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1.
Clin Endocrinol (Oxf) ; 101(1): 32-41, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38691659

RESUMO

OBJECTIVE: Somatic variants in the ubiquitin-specific protease 8 (USP8) gene are the most common genetic cause of Cushing disease. We aimed to explore the relationship between clinical outcomes and USP8 status in a single centre. DESIGN, PATIENTS AND MEASUREMENTS: We investigated the USP8 status in 48 patients with pituitary corticotroph tumours. A median of 62 months of follow-up was conducted after surgery from November 2013 to January 2015. The clinical, biochemical and imaging features were collected and analysed. RESULTS: Seven USP8 variants (p.Ser718Pro, p.Ser719del, p.Pro720Arg, p.Pro720Gln, p.Ser718del, p.Ser718Phe, p.Lys713Arg) were identified in 24 patients (50%). USP8 variants showed a female predominance (100% vs. 75% in wild type [WT], p = .022). Patients with p.Ser719del showed an older age at surgery compared to patients with the p.Pro720Arg variant (47- vs. 24-year-olds, p = .033). Patients with p.Pro720Arg showed a higher rate of macroadenoma compared to patients harbouring the p.Ser718Pro variant (60% vs. 0%, p = .037). No significant differences were observed in serum and urinary cortisol and adrenocorticotropin hormone (ACTH) levels. Immediate surgical remission (79% vs. 75%) and long-term hormone remission (79% vs. 67%) were not significantly different between the two groups. The recurrence rate was 21% (4/19) in patients harbouring USP8 variants and 13% (2/16) in WT patients. Recurrence-free survival presented a tendency to be shorter in USP8-mutated individuals (76.7 vs. 109.2 months, p = .068). CONCLUSIONS: Somatic USP8 variants accounted for 50% of the genetic causes in this cohort with a significant female frequency. A long-term follow-up revealed a tendency toward shorter recurrence-free survival in USP8-mutant patients.


Assuntos
Adenoma Hipofisário Secretor de ACT , Endopeptidases , Complexos Endossomais de Distribuição Requeridos para Transporte , Tumores Neuroendócrinos , Ubiquitina Tiolesterase , Humanos , Ubiquitina Tiolesterase/genética , Feminino , Masculino , Complexos Endossomais de Distribuição Requeridos para Transporte/genética , Pessoa de Meia-Idade , Adulto , Prognóstico , Adenoma Hipofisário Secretor de ACT/genética , Adenoma Hipofisário Secretor de ACT/patologia , Adenoma Hipofisário Secretor de ACT/cirurgia , Endopeptidases/genética , Tumores Neuroendócrinos/genética , Tumores Neuroendócrinos/patologia , Mutação , Adulto Jovem , Hormônio Adrenocorticotrópico/sangue , Idoso , Adolescente
2.
J Clin Endocrinol Metab ; 109(9): e1741-e1749, 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-38164002

RESUMO

CONTEXT: Prolactinoma, the most common subtype of pituitary adenoma, is rare in children and adolescents. Clinical presentation and treatment outcomes of prolactinomas in this population have been evaluated insufficiently. OBJECTIVE: To summarize the clinical features, both medication and surgical outcomes of prolactinomas in children and adolescents in a large retrospective cohort from China. METHODS: A cohort of patients with prolactinomas aged ≤20 years at diagnosis between 2012 and 2021 in Peking Union Medical College Hospital were retrospectively analyzed. RESULTS: The cohort comprised 170 patients (115 females and 55 males, median age 16.6 years), with 20.0% (23/115) girls without menarche and 33.3% (18/54) boys in prepuberty. The median maximal diameter was 15.0 mm (61.2% macroadenomas and 4.6% giant adenomas), and the median baseline prolactin (PRL) level was 211.0 ng/mL. Larger sizes and higher PRL levels were observed in girls without menarche at diagnosis and in boys. Most girls presented with menstrual disturbance (86.7%), and boys were frequently bothered by headaches (42.6%), reduced height velocities (25.9%), and delayed puberty (18.2%). Dopamine agonists (DAs) were used as first-line treatment in 133 patients, and the resistance rate was 22.5% (25/111), independently associated with maximal tumor diameters (P = .035). Surgery was performed in 76 patients. Long-term surgical remission rates were 32.9% (25/76) overall, negatively associated with cavernous sinus invasion independently (P = .025), 59.4% (19/32) in noninvasive tumors (64.0% in 25 noninvasive macroadenomas), and 5.0% (1/20) in invasive tumors. CONCLUSION: Pediatric prolactinomas exhibited more severe clinical characteristics in boys and in patients diagnosed during earlier stages of pubertal developments. Given the overall efficacy of PRL normalization by medication and considerable surgical remission rate in noninvasive tumors, DAs remain the first-line recommendation for prolactinomas in children and adolescents, while surgery might be viable for noninvasive tumors.


