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1.
Anal Chem ; 96(5): 1861-1871, 2024 02 06.
Artigo em Inglês | MEDLINE | ID: mdl-38277502

RESUMO

Cow milk contains essential nutrients for humans, and its bulk composition is usually analyzed using Fourier transform infrared spectroscopy. The higher sensitivity of nuclear magnetic resonance (NMR) spectroscopy can augment the extractible qualitative and quantitative information from milk to nearly 60 compounds, enabling us to monitor the health of cows and milk quality. Proton (1H) NMR spectroscopy produces complex spectra that require expert knowledge for identifying and quantifying metabolites. Therefore, an efficient and reproducible methodology is required to transform complex milk 1H NMR spectra into annotated and quantified milk metabolome data. In this study, standard operating procedures for screening the milk metabolome using 1H NMR spectra are developed. A chemical shift library of 63 milk metabolites was established and implemented in the open-access Signature Mapping (SigMa) software. SigMa is a spectral analysis tool that transforms 1H NMR spectra into a quantitative metabolite table. The applicability of the proposed methodology to whole milk, skim milk, and ultrafiltered milk is demonstrated, and the method is tested on ultrafiltered colostrum samples from dairy cows (n = 88) to evaluate whether metabolic changes in colostrum may reflect the metabolic status of cows.


Assuntos
Líquidos Corporais , Leite , Humanos , Feminino , Gravidez , Bovinos , Animais , Leite/química , Colostro , Espectroscopia de Prótons por Ressonância Magnética/métodos , Prótons , Bibliotecas de Moléculas Pequenas/análise , Lactação
2.
Zhonghua Yu Fang Yi Xue Za Zhi ; 58: 1-7, 2024 Feb 23.
Artigo em Zh | MEDLINE | ID: mdl-38403282

RESUMO

Objective: To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023. Methods: The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed. Results: A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M (Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant (P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age (P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion: Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.

3.
Zhonghua Yi Xue Za Zhi ; 103(26): 1993-1999, 2023 Jul 11.
Artigo em Zh | MEDLINE | ID: mdl-37438081

RESUMO

Objective: To investigate the effects of high risk of ovarian hyperstimulation syndrome (OHSS) and duration of embryo cryopreservation on perinatal outcomes of the first frozen-thawed cycle after whole embryo cryopreservation. Methods: The clinical data of 1 804 patients who underwent the first frozen-thawed cycle after whole embryo cryopreservation and achieved singleton live births in the Reproductive Center of the Third Affiliated Hospital of Zhengzhou University from January 2016 to June 2021 were retrospectively analyzed. According to whether there was high risk of OHSS in the oocyte retrieval cycle, the patients were divided into high-risk group (n=790) and non-high-risk group (n=1 014). The baseline data and perinatal outcomes were compared between the two groups. Multivariate linear regression was applied to analyze the relative factors affecting neonatal weight. And the high-risk group was divided into three subgroups according to different cryopreservation time: the embryos of 96 cycles with a cryopreservation time less than 60 days were defined as group A; the embryos of 587 cycles with a cryopreservation time around 60 to 120 days were defined as group B; the embryos of 107 cycles with a cryopreservation time more than 120 days were defined as group C. The perinatal outcomes were compared among the three groups. The measurement data in this study were represented byï¼»M(Q1,Q3)]. Results: The female age in the high-risk group was 30.0 (27.0, 32.0) years old, which was lower than that in the non-high-risk group 31.0 (29.0, 34.0) (P<0.001). The male age in high-risk group was 30.0 (28.0, 33.0), lower than that in non-high-risk group 32.0 (29.0, 35.0) (P<0.001). The birth weight of high-risk group [3 500.0 (3 200.0,3 800.0) g] was higher than that of control group [3 400.0 (3 150.0,3 800.0) g](P=0.045). Multivariate linear regression analysis showed that female BMI was correlated with neonatal weight, ß (95%CI) was 15.37(8.33, 22.41) (P<0.001), and the high risk of OHSS was not correlated with neonatal weight, ß (95%CI) was 19.40 (-38.07, 76.87) (P=0.508). There was significant difference in the incidence of low birth weight and very low birth weight among groups A, B and C (all P values<0.05), and the incidence of low birth weight and very low birth weight in group C was higher than that in group B (all P values<0.017). Conclusions: The risk of adverse perinatal outcomes in high-risk OHSS patients who underwent the first frozen-thawed cycle after whole embryo cryopreservation was not increased. However, prolonged cryopreservation of embryos may lead to increased risk of low birth weight and very low birth weight.


