1.Blood glucose level and other biochemical changes induced in normal mice by oral Traditional Chinese Medicine complex for diabetes (TCM-D™)
Donald Koh Fook Chen ; Joon Wah Mak ; Soo Shen Ooi ; Kok Fee Mak ; Kwai Hoe Chong
International e-Journal of Science, Medicine and Education 2012;6(2):24-31
Background: A number of Traditional Chinese
Medicine (TCM) preparations are being used for the
treatment of diabetes mellitus. Some components
of these preparations have biochemical effects other
than those of lowering blood glucose and indeed have
been used for other medical indications in traditional
practice. The primary objective of the study was to
determine the effect of the oral mixture of Traditional
Chinese Medicine for diabetes (TCM-D™ complex) on
blood glucose level and the biochemical changes if any,
on the liver (ALT, AST, gamma-GT, albumin, globulin)
and renal (blood creatinine, urea) functions in normal
mice. The oral mixture is an aqueous extract of four wellknown traditional Chinese medicinal herbs and consists
of Trichosanthes kirilowii Maxim., Paeonia lactiflora Pall.,Glycyrrhiza uranlensis Fisch., and Panax ginseng (red) CA Meyer in the proportion of 36%, 28%, 18%, and
18% respectively of the dry weight. These herbs have
been shown to have blood glucose lowering activity and
have been used for other traditional medicinal purposes.
The safety of the combination was evaluated in the
present study.
Methods: Experimental Balb/c mice were treated orally
via gastric tube with the extract at daily doses equivalent
to 1 and 10 times the recommended human dose for
8 weeks. Blood glucose and other biochemical profiles
were monitored at pre-treatment and monthly posttreatment
until killed.
Results: When compared to pre-treatment levels, the
blood glucose levels were significantly lower in treated
animals compared to those in the control group. At
the recommended TCM-D™ dose the levels in treated
animals were significantly lower than that of control
animals and at pre-treatment. When compared with
pre-treatment, the glucose levels were lowest at Week
8 of treatment, the mean levels being 111.23%, 83.32%
and 70.33% in control, and in animals given 1 x and
10 x the recommended TCM-D™ dosage respectively.
The blood glucose lowering effect was also associated
with a significant weight loss in treated animals. There
were transient increases in AST and ALT levels but these reverted to normal at Week 8 of treatment.
The levels of bilirubin, g-GT, albumin, creatinine
and blood urea were also not significantly different at
Week 8 from pre-treatment levels in all groups.
Conclusion: Even at 10 times the dosage recommended
for humans, TCM-D™ did not affect the liver and
renal functions of treated animals. Treated and control
animals remained healthy and normal throughout the
period of observation.
2.Effect of Traditional Chinese Medicine Complex for diabetes (TCM-D™) on experimentally induced diabetic mice
Donald Koh Fook Chen ; Joon Wah Mak ; Soo Shen Ooi ; Kok Fee Mak ; ; Kwai Hoe Chong
International e-Journal of Science, Medicine and Education 2013;7(1):4-9
Background: We previously evaluated the biochemical
changes induced by the local product TCM for
diabetes (TCM-D™) on blood glucose levels and other
biochemical changes in normal mice fed orally with the
recommended human dose (30 ml/kg daily) and ten
times this dose for eight weeks. TCM-D™ is an aqueous
extract of the roots of Trichosanthes kirilowii Maxim,
Paeonia lactiflora Pall, Glycyrrhiza uranlensis Fisch. and
Panax ginseng Meyer (red) combined at the dry weight
proportions of 36%, 28%, 18% and 18% respectively.
The study showed that at these dosages the blood
glucose levels as well as the body weights in treated mice
were significantly reduced when compared with pretreatment
values and control animals. The present study
evaluated the effect of the extract in a mouse model of
Type 1 diabetes mellitus.
Methods: TCM-D™ extract was prepared as a 10x
concentrate and given orally at 0.3 ml/100 g and
1.5 ml/100 g to mice which were experimentally
induced diabetic with intraperitoneal injections of
streptozotocin (5 mg/100g) in sodium citrate (pH 4.5).
Control diabetic mice were dosed with extract diluent
(distilled water).
