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1.
Front Cell Infect Microbiol ; 14: 1363437, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38529473

RESUMEN

Purpose: The objective of this study was to investigate the epidemiological characteristics, distribution of isolates, prevailing patterns, and antibiotic susceptibility of bacterial keratitis (BK) in a Tertiary Referral Hospital located in Southwest China. Methods: A retrospective analysis was conducted on 660 cases of bacterial keratitis occurring between January 2015 and December 2022. The demographic data, predisposing factors, microbial findings, and antibiotic sensitivity profiles were examined. Results: Corneal trauma emerged as the most prevalent predisposing factor, accounting for 37.1% of cases. Among these cases, bacterial culture results were positive in 318 cases, 68 species of bacteria were identified. The most common Gram-Positive bacteria isolated overall was the staphylococcus epidermis and the most common Gram-Negative bacteria isolated was Pseudomonas aeruginosa. Methicillin-Resistant Staphylococci accounted for 18.1% of all Gram-Positive bacteria. The detection rate of P. aeruginosa showed an increasing trend over time (Rs=0.738, P=0.037). There was a significant decrease in the percentage of Gram-Negative microorganisms over time (Rs=0.743, P=0.035). The sensitivity of Gram-Positive bacteria to linezolid, vancomycin, tigecycline, quinupristin/dalfopristin, and rifampicin was over 98%. The sensitivity rates of Gram-Negative bacteria to amikacin, meropenem, piperacillin/tazobactam, cefoperazone sodium/sulbactam, ceftazidime, and cefepime were all above 85%. In patients with a history of vegetative trauma, the possibility of BK should be taken into account in addition to the focus on fungal keratitis. Conclusion: The microbial composition primarily consists of Gram-Positive cocci and Gram-Negative bacilli. Among the Gram-Positive bacteria, S. epidermidis and Streptococcus pneumoniae are the most frequently encountered, while P. aeruginosa is the predominant Gram-Negative bacteria. To combat Gram-Positive bacteria, vancomycin, linezolid, and rifampicin are considered excellent antimicrobial agents. When targeting Gram-Negative pathogens, third-generation cephalosporins exhibit superior sensitivity compared to first and second-generation counterparts. As an initial empirical treatment for severe cases of bacterial keratitis and those unresponsive to fourth-generation fluoroquinolones in community settings, the combination therapy of vancomycin and tobramycin is a justifiable approach. Bacterial keratitis can be better managed by understanding the local etiology and antibacterial drug susceptibility patterns.


Asunto(s)
Infecciones Bacterianas del Ojo , Queratitis , Humanos , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Linezolid/uso terapéutico , Vancomicina , Rifampin , Estudios Retrospectivos , Centros de Atención Terciaria , Farmacorresistencia Bacteriana , Cefoperazona/uso terapéutico , Infecciones Bacterianas del Ojo/tratamiento farmacológico , Infecciones Bacterianas del Ojo/epidemiología , Sulbactam/uso terapéutico , Bacterias Grampositivas , Staphylococcus , Bacterias Gramnegativas , Queratitis/tratamiento farmacológico , Queratitis/epidemiología , Queratitis/microbiología , Pruebas de Sensibilidad Microbiana
2.
J Dent Sci ; 18(1): 9-16, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36643252

RESUMEN

Background/purpose: Effective filling of the lateral canals is of great significance in successful root canal treatment, but it is generally being challenging. This study aimed to evaluate the influence of relative positions of the heat carrier and lateral canal opening on gutta-percha obturation of lateral canals in a three-dimensional (3D)-printed model. Materials and methods: Thermal conductivity and real-time temperature transmission of gutta-percha were investigated using laser flash and thermal infrared analyses. 3D-printed root canal models with lateral canals at 1, 3, and 5 mm from the apex were fabricated, and different relative positions of the heat carrier were tested. The obturation process was recorded on video, and the obturation depth of the lateral canals was observed using X-ray micro-computed tomography. Results: Gutta-percha showed low thermal conductivity of 1.07 W/(m·K), and heating increased the temperature of gutta-percha above 60 °C only within 1 mm beyond the heat carrier tip. For lateral canals at 1 and 3 mm from the apex, gutta-percha penetrated further with deeper penetration of the heat carrier (P < 0.05). For 5-mm lateral canals, the heat carrier was always at apical level and the gutta-percha obturation depth was more at 2 mm apically than at 3 or 4 mm (P < 0.05). Conclusion: Gutta-percha is a poor thermal conductor. The position of the heat carrier in relation to the lateral canal opening affects obturation depth. Only when the heat carrier reaches or passes the lateral canal opening can gutta-percha penetrate a lateral canal.