Assuntos
Neoplasias Hipofisárias , Prolactinoma , Humanos , Prolactinoma/cirurgia , Prolactinoma/patologia , Prolactinoma/terapia , Prolactinoma/tratamento farmacológico , Prolactinoma/sangue , Prolactinoma/diagnóstico , Feminino , Adolescente , Masculino , Estudos Retrospectivos , Neoplasias Hipofisárias/cirurgia , Neoplasias Hipofisárias/patologia , Neoplasias Hipofisárias/terapia , Neoplasias Hipofisárias/diagnóstico , Neoplasias Hipofisárias/epidemiologia , Criança , Resultado do Tratamento , Adulto Jovem , Agonistas de Dopamina/uso terapêutico , China/epidemiologia , Prolactina/sangue , Seguimentos
3.
J Clin Endocrinol Metab ; 109(3): 802-814, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-37769631

RESUMO

OBJECTIVE: To describe the cerebrospinal fluid (CSF) metabolomic pattern of pituitary stalk lesions. METHODS: CSF was collected from patients with different pituitary stalk lesions treated at Peking Union Medical College Hospital: germ cell tumor (GCT, n = 27); hypophysitis (n = 10); and Langerhans cell histiocytosis (LCH) or Erdheim-Chester disease (ECD) (LCH + ECD, n = 10). The CSF metabolome profiles were characterized by liquid chromatography-mass spectrometry (LC-MS). RESULTS: There were 44 metabolites that significantly differed between patients with GCT and those with hypophysitis (P < .05). Between patients with GCT with CSF level of beta subunit of human chorionic gonadotrophin (ß-hCG) < 5 mIU/mL and those with hypophysitis, there were 15 differential metabolites (P < .05, fold change > 1.5 or < 1/1.5). All of the metabolites had an area under the curve (AUC) above 0.7. There were 9 metabolites that significantly differed between patients with GCT and those with LCH + ECD (P < .05) and 7 metabolites had significant differences between GCT (CSF ß-hCG < 5 mIU/mL) and LCH + ECD (P < .05, fold change > 1.5 or < 1/1.5). We found 6 metabolites that were significantly different between patients with hypophysitis and those with LCH + ECD (P < .05) and 5 of these had fold change more than 1.5 or less than 1/1.5. Three metabolites, 5-deoxydiplosporin, cloversaponin I, and phytosphingosine, showed excellent capabilities to differentiate the 3 disease categories. Furthermore, we identified 67 metabolites associated with clinical test results (ρ > 0.2, P < .05) and 29 metabolites showed strong correlation (ρ > 0.4, P < .05). CONCLUSION: Our study is the first to systematically investigate the metabolomics of CSF in different pituitary stalk lesions. CSF metabolomics is a useful strategy for biomarker discovery.


Assuntos
Doença de Erdheim-Chester , Histiocitose de Células de Langerhans , Hipofisite , Neoplasias Embrionárias de Células Germinativas , Humanos , Doença de Erdheim-Chester/complicações , Doença de Erdheim-Chester/tratamento farmacológico , Doença de Erdheim-Chester/patologia , Hipófise/patologia
4.
Front Endocrinol (Lausanne) ; 14: 1285477, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38093965

RESUMO

Objective: To summarize the clinical characteristics of 4 male prolactinoma patients with severe obesity. Methods: The clinical data of all the patients were retrospectively analyzed. Results: All the patients visited our hospital for severe obesity at the age of 16-30 years old with their body mass index (BMI) of 37.9-55.9 kg/m2. All the patients were obese since childhood, even at birth. Hyperprolactinemia (72.3-273.0 ng/ml) was found during the etiological screening of obesity and MRI revealed pituitary adenomas. Additionally, all of them had multiple obesity related complications, such as hyperinsulinemia and dyslipidemia. Treatment of dopamine agonists (DAs) effectively normalized their prolactin level and the pituitary MRI reexamination after 6 months of DAs treatment showed the shrinkage of the pituitary adenomas in 3 patients. Their weight also decreased in different degrees (2.70~19.03% lower than the baseline) with improved metabolic profiles. Conclusion: Serum prolactin level should be screened in obese patients, especially those with severe obesity.


Assuntos
Adenoma , Obesidade Mórbida , Neoplasias Hipofisárias , Prolactinoma , Recém-Nascido , Humanos , Masculino , Criança , Adolescente , Adulto Jovem , Adulto , Prolactinoma/complicações , Prolactinoma/tratamento farmacológico , Neoplasias Hipofisárias/complicações , Neoplasias Hipofisárias/tratamento farmacológico , Neoplasias Hipofisárias/diagnóstico , Agonistas de Dopamina/uso terapêutico , Prolactina/metabolismo , Obesidade Mórbida/complicações , Estudos Retrospectivos , Obesidade/complicações , Obesidade/tratamento farmacológico , Adenoma/tratamento farmacológico
5.
Front Pharmacol ; 14: 1277284, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38146464

RESUMO

Background: Non-small cell lung cancer (NSCLC) poses a serious threat to human health. Several clinical studies have reported the benefits of Chinese herbal injections (CHIs) in combination with docetaxel and cisplatin (DP). This multidimensional network meta-analysis aimed to investigate the preferred regimen of CHIs in combination with DP for the treatment of NSCLC. Methods: Multiple databases were searched to identify randomized controlled trials (RCTs) of CHIs for NSCLC from the database inception to 30 April 2023. Studies that met the inclusion criteria and exhibited good methodological quality were included. Data analysis was conducted using Stata 15.0 and R 4.2.1 software. An odds ratio (OR) was used as the effect size, and the surface under the cumulative ranking curve (SCURA) was employed to rank the evaluated treatments. Results: The network meta-analysis included 85 eligible RCTs, encompassing 6,580 patients and 11 CHIs. Astragalus Injection combined with DP was identified as the most effective regimen for improving the response rate (SUCRAs: 90.25%). Brucea Javanica Oil Milk Injection combined with DP proved most effective in ameliorating the quality of life (SUCRAs: 76.89%). Shenfu Injection combined with DP emerged as the most effective for enhancing CD3+ and CD4+ (SUCRAs: 93.75%, 88.50%). Kanglaite Injection combined with DP exhibited the best efficacy in improving CD8+ (SUCRAs: 88.96%). Brucea Javanica Oil Milk Injection combined with DP was the most potent regimen for enhancing CD4+/CD8+ (SUCRAs: 93.13%). Conclusion: CHIs in combination with DP outperformed DP alone in NSCLC patients. Astragalus Injection plus DP, Brucea Javanica Oil Milk Injection plus DP, Shenfu Injection plus DP, Kanglaite Injection plus DP, and Brucea Javanica Oil Milk Injection plus DP were significantly effective. However, further multicenter and well-designed RCTs are required to validate our findings.

