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1.
Environ Pollut ; 345: 123503, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38331243

RESUMO

Methyl jasmonate (MeJA), a crucial phytohormone, which plays an important role in resistance to Cadmium (Cd) stress. The cell wall (CW) of root system is the main location of Cd and plays a key role in resistance to Cd toxicity. However, the mechanism effect of MeJA on the CW composition and Cd accumulation remain unclear. In this study, the contribution of MeJA in regulating CW structure, pectin composition and Cd accumulation was investigated in Cosmos bipinnatus. Phenotypic results affirm MeJA's significant role in reducing Cd-induced toxicity in C. bipinnatus. Notably, MeJA exerts a dual impact, reducing Cd uptake in roots while increasing Cd accumulation in the CW, particularly bound to pectin. The molecular structure of pectin, mainly uronic acid (UA), correlates positively with Cd content, consistent in HC1 and cellulose, emphasizing UA as pivotal for Cd binding. Furthermore, MeJA modulates pectin methylesterase (PME) activity under Cd stress, influencing pectin's molecular structure and homogalacturonan (HG) content affecting Cd-binding capacity. Chelate-soluble pectin (CSP) within soluble pectins accumulates a substantial Cd proportion, with MeJA regulating both UA content and the minor component 3-deoxy-oct-2-ulosonic acid (Kdo) in CSP. The study delves into the intricate regulation of pectin monosaccharide composition under Cd stress, revealing insights into the CW's physical defense and Cd binding. In summary, this research provides novel insights into MeJA-specific mechanisms alleviating Cd toxicity in C. bipinnatus, shedding light on complex interactions between MeJA, and Cd accumulation in CW pectin polysaccharide.


Assuntos
Acetatos , Asteraceae , Cádmio , Ciclopentanos , Oxilipinas , Cádmio/metabolismo , Raízes de Plantas/metabolismo , Polissacarídeos/metabolismo , Polissacarídeos/farmacologia , Pectinas/química , Parede Celular/metabolismo , Asteraceae/metabolismo
3.
Sci Rep ; 13(1): 22128, 2023 12 13.
Artigo em Inglês | MEDLINE | ID: mdl-38092856

RESUMO

This study aimed to investigate the Mg × K product on the mortality risk of hemodialysis patients with concomitant hypokalemia and lower magnesium levels. This was a prospective observational study of patients in a HD center in southern Taiwan. A total of 444 HD patients were divided into 5 groups by the Mg × K product: group 1, bottom quintile, median Mg × K: 7.87, IQR: 7.03-8.12 (n = 89, age: 64 ± 13 years old); group 2, median Mg × K: 9.37, IQR: 8.97-9.86 (n = 89, age:62 ± 13 years old); group 3, median Mg × K: 10.95, IQR: 10.50-11.26 (n = 89, age:64 ± 13 years old); group 4, median Mg × K: 12.30, IQR: 11.87-12.82 (n = 89, 61 ± 12 years old); and group 5, top quintile, median Mg × K: 14.92, IQR:14.07-16.23 (n = 88, 62 ± 11 years old). The patients were followed up for 2 years to determine the risk of all-cause mortality. Patients with a lower Mg × K product had more comorbidities, malnutrition-inflammation status, and a higher mortality risk. Using multivariable Cox regression analysis, a higher Mg × K [HR, 0.89; 95%CI (0.81-0.98)] was found to be an independent predictor of better survival. HD patients with a lower Mg × K product had more comorbidities, a marked malnutrition-inflammation status, and were associated with long-term mortality. A higher Mg × K value is a favorable survival factor.


