1. The document discusses the physical and chemical properties of amino acids, including their solubility, taste, melting points, ability to absorb ultraviolet light, and chirality.
2. It also describes how amino acids can act as acids or bases depending on the pH, existing as zwitterions at physiological pH with both positive and negative charges.
3. Several biologically active oligopeptides are discussed, including hormones like oxytocin, vasopressin, angiotensin, and neuropeptides like methionine enkephalins. Other peptides mentioned include glutathione, bradykinin, carnosine, antibiotics, and the artificial sweetener aspartame.
De novo and salvage pathway of nucleotides synthesis.pptx✨M.A kawish Ⓜ️
This slides explains Metabolism topic "De novo and salvage pathway of nucleotides synthesis. In which synthesis of Purines and pyrimidines synthesis has been occurred. In last there is a difference between these two pathways.
Water soluble vitamin pyridoxine (vitamin B6) introduction, Chemistry of vitamin B6, Biochemical role of vitamin B6, active form of vitamin B 6 (pyridoxal phosphate) synthesis and their role, Recommended dietary allowance of vitamin B6, Dietary sources of vitamin B 6, Deficiency symptoms of Vitamin B6.
De novo and salvage pathway of nucleotides synthesis.pptx✨M.A kawish Ⓜ️
This slides explains Metabolism topic "De novo and salvage pathway of nucleotides synthesis. In which synthesis of Purines and pyrimidines synthesis has been occurred. In last there is a difference between these two pathways.
Water soluble vitamin pyridoxine (vitamin B6) introduction, Chemistry of vitamin B6, Biochemical role of vitamin B6, active form of vitamin B 6 (pyridoxal phosphate) synthesis and their role, Recommended dietary allowance of vitamin B6, Dietary sources of vitamin B 6, Deficiency symptoms of Vitamin B6.
Glycolysis (from glycose, an older term for glucose + -lysis degradation) is the metabolic pathway that converts glucose C6H12O6, into pyruvate, CH3COCOO− + H+. The free energy released in this process is used to form the high-energy molecules ATP (adenosine triphosphate) and NADH (reduced nicotinamide adenine ...
This was a report regarding amino acids and peptides that was prepared by our group and this report made in order to make a score. Hope this slide makes more it to be on help.
Glycolysis (from glycose, an older term for glucose + -lysis degradation) is the metabolic pathway that converts glucose C6H12O6, into pyruvate, CH3COCOO− + H+. The free energy released in this process is used to form the high-energy molecules ATP (adenosine triphosphate) and NADH (reduced nicotinamide adenine ...
This was a report regarding amino acids and peptides that was prepared by our group and this report made in order to make a score. Hope this slide makes more it to be on help.
This slide show is about overview of building blocks of life i.e. amino acids. It is describes physical, chemical properties, classification, biological functions, modified products of amino acids and biosynthesis of amino acids.
Alkaloids presented by Dhanashree Kavhale M.Pharm. I semester (Pharmaceutical Chemistry)
Alkaloids are secondary metabolites produced by plants in a unique pattern.
Table of Contents
What are Amino Acids?
Properties of Amino acids
Physical Properties
Chemical Properties
Structure of Amino acids
Classification of amino acids on the basis of R-group
Classification of amino acids on the basis of nutrition
Essential amino acids (Nine)
Non-essential amino acids (Eleven)
Classification of amino acids on the basis of the metabolic fate
Functions of Amino acids
Introduction to secondary metabolites:
Definition, classification, properties and test for identification of Alkaloids,
Glycosides, Flavonoids, Tannins, Volatile oil and Resins
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
3. Sweet:-
Bitter:-
Tasteless:-Leucine
3
Glycine, Alanine,Valine, Serine
tryptophan, histidine and proline
Isoleucine and arginine
Dr GayathriG Nair
4. Melting point:
all amino acids have high melting points
more than 2000 c
ABSORBS ULTRAVIOLET LIGHT:The
aromatic amino acids viz tryptophan,
tyrosine ,phenylalanine and histidine.
4Dr GayathriG Nair
5. Amino acids having asymmetric carbon atom
exhibit optical activity
Asymmetry arises when 4 different groups
are attached to the same carbon atom
Glycine is the simplest
amino acids with no
asymmetric carbon
atom and optically
inactive
5Dr GayathriG Nair
6. The mirror image forms
produced with reference
to alpha carbon atom are
called D & L isomers
L-AA occur in nature
therefore are called
natural amino acids
D-AA seen in small
amounts in micro
organisms and as
constituents of certain
antibiotics .
