Displaying publications 1 - 20 of 732 in total

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  1. Liu JJ, Sum CF, Tavintharan S, Yeoh LY, Ng XW, Moh AM, et al.
    Atherosclerosis, 2014 Oct;236(2):286-91.
    PMID: 25112799 DOI: 10.1016/j.atherosclerosis.2014.07.017
    OBJECTIVE: Type 2 diabetes (T2DM) among the young population has become a serious concern globally, presumably due to the rising trend of obesity. Compared to other forms of diabetes, young-onset T2DM experiences more cardiovascular events and other vascular complications although the underlying mechanisms remain largely unknown. Increased arterial stiffness is a hallmark of vasculopathy. We aim to study the clinical and metabolic determinants of arterial stiffness in a cohort of multi-ethnic Asians with young-onset T2DM.
    METHODS: 179 subjects with T2DM onset age below 30 years old were selected in this cross sectional study. Arterial stiffness was assessed by carotid-femoral pulse wave velocity (PWV).
    RESULTS: PWV was correlated with age, duration of diabetes, systolic blood pressure, alanine aminotransferase, urinary albumin-to-creatinine ratio (ACR) and eGFR in bivariate correlation analysis. However, PWV was only significantly correlated with body mass index (BMI), waist circumference, urinary ACR and eGFR after adjustment for age. Overweight individuals with young-onset T2DM had significantly higher PWV levels compared to their lean counterparts (7.3 ± 2.4 m/s vs 6.4 ± 2.3 m/s, p = 0.072 and p < 0.0001 without and with adjustment for age, respectively). Multivariable regression models revealed that age, BMI, eGFR and usage of insulin were independently associated with PWV. These 4 variables explained 35.5% variance in PWV levels.
    CONCLUSION: Age, BMI, renal function and insulin usage are the main determinants of PWV levels in Asians with young-onset T2DM. Notably, obesity is a modifiable determinant of arterial stiffness independent of high blood pressure, dyslipidemia and hyperglycemia in this population.
    Matched MeSH terms: Blood Pressure
  2. Chisholm JS, Woodson RH, da Costa Woodson EM
    Early Hum Dev, 1978 Jul;2(2):171-8.
    PMID: 720272
    The neonatal period is being recognized as an important period for the development of patterns of interaction between mother and infant, and infant state has been shown to have a significant impact on mother--infant interactions. A major dimension of infant state, with implications for this interaction and for the development of later behaviour disorders, is the infant's irritability. Research with Navajo, Malay, Chinese and Tamil mothers and infants showed that normal variation in maternal blood pressure during pregnancy was related to newborn irritability as assessed with the Brazelton Scale. This relationship is discussed in terms of possible underlying mechanisms.
    Matched MeSH terms: Blood Pressure*
  3. Abdul Rahman AR, Wang JG, Kwong GM, Morales DD, Sritara P, Sukmawan R, et al.
    Asia Pac Fam Med, 2015;14(1):2.
    PMID: 25729324 DOI: 10.1186/s12930-015-0018-3
    BACKGROUND: Hypertension is one of the world's most common health conditions and is a leading risk factor for mortality. Although blood pressure can be modified, there is a large proportion of patients whose blood pressure remains uncontrolled. The aim of this study, termed Edvantage 360°, was to gain a deeper understanding of hypertension management in Asia from the perspective of patients and doctors, and to propose strategies to improve blood pressure control.
    METHODS: Conducted in Hong Kong, Indonesia, Malaysia, the Philippines, South Korea, Taiwan, and Thailand, Edvantage 360° was a mixed-methods observational study that used both qualitative and quantitative elements: qualitative interviews and focus groups with patients (N = 110), quantitative interviews with patients (N = 709), and qualitative interviews with doctors (N = 85).