3.
Medicine (Baltimore) ; 101(27): e29280, 2022 Jul 08.
Artículo en Inglés | MEDLINE | ID: mdl-35801779

RESUMEN

RATIONALE: Neurofibromatosis type 1 (NF1) is a common autosomal dominant genetic disorder. NF1 is a multisystemic disease and its pathogenesis involves mutations in the NF1 gene on chromosome 17q11.2 causing RAS overactivation to stimulate abnormal cell proliferation. In this article, a Chinese family with neurofibromatosis type 1 was reported and the relationship between the phenotype and gene mutation was analyzed. PATIENT CONCERNS: The patient was a 9-year-old-male child diagnosed with right eye exophthalmos combined with right eye glioma, optic edema, and peripheral visual field defect. There were multiple cafe-au-lait spots in the whole body of the child. His mother had multiple cafe-au-lait spots, and the eye examination showed no abnormalities. DIAGNOSIS: The proband was diagnosed with NF1 and a heterozygous frameshift mutation (c. 6641delG p. Arg2214Asnfs*30) in the NF1 gene was identified, and his mother also carried the same pathogenic mutation. INTERVENTIONS: To protect the vision of the right eye, he was treated with gamma knife radiotherapy. OUTCOMES: After therapy, his fundus optic disc edema was decreased and the best corrected visual acuity of the right eye was increased. LESSONS: Gene detection is helpful to diagnose the disease and guide the treatment. Gamma knife radiotherapy can preserve better neurological function.


Asunto(s)
Neurofibromatosis 1 , Manchas Café con Leche , China , Femenino , Mutación del Sistema de Lectura , Genes de Neurofibromatosis 1 , Humanos , Masculino , Madres , Mutación , Neurofibromatosis 1/complicaciones , Neurofibromatosis 1/diagnóstico , Neurofibromatosis 1/genética , Linaje
4.
BMC Ophthalmol ; 21(1): 214, 2021 May 13.
Artículo en Inglés | MEDLINE | ID: mdl-33985463

RESUMEN

BACKGROUND: Mucopolysaccharidosis type VI (MPS VI) is a rare autosomal recessive inherited disease caused by mutations in the arylsulfatase B (ARSB) gene. MPS VI is a multisystemic disease resulting from a deficiency in arylsulfatase B causing an accumulation of glycosaminoglycans in the tissues and organs of the body. In this report, we present the case of a 16-year-old Chinese male who presented with vision loss caused by corneal opacity. MPS VI was confirmed by genetic diagnosis. CASE PRESENTATION: A 16-year-old Chinese male presented with a one-year history of binocular vision loss. The best-corrected visual acuity was 0.25 in the right eye and 0.5 in the left eye. Although slit-lamp examination revealed corneal opacification in both eyes, the ocular examinations of his parents were normal. At the same time, the patient presented with kyphotic deformity, short stature, joint and skeletal malformation, thick lips, long fingers, and coarse facial features. Genetic assessments revealed that ARSB was the causative gene. Compound heterozygous missense mutations were found in the ARSB gene, namely c.1325G > A (p. Thr442Met) (M1) and c.1197G > C (p. Phe399Leu) (M2). Genetic diagnosis confirmed that the patient had MPS VI. CONCLUSIONS: This paper reports a case of MPS VI confirmed by genetic diagnosis. MPS VI is a multisystem metabolic disease, with corneal opacity as a concomitant ocular symptom. As it is difficult for ophthalmologists to definitively diagnose MPS VI, genetic testing is useful for disease confirmation.


Asunto(s)
Mucopolisacaridosis VI , N-Acetilgalactosamina-4-Sulfatasa , Adolescente , China , Humanos , Masculino , Mucopolisacaridosis VI/diagnóstico , Mucopolisacaridosis VI/genética , Mutación , Mutación Missense , N-Acetilgalactosamina-4-Sulfatasa/genética
5.
Huan Jing Ke Xue ; 42(4): 2080-2088, 2021 Apr 08.
Artículo en Chino | MEDLINE | ID: mdl-33742843

RESUMEN

Increasing antibiotic resistant genes (ARG) are being detected in animal manure-amended soil, causing public concerns. However, the effects of animal manure fertilization on the ARG of vegetable endophytes remain unknown. In this study, high-throughput quantitative PCR (HT-qPCR) was used to explore the effects of poultry manure fertilization on the bacterial community and resistome in the soil, root endophytes, and leaf endophytes from Cichorium endivia L.. The results indicated that poultry manure fertilization not only enhanced the number of ARG in soil and root endophytes, but also increased the abundance of ARG in the soil, root endophytes, and leaf endophytes. The relationship analysis demonstrated that the ARG profile in the soil and vegetable endophytes was significantly correlated with the bacterial community, and the ARG abundance was highly correlated with Proteobacteria, Acidobacteria, Actinobacteria, and Cyanobacteria. In addition, the overlapping ARG between the Cichorium endivia L. endophyte and soil indicated the internal spread route of the ARG from the manure to Cichorium endivia L through the soil. In conclusion, poultry manure fertilization increased the diversity and abundance of the ARG in vegetables via the manure-soil-vegetable pathway.


