Safety Assessment of a Nematode-Resistant Tomato by a Simple, Short-term Rat Feeding Study

1996 ◽  
Vol 24 (1) ◽  
pp. 6-8
Author(s):  
Gilbert S. Stoewsand ◽  
Judy L. Anderson ◽  
Richard W. Robinson
2017 ◽  
Vol 65 (27) ◽  
pp. 5545-5560 ◽  
Author(s):  
Bonnie Hong ◽  
Yingzhou Du ◽  
Pushkor Mukerji ◽  
Jason M. Roper ◽  
Laura M. Appenzeller

2005 ◽  
Vol 22 (10) ◽  
pp. 1032-1041 ◽  
Author(s):  
I. Severin ◽  
L. Dahbi ◽  
J. -C. Lhuguenot ◽  
M. A. Andersson ◽  
D. Hoornstra ◽  
...  

1993 ◽  
Vol 12 (3) ◽  
pp. 237-242

Aldioxa is a heterocyclic organic compound used in cosmetic products as an astringent and skin conditioning agent. The oral LD50 for mice exceeds 23 mg/kg, and 8 g/kg for rats. All of the toxicologic parameters investigated in a 94-day subchronic feeding study in rats were similar in the test and the control group. No significant macroscopic adverse results were obtained in a three generation study in which rats were fed diets containing 10% Aldioxa. A suspension containing 25% Aldioxa was not a sensitizer when applied to the shaved backs of 3 male guinea pigs, nor when 10 animals were given intradermal injections of a 2% Aldioxa suspension on alternating days for a total of 10 applications and challenged after a 10-day nontreatment period. A hydrophilic unguent containing 4% Aldioxa was neither an irritant nor a sensitizer when evaluated on 200 human volunteers. The safety of Aldioxa has not been completely documented and substantiated. It cannot be concluded that this ingredient is safe for use in cosmetic products until the appropriate needed safety data cited in the report have been obtained and evaluated.


1991 ◽  
Vol 10 (1) ◽  
pp. 9-19 ◽  

Cyclomethicone is a mixture of cyclic dimethylpolysiloxane compounds used primarily as an emollient and solvent in cosmetic formulations at concentrations from <0.1%to>50%. Cyclomethicone is not significantly absorbed through the skin. Small amounts of Cyclomethicone were absorbed by both humans and monkeys in oral feeding studies. The absorbed Cyclomethicone was detected in both the urine and expired air. Acute oral dose of Cyclomethicone to rats produced no deaths nor any gross lesions. Short-term dermal studies produced no behavioral, local skin, gross, nor histopathological changes. In subchronic inhalation studies in monkeys, no significant differences were found between exposed and unexposed animals. Undiluted Cyclomethicone applied to the intact and abraded skin of rabbits produced little or no irritation in two studies. Ocular studies indicated that Cyclomethicone produced only slight transient conjunctival irritation in washed and unwashed eyes. Cyclomethicone did not produce reproductive effects in rats. Cyclomethicone was not a mutagen when assayed in the Ames test. Cyclomethicone was neither irritating nor sensitizing to human skin in two clinical studies. On the basis of the available data, it is concluded that Cyclomethicone is safe as a cosmetic ingredient in present practices of use.


2016 ◽  
Vol 9 (4) ◽  
pp. 592-598 ◽  
Author(s):  
Crystal C. Tyson ◽  
Pao-Hwa Lin ◽  
Leonor Corsino ◽  
Bryan C. Batch ◽  
Jenifer Allen ◽  
...  

2014 ◽  
Vol 95 (9) ◽  
pp. 1911-1917 ◽  
Author(s):  
Oumèma Nouri-Ellouz ◽  
Najiba Zeghal ◽  
Saloua Makni ◽  
Fatma Makni-Ayadi ◽  
Mouhanad Trigui ◽  
...  

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1069-1069
Author(s):  
Diane O'Brien ◽  
Natasha Tasevska ◽  
Virag Sagi-Kiss ◽  
Susana A Palma-Duran ◽  
Brian Barrett ◽  
...  

Abstract Objectives Objective biomarkers would help to clarify relationships between added sugar (AS) intake and chronic disease. A recent study identified the breath carbon isotope ratio (CIR) as a potential short-term AS biomarker. To further evaluate the biomarker potential of the breath CIR, we evaluate the effects of both short and longer-term intakes of AS in the context of normal dietary intake patterns, and also evaluate animal protein (AP), another dietary factor known to influence CIR. Methods We conducted a 15-d controlled feeding study of 100 adults (age 18–70, 55% women) in Phoenix, AZ. Participants were provided individualized diets that approximated habitual food intakes and recorded the time that all foods were consumed throughout each day. Three breath samples were collected on each of 3 nonconsecutive, randomly selected study days: one fasting sample, one “morning” sample (collected 10:00–14:00) and one “evening” sample (collected 14:00–20:00). We used a linear mixed model to evaluate the effects of AS and AP intake in each of 8 hours preceding collection of the breath sample (t1 = 0–1 hour prior, t2 = 1–2 hours prior, etc.). Besides daily intake, models also included 15-d mean AS and AP intake, as well as sex, age and BMI. Coefficients are presented as (β (SE), P). Results Mean (±SD) intakes of AS and AP in our study were 67 ± 34 and 73 ± 30 g/d, respectively. The breath CIR was increased by AS consumed 1–4 hours prior to sample collection (βt2 = 0.014 (0.005), P = 0.0025; βt3 = 0.0094 (0.004), P = 0.02; βt4 = 0.012 (0.005), P = 0.02) and AP consumed 3–6 hours prior to sample collection (βt4 = 0.012 (0.005), P = 0.03; βt5 = 0.0092 (0.004), P = 0.03; βt6 = 0.010 (0.006), P = 0.09). In addition, the breath CIR increased with higher 15-d intakes of both AS and AP (βAS = 0.012 (0.003), P &lt; 0.0001 and βAP = 0.014 (0.004), P = 0.0003, respectively). Conclusions Both short-term and longer-term intakes of AS and AP increased the breath CIR. Short-term AS intake had a more rapid effect on the breath CIR than short-term AP intake, although effects were of similar size. Furthermore, the size of short-term effects were similar to the size of long-term effects. Thus, breath CIR is influenced by both short and long-term intakes of AS and AP and could have potential for evaluating dietary patterns. Funding Sources This work was funded by NIH U01 CA197902.


2017 ◽  
Vol 100 ◽  
pp. 34-41 ◽  
Author(s):  
Xin Chen ◽  
Ming-Qing Gao ◽  
Dong Liang ◽  
Songna Yin ◽  
Kezhen Yao ◽  
...  

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