Readings_In_Pharmacy
This blog is a companion to the print magazine "Readings In Pharmacy"; purpose is to stimulate critical appraisal of existing medical and pharmaceutical literature; aim to inform development of innovative interventions on field of practice; envisioned to contribute substantially to continuous professional development of pharmacists.
Sunday, 10 August 2025
Tuesday, 3 June 2025
An appeal for scientific criticism in pharmacy practice
A much revered wise-saying in Akan goes like this; “Dua kontonkyitonkyi na ɛma yɛhunu dwumfoɔ”. An English rendition of which will be, “a crooked piece of wood reveals the skillful carver”. This adage gives us a test for artful craftsmanship, pointing to the fact that it takes so much learned or innate skill to make meaning out of a seemingly useless situation. In the context of professional practices it illumines us to understand that skill is what sets apart the professional from a lay person.
In our modern world, many thanks to information
communication technology(IT), both pharmacists and the lay public now have an
almost free access to a large breadth of information on drugs, specifically,
and healthcare in general. But much as breadth in perspective is seen
effortlessly, so much skill and labour are required to discover depth. The
capacity to process and make meaning of the same information presented to both
the pharmacist and the lay person is what sets the one apart from the other.
And this skill is most relevant in situations when there are obvious
contradictions or unfilled gaps with the pieces of information presented. It is
requisite for a pharmacist, a sine qua non, in order for him or her to excel in
the chosen profession, to possess the skill to expertly sift the available
pieces of information on drugs and take an informed position. There will be no
difference if a pharmacist also absorbs any information presented hook, line
and sinker just as the lay person. In the events when there are unfilled gaps
with the available information, a recourse to an educated guess will be
necessary. A pharmacist who proceeds along this line of thought is guided by
the merits of scientific criticism
in his or her practice.
A recent report tells of a pharmacist who declined to
dispense diazepam to a client, having been requested of the latter for that
drug by name to relieve an episode of insomnia, and recommended the intake of
chamomile tea instead. Was scientific criticism involved in the decision-making
process here? That depends on what this pharmacist would give for a reason. It is
a scientific argument if the pharmacist’s reason is that diazepam is a
controlled substance, a prescription-only drug (POM), and therefore the client
required a valid prescription to access it (The Legal Argument). It is a
scientific argument if the pharmacist is just being mindful that the habit of
taking a drug to induce sleep could lead that client to a state of drug
dependency or addiction (The Addiction Argument). It is again a scientific
argument if the pharmacist’s recommendation was a matter of preference for
natural therapies and a personal disposition to promote any therapy of natural
origin above synthetic drugs (The Orientation Argument).
In this case, however, an argument made within pharmacology
(The Pharmacology Argument) will not stand the test of scientific criticism. Why,
because whereas a large body of knowledge has been documented in literature in
favour of diazepam, currently there is an information gap as far as the herb chamomile is concerned. The pharmacist
most likely knows, or at least can easily access, so much information on the
pharmacology of diazepam, including its chemical identity, mechanism of action,
duration of activity, known and predictable drug interactions, risk of
tolerance and its addiction potential, safe dosing regimens, and much more. This
wealth of information on diazepam has, rather unexpectedly, bred a common
phobia against it within the healthcare community. On the other hand, the literature
is currently not as much rich with these pieces of information towards
chamomile. It is fine if this dearth of information on the pharmacology and
toxicology of chamomile is appreciated and not misinterpreted to mean a better
safety profile of this herb compared to diazepam. To wit, our pharmacist will
not be right in this instance if his or her recommendation to that client was
on the basis of an idea that chamomile tea is a safer option.
To elaborate on the pharmacology argument, how else could
chamomile effect sedative properties if it does not contain active principles
(secondary metabolites) which also interfere with the activities of one or more
neurotransmitters in the CNS? Assuming even that the active principle(s) in
chamomile does not exert action on the GABA-ergic neuronal pathways diazepam is
known to be involved with, it is very reasonable to say that that active
compound and diazepam are both molecular entities and for that matter the
classical laws of drug-receptor interaction hold all the same. The only
difference here being that whereas the active principle(s) in chamomile is
naturally derived, and perhaps not yet isolated, diazepam is a purely synthetic
drug. It is only when we were to have a detailed pharmacological profile of
chamomile can we scientifically compare this natural therapy with diazepam
along the lines of pharmacology.
It makes so much difference how we defend our positions and
choices in the practice of pharmacy. If doing a scientific criticism means
taking a position opposed to the orthodox viewpoint on the matter do it for being
the noblest course of action. This holds true so long as some pieces of
evidence, either documented or experiential, can be adduced in defence of the
position espoused.