Asunto(s)
Estiércol , Suelo , Animales , Antibacterianos/farmacología , Farmacorresistencia Microbiana , Fertilización , Genes Bacterianos , Microbiología del Suelo , Verduras
6.
Nucl Med Commun ; 42(7): 782-791, 2021 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-33625181

RESUMEN

OBJECTIVE: The present study was to explore the feasibility of developing positron molecular probes for the metastasis-associated lung adenocarcinoma transcript 1 (MALAT-1), to evaluate the distribution and pharmacokinetics, and to explore whether the probe can be used for the imaging of malignant tumours with high MALAT-1 expression in vivo. METHODS: [68Ga]Ga labelling of MALAT-1 antisense oligonucleotides ([68Ga]Ga-MALAT-1-ASO) was synthesized by the conjugation of MALAT-1-NOTA-ASO and [68Ga] Ga3+. The radiochemical purity was shown by radio-HPLC. Pharmacokinetic studies and cellular uptake studies were performed. The biodistribution and metabolism of [68Ga] Ga-MALAT-1-ASO in normal ICR and MHCC-LM3 xenograft-bearing nude mice were studied in vitro and in vivo. RESULTS: [68Ga]Ga-MALAT-1-ASO was obtained in 98% radiochemical yield from a 10-min synthesis with 100 ± 50 MBq/nmol specific activity and >99% radiochemical purity. The Log D was -2.53 ± 0.19. The tracer displayed excellent stability in vitro. 68Ga-MALAT-1 ASO showed satisfactory binding ability to MHCC-LM3 cells; the biodistribution of [68Ga]Ga-MALAT-1-ASO in MHCC-LM3 tumour-bearing mice demonstrated specific uptake of the radiotracer (3.04 ± 0.11%ID/g). Micro-PET images of the MHCC-LM3 cell xenograft mouse model provided further evidence to support the hypothesis that [68Ga]Ga-MALAT-1-ASO can target tumours in vivo. CONCLUSIONS: We conclude that [68Ga]Ga labelling of MALAT-1 ASO is a convenient approach. The high accumulation of [68Ga]Ga-MALAT-1-ASO for tumours expressing MALAT-1 suggests that this radio compound may be used as a potential positron molecular probe. Molecular structure optimization studies need to be more in-depth to further reduce its background uptake and enhance tumour targeting.


Asunto(s)
Adenocarcinoma del Pulmón , Oligonucleótidos Antisentido , Tomografía de Emisión de Positrones , Animales , Línea Celular Tumoral , Masculino , Ratones , Ratones Desnudos , Distribución Tisular
7.
BMC Nephrol ; 21(1): 257, 2020 07 06.
Artículo en Inglés | MEDLINE | ID: mdl-32631272

RESUMEN

BACKGROUND: Secondary hyperparathyroidism (SHPT) is a common high-risk factor for mortality in end-stage renal disease, and parathyromatosis and supernumerary parathyroid glands are very rare causes of persistent SHPT. Preoperative diagnosis and removal of all hyperplastic parathyroid glands are challenging. We report a rare case of persistent SHPT due to parathyromatosis and supernumerary parathyroid glands and successful management by multiple imaging modalities. CASE PRESENTATION: A 53-year-old Chinese woman on haemodialysis experienced discomfort due to itching and bone pain due to persistent SHPT after parathyroidectomy. The supernumerary parathyroid glands and parathyromatosis were detected by multiple imaging modalities, including 99mTc-sestamibi (99mTc-MIBI) scans, ultrasonography and four-dimensional computed tomography (4D-CT) and then excised; pathological confirmation was performed. During follow-up, her serum calcium and parathyroid hormone levels were stable in the appropriate ranges, and no complications arose. CONCLUSIONS: Because of persistent SHPH after parathyroidectomy in patients with haemodialysis, multiple imaging modalities, including 99mTc-MIBI scans, 4D-CT and ultrasonography, are helpful for detecting supernumerary parathyroid glands and parathyromatoses. Accurate preoperative localization of this rare lesion is important for management, enabling the removal of all affected parathyroid tissues.


Asunto(s)
Hiperparatiroidismo Secundario/diagnóstico por imagen , Fallo Renal Crónico/terapia , Glándulas Paratiroides/diagnóstico por imagen , Diálisis Renal , Calcio/sangre , Femenino , Tomografía Computarizada Cuatridimensional , Humanos , Hiperparatiroidismo Secundario/sangre , Hiperparatiroidismo Secundario/etiología , Hiperparatiroidismo Secundario/cirugía , Fallo Renal Crónico/complicaciones , Persona de Mediana Edad , Glándulas Paratiroides/anomalías , Hormona Paratiroidea/sangre , Paratiroidectomía , Radiofármacos , Recurrencia , Tomografía Computarizada por Tomografía Computarizada de Emisión de Fotón Único , Tecnecio Tc 99m Sestamibi , Ultrasonografía
9.
BMC Nephrol ; 20(1): 405, 2019 11 09.
Artículo en Inglés | MEDLINE | ID: mdl-31706276

