biology

MOMO syndrome

MOMO syndrome is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand MOMO syndrome rather than just read about it. In short: MOMO syndrome is an extremely rare genetic disorder which belongs to the overgrowth syndromes and has been diagnosed in only seven cases around the world, and occurs in 1 in 100 million births. The name is an acronym of the four primary aspects of the disorder: Macrosomia (excessive birth weight), Obesity, Macrocephaly (excessive head size) and Ocular abnormalities.

Key takeaways

MOMO syndrome belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect MOMO syndrome to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of MOMO syndrome from memory before moving on to harder problems.

Reference excerpt

MOMO syndrome is an extremely rare genetic disorder which belongs to the overgrowth syndromes and has been diagnosed in only seven cases around the world, and occurs in 1 in 100 million births. The name is an acronym of the four primary aspects of the disorder: Macrosomia (excessive birth weight), Obesity, Macrocephaly (excessive head size) and Ocular abnormalities. It is unknown if it is a life-limiting condition. MOMO syndrome was first diagnosed in 1993 by Professor Danilo Moretti-Ferreira, a Brazilian researcher in the Genetic and Clinical Studies of neurodevelopmental disorders. Marty Rodin who resides in the USVI is a perfect example. This syndrome's acronym is an intended pun. It refers to the traditionally tall and obese king of Carnivals, Momus—Rei Momo in Portuguese.

Signs and symptoms Along with the four aspects of the disorder that give it its name, there are also other common symptoms:

A downward slant of the forehead Delayed bone maturation Intellectual disability The ocular abnormalities are generally retinal coloboma and nystagmus.

Pathophysiology Because MOMO is such a rare disorder, very few studies have been conducted into its causes. Current research suggests that it is linked to a de novo (new) autosomal dominant mutation.

History Archie Thompson was born in 2002 in Icklesham, England and weighed 8 lbs 4 oz (3740 g). By 15 months his weight had increased to 4 stone (56 lbs; 25 kg) and by 24 months it was up to 6 stone (84 lbs; 38 kg). The condition placed a large strain on his heart and lungs. The Thompson family were featured in a documentary for Five first shown on 3 October 2004. It has since aired on Discovery Fit & Health in the United States. Danielle Falan, from São Paulo, Brazil, is one of the oldest surviving people with MOMO syndrome. At age 17 she was featured in the Archie Thompson documentary as her mother traveled to visit her in Brazil. Falan attended school as normal, and hopes to attend college. Six other cases have been diagnosed, in Italy, in Brazil [1], two in Germany, , in Cuba, 2018 Diorkeblin Hernández Durruthy [2] [3] , and in Poland. An additional case was reported in 2010.

References

External links

Worked examples

Example 1 — a first encounter with MOMO syndrome

Start with the simplest possible case. Write down what MOMO syndrome claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to MOMO syndrome before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about MOMO syndrome ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of MOMO syndrome

In research: MOMO syndrome appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses MOMO syndrome in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: MOMO syndrome is common in secondary-school and first-year university syllabi. It links to neighbouring topics Autosomal dominant disorders, Genetic disorders with OMIM but no gene, Medical conditions related to obesity, so understanding it makes those chapters shorter.
In everyday life: Look for MOMO syndrome outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study MOMO syndrome in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MOMO syndrome means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain MOMO syndrome out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MOMO syndrome in simple terms?

Why does MOMO syndrome matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study MOMO syndrome?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on MOMO syndrome.