The pharmacokinetics and pharmacodynamics of atovaquone and proguanil for the treatment of uncomplicated falciparum malaria in third-trimester pregnant women

2005 ◽  
Vol 61 (8) ◽  
pp. 573-582 ◽  
Author(s):  
K. Na-Bangchang ◽  
C. Manyando ◽  
R. Ruengweerayut ◽  
D. Kioy ◽  
M. Mulenga ◽  
...  
2006 ◽  
Vol 62 (12) ◽  
pp. 1021-1031 ◽  
Author(s):  
Rose McGready ◽  
Kasia Stepniewska ◽  
Niklas Lindegardh ◽  
Elizabeth A. Ashley ◽  
Yar La ◽  
...  

2010 ◽  
Vol 54 (11) ◽  
pp. 4780-4788 ◽  
Author(s):  
Sofia Friberg Hietala ◽  
Andreas Mårtensson ◽  
Billy Ngasala ◽  
Sabina Dahlström ◽  
Niklas Lindegårdh ◽  
...  

ABSTRACT The combination of artemether (ARM) and lumefantrine is currently the first-line treatment of uncomplicated falciparum malaria in mainland Tanzania. While the exposure to lumefantrine has been associated with the probability of adequate clinical and parasitological cure, increasing exposure to artemether and the active metabolite dihydroartemisinin (DHA) has been shown to decrease the parasite clearance time. The aim of this analysis was to describe the pharmacokinetics and pharmacodynamics of artemether, dihydroartemisinin, and lumefantrine in African children with uncomplicated malaria. In addition to drug concentrations and parasitemias from 50 Tanzanian children with falciparum malaria, peripheral parasite densities from 11 asymptomatic children were included in the model of the parasite dynamics. The population pharmacokinetics and pharmacodynamics of artemether, dihydroartemisinin, and lumefantrine were modeled in NONMEM. The distribution of artemether was described by a two-compartment model with a rapid absorption and elimination through metabolism to dihydroartemisinin. Dihydroartemisinin concentrations were adequately illustrated by a one-compartment model. The pharmacokinetics of artemether was time dependent, with typical oral clearance increasing from 2.6 liters/h/kg on day 1 to 10 liters/h/kg on day 3. The pharmacokinetics of lumefantrine was sufficiently described by a one-compartment model with an absorption lag time. The typical value of oral clearance was estimated to 77 ml/h/kg. The proposed semimechanistic model of parasite dynamics, while a rough approximation of the complex interplay between malaria parasite and the human host, adequately described the early effect of ARM and DHA concentrations on the parasite density in malaria patients. However, the poor precision in some parameters illustrates the need for further data to support and refine this model.


2011 ◽  
Vol 55 (12) ◽  
pp. 5500-5506 ◽  
Author(s):  
Marcus J. Rijken ◽  
Rose McGready ◽  
Aung Phae Phyo ◽  
Niklas Lindegardh ◽  
Joel Tarning ◽  
...  

ABSTRACTDihydroartemisinin-piperaquine is a fixed-dose artemisinin-based combination treatment. Some antimalarials have altered pharmacokinetics in pregnancy. Pregnant women in the 2nd or 3rd trimester and matched nonpregnant women with uncomplicated falciparum malaria were treated with a total of 6.4 mg/kg of body weight dihydroartemisinin and 51.2 mg/kg piperaquine once daily for 3 days. Venous blood samples were drawn at prespecified time points over 9 weeks. Plasma dihydroartemisinin and piperaquine concentrations were analyzed by liquid chromatography-mass spectrometry. Piperaquine and dihydroartemisinin pharmacokinetics were well described. There were no significant differences in total piperaquine exposure (P= 0.80) or drug exposure during the terminal elimination phase (72 h to infinity) (P= 0.64) between the two groups. The apparent volume of distribution of piperaquine was significantly smaller (602 liters/kg versus 877 liters/kg) in pregnant women than in nonpregnant women (P= 0.0057), and the terminal elimination half-life was significantly shorter (17.8 days versus 25.6 days;P= 0.0023). Dihydroartemisinin exposure after the first dose was significantly lower (844 h × ng/ml versus 1,220 h × ng/ml,P= 0.0021) in pregnant women, but there were no significant differences in total dihydroartemisinin exposure or maximum concentrations between the two groups. There were no significant differences in any pharmacokinetic parameters between the second and third trimester. These results obtained through noncompartmental analysis suggest that in the treatment of falciparum malaria, there are no clinically important differences in the pharmacokinetics of dihydroartemisinin or piperaquine between pregnant and nonpregnant women. However, a more detailed analysis using population pharmacokinetic modeling is needed to fully investigate the differences found for some of the pharmacokinetic parameters, such as the terminal half-life.


2009 ◽  
Vol 65 (8) ◽  
pp. 847-847
Author(s):  
Rose McGready ◽  
Kasia Stepniewska ◽  
Niklas Lindegardh ◽  
Elizabeth A. Ashley ◽  
Yar La ◽  
...  