RESUMEN

BACKGROUND: Persistent hyperparathyroidism after kidney transplantation has been associated with adverse outcomes. Parathyroidectomy is the definitive treatment approach, but the success of parathyroidectomy relies on the accurate preoperative localization of the culprit parathyroid lesions. Simultaneous intrathyroidal parathyroid adenomas and multifocal papillary thyroid carcinoma present important diagnostic challenges. Here, we describe a patient with kidney transplantation who underwent successful surgery after being evaluated with functional and structural imaging. CASE PRESENTATION: A 53-year-old man presented with potentially malignant multifocal thyroid nodules by ultrasonography 2 years after kidney transplantation. The patient had hypercalcaemia and persistent hyperparathyroidism. Thyroid papillary carcinoma was confirmed in the left thyroid nodules by fine-needle aspiration biopsy. The right superior thyroid hypoechoic nodule was 1.2 cm in size and showed marked uptake of the tracer 99mTcO4-sestamibi during single-photon emission computed tomography/computed tomography (SPECT/CT); additionally, a cystic parathyroid lesion without tracer uptake was present behind the left superior pole of the thyroid. The histological examination demonstrated the coexistence of right intrathyroidal parathyroid adenomas, left cystic parathyroid nodular hyperplasia and multifocal papillary thyroid carcinoma. At the 6-month follow-up, the serum calcium levels were within the normal range, and the patient's kidney function remained stable. CONCLUSIONS: Simultaneous intrathyroidal parathyroid adenomas and multifocal papillary thyroid carcinoma in a patient with kidney transplantation is a rare clinical scenario. Physicians must be aware that the combination of functional (SPECT/CT) and structural (ultrasonography) imaging is highly successful in diagnosing patients with coexistent intrathyroidal parathyroid adenomas and papillary thyroid carcinoma.


Asunto(s)
Adenoma/diagnóstico por imagen , Trasplante de Riñón , Neoplasias Primarias Múltiples/diagnóstico por imagen , Neoplasias de las Paratiroides/diagnóstico por imagen , Cáncer Papilar Tiroideo/diagnóstico por imagen , Neoplasias de la Tiroides/diagnóstico por imagen , Adenoma/patología , Biopsia con Aguja Fina , Humanos , Hipercalcemia , Hiperparatiroidismo Secundario , Hiperplasia/patología , Masculino , Persona de Mediana Edad , Neoplasias Primarias Múltiples/patología , Glándulas Paratiroides/patología , Neoplasias de las Paratiroides/patología , Tomografía Computarizada por Tomografía Computarizada de Emisión de Fotón Único , Cáncer Papilar Tiroideo/patología , Glándula Tiroides/diagnóstico por imagen , Glándula Tiroides/patología , Neoplasias de la Tiroides/patología , Ultrasonografía
10.
BMC Infect Dis ; 19(1): 1000, 2019 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-31775654

RESUMEN

BACKGROUND: The prevalence of HIV among men who have sex with men (MSM) has become a significant public health challenge. The aim was to comprehensively estimate the national prevalence of HIV among MSM and its time trends through a large-scale systematic analysis. METHODS: Systematic search of Cochrane Library, PubMed, EMBASE, CNKI, VIP, and Wanfang Data databases without language restriction for studies on the prevalence of HIV among MSM published before Dec.31, 2018. Studies were eligible for inclusion if they were published in the peer-reviewed literature and used validated assessment methods to assess the prevalence of HIV among MSM. Estimates were pooled using random-effects analysis. RESULTS: Data were extracted from 355 cross-sectional studies (571,328 individuals) covered 59 cities from 30 provinces and municipalities of China. The overall national prevalence of HIV among MSM from 2001 to 2018 was estimated to be 5.7% (95% CI: 5.4-6.1%), with high between-study heterogeneity (I2 = 98.0%, P <  0.001). Our study showed an increased tendency in the HIV prevalence as time progressed by meta-regression analysis (I2 = 95.9%, P <  0.0001). HIV prevalence was the highest in those aged 50 years and older with HIV prevalence of 19.3% (95%CI: 13.1-27.4%, N = 13). HIV was more prevalent in the illiterate population (16.8%), than in those who had received an education. Although the internet was a major venue for Chinese MSM seeking male sex partners (35.6, 95%CI: 32.3-39.9%, N = 101), seeking MSM in bathhouses/saunas had the highest associated prevalence of HIV (13.4, 95%CI: 10.3-17.1%, N = 22). The HIV prevalence among MSM varied by location: compared with other regions in China, HIV was highly prevalent among MSM in the southwest (10.7, 95%CI: 9.3-12.2%, N = 91). Compared to participants who sometimes or always used condoms, participants who had never used a condom in the past 6 months had a higher risk of HIV infection, with odds ratios of 0.1 (95%CI: 0.08-0.14). CONCLUSIONS: Our analysis provided reliable estimates of China's HIV burden among MSM, which appears to present an increasing national public health challenge. Effective government responses are needed to address this challenge and include the implementation of HIV prevention.