Assuntos
Nascido Vivo , Síndrome de Hiperestimulação Ovariana , Feminino , Masculino , Gravidez , Humanos , Peso ao Nascer , Estudos Retrospectivos , Transferência Embrionária
4.
Zhonghua Yi Xue Za Zhi ; 103(30): 2335-2341, 2023 Aug 15.
Artigo em Zh | MEDLINE | ID: mdl-37574832

RESUMO

Objective: To investigate the effect of preimplantation genetic testing for aneuploidies (PGT-A) on pregnancy outcome and perinatal outcome of single live birth in patients with unexplained recurrent spontaneous abortion (URSA). Methods: The clinical data of 351 cycles of the first transfer of a blastocyst through whole embryo freezing in the Reproductive Center of the Third Affiliated Hospital of Zhengzhou University from 2019 to 2021 were retrospectively analyzed. According to whether PGT-A was performed before the transfer, the patients were divided into two groups: the PGT-A group (160 cycles) and the control group (191 cycles) were treated with in vitro fertilization/intracytoplasmic sperm microinjection (IVF/ICSI). To adjust for confounding factors, propensity score matching (PSM) was carried out in a 1∶1 ratio between the two groups of patients. After matching, 98 patients in the PGT-A group and 98 patients in the control group were compared for pregnancy outcome and perinatal outcome of singleton live births. Results: Before PSM, the female age in the PGT-A group was (33.6±4.0) years, lower than that in the control group (34.5±4.5) years (P=0.049). Male age in the PGT-A group was (33.6±4.1) years, lower than that in the control group (35.3±5.1) years (P<0.001). There were statistically significant differences between the two groups in infertility factors, female body mass index (BMI), years of infertility, number of spontaneous abortions, basal follicle stimulating hormone (FSH), endometrial thickness on the day of transfer and the percentage of high-quality blastocysts (all P values<0.05); After PSM, there was a statistically significant difference in fertilization methods and infertility factors between the two groups (P<0.05), while other differences were not statistically significant (all P values>0.05); There were statistically significant differences between the two groups in implant rate [63.3% (62 cycles) vs. 49.0% (48 cycles), P=0.044], clinical pregnancy rate [63.3% (62 cycles) vs. 49.0% (48 cycles), P=0.044], and live birth rate [42.9% (42 cycles) vs. 28.6% (28 cycles), P=0.037]. There was no statistically significant difference in perinatal outcomes between the PGT-A group and the control group in obtaining single birth live births (P>0.05). Conclusion: Compared with conventional IVF/ICSI assisted pregnancy, PGT-A assisted pregnancy significantly improves implantation rate, clinical pregnancy rate, and live birth rate in URSA patients. PGT-A improves the pregnancy outcomes in URSA patients but not perinatal outcomes in patients with singleton live births.


Assuntos
Aborto Habitual , Aborto Espontâneo , Infertilidade , Diagnóstico Pré-Implantação , Gravidez , Humanos , Masculino , Feminino , Adulto , Resultado da Gravidez , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas , Sêmen , Testes Genéticos/métodos , Fertilização in vitro/métodos , Taxa de Gravidez , Infertilidade/terapia , Aneuploidia , Diagnóstico Pré-Implantação/métodos
5.
Neth Heart J ; 30(4): 212-226, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33052577

