This document provides an overview of biocatalysis and biotransformation. It defines biotransformation as the chemical changes that occur to substances within the body. The major sites of biotransformation are the liver and intestinal mucosa cells, along with other tissues. Biotransformation involves two phases - phase I and phase II reactions. Phase I reactions such as oxidation, reduction and hydrolysis make compounds more polar and functionalized. Phase II then involves conjugating these metabolites to facilitate their excretion, through reactions like glucoronidation and sulfation. Cytochrome P450 enzymes play a key role in many phase I reactions like oxidations, reductions and dealkylations. The overall purpose of biotransformation is to make
Basic principles of genetic engineeringSteffi Thomas
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Industrial uses of microbes, properties of useful industrial microbes, various industrial products, production of enzymes-general consideration-amylase, catalase, peroxidase, lipase, protease, penicillinase, procedure for culturing bacteria and inoculum preparation, submerged fermentation and solid state fermentation, uses of different enzymes
Basic principles of genetic engineeringSteffi Thomas
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Use of microbes in industry. Production of enzymes-General consideration-Amyl...Steffi Thomas
Industrial uses of microbes, properties of useful industrial microbes, various industrial products, production of enzymes-general consideration-amylase, catalase, peroxidase, lipase, protease, penicillinase, procedure for culturing bacteria and inoculum preparation, submerged fermentation and solid state fermentation, uses of different enzymes
Microbes, or microscopic organisms, are widely used in large-scale industrial processes. Microbes can be used to create biofertilizers or to reduce metal pollutants. Microbes can also be used to produce certain non-microbial products, such as the diabetes medication insulin, vaccines, etc. These slides will give insights into uses of microbes in production of enzymes, antibiotics, beverages, vitamins, vaccines, probiotics, etc
Flavonoids classification, isolation and identificationMona Ismail
Flavonoids are groups of polyphenolic compounds which are found in fruits, flowers, seeds & vegetable.
(named from the Latin word flavus meaning yellow, their colour in nature)
Commonly known as its anionic form shikimate, is a cyclohexene, a cyclitol and a cyclohexanecarboxylic acid.
It is an important biochemical metabolite in plants and microorganisms.
Its name comes from the Japanese flower shikimi the Japanese star anise, Illicium anisatum), from which it was first isolated in 1885 by Johan Fredrik Eykman.
The elucidation of its structure was made nearly 50 years later.
Shikimic acid is also the glycoside part of some hydrolysable tannins.
The shikimate pathway is a seven step metabolic route used by bacteria, fungi, algae, parasites, and plants for the biosynthesis of aromatic amino acids (phenylalanine, tyrosine, and tryptophan).
This pathway is not found in animals; therefore, phenylalanine and tryptophan represent essential amino acids that must be obtained from the animal's diet
Animals can synthesize tyrosine from phenylalanine, and therefore is not an essential amino acid except for individuals unable to hydroxylate phenylalanine to tyrosine).
metabolism of xenobiotis, drugs, medicine, carcinogen generation by enzymes like cyt p450 mono oxigenases, prostaglandin synthase ect. alcohol metabolism, toxin metabolism, definition of genobiotics, biotransformation, detoxification. effects on health
Pharmacognosy
Final year B.Pharm
University of Mumbai
Phenylpropanoids are a diverse group of natural products composed of thousands of different compounds, synthesized from the primary metabolites, phenylalanine or tyrosine amino acids, through a series of enzymatic reactions. ... 4-Coumaryl Co-A serves as the common precursor to flavonoid and phenolic acids biosynthesis.
Metabolic Changes of Drugs and Related Organic Compounds describes the human metabolic processes of various functional groups found in therapeutic agents.
The importance of a chapter on metabolism lies in the fact that drug interactions are based on these processes.
For pharmacists, it is necessary for them to understand why certain drugs are contraindicated with other drugs.
This chapter attempts to describe the various phases of drug metabolism, the sites where these biotransformation will occur, the role of specific enzymes, metabolism of specific functional groups, and several examples of the metabolism of currently used therapeutic agents.
Pharmacokinetics involves absorption, distribution, metabolism and excretion. Metabolism involves a huge range of chemical reactions which occur at body temperature with the help of enzymes
cytochrome p450 is an super family of enzyme that contains a heme as co factor that function as monooxygenase. This enzyme has been identified in all kingdoms of life, like fungi, Protista, bacteria, and as well as in virus.
Microbes, or microscopic organisms, are widely used in large-scale industrial processes. Microbes can be used to create biofertilizers or to reduce metal pollutants. Microbes can also be used to produce certain non-microbial products, such as the diabetes medication insulin, vaccines, etc. These slides will give insights into uses of microbes in production of enzymes, antibiotics, beverages, vitamins, vaccines, probiotics, etc
Flavonoids classification, isolation and identificationMona Ismail
Flavonoids are groups of polyphenolic compounds which are found in fruits, flowers, seeds & vegetable.
(named from the Latin word flavus meaning yellow, their colour in nature)
Commonly known as its anionic form shikimate, is a cyclohexene, a cyclitol and a cyclohexanecarboxylic acid.
It is an important biochemical metabolite in plants and microorganisms.
Its name comes from the Japanese flower shikimi the Japanese star anise, Illicium anisatum), from which it was first isolated in 1885 by Johan Fredrik Eykman.
The elucidation of its structure was made nearly 50 years later.
Shikimic acid is also the glycoside part of some hydrolysable tannins.
The shikimate pathway is a seven step metabolic route used by bacteria, fungi, algae, parasites, and plants for the biosynthesis of aromatic amino acids (phenylalanine, tyrosine, and tryptophan).