6Dr GayathriG Nair
7. All amino acids have acidic(carboxyl ) and basic (amino)
group
Acid –base behaviour : the carboxyl group of an amino
acid can donate one proton (H+ ) and behave as an acid
forming an negatively charged anion
Similiarly amino group can accept a proton and behave
as base forming positively charged cation
Substances having two way property are called
ampholytes or amphoteric
Amino acids have both acidic and basic groups and are
amphoteric in nature
7Dr GayathriG Nair
8. Zwitter in german means hybrid
At physiological pH;
The carboxyl group exists as carboxylate ion
coo-
And amino group is in the protonated form
NH3+
Mono amino mono carboxylic acids exist in
aqueous solution as dipolar or zwitter ion
which means that they have both positive and
negative charges on the same amino acids
The overall molecule is electrically neutral
8Dr GayathriG Nair
9. Definition:Thus the molecular species which
contain equal number of ionizable group of
opposite charge and as a result bear no net
charge are zwitter ion
As amino acids are both a proton donor and a
proton acceptor it is an ampholyte
9Dr GayathriG Nair
10. The pH at which the molecules carry no net
charge is known as isoelectric point or
isoelectric pH
The amino acids at its isoelectric pH does not
move in electric field as it carries no net charge
10Dr GayathriG Nair
11. Amino acids exerts chemical properties
because of their
Carboxyl group
Amino group
Side chain ‘R’
All amino acids contain first two groups and
hence undergo chemical reaction
characteristic for these group
11Dr GayathriG Nair
12. Reactions Answered by group
Biuret reaction Nitrogen in Peptide bonds
Ninhydrin Alpha amino group
Xanthoproteic test Benzene ring(phe,tyr,trp)
Millons test phenol(tyrosine)
Aldehyde test Indole (tryptophan)
Sakaguchi test Guanidinium (arginine)
Sulphur test Sulfhydryl (cysteine)
Pauly’s test Imidazole (histidine)
12Dr GayathriG Nair
15. Some of the biologically active oligopeptides
are:
1. THYROTROPIN RELEASING HORMONE
(TRH) is a tripeptide
Hormone secreted from hypothalamus
stimulate pituitary gland to releaseTSH
15Dr GayathriG Nair
16. 2. GLUTATHIONE:Tripeptide,found in all
mammalian cell except neurons with the
sequence of glu-cys-gly
Found in all mammalian cells except
neurons
Maintains RBC membrane integrity
Involved in detoxification mechanism
Transport of aa across the cell membrane.
16Dr GayathriG Nair
17. 3. Oxytocin: It’s a nano peptide (9 AA), a
hormone of posterior pituitary gland
Function: contraction of uterus
17Dr GayathriG Nair
18. 4. Vasopressin/antidiuretic hormone:
Nanopeptide
It is secreted from posterior pituitary gland
Function: retention of water from renal
tubules. Increases BP
18Dr GayathriG Nair
19. 5. Angiotensin:
Angiotensin I is a decapeptide
Angiotensin II is a octapeptide, vasoconstrictor
Functions:
1) Raises blood pressure by stimulation of
adrenal gland
2) Release of aldosterone that promote sodium
retention
19Dr GayathriG Nair
20. 6. Bradykinin :Nanopeptide,
Powerful vasodilator and causes contraction
of smooth muscle
Responsible for producing peripheral and
visceral pain by stimulating pain receptors
Mediates production of Pg’n E2 from
arterial walls
7. Kallidin: Decapeptide, vasodilator
20Dr GayathriG Nair
21. 8. Methionine encephalins:
Pentapeptide found in brain
Binds to receptors in certain cells of brain
and induce analgesia (decreases pain
sensations)
9. Aspartame:
Commercially synthesized ,
Dipeptide (aspartic acid + phenylalaninie)
Its an artificial sweetner
Unsuitable for phenyl ketonurics
21Dr GayathriG Nair
22. 10. Antibiotics:Gramicidin S
An antibiotic produced by bacillus brevis
Decapeptide
It contains D-phenylalanine,
11.CARNOSINEAND ANSERINE: Dipeptide with
sequence beta-Alaninie+ Histidine
Carnosine stimulates muscle contraction
and it is methylated to form anserine
both are present in skeletal muscle
22Dr GayathriG Nair