Prapaisri Sirichakwal - Academia.edu (original) (raw)

Papers by Prapaisri Sirichakwal

European Journal of Nutrition, 1999

The hydrogen breath analysis test was performed in healthy Thai adults to determine lactitol tole... more The hydrogen breath analysis test was performed in healthy Thai adults to determine lactitol tolerance. The study was conducted in 39 individuals (11 males and 28 females) aged 18-41 years. All volunteers agreed to participate in this study after the risks and benefits had been fully explained. Subjects were requested not to consume milk, milk products, or high-vegetable diets for a day and to fast from 10 p.m. of the day preceding the test day. After consumption of the test diet (12 and 20 g of lactose or lactitol, res

PubMed, Nov 1, 1999

This preliminary investigation determined the plasma amino acid concentrations in 136 healthy sub... more This preliminary investigation determined the plasma amino acid concentrations in 136 healthy subjects. The subjects were divided into four groups according to their ages: gr 1; 1-3 years, gr 2; 4-11 years, gr 3; 12-19 years and gr 4; 20-45 years. Comparing among the groups, the results showed that in younger children (age 1-3 years) the essential amino acids were slightly lower than the other groups. A wide range for most amino acids were observed. The ratio of essential (EAA): non-essential amino acid (NEAA) in very young children (1-3 years) was lower than children, adolescents and adults. These ratios were normal (> 0.5). The data have been compared with those from several studies performed in normal healthy subjects of different age groups, races and dietary habits. The results showed that most of the mean values of individual amino acid were higher than others except cystine. The EAA:NEAA ratio of each age group was comparable with other reports. The mean values of plasma amino acids and EAA:NEAA ratio in healthy subjects were determined for diagnosis, follow-up and prognosis of malnourished condition, abnormal amino acid metabolism and as a reference for other purposes.

European Journal of Clinical Nutrition, Mar 9, 2005

Objectives: (a) To measure iron absorption by human subjects from citric acid stabilized fish sau... more Objectives: (a) To measure iron absorption by human subjects from citric acid stabilized fish sauce fortified with ferrous sulfate, ferric ammonium citrate or ferrous lactate and (b) to identify the effect of added citric acid (3 g/l) on iron absorption from ferrous sulfate fortified fish sauce. Design: Iron absorption from the intrinsically labeled compounds was determined via erythrocyte incorporation of isotopic labels (57 Fe and 58 Fe) using a randomized crossover design. In three separate absorption studies, 10 adult women each consumed a basic test meal of rice and vegetable soup seasoned with isotopically labeled, iron fortified fish sauce. Results: Iron absorption was significantly lower from ferrous lactate and from ferric ammonium citrate fortified fish sauce than from ferrous sulfate fortified fish sauce. Fractional iron absorption (geometric mean; À1s.d., þ 1s.d.) was 8.7(3.6; 21.4)% for ferrous lactate compared to 13.0(5.4; 31.4)% from ferrous sulfate, P ¼ 0.003 (study 1) and 6.0(2.5; 14.3)% from ferric ammonium citrate relative to 11.7(4.4; 30.7)% from ferrous sulfate, Po0.001, in study 2. Citric acid added at a molar ratio of B2.5 to iron had no effect on iron absorption from ferrous sulfate (study 3). Iron absorption in the presence of citric acid was 14.1(6.4; 30.8)% compared to 12.0(5.8; 24.7)% in its absence (P ¼ 0.26). Conclusions: Iron absorption was 50-100% higher from ferrous sulphate fortified fish sauce than from fish sauce fortified with ferric ammonium citrate or ferrous lactate. In the presence of citric acid as a chelator, ferrous sulfate would appear to be a useful fortificant for fish sauce.