This pathway is not found in animals; therefore, phenylalanine and tryptophan represent essential amino acids that must be obtained from the animal's diet
Animals can synthesize tyrosine from phenylalanine, and therefore is not an essential amino acid except for individuals unable to hydroxylate phenylalanine to tyrosine).
metabolism of xenobiotis, drugs, medicine, carcinogen generation by enzymes like cyt p450 mono oxigenases, prostaglandin synthase ect. alcohol metabolism, toxin metabolism, definition of genobiotics, biotransformation, detoxification. effects on health
Pharmacognosy
Final year B.Pharm
University of Mumbai
Phenylpropanoids are a diverse group of natural products composed of thousands of different compounds, synthesized from the primary metabolites, phenylalanine or tyrosine amino acids, through a series of enzymatic reactions. ... 4-Coumaryl Co-A serves as the common precursor to flavonoid and phenolic acids biosynthesis.
Metabolic Changes of Drugs and Related Organic Compounds describes the human metabolic processes of various functional groups found in therapeutic agents.
The importance of a chapter on metabolism lies in the fact that drug interactions are based on these processes.
For pharmacists, it is necessary for them to understand why certain drugs are contraindicated with other drugs.
This chapter attempts to describe the various phases of drug metabolism, the sites where these biotransformation will occur, the role of specific enzymes, metabolism of specific functional groups, and several examples of the metabolism of currently used therapeutic agents.
Pharmacokinetics involves absorption, distribution, metabolism and excretion. Metabolism involves a huge range of chemical reactions which occur at body temperature with the help of enzymes
cytochrome p450 is an super family of enzyme that contains a heme as co factor that function as monooxygenase. This enzyme has been identified in all kingdoms of life, like fungi, Protista, bacteria, and as well as in virus.
The all the content in this profile is completed by the teachers, students as well as other health care peoples.
thank you, all the respected peoples, for giving the information to complete this presentation.
this information is free to use by anyone.
This chapter will cover the important aspects related to the Biotransformation. it is a brief summary and concise form for students. if there is any mistake, please help me to correct it.
Thanks
Amjad Anwar Pharmacist
Mass- 3rd lecture
Ionization methods
Electron Impact (EI),
Chemical Ionization (CI),
Field Desorption (FD),
Fast Atom Bombardment (FAB),
Plasma Desorption (PD),
Matrix assisted laser desorption (MALDI),
Thermospray Mass and
Electrospray(ESI)
Analysis techniques
Magnetic Sector
Quadrupole
Ion Trap
Time-of-Flight (TOF)
Fourier Transform (FT)
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
3. Biotransformation
■ "Biotransformation is the chemical change (transformation) of a
substance (xenobiotic) within the body”.
ELIMINATION MECHANISMS
■ Physical mechanism: EXCRETION
■ Chemical mechanism: BIOTRANSFORMATION
4.
5. The sites of biotransformation:
■ Predominantly, the liver
The liver contributes to both the presystemic and the systemic
elimination of many drugs.
■ Other tissues, as well. e.g., in intestinal mucosa cells
presystemic elimination of several drugs
■ In renal tubular cells, etc
■ The colon, by bacteria - e.g., azo reduction, hydrolytic
reactions
9. Phase I Reactions
► Convert parent compound into a more polar
(=hydrophilic) metabolite by adding or unmasking
functional groups (-OH, -SH, -NH2, -COOH, etc.)
► Often these metabolites are inactive
► May be sufficiently polar to be excreted readily
– Oxidation – Reduction
– Hydrolytic cleavage
– Alkylation (Methylation)
– Dealkylation – Ring cyclization
– N-carboxylation – Dimerization
– Transamidation – Isomerization
– Decarboxylation
10. Phase II Reactions
– Conjugation with endogenous substrate to
further increase aqueous solubility
– Conjugation with glucoronide, sulfate, acetate,
amino acid
– Phase I usually precede phase II reactions
11. Purpose of biotransformation
• Converts lipophilic to hydrophilic compounds
• Facilitates excretion
Consequences
• Changes in PK characteristics
• Detoxification
• Metabolic activation
Types
Phase I Phase II
Types of reactions Hydrolysis
Oxidation
Reduction
Conjugations
Increase in
hydrophilicity
Small Large
General mechanism Exposes functional group Polar compound added to
functional group
Consquences May result in metabolic activation Facilitates excretion
12.
13.
14. PHASE I BIOTRANSFORMATIONS
CYP is a heme-containing protein embedded in the membranes of the smooth
endoplasmic reticulum (SER),
Origin of the name cytochrome P-450:
Cytochrome: it is a colored intracellular protein
P: it is pink
450: its absorption spectrum has a maximum at 450 nm
15. CYP can also catalyze dehydrogenation,
Surprisingly, CYP may also catalyze reduction
16. Humans have 18 families of cytochrome P450
genes and 43 subfamilies:
CYP2 drug and steroid metabolism
CYP4 Arachidonic acid or fatty acid metabolism
CYP5 Thromboxane A2 synthase
CYP7A Bile acid biosynthesis (7-alpha hydroxylase of steroid nucleus)
CYP7B Brain specific form of 7-alpha hydroxylase
CYP8B
CYP27A
Bile acid biosynthesis
CYP11
CYP19
CYP21
Steroid biosynthesis
CYP17 Steroid biosynthesis (17-alpha hydroxylase)
CYP24 Vitamin D degradation
CYP26A Retinoic acid hydroxylase important in development
CYP39 7 alpha hydroxylation of 24 hydroxy cholesterol
CYP46 Cholesterol 24-hydroxylase
CYP51 Cholesterol biosynthesis (lanosterol 14-alpha demethylase)