Dr. Sheikh Arshad
Saeed - Teacher, Innovator and Researcher
D
r. Sheikh Arshad Saeed, the Abdulaziz Hussainali Shariff Professor of Pharmacology, Department of Biological
and Biomedical Sciences, has not only been a faculty member at AKU
for almost two decades, but also a researcher and innovator in his
field. Dr. Saeed has been involved in breakthrough discoveries for nearly
three decades, contributing to a better understanding of inflammation
and anti-inflammatory drugs, reproductive biology and molecular
mechanisms of human platelet aggregation. He has published 220 research
papers and has the unusual distinction of being awarded nine patents
from Europe and North America. In 1980, he was the first
Pakistani to be elected Fellow of the Royal Institute of Biology.
In 2001 he was awarded one of the nation's highest civil honours,
the Hilal-i-Imtiaz for biological sciences a first
in Pakistan.
Why did you decide to pursue
a career in medicine and specialise in anti-inflammatory drugs?
Although there are no doctors
in my family, I always had a keen interest in the science of drugs.
My scientific career started in biochemistry and pharmacology, and
I found myself working in research and development for a German
pharmaceutical company by the late 1960s. There I designed a large
scale preparative electrophoresis apparatus for carrying out the
separation of human blood proteins and enzymes. This motivated me
to get involved in my main area of interest, anti-inflammatory drugs.
It was also the first of the nine patents I hold for medical procedures,
techniques and instruments granted in the US and Europe.
What is the relevance and
impact of your breakthrough discoveries in the area of biological
sciences for both Pakistan and abroad?
My main contribution to
the biological sciences was the discovery that human blood contains
a natural mechanism for controlling inflammation. The process started
when I discovered that certain components in human blood, called
Endogenous Inhibitors of Prostaglandin Synthesis (EIPS), could slow
down the formation of "prostaglandin". This is one of
a group of hormone-like substances present in a wide variety of
tissues and body fluids, such as the uterus, brain and kidney. Increased
levels of prostaglandin cause inflammation as well as other undesirable
responses, such as diarrhoea, vomiting, coughing and pain. EIPS
is assumed to be the natural regulator and inhibitor of prostaglandin
activity.
This work furthered my research
in the area of control of human pregnancy and childbirth. While
working at the University of Texas Health Science Centre in Dallas, I found that prostaglandins
which in fact initiate labour were inhibited throughout pregnancy.
However, EIPS had high activity rates throughout pregnancy but disappeared
completely at the start of labour. During labour, the reduction
of EIPS in amniotic fluid results in an increase
of prostaglandins and is associated with the start of uterine contractions.
This provided a major breakthrough in understanding the mechanisms
of human labour and had important implications in the better understanding
and treatment of preterm labour, pregnancy induced hypertension
and spontaneous abortion.
This single discovery of
an endogenous control mechanism for inflammation was a major advancement
in the biological sciences and has led to the development of new
anti-inflammatory drugs and the control of prostaglandins, the most
important mediators of inflammation. After joining AKU, I started
work on human platelet aggregation and discovered the presence of
another endogenous inhibitor of platelet aggregation in human blood,
different from EIPS. This substance was found to control thrombosis
leading to heart attacks.
My research work has therefore
had a significant impact in the understanding and pathophysiology
in prostaglandin and leukotriene mediated
disorders like asthma, rheumatoid arthritis and peptic ulcers.
What is the state of research
and innovation in the health sciences in the developing world today?
Scientific productivity
in the developing world has been on the low side, but this is not
necessarily due to a dearth of scientists. I would, however, say
that a lack of an enabling environment for research and innovation
is the key factor rather than the lack of trained talent. Pakistani
scientists working abroad are doing good research with their host
colleagues. Clearly, we have the potential to excel provided we
are furnished with an enabling environment based on merit.
I also think that even if
we do use knowledge and techniques from other parts of the world,
they still need to be adapted to fit our local context. Unless there
are those equipped to understand and apply new knowledge, its transfer
is no good. For that reason, AKU is also committed to excellence
in instruction to produce quality graduates
able to contribute towards improving the health services in Pakistan and who understand technological
advances in science.
How far has AKU fostered
an enabling environment for research generally and for you in particular?
One of the missions of the
University has been the promotion of research to the highest standards.
We are laying strong foundations for research at AKU and are already
part of the international research network, as the numerous awards
to our faculty attest. If recruitment and development could be matched
with the progress in research, we could further strengthen this
position amongst both national and international peers. I was fortunate
to be able to join AKU in 1984, the only university at the time
which provided a solid infrastructure for research in Pakistan. As I look back, the past
19 years have been very productive for me and I hope to continue
this rewarding association with AKU.
What makes you an effective
educator at both undergraduate and postgraduate levels?
Ideally, a teacher should
be focused as well as versatile in order to understand the concept
of integration in basic sciences and the objectives of a lecture.
Of course one has to be patient and interesting so that students
remain attentive. A teacher has to be committed and encouraging,
and strive to be both a mentor and a role model. I have personally
had a supervisory role in the award of six PhDs and three MPhils
from both national and international universities.
What are your future challenges?
Future challenges include
making AKU a centre of reference and excellence at par with national
and international institutions. Merit and equality should continue
to be the objectives in our instruction, research and service towards
building healthy societies.
Learning and taking up exciting
new challenges in life is an ongoing process for me. Soon, I hope
to apply for a patent for a new anti-inflammatory drug from AKU.
It is a difficult but not an impossible process. I am also involved
in publishing new material on drugs, particularly in the inflammatory
and cardiovascular areas. I have learnt to seize the opportunities
that have come my way and remain motivated to make my modest contributions.