6.
Orphanet J Rare Dis ; 18(1): 367, 2023 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-38017461

RESUMO

BACKGROUND: Pseudohypoparathyroidism type 1 (PHP1) is a rare disease featuring hypocalcemia and elevated PTH level. Though disturbed calcium and phosphorus metabolism under PTH resistant have been widely studied, glucolipid metabolism abnormalities observed in PHP1 patients have received little attention. The aim of this research is to explore the glucolipid metabolism features in a rather large cohort of PHP1 patient. In the current study, PHP1 patients and primary hyperparathyroidism patients as well as normal control were recruited for the investigation. Glucolipid metabolic indices as well as the level of four adipokines were examined. RESULTS: A total of 49 PHP1 patients, 64 PHPT patients and 30 healthy volunteers were enrolled. A trend of higher HOMA-ß index was found in PHP1 patients than normal controls (median 97.08% vs 68.19%, p = 0.060). Both the PHP1 and PHPT group presented with significantly lower TNFα level compared to normal controls (average 10.74 pg/ml and 12.53 pg/ml vs 15.47 pg/ml, p = 0.002 and 0.041, respectively). FGF21 level was significantly higher in PHPT group than in PHP1 group (median 255.74 pg/ml vs 167.46 pg/ml, p = 0.019). No significant difference in glucolipid metabolic indices and adipokines was found between PHP1A or PHP1B patients and normal controls, while overweight/obese PHP1 patients tended to have higher leptin than normal-BMI cases (p = 0.055). Multiple linear regression analysis showed BMI rather than PTH or HOMA-IR to be an independent variable of leptin in PHP1. CONCLUSION: Metabolic stress given upon especially overweight PHP1 patients may resulted in possible ß-cell compensation. Elevated TNFα may be related with hyper-PTH level regardless of calcium level.


Assuntos
Cálcio , Pseudo-Hipoparatireoidismo , Humanos , Leptina , Adipocinas/metabolismo , Fator de Necrose Tumoral alfa , Sobrepeso
7.
Pituitary ; 26(6): 675-685, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37847430

RESUMO

PURPOSE: Acromegalic patients with giant growth hormone-secreting pituitary adenomas (GHPAs) (≥ 40 mm) are relatively rare, and their clinical characteristics and treatment outcome data are limited. This study aims to analyze the clinical practice experience of giant GHPAs. METHODS: Sixty-seven acromegalic patients with giant GHPAs and 67 patients with macro GHPAs (10-39 mm), matched for age and gender from the same hospital during the same period, were retrospectively recruited. The clinical characteristics, treatment, and outcomes were analyzed. RESULTS: Enlargement of the extremities and facial features were the most common symptoms in most patients (92.5%). Compared with the macroadenoma group, more frequent visual impairment (86.6% vs. 25.4%, P < 0.001) and gonadal axis dysfunction (49.3% vs. 34.3%, P = 0.008), higher preoperative fasting GH, nadir GH after OGTT and IGF-1 levels, and a higher proportion of extrasellar tumor invasion were seen in the giant adenoma group. As the adenoma size increases, the total resection rate decreases, and postoperative complications and multimodal treatment strategies increase significantly. Fasting and nadir GH levels remained higher at 1 week postoperatively, and there were more surgical complications and cases of anterior hypopituitarism in the giant group. After a median follow-up of 36 months, 12 patients (36.4%) in the giant GHPA group and 17 (36.2%) in the macro GHPA group achieved biochemical remission. Other factors such as age of onset, age of diagnosis, delayed diagnosis time, metabolic complications, p53 positive rate, and Ki-67 index showed no significant difference between the two groups. CONCLUSIONS: With aggressive multimodal therapy, the biochemical remission rate of acromegalic patients with giant GHPAs is comparable to that of patients with macro adenoma. However, postoperative complications and hypopituitarism need to be closely monitored.


Assuntos
Acromegalia , Adenoma , Adenoma Hipofisário Secretor de Hormônio do Crescimento , Hipopituitarismo , Neoplasias Hipofisárias , Humanos , Adenoma Hipofisário Secretor de Hormônio do Crescimento/patologia , Acromegalia/tratamento farmacológico , Estudos Retrospectivos , Adenoma/complicações , Adenoma/cirurgia , Adenoma/metabolismo , Resultado do Tratamento , Complicações Pós-Operatórias , Neoplasias Hipofisárias/metabolismo , Fator de Crescimento Insulin-Like I
8.
Endocrine ; 82(2): 368-378, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37442901