International Food Research Journal

The present work was aimed to determine the glycaemic index (GI) and glycaemic load (GL) of commo... more The present work was aimed to determine the glycaemic index (GI) and glycaemic load (GL) of commonly consumed Thai fruits for the potential risk of chronic diseases. Healthy subjects consumed 25 g available carbohydrate (fruits and glucose) in random order. Eighteen fruits were classified as low GI (26.5 - 54.8%) including jujube, unripe mango, banana (Kluai-Namwa, Kluai-Khai, and Kluai-Leb-Mu-Nang varieties), guava, tamarind, jackfruit, durian (Monthong and Chanee varieties), tangerine, longan, starfruit, pomelo (Thong Dee variety), sapodilla, white dragon fruit, sala, and rambutan. Fruits with medium GI (55.4 - 69.6%) includes pomelo (Kao Nampheung variety), banana (Kluai Hom variety), red dragon fruit, watermelon, coconut, mangosteen, longkong, ripe mango, papaya, rose apple, and lychee. Pineapple has a high GI value. Most of the studied fruits were classified as low GL except for tamarind, red dragon fruit, mangosteen, lychee, and pineapple which were classified as medium GL. Va...

Expert Review of Ophthalmology

Journal of Nutrition and Metabolism

The aim of the study is to determine dietary lutein and zeaxanthin (L/Z) consumption and to evalu... more The aim of the study is to determine dietary lutein and zeaxanthin (L/Z) consumption and to evaluate its association with macular pigment optical density (MPOD) in Thai subjects. Methods. This study was a cross-sectional study. A total of 120 ophthalmologically healthy subjects aged between 40 and 72 years were recruited from Bangkok and the vicinity area. Demographic data were collected using a questionnaire, while a semiquantitative food frequency questionnaire assessed the L/Z intake. MPOD was determined using the reflectometry method (VISUCAM 500®, Carl Zeiss Meditec AG). Pearson’s correlation coefficient analyzed the relationship between L/Z consumption and MPOD. Results. The mean age of the participants was 50.7 ± 7.5 years. The mean consumption of L/Z was 3.03 ± 2.65 mg per day. The mean MPOD was 0.102 ± 0.023 density units. Consumption of foods rich in L/Z, including ivy gourd (r = 0.217, p < 0.05 ), Chinese flowering cabbage (r = 0.194, p < 0.05 ), balsam pear (r = 0....

Asia Pacific journal of clinical nutrition, 2008

Although under-nutrition problems have been decreasing in Thailand, non-communicable diseases hav... more Although under-nutrition problems have been decreasing in Thailand, non-communicable diseases have become leading causes of death and disability. Food-Based Dietary Guidelines (FBDGs) is a key strategy to promote healthy daily food consumption and appropriate lifestyles. The development consists of qualitative and quantitative parts. The purposes were 1) to assist consumers in making healthy dietary choices and disease prevention; 2) to guide governmental agencies in nutrition implementations, promotion of healthy food products and education programs; 3) to assist national and local agencies in policy formulations and implementations; 4) to assist healthcare providers in primary diseases prevention efforts. The procedures to develop FBDGs specifically were to 1) set nutritional goals based on Thai DRI and RDI; 2) assign the units used for one portion of each food group; 3) quantify the size and number of servings of the major food groups, using the nutritive value calculated by the ...

Thai Journal of Veterinary Medicine, 2008

The experiment was conducted to investigate the effect of supplementary organic and inorganic zin... more The experiment was conducted to investigate the effect of supplementary organic and inorganic zinc on the laying performance and zinc deposition in eggs. One hundred and eighty laying hens (ISA Brown), aged 36 weeks, were randomly divided into 5 treatments with 4 replications of 9 hens each. A corn-soy based diet which was formulated to meet the recommended nutrient requirement especially the level of zinc (60 µµ µµ µg Zn/g diet) was used as the control diet. Both sources of zinc, inorganic (zinc sulfate) and organic (zinc amino acid chelate) were supplemented to provide zinc at levels of 300 and 600 µµ µµ µg/g diet, respectively. Supplementation of both the forms and levels of zinc in hens’ diet had no effect on egg production, egg weight, the amount of feed consumed and feed per kg egg (p>0.05). Increasing the zinc level in the diet increased zinc deposition in the egg yolk (p<0.01). Ninety-nine percentage of the zinc was deposited in the egg yolk. A very low level of zinc w...