Monday, 12 May 2025
A coalition of pharmacists against professional drug peddling?
In the community where my retail pharmacy is located a colleague pharmacist is sponsoring the OTCMS shops around to fiercely compete with me. What is his modus operandi? He moves about with his van from his own business territory, and entering my territory hops from one OTCMS shop to another, to supply them with not only Class C medicines but also the Class A and B groups according to the requirements of those shops.
He calls this activity a smart business move enabling him to
extend the boundaries of his business territory, I call it professional drug peddling
and everything but ingenious. For the benefit of this discussion let's explain "professional drug peddling"
as the practice of a licensed wholesale or retail pharmacy carrying bulk stocks of medicines from the registered
premises on an itinerant journey and selling these stocks in portions to other
pharmaceutical facilities en route, usually covering long distances and many
days in trekking.
Direct end-to-end delivery of stocks from a wholesale
premises to a retail or dispensing facility is excluded from the scope of this
definition.
Our usage of the qualification of "professional" is not intended to imply quality of performance
but, rather, the fact that such activities are done by the direct instructions
or under the supervision of pharmacists.
Professional drug peddling, which is both an illegality in
Ghana and an affront to sound ethical principles of pharmacy practice, is
gradually establishing itself as a normal practice in this country and I am not
the only victim of its consequences. A full analysis of the ripple effects of
professional drug peddling in this country will require a broad-based enquiry
beyond the strengths of this rather short discussion, but we do not have to
develop an academic thesis for anyone to comprehend that professional drug
peddling is the direct cause how OTCMS shops can access Class A and B
medicines. When a wholesale pharmacy sends out a trekking mission to the field
with a part of its stocks, it must of necessity make sales on the field and not
waste fuel. Faced with a dilemma between survival and ethics, the choice
naturally would go in the way of the former option. Ethics will always be
slaughtered on the alters of survival instincts.
By law a pharmacy is a fixed premises, never a movable
structure. The laws in Ghana give practical significance to this assertion by
providing for the registration of pharmacies or other premises for the
dispensing of medicines separately from the licensure of the practitioners who
work in these premises. Itinerant vans of licensed wholesale pharmacies in
effect move the premises of those wholesale/retail pharmacies in part from the
recognized location to other territories. This practice contravenes existing
regulations of pharmaceutical practice, perhaps only giving an exception for
direct end-to-end delivery of stocks from a wholesale premises to a
retail/dispensing facility in response to a concluded transaction for being of
a different business model. So to reiterate, professional drug peddling is
unlawful in Ghana, at least as of the present time, and hence any pharmacy or a
pharmacist who perpetrates it commits an illegality.
From the point of view of ethics pardon me to ask if we as
pharmacists are ever mindful of the effects our deeds and misdeeds, actions and
inactions, have on our profession and colleague pharmacists at large. In the
present scenario, professional drug peddling adversely affects the standards of
pharmacy practice and nurtures an unfavourable environment which makes it
extremely difficult for other pharmacies to thrive, with pharmacies in the
small districts and rural areas hit the hardest.
When once in a discussion with a senior officer of the
Pharmacy Council around this subject matter I asked why the regulator has not
been successful in curtailing this phenomenon, his answer pierced me to the
core. He in turn asked me of what cadre of professionals the supervising
practitioners of wholesale pharmacies are which do send out vans on trekking.
At the end of the discussion I couldn't help but agree with him that our
predicament is one of in-fighting. Just a handful, in relative terms, of
pharmacists are by this means fighting against the larger body of pharmacists
and also making the work of the regulator more difficult. He was quite
point-blank, that many of the challenges Pharmacy Council is grappling with
were caused by one pharmacist or the other, only for the bigger fold to turn
back with criticisms that the Council is not doing much for our profession.
So, how about resorting to the approach of self-regulation
in an attempt to exterminate the fledgling phenomenon of professional drug
peddling in this country? A prompt
action is necessary before this phenomenon gets fixed in the minds of current
and future generations of Ghanaian pharmacists as both acceptable and lawful.
In the considered opinion of this writer, no other
instrumentality could be superior to self-discipline at controlling
misdemeanour.
In our context "self" refers to the PSGH and the
entire body of pharmacists. This is a call to reactivate the erstwhile
committee of the PSGH charged with self-regulation of members of the
professional body, as well as the pharmaceutical environment, to deliver on its
mandate.