    RESULTS: This study found that, although there is good understanding of the causes and consequences of hypertension among Asian patients, there is a lack of urgency to control blood pressure. Doctors and patients have different expectations of each other and a divergent view on what constitutes successful hypertension management. We also identified a fundamental gap between the beliefs of doctors and patients as to who should be most responsible for the patients' hypertension management. In addition, because patients find it difficult to comply with lifestyle modifications (often because of a decreased understanding of the changes required), adherence to medication regimens may be less of a limiting factor than doctors believe.
    CONCLUSIONS: Doctors may provide better care by aligning with their patients on a common understanding of successful hypertension management. Doctors may also find it helpful to provide a more personalized explanation of any needed lifestyle modifications. The willingness of the doctor to adjust their patient interaction style to form a 'doctor-patient team' is important. In addition, we recommend that doctors should not attribute ineffectiveness of the treatment plan to patient non-adherence to medications, but rather adjust the medication regimen as needed.
    KEYWORDS: Attitude to health; Hong Kong; Hypertension; Indonesia; Malaysia; Philippines; Qualitative research; South Korea; Taiwan; Thailand
    Matched MeSH terms: Blood Pressure; Blood Pressure Determination
  4. Zulkifli SN
    Singapore Med J, 1992 Oct;33(5):474-7.
    PMID: 1455271
    The significance of high blood pressure to cardio- and cerebrovascular disease is well recognized. The associated mortality and morbidity risks call for multiple approaches to control the development of high blood pressure. Recent studies have shown that precursors of cardiovascular disorders may be apparent from a young age, and that these can persist and contribute to disease in later life. With regard to blood pressure, the phenomenon of persisting at the same rank has been referred to as tracking. This allows for the possible identification of high-risk groups, for whom early intervention can be initiated. In this paper, some of the findings of studies on blood pressure tracking are reviewed.
    Matched MeSH terms: Blood Pressure*
  5. Nur Khairunisa Abu Talip, Zulkifli Abdul Kadir
    MyJurnal
    Resistance training (RT) refers to a method of physical conditioning of complex programming which consists of progressive and various training techniques to achieve the desired training goals. An appropriate programme design is the key to success; where exercise selection is one of the critical factors. The selection of exercise will expose different stimulation as in the application of the specific adaptation on imposed demand principle. The option of choosing either bilateral (BI) or unilateral (UNI) exercise is an important decision to perform in the construction of any strength or RT programme. This study aimed to investigate the physiological responses of unilateral versus bilateral acute RT on heart rate (HR), blood pressure (BP) and rate of perceived exertion (RPE). Sixteen (n = 16) trained women with mean age of 23.31 (SD = 1.35) years old went through a total body exercise session for each unilateral and bilateral protocols which both consisted of major muscles group for 80% 1RM, 10 repetitions to maximal effort for 3 sets. The results revealed that all variables examined including HR, systolic blood pressure (SBP), diastolic blood pressure (DBP) and RPE were statistically changed (p < .001) across the times. Apart from that, unilateral and bilateral RT imposed significantly different stimulus on SBP (p < .05).
    Matched MeSH terms: Blood Pressure; Blood Pressure Determination
  6. Xia W, Tang N, Kord-Varkaneh H, Low TY, Tan SC, Wu X, et al.
    Pharmacol Res, 2020 11;161:105113.
    PMID: 32755613 DOI: 10.1016/j.phrs.2020.105113
    BACKGROUND AND AIM: Previous studies lack consistent conclusions as to whether astaxanthin is actually linked to various health benefits as claimed. Here, we attempt to unravel the association of astaxanthin consumption with selected health benefits by performing a systematic review and meta-analysis.