Asunto(s)
Infecciones por VIH/epidemiología , Salud Pública/métodos , Minorías Sexuales y de Género , Adolescente , Adulto , Factores de Edad , China/epidemiología , Ciudades/epidemiología , Condones , Estudios Transversales , Infecciones por VIH/prevención & control , Homosexualidad Masculina , Humanos , Internet , Alfabetización , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Prevalencia , Parejas Sexuales , Adulto Joven
11.
BMC Endocr Disord ; 19(1): 82, 2019 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-31357974

RESUMEN

BACKGROUND: Primary hyperparathyroidism (PHPT), which is mostly caused by a parathyroid adenoma, is fairly common in postmenopausal women but is relatively rare in pregnant women. PHPT-induced pancreatitis during pregnancy is associated with significant maternal and foetal morbidity and mortality. Diagnosis is challenging because of non-specific symptoms and changes in maternal calcium homeostasis. Information about the optimal treatment strategy for the prevention of catastrophic consequences to the mother and foetus is limited. Here, we describe a rare lethal case of severe acute necrotizing pancreatitis due to a parathyroid adenoma in a woman in her third trimester of pregnancy. CASE PRESENTATION: A previously healthy 24-year-old Chinese woman at 37 weeks of gestation presented with persisting epigastric pain, nausea and bilious vomiting for 1 day. PHPT-induced acute necrotizing pancreatitis was diagnosed on the basis of her serum calcium, parathyroid levels and imaging results. A caesarean section and parathyroidectomy were performed at 1 day and 11 days after admission, respectively. Histological examination confirmed a right inferior parathyroid adenoma with a size of 2.0 × 1.5 cm. Following the parathyroidectomy, the patient had eucalcaemia and presented normal parathyroid hormone (PTH) levels. Although the foetus was normal, the patient died of multiple organ failure due to severe pancreatitis. CONCLUSIONS: PHPT-induced acute necrotizing pancreatitis is a rare clinical entity and life-threatening condition to both the mother and the foetus during pregnancy. Early diagnosis can be challenging and is crucial. Appropriate treatment according to the patient's condition may effectively reduce maternal and foetal mortality.


Asunto(s)
Pancreatitis Aguda Necrotizante/etiología , Pancreatitis Aguda Necrotizante/cirugía , Neoplasias de las Paratiroides/complicaciones , Paratiroidectomía/métodos , Adulto , Femenino , Humanos , Pancreatitis Aguda Necrotizante/patología , Embarazo , Tercer Trimestre del Embarazo , Pronóstico , Índice de Severidad de la Enfermedad , Adulto Joven
12.
Medicine (Baltimore) ; 98(24): e16077, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31192970

RESUMEN

RATIONALE: Secondary hyperparathyroidism (SHPT) is often complicated with chronic renal failure. Though the total parathyroidectomy (TPTX) with forearm autotransplantation (FAT) has been commonly used to treatment refractory renal SHPT, the recurrence of SHPT is not infrequent, resulting from hyperplastic autograft, remnant parathyroid tissues, and supernumerary parathyroid gland (SPG). PATIENT CONCERNS: A 67-year-old man undergoing TPTX+FAT 4 years previously for renal SHPT, who received regular hemodialysis with active vitamin D supplements of Rocaltrol treatment postoperatively, was admitted to our hospital with progressively elevated serum intact parathyroid hormone (iPTH) from 176 to 1266 pg/mL for 8 months and bilateral ankle joints pain for 1 month. Tc-sestamibi dual-phase imaging with single positron emission tomography (SPECT)/computed tomography (CT) revealed a nodule in suprasternal fossa, besides a nodule in autografted site, accompanied with intense radioactivity. DIAGNOSIS: Recurrent SHPT was easily diagnosed based on previous medical history, painful joints, increased serum iPTH level and positive findings of Tc-sestamibi imaging. Routine postoperative pathology showed that the nodules were consistent with an adenomatoid hyperplasic autograft and a supernumerary parathyroid adenoma in suprasternal fossa, respectively. INTERVENTIONS: Reoperation for removing nodules in suprasternal fossa and autografted site was performed 1 month later. Then regular hemodialysis 3 times a week with Rocaltrol was continued. OUTCOMES: During 12 months of follow-up, the joints pain improved obviously and the serum iPTH level ranged from 30.1 to 442 pg/mL. LESSONS: Although rare, recurrent renal SHPT may be caused by a coexistence of both hyperfunctional autograft and SPG after TPTX+FAT. The Tc-sestamibi parathyroid imaging with SPECT/CT is helpful to locate the culprits of recurrent renal SHPT before reoperation. To prevent recurrence of renal SHPT, the present initial surgical procedures should be further optimized in patient on permanent hemodialysis.