RESUMO

PURPOSE: To evaluate the incidence of malignancies in acromegaly and to identify risk factors for newly-diagnostic cancers, especially the excessive growth hormone (GH) and insulin-like growth factor-1 (IGF-1). METHODS: A retrospective cohort including 1738 consecutive hospitalized patients with acromegaly in a single referral center between 2012 and 2020 (mean follow-up 4.3 years). A gender- and age-matched case-control study (280 patients from the cohort) was performed for risk factor analysis. RESULTS: One hundred thirteen malignancies (67 diagnosed after acromegaly) were observed. The overall newly-diagnostic cancer risk of acromegaly was higher than the general population (standardized incidence ratio (SIR) 2.81; 95% CI 2.18-3.57). The risk of thyroid cancer (n = 33, SIR 21.42; 95% CI 13.74-30.08) and colorectal cancer (n = 8, SIR 3.17; 95% CI 1.37-6.25) was elevated. In the overall cohort, IGF-1 (ULN: 1.27 vs. 0.94, p = 0.057), GH (1.30 vs. 1.00 ng/ml, p = 0.12), and disease-controlled rate (34.9% vs. 45.9%, p = 0.203) at the last visit did not reach significance between patients with and without post-diagnostic cancer. In the case-control study, GH (1.80 vs. 0.90 ng/ml, p = 0.018) and IGF-1 (ULN: 1.27 vs. 0.91, p = 0.003) at the last visit were higher in patients with post-diagnostic cancers, with a lower disease-controlled rate. Elder age was a risk factor for cancer. Other metabolic comorbidities and the size of pituitary tumors were similar. CONCLUSION: The risk of malignancies, especially thyroid cancer, was increased in patients with acromegaly in our center. More cancer screening should be considered when managing acromegaly, especially in patients with higher posttreatment GH and IGF-1.


Assuntos
Acromegalia , Hormônio do Crescimento Humano , Neoplasias Hipofisárias , Neoplasias da Glândula Tireoide , Humanos , Idoso , Acromegalia/complicações , Acromegalia/epidemiologia , Acromegalia/metabolismo , Estudos Retrospectivos , Fator de Crescimento Insulin-Like I/metabolismo , Estudos de Casos e Controles , Incidência , População do Leste Asiático , Neoplasias da Glândula Tireoide/epidemiologia , Neoplasias da Glândula Tireoide/etiologia , Fatores de Risco
9.
Neuroendocrinology ; 113(9): 971-986, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37253344

RESUMO

INTRODUCTION: Somatotroph pituitary neuroendocrine tumours (PitNETs) are characterized by complex and variable biological behaviours with unpredictable patterns of growth and invasiveness. The molecular mechanisms and reliable predictors of biological markers of invasiveness remain unknown. METHODS: Seventy-two acromegaly patients were consecutively enrolled. Data-independent acquisition-based proteomics and ingenuity pathway analysis were conducted between invasive and noninvasive somatotroph PitNETs. The expression of selected biomarkers was verified in PitNET tissue, and its correlation with various clinical indicators and outcomes of these tumours was assessed. The invasive phenotypes of GH3 cells were validated in vitro. RESULTS: Patients with invasive somatotroph PitNETs were significantly younger at onset and diagnosis, with significantly higher secretion and faster growth and a lower long-term biochemical response rate than patients with noninvasive somatotroph PitNETs. Proteomic data were evaluated in a consecutively collected sample of 19 (10 invasive and 9 noninvasive somatotroph PitNETs) tumours and indicated a distinct proteomic pattern. The enriched and important pathways included IL-4, PDGF, PTEN, VEGF, PI3K/AKT, FAK, and other pathways that were significantly associated with tumour proliferation, migration, and invasion. High cathepsin Z (CTSZ) expression was found in invasive somatotroph PitNETs and significantly positively correlated with parameters of tumour invasion and growth. In Ctsz-overexpressing GH3 cells, cell proliferation, invasion, and migration were consequently increased. CONCLUSION: It is more difficult for patients with invasive somatotroph PitNETs to achieve remission than those with noninvasive somatotroph PitNETs, and proteomic data analysis has revealed the high expression of CTSZ as a contributing factor to invasive transformation and poor prognosis in somatotroph PitNETs for the first time.


Assuntos
Tumores Neuroendócrinos , Neoplasias Hipofisárias , Somatotrofos , Humanos , Somatotrofos/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteômica , Neoplasias Hipofisárias/patologia , Tumores Neuroendócrinos/patologia
10.
Phytother Res ; 2023 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-36943416

RESUMO

Glucose-dependent insulinotropic polypeptide (GIP) is a gastrointestinal hormone secreted by K cells in the small intestine and is considered an obesity-promoting factor. In this study, we systematically investigated the anti-obesity effects of intragastric safflower yellow (SY)/hydroxysafflor yellow A (HSYA) and the underlying mechanism for the first time. Our results showed that intragastric SY/HSYA, rather than an intraperitoneal injection, notably decreased serum GIP levels and GIP staining in the small intestine in diet-induced obese (DIO) mice. Moreover, intragastric SY/HSYA was also first found to significantly suppress GIP receptor (GIPR) signaling in both the hypothalamus and subcutaneous White adipose tissue. Our study is the first to show that intragastric SY/HSYA obviously reduced food intake and body weight gain in leptin sensitivity experiments and decreased serum leptin levels in DIO mice. Further experiments demonstrated that SY treatment also significantly reduced leptin levels, whereas the inhibitory effect of SY on leptin levels was reversed by activating GIPR in 3 T3-L1 adipocytes. In addition, intragastric SY/HSYA had already significantly reduced serum GIP levels and GIPR expression before the serum leptin levels were notably changed in high-fat-diet-fed mice. These findings suggested that intragastric SY/HSYA may alleviate diet-induced obesity in mice by ameliorating hyperleptinemia via dual inhibition of the GIP-GIPR axis.