    METHODS: Online literature search databases including Scopus, Web of Science, PubMed/Medline, Embase and Google Scholar were searched to discover relevant articles available up to 17 March 2020. We used mean changes and SD of the outcomes to assess treatment response from baseline and mean difference, and 95 % CI were calculated to combined data and assessment effect sizes in astaxanthin and control groups.

    RESULTS: 14 eligible articles were included in the final quantitative analysis. Current study revealed that astaxanthin consumption was not associated with FBS, HbA1c, TC, LDL-C, TG, BMI, BW, DBP, and SBP. We did observe an overall increase in HDL-C (WMD: 1.473 mg/dl, 95 % CI: 0.319-2.627, p = 0.012). As for the levels of CRP, only when astaxanthin was administered (i) for relatively long periods (≥ 12 weeks) (WMD: -0.528 mg/l, 95 % CI: -0.990 to -0.066), and (ii) at high dose (> 12 mg/day) (WMD: -0.389 mg/dl, 95 % CI: -0.596 to -0.183), the levels of CRP would decrease.

    CONCLUSION: In summary, our systematic review and meta-analysis revealed that astaxanthin consumption was associated with increase in HDL-C and decrease in CRP. Significant associations were not observed for other outcomes.

    Matched MeSH terms: Blood Pressure/drug effects*
  7. Das S, Mohamed IN, Teoh SL, Thevaraj T, Ku Ahmad Nasir KN, Zawawi A, et al.
    Mini Rev Med Chem, 2020;20(7):626-635.
    PMID: 31969099 DOI: 10.2174/1389557520666200122124445
    The incidence of Metabolic Syndrome (MetS) has risen globally. MetS includes a combination of features, i.e. blood glucose impairment, excess abdominal/body fat dyslipidemia and elevated blood pressure. Other than conventional treatment with drugs, the main preventive approaches include lifestyle changes, weight loss, diet control and adequate exercise also proves to be beneficial. MicroRNAs (miRNAs) are small non-coding RNAs that play critical regulatory roles in most biological and pathological processes. In the present review, we discuss various miRNAs which are related to MetS by targeting various organs, including the pancreas, liver, skeletal muscles and adipose tissues. These miRNAs have the effect on insulin production and secretion (miR-9, miR-124a, miR-130a,b, miR152, miR-335, miR-375), insulin resistance (miR-29), adipogenesis (miR-143, miR148a) and lipid metabolism (miR-192). We also discuss the miRNAs as potential biomarkers and future therapeutic targets. This review may be beneficial for molecular biologists and clinicians dealing with MetS.
    Matched MeSH terms: Blood Pressure
  8. Nabishah BM, Khalid BA, Morat PB, Zanariyah A
    Exp. Clin. Endocrinol. Diabetes, 1998;106(5):419-24.
    PMID: 9831309
    This study tested the possibility of adrenal autotransplantation in rats. Since the cortex and the medulla of the adrenal gland were from different origin embryologically, either whole adrenal glands (ADR), or capsule and cortex (CAP) or medulla (MED) were autotransplanted in the subcutaneous tissue. The functions of regenerated adrenal nodules were tested by measuring plasma corticosterone levels every fortnight. At the end of 9 weeks the rats were exposed to hypovolemic shock followed by naloxone injection to reverse the shock response. Results showed that rats transplanted with either cortex or whole adrenal started secreting corticosterone at 5 weeks post-transplantation (107.73 +/- 21.98 ng/ml, 126.04 +/- 48.41 ng/ml, respectively). Corticosterone levels increased to the value which were not significantly different from control by 9 weeks post-transplantation. However, rats transplanted with adrenal medulla showed very low corticosterone levels. Nine weeks post-transplantation, the mean blood pressure (MBP) of the CAP group was 135 +/- 13 mmHg and was not significantly different from sham-operated controls, whereas MBP of MED group was significantly lower than sham-operated animals (99 +/- 11 mmHg versus 141 +/- 9 mmHg). The MBP of the ADR group was also lower compared to sham-operated controls (112 +/- 17 mmHg P < 0.05). The MBP of the adrenal group was not statistically significant compared to the CAP group. After 1% body weight haemorrhage, the MBP decreased significantly in ADR (45 +/- 5 mmHg, P < 0.05) and MED group (36 +/- 9 mmHg, P < 0.001) compared to sham-operated rats (78 +/- 11 mmHg) but not in the CAP (56 +/- 9 mmHg). It was concluded that autotransplanted whole adrenal or adrenocortical tissues survived subcutaneously and produced sufficient corticosterone to alleviate haemorrhagic shock. Adrenal medullary tissue failed to regenerate subcutaneously and the presence of adrenal medullary tissue may suppressed the growth of transplanted adrenal gland.
    Matched MeSH terms: Blood Pressure
  9. Ramalingam A, Budin SB, Mohd Fauzi N, Ritchie RH, Zainalabidin S
    Front Pharmacol, 2019;10:1493.
    PMID: 31920673 DOI: 10.3389/fphar.2019.01493
    Increased exposure to nicotine contributes to the development of cardiac dysfunction by promoting oxidative stress, fibrosis, and inflammation. These deleterious events altogether render cardiac myocytes more susceptible to acute cardiac insults such as ischemia-reperfusion (I/R) injury. This study sought to elucidate the role of angiotensin II type I (AT1) receptors in cardiac injury resulting from prolonged nicotine administration in a rat model. Male Sprague-Dawley rats were given nicotine (0.6 mg/kg ip) for 28 days to induce cardiac dysfunction, alone or in combination with the AT1 receptor antagonist, irbesartan (10 mg/kg, po). Vehicle-treated rats were used as controls. Rat hearts isolated from each experimental group at study endpoint were examined for changes in function, histology, gene expression, and susceptibility against acute I/R injury determined ex vivo. Rats administered nicotine alone exhibited significantly increased cardiac expression of angiotensin II and angiotensin-converting enzyme (ACE) in addition to elevated systolic blood pressure (SBP) and heart rate. Furthermore, nicotine administration markedly reduced left ventricular (LV) performance with concomitant increases in myocardial oxidative stress, fibrosis, and inflammation. Concomitant treatment with irbesartan attenuated these effects, lowering blood pressure, heart rate, oxidative stress, and expression of fibrotic and inflammatory genes. Importantly, the irbesartan-treated group also manifested reduced susceptibility to I/R injury ex vivo. These findings suggest that AT1 receptors play an important role in nicotine-induced cardiac dysfunction, and pharmacological approaches targeting cardiac AT1 receptors may thus benefit patients with sustained exposure to nicotine.
    Matched MeSH terms: Blood Pressure
  10. Ng CG, Lai KT, Tan SB, Sulaiman AH, Zainal NZ
    J Palliat Med, 2016 09;19(9):917-24.
    PMID: 27110900 DOI: 10.1089/jpm.2016.0046
    BACKGROUND: Palliative cancer patients suffer from high levels of distress. There are physiological changes in relation to the level of perceived distress.

