Assignment on Toxicokinetics- Toxicokinetic evaluation in preclinical studies, saturation kinetics Importance and applications of toxicokinetic studies. Alternative methods to animal toxicity testing.
Assignment on Toxicokinetics- Toxicokinetic evaluation in preclinical studies, saturation kinetics Importance and applications of toxicokinetic studies. Alternative methods to animal toxicity testing.
Acute eye irritation test as per OECD guidelinesmadhvi Chaubey
toxicological testing studies as per OECD guidline.
Toxicology is the branch of biology, chemistry and medicine concerned with the study of the adverse effects of chemicals on living organisms.
As per OECD test no. 405 : acute eye irritation test should be done as according to the procedure mentioned under guideline's section.
Dear Friends,
This is my 3rd presentation, which will help you to understand the depth knowledge of acute eye irritation/corrosion (OECD-405) study in rabbit.
REPRODUCTIVE TOXICITY STUDIES, Definition
Introduction, OECD guidelines for reproductive toxicity studies
Principle of the test, Description of Method, Procedure, Experimental Schedule, Data and Reporting, Results, Male Fertility Toxicological Studies
Ms. I. Sai Reddemma.
Department of Pharmacology
OECD Test Guideline 420: Acute Oral Toxicity - Fixed Dosepp_shivgunde
OECD Test Guideline 420: Acute Oral Toxicity - Fixed Dose
Guideline 420 was adopted in July 1992 as the first alternative to the conventional acute toxicity test.
Alternative methods to animals testing are the development and implementation of test method that avoid use of live animals or use of less animals in method.
The council directive on protection of animals used for experiments and scientific purpose in article 23
“The commission and member states should encourage
research into development and validation of alternative methods which could provide the same level of information as that obtained in experiment using animals but which involves less animal”.
Alternative methods able to do:
Reduce Refine Replace
collectively called as “The 3Rs Principle”.
Needs for alternative methods
Because in laboratory animals may be:
Poisoned.
Deprived of food water and sleep.
Applied with skin and eye irritants.
Subjected to psychological stress.
Deliberately infected with the infected disease.
Dermal Irritation and Dermal Toxicity Studies Dinesh Gangoda
Dermal irritation and Corrosion test guidelines 204.
Dermal irritation is the production of reversible damage of the skin following the application of a test chemical for up to 4 hours.
Corrosive reactions are typified by ulcers, bleeding, bloody scabs, and, by the end of observation at 14 days, by discolouration due to blanching of the skin, complete areas of alopecia, and scars. Histopathology should be considered to evaluate questionable lesions. [1]
Dermal corrosion is the production of irreversible damage of the skin; namely, visible necrosis through the epidermis and into the dermis, following the application of a test chemical for up to four hours.[2]
REFERENCES
OECD/OCDE, Test No. 404: ‘‘Acute Dermal Irritation/Corrosion’’, 28 July 2015 OECD Publishing, peris, Page no, 1- 8.
Robert A., Turner., Screening Methods in Pharmacology; 1st edition; Academic press an imprint of Elsevier, pp, 279- 281.
OECD Guideline for testing of chemicals (1981). ‘‘Repeated Dose Dermal Toxicity’’, 21/28- day Study.
Toxicity is the science dealing with properties, action, toxicity, fatal dose detection or interpretation of result of toxicological analysis & treatment of poison.
Toxicity studies helps to avoid adverse effect and enhance the safety of drug.
This slide provides the information about toxicity screening on experimental animals.
Medical and Healthcare Professions:
Medical Doctors: Physiology forms the foundation for medical education. It is essential for diagnosing, treating, and preventing diseases. Doctors need a deep understanding of how the body's systems work to provide effective patient care.
Nurses: Nurses rely on physiology to monitor patients' vital signs, administer medications, and provide overall care. Understanding physiology is vital for patient safety.
Pharmacists: Pharmacists require knowledge of physiology to understand drug interactions, mechanisms of action, and potential side effects.
Biomedical Research:
Physiologists and researchers use knowledge of physiology to conduct experiments, develop new therapies, and advance medical science. This research is critical for discovering treatments for diseases.
Sports Science and Exercise Physiology:
Understanding how the body responds to exercise and physical activity is essential in sports science. Coaches, athletes, and fitness professionals rely on this knowledge to optimize training regimens and improve performance.
Nutrition and Dietetics:
Nutritionists and dietitians use physiology to understand how nutrients affect the body's various systems. This knowledge helps in designing diets to manage health conditions and promote overall well-being.