Journal of Health Science, 2017

One of the most significant obstacles that hinder the progress of healthy eating promotion interv... more One of the most significant obstacles that hinder the progress of healthy eating promotion intervention is being unable to categorize food according to its nutritional value. The Thai nutrient profile (Thai NP) is a tool developed to solve such problems with an intention to support prevention and control of obesity and non-communicable diseases (NCDs). This study was aimed to test the ability to classify food and also validity of the Thai NP model. Classifications of 22 meals and 12 snacks were done by the Thai NP, 35 experts, and Food Standard Agency nutrient profiling (FSA NP) model which was validated and aimed to be used in regulating food advertising to children in order to prevent obesity and NCDs. The results yielded from the Thai NP were compared with those received from 35 experts and FSA NP model. Comparison between Thai NP and experts, of all rankings, identical ranks were 63.0% for meals and 72.9% for snacks. Fair agreement and very strong positive correlation were obser...

The objective of this study was to determine the glycemic index (GI), glycemic load (GL) and seru... more The objective of this study was to determine the glycemic index (GI), glycemic load (GL) and serum insulin response of alternative rice noodles from mixed Sago Palm flour ( Metroxylon spp.) and Chiang rice flour. Twelve healthy subjects (6 males and 6 females, age 21.2±0.4, normal BMI 20.8±1.3 kg/m 2 , normal FBS 4.7±0.2 Mmol/L and normal HbA1C 5.3±0.2%) were recruited for this study. The alternative rice noodles were consumed in random order between the reference food sessions with at least a week gap between measurements. The blood glucose and serum insulin were collected and evaluated at 0, 15, 30, 45, 60, 90 and 120 minute after food consumption. The alternative rice noodles, small and big rice noodles showed the low GI value (GI=53.6±8.3) and medium GI value (GI=63.1±9.8), respectively. Serum insulin response was significantly lower for the alternative rice noodles compared to glucose solution at 45, 60 and 90 minute (p<0.05). According to GL classification, 1 ladle (60 g) o...

Asia Pacific journal of clinical nutrition, 2011

Dietary guidelines based on 5 food groups was used as a main nutrition education tool until 1996 ... more Dietary guidelines based on 5 food groups was used as a main nutrition education tool until 1996 when food based dietary guidelines (FBDGs) were promoted after 2 years of formulation and development. These FBDGs for the general population were designed to promote desirable and culturally acceptable eating behavior. The nine qualitative guidelines of Thai FBDGs include: 1. eat a variety of foods from each of the five food groups and maintain proper weight, 2. eat adequate rice, or alternate carbohydrate, 3. eat plenty of vegetables and fruits regularly, 4. eat fish, lean meats, eggs, legumes and pulses regularly, 5. drink sufficient amount of milk every day, 6. take moderate amounts of fat, 7. avoid excessive intake of sweet and salty foods, 8. eat clean and uncontaminated foods, and 9. avoid or reduce consumption of alcoholic beverages. In 1998, the quantitative part of Thai FBDGs or food guide model was established as "Nutrition Flag" after rigorous test for understanding...

The American Journal of Clinical Nutrition, 1985

A study was carried out with four healthy young adult men, consuming a self-selected diet, to inv... more A study was carried out with four healthy young adult men, consuming a self-selected diet, to investigate quantitative aspects of the gastrointestinal absorption, urinary excretion, and body retention of egg selenium in comparison with selenite. The approach involved simultaneous consumption of egg biologically labeled (intrinsic) with the stable isotope 74Se and a dose of selenite labeled with 76Se (extrinsic label). Four labeled test diets, given on days 6, 16, 26, and 36 of the study were employed, each differing in their protein source: test diet I, 74Se-labeled egg white; diet II, 74Se-labeled egg yolk (high labeling dose) plus balanced L-amino acid mixture; diet III, 74Se-labeled egg yolk (low labeling dose) plus balanced amino acid mixture; and diet IV, balanced amino acid mixture extrinsically labeled with both 74SeO32- and 76SeO32-. The latter diet was included to assess the magnitude of any cross-isotope methodological bias. Fractional absorption (means +/- SEM) for Diet IV was 0.771 +/- 0.010 for the 74SeO32- and 0.656 +/- 0.021 for the 76SeO32- (ratio: 0.851 +/- 0.020); reflecting a small overall cross-isotope bias. Accepting the measurements made with 74SeO32- as the more accurate, experimentally determined values of absorption for the extrinsic tag were adjusted accordingly. The corrected absorption for these diets (% of dose) was (mean +/- SEM; first value for intrinsic label, second value for extrinsic label): diet I, 54.1 +/- 0.7 and 55.4 +/- 2.2; diet II, 76.7 +/- 0.8 and 83.0 +/- 1.8; diet III, 79.0 +/- 1.5 and 85.2 +/- 4.0.(ABSTRACT TRUNCATED AT 250 WORDS)