Asunto(s)
Adenoma/complicaciones , Autoinjertos , Hiperparatiroidismo Secundario/etiología , Enfermedades Renales/complicaciones , Neoplasias de las Paratiroides/complicaciones , Adenoma/diagnóstico por imagen , Adenoma/patología , Adenoma/cirugía , Anciano , Autoinjertos/patología , Antebrazo , Humanos , Hiperparatiroidismo Secundario/diagnóstico por imagen , Hiperparatiroidismo Secundario/patología , Hiperparatiroidismo Secundario/cirugía , Hiperplasia , Enfermedades Renales/diagnóstico por imagen , Enfermedades Renales/patología , Enfermedades Renales/cirugía , Masculino , Neoplasias de las Paratiroides/diagnóstico por imagen , Neoplasias de las Paratiroides/patología , Neoplasias de las Paratiroides/cirugía , Recurrencia , Reoperación
13.
BMC Public Health ; 19(1): 578, 2019 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-31092218

RESUMEN

BACKGROUND: In China, the most populous developing country in the world, dementia represents a serious challenge. We performed a large-scale systematic review and meta-regression analysis to elucidate the prevalence of dementia and its subtypes and to identify potential factors underlying the differences between articles. METHODS: A comprehensive literature search was conducted in the following databases to identify studies published up to December 2015: Cochrane Library, CBMDISK, Chongqing VIP, CNKI, PubMed and EMBASE. All statistical analyses (including subtype and meta-regression analyses) were performed with R version 3.3.3. RESULTS: In total, 51 surveys were selected. The pooled prevalence rates of dementia and its main subtypes, namely, Alzheimer's disease (AD) and vascular dementia (VAD), for the population aged 55 years and older were 4.03, 2.44 and 1.09%, respectively. The outcomes showed that the meta-regression analysis was affected by the publication year, sample size, region and diagnostic criteria. CONCLUSIONS: Our analysis provided reliable estimates of the prevalence of dementia/ AD/ VD over the past 30 years, which may be affected by education level, and diagnostic criteria. The prevalence of AD/VAD was higher in northern than in southern China, which warrants further study.


Asunto(s)
Demencia/epidemiología , Anciano , Enfermedad de Alzheimer/epidemiología , China/epidemiología , Bases de Datos Factuales , Demencia Vascular/epidemiología , Humanos , Persona de Mediana Edad , Prevalencia , Análisis de Regresión
14.
Clin Nucl Med ; 43(11): 825-827, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30179918

RESUMEN

A previously healthy 11-year-old boy with intermittent abdominal pain and bloody stool underwent Meckel scintigraphy. On the initial images, there was a faint U-shaped activity in the mid-abdominal region, which gradually faded and evolved into distinct foci of radiotracer accumulation in the later images. One of the foci changed its location during the study, suspected as moving Meckel diverticulum. A horseshoe kidney was noted by subsequent CT images, which corresponded to nonmoving foci. A Meckel diverticulum was confirmed after exploratory laparotomy, accounted for moving focus on Merkel scintigraphy.


Asunto(s)
Riñón Fusionado/complicaciones , Divertículo Ileal/complicaciones , Divertículo Ileal/diagnóstico por imagen , Pertecnetato de Sodio Tc 99m , Tomografía Computarizada por Rayos X , Niño , Humanos , Masculino , Movimiento
15.
Nucl Med Commun ; 39(9): 818-824, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29877993

RESUMEN

OBJECTIVE: The aim was to perform exploratory research on the application of technetium phytate (Tc-Phy) portal perfusion index (PPI) imaging in predicting the complications of hepatitis B cirrhosis and their severity. PATIENTS AND METHODS: A total of 65 hepatitis B cirrhosis patients were stratified, respectively, into three groups from classes A to C according to Child-Pugh scores and five groups from stages 1 to 5 according to the five-stage prognostic system. PPIs were compared and analyzed, respectively, among the three and five groups. The correlations between PPIs and major biochemical indices of liver function were also analyzed. One-way analysis of variance was used to compare the PPIs among the various groups and a nonparametric Spearman test was used to analyze the correlations between PPIs and various biochemical indices. RESULTS: PPIs of the five groups decreased gradually from stage 1 to stage 5 (73.03±8.49, 52.96±16.22, 46.24±15.25, 29.99±17.36, and 11.50±6.37, respectively); with the exception of the difference between stages 2 and 3 (P=0.252), the differences between the remaining groups were statistically significant (P<0.05). The PPI showed positive correlations with serum total protein, serum albumin, and albumin/globulin results (r=0.292, 0.559, 0.520, respectively; P<0.05), and negative correlations with serum globulin (r=-0.366, P<0.05). CONCLUSION: Technetium phytate PPI could be a promising noninvasive and effective method for predicting the complications of hepatitis B cirrhosis and their severity; a lower PPI value indicates a higher severity of complications for hepatitis B cirrhosis patients. PPI can provide very meaningful reference data for clinical practice.