Pharmaceutical and Biotechnology Industries:
Professionals in these industries need to understand the physiological effects of drugs and biotechnological products to develop safe and effective treatments.
Biomechanics:
Physiological principles are fundamental in biomechanics, which is crucial in fields like orthopedics, physical therapy, and engineering to design prosthetics and improve mobility.
Environmental Science:
Environmental scientists study the physiological responses of organisms to changes in their environment, which is essential for understanding the impact of climate change and pollution on ecosystems.
Psychology and Neurobiology:
Understanding the physiological basis of behavior and cognition is critical in psychology and neuroscience. This knowledge helps in researching and treating mental health disorders.
Public Health:
Public health professionals need to comprehend the physiological aspects of disease transmission and prevention, especially in epidemiology and health policy development.
Education and Science Communication:
Educators and science communicators use physiology to teach students and the general public about the importance of health and wellness, disease prevention, and medical advancements.
Personal Well-Being:
Knowledge of physiology helps individuals make informed decisions about their health, leading to a healthier lifestyle, better disease prevention, and improved quality of life.
In summary, the study of physiology is a cornerstone of various disciplines and professions, impacting healthcare, research, sports, nutrition, industry, and more. It equips students with a deep understanding of how the human body functions, en
Acute eye irritation test as per OECD guidelinesmadhvi Chaubey
toxicological testing studies as per OECD guidline.
Toxicology is the branch of biology, chemistry and medicine concerned with the study of the adverse effects of chemicals on living organisms.
As per OECD test no. 405 : acute eye irritation test should be done as according to the procedure mentioned under guideline's section.
Dear Friends,
This is my 3rd presentation, which will help you to understand the depth knowledge of acute eye irritation/corrosion (OECD-405) study in rabbit.
REPRODUCTIVE TOXICITY STUDIES, Definition
Introduction, OECD guidelines for reproductive toxicity studies
Principle of the test, Description of Method, Procedure, Experimental Schedule, Data and Reporting, Results, Male Fertility Toxicological Studies
Ms. I. Sai Reddemma.
Department of Pharmacology
OECD Test Guideline 420: Acute Oral Toxicity - Fixed Dosepp_shivgunde
OECD Test Guideline 420: Acute Oral Toxicity - Fixed Dose
Guideline 420 was adopted in July 1992 as the first alternative to the conventional acute toxicity test.
Alternative methods to animals testing are the development and implementation of test method that avoid use of live animals or use of less animals in method.
The council directive on protection of animals used for experiments and scientific purpose in article 23
“The commission and member states should encourage
research into development and validation of alternative methods which could provide the same level of information as that obtained in experiment using animals but which involves less animal”.
Alternative methods able to do:
Reduce Refine Replace
collectively called as “The 3Rs Principle”.
Needs for alternative methods
Because in laboratory animals may be:
Poisoned.
Deprived of food water and sleep.
Applied with skin and eye irritants.
Subjected to psychological stress.
Deliberately infected with the infected disease.
Dermal Irritation and Dermal Toxicity Studies Dinesh Gangoda
Dermal irritation and Corrosion test guidelines 204.
Dermal irritation is the production of reversible damage of the skin following the application of a test chemical for up to 4 hours.
Corrosive reactions are typified by ulcers, bleeding, bloody scabs, and, by the end of observation at 14 days, by discolouration due to blanching of the skin, complete areas of alopecia, and scars. Histopathology should be considered to evaluate questionable lesions. [1]
Dermal corrosion is the production of irreversible damage of the skin; namely, visible necrosis through the epidermis and into the dermis, following the application of a test chemical for up to four hours.[2]
REFERENCES
OECD/OCDE, Test No. 404: ‘‘Acute Dermal Irritation/Corrosion’’, 28 July 2015 OECD Publishing, peris, Page no, 1- 8.
Robert A., Turner., Screening Methods in Pharmacology; 1st edition; Academic press an imprint of Elsevier, pp, 279- 281.
OECD Guideline for testing of chemicals (1981). ‘‘Repeated Dose Dermal Toxicity’’, 21/28- day Study.
Toxicity is the science dealing with properties, action, toxicity, fatal dose detection or interpretation of result of toxicological analysis & treatment of poison.
Toxicity studies helps to avoid adverse effect and enhance the safety of drug.
This slide provides the information about toxicity screening on experimental animals.