RESUMO

BACKGROUND: The integration of computed tomography (CT)-derived left ventricular outflow tract area into the echocardiography-derived continuity equation results in the reclassification of a significant proportion of patients with severe aortic stenosis (AS) into moderate AS based on aortic valve area indexed to body surface area determined by fusion imaging (fusion AVAi). The aim of this study was to evaluate AS severity by a fusion imaging technique in patients with low-gradient AS and to compare the clinical impact of reclassified moderate AS versus severe AS. METHODS: We included 359 consecutive patients who underwent transcatheter aortic valve implantation for low-gradient, severe AS at two academic institutions and created a joint database. The primary endpoint was a composite of all-cause mortality and rehospitalisations for heart failure at 1 year. RESULTS: Overall, 35% of the population (n = 126) were reclassified to moderate AS [median fusion AVAi 0.70 (interquartile range, IQR 0.65-0.80) cm2/m2] and severe AS was retained as the classification in 65% [median fusion AVAi 0.49 (IQR 0.43-0.54) cm2/m2]. Lower body mass index, higher logistic EuroSCORE and larger aortic dimensions characterised patients reclassified to moderate AS. Overall, 57% of patients had a left ventricular ejection fraction (LVEF) <50%. Clinical outcome was similar in patients with reclassified moderate or severe AS. Among patients reclassified to moderate AS, non-cardiac mortality was higher in those with LVEF <50% than in those with LVEF ≥50% (log-rank p = 0.029). CONCLUSIONS: The integration of CT and transthoracic echocardiography to obtain fusion AVAi led to the reclassification of one third of patients with low-gradient AS to moderate AS. Reclassification did not affect clinical outcome, although patients reclassified to moderate AS with a LVEF <50% had worse outcomes owing to excess non-cardiac mortality.

6.
J Endocrinol Invest ; 44(5): 1001-1010, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32816248

RESUMO

PURPOSE: The aim of the present study was to describe the distributions of serum thyroid- stimulating hormone (TSH) levels in thyroid disease-free adults from areas with different iodine levels in China. Meanwhile, we aimed to evaluate the influence of age and gender on the distribution of TSH, assess the relationship between concentrations of TSH and free thyroxine (FT4), and analyze the factors that may affect TSH levels. METHODS: 2020 adults were included from April 2016 to June 2019. Urinary iodine concentration, serum iodine concentration, serum TSH, FT4, free triiodothyronine, thyroid peroxidase antibodies and thyroglobulin antibodies were measured, and thyroid ultrasonography was performed. RESULTS: The median of TSH in iodine-fortification areas (IFA), iodine-adequate areas (IAA), iodine-excessive areas (IEA) were 2.32, 2.11 and 2.34 mIU/L, respectively. Serum TSH concentrations were significantly higher in IFA and IEA than that in IAA (p = 0.005 and < 0.0001). The TSH values of most adults were distributed within the range of 1.01-3.00 mIU/L with the same trend in three groups. In our study, TSH levels did not change with age, and the TSH level of females was higher than that of males (p < 0.0001). There was a negative correlation between FT4 and TSH in IAA (r = - 0.160, p < 0.0001) and IEA (r = - 0.177, p < 0.0001), but there was no correlation between FT4 and TSH in IFA (r = - 0.046, p = 0.370). BMI, smoking status, education levels, and marital status were associated with TSH. CONCLUSION: Our study provides a basis for establishing the reference intervals of TSH in different iodine level areas.


Assuntos
Ingestão de Alimentos/fisiologia , Iodo , Glândula Tireoide , Tireotropina/sangue , Adulto , China/epidemiologia , Estudos Transversais , Exposição Ambiental/análise , Exposição Ambiental/estatística & dados numéricos , Feminino , Humanos , Iodo/sangue , Iodo/isolamento & purificação , Iodo/urina , Masculino , Valores de Referência , Características de Residência , Testes de Função Tireóidea , Glândula Tireoide/metabolismo , Glândula Tireoide/fisiopatologia , Tiroxina/sangue , Qualidade da Água
7.
Bull Entomol Res ; 111(5): 595-604, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33998414