Assuntos
Falência Renal Crônica , Desnutrição , Idoso , Humanos , Pessoa de Meia-Idade , Estudos de Coortes , Inflamação/etiologia , Falência Renal Crônica/complicações , Magnésio , Desnutrição/complicações , Potássio , Diálise Renal/efeitos adversos , Estudos Prospectivos
4.
Front Endocrinol (Lausanne) ; 14: 1246590, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37693344

RESUMO

Introduction: Studies on association of α-klotho levels with mortality risk in general population are relatively scarce and inconclusive. Therefore, we conducted a population-based cohort study to investigate the relationship between soluble α-klotho and all-cause mortality in a nationally representative sample of middle-aged and older adults in the United States (U.S.). Methods: The study population was 2007-2016 National Health and Nutrition Examination Survey (NHANES) participants, totaling 13,583 adults aged 40-79 years. Participants were divided into 7 groups by septile of α-klotho levels. We linked the NHANES data to the National Death Index to determine participants' survival status. End of follow-up was participants' death date or December 31, 2019. Results: We observed that males, current smokers, older age, higher body mass index, and lower estimated glomerular filtration rate correlated to lower α-klotho levels, while hepatitis C virus infection correlated to higher α-klotho. The population mortality rate was 11.8 per 10,000 person-months (1,490 deaths); group 1 (the first septile) had higher mortality risk compared with group 2 through group 7. By weighted Cox regression with adjustment for potential confounders, we found that group 2 through group 6, but not group 7, were associated with 25% to 35% lower risk of all-cause mortality compared with group 1. When compared with group 4, we observed that both group 1 (HR: 1.46, 95% CI 1.13-1.88) and group 7 (HR: 1.38, 95% CI 1.09-1.74) were associated with higher mortality risk. Conclusion: In summary, among middle-aged and older U.S. adults, we observed a non-linear association between soluble α-klotho and all-cause mortality, with individuals at the two extremes at increased risk of death.


Assuntos
Hepacivirus , Masculino , Pessoa de Meia-Idade , Humanos , Idoso , Estudos de Coortes , Inquéritos Nutricionais , Índice de Massa Corporal
5.
Front Nutr ; 10: 1163737, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37275650

RESUMO

Introduction: The prevalence of vitamin D deficiency varied among populations and regions worldwide. In addition, the association between vitamin D deficiency and health outcomes remained controversial. Our study aimed to investigate the prevalence of vitamin D deficiency and its association with mortality risk among non-institutional middle-aged and older adults in the United States. Method: The study population included 11,119 adult participants aged between 50 and 79 years in the 2007-2016 National Health and Nutrition Examination Survey (NHANES). Vitamin D status was divided as ≤ 30 (severely deficient), 30.1-50 (moderately deficient), 50.1-75 (insufficient), 75.1-100 (sufficient), and > 100 nmol/L (very sufficient). NHANES data were linked to National Death Index to ascertain the survival status and cause of death. Results: The population aged 61.5 years (survey-weighted) and 47.9% were men. Among them, 4.6% were severely vitamin D deficient, 15.2% moderately deficient, and 33.6% insufficient. Individuals with higher vitamin D levels tended to be female, older, white people, non-smoker, non-single, more educated, with higher family income, and lower body mass index. During a median follow-up of 97.0 months, a total of 1,585 participants died (15.9 per 10,000 person-months). The crude analysis showed that vitamin D deficiency, but not vitamin D insufficiency, correlated to higher all-cause mortality risk. The association remained similar after adjusting for potential confounders, showing that vitamin D deficiency (HR: 1.38, 95% CI 1.15-1.66), but not vitamin D insufficiency (HR: 1.03, 95% CI 0.88-1.20), correlated to higher all-cause mortality risk. In addition, we showed that vitamin D deficiency was an independent risk factor for death from pneumonia (HR: 3.82, 95% CI 1.14-12.86) but not from cardiovascular diseases, cancer, or cerebrovascular diseases. Conclusion: In summary, among middle-aged and older adults in the United States, nearly 20% were vitamin D deficient. Vitamin D deficiency, but not vitamin D insufficiency, correlated to increased mortality risk.