Medical and Healthcare Professions:
Medical Doctors: Physiology forms the foundation for medical education. It is essential for diagnosing, treating, and preventing diseases. Doctors need a deep understanding of how the body's systems work to provide effective patient care.
Nurses: Nurses rely on physiology to monitor patients' vital signs, administer medications, and provide overall care. Understanding physiology is vital for patient safety.
Pharmacists: Pharmacists require knowledge of physiology to understand drug interactions, mechanisms of action, and potential side effects.
Biomedical Research:
Physiologists and researchers use knowledge of physiology to conduct experiments, develop new therapies, and advance medical science. This research is critical for discovering treatments for diseases.
Sports Science and Exercise Physiology:
Understanding how the body responds to exercise and physical activity is essential in sports science. Coaches, athletes, and fitness professionals rely on this knowledge to optimize training regimens and improve performance.
Nutrition and Dietetics:
Nutritionists and dietitians use physiology to understand how nutrients affect the body's various systems. This knowledge helps in designing diets to manage health conditions and promote overall well-being.
Pharmaceutical and Biotechnology Industries:
Professionals in these industries need to understand the physiological effects of drugs and biotechnological products to develop safe and effective treatments.
Biomechanics:
Physiological principles are fundamental in biomechanics, which is crucial in fields like orthopedics, physical therapy, and engineering to design prosthetics and improve mobility.
Environmental Science:
Environmental scientists study the physiological responses of organisms to changes in their environment, which is essential for understanding the impact of climate change and pollution on ecosystems.
Psychology and Neurobiology:
Understanding the physiological basis of behavior and cognition is critical in psychology and neuroscience. This knowledge helps in researching and treating mental health disorders.
Public Health:
Public health professionals need to comprehend the physiological aspects of disease transmission and prevention, especially in epidemiology and health policy development.
Education and Science Communication:
Educators and science communicators use physiology to teach students and the general public about the importance of health and wellness, disease prevention, and medical advancements.
Personal Well-Being:
Knowledge of physiology helps individuals make informed decisions about their health, leading to a healthier lifestyle, better disease prevention, and improved quality of life.
In summary, the study of physiology is a cornerstone of various disciplines and professions, impacting healthcare, research, sports, nutrition, industry, and more. It equips students with a deep understanding of how the human body functions, en
the presentation give complete explanantion on OECD guideline 403 of acute toxicity study for inhalation and the test subject used in the studies. the presentation give complete explanation of the guideline 403 and also describe the observation result and data reporting of the guideline
Testing of Dermatotoxicity by OECD guidelinesGAUTAM KHUNE
This ppt deals with all the testing of dermatotoxicity by OECD guidelines 402 (Acute dermal toxicity) 410(Repeated dose dermal toxicity),411(Subchronic dermal toxicity), 434(
A.D.T Fixed dose procedure), 435(
In vitro membrane barrier method for
Skin corrosion)
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
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
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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.
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.
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
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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
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
2. PRINCIPLE & PURPOSE
• The original acute Dermal Toxicity Guideline TG 402 was adopted in 1987.
• A number of recent publications have analyzed the results of acute oral and
dermal toxicity studies for hundreds of pesticide active substances and
thousands of industrial chemicals, finding that regulatory classifications
based on oral acute toxicity data were equivalent to or more severe than those
derived from dermal data in more than 98 percent of cases, calling into
question the value of routine testing for this endpoint.
• Based on the recommendations of several expert meetings, international
agreement had been reached on harmonised LD50 cut-off values for the
classification of chemicals.
3. A REVISION OF OECD 402 WAS CONSIDERED TIMELY BECAUSE:-
i) Testing in one sex (usually females) is generally considered sufficient.
ii) In order for a point estimate to be meaningful, there is a need to estimate
confidence intervals.
The stepwise procedure in OECD Test Guideline 402, with the use of up to 3
animals of a single sex per step, has been adapted from the acute toxic class
method and the fixed dose procedure set out in OECD Test Guideline 420.
Depending on the mortality and/or the moribund status of the animals, further
steps may be necessary to allow judgement on the acute toxicity of the test
chemical.
The test chemical is administered to single animals in a sequential manner with
two animals used at any selected dose level in the main study.