11.
Clin Endocrinol (Oxf) ; 98(1): 59-67, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35978545

RESUMO

OBJECTIVE: Hypothalamic dysfunction is characterized by complex aetiologies, multiple forms of onset and various clinical symptoms. This study aims to explore the clinical and metabolic characteristics of hypothalamic dysfunction in Chinese children and adolescents. DESIGN: This study is a single-centre, retrospective study that covers patients from 1989 to 2019. PATIENTS: We included 40 children and adolescents with hypothalamic dysfunction from our medical centre in Beijing, China. RESULTS: Intracranial tumour (37.5%) was the most common aetiology of children and adolescents with hypothalamic dysfunction, especially germ cell tumours, hypopituitarism (82.5%), weight gain (72.5%) and central diabetes insipidus (70.0%) were the most common symptoms in these patients. Furthermore, serum alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transpeptidase, uric acid, total cholesterol, triglycerides and low-density lipoprotein cholesterol was significantly higher in hypothalamic dysfunction patients than sex- and age-matched controls and sex, age and body mass index (BMI)-matched controls (all p < 0.05). However, albumin and high-density lipoprotein cholesterol were lower (p< 0.05). Moreover, 95% (38/40) of the patients had metabolic diseases. In addition, the incidence of dyslipidaemia and hyperuricemia in children and adolescents with hypothalamic dysfunction was significantly higher than both sex- and age-matched controls and sex-, age- and BMI-matched controls (both p < 0.05) as well. CONCLUSIONS: Intracranial tumour was the most common aetiology in children and adolescents with hypothalamic dysfunction. In addition, these patients presented a worse metabolic profile on average than healthy patients.


Assuntos
Colesterol , Criança , Humanos , Adolescente , Estudos Retrospectivos , China/epidemiologia
12.
Appl Radiat Isot ; 192: 110567, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36459899

RESUMO

PURPOSE: To investigate the error detectability limitations of an EPID-based 3D in vivo dosimetry verification system for lung stereotactic body radiation therapy (SBRT). METHODS: Thirty errors were intentionally introduced, consisting of dynamic and constant machine errors, to simulate the possible errors that may occur during delivery. The dynamic errors included errors in the output, gantry angle and MLC positions related to gantry inertial and gravitational effects, while the constant errors included errors in the collimator angle, jaw positions, central leaf positions, setup shift and thickness to simulate patient weight loss. These error plans were delivered to a CIRS phantom using the SBRT technique for lung cancer. Following irradiation of these error plans, the dose distribution was reconstructed using iViewDose™ and compared with the no error plan. RESULTS: All errors caused by the central leaf positions, dynamic MLC errors, Jaw inwards movements, setup shifts and patient anatomical changes were successfully detected. However, dynamic gantry angle and collimator angle errors were not detected in the lung case due to the rotation-symmetric target shape. The results showed that the γmean and γpassrate indicators can detect 13 (81.3%) and 14 (87.5%) of the 16 errors respectively without including the gantry angle error, collimator angle error and output error. CONCLUSIONS: In summary, iViewDose™ is an appropriate approach for detecting most types of clinical errors for lung SBRT. However, the phantom results also showed some detectability limitations of the system in terms of dynamic gantry angle and constant collimator angle errors.


Assuntos
Neoplasias Pulmonares , Radiocirurgia , Radioterapia de Intensidade Modulada , Humanos , Radioterapia de Intensidade Modulada/métodos , Pulmão , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/radioterapia , Planejamento da Radioterapia Assistida por Computador , Dosagem Radioterapêutica , Radiometria
13.
Nutr Diabetes ; 12(1): 51, 2022 12 23.
Artigo em Inglês | MEDLINE | ID: mdl-36564376

RESUMO

BACKGROUND: This study aimed to investigate the effect of aging on glucose metabolism improvement after Roux-en-Y gastric bypass (RYGB) in rat models with type 2 diabetes mellitus (T2DM). METHODS: Twenty aged Goto-Kakizaki rats were randomly assigned into RYGB-A group and sham RYGB (SR-A) group, and 10 adult Goto-Kakizaki rats also accept RYGB procedures (RYGB-Y). Glucose metabolism, resting energy expenditure (REE), glucagon-like peptide-1 (GLP-1) and total bile acid level were measured. RESULTS: RYGB could significantly improve glucose metabolism in aged diabetic rats. The fasting blood glucose level in the RYGB-A group decreased from 15.8 ± 1.1 mmol/l before surgery to 12.3 ± 1.5 mmol/l 16 weeks after surgery (P < 0.01), and the AUCOGTT value decreased from 2603.9 ± 155.4 (mmol/l) min to 2299.9 ± 252.8 (mmol/l) min (P = 0.08). The decrease range of fasting blood glucose in the RYGB-A group was less than that in the RYGB-Y group (20.5% ± 6.5% vs. 40.6% ± 10.6%, P < 0.01), so is the decrease range of AUCOGTT value (11.6% ± 14.8% vs. 38.5% ± 8.3%, P < 0.01). Moreover, at the 16th postoperative week, the increase range of REE of the RYGB-A group was lower than that of the RYGB-Y group (15.3% ± 11.1% vs. 29.1% ± 12.1%, P = 0.04). The increased range of bile acid of the RYGB-A group was less than that of the RYGB-Y group (80.2 ± 59.3 % vs.212.3 ± 139.0 %, P < 0.01). The GLP-1 level of the RYGB-A group was less than that of the RYGB-Y group (12.8 ± 3.9 pmol/L vs. 18.7 ± 5.6 pmol/L, P = 0.02). There was no significant difference between the RYGB-A group and the RYGB-Y group in the level of the triiodothyronine level. CONCLUSIONS: RYGB could induce a glucose metabolism improvement in aged diabetic rats, and aging might moderate the effect of RYGB.