6.
PLoS One ; 18(2): e0281590, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36795764

RESUMO

BACKGROUND: Compared with children and immunocompromised patients, Adenovirus pneumonia in immunocompetent adults is less common. Evaluation of the applicability of severity score in predicting intensive care unit (ICU) admission of Adenovirus pneumonia is limited. METHODS: We retrospectively reviewed 50 Adenovirus pneumonia inpatients in Xiangtan Central Hospital from 2018 to 2020. Hospitalized patients with no pneumonia or immunosuppression were excluded. Clinical characteristics and chest image at the admission of all patients were collected. Severity scores, including Pneumonia severity index (PSI), CURB-65, SMART-COP, and PaO2/FiO2 combined lymphocyte were evaluated to compare the performance of ICU admission. RESULTS: Fifty inpatients with Adenovirus pneumonia were selected, 27 (54%) non-ICU and 23 (46%) ICU. Most patients were men (40 [80.00%]). Age median was 46.0 (IQR 31.0-56.0). Patients who required ICU care (n = 23) were more likely to report dyspnea (13[56.52%] vs 6[22.22%]; P = 0.002) and have lower transcutaneous oxygen saturation ([90% (IQR, 90-96), 95% (IQR, 93-96)]; P = 0.032). 76% (38/50) of patients had bilateral parenchymal abnormalities, including 91.30% (21/23) of ICU patients and 62.96% (17/27) of non-ICU patients. 23 Adenovirus pneumonia patients had bacterial infections, 17 had other viruses, and 5 had fungi. Coinfection with virus was more common in non-ICU patients than ICU patients (13[48.15%]VS 4[17.39%], P = 0.024), while bacteria and fungi not. SMART-COP exhibited the best ICU admission evaluation performance in Adenovirus pneumonia patients (AUC = 0.873, p < 0.001) and distributed similar in coinfections and no coinfections (p = 0.26). CONCLUSIONS: In summary, Adenovirus pneumonia is not uncommon in immunocompetent adult patients who are susceptible to coinfection with other etiological illnesses. The initial SMART-COP score is still a reliable and valuable predictor of ICU admission in non-immunocompromised adult inpatients with adenovirus pneumonia.


Assuntos
Infecções por Adenoviridae , Infecções Comunitárias Adquiridas , Pneumonia Viral , Masculino , Criança , Humanos , Adulto , Feminino , Estudos Retrospectivos , Pneumonia Viral/diagnóstico , Hospitalização , Unidades de Terapia Intensiva , Infecções por Adenoviridae/diagnóstico , Adenoviridae , Índice de Gravidade de Doença
7.
PLoS One ; 17(12): e0277180, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36576930

RESUMO

BACKGROUND: Dietary magnesium intake inversely correlated to risk of death in general population. However, it is relatively unknown whether the beneficial effect remains significant in individuals with diabetes. Our study purpose is to evaluate the association of dietary magnesium intake with mortality risk in diabetic population. METHODS: The study population is recruited from 2003-2014 National Health and Nutrition Examination Survey, totaling 2,045 adults with diabetes being included. Participants were divided based on glycohemoglobin (HbA1c < 7% and ≥ 7%) and daily dietary magnesium intake (≤ and > 250mg/day) ascertained by 24-hour dietary recall interviews. RESULTS: The average age of the study population was 52.9±10.1 years, with 49.1% being male. During a median follow-up of 77.0 months (interquartile range: 45.0-107.0 months), a total of 223 participants died (1.5 per 1000 person-months). Our results showed that individuals with lower dietary magnesium intake (≤250mg/day) had higher risk of all-cause (HR: 1.56, 95% CI: 1.13-2.16) and other-cause (non-cardiovascular and non-cancer) mortality (HR: 1.68, 95% CI: 1.09-2.60), while cardiovascular and cancer-related mortality were similar compared with individuals with magnesium intake > 250mg/day. We also showed that the risk of all-cause (HR: 1.86, 95% CI: 1.33-2.60) and other-cause mortality (HR: 2.03, 95% CI: 1.29-3.19) were higher in individuals with poorly controlled diabetes (HbA1c ≥7.0%) compared with HbA1c <7.0%; however, the association attenuated in the subgroup of higher magnesium intake (>250mg/day). When combining HbA1c and dietary magnesium intake, we showed that individuals with HbA1c ≥ 7% and dietary magnesium intake ≤ 250 mg/day had higher all-cause and other-cause (non-cardiovascular and non-cancer) mortality risk compared with those with HbA1c < 7% and/or dietary magnesium intake > 250 mg/day. CONCLUSION: Higher magnesium intake may help reduce mortality risk in individuals with diabetes and attenuate mortality risk of poor diabetic control.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Hemoglobinas Glicadas , Magnésio , Inquéritos Nutricionais , Estudos Prospectivos , Diabetes Mellitus/induzido quimicamente , Dieta , Fatores de Risco
8.
PLoS One ; 17(11): e0276159, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36346823