    OBJECTIVE: To study the efficacy of 5 minutes of mindful breathing (MB) for rapid reduction of distress in a palliative setting. Its effect to the physiological changes of the palliative cancer patients was also examined.

    METHODS: This is a randomized controlled trial. Sixty palliative cancer patients were recruited. They were randomly assigned to either 5 minutes of MB or normal listening arms. The changes of perceived distress, blood pressure, pulse rate, breathing rate, galvanic skin response, and skin surface temperature of the patients were measured at baseline, after intervention, and 10 minutes post-intervention.

    RESULTS: There was significant reduction of perceived distress, blood pressure, pulse rate, breathing rate, and galvanic skin response; also, significant increment of skin surface temperature in the 5-minute MB group. The changes in the 5-minute breathing group were significantly higher than the normal listening group.

    CONCLUSION: Five-minute MB is a quick, easy to administer, and effective therapy for rapid reduction of distress in palliative setting. There is a need for future study to establish the long-term efficacy of the therapy.

    Matched MeSH terms: Blood Pressure
  11. Siti Fatimah, A.G., Aniza, I., Shamsuddin, K., Zailiza, S.
    MyJurnal
    A cross-sectional study was carried out in July-October 2012 in UKM to remeasure, evaluate and compare the changes in health services utilization level among women staff in UKM with a previous study done in 2001 and its influencing factors. The services studied were blood pressure (BP) measurement and Pap smear test. A total of 234 respondents aged between 18 and 55 were selected using stratified random sampling from Bangi, Kuala Lumpur and UKMMC, Malaysia. Data was collected via self-administered questionnaire and was analyzed by using SPSS version 17.0. Majority 85.9% of the respondents were found to have utilized at least one BP measurement which is higher compared to previous study. The Pap smear test, 64.5% of women have had a Pap smear test done also higher compared to previous study. Multivariate analysis shows the factors associated with BP measurement are age (OR 2.7, CI 95% 1.2, 6.3), family history of general health problems (OR 3.4, CI 95% 1.5, 7.6), and health staff influence (OR 5.2, CI 95% 1.1, 25.5). The factors associated with Pap smear test are marital status (OR 62.8, CI 95% 7.2, 546.4), general health problems (OR 2.3, CI 95% 1.2, 4.5), family planning (OR 6.9, CI 95% 3.0, 16.5) and self-interest (OR 3.3, CI 95%, 1.3, 8.6). The level of health services utilization on BP measurement and Pap smear test in 2012 is higher than 2001. For both BP measurement and Pap smear test the determinant factors are differed in the aforesaid years.
    Matched MeSH terms: Blood Pressure
  12. Bosch J, Lonn EM, Jung H, Zhu J, Liu L, Lopez-Jaramillo P, et al.
    Eur Heart J, 2021 08 17;42(31):2995-3007.
    PMID: 33963372 DOI: 10.1093/eurheartj/ehab225
    AIMS: Rosuvastatin (10 mg per day) compared with placebo reduced major adverse cardiovascular (CV) events by 24% in 12 705 participants at intermediate CV risk after 5.6 years. There was no benefit of blood pressure (BP) lowering treatment in the overall group, but a reduction in events in the third of participants with elevated systolic BP. After cessation of all the trial medications, we examined whether the benefits observed during the active treatment phase were sustained, enhanced, or attenuated.