4. TEST SYSTEM
Selection of Species – Rat, Other Species – Justification Required
Animal Procurement – Healthy young adult animals should be procured from CPCSEA
approved Animal Breeding Facility
Body Weight – Rat body weight (200g-300g), Guinea pig body weight (350g-450g), Rabbit
body weight (1.5kg-3.0kg)
Age – Rat (8-12 weeks old)
Guinea pig (5-6 weeks old)
Rabbit (at least 12 weeks old)
Sex - Male / Female (Nulliparous & Non-Pregnant)
Acclimatization – Minimum 5 days
Randomization - Manually
Housing - Caged individually
Identification Temporary – Animal No. : Tip of Tail with Red Marker pen
Permanent – Animal No.: Base of tail with Black Marker pen
Note: Cage should be identified by – Study No, Test item code, Study code, cage No, species, sex,
No. of animals, Dose/ Conc, Group No. & Animal No.
5. HUSBANDRY
Temperature – 22 ± 3oC for rats & 20 ± 3oC for rabbits and Guinea Pigs.
Relative Humidity – 30 to 70%
Air Changes – At least 10-15 ACH
Photo Period – 12 hours dark & 12 hours light
Bedding – Sterilized Paddy Husk
Feed – Ad libitum
Water – Ad libitum
PREPARATION OF TEST ITEM
Solids – Pulverized (if necessary) before used and moistened with distilled water or
vehicle.
Liquid – applied directly with out dilution.
6. PREPARATION OF TEST ANIMALS
• One day before application of test item, 10 % of the total body surface area of the animals
will be clipped with electric clipper/shaved with razor blade/ depilated with VEET cream.
•The position of clipping will be the area starting at the scapulae (shoulders) to the wing of
the Ilium (hipbone) and half way down the flank on each side.
7. TEST ITEM APPLICATION
• Test item should be applied uniformly over a 10 % area of total body surface (approx
4cm x 4cm area of skin covered by test item) with porous gauge dressing and non
irritating tape for a period of 24 hours.
• After 24 hours exposure period, residual test item should be removed with distilled
water.
BODY WEIGHTS
•Body weights should be taken –
Animal procurement
Randomization
Day 0 (prior to Administration), Day 7, Day 14 and at death
8. DOSE RANGE FINDING STUDY
When there is no or insufficient information on a test chemical, a dose-range
finding study using 1 animal at a starting dose of 200 mg/kg body weight is
recommended to minimise animal use and optimise the study design
Based on the outcome in the range-finding study, the main study can be
conducted with 2 further animals to confirm the classification outcome.
LIMIT TEST
If information is available for the test chemical, a different starting dose may be
chosen, e.g. 50, 1000 or 2000 (akin to a limit dose) mg/kg bw, following the
same procedure (range-finding study followed by main study), based on the
GHS Categories for acute dermal toxicity.
11. OBSERVATIONS
Animals are observed immediately after dosing at least once during the first 30 minutes,
periodically during the first 24 hours, with special attention given during the first 2 to 6 hours
after the beginning of the exposure period and daily thereafter, for a total of 14 days.
Animals found in a moribund condition and animals showing severe pain and/or enduring
signs of severe distress should be humanely killed without delay. When animals are killed for
humane reasons or found dead, the time of death should be recorded as precisely as possible.
OBSERVATIONS SHOULD INCLUDE:-
Changes in skin, fur, eyes, mucous membranes, also respiratory, circulatory, autonomic,
central nervous systems, somatomotor activity and behaviour pattern.
Attention should be directed to observations of tremors, convulsions, salivation, diarrhoea,
lethargy, sleep and coma.
In addition, the treatment site may be observed at 24, 48 and 72 hours after removal of test
chemical using the Draize criteria, as these data may be useful for waiving the need for a
separate in vivo skin irritation study.
12. REFERENCES
RCC_TOX_006_V03.
OECD Guidelines for the Testing of Chemicals, Number 402 "Acute Dermal
Toxicity", adopted 24th February 1987 .
CPCSEA Guidelines for Laboratory Animal Facility. Indian Journal of Pharmacology.
2003; 35: 257-274.
Guide for the Care and Use of Laboratory Animals, Institute of Laboratory Animal
Resources. Commission on Life Sciences. National Research Council. National
Academy Press. Washington, D.C. 1996.
Guidance Document on the Recognition, Assessment and Use of Clinical signs as
humane endpoints for Experimental Animals used in Safety Evaluation.
ENV/JM/MONO(2000)7. OECD, December, 2000.
EC Guideline - B.3. Acute Toxicity (Dermal).
EPA - Health Effects Test Guidelines OPPTS 870.1200 Acute Dermal Toxicity.
WHO TOXICITY CLASSIFICATION