio Plasmático/métodos , Anciano , Dermatomiositis/diagnóstico , Dermatomiositis/inmunología , Femenino , Humanos , Enfermedades Pulmonares Intersticiales/inmunología , Masculino , Persona de Mediana Edad
13.
J Shoulder Elbow Surg ; 29(2): e60-e65, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31784383

RESUMEN

BACKGROUND: Brachial plexus palsy after clavicle fracture is extremely rare. We experienced 3 cases of brachial plexus palsy after clavicle fracture and investigated the findings that such patients have in common and the clinical results of these cases. METHODS: We retrospectively analyzed the data of 3 patients with clavicle fracture who had no neurovascular symptoms at the time of the initial injury but gradually developed brachial plexus palsy within 1 month after the injury. The patients were aged 70, 62, and 68 years; 2 patients were male and 1 was female. The patients' backgrounds and clinical results were assessed. RESULTS: All patients had a displaced middle-third clavicle fracture and underwent conservative therapy with a figure-8 bandage. The intervals between fracture and symptoms of brachial plexus palsy were 8, 30, and 14 days. The times from symptoms of brachial plexus palsy to surgery were 27, 75, and 28 days. In all patients, surgery revealed a ruptured subclavius muscle and abnormal development of granulation tissue around the fracture site, compressing the brachial plexus. Open reduction and plate fixation was performed in 2 patients, and clavicle resection was performed in 1 patient. The intervals between surgery and full recovery of muscle strength were 11, 6, and 6 months. CONCLUSION: The findings our 3 patients with brachial plexus palsy after clavicle fracture had in common are old age, middle-third displaced clavicle fracture, and abnormal development of granulation tissue around the fracture site. Surgical intervention yielded good clinical outcomes.


Asunto(s)
Neuropatías del Plexo Braquial/etiología , Clavícula/lesiones , Fracturas Óseas/complicaciones , Fracturas Óseas/patología , Tejido de Granulación , Síndromes de Compresión Nerviosa/etiología , Anciano , Neuropatías del Plexo Braquial/cirugía , Femenino , Fracturas Óseas/cirugía , Humanos , Masculino , Persona de Mediana Edad , Síndromes de Compresión Nerviosa/cirugía , Estudios Retrospectivos
14.
J Orthop Sci ; 24(5): 888-893, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30772125

RESUMEN

INTRODUCTION: Few reports have examined the outcomes and complications of temporary bridging external fixation (EF) in open fracture of the lower limb followed by conversion to open reduction internal fixation (ORIF). The purpose of this study was to evaluate healing rates and complications in patients treated with conversion from external fixation to definitive internal fixation for open fracture of the lower limb. METHOD: Patients who underwent temporary bridging EF and subsequent conversion to internal fixation (IF) for open fracture of the lower limb, with follow-up period ≥12 months were included in this study. Demographic data, Gustilo-Anderson classification, fracture type, duration to definitive surgery, surgical procedure, perioperative complications, and additional procedures for cases with complications were obtained. RESULTS: In total, 58 patients (43 males, 15 females), 63 fractures were included in this study. Four fractures (6.3%) were Gustilo grade I, 11 fractures (17.5%) were grade II, 34 fractures (54.0%) were grade IIIa, 12 fractures (19.0%) were grade IIIb, and two fractures (3.2%) were grade IIIc. Mean duration of the application of EF was 12.4 days (range, 3-45 days) until conversion to definitive IF. Rates of deep infection and nonunion were both 9.5%, with two cases showing concomitant infection and nonunion. Rates of infection were 8.8% (3/34) in grade IIIa and 25% (3/12) in grade IIIb. Rates of nonunion were 9.1% (1/11) in grade II, 2.9% (1/34) in grade IIIa and 33% (4/12) in grade IIIb. CONCLUSION: Temporary EF for open fracture of the lower limb followed by conversion to IF, as early as soft tissue and general condition permit, may be a safe and effective procedure for patients with lower-limb open fracture of Gustilo grade IIIa or less. LEVEL OF EVIDENCE: Level IV, Case series.


Asunto(s)
Fijadores Externos , Fijación Interna de Fracturas/métodos , Fracturas Abiertas/cirugía , Extremidad Inferior/lesiones , Extremidad Inferior/cirugía , Reducción Abierta/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Estudios Retrospectivos , Resultado del Tratamiento , Adulto Joven
15.
Am J Med Genet A ; 176(5): 1222-1224, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29681107

RESUMEN

Proteus syndrome (PS) is characterized by the progressive, segmental, or patchy overgrowth of the skin, and other tissues. This is the first case report of recurrent severe insulin-independent hypoglycemia in an infant with PS. Somatic p.E17K of AKT1 mutation was confirmed. The patient also had a giant umbilical cord, which has not yet been reported in PS.


Asunto(s)
Hipoglucemia/sangre , Fenotipo , Síndrome de Proteo/sangre , Síndrome de Proteo/diagnóstico , Cordón Umbilical/anomalías , Biomarcadores , Análisis Mutacional de ADN , Humanos , Lactante , Imagen por Resonancia Magnética , Masculino , Mutación , Diagnóstico Prenatal , Síndrome de Proteo/genética , Proteínas Proto-Oncogénicas c-akt/genética , Cordón Umbilical/diagnóstico por imagen
16.
Nephrol Dial Transplant ; 33(4): 598-606, 2018 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-28992288