    METHODS AND RESULTS: After the randomized treatment period (5.6 years), participants were invited to participate in 3.1 further years of observation (total 8.7 years). The first co-primary outcome for the entire length of follow-up was the composite of myocardial infarction, stroke, or CV death [major adverse cardiovascular event (MACE)-1], and the second was MACE-1 plus resuscitated cardiac arrest, heart failure, or coronary revascularization (MACE-2). In total, 9326 (78%) of 11 994 surviving Heart Outcomes Prevention Evaluation (HOPE)-3 subjects consented to participate in extended follow-up. During 3.1 years of post-trial observation (total follow-up of 8.7 years), participants originally randomized to rosuvastatin compared with placebo had a 20% additional reduction in MACE-1 [95% confidence interval (CI), 0.64-0.99] and a 17% additional reduction in MACE-2 (95% CI 0.68-1.01). Therefore, over the 8.7 years of follow-up, there was a 21% reduction in MACE-1 (95% CI 0.69-0.90, P = 0.005) and 21% reduction in MACE-2 (95% CI 0.69-0.89, P = 0.002). There was no benefit of BP lowering in the overall study either during the active or post-trial observation period, however, a 24% reduction in MACE-1 was observed over 8.7 years.

    CONCLUSION: The CV benefits of rosuvastatin, and BP lowering in those with elevated systolic BP, compared with placebo continue to accrue for at least 3 years after cessation of randomized treatment in individuals without cardiovascular disease indicating a legacy effect.

    TRIAL REGISTRATION NUMBER: NCT00468923.

    Matched MeSH terms: Blood Pressure
  13. Palafox B, McKee M, Balabanova D, AlHabib KF, Avezum AJ, Bahonar A, et al.
    Int J Equity Health, 2016 12 08;15(1):199.
    PMID: 27931255
    BACKGROUND: Effective policies to control hypertension require an understanding of its distribution in the population and the barriers people face along the pathway from detection through to treatment and control. One key factor is household wealth, which may enable or limit a household's ability to access health care services and adequately control such a chronic condition. This study aims to describe the scale and patterns of wealth-related inequalities in the awareness, treatment and control of hypertension in 21 countries using baseline data from the Prospective Urban and Rural Epidemiology study.

    METHODS: A cross-section of 163,397 adults aged 35 to 70 years were recruited from 661 urban and rural communities in selected low-, middle- and high-income countries (complete data for this analysis from 151,619 participants). Using blood pressure measurements, self-reported health and household data, concentration indices adjusted for age, sex and urban-rural location, we estimate the magnitude of wealth-related inequalities in the levels of hypertension awareness, treatment, and control in each of the 21 country samples.

    RESULTS: Overall, the magnitude of wealth-related inequalities in hypertension awareness, treatment, and control was observed to be higher in poorer than in richer countries. In poorer countries, levels of hypertension awareness and treatment tended to be higher among wealthier households; while a similar pro-rich distribution was observed for hypertension control in countries at all levels of economic development. In some countries, hypertension awareness was greater among the poor (Sweden, Argentina, Poland), as was treatment (Sweden, Poland) and control (Sweden).

    CONCLUSION: Inequality in hypertension management outcomes decreased as countries became richer, but the considerable variation in patterns of wealth-related inequality - even among countries at similar levels of economic development - underscores the importance of health systems in improving hypertension management for all. These findings show that some, but not all, countries, including those with limited resources, have been able to achieve more equitable management of hypertension; and strategies must be tailored to national contexts to achieve optimal impact at population level.