Assuntos
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Derivação Gástrica , Ratos , Animais , Derivação Gástrica/métodos , Glicemia/metabolismo , Diabetes Mellitus Experimental/metabolismo , Ácidos e Sais Biliares , Peptídeo 1 Semelhante ao Glucagon , Envelhecimento
14.
Basic Clin Pharmacol Toxicol ; 131(3): 174-188, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35688794

RESUMO

Somatostatin and its analogues, known as somatostatin receptor ligands (SRLs), have been reported to attenuate weight gain in some clinical settings. However, their direct effects on preadipocytes are barely investigated. Therefore, this study aimed to evaluate the influence of SRLs on preadipocytes and to further explore the potential mechanisms. Cell Counting Kit-8 assay, Oil Red O staining, triglyceride contents measurements, quantitative polymerase chain reaction (qPCR) and western blot were used to investigate the effects of SRLs on preadipocytes. We found that three SRLs (octreotide, TT232 and pasireotide) inhibited cell viability after 8-48 h but not 4 h. Further western blot results showed that they significantly suppressed activation of PI3K/Akt pathway. Besides, lipid accumulation was also significantly inhibited by these SRLs. Moreover, mRNA levels of some critical adipogenic markers, including Pparg, Cebpa, Fasn, Fabp4, Acaca and Lpl, were downregulated by the treatments of all these SRLs. Consistently, the protein expression of peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer binding protein α (C/EBPα) and fatty acid synthase (FAS) was also suppressed by SRLs. SRLs inhibit the proliferation and lipogenesis in preadipocytes. Their inhibitory effects on cell proliferation may be mediated by the downregulated PI3K/Akt pathway, and the suppressive actions on lipogenesis may be related to the decreased PPARγ and C/EBPα expression.


Assuntos
Ligantes , Lipogênese , Receptores de Somatostatina , Somatostatina , Células 3T3-L1/efeitos dos fármacos , Células 3T3-L1/metabolismo , Adipócitos/efeitos dos fármacos , Adipócitos/metabolismo , Animais , Proteína alfa Estimuladora de Ligação a CCAAT/genética , Proteína alfa Estimuladora de Ligação a CCAAT/metabolismo , Diferenciação Celular , Proliferação de Células , Lipogênese/efeitos dos fármacos , Lipogênese/fisiologia , Camundongos , PPAR gama/genética , PPAR gama/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Receptores de Somatostatina/metabolismo , Somatostatina/análogos & derivados , Somatostatina/farmacologia
15.
BMC Endocr Disord ; 22(1): 152, 2022 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-35668434

RESUMO

BACKGROUND: Cushing's disease (CD) is rare in pediatric patients. It is characterized by elevated plasma adrenocorticotropic hormone (ACTH) from pituitary adenomas, with damage to multiple systems and development. In recent years, genetic studies have shed light on the etiology and several mutations have been identified in patients with CD. CASE PRESENTATION: A girl presented at the age of 10 years and 9 months with facial plethora, hirsutism and acne. Her vision and eye movements were impaired. A quick weight gain and slow growth were also observed. Physical examination revealed central obesity, moon face, buffalo hump, supra-clavicular fat pads and bruising. Her plasma ACTH level ranged between 118 and 151 pg/ml, and sella enhanced MRI showed a giant pituitary tumor of 51.8 × 29.3 × 14.0 mm. Transsphenoidal pituitary debulk adenomectomy was performed and immunohistochemical staining confirmed an ACTH-secreting adenoma. Genetic analysis identified a novel germline GPR101 (p.G169R) and a somatic USP8 (p. S719del) mutation. They were hypothesized to impact tumor growth and function, respectively. CONCLUSIONS: We reported a rare case of pediatric giant pituitary ACTH adenoma and pointed out that unusual concurrent mutations might contribute to its early onset and large volume.


Assuntos
Adenoma Hipofisário Secretor de ACT , Adenoma , Hipersecreção Hipofisária de ACTH , Neoplasias Hipofisárias , Adenoma Hipofisário Secretor de ACT/diagnóstico , Adenoma Hipofisário Secretor de ACT/genética , Adenoma Hipofisário Secretor de ACT/cirurgia , Adenoma/diagnóstico , Adenoma/genética , Adenoma/cirurgia , Hormônio Adrenocorticotrópico , Endopeptidases/genética , Complexos Endossomais de Distribuição Requeridos para Transporte/genética , Feminino , Células Germinativas/patologia , Humanos , Mutação , Hipersecreção Hipofisária de ACTH/diagnóstico , Neoplasias Hipofisárias/genética , Neoplasias Hipofisárias/cirurgia , Receptores Acoplados a Proteínas G , Ubiquitina Tiolesterase/genética
16.
Horm Metab Res ; 54(7): 458-471, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35512849