RESUMO

BACKGROUND: Serum prealbumin level is slightly higher, whereas albumin is lower in peritoneal dialysis (PD) than hemodialysis (HD) patients. It is unknown whether albumin to prealbumin ratio (APR) is associated with mortality risk among PD patients. This study aimed to evaluate the clinical implications of APR and its prediction value on long-term outcomes of PD patients. METHODS: The study population were prevalent PD patients at a tertiary hospital. Based on APR, a total of 220 PD patients were divided into 3 groups: group 1: top tertile, median APR: 121.1; IQR:109.5-131.9 (n = 73, male: 37%; age: 59±13); group 2: middle tertile, median APR: 97.1; IQR 93.5-100.0 (n = 73, male:37%; age: 54±14), and group3: bottom tertile, median APR: 81.3; IQR:76.8-85.0 (n = 74, male:38%; 54±11). Patients were followed up for a maximum of 5 years. Outcome of interest was all-cause mortality. RESULTS: Group 1 was characterized by older age, higher prevalence of diabetes, lower nPCR, higher Davies score and hs-CRP level. APR positively correlated to hs-CRP (ß = 0.149, p = 0.045), but negatively correlated to nPCR (ß = -0.161, p = 0.034). Hyperprealbuminemia, accounting for 0%, 23.3%, and 82.4% in groups 1,2, and 3, was associated with a lower risk for mortality (HR:0.41, 95%CI = 0.23-0.73). The cumulative survival is significantly lower in group 1 than the other two groups. By multivariable Cox regression, APR (HR:1.02; 95%CI:1.01-1.03) was found to be an independent predictor of long-term mortality. CONCLUSION: PD patients with high APR are characterized by having more comorbidities and marked malnutrition-inflammation status, and are associated with long-term mortality, whereas hyperprealbuminemia and lower APR are favorable prognostic factors.


Assuntos
Falência Renal Crônica , Diálise Peritoneal , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Proteína C-Reativa/análise , Diálise Peritoneal/efeitos adversos , Pré-Albumina/análise , Prognóstico , Diálise Renal , Feminino
9.
PeerJ ; 10: e14203, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36248710