RESUMO

With further climate change still expected, it is predicted to increase the frequency with plants will be water stressed, which subsequently influences phytophagous insects, particularly Lepidoptera with limited mobility of larvae. Previous studies have indicated that oviposition preference and offspring performance of Lepidoptera insects are sensitive to drought separately. However, the integration of their two properties is not always seen. Here, we evaluated changes in oviposition selection and offspring fitness of a Lepidoptera insect under three water-stressed treatments using a model agroecosystem consisting of maize Zea mays, and Asian corn borer Ostrinia furnacalis. Results found that female O. furnacalis preferred to laying their eggs on well-watered maize, and then their offspring tended to survive better, attained bigger larvae mass, and developed more pupae and adults on the preferred maize. Oviposition selection of O. furnacalis positively correlated with height and leaf traits of maize, and offspring fitness positively related with water content and phytochemical traits of hosts. Overall, these results suggest that oviposition choice performed by O. furnacalis reflects the maximization of offspring fitness, supporting preference-performance hypothesis. This finding further highlights that the importance of simultaneous evaluation of performance and performance for water driving forces should be involved, in order to accurately predict population size of O. furnacalis under altered precipitation pattern.


Assuntos
Comportamento de Escolha , Mariposas/fisiologia , Oviposição , Zea mays/parasitologia , Animais , Desidratação , Herbivoria , Mariposas/crescimento & desenvolvimento , Zea mays/fisiologia
8.
Zhonghua Yu Fang Yi Xue Za Zhi ; 55(4): 492-498, 2021 Apr 06.
Artigo em Zh | MEDLINE | ID: mdl-33858061

RESUMO

Objective: To explore the correlation of damage-associated molecular pattern molecules(DAMPs) serum S100, C-reactive protein (CRP), serum amyloid A (SAA) and uric acid (UA) with age and body mass index (BMI) to provide direction for further study of metabolic inflammation and inflammaging. Methods: The observational study method was used,and three hundred and sixty-six healthy people (131 males and 235 females) were selected from the physical examination center of the Second People's Hospital of Hunan Province from May to October 2020. They were divided into three age groups according to the age interval of 20 years, including 156 (53 males and 103 females) aged 20-40 years, 110 (36 males and 74 females) aged 41-60 years, and 100 (42 males and 58 females) aged 61-80 years. Kruskal Wallis H test was used to compare the differences of serum S100, CRP, SAA and UA levels among different age groups. According to the Health Industry Standards of the People's Republic of China-Weight Determination for Adults, the boundary is BMI =24 kg/m2. The healthy people were divided into non overweight (BMI<24 kg/m2) and overweight (BMI ≥ 24 kg/m2) two groups. The 1∶1 propensity score was used to match the age and gender. There were 96 non overweight subjects [43 males, 53 females, age 52 (35, 66) years], 96 overweight subjects [44 males, 52 females, age 52 (36, 64) years]. The serum levels of S100, CRP, SAA and UA in different BMI groups were compared by Mann-Whitney U test. Results: The median serum UA concentrations in males and females were 356 and 277 µmol/L, and the levels of serum UA of male was significantly higher than that of female (Z=-10.428, P<0.001); the median serum SAA concentrations in males and females were 3.1 mg/L and 4.4 mg/L, while the serum SAA level of female was significantly higher than that of male (Z=3.652, P<0.001); for 20-40, 41-60, and 61-80 years old group, the median concentration of serum S100 was 0.058, 0.057, 0.070 µg/L, and the median concentration of serum CRP was 0.32, 0.58, 0.93 mg/L; the median serum SAA concentrations were 3.2, 4.0, 5.2 mg/L; serum uric acid concentrations were (301.8±61.5), (298.6±69.8), (329.0±77.8) µmol/L. The levels of serum S100, CRP, SAA, UA in 61-80 years group were significantly higher than those of 20-40 years group (H=-2.749, H=-6.731, H=-5.033, H=-2.521, P=0.018, P<0.001, P<0.001, P=0.035) and 41-60 years old group (H=-2.719, H=-2.539, H=-2.540, H=-2.486, P=0.020, P=0.033, P=0.033, P=0.039).The levels of serum CRP of 41-60 years group was significantly higher than that of 20-40 years group (H=-4.108,P<0.001). There was no significant difference in levels of serum S100, SAA and UA between 20-40 years group and 41-60 years group (H=0.189, H=-2.360, H=-0.165, P=1.000, P=0.055, P=1.000); the levels of serum CRP and SAA were positively correlated with age (rs =0.342, rs =0.301, P<0.001, P<0.001); for overweight, non-overweight group, the median concentrations of serum S100 were 0.065 µg/L, 0.059 µg/L, the median concentrations of serum CRP were 0.92 mg/L, 0.47 mg/L, the median concentrations of serum SAA were 5.0 mg/L, 4.1 mg/L, the median concentrations of serum UA were 339.5 µmol/L, 301.5 µmol/L, the levels of CRP, SAA and UA in the overweight group were higher than those in the non-overweight group (Z=4.278, Z=2.025, Z=3.787, P<0.001, P=0.043, P<0.001); the levels of S100 in the overweight group was higher than those in the non-overweight group, but there was no significant difference in S100 between the two groups (Z=0.862, P=0.388); the levels of Serum CRP and UA were positively correlated with BMI (rs =0.348, rs =0.264, P<0.001, P=0.009). Conclusions: With the increase of age, the serum S100, CRP, SAA and UA levels of healthy people may be on the rise, especially the serum CRP and SAA levels are positively correlated with age; the serum S100, CRP, SAA and UA levels of overweight people may be higher than those of non-overweight people, especially the serum CRP, UA levels are positively correlated with BMI.