Results: At the doses studied the compound did not
show any significant lowering of the glucose levels in a
mouse model of Type 1 diabetes. There were significant
increases in the alanine aminotransferase (ALT) and
creatinine levels which were most likely due to the
treatment with the compound. There were no significant
changes in the aspartate aminotransferase (AST) and
blood urea levels due to the treatment. Neither was
there any significant effect on the weight of the treated
animals due to the treatment.
Conclusions: It is concluded that TCM-D™ did not
have any significant blood glucose lowering effect on
streptozotocin induced diabetic mice when fed orally at
1-5 times the recommended human dose. Further work
is needed to determine if the extract has any significant
effect in a mouse model with Type 2 diabetes mellitus.
3.Making Intubation and Extubation Safe in the Covid Era
Malaysian Journal of Medicine and Health Sciences 2022;18(No.1):324-329
The highly infectious COVID-19 pandemic has in a way or the other affected everyone. Health care workers particularly anaesthesists who deal with airway manipulation are at an increased risk of being infected. Invasive procedures
such as intubation and extubation performed mostly by anaesthetists are classified as procedures with high risk of
aerosol generating particles where respiratory droplets containing the virus can easily spread to the surroundings.
Various methods of preoxygenation, intubation and extubation have been further discussed and improvised with the
aim of reducing the spread of aerosolization and making intubation safe. The purpose of this review is to identify
the new techniques that are safe and effective in reducing aerosolization of respiratory droplets during the process
of intubation and extubation. Anaesthetists are often not familiar with these new techniques and protocols. Thus far,
no scientific data has been made available to support the superiority of each technique. Further research is needed
to investigate each technique in the future.
4.Prevalence, risk factors and parental perceptions of gastroesophageal reflux disease in Asian infants in Singapore.
Vanessa Z Y MCLOUGHLIN ; Noor H A SUAINI ; Kewin SIAH ; Evelyn X L LOO ; Wei Wei PANG ; Yap Seng CHONG ; Keith M GODFREY ; Kok Hian TAN ; Jerry K Y CHAN ; Anne E N GOH ; Bee Wah LEE ; Lynette P SHEK ; Johan G ERIKSSON ; Marion M AW ; Elizabeth H THAM
Annals of the Academy of Medicine, Singapore 2022;51(5):263-271
INTRODUCTION:
Infant gastroesophageal reflux disease (GERD) is a significant cause of concern to parents. This study seeks to describe GERD prevalence in infants, evaluate possible risk factors and assess common beliefs influencing management of GERD among Asian parents.
METHODS:
Mother-infant dyads in the Singapore PREconception Study of long-Term maternal and child Outcomes (S-PRESTO) cohort were prospectively followed from preconception to 12 months post-delivery. GERD diagnosis was ascertained through the revised Infant Gastroesophageal Reflux Questionnaire (I-GERQ-R) administered at 4 time points during infancy. Data on parental perceptions and lifestyle modifications were also collected.
RESULTS:
The prevalence of infant GERD peaked at 26.5% at age 6 weeks, decreasing to 1.1% by 12 months. Infants exclusively breastfed at 3 weeks of life had reduced odds of GERD by 1 year (adjusted odds ratio 0.43, 95% confidence interval 0.19-0.97, P=0.04). Elimination of "cold or heaty food" and "gas producing" vegetables, massaging the infant's abdomen and application of medicated oil to the infant's abdomen were quoted as major lifestyle modifications in response to GERD symptoms.
CONCLUSION
Prevalence of GERD in infants is highest in the first 3 months of life, and the majority outgrow it by 1 year of age. Infants exclusively breastfed at 3 weeks had reduced odds of GERD. Cultural-based changes such as elimination of "heaty or cold" food influence parental perceptions in GERD, which are unique to the Asian population. Understanding the cultural basis for parental perceptions and health-seeking behaviours is crucial in tailoring patient education appropriately for optimal management of infant GERD.
Female
;
Gastroesophageal Reflux/epidemiology*
;
Humans
;
Infant
;
Infant, Newborn
;
Male
;
Parents/psychology*
;
Prevalence
;
Risk Factors
;
Singapore/epidemiology*