RESUMO

Background: Malnutrition-inflammation-atherosclerosis (MIA) syndrome is caused by the inflammatory cytokines in end stage renal disease (ESRD) patients, and MIA complex-related factors may be associated with hypomagnesemia and mortality. However, the association between serum magnesium level and mortality for dialysis patients is still not clear. Additionally, no meta-analysis has investigated the impact of serum magnesium on peritoneal dialysis and hemodialysis, separately. Methods: We searched published studies in PubMed, Embase, Cochrane, Collaboration Central Register of Controlled Clinical Trials, and Cochrane Systematic Reviews through April 2022. Studies associated with serum magnesium and all-cause mortality or cardiovascular (CV) mortality in ESRD on kidney replacement therapy (KRT) patients were included. A hazard ratio (HR) with 95% confidence intervals (CI) was used to report the outcomes. Results: Twenty-one studies involving 55,232 patients were included. Overall, there was a significant association between hypomagnesemia and all-cause mortality for dialysis patients (HR: 1.67, 95% CI [1.412-2.00], p < 0.001; certainty of evidence: moderate) using a mixed unadjusted and adjusted HR for analysis. There was also a significantly increased risk of CV mortality for individuals with hypomagnesemia compared with the non-hypomagnesemia group (HR 1.56, 95% CI [1.08-2.25], p < 0.001; certainty of evidence: moderate). In addition, a subgroup analysis demonstrated that hypomagnesemia was associated with a high risk of both all-cause mortality and CV mortality (all-cause mortality, HR:1.80, 95% CI [1.48-2.19]; CV mortality, HR:1.84, 95% CI [1.10-3.07]) in hemodialysis (HD) patients, but not in participants receiving peritoneal dialysis (PD; all-cause mortality, HR:1.26, 95% CI [0.84-1.91]; CV mortality, HR:0.66, 95% CI [0.22-2.00]). The systematic review protocol was prespecified and registered in PROSPERO [CRD42021256187]. Conclusions: Hypomagnesemia may be a significant risk factor for all-cause mortality and CV mortality in KRT patients, especially in those receiving hemodialysis. However, because of the limited certainty of evidence, more studies are required to investigate this association.


Assuntos
Falência Renal Crônica , Diálise Peritoneal , Humanos , Diálise Renal/efeitos adversos , Magnésio , Falência Renal Crônica/terapia , Diálise Peritoneal/efeitos adversos , Fatores de Risco , Inflamação/complicações
10.
Front Oncol ; 12: 949910, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36046038

RESUMO

Mucormycosis caused by Lichtheimia ramosa is an emerging and uncommon opportunistic infection in patients with hematological malignancies, with high mortality rates. Herein, we first report a case of pulmonary mucormycosis with Lichtheimia ramosa in a 3-year-old girl recently diagnosed with B-cell acute lymphoblastic leukemia. The diagnosis was made using computerized tomography of the lung, metagenomic next-generation sequencing (mNGS) of blood and sputum specimens, and microscopic examination to detect the development of Lichtheimia ramosa on the surgical specimen. She was effectively treated after receiving prompt treatment with amphotericin B and posaconazole, followed by aggressive surgical debridement. In our case, the fungal isolates were identified as Lichtheimia ramosa using mNGS, which assisted clinicians in quickly and accurately diagnosing and initiating early intensive treatment. This case also indicated the importance of strong clinical suspicion, as well as aggressive antifungal therapy combined with surgical debridement of affected tissues.

11.
PLoS One ; 17(7): e0271197, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35802581

RESUMO

BACKGROUND: Whether there is difference in kidney disease risk between chronic hepatitis C virus (HCV) infection and resolved HCV infection remains inconclusive. Additionally, the impact of different HCV genotypes on kidney disease risk is relatively unknown. Accordingly, we conducted a population-based cross-sectional study to investigate the association of HCV infection status and genotype on kidney disease risk. METHODS: The study population were adult participants of 1999-2018 National Health and Nutrition Examination Survey in the United States. Chronic and resolved infection were defined as HCV seropositivity with and without detectable HCV RNA, respectively. HCV genotypes were classified into genotype 1, genotype 2, and other genotypes. Prevalent estimated glomerular filtration rate < 60 ml/min/1.73 m2 or urinary albumin creatinine ratio ≥ 30 mg/g was defined as kidney disease. RESULTS: The average age of study population (n = 44,998) was 46.7±17.0 years with 49.8% being males. Compared with individuals without HCV infection (n = 44,157), those with resolved (n = 255) or chronic HCV infection (n = 586) had higher prevalence of kidney disease: 14.8%, 23.5%, and 20.1%, respectively (p<0.001). After adjusting for potential confounders, we found that both resolved (adjusted OR: 1.40, 95% CI: 1.02-1.93) and chronic HCV infection (adjusted OR: 1.26, 95% CI: 1.01-1.57) correlated to increased kidney disease risk compared with no HCV infection. Additionally, individuals with HCV genotype 1 (adjusted OR: 1.41, 95% CI: 1.09-1.82) but not genotype 2 or other genotypes had greater kidney disease risk compared with no HCV infection. Furthermore, we observed that genotype 1 had 2-fold higher kidney disease risk (adjusted OR: 2.20, 95% CI: 1.07-4.53) compared with non-genotype 1 HCV infection. CONCLUSION: Both resolved and chronic HCV infection, particularly genotype 1, were associated with higher kidney disease risk.