Asunto(s)
Virus de la Hepatitis B/fisiología , Cirrosis Hepática/diagnóstico por imagen , Cirrosis Hepática/virología , Compuestos de Organotecnecio , Imagen de Perfusión , Ácido Fítico , Vena Porta/diagnóstico por imagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Cirrosis Hepática/metabolismo , Cirrosis Hepática/fisiopatología , Masculino , Persona de Mediana Edad , Pronóstico , Adulto Joven
16.
Oncotarget ; 8(49): 85804-85815, 2017 Oct 17.
Artículo en Inglés | MEDLINE | ID: mdl-29156758

RESUMEN

With the advent of next-generation sequencing technology, there is rapidly increasing interest in long noncoding RNAs (lncRNAs). The objectives of this study were to develop a novel lncRNA MALAT1 near-infrared optical probe, to evaluate the characteristics of this optical imaging probe in vitro and to determine whether it can be used for imaging MALAT1 expression in malignant tumours in vivo. Conjugation of Cy5.5 to MALAT1 ASO was accomplished using standard NHS (N-hydroxysuccinimide) ester procedures, and the labelled MALAT1 ASO was purified with a Glen-Pak DNA Purification Cartridge and reversed-phase high performance liquid chromatography (HPLC). The in vitro cellular uptake results showed that the percentage of cell binding increased with an increasing final concentration and increased with increasing incubation time for the MHCC-LM3 tumour cell flow cytometry analyses. in vivo optical imaging exhibited 5' (Cy5.5)-MALAT1 ASO uptake in the tumour with a maximum at 30 min p.i. that slowly washed out over time. High contrast to normal tissue was gradually observed from 4 h to 48 h p.i. Tumour-to-normal ratios of fluorescence intensities were plotted as a function of time. The in vivo competition assay showed little uptake of the probe into the tumours at any time point, indicating effective competition, selectivity of probe binding and retention by tumours in vivo. Our proposed Cy5.5 labelling of MALAT1 ASO can serve as a potent optical probe for in vivo imaging of tumour expressing MALAT1. Importantly, the successful development of optical probes provides a basis for specific molecular diagnoses in the field of lncRNAs.

17.
Thyroid ; 27(12): 1469-1474, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-29088997

RESUMEN

BACKGROUND: This study sought to investigate the clinical characteristics and outcomes of propylthiouracil (PTU)-induced antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis in patients with Graves' disease. METHODS: Sixteen patients diagnosed with PTU-induced ANCA-associated vasculitis at the authors' hospital from January 2010 to June 2017 were analyzed retrospectively. RESULTS: All 16 patients with PTU-induced ANCA-associated vasculitis were female. The mean age ± standard deviation of the patients was 39.4 ± 15.3 years (range 19-69 years), and the median time of onset was 36 months (range 1-193 months) post-PTU initiation. The median dose at the onset of PTU-induced ANCA-associated vasculitis was 150 mg/day (range 50-300 mg/day). All patients had a positive serum perinuclear staining pattern (p-ANCA) and antibodies directed against myeloperoxidase (anti-MPO). Six patients tested positive for both anti-MPO antibodies and antibodies directed against proteinase-3. Seven (43.8%) patients presented with involvement of a single organ. The kidney was the organ most commonly affected, as 12 (75%) patients were found to have disease involving this organ. PTU was stopped in all patients, corticosteroids were administered to two patients, and immunosuppressive agents and corticosteroids were administered to five patients. Three patients were lost to follow-up. However, the remaining patients achieved remission after a median follow-up period of 38 months (range 6-76 months). Patients who were positive for pANCA and displayed cytoplasmic staining showed negative findings at rates of approximately 53.8% (7/13) and 100% (6/6), respectively, following treatment. CONCLUSIONS: PTU-induced ANCA-positive vasculitis occurs at varying times and after exposure to various doses of PTU. The condition has a milder course and has a better prognosis after PTU cessation.


Asunto(s)
Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/inducido químicamente , Antitiroideos/efectos adversos , Enfermedad de Graves/tratamiento farmacológico , Propiltiouracilo/efectos adversos , Adulto , Anciano , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/diagnóstico , Antitiroideos/uso terapéutico , China , Femenino , Humanos , Persona de Mediana Edad , Propiltiouracilo/uso terapéutico , Estudios Retrospectivos , Adulto Joven
18.
Biomed Res Int ; 2016: 3048261, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27999793

RESUMEN

Aim was to assess the therapeutic value of portal vein stenting (PVS) combined with iodine-125 seed (125I seed) strand endovascular implantation followed by transcatheter arterial chemoembolization (TACE) for treating patients with hepatocellular carcinoma (HCC) and portal vein tumor thrombus (PVTT). This was a retrospective study of 34 patients aged 29-81 years, diagnosed HCC with PVTT, and treated with PVS combined with 125I seed strand endovascular implantation followed by TACE between January 2012 and August 2014. Survival, stent patency, technical success rate, complications related to the procedure, and adverse events were recorded. The technical success rate was 100%. No serious procedure-related adverse event was recorded. The median survival was 147 days. The cumulative survival rates and stent patency rates at 90, 180, and 360 days were 94.1%, 61.8%, and 32.4% and 97.1% (33/34), 76.9% (24/34), and 29.4% (10/34), respectively. PVS combined with 125I seed strand endovascular implantation followed by TACE is feasible for patients with HCC and PVTT. It resulted in appropriate survival and stent patency, with no procedure-related adverse effects.