Assuntos
Alarminas , Ácido Úrico , Adulto , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Proteína C-Reativa/análise , China , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
9.
Neth Heart J ; 29(7-8): 359-364, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34105050

RESUMO

BACKGROUND: Functional mitral regurgitation (FMR) can be subclassified based on its proportionality relative to left ventricular function and end-diastolic volume. FMR proportionality could help identify responders to transcatheter edge-to-edge mitral valve repair (MitraClip) in terms of residual FMR and/or clinical improvement. METHODS: This single-centre retrospective cohort study evaluated the feasibility of determining FMR proportionality in symptomatic heart failure patients with reduced left ventricular function who were treated with MitraClip for ≥ moderate-to-severe FMR. Baseline proportionate (pFMR) and disproportionate FMR (dFMR) were distinguished. Patient characteristics and MitraClip procedural outcomes were described. RESULTS: From an overall cohort of 81 eligible FMR patients, 23/81 (28%) had to be excluded due to missing transthoracic echocardiogram parameters, 22/81 were excluded based on FMR severity. The remaining cohort, of 36/81 patients (44%), could be classified into dFMR (n = 26) or pFMR (n = 10). Conduction disorders were numerically increased in dFMR. All cases requiring > 2 clips were in the dFMR group and absence of FMR reduction occurred more frequently with dFMR. POINT OF VIEW/CONCLUSION: Important limitations in terms of imaging acquisition affect the translation of the FMR proportionality concept to a real-world data set. We did observe different demographic and FMR response patterns in patients with proportionate and disproportionate FMR that warrant further investigation.

10.
Artigo em Zh | MEDLINE | ID: mdl-32536079

RESUMO

Objective: To investigate the diagnosis and treatment of occupational acute methanol poisoning. Methods: Retrospective analysis of the clinical data of 5 cases of occupational acute me thanol poisoning admitted from October 11 to 12, 2018. Results: The first patient was diagnosed with severe acute methanol poisoning and died after treatment with mechanical ventilation, hemodialysis, and detoxification by ethanol and folic acid for 38 hours. The remaining four cases were all diagnosed with mild acute methanol poisoning and were discharged from hospital after active symptomatic support treatment for 63 to 69 hours. Fuhermore, all the four patients were followed up for one year and without sequelaes. Conclusion: Early evaluation of the disease, early combination with hemodialysis, and use of detoxification drugs are the key to rescue occupational acute methanol poisoning.


Assuntos
Metanol , Exposição Ocupacional , Etanol , Hospitalização , Humanos , Metanol/intoxicação , Intoxicação/terapia , Diálise Renal , Estudos Retrospectivos
12.
J Clin Pharm Ther ; 43(5): 640-646, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29959799