Assuntos
Hepatite C Crônica , Hepatite C , Insuficiência Renal Crônica , Adulto , Estudos Transversais , Feminino , Hepacivirus/genética , Hepatite C/complicações , Hepatite C/epidemiologia , Hepatite C/genética , Hepatite C Crônica/complicações , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/genética , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/epidemiologia , Insuficiência Renal Crônica/genética , Estados Unidos
12.
Artigo em Inglês | MEDLINE | ID: mdl-35356245

RESUMO

Relapse as the commonest treatment failure through chemotherapy of child presented with acute lymphoblastic leukemia (ALL) is usually within 3 years of remission. Central nervous system (CNS) is expected as a site of extramedullary relapse in 3-8% of child leukemia, often leading to a poor prognosis. A few patients may have headache and vomiting and can be diagnosed without difficulty. However, most patients present with asymptomatic conditions. Obesity has become one of the greatest reported complications of children ALL survivors. Rarely, obesity presentation can be the first manifestation of CNS leukemia. Here, we present three unusual cases with B-ALL presentation of obesity as the first symptom at the time of CNS relapse after achieving remission. This highly localized presentation is unusual and would hopefully inform clinicians to have a high index of suspicion for relapse in children with ALL.

13.
Nat Prod Res ; 36(7): 1781-1788, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32924588

RESUMO

Seventeen quinolizidine alkaloids, including a new matrine-type one, sophcence A (1), were isolated from the roots of Sophora flavescens Alt. The structure of compound 1 was elucidated by means of 1D and 2D NMR, as well as HR-ESI-MS spectroscopic data. The NMR data of (-)-Δ7-dehydrosophoramine (10) and oxy-N-methylcytisine (12) were reported for the first time. In addition, (+)-sophoranol (4) exhibited moderate inhibition on lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW 264.7 macrophages with IC50 value of 22.14 µM, while lupanine (17) was found to inhibit the growth of human glioma stem cells GSC-3# at 20 µg/mL.


Assuntos
Alcaloides , Quinolizidinas , Sophora , Alcaloides/química , Humanos , Lipopolissacarídeos/farmacologia , Raízes de Plantas/química , Quinolizidinas/farmacologia , Quinolizinas/química , Sophora/química
15.
Med Sci Monit ; 27: e933381, 2021 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-34775462

RESUMO

BACKGROUND Little is known of the changes in lung radiographic characteristics over time in patients recovering from COVID-19. This study analyzed the clinical features and temporal lung radiographic changes in patients with moderate and severe COVID-19 pneumonia who did not require invasive mechanical ventilation during the acute and convalescent periods. MATERIAL AND METHODS The data of 25 patients with COVID-19 pneumonia from January 29, 2020, to November 24, 2020, who did not require invasive mechanical ventilation and who were followed up were retrospectively collected. The 25 patients were divided into severe and moderate groups. Clinical characteristics and computed tomography (CT) manifestations were compared. A total of 121 consecutive thin-slice CT scans were collected at 4 weeks, 2 months, and 5 months after admission to evaluate lung abnormalities in the patients. The CT score was used to assess disease severity. RESULTS The severe group had a lower rate of nucleic acid conversion within 10 days of admission and higher D-dimer, creatine kinase, and lactate dehydrogenase values. In the severe group, hospital stay was longer and hospitalization costs were higher. The average CT score of the severe group peaked in the second week, while the moderate group peaked in the first week and then decreased over time. There were no statistically significant differences in the average CT score between the 2 groups at the 5-month follow-up. CONCLUSIONS The pulmonary lesions of patients recovering from COVID-19 and who do not require invasive mechanical ventilation were gradually absorbed and resolved over time.