2006 ◽  
Vol 62 (5) ◽  
pp. 367-371 ◽  
Author(s):  
R. McGready ◽  
K. Stepniewska ◽  
S. A. Ward ◽  
T. Cho ◽  
G. Gilveray ◽  
...  

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
L Pieters ◽  
K Mesia ◽  
L Tona ◽  
M Mampunza ◽  
N Ntamabyaliro ◽  
...  

2020 ◽  
Vol 98 (3) ◽  
pp. 178-184
Author(s):  
T. V. Chernyakova ◽  
A. Yu. Brezhnev ◽  
I. R. Gazizova ◽  
A. V. Kuroyedov ◽  
A. V. Seleznev

In the review we have integrated all up-to-date knowledge concerning clinical course and treatment of glaucoma among pregnant women to help specialists choose a proper policy of treatment for such a complicated group of patients. Glaucoma is a chronic progressive disease. It rarely occurs among childbearing aged women. Nevertheless the probability to manage pregnant patients having glaucoma has been recently increasing. The situation is complicated by the fact that there are no recommendations on how to treat glaucoma among pregnant women. As we know, eye pressure is progressively going down from the first to the third trimester, so we often have to correct hypotensive therapy. Besides, it is necessary to take into account the effect of applied medicines on mother health and evaluate possible teratogenic complications for a fetus. The only medicine against glaucoma which belongs to category B according to FDA classification is brimonidine. Medicines of the other groups should be prescribed with care. Laser treatment or surgery may also be a relevant decision when monitoring patients who are planning pregnancy or just bearing a child. Such treatment should be also accompanied by medicines.


Author(s):  
Tirta Anggraini Tirta Anggraini

ABSTRACT According to the World Health Organization (WHO), maternal nutritional status at the time of growth and during pregnancy can affect fetal growth and development. Based on (IDHS) survey of 2007 AKI Indonesia at 228 per 100,000 live births, although this figure is still the highest in Asia. Social health center in Palembang in 2011 the number of pregnant women with good nutritional status of 67 men (97.1%). factors that influence the nutritional status of pregnant women is the temperature of the environment, economic status, habits and views of women to food, age, education, and health status. The purpose of this study is a known relationship education and economic status with nutritional status of pregnant women in the third trimester of Social Health Center Palembang in 2012. This study uses analytic survey with cross sectional approach. The population in this study were all third trimester pregnant women who visit the health center Social Palembang in May 2012, with a sample of 30 respondents. Sampling in this study with non-random methods with techniques Accidental Sampling. Data analysis carried out univariate and bivariate statistics with Chi-Square test with significance level α = 0.05. The results showed than 30 respondents there (73.3%) of respondents that good nutritional status, higher education (76.7%), and high economic status (70.0%). The results of this study showed no significant association education and economic status with nutritional status of pregnant women in the third trimester of Social Health Center Palembang in 2012. From the results of this study, researchers hope to improve the health care workers, especially health services in Antenatal Care services pay more attention to maternal risk of poor nutritional status.   ABSTRAK Menurut World Health Organization (WHO), status gizi ibu hamil pada waktu pertumbuhan dan selama hamil dapat mempengaruhi pertumbuhan dan perkembangan janin. Berdasarkan (SDKI) survei terakhir tahun 2007 AKI Indonesia sebesar 228 per 100.000 Kelahiran Hidup, meskipun demikian angka tersebut masih tertinggi di Asia.  Di Puskesmas Sosial Palembang tahun 2011 jumlah ibu hamil yang berstatus gizi baik sebesar 67 orang (97,1%). faktor-faktor yang mempengaruhi status gizi ibu hamil adalah suhu lingkungan, status ekonomi, kebiasaan dan pandangan wanita terhadap makanan, usia, pendidikan, dan status kesehatan. Tujuan penelitian ini adalah diketahuinya hubungan pendidikan dan status ekonomi dengan status gizi ibu hamil trimester III di Puskesmas Sosial Palembang tahun 2012. Penelitian ini menggunakan metode survey analitik dengan pendekatan cross sectional. Populasi pada penelitian ini adalah semua ibu hamil trimester III yang berkunjung di Puskesmas Sosial Palembang pada bulan Mei tahun 2012, dengan jumlah sampel 30 responden. Pengambilan sampel pada penelitian ini dengan metode non random dengan teknik Accidental Sampling. Analisa data dilakukan secara univariat dan bivariat dengan uji statistik Chi-Square dengan tingkat kemaknaan α = 0,05. Hasil penelitian menunjukkan dari 30 responden terdapat (73,3%) responden yang berstatus gizi baik, pendidikan tinggi (76,7%), dan status ekonomi tinggi (70,0%). Hasil penelitian ini menunjukkan ada hubungan yang bermakna pendidikan dan status ekonomi dengan status gizi ibu hamil trimester III di Puskesmas Sosial Palembang tahun 2012. Dari hasil penelitian ini, peneliti berharap petugas pelayanan kesehatan dapat meningkatkan pelayanan kesehatan terutama dalam pelayanan Antenatal Care lebih memperhatikan kehamilan ibu yang berisiko status gizi buruk.


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