RESUMO

WHAT IS KNOWN AND OBJECTIVE: Jintrolong® is a pegylated recombinant human growth hormone (rhGH) (PEG-rhGH) developed for weekly subcutaneous (sc) injection. The current human tolerability trial and pharmacokinetics (PK) trial evaluated the safety, tolerability and PK of single-dose Jintrolong® injection in healthy adult subjects. METHODS: Both trials were single-centre, randomized, open-label and single-dose studies. In the human tolerability trial, 34 healthy subjects were randomized to receive single-dose Jintrolong® sc injection (0.01, 0.06, 0.2, 0.5 or 0.8 mg/kg) or placebo. In the PK study, 30 healthy male subjects were evenly randomized into 3 groups to receive single-dose Jintrolong® sc injection (0.1, 0.2 or 0.4 mg/kg), and the subjects receiving 0.4 mg/kg Jintrolong® were given a single sc injection of conventional rhGH (0.067 mg/kg) after a 14-day washout period. Safety and PK profiles of Jintrolong® were evaluated. RESULTS AND DISCUSSION: Jintrolong® was well tolerated with no serious adverse events or local injection responses. The PK trial showed that the plasma growth hormone concentration elevated quickly and stayed at peak level between 12 and 48 hours post-Jintrolong® injection, then decreased gradually back to baseline within 168 hours. Compared to single-dose conventional rhGH, Jintrolong® at all doses demonstrated significantly longer half time and time to maximum plasma concentration, lower clearance and higher systemic drug exposure, indicating prolonged presence of GH in the subjects' circulation. Additionally, systemic exposure to Jintrolong® increased in a dose-dependent manner. WHAT IS NEW AND CONCLUSION: Single-dose Jintrolong® injection was well tolerated in healthy adult subjects, and the maximum tolerable dose was no lower than 0.8 mg/kg. Jintrolong® was long-acting with the potential for weekly administration.


Assuntos
Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/farmacocinética , Tolerância a Medicamentos/fisiologia , Hormônio do Crescimento Humano/efeitos adversos , Hormônio do Crescimento Humano/farmacocinética , Proteínas Recombinantes/efeitos adversos , Proteínas Recombinantes/farmacocinética , Adulto , Antineoplásicos Hormonais/administração & dosagem , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Voluntários Saudáveis , Hormônio do Crescimento Humano/administração & dosagem , Humanos , Injeções Subcutâneas/métodos , Masculino , Proteínas Recombinantes/administração & dosagem , Adulto Jovem
14.
Neth Heart J ; 25(2): 100-105, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27888494

RESUMO

Transcatheter aortic valve implantation is increasingly used to treat patients with severe aortic stenosis who are at increased risk for surgical aortic valve replacement and is projected to be the preferred treatment modality. As patient selection and operator experience have improved, it is hypothesised that device-host interactions will play a more dominant role in outcome. This, in combination with the increasing number of valve types and sizes, confronts the physician with the dilemma to choose the valve that best fits the individual patient. This necessitates the availability of pre-procedural computer simulation that is based upon the integration of the patient-specific anatomy, the physical and (bio)mechanical properties of the valve and recipient anatomy derived from in-vitro experiments. The objective of this paper is to present such a model and illustrate its potential clinical utility via a few case studies.

16.
Zhonghua Yan Ke Za Zhi ; 52(4): 268-72, 2016 Apr 11.
Artigo em Zh | MEDLINE | ID: mdl-27094064

RESUMO

OBJECTIVE: To investigate the diagnosis, treatment and prognosis of orbital solitary fibrous tumor. METHODS: Clinical data of 4 cases with orbital solitary fibrous tumor from January 2001 to June 2014 in the Second Affiliated Hospital of Xi'an Jiaotong University was retrospectively analyzed and the image, pathologic and immunohistochemical findings were reviewed. RESULTS: In the 4 cases, 3 were males and 1 was female, aged from 48 to 67 years. The main symptoms were unilateral progressive proptosis, orbital tumor and decreased vision. Two cases involved the left orbit and 2 in right. The locations of the tumor were in the lateral (2 cases) or inferior orbit (2 cases). Encapsulated smooth round shadow was shown in imaging examination and a homogeneous enhancement strengthening was seen by CT scanning. All cases underwent surgical resection and the removed tumors, appeared as round or irregular oval with fibrous capsule, were 1.5-5.0 cm in size. Three cases were pathological benign and 1 was malignant. Microscopically, the tumors were composed of a large number of spindle tumor cells and varying amounts of interstitial collagen deposition and angiogenesis. There was no atypia in benign tumor, while there was atypia in malignant tumor. Moreover, the tumor was invasive, capsuleless and shown hyperplasia area by light microscope in the case with malignant disease. CD34 and Vimentin were positive in 4 cases and Bcl-2 positive in 2 cases by immunohistochemistry staining. One patient with malignant pathology showed strong positive staining of Ki-67 (>70%) and died of tumor recurrence 10 months after he received the second operation. No metastasis or recurrence occurred by a follow-up of 2 months to 5 years in other 3 cases. CONCLUSIONS: Orbital SFT is characteristic of unilateral progressive proptosis in symptom. Imaging examination is an important diagnostic tool and a complete surgical resection of the tumor is the primary treatment method. Diagnosis depends on pathological and immunohistochemical staining. Malignant transformation may be occurred from benign lesion, hence postoperative follow-up is essential for confirmed patients.(Chin J Ophthalmol, 2016, 52: 268-272).


