Hepcidin is the key regulator of body iron content and is produced by the liver. It determines how much iron is absorbed from the diet and released from storage sites. Two genes, HFe2 and Tmprss6, help regulate hepcidin levels to prevent excess or deficiency of iron. HFe2 stimulates expression of the HAMP gene which encodes hepcidin, while Tmprss6 leads to suppression of HAMP expression. These two genes work together to maintain normal iron levels in the body through their effects on hepcidin production and regulation of intestinal iron absorption.
Parathyroid hormone (The Guyton and Hall physiology)Maryam Fida
Parathyroid hormone
Calcium salts in bone provide structural integrity of the skeleton
Calcium ions in extracellular and cellular fluids is essential to normal function of a host of biochemical processes
Neuoromuscular excitability
Blood coagulation
Hormonal secretion
Enzymatic regulation
The important role that calcium plays in so many processes dictates that its concentration, both extracellulary and intracellulary, be maintained within a very narrow range.
Normal level of calcium is about 9.4 mg/dl.
0.1 % extracellular fluid
1 % stored in cells (mitochondria and ER)
99% stored in bones in hydroxyapatite crystals. Very little Ca2+ can be released from the bone– though it is the major reservoir of Ca2+ in the body.
Calcium in Plasma is present in three forms:
1. Ionized and diffusible calcium 50%
2. Protein-bound calcium 41% non diffusible form
90% bound to albumin
Remainder bound to globulins
3. Calcium complexed to serum constituents 9%
Citrate and phosphate
Parathyroid hormone (The Guyton and Hall physiology)Maryam Fida
Parathyroid hormone
Calcium salts in bone provide structural integrity of the skeleton
Calcium ions in extracellular and cellular fluids is essential to normal function of a host of biochemical processes
Neuoromuscular excitability
Blood coagulation
Hormonal secretion
Enzymatic regulation
The important role that calcium plays in so many processes dictates that its concentration, both extracellulary and intracellulary, be maintained within a very narrow range.
Normal level of calcium is about 9.4 mg/dl.
0.1 % extracellular fluid
1 % stored in cells (mitochondria and ER)
99% stored in bones in hydroxyapatite crystals. Very little Ca2+ can be released from the bone– though it is the major reservoir of Ca2+ in the body.
Calcium in Plasma is present in three forms:
1. Ionized and diffusible calcium 50%
2. Protein-bound calcium 41% non diffusible form
90% bound to albumin
Remainder bound to globulins
3. Calcium complexed to serum constituents 9%
Citrate and phosphate
Parathyroid hormone (PTH), parathormone or parathyrin, is secreted by the chief cells of the parathyroid glands as a polypeptide containing 84 amino acids. It acts to increase the concentration of calcium (Ca2+) in the blood, whereas calcitonin (a hormone produced by the parafollicular cells (C cells) of the thyroid gland) acts to decrease calcium concentration. PTH acts to increase the concentration of calcium in the blood by acting upon the parathyroid hormone 1 receptor (high levels in bone and kidney) and the parathyroid hormone 2 receptor (high levels in the central nervous system, pancreas, testis, and placenta).PTH half-life is approximately 4 minutes. It has a molecular mass of 9.4 kDa.
Short and brief presentation of anatomy, physiology , disorder and management of parathyroid glands.
management of MEN syndrome, hyper and hypoparathyroidism.
disorder of calcium metabolism like tetany,.
surgical steps of parathyroidectomy with indication and complications
Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods. Humans usually have four parathyroid glands, located on the back of the thyroid gland in variable locations. The parathyroid gland produces and secretes parathyroid hormone in response to a low blood calcium, which plays a key role in regulating the amount of calcium in the blood and within the bones.
Parathyroid glands share a similar blood supply, venous drainage, and lymphatic drainage to the thyroid glands. Parathyroid glands are derived from the epithelial lining of the third and fourth pharyngeal pouches, with the superior glands arising from the fourth pouch and the inferior glands arising from the higher third pouch. The relative position of the inferior and superior glands, which are named according to their final location, changes because of the migration of embryological tissues.
Hyperparathyroidism and hypoparathyroidism, characterized by alterations in the blood calcium levels and bone metabolism, are states of either surplus or deficient parathyroid function.
