The study of diseases, including their causes and effects.

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Can diseases be transmitted wirelessly? [on hold]

According to the recent research about Electromagnetic Signals from Bacterial DNA (A. Widom, J. Swain, Y. N. Srivastava, S. Sivasubramanian) it seems there is a possibility of a "wireless" version of ...
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1answer
33 views

What is the difference between clinical and non-clinical depression, and is there a term for different severity of the bipolar disorder?

I was looking for a term which describes a bipolar disorder of lesser severity. I know from experience from someone I know well, what a very severe case of the bipolar disorder looks like, when an ...
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2answers
198 views

Why does a blood test show ethanol when no alcohol was consumed?

Why would ethanol show up in a blood test if a person had not been drinking alcohol in many years. What are other reasons for showing ethanol?
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3answers
968 views

Why is the current Ebola outbreak different from previous outbreaks?

I don't know if this question has an answer at this time, but I would like to know if there is some biological reason why the current Ebola outbreak is so much more complicated and widespread than in ...
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0answers
18 views

Subtypes of Acute myeloid leukemia

I am a computer scientist with no biological background and working on analyzing lab results of patients with Acute myeloid leukemia. They have been tagged with following subtypes of AML: AML with ...
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1answer
213 views

Can a bacteriophage be used to treat bacterial diseases?

Some bacteriophages reproduce using the lytic cycle which ends with the destruction of the host bacterial cell. I was wondering if theoretically this could be used theraputically to treat bacterial ...
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2answers
158 views

Standard Process Identification of New Disease outbreak Causing Pathogen

Is the any standard procedure or protocol followed for the identification of cause of new disease outbreak(or new pathogen)? Is it different for different countries?
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1answer
162 views

Why do humans seem so much more prone to disease than animals? [closed]

It seems like when we observe animals in the wild, the occurrence of noticeable disease in adult individuals is much lower than in humans. Why? There are a number of reasons that this could happen, ...
3
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1answer
36 views

Why do we feel cold on having fever?

Why do we feel terribly cold on catching fever of any sort, however our body becomes hotter? Why is it that a rise in temperature makes the sufferer feel colder? Also, sweating symbolises betterment ...
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1answer
34 views

regarding genetic disorders related to protein production

I am not completely familiar with biology, but i had a genetics course in college along with practicals. Forgive me if there is something wrong with my question. Is there a genetic disease which ...
3
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1answer
62 views

how can a pseudo coelomate like ascaris lay 200k eggs in a single day

as per this site the dimensions of eggs of ascaris lumbricoides are 78-105 microns and as it is shown in the pic down here only half of the body cavity would be used for storage of all the stages of ...
3
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1answer
34 views

What is the reason behind more severe proteinuria in nephrotic syndrome than in nephritic syndrome?

Why is there less protein loss via urine in case of nephritic syndrome than in case of nephrotic syndrome?
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24 views

Plateletpheresis for hemophilia

Plateletpheresis is seperation of platelets from whole blood and putting the leukocytes and erythrocytes back into the blood. If the person donating platelets does not have hemophilia than could a ...
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1answer
102 views

Why is there no cure for Dandruff?

It looks like a simple problem, affecting almost half of the population at the post-pubertal age and of any gender and ethnicity [wikipedia]. What is so complex about finding a cure? Also, if you know ...
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1answer
128 views

Why doesn't Diabetes cause death by starvation?

The main cause for diabetes is lack of insulin in the body. Insulin is the hormone that allows body cells to absorb glucose from the blood. With out insulin, the body cells can't get glucose from the ...
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0answers
63 views

Is there an evolutionary explanation for depression?

Evolutionarily speaking, depression (both clinical depression and temporary sadness) is a curious phenomenon. Since being depressed is likely to increase the chance of a person with it to commit ...
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1answer
87 views

Why basement membrane thickens in diabetes mellitus?

Untreated diabetes mellitus may lead to blindness and kidney failure because the basement membrane of small blood vessels in these organs thickens due to increased production of collagen and laminin. ...
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1answer
47 views

Do any nonhuman species have effective ebola immunity?