RESUMEN

Background: Increasing evidence indicates that epidermal growth factor receptor (EGFR) has a pathogenic role in renal fibrosis. Currently no effective treatment can completely halt the progression of chronic kidney disease (CKD). This study was undertaken to investigate the renoprotective effects of erlotinib, a tyrosine kinase inhibitor that can block EGFR activity in the progression of CKD and the mechanisms involved. Methods: Sprague Dawley rats with 5/6 nephrectomy were administered either erlotinib or vehicle from 2 weeks after surgery and for a period of 8 weeks. Blood pressure, proteinuria and serum creatinine were measured periodically. Renal morphological investigations were performed at sacrifice. In vitro, we used normal human mesangial cells (NHMCs) and human proximal tubular cells to investigate the inhibitory effects of erlotinib on renal fibrosis-associated signaling pathways by western blotting. Results: Erlotinib treatment significantly blunted the progression of CKD as evidenced by reduced levels of serum creatinine, proteinuria and renal cortical profibrogenic genes and scores of glomerulosclerosis and tubulointerstitial damage. Tubulointerstitial macrophage infiltration and multiple pro-inflammatory cytokine gene expression levels were also attenuated by erlotinib treatment. In vitro, heparin-binding epidermal growth factor-like growth factor-induced Akt and extracellular-regulated kinase (ERK) 1/2 activation in normal human mesangial cells and human proximal tubular cells was inhibited by pretreatment with erlotinib. Conclusions: EGFR blocking by erlotinib protected against renal fibrosis in 5/6 nephrectomized rats via inhibition of Akt and ERK 1/2 signaling pathways, which are associated with renal fibrosis. Erlotinib also has anti-inflammatory properties, which may contribute to its renoprotective effects. Erlotinib represents a potential novel therapeutic strategy for the treatment of CKD.


Asunto(s)
Clorhidrato de Erlotinib/farmacología , Fibrosis/prevención & control , Inhibidores de Proteínas Quinasas/farmacología , Insuficiencia Renal Crónica/prevención & control , Transducción de Señal/efectos de los fármacos , Animales , Células Cultivadas , Progresión de la Enfermedad , Receptores ErbB/antagonistas & inhibidores , Fibrosis/etiología , Fibrosis/metabolismo , Humanos , Macrófagos/citología , Macrófagos/efectos de los fármacos , Macrófagos/metabolismo , Masculino , Nefrectomía/efectos adversos , Ratas , Ratas Sprague-Dawley , Insuficiencia Renal Crónica/metabolismo , Insuficiencia Renal Crónica/patología
17.
J Shoulder Elbow Surg ; 27(12): e372-e379, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30111504

RESUMEN

BACKGROUND: This study compared imaging findings of blood flow changes between symptomatic rotator cuff tear (RCT) and frozen shoulder (FS) by using 3-dimensional dynamic magnetic resonance imaging (MRI) to determine the clinical characteristics of symptomatic RCT. METHODS: The 2 study groups comprised 31 symptomatic RCT patients who underwent arthroscopic rotator cuff repair and 30 patients with FS. We denoted abnormal blood flow detected around the glenohumeral joint as the burning sign (BS). We evaluated the characteristics of dynamic MRI and compared them between BS-positive and BS-negative patients in the RCT group. RESULTS: All members of the FS group showed the BS. Conversely, the incidence of the BS in RCT patients was 53% (16 of 31). The BS in RCT and FS patients was observed in the rotator interval in 16 shoulders, in the axillary pouch in 3 shoulders (P < .01), and in the intertubercular groove in 10 RCT and 12 FS patients. In the RCT group, 16 patients with BS had a statistically significantly higher Numeric Rating Score at rest (P = .0005) and in motion (P = .04) than the 15 patients without BS and exhibited a higher rate of small and medium tears and a higher rate of shoulder contracture. CONCLUSION: Dynamic MRI of symptomatic RCT (53.3%) highlighted abnormal vascularization around the glenohumeral joint, which may be associated with pain and contracture in RCT as in FS.


Asunto(s)
Bursitis/fisiopatología , Imagen por Resonancia Magnética/métodos , Lesiones del Manguito de los Rotadores/fisiopatología , Manguito de los Rotadores/irrigación sanguínea , Articulación del Hombro/irrigación sanguínea , Adulto , Anciano , Artroscopía , Bursitis/diagnóstico por imagen , Estudios de Casos y Controles , Femenino , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana Edad , Movimiento/fisiología , Estudios Prospectivos , Flujo Sanguíneo Regional , Descanso/fisiología , Lesiones del Manguito de los Rotadores/diagnóstico por imagen , Lesiones del Manguito de los Rotadores/cirugía
20.
Nagoya J Med Sci ; 79(1): 43-46, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-28303060

RESUMEN

The Japanese Orthopaedic Association has proposed the term "locomotive syndrome" to designate a condition that places a person at high risk for long-term care. However, in daily clinical practice, even when a diagnosis of locomotive syndrome is made, exercise therapy often cannot be successfully performed in some patients owing to their lack of motivation. We speculated that locomotive syndrome and depressive states co-exist in elderly people. The purpose of this study was to determine the presence or absence of depressive states in older patients aged ≥ 65 years who were diagnosed with locomotive syndrome. A questionnaire survey, the 25-Question Geriatric Locomotive Function Scale and Self-Rating Questionnaire for Depression was conducted. The items of the interview survey were sex, age, and history of treatment for hypertension or diabetes mellitus. For somatometry, height and body weight were measured. Patients diagnosed with locomotive syndrome (LS group) were compared with those without locomotive syndrome (non-LS group). The LS group included 99 patients, mean age was 79.4 years old, while the non-LS group included 101 patients, mean age was 76.3 years old. The number of patients with depressive states and number of females were significantly higher in the LS group. In addition, the LS group was significantly older and shorter. Multivariate analysis revealed depressive states and age to be independent factors. Therapy for patients with LS should include evaluation and, if necessary, treatment for concomitant depression.


Asunto(s)
Depresión/patología , Depresión/fisiopatología , Limitación de la Movilidad , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Masculino , Análisis Multivariante , Encuestas y Cuestionarios
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