Asunto(s)
Carcinoma Hepatocelular , Cateterismo , Quimioembolización Terapéutica/métodos , Radioisótopos de Yodo/administración & dosificación , Neoplasias Hepáticas , Vena Porta/cirugía , Stents , Trombosis de la Vena , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/terapia , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/terapia , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Trombosis de la Vena/mortalidad , Trombosis de la Vena/terapia
19.
Thyroid ; 26(5): 627-33, 2016 05.
Artículo en Inglés | MEDLINE | ID: mdl-26867063

RESUMEN

BACKGROUND: Antithyroid drug (ATD)-induced agranulocytosis is a rare but life-threatening disease. Clinical features of ATD-induced agranulocytosis and outcomes remain incompletely understood. METHOD: Patients with clinically diagnosed ATD-induced agranulocytosis were retrospectively studied, involving 9690 patients who were referred for radioiodine treatment during a 15-year period (2000-2015) in China. There were 114 cases of agranulocytosis attributable to ATD included, and their clinical characteristics and therapy outcomes were analyzed. RESULTS: The female-to-male ratio of ATD-induced agranulocytosis was 10.4:1. The mean age (±standard deviation) of the patients with ATD-induced agranulocytosis was 41.7 ± 12.3 years. The methimazole and propylthiouracil doses given at the onset were 22.9 ± 8.0 mg/day and 253.6 ± 177.5 mg/day, respectively. ATD-induced agranulocytosis occurred in 45.1%, 74.3%, and 88.5% of patients within 4, 8, and 12 weeks of the onset of ATD therapy, respectively. Fever (78.9%) and sore throat (72.8%) were the most common symptoms when agranulocytosis was diagnosed. The mean recovery time of agranulocytosis was 13.41 ± 7.14 days. Recovery time in the granulocyte colony-stimulating factor (G-CSF)-treated group (12.7 ± 6.0 days) did not differ from that in the group not treated with G-CSF (16.4 ± 10.6 days; p = 0.144). Treatment with (131)I was successful in 87/98 patients (88.8%). The success rate of (131)I was equivalent (p = 1.000) between the groups receiving methimazole (88.2%, 75/85) and propylthiouracil (92.3%, 12/13). CONCLUSIONS: This largest single-institution study in China shows that ATD-induced agranulocytosis tends to occur within the first 12 weeks after the onset of ATD therapy. For patients with ATD-induced agranulocytosis, G-CSF does not improve the recovery time of agranulocytosis, and (131)I is an optimal treatment approach.


Asunto(s)
Agranulocitosis/inducido químicamente , Antitiroideos/efectos adversos , Hipertiroidismo/tratamiento farmacológico , Metimazol/efectos adversos , Propiltiouracilo/efectos adversos , Adulto , Agranulocitosis/tratamiento farmacológico , Antitiroideos/uso terapéutico , China , Femenino , Factor Estimulante de Colonias de Granulocitos , Humanos , Masculino , Metimazol/uso terapéutico , Persona de Mediana Edad , Propiltiouracilo/uso terapéutico , Estudios Retrospectivos , Resultado del Tratamiento
20.
Int J Endocrinol ; 2015: 934726, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26060496

RESUMEN

Context. To report a patient with hyperthyroidism who developed concurrent occurrence of agranulocytosis and severe hepatotoxicity after taking methimazole (MMI). Case. A 51-year-old Chinese male was diagnosed as hyperthyroidism with normal white blood count and liver function. After 4 weeks' treatment with MMI 20 mg/d, it developed to agranulocytosis and severe cholestatic hepatotoxicity. The patient's symptoms and laboratory abnormalities disappeared after the withdrawal of MMI; his white blood count and liver function recover to normal in 2 weeks and 5 weeks, respectively. 296 MBq dose of (131)I was given to the patient 3 weeks after the withdrawal of MMI and his thyroid function was back to normal in 6 months. As we know through literature review, only 5 previous cases reported the synchronous ATD-induced agranulocytosis and severe hepatotoxicity in patients with hyperthyroidism. Methods. Review of the patient's clinical course. Literature review of cases of hyperthyroidism with agranulocytosis and severe hepatotoxicity demonstrated that these complications occurred after taking antithyroid drug (ATD). Conclusions. Patient with hyperthyroidism can have synchronous ATD-induced agranulocytosis and severe hepatotoxicity. This case is extremely rare, but the adverse effects with ATDs is clinically significant. The clinicians need to be careful about this and monitor biochemical of patients who take ATDs.

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