Assuntos
COVID-19/diagnóstico por imagem , COVID-19/patologia , Pulmão/diagnóstico por imagem , Pulmão/fisiologia , Tomografia Computadorizada por Raios X/métodos , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , SARS-CoV-2
17.
Medicine (Baltimore) ; 100(20): e26009, 2021 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-34011099

RESUMO

ABSTRACT: Increased water intake correlated to lower vasopressin level and may benefit kidney function. However, results of previous studies were conflicted and inconclusive. We aimed to investigate the association between water intake and risk of chronic kidney disease (CKD) and albuminuria.In this cross-sectional study, the study population were adult participants of 2011-2012 National Health and Nutrition Examination Survey (NHANES) whose estimated glomerular filtration rate (eGFR) were ≥30 ml/min/1.73 m2. Data of water intake were obtained from the NHANES 24-h dietary recall questionnaire. Participants were divided into three groups based on volume of water intake: <500 (low, n = 1589), ≥500 to <1200 (moderate, n = 1359), and ≥1200 ml/day (high, n = 1685). CKD was defined as eGFR <60 ml/min/1.73 m2, and albuminuria as albumin-to-creatinine ratio (ACR) ≥30 mg/g.Our results showed that 377 out of 4633 participants had CKD; the prevalence inversely correlated to volume of water intake: 10.7% in low, 8.2% in moderate, and 5.6% in high intake groups (P < .001). Prevalence of albuminuria was also lower in high (9.5%) compared with moderate (12.8%) and low intake groups (14.1%), P < .001. Additionally, water intake positively correlated to eGFR and negatively correlated to urinary ACR, as well as plasma and urine osmolality. Multivariable logistic regression showed that low water intake group had higher risk of CKD (OR 1.35, 95% CI 1.01-1.82) and albuminuria when compared to high water intake group (OR 1.42, 95% CI 1.13-1.79).In conclusion, increased water intake was associated lower risk of CKD and albuminuria. Meticulous studies are needed to elucidate the underlying mechanisms.


Assuntos
Albuminúria/epidemiologia , Ingestão de Líquidos/fisiologia , Insuficiência Renal Crônica/epidemiologia , Adulto , Idoso , Albuminúria/fisiopatologia , Albuminúria/urina , Creatinina/urina , Estudos Transversais , Feminino , Taxa de Filtração Glomerular/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais/estatística & dados numéricos , Prevalência , Fatores de Proteção , Insuficiência Renal Crônica/fisiopatologia , Insuficiência Renal Crônica/urina
18.
Bioorg Chem ; 110: 104781, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33677246

RESUMO

Forty-three quinolizidine alkaloids (1-43), including twelve new matrine-type ones, sophalodes A-L (1-7, 17, 19 and 28-30), were isolated from the seeds of Sophora alopecuroides. Structurally, compounds 1-4 were the first examples of C-11 oxidized matrine-type alkaloids from Sophora plants. The structures and absolute configurations of new compounds were elucidated by extensive spectroscopic techniques, X-ray diffraction analysis, and quantum chemical calculation. In addition, the NMR data and absolute configuration of compound 18 was reported for the first time. All the isolates were evaluated for their inhibition on nitric oxide production induced by lipopolysaccharide in RAW 264.7 macrophages, among them, compounds 29, 38 and 42 exhibited the most significant activity with IC50 values of 29.19, 25.86 and 33.30 µM, respectively. Further research about new compound 29 showed that it also suppressed the protein levels of iNOS and COX-2, which revealed its anti-inflammatory potential. Moreover, additional research showed that compound 16 exhibited marginal cytotoxicity against HeLa cell lines, with an IC50 value of 24.27 µM.