    Matched MeSH terms: Blood Pressure
  14. Schwalm JR, McCready T, Lamelas P, Musa H, Lopez-Jaramillo P, Yusoff K, et al.
    Am Heart J, 2018 09;203:57-66.
    PMID: 30015069 DOI: 10.1016/j.ahj.2018.06.004
    BACKGROUND: Cardiovascular disease is the leading cause of death throughout the world, with the majority of deaths occurring in low- and middle-income countries. Despite clear evidence for the benefits of blood pressure reduction and availability of safe and low-cost medications, most individuals are either unaware of their condition or not adequately treated.

    OBJECTIVE: The primary objective of this study is to evaluate whether a community-based, multifaceted intervention package primarily provided by nonphysician health workers can improve long-term cardiovascular risk in people with hypertension by addressing identified barriers at the patient, health care provider, and health system levels.

    METHODS/DESIGN: HOPE-4 is a community-based, parallel-group, cluster randomized controlled trial involving 30 communities (1,376 participants) in Colombia and Malaysia. Participants ≥50 years old and with newly diagnosed or poorly controlled hypertension were included. Communities were randomized to usual care or to a multifaceted intervention package that entails (1) detection, treatment, and control of cardiovascular risk factors by nonphysician health workers in the community, who use tablet-based simplified management algorithms, decision support, and counseling programs; (2) free dispensation of combination antihypertensive and cholesterol-lowering medications, supervised by local physicians; and (3) support from a participant-nominated treatment supporter (either a friend or family member). The primary outcome is the change in Framingham Risk Score after 12 months between the intervention and control communities. Secondary outcomes including change in blood pressure, lipid levels, and Interheart Risk Score will be evaluated.

    SIGNIFICANCE: If successful, the study could serve as a model to develop low-cost, effective, and scalable strategies to reduce cardiovascular risk in people with hypertension.

    Matched MeSH terms: Blood Pressure/physiology*
  15. Ramli AS, Daher AM, Nor-Ashikin MN, Mat-Nasir N, Ng KK, Miskan M, et al.
    Biomed Res Int, 2013;2013:760963.
    PMID: 24175300 DOI: 10.1155/2013/760963
    Metabolic syndrome (MetS) is a steering force for the cardiovascular diseases epidemic in Asia. This study aimed to compare the prevalence of MetS in Malaysian adults using NCEP-ATP III, IDF, and JIS definitions, identify the demographic factors associated with MetS, and determine the level of agreement between these definitions. The analytic sample consisted of 8,836 adults aged ≥30 years recruited at baseline in 2007-2011 from the Cardiovascular Risk Prevention Study (CRisPS), an ongoing, prospective cohort study involving 18 urban and 22 rural communities in Malaysia. JIS definition gave the highest overall prevalence (43.4%) compared to NCEP-ATP III (26.5%) and IDF (37.4%), P < 0.001. Indians had significantly higher age-adjusted prevalence compared to other ethnic groups across all MetS definitions (30.1% by NCEP-ATP III, 50.8% by IDF, and 56.5% by JIS). The likelihood of having MetS amongst the rural and urban populations was similar across all definitions. A high level of agreement between the IDF and JIS was observed (Kappa index = 0.867), while there was a lower level of agreement between the IDF and NCEP-ATP III (Kappa index = 0.580). JIS definition identified more Malaysian adults with MetS and therefore should be recommended as the preferred diagnostic criterion.
    Matched MeSH terms: Blood Pressure
  16. Yusoff K
    Med J Malaysia, 2007 Jun;62(2):95-6.
    PMID: 18705437 MyJurnal