Assuntos
Biomarcadores Tumorais/análise , Órbita/fisiopatologia , Neoplasias Orbitárias/patologia , Neoplasias Orbitárias/cirurgia , Tumores Fibrosos Solitários/patologia , Tumores Fibrosos Solitários/cirurgia , Idoso , Antígenos CD34/análise , Colágeno , Feminino , Humanos , Imuno-Histoquímica , Antígeno Ki-67/análise , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Órbita/diagnóstico por imagem , Prognóstico , Estudos Retrospectivos , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Vimentina/análise
18.
Genet Mol Res ; 14(2): 5571-6, 2015 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-26125754

RESUMO

The aim of this study was to observe the analgesic effects of the combination of dezocine and butorphanol on postoperative cognitive function in elderly patients. Forty elderly patients undergoing upper abdominal surgeries or thoracotomies with general anesthesia were randomly divided into the dezocine and butorphanol group or the butorphanol group (20 patients per group). A visual analog scale was used to evaluate analgesia and the degree of malignant vomiting. The Ramsay scoring method was used to evaluate sedation. The Mini-Mental State Examination (MMSE) was used to evaluate cognitive function. Forty-eight hours after the operation, the pain score of the dezocine and butorphanol group (means ± SD, 1.75 ± 0.44) was lower than that of the butorphanol group (2.25 ± 0.79; P < 0.05), and the nausea and vomiting score of the dezocine and butorphanol group (0) was lower than that of the butorphanol group (0.70 ± 1.30; P < 0.05). Six hours after the operation, the sedative score of the butorphanol group (3.75 ± 0.79) was higher than that of the dezocine and butorphanol group (2.15 ± 0.75; P < 0.05). Compared to 1 day before the operation, the MMSE scores of both groups decreased 6 h after the operation, and the MMSE score of the butorphanol group (15.00 ± 2.00) was lower than that of the dezocine and butorphanol group (20.95 ± 1.54; P < 0.05). Dezocine and butorphanol analgesia had transient effects on postoperative cognitive function in elderly patients, and the effect of the combination was superior than butorphanol only.


Assuntos
Anestesia Intravenosa/efeitos adversos , Compostos Bicíclicos Heterocíclicos com Pontes/efeitos adversos , Butorfanol/efeitos adversos , Cognição/efeitos dos fármacos , Tetra-Hidronaftalenos/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Compostos Bicíclicos Heterocíclicos com Pontes/administração & dosagem , Butorfanol/administração & dosagem , Feminino , Humanos , Hipnóticos e Sedativos/administração & dosagem , Masculino , Dor/tratamento farmacológico , Dor/patologia , Complicações Pós-Operatórias , Tetra-Hidronaftalenos/administração & dosagem , Toracotomia
19.
Genet Mol Res ; 14(1): 2133-8, 2015 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-25867360