As a second step the writer recommends the formation of a
coalition of pharmacists to volunteer information and field evidence to support
the work of the aforesaid committee. These volunteers scattered across the
length and breadth of this country, keeping watchful eyes for professional drug
peddlers from their community pharmacies as sentry posts, could report with the
timely information and evidence to facilitate the work of that committee and
the Pharmacy Council.
Possibly, such an advocacy group of pharmacists will be a
game-changer for pharmacy practice in our dear country.
Monday, 13 November 2023
On the maximum doses for IV/IM Artesunate and IM Artemether
PROBLEM STATEMENT:
•Both national and international treatment
guidelines for malaria currently recommend a dosage of 2.4mg/Kg BW artesunate
per dose by both IV and IM routes in adults and older children, and 3mg/Kg BW
per dose in children with body weights below 20Kg. Three doses are initially
administered over 24hrs at fixed times of 0hr, 12hr and 24hr, with repeat doses
given at 24hr intervals if necessary.
•Recommended dosage for IM artemether is
3.2mg/Kg BW as a bolus dose, with repeat doses of 1.6mg/Kg BW at intervals of
24hrs apart if necessary.
•The guidelines are however silent on the
maximum allowable doses for both of these drugs given by the parenteral routes,
resulting in a lack of consensus among healthcare practitioners on this
particular matter.
•This represents a classic example of
situations in medical practice when the carefully considered opinions of
individual practitioners are brought to bear in decision-making.
INDIRECT EVIDENCE:
•The current WHO Guidelines for malaria
(published on 14 March 2023) makes the following explicit recommendations on
the dosages of ACT antimalarial therapy by the oral route. Interest here is on
the artemisinin-derivative components of the medications.
•Oral artemether/lumefantrine
Up to a maximum of 80mg artemether BID (160mg
daily).
•Oral artesunate/amodiaquine
Up to a maximum of 200mg artesunate daily as a
single dose.
•Oral artesunate/mefloquine
Up to a maximum of 200mg artesunate daily as a
single dose.
•Oral artesunate/sulfadoxine-pyrimethamine
Up to a maximum of 200mg artesunate daily as a
single dose.
•Oral dihydroartemisinin/piperaquine
Up to a maximum of 200mg dihydroartemisinin
daily as a single dose.
PHARMACOKINETIC PRINCIPLES:
•Every drug exerts its actions within a
therapeutic window, bounded by both a minimum effective concentration [minimum
dose, Cmin.] and a maximum effective concentration [maximum dose, Cmax.].
•Increasing the dose of a drug above its Cmax
threshold increases the incidence and severity of toxic effects associated with
the drug, usually without producing any incremental benefits in the positive
therapeutic effects of the same drug.
•Moreover, the associated increments in the
cost of higher doses are not offset by any further benefits in treatment
outcomes, raising concerns about economics of healthcare and wastage of
resources.
•By reason of barriers to drug absorption from
the GI tract such as solubility and first-pass metabolism, bioavailability of
drugs after oral administration are almost always lower than levels achieved
after administration by any of the parenteral routes.
•Deductive arguments from the foregoing
principles are that, firstly, there should be a maximum allowable dose for both
artesunate and artemether when administered by the parenteral routes (only
perhaps this matter has not attracted
the attention of researchers yet), and secondly, both drugs when given by any
parenteral route should demonstrate at least equal potency at doses specified
in current guidelines as maximum daily oral dose for each drug.
QUESTIONS:
1. What are the maximum doses of IV/IM
artesunate and IM artemether in absolute terms?
The opinion of the author is as follows;
•IV/IM Artesunate, max. 200mg per dose
•IM Artemether, max. 160mg per dose
2. When is it appropriate to initiate oral ACT
after initial parenteral treatment?
On the basis of dosage frequency recommended
by current guidelines for parenteral artesunate or artemether, it is very
reasonable to recommend that oral ACT medications be initiated anytime around
24hrs after the last parenteral dose.
3. How safe is a switch to IV artesunate after
an initial IM artemether?
The PubChem monograph on Artemether depicts
that after IM administration artemether is detectable in plasma in appreciable
amounts by 1hr, and peak concentrations are established between 2-4hrs.
In situations when clinicians are considering that giving IV artesunate after an initial IM artemether is an emergency in order to achieve rapid clearance of heavy parasitaemia, the decision should depend mainly on elapsing time interval post IM artemether. Whereas giving IV artesunate within 1hr of IM artemether administration may be safe, the opinion of the author is that the estimated dose of artesunate should be reduced by a margin as a precaution to avoid occurrence of adverse effects. Administration of IV artesunate well after 1hr of IM artemether injection may not be necessary.