RESUMO

Aim To determine the antiobesity effect and safety of glucagon-like peptide-1 receptor agonist (GLP-1RA) including liraglutide, exenatide and semaglutide treatment in overweight/obese patients without diabetes. The random-effect model was used to pool data extracted from included literatures. The weighted mean difference (WMD), odds ratio and 95% confidence interval (CI) were used to present the meta-analysis results (PROSPERO registration number: CRD 42020173199). The sources of intertrial heterogeneity, bias and the robustness of results were evaluated by subgroup analysis, sensitivity analysis and regression analysis, respectively. A total of 24 RCTs were recruited in the present analysis which included 5867 patients. The results showed that the treatment of overweight/obese patients without diabetes with GLP-1RAs including liraglutide, exenatide and semaglutide significantly achieved greater weight loss than placebo [WMD=-5.39, 95% CI (-6.82, -3.96)] and metformin [WMD=-5.46, 95% CI (-5.87, -5.05)]. The subgroup analysis showed that semaglutide displayed the most obvious antiobesity effect in terms of weight loss, the reduction of body mass index (BMI) and waist circumference (WC). However, GLP-1RAs treatments had more gastrointestinal adverse events (such as nausea and vomiting) than placebo and Met. The subgroup analysis also represented that semaglutide displayed the lowest risk of gastrointestinal adverse events among three kinds of GLP-1RAs. Our meta-analysis demonstrated that GLP-1RA had a superior antiobesity effect than placebo/Met in overweight/obese patients without diabetes in terms of body weight, BMI, and WC, especially for semaglutide, which had more obvious antiobesity effect and lower GI adverse events than liraglutide and exenatide.


Assuntos
Fármacos Antiobesidade , Exenatida , Receptor do Peptídeo Semelhante ao Glucagon 1 , Peptídeos Semelhantes ao Glucagon , Hipoglicemiantes , Liraglutida , Obesidade , Fármacos Antiobesidade/efeitos adversos , Fármacos Antiobesidade/uso terapêutico , Exenatida/efeitos adversos , Exenatida/uso terapêutico , Receptor do Peptídeo Semelhante ao Glucagon 1/agonistas , Peptídeos Semelhantes ao Glucagon/efeitos adversos , Peptídeos Semelhantes ao Glucagon/uso terapêutico , Humanos , Hipoglicemiantes/efeitos adversos , Hipoglicemiantes/uso terapêutico , Liraglutida/efeitos adversos , Liraglutida/uso terapêutico , Obesidade/tratamento farmacológico , Redução de Peso
17.
BMC Endocr Disord ; 22(1): 97, 2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35410236

RESUMO

BACKGROUND: Recently, side effects from Dopamine Receptor Agonist Drugs (DAs) in treating pituitary prolactinoma have raised widespread concern. This study explores the incidence and influencing factors of DAs-related side effects in Chinese prolactinoma patients. METHODS: A cross-sectional study was conducted. 51 prolactinoma patients treated with DAs, 12 prolactinoma or pituitary microadenoma patients without DAs treatment, and 33 healthy controls were included. The Barratt impulsivity scale-11, Patient Health Questionnaire 9, and the ICD screening questionnaire were all used to evaluate the psychological and physical side effects of DAs. Clinical data of all subjects were collected from their electronic medical records. RESULTS: The incidence of ICDs in the treated group, the untreated group, and control group was 9.8% (5/51), 16.7% (2/12), and 9.1% (3/33), respectively. In the treated group in particular, there were 1 patient (2%, 1/51), 2 patients (3.9%, 2/51), and 2 patients (3.9%, 2/51) with positive screening for punding, compulsive shopping, and hypersexuality, respectively. In terms of depression, the incidence of "minimal", "mild" and "moderate" depression in the treated group was 62.8% (32/51), 25.5% (13/51), and 5.9% (3/51), respectively. The incidence of physical symptoms was 51.0% (26/51) in the treated group and gastrointestinal symptoms were the most common symptoms (33.3%, 17/51). In addition, we found that the various parameters of DAs treatment had no association with the occurrence of physical symptoms or ICDs (all P > 0.05). CONCLUSIONS: Chinese prolactinoma patients treated with DAs had a lower incidence of ICDs (9.8%), while gastrointestinal symptoms were common. In this way, more attention should be paid to side effects, especially physical symptoms, in Chinese prolactinoma patients with DAs therapy during follow-up regardless of dose.


Assuntos
Transtornos Disruptivos, de Controle do Impulso e da Conduta , Neoplasias Hipofisárias , Prolactinoma , China/epidemiologia , Estudos Transversais , Transtornos Disruptivos, de Controle do Impulso e da Conduta/induzido quimicamente , Transtornos Disruptivos, de Controle do Impulso e da Conduta/tratamento farmacológico , Agonistas de Dopamina/efeitos adversos , Humanos , Neoplasias Hipofisárias/tratamento farmacológico , Neoplasias Hipofisárias/epidemiologia , Prolactinoma/tratamento farmacológico , Prolactinoma/epidemiologia
18.
Artigo em Inglês | MEDLINE | ID: mdl-35341150

RESUMO

Introduction: The objective of our study is to explore the potential active ingredients and activity of Ginseng and Astragalus decoction (GAD) in the treatment of malignant pleural effusion (MPE) by using network pharmacology and molecular docking technologies. Methods: The active ingredients and corresponding targets of Ginseng and Astragalus were extracted from the Traditional Chinese Medicine System Pharmacology Database and Analysis Platform. The relevant targets of malignant pleural effusion (MPE) were searched in the disease databases. Overlapping targets of Ginseng and Astragalus and the corresponding targets of MPE were obtained to define the effective target of GAD for the treatment of MPE. The STRING database was applied to construct a predicted protein-protein interaction network for intersected targets. The Cytoscape software was used to screen key targets with a therapeutic potential. Using the Metascape database, we performed Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional enrichment analysis on the targets identified in the study. PyMOL and AutoDock Vina were used to molecularly dock the selected key components to their respective key targets for MPE treatment. Results: The core target network revealed 22 main active ingredients, 26 main targets, and 16 signaling pathways in GAD. Molecular docking revealed 6 targets (AKT serine/threonine kinase 1, intercellular adhesion molecule, Jun proto-oncogene, peroxisome proliferator activated receptor gamma, prostaglandin-endoperoxide synthase 2, and tumor necrosis factor) that could partially dock with kaempferol, frutinone A, ginsenoside RH2, formononetin, and quercetin. Conclusions: Several components, targets, and signaling pathways of GAD contribute to the treatment of MPE, which suggests a rationale for further investigation on GAD's active molecule and mechanism of action in the clinical application of MPE.

