scholarly journals Impact of Metabolic Syndrome Diagnosis and Its Treatment on Survival of Colorectal Cancer Patients

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Rose N. Mafiana ◽  
Maimona S. Al-Kindi ◽  
Ngozichukwu Mafiana ◽  
Ahmed S. Al Lawati ◽  
Mansour Al Moundhri

Background. Epidemiologic findings on the effect of metabolic syndrome (MetS) and its treatment on colorectal cancer (CRC) survival have been inconsistent and have not been previously studied in an Arab population such as the Omani population.Patients and Methods. Data from the hospital records of 301 CRC patients treated in Sultan Qaboos University (SQUH), Oman, from 2006 to 2014 were analyzed retrospectively to determine the effects of MetS and its treatment on CRC survival. Overall survival (OS) by MetS status and by medications for MetS components management was compared with Cox proportional models.Results. Of the 301 patients, 76 (25.2%) had MetS, 20.3% were on insulin, 23.9% were on metformin, 25.6% took statins, 17.9% were on either angiotensin converting enzyme inhibitors (ACEI) or angiotensin receptor blocker (ARB). Whereas metformin (HR, 0.46, 95% CI, 0.25-0.84) and statins (HR, 0.58; 95% CI, 0.35-0.96) had a protective effect on OS, insulin (HR 1.73, 95% CI, 1.02-2.97) had a detrimental effect. In subgroup analysis of diabetic subjects, a nonsignificant improvement in OS was observed in the metformin treated patients compared to those on other hypoglycemic agents (HR, 0.92, 95% CI, 0.55-1.55). Neither MetS nor antihypertensive drugs had any apparent effect on OS.Conclusions. Our result suggests that, among CRC patients with MetS, taking metformin and statins may improve overall survival, whereas being on insulin may negatively impact CRC prognosis. Further studies are warranted to determine the exact mechanism through which metformin, statins, and insulin exert their effects on CRC survival.

2022 ◽  
Vol 12 ◽  
Author(s):  
Yujiao Deng ◽  
Yuxiu Xie ◽  
Meng Wang ◽  
Peng Xu ◽  
Bajin Wei ◽  
...  

Background: Antihypertensive drugs might play a key role in the risk and poor prognosis of colorectal cancer. However, current epidemiologic evidence remains inconsistent. The aim of this study is to quantify the association between antihypertensive drugs and colorectal cancer.Methods: To identify available studies, we systematically searched electronic databases: PubMed, Web of Science, Embase, Cochrane Library. The risk estimates and their corresponding 95% confidence intervals (CIs) were collected and analyzed by using random-effects models. Heterogeneity test and sensitivity analysis were also performed.Results: Overall, 37 observational studies were included in this analysis (26 studies with cohort design, three studies with nested case-control design, and 8 studies with case-control design). Antihypertensive drugs did not present a significant effect on the risk or overall survival of patients with colorectal cancer [Risk ratio (RR) = 1.00, 95% CI: 0.95–1.04; Hazard ratio (HR) = 0.93, 95% CI: 0.84–1.02]. In the subgroup analysis, diuretics use was significantly associated with a worse overall survival of patients with colorectal cancer (HR = 1.27; 95% CI: 1.14–1.40). However, use of angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers was associated with improved progression-free survival of patients who suffered from colorectal cancer (HR = 0.83; 95% CI: 0.72–0.95).Conclusion: Antihypertensive drug usage did not influence the risk and overall survival of patients with colorectal cancer in general. Further investigation reminded us that diuretics use might reduce the overall survival time in colorectal cancer patients, whereas those who took Angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers had a longer progression-free survival.


Author(s):  
O. V. Vlyubchak ◽  
S. V. Dutova ◽  
I. P. Romanova

The article describes the results of analyzing the available literature concerning specifics of pharmacotherapy for hypertension in elderly patients and patients with metabolic syndrome and diabetes mellitus. Authors present statistical data on the prevalence of hypertension among elderly patients and the incidence of obesity and diabetes in the Russian Federation. The paper highlights the characteristics of clinical course of hypertension in the older age group including the predominance of isolated systolic hypertension, vascular stiffness, and increased endothelial dysfunction. The need for administration of antihypertensive drugs to reduce the risk of complications and improve the quality of life even in older patients is confirmed. The analysis of data from numerous large studies allowed the authors to identify the main principles for selecting antihypertensive drugs in elderly patients. Slow calcium channel blockers, angiotensin converting enzyme inhibitors, and low-dose diuretics should be prescribed as first-line drugs. At the next stage of treatment, in case of unsatisfactory results of initial therapy, the addition of mineralocorticoid receptor antagonists, alpha-blockers, and selective imidazoline receptor agonists should be considered. The main approaches to antihypertensive therapy in patients with metabolic syndrome and diabetes mellitus are described. The authors note the fact of unfavorable impact of metabolic syndrome on cardiovascular system, which provides rationale for aggressive treatment of hypertension in such clinical cases where several drugs may be used to achieve a stable antihypertensive effect. Diuretics, angiotensin-converting enzyme inhibitors, and angiotensin receptor blockers are recommended as first-line antihypertensive pharmacotherapy in these patients. The authors argue in favour of the use of antihypertensive drug combinations in one dosage form as one of the effective ways to solve the problem of adherence to treatment in elderly patients and patients with concomitant metabolic disorders.