    Getting through major surgeries safely and timely with success and minimal complications is one of the great achievements of modern medicine. As the surgical techniques and the organs and systems involved become more varied, there are a number of important issues which determine the success of surgery. But one overriding theme is cardiovascular stability during and immediately after surgery.
    Matched MeSH terms: Blood Pressure*
  17. Hoh BP, Abdul Rahman T, Yusoff K
    Hereditas, 2019;156:1.
    PMID: 30636949 DOI: 10.1186/s41065-019-0080-1
    Prevalence of hypertension (HTN) varies substantially across different populations. HTN is not only common - affecting at least one third of the world's adult population - but is also the most important driver for cardiovascular diseases. Yet up to a third of hypertensive patients are resistant to therapy, contributed by secondary hypertension but more commonly the hitherto inability to precisely predict response to specific antihypertensive agents. Population and individual genomics information could be useful in guiding the selection and predicting the response to treatment - an approach known as precision medicine. However this cannot be achieved without the knowledge of genetic variations that influence blood pressure (BP). A number of evolutionary factors including population demographics and forces of natural selection may be involved. This article explores some ideas on how natural selection influences BP regulation in ethnically and geographically diverse populations that could lead to them being susceptible to HTN. We explore how such evolutionary factors could impact the implementation of precision medicine in HTN. Finally, in order to ensure the success of precision medicine in HTN, we call for more initiatives to understand the genetic architecture within and between diverse populations with ancestry from different parts of the world, and to precisely classify the intermediate phenotypes of HTN.
    Matched MeSH terms: Blood Pressure*
  18. Sanip Z, Hanaffi SH, Ahmad I, Yusoff SS, Rasool AH, Yusoff HM
    Tob Induc Dis, 2015;13(1):32.
    PMID: 26346914 DOI: 10.1186/s12971-015-0052-9
    BACKGROUND: Studies have demonstrated that secondhand smoke (SHS) exposure could impair endothelial function. However, the effect of SHS exposure specifically on microvascular endothelial function is not well understood. This study aimed to determine the effects of SHS exposure on microvascular endothelial function among non-smoking, generally healthy women.

    FINDINGS: We studied 127 women; and based on their hair nicotine levels measured using gas chromatography-mass spectrometry, 25 of them were categorized as having higher hair nicotine levels, 25 were grouped as having lower hair nicotine and 77 women were grouped into the non-detected group. The non-detected group did not have detectable levels of hair nicotine. Anthropometry, blood pressure (BP), lipid profile and high-sensitivity C-reactive protein (hsCRP) were measured accordingly. Microvascular endothelial function was assessed non-invasively using laser Doppler fluximetry and the process of iontophoresis involving acetylcholine and sodium nitroprusside as endothelium-dependent and endothelium-independent vasodilators respectively. The mean hair nicotine levels for higher and lower hair nicotine groups were 0.74 (1.04) and 0.05 (0.01) ng/mg respectively. There were no significant differences in anthropometry, BP, lipid profile and hsCRP between these groups. There were also no significant differences in the microvascular perfusion and endothelial function between these groups.

    CONCLUSION: In this study, generally healthy non-smoking women who have higher, lower and non-detected hair nicotine levels did not show significant differences in their microvascular endothelial function. Low levels of SHS exposure among generally healthy non-smoking women may not significantly impair their microvascular endothelial function.

    Matched MeSH terms: Blood Pressure; Blood Pressure Determination
  19. Suhaimi MZ, Sanip Z, Jan HJ, Yusoff HM
    Ann Saudi Med, 2016;36(6):404-408.
    PMID: 27920412
    BACKGROUND: Exposure to nicotine via tobacco smoking may influence leptin release and decrease food intake among smokers. However, the effect of nicotine exposure on leptin and food intake among different nicotine dependent groups is unclear.

    OBJECTIVE: We aimed to measure leptin and calorie intake among different nicotine dependent groups.

    DESIGN: Cross-sectional study.

    SETTING: Research department in school of medical sciences.

    PATIENTS AND METHODS: Subjects were selected by purposive (non-probability) sampling and categorized as having low, moderate and high nicotine dependency based on the Fagerstrom Test for Nicotine Dependence (FTND) score. Diet was recorded by interview. Anthropometry, blood pressure, body composition, lipid profile, and physical activity level were measured accordingly. Fasting serum leptin was measured using a commercial ELISA kit.

    MAIN OUTCOME MEASURE(S): Nicotine dependency, 24-hour diet, clinical anthropometric and clinical measurements.

    RESULTS: In 107 Malay male smokers leptin concentration was inversely correlated with nicotine dependence. However, body weight, smoking period, blood pressure, body composition, lipid profile and physical activity level were not significantly different among low, moderately and highly dependent smoking groups. Leptin concentration and total calorie intake were also not significantly different among these groups.

    CONCLUSION: Leptin concentration was inversely correlated with nicotine dependence, but leptin concentration and total calorie intake status were not significantly different among our different nicotine dependency subjects.

    LIMITATIONS: Purposive sampling for subject recruitment and inaccurate information in the self-administered questionnaire.

    Matched MeSH terms: Blood Pressure
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