RESUMO

The study aimed to investigate the effect of intrathecal injections of Tanshinone IIA on thermal hyperalgesia in a mouse model of bone cancer-pain. Spinal IL-1ß, IL-6, TNF-α expression levels were analyzed. C3H/HeNCrlVr male mice were assigned to groups that either received dose-dependent injections of Tanshinone IIA, or the DMSO + Sham, Tanshinone IIA + Sham, DMSO + Tumor, and Control groups. Paw withdrawal thermal latency (PWTL) was measured with a radiant heat stimulus and mRNA expression levels were determined using real-time PCR. Fourteen days post-injection, PWTL in the DMSO + Tumor group was lower than that in the controls (P < 0.05). Twenty-one days post-injection, compared with the Control group, there was no significant difference in PWTL and IL-1ß, IL-6, and TNF-α expression levels between the Tanshinone IIA + Sham and DMSO + Sham groups (P > 0.05). PWTL in the DMSO + Tumor group was significantly lower than the Control group (P < 0.05), while the expression levels of IL-1ß, IL-6, and TNF-α were significantly higher than controls. Compared with the DMSO + Tumor group, PWTLs were higher in the Tanshinone IIA - 20-µg and 40-µg groups, while expression levels of IL-1ß, IL-6, and TNF-α were significantly lower (P < 0.05). These measures were not significantly different between the Tanshinone IIA 10 µg and the DMSO + Tumor groups (P > 0.05). In conclusion, Tanshinone IIA may inhibit the release of inflammatory cytokines, such as, IL-1 ß, IL-6 α, TNF-α.


Assuntos
Abietanos/administração & dosagem , Osteossarcoma/tratamento farmacológico , Dor/tratamento farmacológico , Animais , Modelos Animais de Doenças , Hiperalgesia/tratamento farmacológico , Hiperalgesia/etiologia , Hiperalgesia/metabolismo , Injeções Espinhais , Interleucinas/biossíntese , Masculino , Camundongos , Camundongos Endogâmicos C3H , Mielite/tratamento farmacológico , Mielite/metabolismo , Mielite/patologia , Osteossarcoma/metabolismo , Osteossarcoma/patologia , Dor/metabolismo , Fator de Necrose Tumoral alfa/biossíntese
20.
Zhonghua Wei Chang Wai Ke Za Zhi ; 27(5): 507-510, 2024 May 25.
Artigo em Zh | MEDLINE | ID: mdl-38778690

RESUMO

Objective: To assess the safety and feasibility of Bi's intestinal loop binding treatment of esophageal jejunal anastomotic leak after total gastrectomy. Methods: Bi's Intestinal loop binding are suitable for patients who underwent radical total gastrectomy+Roux-en-Y anastomosis and were confirmed by upper gastrointestinal angiography to have esophageal jejunal anastomotic leakage and whose conservative or endoscopic treatment was ineffective. The operation procedure is as follows: take the original central incision of the upper abdomen, remove the abscess around the anastomoses after ventral incision, and place drainage tube inside the abscess, which is convenient to rinse and drain after operation. A double 1-0 VICRYL is applied to the loop of gastrointestinal surrogate 10-15 cm proximal to the jejuno-jejunal anastomosis. The knot tension is tight to prevent regurgitation of digestive juices, but too much force should be avoided to cut the intestinal tract. Nutritional jejunostomy fistula was performed at 10‒15 cm distal to the jejuno-jejunal anastomosis and gastric tube was retained during the operation. The preoperative and postoperative data from 12 patients with jejunal esophageal anastomotic leak after total radical gastrectomy and Roux-en-Y anastomosis were retrospectively analyzed from October 2016 to January 2023 in gastrointestinal surgery and pancreas surgery at Shanxi People's Hospital, and observed the curative effect. Results: 12 patients were managed with Bi's Intestinal loop binding, operative time (60.0±20.8) minutes, median bleeding (50±10.8) ml, median hospital stay 20(12~28) days, and median reviewing upper and mid Gastrointestinal Contrast time postoperatively 61(52~74) days. The results showed that the anastomoses healed well, all the small intestine showed good imaging, the binding wire fell off by itself, and two patients had incision infection. Conclusions: It is safe and feasible for patients with esophageal jejunostomy fistulae after total gastrectomy to use the method of Bi's Intestinal loop binding.


Assuntos
Fístula Anastomótica , Esôfago , Gastrectomia , Jejuno , Humanos , Gastrectomia/métodos , Masculino , Jejuno/cirurgia , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Esôfago/cirurgia , Anastomose em-Y de Roux/métodos , Idoso , Anastomose Cirúrgica/métodos , Resultado do Tratamento
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