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Doctor insights on: Is Gender A Factor In Pertussis

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I've heard the mother's age at conception is important (below 35 usually best) for a baby's health. How much of a factor is the father's age?

I've heard the mother's age at conception is important (below 35 usually best) for a baby's health.  How much of a factor is the father's age?

Age effects: Women get the blunt of aging effect due to the basics of reproduction.Women are born with all the eggs they will ever release and the effect of background radiation/toxic exposures add up.Men produce sperm from stem cells and essentially make a new batch daily.The healthiest and best swimmers are the most successful for conception.This natural selection spares some of the age issue for men. ...Read more

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What is a clotting factor deficiency in a child?

What is a clotting factor deficiency in a child?

Depends on which : Factor. There are about a dozen clotting factors and any of those could be deficient. Some are serious others not so much. It is not feasible to provide specific suggestion from the information provided. ...Read more

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Is vaginal tightness a factor of age?

Is vaginal tightness a factor of age?

A minor factor...: The biggest factor is the number of vaginal deliveries. lacerations at delivery, etc. Age is a secondary factor. Best wishes! ...Read more

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Is the prevalence of a given genetic disease revealed by a census?

Is the prevalence of a given genetic disease revealed by a census?

Not specifically: The last time i filled out my form there was no such personal medical information collected. Most prevalence data are generated by such things as newborn screening programs and reported cases within a given population. Since the number of births within a given population is collected, researchers compare the number treated with the number born to get a prevalence. These are estimates. ...Read more

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Is there a genetic test in UK that can tell if a person is a poor metabolizer with Clopidogrel having two copies of each of the CYP2C19 gene.?

Is there a genetic test in UK that can tell if a person is a poor metabolizer with Clopidogrel having two copies of each of the CYP2C19 gene.?

Phenotype is the big: issue, not genotype, because we each live with the complex results of both genotype combined with all our complex internal controls, beyond the any gene or sets of genes alone. Since clopidgrel is a platelet suppressing, clot-slowing agent, best check clotting with & without whatever trial dosage. The best of the clotting tests is TEG, study: Thromboelastography, commonly used in hospitals. ...Read more

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Would there be a (big) difference in the measurement if a 12wk old fetus compared to a 9wk old fetus? The gestational age would be determined in u/s?

Would there be a (big) difference in the measurement if a 12wk old fetus compared to a 9wk old fetus? The gestational age would be determined in u/s?

Yes: An first trimester sonogram is fairly accurate at dating a pregnancy (within a margin of error of about a week). At 12 weeks menstrual age with a viable pregnancy a sonogram measurement of 9 weeks would change the dating of the pregnancy and your due date should be based on that sonogram. Later sonograms should not change this established date. ...Read more

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Is being an african-american a risk factor for rickets?

Is being an african-american a risk factor for rickets?

Yes: Dark skinned individuals need more sunlight exposure compared to light skinned ones. ...Read more

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Is a woman with sc blood genotype a sickle cell carrier or patient. And what is the health implication of this especially during pregnancy?

Is a woman with sc blood genotype a sickle cell carrier or patient. And what is the health implication of this especially during pregnancy?

Hgb SC: Is a sickle cell syndrome but the genetics are different. A woman with HGB sc will pass either a HGB s gene, or a HGB c gene to her child. It is important to know what kind of HGB the father has-he should have a hemoglobin electrophoresis to find out how the child might be affected. Pregnancy complications are rare, but the baby can have a low weight, and rarely there are complications for the mom. ...Read more

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What is the probablity of a child being bipolar (type 2) if one parent is but not the other?

What is the probablity of a child being bipolar (type 2) if one parent is but not the other?

Unclear..: Research on this is extremely varied, ranging from about 3% to nearly 50%. It does seem as though there's a strong likelihood of a mood disorder but it is unclear how much of this is genetic vs environmental. In other words, it's not a given but parents should keep an eye out for developing mood symptoms. ...Read more

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What is the Incubation Period for contracting MRSA and is it a very important factor in proving liability?

What is the Incubation Period for contracting MRSA and is it a very important factor in proving liability?

MRSA: MRSA is everywhere now. May be difficult to prove that it was hospital acquired. Staph is all over our skin..so we do not talk about incubation periods like we do with other infections. when infection occurs..it occurs. ...Read more

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What is a factor that has contributed to the global increase in obesity?

What is a factor that has contributed to the global increase in obesity?

Too many 2 count: Where to start? Convenience foods, fast foods, commercial advertising for soda etc... Decrease in the importance of sit down family dinners... Obesity is a multifactoral problem with many causes that we have yet to identify. Fixing the obesity epidemic is also going to have to be tackled from several different angles.. ...Read more

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A flu vaccine has a probability of 70% of preventing a person who is inoculated from getting the flu, is this true?

A flu vaccine has a probability of 70% of preventing a person who is inoculated from getting the flu, is this true?

Give or take: The efficacy of the vaccine varies by season. Usually 60 to 80%. Here is CDC information: http://www.cdc.gov/flu/professionals/vaccination/effectivenessqa.htm ...Read more

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What is the single most important factor in reducing osteoporosis in older women?

What is the single most important factor in reducing  osteoporosis in older women?

Osteoporosis: There are many very good medications that can help control osteoporosis. The bone mineral density should be measured at least once a year while on therapy, or preferably every 6 months. ...Read more

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How common is melanoma in a male age 27?

How common is melanoma in a male age 27?

Why do you ask?: Not common. But the most common cancer death among young men. If a concern, see a dermatologist. ...Read more

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Is it true that the chances of having a child with a chromosomal abnormality increases as a womans age increases over 40 year?

Is it true that the chances of having a child with a chromosomal abnormality increases as a womans age increases over 40 year?

Yes: It actually increases to a small degree with every year after peak fertility in the mid 20's. At 40 the risk of a trisomy 21 down syndrome reaches 1% while at 45 it reaches 2%. This number is added to the random risk of 4% that any pregnancy has of an unexpected event (cleft palate, premi, other defect). ...Read more

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What stage in a woman's life is a woman considered to be at an age where pregnancy is riskier?

What stage in a woman's life is a woman considered to be at an age where pregnancy is riskier?

20 - 25 best age: Teenage women and women roughly starting at the age of 25 have increasing risk of all kinds of pregnancy complications - which many times with proper prenatal care can be managed and result in the delivery of a healthy baby while keeping mom safe. ...Read more

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How is it that cord factor antigen aid in the diagnosis of mycobacterium tuberculosis?

How is it that cord factor antigen aid in the diagnosis of mycobacterium tuberculosis?

Not for prime time: Cord factor is a molecule that enhances virulence of mtb. Usually the non-tuberculous mycobacterium dont have it so it can be used to differentiate between the infections. Why? Mtb is considered contagious & non-tb mycobacterium are not frequently so. Experimentally this factor has been looked at as a quick test to differentiate between the 2 types of infection. Not yet commercially available. ...Read more