Assuntos
Anti-Inflamatórios/farmacologia , Antineoplásicos Fitogênicos/farmacologia , Simulação de Acoplamento Molecular , Quinolizidinas/farmacologia , Sophora/química , Animais , Anti-Inflamatórios/química , Anti-Inflamatórios/isolamento & purificação , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/isolamento & purificação , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Lipopolissacarídeos/antagonistas & inibidores , Lipopolissacarídeos/farmacologia , Camundongos , Estrutura Molecular , Óxido Nítrico/antagonistas & inibidores , Óxido Nítrico/biossíntese , Quinolizidinas/química , Quinolizidinas/isolamento & purificação , Células RAW 264.7 , Relação Estrutura-Atividade
19.
Medicine (Baltimore) ; 100(8): e24802, 2021 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-33663097

RESUMO

RATIONALE: Clitoris swelling as the initial clinical presentation of acute lymphoblastic leukemia (ALL) is extremely rare. These patients may be misdiagnosed with acute myeloid leukemia or solid tumor, and the main treatment can also be delayed. PATIENT CONCERNS: A 2.10-year-old girl was referred to the pediatric surgery clinic with a worsening onset of clitoris swellings. The patient was afebrile and well appearing. Multiple retroperitoneal mass were confirmed by computed tomography (CT) and high serum neuron-specific enolase level was high. She was scheduled for an abdominal biopsy from the retroperitoneal mass suspicious of neuroblastoma. DIAGNOSES: The child was eventually diagnosed as having precursor B cell ALL with central nervous system involved, with TCF3-PBX1 fusion gene and additional chromosomal aberrations, based on examinations of the bone marrow and brain magnetic resonance imaging. INTERVENTIONS: Before the diagnosis of leukemia, the patient was given symptomatic treatment for 1 week. She was treated with chemotherapy in accordance with the Chinese Children's Cancer Group protocol 2015 after confirmed diagnosis. OUTCOMES: After induction chemotherapy for ALL, although the girl had transiently clinical remission, the bone marrow aspirate indicated a poor outcome. Our patient discontinued treatment and discharged. From literature review, there was only 1 case of in acute myeloid leukemia with clitoris swelling as the initial symptom. LESSONS: The clinical symptoms of ALL with clitoris swelling are not typical, with a high rate of misdiagnosis. When the cause of clitoris swelling is unknown, ALL should be considered. Bone marrow aspiration must be done before doing a more invasive investigation like biopsy.


Assuntos
Clitóris/patologia , Proteínas de Fusão Oncogênica/genética , Leucemia-Linfoma Linfoblástico de Células Precursoras B/genética , Leucemia-Linfoma Linfoblástico de Células Precursoras B/patologia , Pré-Escolar , Feminino , Humanos , Leucemia-Linfoma Linfoblástico de Células Precursoras B/diagnóstico
20.
Phytochemistry ; 184: 112681, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33548771

RESUMO

Seven undescribed (valejatadoids A-G) and 26 known iridoids were obtained from the roots and rhizomes of Valeriana jatamansi. Their structures were determined based on extensive spectroscopic data, especially 1D and 2D NMR, along with HRESIMS. Valejatadoid B is a monoene-type iridoid with a unique double bond between C-4 and C-5. Valejatadoids D-G, jatamanin U, jatamanin O, jatamanvaltrate E, valeriotetrate C, IVHD-valtrate, 10-isovaleroxy-valtrathydrin, jatamanvaltrate Q, valeriandoid F, jatamanvaltrate K, jatamanvaltrate W and isovaltrate were more potent than the positive control when evaluated for inhibition of NO production. Among them, valeriandoid F and jatamanvaltrate K exhibited the most significant inhibitory effects with IC50 values of 0.88 and 0.62 µM, respectively. In addition, valeriandoid F selectively inhibited the proliferation of human glioma stem cell lines, GSC-3# and GSC-18#, with IC50 values of 7.16 and 5.75 µM, respectively.


Assuntos
Nardostachys , Valeriana , Anti-Inflamatórios , Iridoides/farmacologia , Estrutura Molecular , Raízes de Plantas
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