2013 ◽  
Vol 2013 ◽  
pp. 1-18 ◽  
Author(s):  
Jie Wang ◽  
Bo Feng ◽  
Xiaochen Yang ◽  
Wei Liu ◽  
Yongmei Liu ◽  
...  

Background. Tianma Gouteng Yin (TGY) is widely used for essential hypertension (EH) as adjunctive treatment. Many randomized clinical trials (RCTs) of TGY for EH have been published. However, it has not been evaluated to justify their clinical use and recommendation based on TCM zheng classification.Objectives. To assess the current clinical evidence of TGY as adjunctive treatment for EH with liver yang hyperactivity syndrome (LYHS) and liver-kidney yin deficiency syndrome (LKYDS).Search Strategy. 7 electronic databases were searched until November 20, 2012.Inclusion Criteria. RCTs testing TGY combined with antihypertensive drugs versus antihypertensive drugs were included.Data Extraction and Analyses. Study selection, data extraction, quality assessment, and data analyses were conducted according to the Cochrane standards.Results. 22 RCTs were included. Methodological quality was generally low. Except diuretics treatment group, blood pressure was improved in the other 5 subgroups; zheng was improved in angiotensin converting enzyme inhibitors (ACEIs), calcium channel blockers (CCBs), and “CCB + ACEI” treatment groups. The safety of TGY is still uncertain.Conclusions. No confirmed conclusion about the effectiveness and safety of TGY as adjunctive treatment for EH with LYHS and LKYDS could be made. More rigorous trials are needed to confirm the results.


2014 ◽  
Vol 95 (4) ◽  
pp. 575-581 ◽  
Author(s):  
N Sh Zagidullin ◽  
R Kh Zulkarneev ◽  
E S Scherbakova ◽  
Yu F Safina ◽  
Sh Z Zagidullin

Arterial blood pressure measured by Korotkov’s method is a non-valid predictor for possible cardiovascular events, which requires introduction of new methods of arterial hypertension diagnostics. Recently, the effect on arterial stiffness has become a very important characteristic of antihypertensive drugs overall efficacy. Evaluation of arterial stiffness (central aortic pressure, augmentation index and pulse wave velocity) contributes to more precise cardiovascular risk stratification and reflects target organ damage and the effectiveness of antihypertensive treatment. In particular, pulse wave velocity exceeding 12 m/s is a significant risk factor of cardiovascular events. Arterial compliance can be determined by applanation tonometry, pulse wave shift at the carotid and femoral arteries, finger photoplethysmography, volume pulsoxymetry, echo-tracking, suprasystolic pulse waves recording method and cardio-ankle vascular index. Different effects of antihypertensive drugs on arterial stiffness at the same blood pressure reduction have been repeatedly shown. The article discusses the impact of the most commonly used antihypertensive drugs, including contemporary antihypertensive drugs combinations, on arterial stiffness. Effect of beta-blockers greatly varies depending on the characteristics of the drug, diuretics have neutral effect, calcium antagonists (especially amlodipine) decrease the pulse wave speed and arterial wall stiffness. Both angiotensin-converting enzyme inhibitors and angiotensin-receptor blockers (more data for enalapril, perindopril and valsartan) were effective in decreasing arterial wall stiffness. A significant reduction in arterial wall stiffness was mainly found if antihypertensive drugs combinations were used, especially the combination of calcium antagonists and angiotensin-converting enzyme inhibitors/angiotensin receptor blockers.


Author(s):  
Elias Sanidas ◽  
Maria Velliou ◽  
Dimitrios Papadopoulos ◽  
Anastasia Fotsali ◽  
Dimitrios Iliopoulos ◽  
...  

Abstract Antihypertensive drugs namely angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, calcium channel blockers, beta blockers, and diuretics are among the most clearly documented regimens worldwide with an overall cardioprotective benefit. Given that malignancy is the second leading cause of mortality, numerous observational studies aimed to investigate the carcinogenic potential of these agents with conflicting results. The purpose of this review was to summarize current data in an effort to explore rare side effects and new mechanisms linking antihypertensive drugs with the risk of developing cancer.


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