The Journal of Nutrition, 1984

Experiments were conducted with laying hens to explore quantita tive aspects of incorporation of ... more Experiments were conducted with laying hens to explore quantita tive aspects of incorporation of 75Se(radioselenium) at various dosing levels and for different chemical forms of an orally administered tracer. Quantitative distribution of the incorporated isotope in egg white and egg yolk was strongly influenced by both the chemical form of the label and the dosing level. The ratio of egg yolk:egg white selenium decreased with increased level of administered dose of selenite In addition, the rate of incorporation and the amount of selenium in whole egg were higher when [75Se]selenomethionine was given as compared to [75Se]selenite. Characterization of the chemical form of selenium in egg white and egg yolk labeled biologically by giving hens radioactive selenite or selenomethionine was performed by classification as: selenite, selenoprotein and fat-bound selenium. Studies were then undertaken to achieve intrinsic labeling of egg white and egg yolk with stable isotope 74Sefor pur poses of exploring selenium bioavailability in humans. Enrichments of 74Se in egg white and egg yolk of hens given high dose selenite (54.4 Â¡ig 74Se)were 20-and 28-fold, whereas in egg white and egg yolk of hens given low dose (10.9 fig 74Se)they were 4and 10-fold the level of natural abundance, respectively. The stable isotope-labeling studies indicated that a 7-day sequential dosing protocol with 20-100 Â¡ig Se per dose permitted sufficient enrichment of egg white (only high dose) and of yolk with the stable isotope 74Sefor use in human metabolic studies.

Adiposity - Epidemiology and Treatment Modalities, 2017

Food and nutrition education is globally recognized as the most efficient tool for reducing the r... more Food and nutrition education is globally recognized as the most efficient tool for reducing the risks of non-communicable diseases (NCDs). For decades, different nutrition labelling formats found on the back of food packages have been used as educational tools to provide information on amounts of nutrients for preventing both under-and over-nutrition. However, these traditional panels have proven to be ineffective for consumer education due to their complexity. Other systems, so-called 'Simplified Nutrition Labelling', which are normally shown on the front of a food package, were then introduced as 'Front-of-Pack, FOP' labelling. These labelling panels normally contain only the nutrients that relate to NCDs and that should be limited for consumption. At least four types of FOP nutrition labelling panels exist, namely, nutrient specific, summary indicator, food group information and hybrids. These panels using different patterns provide consumers with three types of information: non-evaluative, evaluative or interpretative and conclusive. In this chapter, the advantages and disadvantages of different types of nutrition labelling are discussed, especially their roles in reducing the risk of obesityrelated NCDs in a population.

Journal of the National Research Council of Thailand, 2002

The Journal of nutrition, Jan 25, 2015

Few data exist on the ability of postmenopausal women to absorb calcium from diets habitually low... more Few data exist on the ability of postmenopausal women to absorb calcium from diets habitually low in calcium. The objective of this study was to evaluate fractional calcium absorption from a green leafy vegetable vs. milk in relation to vitamin D status. We measured fractional calcium absorption from both a dairy- and plant-based source in 19 postmenopausal Thai women (aged 52-63 y) with low calcium consumption (350 ± 207 mg/d) in relation to serum parathyroid hormone (PTH) and serum 25-hydroxyvitamin D [25(OH)D]. Fractional calcium absorption was measured using a triple stable calcium isotope method based on isotope recovery in a 28-h urine collection. Two extrinsically labeled test meals were ingested in random order: a green leafy vegetable (cassia) ingested along with (43)Ca or a glass of milk containing (44)Ca. Women received intravenous (42)Ca with the first test meal. In 19 postmenopausal women studied (mean age, 56.9 ± 3.4 y), ~95% were 25(OH)D sufficient (≥20 μg/L). Serum 2...