19.
Pituitary ; 25(3): 454-467, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35138520

RESUMO

PURPOSE: To summary the clinical features of premenopausal women with functioning gonadotroph adenomas (FGAs) and preliminarily explore their molecular characterization. METHODS: 12 premenopausal females with FGAs in our center were retrospectively analyzed. Previously reported cases were also summarized. The patients were clinically divided into FSH- or LH-predominant types according to their preoperative serum FSH/LH ratio. The expressions of related genes in the tumor tissues of female FGAs, non-functioning gonadotroph adenomas (NFGAs), and silent corticotropin adenomas were evaluated by RT-qPCR. RESULTS: Of all the 12 patients with FGAs from our center, 11 (91.7%) were diagnosed as FSH-predominant type, and they all had menstrual disorders, including 9 with spontaneous ovarian hyperstimulation syndrome (sOHSS). Their hormonal profiles showed non-suppressed FSH (12.45 ± 7.34 IU/L) with hyperestrogenemia [median estradiol level 1353.0 pg/mL (636.0, 3535.0)]. The other patient (8.3%) with LH-predominant type mainly manifested with infertility and sustained elevated serum LH without FSH or estradiol increasing. 65 premenopausal FGAs patients were systematic reviewed. 60 patients (92.3%) were FSH-predominant type, including 86.7% presented with menstrual disorders, 16.7% reported infertility, and 98.2% (55/56) showed sOHSS. No sOHSS or hyperestrogenemia were found in the 5 patients (7.7%) with LH-predominant type. Pituitary imaging data revealed macroadenomas and microadenomas accounted for 89.2% and 10.8%, respectively. Of 63 patients (96.9%) who underwent pituitary adenoma resection, 77.8% had complete tumor resection and no recurrence at the last follow-up. The relative expressions of KISS1 mRNA were significantly higher in FGA group than in NFGA group (p = 0.018), and significantly positively correlated with the preoperative serum estradiol levels (p = 0.004). CONCLUSIONS: Different clinical features were observed in premenopausal women with FGAs of FSH- or LH-predominant types. The elevated KISS1 expression in tumor tissues might involve in the secretion function of FGAs.


Assuntos
Adenoma , Gonadotrofos , Infertilidade , Neoplasias Hipofisárias , Adenoma/patologia , Estradiol/metabolismo , Feminino , Hormônio Foliculoestimulante/metabolismo , Gonadotrofos/metabolismo , Gonadotrofos/patologia , Humanos , Infertilidade/metabolismo , Infertilidade/patologia , Kisspeptinas/metabolismo , Hormônio Luteinizante/metabolismo , Neoplasias Hipofisárias/patologia , Estudos Retrospectivos
20.
Horm Metab Res ; 54(1): 12-19, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34986495

RESUMO

The aim of the work was to explore the correlation between thyroid hormones and coronary atherosclerotic severity. This cross-sectional study included 340 euthyroid patients who underwent diagnostic coronary artery angiography (CAG). Gensini Score (GS) was applied to assess the severity of coronary atherosclerosis. Thyroid hormones and routine biochemical parameters were measured. The associations between thyroid hormones and coronary atherosclerosis severity were analyzed. Thyroid hormones levels or parameters were taken as both continuous variables and tertiles into analysis, and the lowest tertile was usually used as the reference (OR=1) for medium and highest tertiles. Free triiodothyronine (FT3) level was associated with GS≥22 (Median GS) in Model I adjusted for age and sex [Continuous: OR=0.46, 95% CI (0.23, 0.92), p=0.029; Tertile 3: OR=0.54, 95% CI (0.30, 0.97), p=0.038], and Model II adjusted for all known risk factors of coronary artery disease (CAD) [Continuous: OR=0.44, 95% CI (0.20, 0.95), p=0.036; Tertile 3: OR=0.49, 95% CI (0.25, 0.96), p=0.039]. Subjects with highest tertile of FT3 to free thyroxine (FT4) ratio (FT3/FT4 ratio) appeared to have the remarkably decreased risk of CAD in both Non-adjusted Model [OR=0.49, 95% CI (0.24, 0.98), p=0.044] and Model I [OR=0.45, 95% CI (0.22, 0.93), p=0.031]. Higher FT3 level within normal range was independently and negatively associated with severity of coronary atherosclerosis. Besides, FT3/FT4 ratio was remarkably correlated with the prevalence of CAD in euthyroid population.


Assuntos
Aterosclerose/sangue , Aterosclerose/patologia , Síndromes do Eutireóideo Doente/sangue , Síndromes do Eutireóideo Doente/patologia , Índice de Gravidade de Doença , Hormônios Tireóideos/sangue , Aterosclerose/diagnóstico , Feminino , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Análise de Regressão , Medição de Risco , Fatores de Risco , Tri-Iodotironina/sangue
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