Saturday, 7 October 2023
OpenDTC_FAQs
The OpenDTC Collaboration
FREQUENTLY ASKED QUESTIONS
- Why is
exchange of practical information important in the healthcare process?
The young healthcare
practitioner would realize soon after induction that theoretical knowledge does
not always apply directly on the field of practice and that some level of
processing of theoretical information is necessary against a background of
preexisting experience. The formation of The OpenDTC Collaboration was
motivated by the philosophy that excellence in medical practice depends less
(around only 40 per cent) on theoretical knowledge and very much (around 60 per
cent) on practical experience gathered on the field of practice. Considering
the immensity of practical information as an important resource in the
healthcare process and bearing in mind the fact that an individual healthcare
practitioner will at all times be limited in scope of experience already
attained, there was identified the necessity of having in place a system or mechanism
by which practical information could be exchanged between practitioners across
all practice environments.
- Who can join
The OpenDTC Collaboration?
The OpenDTC
Collaboration is an interdisciplinary platform for networking healthcare
practitioners from various professional backgrounds and the full spectrum of
clinical practice settings. The other important prerequisite for membership is
that the practitioner should be duly registered and in good standing with the
designated professional regulatory authority.
- How do I
apply for membership?
Membership is granted
after completing the designated form for registration of the practitioner's
personal and professional data with the Secretariat. Kindly consult the
Secretariat for further assistance.
- How much do
I pay for membership?
Both the initial
registration and membership of The OpenDTC Collaboration are free of charge at
all times.
- What is the
difference between a member and subscriber?
The designation of
Subscriber is applied only for the purpose of discussions on the official
Channel of The OpenDTC Collaboration on the Telegram app. All members
automatically become subscribers to the Channel after registration.
- Why do I
have to subscribe to the Channel?
The official Channel
of The OpenDTC Collaboration on the Telegram app is the sole medium for
exchange of practical information among members of the Collaboration. Messages
posted on the Channel are case studies or reviews from individual members after
going through and passing a process of peer-review.
The Channel is linked
to an external group discussion page on the same platform to enable members to
comment on and discuss messages posted.
- What are
case studies or case reviews?
A case study is
defined as the active study or attentive monitoring of an individual patient, a
cohort of patients, an intervention, a procedure, or a medical technology on
the field of practice in an attempt to answer yet unresolved questions or find
new practical information. The case study must of necessity be a firsthand
experience on the field of practice and either confirm an existing knowledge or
expand the frontiers of practical information available for the healthcare
process.
On the contrary, a
case review differs from case study in being retrospective in approach.
- What is the
attribution policy for case studies published?
Case studies or
reviews that are published on the official Channel after successful peer-review
ordinarily are appended with the names, professional titles and affiliations of
authors who contributed them. However, a member also has the option to have
case studies or reviews published anonymously on the Channel.
- What happens
during peer-review of case studies or reviews?
The Secretariat has
in place an editorial committee made up of eleven (11) members for each
particular health profession or specialty of medical practice for the purpose
of peer-review and approval of case study reports before publication. After
receiving the script for a case study or review report, this is forwarded to
members of the appropriate editorial committee to review the content and assess
the practical relevance of that material on the basis of predetermined
criteria. All case study reports will either be rejected or accepted for
publication on the recommendations of the editorial committees.
- Can I serve
on an editorial committee?
Definitely. Kindly
verify with the Secretariat for vacancy on the editorial committee for your
profession.
- How does The
OpenDTC Collaboration contribute to continuous professional development of
healthcare practitioners?
The reality is that
the individual healthcare practitioner will never get the opportunity of
exposure to all practice environments throughout a lifetime, but still a wealth
of practical experience gathered on the front of diverse practice settings is
an aid to professional excellence. It is therefore imperative that the
healthcare practitioner depends on the experiences of colleagues, from which
wealth of information he or she can draw when faced with similar situations.
The Channel provides a mechanism for unifying practical experience across the
full spectrum of the healthcare sector by means of the published peer-reviewed
case studies and reviews.
The OpenDTC
Collaboration is accredited by various professional regulatory authorities as a
provider of continuous professional education (CPD/CME/CPE) to healthcare
practitioners. Every member of The OpenDTC Collaboration is awarded with two (2)
credit points annually for membership. Kindly consult the Secretariat to verify
CPD accreditation status for your profession.
An individual
practitioner additionally will be awarded with credit points for publishing
case studies or reviews on the Channel, as explained in the following section.
- What CPD
credit point award scheme is applied?