Education for health (Abingdon, England), 2009

To describe the development, process and outcome evaluation of a culturally tailored diabetes pre... more To describe the development, process and outcome evaluation of a culturally tailored diabetes prevention education program for community healthcare workers (CHCWs) in Thailand. A tailored diabetes prevention education program was designed based on formative research and implemented with 35 CHCWs in semi-urban areas in Chiang Mai province, Thailand. Modules were delivered over eight group classes and eight self-directed E-learning sessions (www.FitThai.org). The program incorporated problem-based learning, discussion, reflection, community-based application, self-evaluation and on-line support. The frequency that students accessed on-line materials, including videotaped lectures, readings, monthly newsletters and community resources, was documented. Participant satisfaction was assessed through three questionnaires. Knowledge was assessed through pre-post testing. Three-quarters of participants attended all eight classes and no participant attended fewer than six. On-line support and...

Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 2006

To investigate whether daily dietary fiber intake at the reference level has any impact on studie... more To investigate whether daily dietary fiber intake at the reference level has any impact on studied hormones in a population of Thai women. Twenty-eight healthy Thai women (aged 18-20 years, BMI 18.5-25 kg/m2) with a history of regular menstrual cycles committed themselves to prepared food without changing the usual ratio of three major macronutrients. Dietary fiber from natural source at the amount of 8-10 g/day equal to their regular consumption was added to their daily diet for one menstrual cycle, then, increased to be 25-30 g/day for another 2 successive cycles. A single blood sample on midluteal day (day 18-23) was obtained in all three cycles. Plasma luteinizing hormone, follicle stimulating hormone, prolactin, estradiol, progesterone, cortisol, and insulin together with total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides were analyzed. The measured hormones and lipids did not change significantly when compared betwee...

Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 2005

To determine the daily energy and nutrient intake of the active duty army personnel at the Army S... more To determine the daily energy and nutrient intake of the active duty army personnel at the Army Special Warfare Command (SWC) Unit during home stations. A cross-sectional survey was carried out at the SWC unit in Lopburi province, Central region of Thailand. One hundred and eight personnel, who were at home stations, volunteered for participation in the present study. Three-day food records were used for evaluating nutrient intakes. Dietary data were analysed using the Nutritionist III programme and expressed as mean and standard deviation. All 108 active duty army personnel were men with the mean age of 37.0 years (SD 7.4). The mean actual energy intake was 2,304 kcal/day (SD 645), which accounted for 109% of Dietary Reference Intake for Thais (DRI). Most mean intakes of vitamins and minerals were above DRI levels, including vitamin A, vitamin B2, niacin, vitamin C, and iron. However, their average intakes of vitamin B1 and calcium were lower. The present study demonstrated the und...

Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 1993

Vitamin E and selenium statuses were studied in thalassemic children in comparison with 16 normal... more Vitamin E and selenium statuses were studied in thalassemic children in comparison with 16 normal controls. Twelve Hb H disease, 46 beta-thal/Hb E and 7 beta-thal major patients had lower plasma vitamin E level than controls but plasma vitamin E/total lipids ratio of Hb H disease subjects was not different from normal. Twelve Hb H disease and 33 beta-thal/Hb E patients had normal RBC Se but increased RBC GSH-Px activity. Ten vitamin E-deficient thalassemic subjects had been supplemented with 200 mg of oral vitamin E for 4-8 weeks. After supplementation, their plasma vitamin E increased and H2O2 hemolysis decreased to normal values. Their RBC GSH-Px activity also decreased but hematocrit did not change significantly. The results demonstrate that some types of thalassemic patients have vitamin E deficiency and support that vitamin E and selenium have related functions in the prevention of RBC oxidation. Vitamin E supplementation increased RBC resistance to oxidative damage.