Parathyroid hormone (PTH), parathormone or parathyrin, is secreted by the chief cells of the parathyroid glands as a polypeptide containing 84 amino acids. It acts to increase the concentration of calcium (Ca2+) in the blood, whereas calcitonin (a hormone produced by the parafollicular cells (C cells) of the thyroid gland) acts to decrease calcium concentration. PTH acts to increase the concentration of calcium in the blood by acting upon the parathyroid hormone 1 receptor (high levels in bone and kidney) and the parathyroid hormone 2 receptor (high levels in the central nervous system, pancreas, testis, and placenta).PTH half-life is approximately 4 minutes. It has a molecular mass of 9.4 kDa.
Short and brief presentation of anatomy, physiology , disorder and management of parathyroid glands.
management of MEN syndrome, hyper and hypoparathyroidism.
disorder of calcium metabolism like tetany,.
surgical steps of parathyroidectomy with indication and complications
Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods. Humans usually have four parathyroid glands, located on the back of the thyroid gland in variable locations. The parathyroid gland produces and secretes parathyroid hormone in response to a low blood calcium, which plays a key role in regulating the amount of calcium in the blood and within the bones.
Parathyroid glands share a similar blood supply, venous drainage, and lymphatic drainage to the thyroid glands. Parathyroid glands are derived from the epithelial lining of the third and fourth pharyngeal pouches, with the superior glands arising from the fourth pouch and the inferior glands arising from the higher third pouch. The relative position of the inferior and superior glands, which are named according to their final location, changes because of the migration of embryological tissues.
Hyperparathyroidism and hypoparathyroidism, characterized by alterations in the blood calcium levels and bone metabolism, are states of either surplus or deficient parathyroid function.
Iron is very important for Hemoglobin synthesis and avoidance for anemia so it is very important to understand to protect us from iron deficiency anemia & Iron overload
This is a slide presentation for MBBS students. a brief overview of hemochromatosis, an iron overload condition. overview of hemochromatosis, pathophysiology, clinical features, approach, and management
Colombian Coffee production and Coffe Cultural Landscapes of Colombia-CCLCLuis Vergara
The importance of coffee in the world's economy ,the reason of the high quality of Colombian Coffee and the lovely landscapes in the Colombian coffee region.
Es un libro muy ameno que describe como se puede percibir una misma situación desde dos puntos de vista completamente diferentes y yuxtapuestos, a través de dos maravillosos ratones que nos dejan muchas enseñanzas con sus procederes tan disímiles.
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.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
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!
The Roman Empire A Historical Colossus.pdfkaushalkr1407
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.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
1. Iron in the body Three gens: Three essential actors HFe2 HAMP Tmprss6
2. Iron in the body Hepcidin It is the key regulator of body iron content. It is the master regulator of enteric iron absorption. It is produced by the liver, and it determines how much iron is absorbed from the diet and released from storage sites in the body. When its synthesis is defective causes iron loading. When over-production, is defective iron release and iron absorption. It is encoded by HAMP ( Hepcidin Antimicrobial Peptide ) that provides instructions for the production of Hepcidin. However has two regulators to prevent excess and deficiency: HFe2 and Tmprss6 genes
3. Normal level Iron excess is regulated through a pathway involving HFe2 that stimulates expression of the Hepcidin encoding HAMP gene. Iron attenuation is countered through a pathway involving the Hepatocyte-specific plasma membrane protease matriptase-2 encoded by Tmprss6 , leading to suppression of HAMP expression. Iron in the body On average, the body absorbs about 10 percent of the iron obtained from the diet. Iron in the body
4. Iron in the body How do they do? HFe2 stimulates expression of the HAMP gene Tmprss6 leading to suppression of HAMP expression.
5. Iron in the body HFe2 The official name is “hemochromatosis”, disorder that causes the body to absorb too much iron from the diet. The HFE protein interacts with other proteins on the cell surface to detect the amount of iron in the body and regulates the production of hepcidin. The regulation of intestinal iron absorption is crucial to avoid toxicity. Disruption of this regulation is hereditary hemochromatosis leads to iron overload, cirrhosis, cardiomyopathy, arthritis and endocrine failure. HFe2 provides instructions for producing hepcidin that is located in the surface of cells, primarily liver and intestinal cells. There are more than twenty mutations in this gen that cause hemochromatosis. Tmprss6 When it detects iron deficiency, blocks HAMP transcription, permitting enhance dietary iron absorption. It is required to sense iron deficiency.