Beside the award of
two (2) CPD credit points annually for membership of The OpenDTC Collaboration,
a member also obtains additional CPD credit points for case studies or reviews
successfully peer-reviewed and published on the Channel. Two (2) CPD credit
points are awarded to an author for presenting a total of five(5) case studies
or reviews through the peer-review process. The tally of count of published
contributions from the same author may extend over one calendar year but once
an award has been issued the same case studies do not qualify for re-award.
However, an already published case study or review may be republished multiple
times.
- What is the
meaning behind the name OpenDTC?
OpenDTC is an acronym
for Open Drugs and Therapeutics Committee, a DTC unlimited by geographical
boundaries and practice settings. Globally the DTC is an organ of healthcare
institutions responsible for clinical governance and quality assurance of the
healthcare process, and is usually constituted with representatives from the
various health professions.
The OpenDTC
Collaboration has a nationwide scope of activity.
- How can I
contact the Secretariat?
Send an email message through fleshandbrain@live.com, or call +233242162382, +233206120649.
Wednesday, 27 September 2023
Phosphorus
The term “phosphorus” was originally used to describe any physical substance which after some exposure to light would glow when put in darkness. Now, “Phosphorus” is the name given to the chemical element with atomic number 15, symbol P, and atomic weight of 30.97. Historical accounts have it that a certain Hennig Brand first prepared Phosphorus in the year 1669 by the process of destructive distillation of urine.
The focus of this essay is to briefly discuss the medical
importance of this element.
The natural
distribution of Phosphorus
Phosphorus does not occur in nature as the pure elemental
substance, but combined with oxygen as the phosphate ion (PO43-)
it is widely distributed throughout the lithosphere, hydrosphere and biosphere
of our planet Earth. This is to say that as the phosphate ion Phosphorus is
universally distributed throughout the earth crust and its mineral resources,
the oceans and waterbodies, and all the living organisms of this planet. As a
monument to the great importance of Phosphorus to the life courses on Earth
nature intervened with the phosphorus cycle, a complex network of geological
processes which are constantly in operation to recycle the phosphate ion
through these three spheres of life on our planet.
In the lithosphere Phosphorus occurs as deposits of calcium
phosphate minerals, otherwise known as phosphate rocks. These mineral deposits
are predominantly insoluble in water and hence immobile. The natural process of
weathering breaks down these rocks to very fine particles in the passage of
time, upon which rainwater subsequently acts, dissolves, releases and carries
the phosphate ion in the running stream. This latter process is termed
leaching. The fate of the phosphate ion formed depends much on its destination.
It may be absorbed with groundwater and utilized as an essential nutrient by
plants, and also by lower living species that can utilize phosphate ion as a
source of Phosphorus. Humans and animals cannot utilize the phosphate ion
directly but otherwise obtain their supply of Phosphorus by consuming plants
mainly. This describes a bird’s-eye view of the movement of Phosphorus from the
lithosphere to the biosphere. The death and consequent decomposition of living
organisms represents a reverse process which returns phosphate ions from the
biosphere to the lithosphere.
The phosphate ion carried in running water may end up in the
waterbodies, and there combine with mostly calcium ions, but also with aluminum
and iron to some extent, and then precipitate as insoluble mineral species.
The following discussion of how Phosphorus occurs in humans
typically reflects the occurrence of this element in all of the biosphere.
The occurrence of
Phosphorus in humans
I open this section with the following quotation from Mellor’s
Treatises: “Phosphorus was on the earth in gaseous, liquid, or solid form
before the dawn of life, and since then, all animal and vegetable creations
have combined with the physical forces always at work in inanimate nature to
distribute and redistribute the phosphorus, to divide it up, and carry it from
place to place. If the biography of atoms could be written, the chapters on
phosphorus would be the most interesting and the most varied. --- WBM Davidson,
1893”.
Human life depends on Phosphorus for its existence and it is
inconceivable if any other chemical element could match it in importance in
this regard. Phosphorus occupies the core of both the tissues (structure) of
humans and the metabolic processes (function) that occur therein, as exemplified
by the discussions below.
BONE. The bones impart shape to the human body, make movement
possible, and provide protective housing for marrow which is the organ within
which blood is made. Bone tissue is made up of a network of collagen protein
fibres, strengthened with a derivative compound of Phosphorus known as
hydroxylapatite. In terms of bulk this hydroxylapatite constitutes more than
half the mass of the hard bone tissue, and imparts mechanical strength to the
bone. The hydroxylapatite of bone is a variant of the compound calcium
phosphate Ca3(PO4)2 wherein Phosphorus is
combined with calcium and oxygen, this basic material is hydrated with water
molecules, and there is trace amounts of other ions such as magnesium, fluoride,
chloride and carbonate. It is not known why nature chose Phosphorus above every
other element as the core of this important bone tissue, and what substitution
of Phosphorus with any other element means for the structural integrity of bone
tissue, but what has been said already is the natural state of affairs. It is
what it is, and it can be said again that Phosphorus is an essential element
for the formation of bone tissue.