I've read that ebola is an effective killer in humans because it has the ability to interrupt dendritic cells from manufacturing proteins that cause the immune system to destroy the dendritic cells ...
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1answer
17 views

Is there a Lyme disease vaccine?

Each Spring, our local health unit begins its campaign of Lyme disease and tick-bite awareness. I was wondering if there has ever been a vaccine available, and if so, what antigen does it target?
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59 views

What is the name of systemic tension of muscles?

I meat a overtrained friend (25 years old) who cannot rest. He has all muscles and most of the skin very tense. He is practising regularly in gym and sleep badly. He moves like a stick figure and has ...
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0answers
23 views

Which disorders are fully concordant?

I work in neuroscience, mostly Alzheimer's disease (AD), with some work in autism spectrum disorder (ASD). The work is in gene regulation and epigenomics. I'm familiar with monozygotic twin (MZ) ...
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1answer
65 views

Do people with gout live longer?

Antioxidants reduce damage to tissue (by scavenging the free radicals) and thus may reduce ageing.It is known that Uric acid is a very good antioxidant. People with gout have excess accumulation of ...
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1answer
237 views

Near point and far point of myopic eye

Suppose a person wears the specs of power -6D, the far point for that person is 16cm. But the near point of normal eye is 25cm. So, is the near point of a person with myopia (having far point less ...
3
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2answers
213 views

How was the Huntington's disease gene's location found?

I read in the book "Why we get sick." by Nesse and Williams that: Steady detective work and fabulous luck have enabled geneticists to pinpoint the Huntington's gene on the short arm of ...
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1answer
55 views

Why don't we see new diseases more often? Or, ever?

It seems like every disease we ever hear about is something that's been around since ancient times, since thousands of years ago. Of course new diseases were catalogued over the course of the past ...
3
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1answer
28 views

Functioning of BCG vaccine

I read (from Nature Volume507, S4–S7 (06 March 2014) : For reasons that are poorly understood, BCG protects only infants; it is ineffective in older children and adults. Its efficacy also ...
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1answer
80 views

What is the difference between fibrogenesis and fibrosis?

Fibrosis is the formation of excess fibrous connective tissue in an organ or tissue in a reparative or reactive process. I used the word "fibrogenesis" as the outcome of acute inflammation (healing). ...
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1answer
15 views

Can pulmonary infarction be asymptomatic?

I think it can because there are many parts in lungs. Like for some COPD patients. However, I am not sure if COPD patients can have infarction. Lungs have parallel circulation. Red infarct is ...
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2answers
69 views

Can a fungus become resistant to a chemical such as Potassium Permanganate?

A friend used potassium permanganate solution to treat tinea on the hands/feet but after some initial success, the tinea seems to be making a comeback. Could the fungus develop resistance to potassium ...
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1answer
14 views

Which inflammatory response with Cytomegalovirus infection?

I am thinking about inflammation process with Cytomegalovirus infection. I first thought it is about chronic inflammation, but then changed my mind because of virus infection. I think cytokines must ...
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3answers
346 views

How do a viruses or bacteria survive outside the body long enough to spread?

Say I cough on my table, then someone else touches it and picks up something I've got... how is it that these things can live outside the body, how long can they manage it, and how long is generally ...
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1answer
18 views

What are these white areas of coronary thrombosis?

Please, see the picture where the areas (1,2,3) look little yellow: I think these areas are fat, platelets and/or air. I think 3 is fat/platelets while 1 is air/platelets. There also exists white ...
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1answer
25 views

Are there any forms of heart failure where cell size decreases?

I think hypertrophy happens in most of the cases. However, I am not sure if hypertrophy always happens. I started to think about wet lungs (pulmonary reason for the left-sided heart failure). Can the ...
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1answer
43 views

What is ischaemia exactly?