TEETH. Human teeth is a bony structure and what has been
said above about the importance of Phosphorus to the structural makeup of bones
holds true to a very large extent. Phosphorus is also at the core of the
structure and strength of human tooth enamel.
CELL MEMBRANE. The main building blocks of the cell membrane
of every living cell are phospholipids, four kinds of which are known to occur
naturally in humans namely phosphatidylcholine, phosphatidylethanolamine,
phosphatidylserine and phosphatidylinositol. In a typical cell membrane these
chemical substances are arranged in a mosaic pattern of double layer encasing
the cellular subunits to form a separate entity, an arrangement which makes the
cell membrane fluid in structure and also imparts on the cell adaptive
characteristics to survive in the aquatic environment prevalent within human
tissues. All four of these phospholipids are in chemical nature compounds of
Phosphorus, in which this essential element as the phosphate intermediate is
chemically combined with a glycerol backbone, fatty acid side chains and either
of choline, ethanolamine, serine or inositol. Again, why the natural order
settled for Phosphorus above every other element in the making of this critical
cellular substructure cannot be told with certainty but the phospholipids
present yet another testimony of how essential our chemical element is to life.
NERVOUS TISSUE. Regular phospholipids and a type of it known
as sphingomyelins form the basic fabric of the nervous tissues of humans, of
which the proportion of sphingomyelins in both the central and the peripheral
nervous system is currently thought to supersede all other tissues of the body.
The element Phosphorus is again deeply embedded in the structures of both of
these chemical substances.
DNA. The storage molecule for genetic information in cells,
deoxyribonucleic acid (DNA), will be in the form of a very long ladder if it
could be straightened out. The rungs on this ladder will be pairings of the
purine bases with pyrimidines, namely adenine with thymine and guanine with
cytosine, in loose chemical bonding that could be likened to two human beings
with an arm each joined palm-to-palm over a large gulley whilst the other arm
of each person is wrapped tightly round a firmly fixed stake on either side of
this gulley. The ease of breaking this chemical union is just as simple as each
person letting go of the arm of the other person. The rail on either side of
this ladder which serves as backbone for the purine and pyrimidine bases is
made up of a small sugar molecule known as deoxyribose and the element
Phosphorus, as its phosphate derivative. Deoxyribose is strongly joined with
phosphate (a derivative of Phosphorus) in covalent bonding in an alternating
arrangement to form the backbone of the DNA molecule on both sides. Thus is the
critical role of the element Phosphorus in the genetic material of cells.
RNA. Ribonucleic acids (RNAs) are usually copied out of
definite segments along the DNA strands and encode the genetic information for
the synthesis of specific functional and structural proteins within cells. One
key difference between DNA and RNA is that the latter is a single strand, very
much like what is formed after cutting a ladder apart along its long axis.
Moreover the RNA molecule is much shorter in length compared to DNA. Otherwise,
phosphate (a derivative of the element Phosphorus) is covalently bonded to
ribose (a derivative of deoxyribose in DNA) in alternating arrangement, with
one kind of purine base or pyrimidine bonded directly to each ribose unit
depending on the gene(s) encoded. Thus, RNAs are again another form in which the
element Phosphorus occurs in humans.
ATP. Biochemists colloquially refer to adenosine
triphosphate (ATP) as the “energy currency” within living organisms. The myriad
of daily life activities which every human being is involved with, and all the
metabolic processes occurring in humans, are all possible because of ATP. Just
as money ATP is simply exchanged between the biological systems and metabolic
processes; ATP is recycled by being consumed in anabolic (synthetic) metabolic
processes and regenerated through catabolic (breakdown) processes.
Structurally, the ATP molecule is made up of adenine, ribose and three
molecules of phosphate (a derivative of the element Phosphorus) in such an
arrangement that the first two components are bonded in one arm whilst the
phosphate fragments are bonded one to another as in a chain in a separate arm
of the ribose unit. Cleavage of the phosphate bonds of ATP releases energy, and
their formation is a mechanism for entrapment and storage of chemical energy in
biological systems. We again see our element Phosphorus in ATP molecules.
PHOSPHORYLATION. Almost all enzymes, B-complex vitamins and
most other functional proteins in the body are activated through a process
known as phosphorylation. These biological components are otherwise inactive
and as such useless to the body; by means of the mechanism of phosphorylation
these vital principles are kicked to action. The process of phosphorylation
simply is the bonding of a phosphate (a derivative of the element Phosphorus)
group to the inactive principle, which instantaneously imparts activity to the
component involved. The source of phosphate for the purpose of phosphorylation
is varied but is mostly obtained from ATP. Our interest here in this vital
process of life is the involvement of the element Phosphorus, which is
presented as its derivative phosphate.
Significance of
Phosphorus in human disease
The reader should appreciate by now that very scientific and
rational considerations underlie the attempt of this author to relate the
element Phosphorus to human disease. The supply of Phosphorus to a human being
is dynamic, this element predominantly obtained as organic phosphate compounds
in the diet. Depending on the richness of diet in terms of these phosphate
compounds, however, the supply of Phosphorus to the human consumer could be
more or less inadequate. Insufficient consumption of phosphate derivatives as
nutrients in diet over a long period of time will lead to Phosphorus (or
phosphate) deficiency, with deleterious consequences on multiple organ systems
of the human body.
The fact that Phosphorus exits in the human body in a
dynamic equilibrium and what that means as a contributory factor to human
disease has evaded popular attention. In pursuance of an orientation to such an
idea the following quotation is made verbatim from Mellor’s Treatises: “The
waste of muscular and nervous tissue involves a decomposition of the phosphorus
compounds. The products of decomposition are carried by the blood to the
kidneys, and there excreted with the urine chiefly as sodium ammonium
phosphate. There seems to be a relation between the amount of phosphorus
compounds discharged from the system, and the activity of the brain, and this
led to the inference that phosphorus is a metabolic product of the activity of
the brain, and that phosphate foods are needed for brain workers. The idea has
crystallized in the well-worn phrase ‘ohne Phosphor kein Gedanke’, without
phosphorus no thought. A normal adult excretes the equivalent of 3 to 4g of
phosphoric acid per diem. Part of this is derived from the food, and part from
muscular waste”.
The physiological state during which the levels of
Phosphorus in the human body is consistently lower than what is needed to
support metabolism is referred to as hypophosphataemia. According to a
factsheet recently published by the National Institutes of Health (NIH, USA)
the effects of hypophosphataemia on health can include anorexia, anaemia,
proximal muscle weakness, skeletal diseases (bone pain, rickets, osteomalacia),
increased infection risks, paraesthesias, ataxia, and confusion. In the opinion
of this author hypophosphataemia results to degeneration and failure of
multiple organ systems of the human body, and is a major underlying cause for
ailments including asthenia, muscular weakness, chronic fatigue syndrome,
neuropathy, and osteoporosis.
Supplementation of
Phosphorus
The author affirms that medical treatments for the ailments
namely asthenia, chronic fatigue syndrome, peripheral neuropathies, and
osteoporosis should always be supported with supplementation of Phosphorus. However,
the Phosphorus in its pure elemental form is extremely poisonous and cannot be
taken. Calcium phosphate may be safely used for this purpose, from which after
digestion Phosphorus is absorbed as phosphoric acid into the bloodstream for
further processing. Although calcium phosphate falls short of the ideal as a
source of Phosphorus by reason of its high content of calcium ions, with
evidence emerging to increasingly implicate calcium ion in the causation of
some cardiovascular diseases.
The soluble alkali metal salts of phosphate should also be
avoided as a source of Phosphorus. Among this group are sodium triphosphate,
sodium hydrogen phosphate, sodium dihydrogen phosphate, and their potassium
counterparts. These salts are not safe for internal consumption as they are
associated with much greater risk for precipitating insoluble stones in body
tissues and the kidneys.
The ideal form of Phosphorus for supplementation is
phosphoric acid (H3PO4). The latter is water-soluble and
readily absorbed from the intestines into the bloodstream. Once absorbed
phosphoric acid is fed directly into the body’s metabolic processes wherein the
phosphate ion is required. The big note of caution here is that by phosphoric
acid is meant a finished pharmaceutical preparation including phosphoric acid
as a major active ingredient. The phosphoric acid of commerce is a very pure
and strong acid which can easily destroy the tissues of the body. The layman
should have nothing to do with this form of phosphoric acid, and at best,
should never keep stock of it at home. Reference is here made to phosphoric
acid which has been professionally diluted by a pharmacist or prepared ready to
consume as a finished pharmaceutical product. These forms are usually given
with specific instructions for further dilution so that the consumer is guided
to safely administer them.
References:
·
JW Mellor (1947). A comprehensive treatise on
inorganic and theoretical chemistry, vol. 8, pp 732, 737. Longman, Green and
Co.