I think it is decreased blood supply to organs and tissues. I also think it is the stopped circulation. However, both ones cannot be right, I think. What is ischaemia exactly?
2
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1answer
31 views

What can thrombosis lead to?

I am thinking this question. Thrombosis can result in organisation of thrombus, sepsis thromboembolism, fibrinoid swelling adiposity. I fibrinoid swelling (edema) (4) can occur. Also, I think (3) ...
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2answers
133 views

Electronic cigarettes (e-cigs), any health risks?

Background: An electronic cigarette (e-cig or e-cigarette) is a battery-powered device which simulates tobacco smoking patented in 1963 by Herbert A. Gilbert. It generally uses a heating element ...
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1answer
34 views

What are the purposes of granulocytes in acute inflammation?

I heard the phrase Neutrophilic leucocytes are kings in the acute inflammation. Neutrophils are granulocytes, while leucocytes are not granulocytes. I think this statement refers to the fact ...
5
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2answers
70 views

Improving myopia

I have a friend who no longer needs glasses. He previously had myopia in both eyes but over the years it has improved until he no longer needs glasses clinically. He's had glasses for over 30 years ...
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1answer
23 views

What are the movement mechanisms of thrombus?

I am thinking how thrombus (veins, arteries and heart) can move. Secondary mechanisms come to my mind only: some enzyme which lyses it, probably adhesion mechanism. Blood circulation (flow rate) ...
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1answer
22 views

How many systemic reactions in inflammation?

I have this sentence in my notes Inflammation consists of two local reactions and one systemic reactions. which is difficult for me to accept. Two local reactions are vascular and cellular. I ...
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1answer
253 views

I don't wash my hands and never get sick. Any theories? [closed]

I have only been sick a few times in my life(I'm 21 and probably 3-4 times) and even when I am sick I don't feel that bad and I am over it within a day or two. My family has always given me slack for ...
0
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1answer
41 views

Which processes are included in the process called cells eating themselves?

I am reading about atrophy and I am thinking to which processes the phrase cells eating themselves refer to. Cells need something to survive these difficult times. To decrease protein synthesis ...
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0answers
54 views

What is the biochemical pathway of fluoride?

Fluoride is a common active ingredient in tooth paste to prevent dental caries. It is also added or removed from the water supply in some communities for the same reason, but in children only. My ...
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2answers
70 views

Why it is rare for person to get infected with two Pathogens?

Why is it rare for a person to have 2 (or more) infectious diseases (for example: Flu & Cold together at the same time)? Although it's rare, it happens when the immune system is weak (e.g when ...
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2answers
57 views

Standard Classification of Disease

I am working on a project for health center. It involves the creation of a database of all diseases. Currently I want to classify disease on the base of their category based on international standard. ...
3
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1answer
99 views

How much influence does toxoplasmosis have on personality and intelligence?

Latent toxoplasmosis effects up to 1/3 of the human population, and up to 40% of the population in Australia. I have heard that latent toxoplasmosis has many significant undesirable effects on ...
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1answer
56 views

Can pets catch the cold?

Last night I was drying my cat with a towel after shenanigans in the rain and she sneezed! Questions Can cats/dogs/hamsters or other pets catch the cold? How quickly do they recover?
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1answer
111 views

What are the visual, behavioral similarities and differences between Yellow Fever Mosquito (Aedes aegypti) and the Tiger Mosquito (Aedes albopictus)?

The Tiger and Yellow Fever Mosquito visually look very similar. Recognizing the difference is important for tracking and controlling the spread of Yellow Fever, Dengue fever and other diseases. ...
7
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4answers
134 views

Organisms as potential Bio-Weapons?

Question: Given that with genetic engineering we can customize organisms as bio-weapons. Which species have the most worrying potential to be weaponized for mass destruction? Background: ...
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1answer
1k views

Do we actually get more sick (flu/cold) during winter?

The word flu derives from the Italian phrase "influenza de freddo" meaning "influence of the cold". Indeed it is that time of the year when my colleagues seem to have the flu/cold more often than ...