· NIH (USA). Phosphorus – Fact Sheet for health professionals. Online resource accessed at https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/#en1. Date: Friday, 25 August 2023.
Monday, 19 September 2022
Contra-Darwinian evolution, or devolution theory
It is not
known yet whether Darwin himself or any of the classical theorists recognized
and ever discussed the opposite process by which living organisms lose both
form and function in the passage of time. The orthodox doctrine of biological
evolution projects a progressive course, in the sense that organisms develop
finer forms and functions to survive within hostile environments around them as
time passes. The changing environment makes it imperative for living organisms
to develop adaptive characteristics in order to survive, and organisms that are
unable to adapt to a changing environment in accordance with this natural law
are exterminated from existence. An inherent presumption in the classical
theory of biological evolution is that living organisms progressively become
better in both form and function in respect to the external environment within
which they live.
The
opposite process whereby living organisms lose form and function, that which in
this piece is described as contra-Darwinian evolution or devolution theory,
perhaps, has evaded general attention. At least this latter process is not as
so much discussed as classical evolutionary theory. However, it will be a
mistake of immense proportion to assume that extinction of biological species
consequent in Darwinian evolution always occur spontaneously through
catastrophic causes. Although natural catastrophes are not excluded from the
possible mechanisms of natural selection, of greater importance is the subtle
process of devolution (deterioration) through which living organisms are
stripped of vital characteristics which deprive them of the capacity to survive
within their environments. The devolution of living organisms, which by reason
of its occurrence at the cellular level is imperceptible to the observer,
mostly accounts for the periodic changes in form and function that affect all
living organisms.
Therefore,
not only do biological species evolve in the passage of time. They also
devolve. The opposite biological processes of evolution and devolution are in
constant parity, and together regulate form and function in the biosphere. Both
processes are ever occurring at the subcellular and cellular levels in opposite
directions, in response to ever changing environmental conditions, and
culminate in periodic changes in the structure and functions of biological
species.
The
devolution theory has practical significance a sketch of which is discussed in
the following sections.
Origin of unicellular species
Unicellular
species are relics of multicellular organisms and emerge in the process of
devolution of higher living organisms. Each individual cell of multicellular
organisms are self-sustaining to some extent and can survive for a limited
period independently of other cells in the tissues in which they co-occur. In
the cellular economy of multicellular tissues each cell is constantly exposed
to threats from both the extracellular and external environments, albeit in
various degrees, which makes them susceptible to devolution. The cells that are
impinged the hardest tend to lose some of their original functions and
structure. If during this process the essential structures which enable the
affected cell to attach to other cells to participate in the cellular economy
are lost, that cell is sloughed from within the tissue. This does not mean
instant cell death. Subsequently the sloughed cell can continue to live
independently for a time, the length of which time depends on the prevailing
environmental conditions. Apart from unicellular species emerging from this
endogenous route from living higher organisms, the decay of dead multicellular
organisms is another important mechanism which adds to the pool of unicellular
species.
The fate
of cells after detachment from source tissues may be any of the following;
firstly, instant cell death can occur. Secondly, other intervening conditions
within the environment drive further the process of devolution. The cell
continues to lose essential organelles and vital structures and in the process
changes to completely new cellular species. In the terminal stage the unicellular
species that finally emerge will be very dissimilar to cells of the source
tissue. Or thirdly, the process of devolution halts and, if the surrounding
environment is favourable for it, the entrant species begins to replicate more
of its kind. The gist of this discussion is that unicellular species emerge
from multicellular organisms through the process of devolution and not in the
reverse direction as is posited in classical evolutionary theory.
Medical significance
The
theory of biological devolution may be applied in the fields of medical
microbiology, oncology and rheumatology. The search for effective treatment
options for the medical conditions which occur in these three fields should be
pursued bearing in mind their pathological convergence in the devolution of the
human body and physiology. In medical microbiology recognition to endogenous
infection states is necessary, apart from the already known fact that
infectious agents may also intrude the human body from the external
environment. Thus, an infectious agent may devolve internally from normal cells
of the human body and not always have to invade from outside the body. The
common feature in both cases is that the infectious agent has reserved ability
to attach to normal cells of the body.
Oncological
and rheumatic lesions similarly arise from normal cells in the process of
devolution of the human body, with degeneration in rheumatic diseases advanced
to such an extent that cellular debris produced during devolution contribute
substantially to disease development. The deductive proposition in this
discussion is that any therapeutic option which works for medical conditions in
one of these fields may equally be effective for conditions occurring in the
other two fields.
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